An automatic rubber band tying machine for coil nail production

Abstract

The present invention belongs to the technical field of coil nail binding machines, and in particular to an automatic rubber band binding machine for coil nail production, comprising a frame and an automatic winding mechanism, a rubber band stretching and popping mechanism, a disc rubber band sorting and feeding mechanism and a coil nail grabbing mechanism installed in the frame, a protective cover for shielding the automatic winding mechanism, the rubber band stretching and popping mechanism, the disc rubber band sorting and feeding mechanism and the coil nail grabbing mechanism is provided on the top of the frame, the protective cover is detachably connected to the frame, and a square groove is provided on one side of the protective cover; the original structure and operation pattern are abandoned, and multi-station synchronous operations such as rubber band sorting and feeding, automatic material taking and stretching, automatic coiling, and automatic tying are adopted, so that the automatic rubber band bundling and transportation of coil nails in coil nail production without human intervention are realized, the operation labor is greatly reduced, the factory automation operation level is provided, and an important link is opened for the full unmanned operation of the nail making industry.

Description

Technical Field

[0001] The invention belongs to the technical field of coil nail binding machines, and in particular relates to an automatic rubber band binding machine for coil nail production. Background Art

[0002] At present, coil nail manufacturers need to manually tie coil nails with rubber bands and then pack them one by one. Generally, low-cost rubber bands are used as binding materials. Due to the irregular shape of the rubber bands, it is difficult to realize the automatic feeding, stretching and strapping of the rubber bands. Generally, manual material picking, rubber band stretching and bundling and packing operations are adopted. The nail making process is limited by the current situation of this industry. At present, there is still no perfect solution to this problem. After inquiry and investigation, some companies have tried to use higher-cost special plastic cable ties with special automatic strapping machines to realize the automatic bundling of coil nails, and use multi-axis straight-moving robots to replace manual nail picking and bundling.

[0003] However, the material cost of the special plastic strapping ties used is much higher than that of conventional rubber band materials. The total production cost is significantly increased by using this production process, which seriously affects the processing profit and cannot be promoted. In addition, the straight-moving robot has a complex structure, is expensive, and has simple movements, and cannot achieve multi-station transfer and synchronous operation. Due to the above limitations and the variability of working conditions in coil nail production, the above solutions and measures are not easy to extend and promote in the automated strapping production of coil nails. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides an automatic rubber band bundling machine for coil nail production, which has the characteristics of delicate structure, flexible action and low cost.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic rubber band bundling machine for coil nail production, comprising a frame and an automatic winding mechanism, a rubber band stretching and popping mechanism, a disc rubber band sorting and feeding mechanism and a coil nail grabbing mechanism installed in the frame, a protective cover for covering the automatic winding mechanism, the rubber band stretching and popping mechanism, the disc rubber band sorting and feeding mechanism and the coil nail grabbing mechanism is provided on the top of the frame, the protective cover is detachably connected to the frame, a square groove is provided on one side of the protective cover, an input conveyor belt is provided on one side of the frame, one end of the input conveyor belt passes through the square groove and extends into the protective cover, the input conveyor belt is fixedly connected to the frame, and the frame is connected to the input conveyor belt. An output conveyor belt is provided on an adjacent side surface, and the output conveyor belt is fixedly connected to the frame, and the output end of the input conveyor belt is provided with the automatic winding mechanism for winding the nail group, and the automatic winding mechanism is fixedly connected to the frame, and the inner end of the frame away from the input conveyor belt is provided with the disc-type rubber band sorting and feeding mechanism for grabbing rubber bands, and one side of the output end of the disc-type rubber band sorting and feeding mechanism is provided with the rubber band stretching and popping-out mechanism for putting the rubber band on the coiled nail, and the rubber band stretching and popping-out mechanism is fixedly connected to the frame, and a coiled nail grabbing mechanism for grabbing the coiled nails is provided between the automatic winding mechanism and the rubber band stretching and popping-out mechanism, and the coiled nail grabbing mechanism is located above the output conveyor belt.

