Large-diameter wire harness adhesive tape winding device and control method

Abstract

The invention discloses a large-diameter wire harness adhesive tape winding device and a control method, and belongs to the technical field of wire harness processing devices. A large-diameter wire harness adhesive tape winding device comprises an adhesive tape pulling mechanism, an adhesive tape winding mechanism, an adhesive tape pressing and cutting mechanism, an adhesive tape unwinding and feeding mechanism, an acetic acid paper stripping and winding mechanism, a stripping roller mechanism, an adhesive tape guide roller mechanism, an acetic acid paper guide roller mechanism and an adhesive tape clamping mechanism. The adhesive tape pulling mechanism, the adhesive tape winding mechanism and the adhesive tape clamping mechanism are in multi-mechanism linkage, full-automatic operation of large-diameter wire harness adhesive tape winding is achieved, manual winding is replaced, and the problems that in the prior art, the manual efficiency is low, and the cost is high are solved; the stepping motor and the synchronous belt are in transmission to achieve accurate up-down movement of the adhesive tape clamping mechanism, the winding stepping motor is matched to drive the adhesive tape winding mechanism to rotate, the single winding period is only 15-20 seconds, and the efficiency is improved by more than 5 times compared with manual work.

Description

Technical Field

[0001] The present invention relates to the technical field of wire harness processing devices, and particularly to a tape winding device and control method for large-diameter wire harnesses. Background Art

[0002] In the field of automotive wire harness production, the tape winding process for large-diameter wire harnesses (diameter ≥ 80 mm) faces some technical bottlenecks; existing dot winding machines can only achieve tape winding with a length of 18 - 70 mm. For large wire harnesses exceeding this length, manual winding is generally relied on, but there are still certain deficiencies in actual manual operation.

[0003] When manually winding large wire harnesses, it takes 5 - 8 minutes to wind a single wire harness, and the work efficiency may not be high; moreover, the manual winding tension is uneven, which easily leads to tape wrinkles, bubbles, or insufficient overlapping amount during winding, resulting in a relatively high unqualified rate and the need for further improvement in quality. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems raised in the above background art, and to propose a tape winding device and control method for large-diameter wire harnesses.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A tape winding device for large-diameter wire harnesses, comprising a tape pulling mechanism, a tape winding mechanism, a tape pressing and cutting mechanism, a tape unwinding and feeding mechanism, an acetate paper peeling and winding mechanism, a peeling roller mechanism, a tape guiding roller mechanism, an acetate paper guiding roller mechanism, and a tape clamping mechanism;

[0007] The tape pulling mechanism is used to drive the tape clamping mechanism to move up and down to pull the tape;

[0008] The tape winding mechanism is used to drive the tape to rotate and wind around the large-diameter wire harness;

[0009] The tape pressing and cutting mechanism is used to press the tape and cut the tape after winding is completed;

[0010] The tape unwinding and feeding mechanism is used to place the tape roll and convey the tape;

[0011] The acetate paper peeling and winding mechanism is used to peel the acetate paper outside the tape and wind it;

[0012] The peeling roller mechanism is used to separate the tape from the acetate paper;

[0013] The tape guiding roller mechanism and the acetate paper guiding roller mechanism are used to guide the movement of the tape and the acetate paper.

[0014] Preferably, the tape pulling mechanism includes a stepper motor, a driving gear, a driven gear, a synchronous pulley, a synchronous belt and a linear guide rail;

[0015] The stepper motor drives the driving gear to rotate, the driving gear drives the driven gear to rotate, and the driven gear drives the tape clamping mechanism to move up and down along the linear guide rail through the synchronous pulley and the synchronous belt.

[0016] Preferably, the tape clamping mechanism includes a tape clamping cylinder, a second connecting shaft, a first connecting shaft, a hinge pin and a tape clamping fixed splint;

[0017] The tape clamping cylinder drives the first connecting shaft to rotate around the hinge pin to realize the clamping and releasing of the tape clamping fixed splint.

