Automatic assembling machine for metal cable ties

Abstract

The invention discloses an automatic assembling machine for metal ribbons. According to the technical scheme, the device comprises a material belt conveying mechanism used for conveying continuous material belts; the material belt cutting and buckle stamping mechanism is used for cutting the material belt and stamping a buckle to form a belt strip; and the strip bending mechanism is arranged beside the material strip cutting and buckle stamping mechanism and comprises a rack, a first bending mechanism and a second bending mechanism, the first bending mechanism and the second bending mechanism are installed on the rack, and the first bending mechanism comprises a rotary bending rod which is vertically arranged. The device has the following advantages that cutting of a material belt, stamping of a belt buckle, bending of a belt and assembling of a binding belt head and the belt can be completed on one device at the same time, and the device has the advantages of being high in assembling efficiency, good in stability and the like.

Description

Technical Field

[0001] The invention belongs to the field of automation equipment, and in particular relates to an automatic metal cable tie assembly machine. Background Art

[0002] Cable ties are a type of strap used to tie things together, also known as cable ties, cable ties or lock ties. According to the material, cable ties can be divided into nylon cable ties and stainless steel cable ties. Among them, the structure of stainless steel cable ties, such as: Fig.11 As shown, it includes a strap 71 and a tie head 72 connected to one end of the strap 71. To improve the connection strength between the strap 71 and the tie head 72, a buckle 73 is usually stamped on one end of the strap 71, and the end is bent and connected to the tie head 72. The traditional assembly between the strap 71 and the tie head 72 is usually completed manually, and the assembly efficiency is relatively low. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an automatic assembly machine for metal cable ties.

[0004] To solve the above problems, the technical solution adopted by the present invention includes: A material belt conveying mechanism, used for conveying continuous material belts; The material strip cutting and buckle punching mechanism is used to cut the material strip and punch the buckle to form a strip; The strip bending mechanism is arranged beside the strip cutting and buckle punching mechanism, and comprises a frame and a first bending mechanism and a second bending mechanism mounted on the frame, wherein the first bending mechanism comprises a vertically arranged rotary bending rod, a positioning block arranged on one side of the rotary bending rod, and a first driving mechanism driving the rotary bending rod to lift and rotate, the rotary bending rod is provided with a gap for the strip to pass through, and the front end of the positioning block is provided with a positioning surface and a clearance groove adapted to the rotary bending rod; the second bending mechanism comprises a horizontally arranged stamping bending rod and a second driving mechanism driving the stamping bending rod to stamp in the direction of the positioning block; The cable tie head conveying mechanism comprises a vibrating plate and a material channel connected to the material outlet of the vibrating plate, wherein the lower end of the material channel is provided with an opening for the strap to pass through the cable tie head; The belt-pulling mechanism comprises a clamping jaw arranged beside the material channel for pulling the belt strip forward and a third driving mechanism for driving the clamping jaw to move.

[0005] The automatic assembly machine for metal cable ties is characterized in that: the first driving mechanism includes a first rotating shaft connected to the lower end of the rotary bending rod, a small gear arranged at the lower end of the first rotating shaft, a large gear meshing with the small gear, a second rotating shaft connected to the lower end of the large gear, a driving spindle and a first motor that drives the driving spindle to rotate, the first rotating shaft being movably installed on the slide rail of the frame through a first rotating shaft mounting seat, the second rotating shaft being fixed to the frame through a second rotating shaft mounting seat, a first linkage rod being provided on the first rotating shaft mounting seat, a rotatable second linkage rod being provided on the frame, the second linkage rod being connected to the first eccentric wheel at the bottom of the second rotating shaft through a first bearing rod, the driving spindle being provided with a first cam that can drive the first linkage rod to rise and a second cam that can drive the second linkage rod to rotate, and the first linkage rod and the second linkage rod being respectively provided with a first reset spring and a second reset spring that can drive them to reset.

[0006] The automatic assembly machine for metal cable ties is characterized in that: the material belt conveying mechanism includes a first feeding wheel, a second feeding wheel, a second motor for driving the first feeding wheel to rotate, and a first cylinder for driving the second feeding wheel to move toward the side of the first feeding wheel; the first feeding wheel is provided with an annular groove adapted to the material belt; the second feeding wheel is provided with a flange embedded in the annular groove; and mutually meshing synchronous rotating gears are provided between the first feeding wheel and the second feeding wheel.

[0007] The automatic assembly machine for metal cable ties is characterized in that the material strip cutting and buckle punching mechanism includes an upper template, a lower template and a fourth driving mechanism that drives the upper template to perform punching, an I-shaped cutting punch and a buckle punch are provided at the bottom of the upper template, and a cutting edge adapted to the I-shaped cutting punch and the buckle punch is provided on the lower template.