[0006] Preferably, the automatic winding mechanism includes a bracket, a reduction motor, a transmission assembly, a magnetic axis push disk assembly and a withdrawal cylinder, the withdrawal cylinder is fixedly mounted on the inner wall of the bracket, the reduction motor is fixed to the output end of the withdrawal cylinder, the output end of the reduction motor is transmission-connected with the transmission assembly, the transmission assembly passes through the bracket and is connected with the magnetic axis push disk assembly, and the magnetic axis push disk assembly is transmission-connected with the bracket via the transmission assembly.

[0007] Preferably, the bracket is an "L"-shaped plate, and slide rail slider assemblies are provided on both sides of the withdrawal cylinder. The slide rail slider assemblies are fixedly connected to the bracket, and the reduction motor is slidingly connected to the bracket through the slide rail slider assemblies. The reduction motor is electrically connected to an external power supply, and the withdrawal cylinder is pneumatically connected to an external air source.

[0008] Preferably, the rubber band stretching and popping-out mechanism includes a mounting plate, a rotating motor, a mounting beam and a multi-joint clamp, the mounting plate is fixed to the inner side of the protective cover, the rotating motor is fixedly installed on the back side of the protective cover, and the output end of the rotating motor passes through the mounting plate and is fixedly connected to the mounting beam, there are two multi-joint clamps, which are respectively fixedly installed at both ends of the mounting beam, and the rotating motor is electrically connected to an external power supply.

[0009] Preferably, a rotating shaft is provided at the output end of the rotating motor, the rotating shaft is rotatably connected to the mounting plate, one end of the rotating shaft is fixedly connected to the mounting beam, and the other end is drivingly connected to the output shaft of the rotating motor.

[0010] Preferably, the two multi-joint clamps are centrally symmetrically distributed at both ends of the mounting beam.

[0011] Preferably, the disc-type rubber band sorting and feeding mechanism includes a mounting frame, a feeding arm, a multi-station feeding tray, a conical hopper, a feeding tray drive assembly and a feeding arm drive assembly, the mounting frame is fixedly mounted inside the protective cover, the multi-station feeding tray is rotatably mounted inside the mounting frame on a side close to the rubber band stretching and pop-up mechanism, the feeding tray drive assembly is fixedly mounted on the mounting frame, and the feeding tray drive assembly is transmission-connected to the multi-station feeding tray, the conical hopper is located below the multi-station feeding tray, and the multi-station feeding tray is fixedly connected to the mounting frame, the feeding arm is located on the opposite side of the multi-station feeding tray, and the feeding arm is fixedly connected to the mounting frame, a feeding arm drive assembly for driving the feeding arm is provided on the outer side of the mounting frame close to one end of the feeding arm, and the feeding arm drive assembly and the feeding tray drive assembly are both electrically connected to an external power supply.

[0012] Preferably, the coil nail grabbing mechanism includes a mounting support, a rotating cylinder, a mounting cross plate, a magnetic grabbing claw and a flip cylinder, the mounting support is fixedly mounted on the protective cover, the mounting cross plate is rotatably mounted on the mounting support, the rotating cylinder is fixed to the other side of the mounting support, the mounting cross plate is fixedly connected to the output end of the mounting support, both ends of the mounting cross plate are connected to the magnetic grabbing claw, the middle part of the mounting cross plate is fixedly connected to a flip cylinder for driving the magnetic grabbing claw, and the rotating cylinder and the flip cylinder are both electrically connected to an external power supply.

[0013] Preferably, a control cabinet is also provided on the protective cover, and the control cabinet is electrically connected to an external power supply. A human-machine interaction display is provided above the control cabinet, and the human-machine interaction display is fixedly connected to the frame. The human-machine interaction display is electrically connected to the automatic winding mechanism, the rubber band stretching and popping mechanism and the disc-type rubber band sorting and feeding mechanism.

[0014] Preferably, the two magnetic grabbing claws move alternately between the automatic winding mechanism and the rubber band stretching and popping-up mechanism.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In the present invention, the original structure and operation pattern are abandoned, and multi-station synchronous operations such as rubber band sorting and feeding, automatic material taking and stretching, automatic nail coiling, and automatic tying are adopted, so that the automatic rubber band bundling and transportation of coiled nails in coiled nail production without human intervention are realized, which greatly reduces the labor of operators, improves the level of factory automation operation, and opens an important link for the full unmanned operation of the nail making industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure after the protective cover is removed in the present invention;

[0020] Figure 3 It is a structural schematic diagram of the disc-type rubber band sorting and feeding mechanism in the present invention;

[0021] Figure 4 It is a structural schematic diagram of the rubber band stretching and popping-up mechanism in the present invention;

[0022] Figure 5 It is a structural schematic diagram of the automatic winding mechanism in the present invention;

[0023] Figure 6 It is a structural schematic diagram of the coil nail grabbing mechanism in the present invention.

[0024] In the figure: 1. rack; 11. protective cover; 12. human-machine interactive display; 13. control cabinet; 2. input conveyor belt; 3. output conveyor belt; 4. automatic winding mechanism; 41. bracket; 42. reduction motor; 43. transmission assembly; 44. magnetic axis push plate assembly; 45. slide rail slider assembly; 46. withdrawal cylinder; 5. rubber band stretching and popping mechanism; 51. mounting plate; 52. rotating motor; 521. rotating shaft; 53. mounting crossbeam; 54. multi-joint clamp; 6. disc rubber band sorting and feeding mechanism; 61. mounting frame; 62. feeding arm; 63. multi-station feeding tray; 64. conical hopper; 65. feeding tray drive assembly; 66. feeding arm drive assembly; 7. coil nail grabbing mechanism; 71. mounting support; 72. rotating cylinder; 73. mounting cross plate; 74. magnetic suction grabbing claw; 75. flip cylinder. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-6 The present invention provides the following technical solutions: an automatic rubber band bundling machine for coil nail production, comprising a frame 1 and an automatic winding mechanism 4, a rubber band stretching and ejecting mechanism 5, a disc rubber band sorting and feeding mechanism 6 and a coil nail grabbing mechanism 7 installed in the frame 1, a protective cover 11 for shielding the automatic winding mechanism 4, the rubber band stretching and ejecting mechanism 5, the disc rubber band sorting and feeding mechanism 6 and the coil nail grabbing mechanism 7 is provided on the top of the frame 1, the protective cover 11 is detachably connected to the frame 1, a square groove is provided on one side of the protective cover 11, an input conveyor belt 2 is provided on one side of the frame 1, one end of the input conveyor belt 2 passes through the square groove and extends into the protective cover 11, the input conveyor belt 2 is fixedly connected to the frame 1, and the frame 1 is connected to the input conveyor belt 2. An output conveyor belt 3 is provided on a side adjacent to the conveyor belt 2, and the output conveyor belt 3 is fixedly connected to the frame 1. An automatic winding mechanism 4 for winding a nail group is provided at the output end of the input conveyor belt 2, and the automatic winding mechanism 4 is fixedly connected to the frame 1. A disc-type rubber band sorting and feeding mechanism 6 for grabbing rubber bands is provided at the end of the interior of the frame 1 away from the input conveyor belt 2. A rubber band stretching and popping-out mechanism 5 for sleeved rubber bands on the coiled nails is provided on one side of the output end of the disc-type rubber band sorting and feeding mechanism 6. The rubber band stretching and popping-out mechanism 5 is fixedly connected to the frame 1, and a coiled nail grabbing mechanism 7 for grabbing coiled nails is provided between the automatic winding mechanism 4 and the rubber band stretching and popping-out mechanism 5. The coiled nail grabbing mechanism 7 is located above the output conveyor belt 3.