[0008] The automatic metal cable tie assembly machine is characterized in that it also includes a leveling mechanism arranged in front of the material belt conveying mechanism, and the leveling mechanism includes two rows of staggered leveling bearings.

[0009] The automatic assembly machine for metal cable ties is characterized in that it also includes a detection mechanism arranged next to the material channel, the detection mechanism includes a photoelectric sensor for detecting the strap and a micro switch for detecting the cable tie head, the lower end of the material channel is axially connected to a micro switch trigger block for triggering the micro switch and a third reset spring for driving the micro switch trigger block to reset, and the front end of the micro switch trigger block is blocked by the edge of the cable tie head.

[0010] The automatic metal cable tie assembly machine is characterized in that: the first linkage rod is provided with a first bearing shaft matched with the first cam, and the second linkage rod is provided with a second bearing shaft matched with the second cam.

[0011] The automatic metal cable tie assembly machine is characterized in that it also includes a guide mechanism, which includes a guide groove arranged between the material strip conveying mechanism and the material strip cutting and buckle punching mechanism and at least two guide holes arranged in the material strip cutting and buckle punching mechanism.

[0012] The automatic assembly machine for metal cable ties is characterized in that: the second driving mechanism includes a first slider and a third motor, the first slider is connected to the second eccentric wheel on the third motor through a second bearing rod, the stamping bending rod is installed on the first slider, the third driving mechanism includes a second slider and a second cylinder that drives the second slider to slide, and the clamp is installed on the second slider.

[0013] The automatic metal cable tie assembly machine is characterized in that: the fourth driving mechanism includes a third slider and a fourth motor, the third slider is connected to the third eccentric wheel on the fourth motor through a third bearing rod, and the upper template is installed on the third slider.

[0014] The advantages of the metal cable tie automatic assembly machine of the present invention are as follows: the cutting of the material strip, the punching of the strip buckle, the bending of the strip and the assembly of the cable tie head and the strip can be completed on one device at the same time, and it has the advantages of high assembly efficiency and good stability.

[0015] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the automatic assembly machine for metal cable ties of the present invention; Figure 2 It is a structural schematic diagram of the material belt conveying mechanism of the present invention; Figure 3 It is a structural schematic diagram of the material strip cutting and buckle punching mechanism of the present invention; Figure 4 It is a structural schematic diagram of the upper mold of the present invention; Figure 5 It is a structural schematic diagram of the lower mold of the present invention; Figure 6 It is a structural schematic diagram of the strip bending mechanism of the present invention; Figure 7 yes Figure 6 A partial enlarged view of Figure 8 It is a structural schematic diagram of the cable tie head transmission mechanism of the present invention; Fig. 9 It is a partial enlarged view of the cable tie head transmission mechanism of the present invention; Fig.10 It is a structural schematic diagram of the strapping mechanism of the present invention; Fig.11 It is a schematic diagram of the structure of a traditional metal cable tie. DETAILED DESCRIPTION

[0017] Reference Figure 1-Figure 10 As shown, the metal cable tie automatic assembly machine of the present invention comprises: a material strap conveying mechanism 1, a material strap cutting and buckle punching mechanism 2, a strap bending mechanism 3, a cable tie head conveying mechanism 4 and a strap pulling mechanism 5.