[0027] In this embodiment, the disc-type rubber band sorting and feeding mechanism 6 is mainly composed of a mounting frame 61, a feeding arm 62, a multi-station feeding tray 63, a conical hopper 64, a feeding tray driving assembly 65 and a feeding arm driving assembly 66. The mounting frame 61 is of open design, and is mainly used for supporting and fixing the conical hopper 64, the multi-station feeding tray 63, the feeding arm 62 and other components. The conical hopper 64 is located at the bottom of the mounting frame 61, which is conducive to the rubber band being hung on the convex hanging needle on the surface of the multi-station feeding tray 63. The multi-station feeding tray 63 is designed in a regular circular shape, and the main shaft in the elastic pushing mechanism is used for fixed support, which is convenient for equidistant circular operation. The feeding arm driving assembly 66 drives the feeding arm 62 to realize a 180-degree flip, and the tower-type feeding arms 62 on the left and right sides take the pieces alternately. The positioning buffer ensures the slow and stable movement of the feeding arm 62 and the accuracy of the stop position.

[0028] The rubber band stretching and popping-out mechanism 5 is composed of a mounting plate 51, a rotating motor 52, a mounting beam 53 and a multi-joint clamp 54. The fixed bracket for mounting the multi-joint clamp 54 is U-shaped and is made of light high-strength steel sheet metal welding. It is used to fix the double-stroke driving cylinder. The double-stroke driving cylinder is fastened to the lower end of the fixed bracket with bolts, and the two sides of the cylinder body are provided with guide rods and guide sleeves for guiding purposes. The first stroke of the double-stroke driving cylinder is used to drive multiple groups of multi-joint clamps 54 to stretch in the circumferential direction to the set limit point via a central hinged support fixed to the front end of the cylinder guide rod, thereby achieving the purpose of polygonal stretching of the rubber band. After the rubber band is stretched, the coiled nail is put into the center area of ​​the rubber band, and the double-stroke driving cylinder is extended to the second stroke. The central hinged arm of the multi-joint clamp 54 pushes the rubber band to be stretched and tilted inward. The rubber band contracts inward due to the tension and automatically pops out along the oblique direction, tightly hugging the outer surface of the coiled nail, so as to achieve the purpose of bundling the coiled nail. The rotating motor 52 drives the installation beam 53 to rotate, driving the two multi-joint clamps 54 to work alternately.

[0029] The automatic winding mechanism 4 is mainly composed of a bracket 41, a reduction motor 42, a transmission assembly 43, a magnetic shaft push plate assembly 44 and a withdrawal cylinder 46. The bracket 41 is made of light high-strength steel sheet metal welding and is used to fix the withdrawal cylinder 46 and the reduction motor 42. The withdrawal cylinder 46 drives the magnetic shaft push plate assembly 44 and the reduction motor 42 to move smoothly forward and backward along the slide rail slider assembly 45. The magnetic shaft push plate assembly 44 is driven by the transmission assembly 43 to ensure the automatic winding and rolling of the strip-shaped coil nails. The reduction motor 42 is connected to the transmission assembly 43 through a synchronous belt and a pulley. The two-stage deceleration of the reducer and the synchronous pulley increases the output torque while reducing the speed and reduces the inertia of the load;

[0030] The coil nail grabbing mechanism 7 is composed of a mounting support 71, a rotating cylinder 72, a mounting cross plate 73, a magnetic grabbing claw 74 and a flip cylinder 75. The flip cylinder 75 is connected through the mounting support 71 and acts on the magnetic grabbing claw 74 below. The coil nail grabbing mechanism 7 has a symmetrical structure on the left and right. The magnetic grabbing claw 74 fixes the workpiece being processed by the suction force generated by the suction cup body after the electromagnetic coil is energized.

[0031] Specifically, the automatic winding mechanism 4 includes a bracket 41, a reduction motor 42, a transmission assembly 43, a magnetic shaft push plate assembly 44 and a withdrawal cylinder 46. The withdrawal cylinder 46 is fixedly mounted on the inner side wall of the bracket 41. The reduction motor 42 is fixed to the output end of the withdrawal cylinder 46. The output end of the reduction motor 42 is transmission-connected with the transmission assembly 43. The transmission assembly 43 penetrates the bracket 41 and is connected with the magnetic shaft push plate assembly 44. The magnetic shaft push plate assembly 44 is transmission-connected with the bracket 41 through the transmission assembly 43. The bracket 41 is an "L"-shaped plate. Slide rail slider assemblies 45 are arranged on both sides of the withdrawal cylinder 46. The slide rail slider assembly 45 is fixedly connected to the bracket 41. The reduction motor 42 is connected to the magnetic shaft push plate assembly 44 through the slide rail slider assembly 43. The block assembly 45 is slidably connected to the bracket 41, the reduction motor 42 is electrically connected to the external power supply, the withdrawal cylinder 46 is pneumatically connected to the external air source, and the bracket 41 is made of light high-strength steel sheet metal welding and is used to fix the withdrawal cylinder 46 and the reduction motor 42. The withdrawal cylinder 46 drives the magnetic shaft push plate assembly 44 and the reduction motor 42 to move smoothly back and forth along the slide rail slider assembly 45. The magnetic shaft push plate assembly 44 is driven by the transmission assembly 43 to ensure the automatic winding and rolling processing of the strip coil nails. The reduction motor 42 is connected to the transmission assembly 43 through a synchronous belt and a pulley. The two-stage deceleration of the reducer and the synchronous pulley increases the output torque while reducing the speed and reduces the inertia of the load.

[0032] Specifically, the rubber band stretching and popping-up mechanism 5 includes a mounting plate 51, a rotating motor 52, a mounting beam 53 and a multi-joint clamp 54. The mounting plate 51 is fixed to the inner side of the protective cover 11, the rotating motor 52 is fixedly installed on the back side of the protective cover 11, and the output end of the rotating motor 52 passes through the mounting plate 51 and is fixedly connected to the mounting beam 53. There are two multi-joint clamps 54, which are respectively fixedly installed at both ends of the mounting beam 53. The rotating motor 52 is electrically connected to an external power supply. The output end of the rotating motor 52 is provided with a rotating shaft 521, the rotating shaft 521 is rotatably connected to the mounting plate 51, and one end of the rotating shaft 521 is connected to the mounting beam 53. The two ends of the multi-joint clamps 54 are symmetrically distributed at the two ends of the mounting crossbeam 53. The fixed bracket for mounting the multi-joint clamps 54 is U-shaped and is made of light high-strength steel sheet metal welding. It is used to fix the double-stroke driving cylinder. The double-stroke driving cylinder is fastened to the lower end of the fixed bracket with bolts, and the two sides of the cylinder body are provided with guide rods and guide sleeves for guiding purposes. The first stroke of the double-stroke driving cylinder is used to drive multiple sets of multi-joint clamps 54 to expand in the circumferential direction to the set limit point through the central hinged support fixed at the front end of the cylinder guide rod, so as to achieve the purpose of polygonal expansion of the rubber band. After the rubber band is stretched, the coiled nail is placed in the center area of ​​the rubber band, and the double-stroke driving cylinder extends the second stroke. The central hinged arm of the multi-joint clamp 54 pushes the stretch to tilt inward, and the rubber band contracts inward due to the tension, automatically pops out along the oblique direction, and tightly embraces the outer surface of the coiled nail, thereby achieving the purpose of bundling the coiled nails. The rotating motor 52 drives the mounting beam 53 to rotate, driving the two multi-joint clamps 54 to work alternately.