[0018] The material strip conveying mechanism 1 is used to convey a continuous material strip, and the rear end of the material strip is usually wound on a material strip roll. The material strip cutting and buckle punching mechanism 2 is used to cut the material strip and punch the buckle to form a strip of the required length. The strip bending mechanism 3 is arranged beside the material strip cutting and buckle punching mechanism 2, and includes a frame 6 and a first bending mechanism 7 and a second bending mechanism 8 installed on the frame 6. The first bending mechanism 7 includes a vertically arranged rotary bending rod 9, a positioning block 10 arranged on one side of the rotary bending rod 9, and a first driving mechanism 11 that drives the rotary bending rod 9 to rise and fall and rotate. The rotary bending rod 9 is provided with a gap 12 for the strip to pass through. The front end of the positioning block 10 is provided with a positioning surface 13 and a clearance groove 14 adapted to the rotary bending rod 9. The positioning surface 13 is used to position the front end of the strip to facilitate the rotary bending rod 9 to rotate and bend the rear end of the strip. The giving way groove 14 is used to give way to the rotary bending rod 9 so that the strap can fit the positioning surface 13 for better bending. The second bending mechanism 8 includes a horizontally arranged stamping bending rod 15 and a second driving mechanism 16 that drives the stamping bending rod 15 to punch in the direction of the positioning block 10. Since the strap is usually made of stainless steel and has good elasticity, it cannot be completely bent into place by the rotary bending rod 9, so that better bending is completed by further stamping of the stamping bending rod 15. The cable tie head conveying mechanism 4 includes a vibrating plate 17 and a material channel 18 connected to the discharge port of the vibrating plate 17, and the lower end of the material channel 18 is provided with an opening 19 for the strap to pass through the cable tie head. The cable tie head is conveyed to the opening 19 at the lower end of the material channel 18 by the vibrating plate 17. The strap pulling mechanism 5 includes a clamping jaw 20 arranged beside the material channel 18 for pulling the strap forward and a third driving mechanism 21 for driving the clamping jaw 20 to move. Assembly process: First, the material strips sent by the material strip conveying mechanism are cut and the buckles are punched through the material strip cutting and buckle punching mechanism, and then the rear end of the strips is bent through the strip bending mechanism, and finally the strips are pulled forward through the pulling mechanism so that the buckles of the strips are inserted into the cable tie head. Note: When the strips are at the material strip cutting and buckle punching mechanism station, their front ends have been inserted into the cable tie head and extended out of the material channel, and can be clamped by the clamping claws.

[0019] Preferably, the first driving mechanism 11 includes a first rotating shaft 22 connected to the lower end of the rotary bending rod 9, a small gear 23 provided at the lower end of the first rotating shaft 22, a large gear 24 meshing with the small gear 23, a second rotating shaft 25 connected to the lower end of the large gear 24, a driving spindle 26, and a first motor 27 that drives the driving spindle 26 to rotate. The first motor 27 and the driving spindle are usually connected by a sprocket. The first rotating shaft 22 is escalably mounted on the slide rail 29 of the frame 6 through a first rotating shaft mounting seat 28, and the second rotating shaft 25 is fixed to the frame 6 through a second rotating shaft mounting seat 30. A first linkage rod 31 is provided on the first rotating shaft mounting seat 28, and a rotatable second linkage rod 32 is provided on the frame 6. The second linkage rod 32 is connected to a first eccentric wheel 34 at the bottom of the second rotating shaft 25 through a first bearing rod 33. The driving spindle 26 is provided with a first cam 35 capable of driving the first linkage rod 31 to rise and a second cam 36 capable of driving the second linkage rod 32 to rotate. The first linkage rod 31 and the second linkage rod 32 are respectively provided with a first return spring 37 and a second return spring 38 capable of driving them to return. When the strip is delivered to the station, the first motor 27 drives the driving spindle 26 to rotate, so that the first cam 35 first contacts the first linkage rod 31, and drives the first shaft mounting seat 28 and the rotary bending rod 9 to rise synchronously, so that the strip enters the gap 12, and then the second cam 36 contacts the second linkage rod 32, and drives the rotary bending rod 9 to rotate, so as to realize the bending of the strip; when the driving spindle 26 continues to rotate, so that the first cam 35 and the second cam 36 leave the first linkage rod 31 and the second linkage rod 32 respectively, the first linkage rod 31 and the second linkage rod are respectively reset under the action of the first return spring 37 and the second return spring 38. Then the lifting and rotating operation of the rotary bending rod 9 is realized.

[0020] Preferably, the material belt conveying mechanism 1 includes a first feeding wheel 39, a second feeding wheel 40, a second motor 41 for driving the first feeding wheel 39 to rotate, and a first cylinder 43 for driving the second feeding wheel 40 to move toward the first feeding wheel 39. The first feeding wheel 39 is provided with an annular groove 42 adapted to the material belt, the second feeding wheel 40 is provided with a flange 69 embedded in the annular groove 42, and mutually engaged synchronous rotating gears 70 are provided between the first feeding wheel 39 and the second feeding wheel 40. When the material belt passes between the first feeding wheel 39 and the second feeding wheel 40, the second feeding wheel 40 is moved toward the first feeding wheel 39 by the first cylinder 43 to apply pressure to the material belt, and finally the first feeding wheel 39 and the second feeding wheel 40 are driven to rotate synchronously by the second motor 41 to realize the forward transmission of the material belt.

[0021] Preferably, the strip cutting and buckle punching mechanism 2 comprises an upper template 44, a lower template 45 and a fourth driving mechanism 46 for driving the upper template 44 to perform punching. An I-shaped cutting punch 47 and a buckle punch 48 are provided at the bottom of the upper template 44. The I-shaped cutting punch 47 is used to punch the head and tail of the strip, so that the head end of the strip forms a conical surface and the tail forms a flat surface. The lower template 45 is provided with a knife edge 49 adapted to the I-shaped cutting punch 47 and the buckle punch 48. Through the above structure, the strip can be punched once.