[0033] Specifically, the disc-type rubber band sorting feeding mechanism 6 includes a mounting frame 61, a feeding arm 62, a multi-station feeding tray 63, a conical hopper 64, a feeding tray driving assembly 65 and a feeding arm driving assembly 66. The mounting frame 61 is fixedly mounted inside the protective cover 11, and the multi-station feeding tray 63 is rotatably mounted on the inner side of the mounting frame 61 close to the rubber band stretching and pop-up mechanism 5. The feeding tray driving assembly 65 is fixedly mounted on the mounting frame 61, and the feeding tray driving assembly 65 is transmission-connected to the multi-station feeding tray 63. The conical hopper 64 is located below the multi-station feeding tray 63, and the multi-station feeding tray 63 is fixedly connected to the mounting frame 61. The feeding arm 62 is located on the opposite side of the multi-station feeding tray 63, and the feeding arm 62 is fixedly connected to the mounting frame 61. The outer side of the mounting frame 61 close to one end of the feeding arm 62 A picking arm driving assembly 66 for driving the picking arm 62 is provided. The picking arm driving assembly 66 and the feed tray driving assembly 65 are electrically connected to an external power supply. The mounting frame 61 is of open design, and is mainly used for supporting and fixing components such as the conical hopper 64, the multi-station feed tray 63 and the picking arm 62. The conical hopper 64 is located at the bottom of the mounting frame 61, which is convenient for the rubber band to be hung on the convex hanging needle on the surface of the multi-station feed tray 63. The multi-station feed tray 63 is of regular circular design, and the main shaft in the elastic pushing mechanism is used for fixed support, which is convenient for equidistant circular operation. The picking arm driving assembly 66 drives the picking arm 62 to achieve a 180-degree flip, and the tower-type picking arms 62 on the left and right sides take parts alternately. The positioning buffer ensures the slow and steady movement of the picking arm 62 and the accuracy of the stop position.

[0034] Specifically, the coil nail grabbing mechanism 7 includes a mounting support 71, a rotating cylinder 72, a mounting cross plate 73, a magnetic grabbing claw 74 and a flip cylinder 75. The mounting support 71 is fixedly mounted on the protective cover 11, the mounting cross plate 73 is rotatably mounted on the mounting support 71, the rotating cylinder 72 is fixed to the other side of the mounting support 71, the mounting cross plate 73 is fixedly connected to the output end of the mounting support 71, both ends of the mounting cross plate 73 are connected to the magnetic grabbing claw 74, and the middle part of the mounting cross plate 73 is fixedly connected to the output end of the mounting support 71. A flip cylinder 75 is fixedly connected to drive the magnetic grabbing claw 74. The rotating cylinder 72 and the flip cylinder 75 are electrically connected to an external power supply. The two magnetic grabbing claws 74 move alternately between the automatic winding mechanism 4 and the rubber band stretching and popping mechanism 5. The flip cylinder 75 is connected through the mounting bracket 71 and acts on the magnetic grabbing claw 74 below. The coil nail grabbing mechanism 7 has a symmetrical structure on the left and right. The magnetic grabbing claw 74 fixes the workpiece being processed by the suction force generated by the suction cup body after the electromagnetic coil is energized.

[0035] Specifically, a control cabinet 13 is also provided on the protective cover 11, and the control cabinet 13 is electrically connected to an external power supply. A human-machine interaction display 12 is provided above the control cabinet 13, and the human-machine interaction display 12 is fixedly connected to the frame 1. The human-machine interaction display 12 is electrically connected to the automatic winding mechanism 4, the rubber band stretching and popping mechanism 5 and the disc-type rubber band sorting and feeding mechanism 6. The control cabinet 13 is equipped with a leakage protection power switch, a contactor, an intermediate relay, and other circuit control devices and a PLC. The input interface of the PLC is connected to external sensors and input devices, such as position sensors, encoders and touch screens, through signal wires, and the output interface is connected to contactors, relays, solenoid valves, servo hydraulic control boards, servo motor controllers, etc. through signal wires. Different electrical signals from external sensors / touch screens are calculated through a dedicated software program and output to the external actuators The corresponding execution electrical signals of the action complete the closed-loop electrical automatic control of the whole machine and the confirmation and processing of the action results.

[0036] The working principle and use process of the present invention are as follows: in the process of bundling rubber bands, the welded row of nails are first fed into the automatic winding mechanism 4 through the feeding conveyor belt, and the product is wound and rolled by the automatic winding mechanism 4. After the winding is completed, the coiled nail grabbing mechanism 7 rotates the coiled nails and feeds them into the bundling position, and the scattered and disordered rubber band materials are fed into the rubber band stretching and ejecting mechanism 5 through the disc-type rubber band sorting feeding mechanism 6 and the picking arm 62. The rubber band stretching and ejecting mechanism 5 rotates to feed the rubber band into the sleeve taking position, and the double-stroke driving cylinder extends In the first stroke, the rubber band is first stretched out in a polygonal shape, and the double-stroke driving cylinder is extended in the second stroke. The central hinged arm of the multi-joint clamp 54 pushes the rubber band to be stretched out and tilted inward. The rubber band contracts inward due to the tension and automatically pops out along the oblique direction, tightly hugging the outer surface of the coil nail, so as to achieve the purpose of bundling the coil nails. The flipping mechanism on the coil nail grabbing mechanism 7 flips down 90 degrees, and the bundled coil nails are placed on the delivery conveyor belt located below it. Each mechanism flips left and right and operates synchronously in turn, and the automatic bundling operation of coil nail production can be completed.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic rubber band tying machine for coil nail production, characterized by: The invention comprises a frame (1) and an automatic winding mechanism (4), a rubber band stretching and ejecting mechanism (5), a disc-type rubber band sorting and feeding mechanism (6) and a coil nail grabbing mechanism (7) installed in the frame (1); a protective cover (11) for shielding the automatic winding mechanism (4), the rubber band stretching and ejecting mechanism (5), the disc-type rubber band sorting and feeding mechanism (6) and the coil nail grabbing mechanism (7) is provided on the top of the frame (1); the protective cover (11) is detachably connected to the frame (1); a square groove is provided on one side of the protective cover (11); an input conveyor belt (2) is provided on one side of the frame (1); one end of the input conveyor belt (2) passes through the square groove and extends into the protective cover (11); the input conveyor belt (2) is fixedly connected to the frame (1); and an output conveyor belt (2) is provided on a side of the frame (1) adjacent to the input conveyor belt (2). A conveyor belt (3), the output conveyor belt (3) is fixedly connected to the frame (1), the output end of the input conveyor belt (2) is provided with the automatic winding mechanism (4) for winding the nail group, the automatic winding mechanism (4) is fixedly connected to the frame (1), the inner end of the frame (1) away from the input conveyor belt (2) is provided with the disc-type rubber band sorting and feeding mechanism (6) for grabbing rubber bands, the output end of the disc-type rubber band sorting and feeding mechanism (6) is provided with the rubber band stretching and ejecting mechanism (5) for sleeve the rubber band on the roll nail, the rubber band stretching and ejecting mechanism (5) is fixedly connected to the frame (1), a roll nail grabbing mechanism (7) for grabbing the roll nail is provided between the automatic winding mechanism (4) and the rubber band stretching and ejecting mechanism (5), and the roll nail grabbing mechanism (7) is located above the output conveyor belt (3); The automatic winding mechanism (4) comprises a bracket (41), a reduction motor (42), a transmission assembly (43), a magnetic shaft push disk assembly (44) and a withdrawal cylinder (46); the withdrawal cylinder (46) is fixedly mounted on the inner side wall of the bracket (41); the reduction motor (42) is fixed to the output end of the withdrawal cylinder (46); the output end of the reduction motor (42) is transmission-connected to the transmission assembly (43); the transmission assembly (43) passes through the bracket (41) and is connected to the magnetic shaft push disk assembly (44); the magnetic shaft push disk assembly (44) is transmission-connected to the bracket (41) via the transmission assembly (43); The support (41) is an "L"-shaped plate, and the two sides of the withdrawal cylinder (46) are provided with a slide rail slider assembly (45), the slide rail slider assembly (45) is fixedly connected to the support (41), the reduction motor (42) is slidably connected to the support (41) through the slide rail slider assembly (45), the reduction motor (42) is electrically connected to an external power supply, and the withdrawal cylinder (46) is pneumatically connected to an external air source; The rubber band stretching and popping-out mechanism (5) comprises a mounting plate (51), a rotating motor (52), a mounting beam (53) and a multi-joint clamp (54), wherein the mounting plate (51) is fixed to the inner side of the protective cover (11), the rotating motor (52) is fixedly mounted on the back side of the protective cover (11), and the output end of the rotating motor (52) passes through the mounting plate (51) and is fixedly connected to the mounting beam (53), the multi-joint clamp (54) is two in number and is respectively fixedly mounted at two ends of the mounting beam (53), and the rotating motor (52) is electrically connected to an external power supply; The disc-type rubber band sorting and feeding mechanism (6) comprises a mounting frame (61), a material taking arm (62), a multi-station material feeding disc (63), a conical hopper (64), a material feeding disc driving assembly (65) and a material taking arm driving assembly (66), wherein the mounting frame (61) is fixedly mounted inside the protective cover (11), the multi-station material feeding disc (63) is rotatably mounted inside the mounting frame (61) on a side close to the rubber band stretching and ejecting mechanism (5), the material feeding disc driving assembly (65) is fixedly mounted on the mounting frame (61), and the material feeding disc driving assembly (65) is connected to the multi-station material feeding disc (63). The conical hopper (64) is located below the multi-station material supply tray (63), and the multi-station material supply tray (63) is fixedly connected to the mounting frame (61), the material picking arm (62) is located on the opposite side of the multi-station material supply tray (63), and the material picking arm (62) is fixedly connected to the mounting frame (61), and a material picking arm driving assembly (66) for driving the material picking arm (62) is provided on the outer side of the mounting frame (61) near one end of the material picking arm (62), and the material picking arm driving assembly (66) and the material supply tray driving assembly (65) are both electrically connected to an external power supply; The coil nail grabbing mechanism (7) comprises a mounting support (71), a rotating cylinder (72), a mounting transverse plate (73), a magnetic grabbing claw (74) and a flip cylinder (75); the mounting support (71) is fixedly mounted on the protective cover (11); the mounting transverse plate (73) is rotatably mounted on the mounting support (71); the rotating cylinder (72) is fixed to the other side of the mounting support (71); the mounting transverse plate (73) is fixedly connected to the output end of the mounting support (71); both ends of the mounting transverse plate (73) are connected to the magnetic grabbing claw (74); the middle part of the mounting transverse plate (73) is fixedly connected to a flip cylinder (75) for driving the magnetic grabbing claw (74); the rotating cylinder (72) and the flip cylinder (75) are electrically connected to an external power supply.