[0022] Preferably, a leveling mechanism is further included in front of the material belt conveying mechanism 1, and the leveling mechanism includes two rows of staggered leveling bearings 50. The leveling bearings 50 are ideally 5-10 on each side to achieve leveling of the material belt.

[0023] Preferably, it also includes a detection mechanism arranged beside the material channel 18, the detection mechanism includes a photoelectric sensor 51 for detecting the strap and a micro switch 52 for detecting the tie head, the lower end of the material channel 18 is connected to a micro switch trigger block 53 for triggering the micro switch 52 and a third reset spring 54 for driving the micro switch trigger block 53 to reset, and the front end of the micro switch trigger block 53 is blocked at the edge of the tie head. When the strap pulling mechanism 5 pulls the strap forward, the tie head will drive the micro switch trigger block 53 to rotate, thereby triggering the micro switch 52, and then effectively detecting whether the strap has been equipped with the tie head. The first reset spring 37, the second reset spring 38, and the third reset spring 54 all include compression springs, tension springs, spring leaves, etc.

[0024] Preferably, the first linkage rod 31 is provided with a first bearing shaft 55 matched with the first cam 35, and the second linkage rod 32 is provided with a second bearing shaft 56 matched with the second cam 36. The first bearing shaft 55 and the second bearing shaft 56 are respectively in contact with the first cam 35 and the second cam 36 to improve the smoothness of sliding between the two.

[0025] Preferably, a guide mechanism is further included, and the guide mechanism includes a guide groove 57 provided between the material strip conveying mechanism 1 and the material strip cutting and buckle punching mechanism 2 and at least two guide holes 58 provided in the material strip cutting and buckle punching mechanism 2. The material strip passes between the guide groove 57 and the guide hole 58, so that the material strip can more accurately enter the material strip cutting and buckle punching mechanism 2 for punching, and can also more accurately penetrate into the gap 12 of the rotary bending rod 9 and the cable tie head.

[0026] Preferably, the second driving mechanism 16 includes a first slider 59 and a third motor 60, the first slider 59 is connected to the second eccentric wheel 62 on the third motor 60 through a second bearing rod 61, and the stamping bending rod 15 is installed on the first slider 59. The third driving mechanism 21 includes a second slider 63 and a second cylinder 64 for driving the second slider 63 to slide, and the clamping jaw 20 is installed on the second slider 63. The fourth driving mechanism 46 includes a third slider 65 and a fourth motor 66, the third slider 65 is connected to the third eccentric wheel 68 on the fourth motor 66 through a third bearing rod 67, and the upper template 44 is installed on the third slider 65. The stamping bending rod 15, the clamping jaw 20, and the upper template 44 are driven respectively by the second driving mechanism 16, the third driving mechanism 21, and the fourth driving mechanism 46. These driving mechanisms have the advantages of simple structure, stability and reliability.

[0027] As mentioned above, the present invention is not limited in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the structures and technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A metal cable tie automatic assembly machine, characterized in that: include: A material belt conveying mechanism (1), used for conveying a continuous material belt; The material strip cutting and buckle punching mechanism (2) is used to cut the material strip and punch the buckle to form a strip; A strip bending mechanism (3) is arranged beside the strip cutting and buckle punching mechanism (2), comprising a frame (6) and a first bending mechanism (7) and a second bending mechanism (8) mounted on the frame (6), wherein the first bending mechanism (7) comprises a vertically arranged rotary bending rod (9), a positioning block (10) arranged on one side of the rotary bending rod (9), and a first driving mechanism (11) driving the rotary bending rod (9) to rise and fall and rotate, the rotary bending rod (9) is provided with a gap (12) for the strip to pass through, the front end of the positioning block (10) is provided with a positioning surface (13) and a clearance groove (14) adapted to the rotary bending rod (9); the second bending mechanism (8) comprises a horizontally arranged punching bending rod (15) and a second driving mechanism (16) driving the punching bending rod (15) to punch in the direction of the positioning block (10); The cable tie head conveying mechanism (4) comprises a vibrating plate (17) and a material channel (18) connected to the material outlet of the vibrating plate (17), wherein the lower end of the material channel (18) is provided with an opening (19) for the strap to pass through the cable tie head; The belt-pulling mechanism (5) comprises a clamping jaw (20) disposed beside the material channel (18) and used to pull the belt strip forward, and a third driving mechanism (21) for driving the clamping jaw (20) to move.