2. The automatic rubber band tying machine for coil nail production according to claim 1, characterized in that: A rotating shaft (521) is provided at the output end of the rotating motor (52), and the rotating shaft (521) is rotatably connected to the mounting plate (51), and one end of the rotating shaft (521) is fixedly connected to the mounting crossbeam (53), and the other end is drivingly connected to the output shaft of the rotating motor (52).

3. The automatic rubber band tying machine for coil nail production according to claim 1, characterized in that: The two multi-joint clamping claws (54) are centrally symmetrically distributed at the two ends of the mounting crossbeam (53).

4. The automatic rubber band tying machine for coil nail production according to claim 1, characterized in that: A control cabinet (13) is also provided on the protective cover (11), and the control cabinet (13) is electrically connected to an external power supply. A human-machine interactive display (12) is provided above the control cabinet (13), and the human-machine interactive display (12) is fixedly connected to the frame (1). The human-machine interactive display (12) is electrically connected to the automatic winding mechanism (4), the rubber band stretching and ejecting mechanism (5), and the disc-type rubber band sorting and feeding mechanism (6).

5. The automatic rubber band tying machine for coil nail production according to claim 1, characterized in that: The two magnetic grabbing claws (74) move alternately between the automatic winding mechanism (4) and the rubber band stretching and ejecting mechanism (5).

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