2. The metal cable tie automatic assembly machine according to claim 1, characterized in that: The first driving mechanism (11) comprises a first rotating shaft (22) connected to the lower end of the rotary bending rod (9), a small gear (23) provided at the lower end of the first rotating shaft (22), a large gear (24) meshing with the small gear (23), a second rotating shaft (25) connected to the lower end of the large gear (24), a driving spindle (26) and a first motor (27) for driving the driving spindle (26) to rotate, the first rotating shaft (22) being movably mounted on a slide rail (29) of the frame (6) via a first rotating shaft mounting seat (28), and the second rotating shaft (25) being fixed to the frame (6) via a second rotating shaft mounting seat (30). A first linkage rod (31) is provided on the first rotating shaft mounting seat (28), a rotatable second linkage rod (32) is provided on the frame (6), the second linkage rod (32) is connected to a first eccentric wheel (34) at the bottom of the second rotating shaft (25) via a first bearing rod (33), a first cam (35) capable of driving the first linkage rod (31) to rise and a second cam (36) capable of driving the second linkage rod (32) to rotate are provided on the driving main shaft (26), and a first return spring (37) and a second return spring (38) capable of driving the first linkage rod (31) and the second linkage rod (32) to return are respectively provided on the first linkage rod (31) and the second linkage rod (32).

3. The metal cable tie automatic assembly machine according to claim 1, characterized in that: The material belt conveying mechanism (1) comprises a first feeding wheel (39), a second feeding wheel (40), a second motor (41) for driving the first feeding wheel (39) to rotate, and a first cylinder (43) for driving the second feeding wheel (40) to move toward the side of the first feeding wheel (39); the first feeding wheel (39) is provided with an annular groove (42) adapted to the material belt; the second feeding wheel (40) is provided with a flange (69) embedded in the annular groove (42); and mutually meshing synchronous rotating gears (70) are provided between the first feeding wheel (39) and the second feeding wheel (40).

4. The metal cable tie automatic assembly machine according to claim 1, characterized in that: The strip cutting and buckle punching mechanism (2) comprises an upper template (44), a lower template (45) and a fourth driving mechanism (46) for driving the upper template (44) to perform punching, the upper template (44) having an I-shaped cutting punch (47) and a buckle punch (48) at the bottom, and the lower template (45) having a knife edge (49) adapted to the I-shaped cutting punch (47) and the buckle punch (48).

5. The metal cable tie automatic assembly machine according to claim 1, characterized in that: It also includes a leveling mechanism arranged in front of the material belt conveying mechanism (1), and the leveling mechanism includes two rows of staggered leveling bearings (50).

6. The metal cable tie automatic assembly machine according to claim 1, characterized in that: The invention also comprises a detection mechanism arranged beside the material channel (18), the detection mechanism comprising a photoelectric sensor (51) for detecting the strap and a micro switch (52) for detecting the cable tie head, the lower end of the material channel (18) is axially connected to a micro switch trigger block (53) for triggering the micro switch (52) and a third reset spring (54) for driving the micro switch trigger block (53) to reset, and the front end of the micro switch trigger block (53) is blocked at the edge of the cable tie head.

7. The metal cable tie automatic assembly machine according to claim 2, characterized in that: The first linkage rod (31) is provided with a first bearing shaft (55) that cooperates with the first cam (35), and the second linkage rod (32) is provided with a second bearing shaft (56) that cooperates with the second cam (36).

8. The metal cable tie automatic assembly machine according to claim 1, characterized in that: It also includes a guide mechanism, the guide mechanism including a guide groove (57) arranged between the material strip conveying mechanism (1) and the material strip cutting and buckle punching mechanism (2) and at least two guide holes (58) arranged in the material strip cutting and buckle punching mechanism (2).

9. The metal cable tie automatic assembly machine according to claim 1, characterized in that: The second driving mechanism (16) comprises a first slider (59) and a third motor (60); the first slider (59) is connected to a second eccentric wheel (62) on the third motor (60) via a second bearing rod (61); the stamping bending rod (15) is mounted on the first slider (59); the third driving mechanism (21) comprises a second slider (63) and a second cylinder (64) for driving the second slider (63) to slide; and the clamp (20) is mounted on the second slider (63).

10. The metal cable tie automatic assembly machine according to claim 4, characterized in that: The fourth driving mechanism (46) comprises a third slider (65) and a fourth motor (66); the third slider (65) is connected to a third eccentric wheel (68) on the fourth motor (66) via a third bearing rod (67); and the upper template (44) is mounted on the third slider (65).

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