[0018] Preferably, the tape winding mechanism includes a winding stepper motor, a reduction gear, a large gear and a guide wheel;

[0019] The winding stepper motor drives the large gear to rotate through the reduction gear, and the large gear drives the gear mounting seat equipped with the tape blocking mechanism to rotate along the guide wheel to realize tape winding.

[0020] Preferably, the tape pressing and cutting mechanism includes a pressing cylinder and a shearing guide rod cylinder;

[0021] The pressing cylinder drives the tape pressing plate to press or release the tape, and the shearing guide rod cylinder drives the cutter to cut the tape.

[0022] Preferably, the tape unwinding and feeding mechanism includes an unwinding shaft, a first fixing ring, a second spring and a photoelectric sensor; the tape roll is positioned on the unwinding shaft through the first fixing ring and the second spring.

[0023] Preferably, the acetate paper peeling and winding mechanism includes a closed-loop stepper motor, a groove-shaped photoelectric sensor and an induction sheet;

[0024] When the acetate paper is slack, the groove-shaped photoelectric sensor detects the induction sheet and triggers the closed-loop stepper motor to wind the acetate paper.

[0025] Further, the peeling roller mechanism, the tape guiding roller mechanism and the acetate paper guiding roller mechanism all include a second support shaft and a roller, and the roller is installed through the second support shaft for positioning and guiding the tape or the acetate paper.

[0026] A control method for a large-diameter wire harness tape winding device includes the following steps:

[0027] S1. Install the tape with acetate paper on the tape unwinding and feeding mechanism, separate the tape from the acetate paper through the peeling roller mechanism, and respectively guide them to the tape guiding roller mechanism and the acetate paper guiding roller mechanism;

[0028] S2. The tape clamping cylinder of the tape clamping mechanism extends to clamp the tape, and the stepping motor of the tape pulling mechanism drives it to move to the specified position, and adheres the tape to the large-diameter wire harness;

[0029] S3. The winding stepping motor of the tape winding mechanism drives the large gear to rotate clockwise, drives the tape to wind the lower half, and at the same time the pressing cylinder retracts to press the upper tape;

[0030] S4. After the cutting guide rod cylinder drives the cutter to cut the tape, the winding stepping motor drives the large gear to rotate counterclockwise to wind the upper half of the tape;

[0031] S5. The drive shaft of the acetate paper peeling and winding mechanism drops as the acetate paper relaxes. When the groove-type photoelectric sensor detects the induction piece, the closed-loop stepping motor starts to wind the acetate paper and stops when the acetate paper is taut;

[0032] S6. When the photoelectric sensor of the tape unwinding and feeding mechanism detects that there is no tape, manually replace the new tape.

[0033] Preferably, in the step S2, the winding length of the tape is adjusted by the pulse number of the stepping motor of the tape pulling mechanism; in the step S5, the drive shaft is linked with the induction piece through the second rotating shaft to realize the detection and winding control of the relaxed state of the acetate paper.

[0034] Compared with the prior art, the present invention provides a large-diameter wire harness tape winding device and a control method, which have the following beneficial effects:

[0035] 1. The present invention realizes the fully automatic operation of the large-diameter wire harness tape winding through the multi-mechanism linkage of the tape pulling mechanism, the tape winding mechanism, and the tape clamping mechanism, replaces manual winding, and solves the problems of low manual efficiency and high cost in the prior art; and the stepping motor and the synchronous belt drive realize the precise up and down movement of the tape clamping mechanism, and cooperate with the winding stepping motor to drive the tape winding mechanism to rotate. The single winding cycle only takes 15-20 seconds, and the efficiency is more than 5 times higher than that of manual work.

[0036] 2. The present invention uses the floating plate of the tape winding mechanism to cooperate with the silica gel buffer plate to make the winding tension stable at 5-8N, avoid wrinkles or breaks of the tape due to hard contact, and improve the winding qualification rate; the guide wheel rotates with the annular guide rail support mounting plate, and cooperates with the transmission of the large gear and the reduction gear to ensure the overlapping accuracy of the tape winding, and solves the problems of uneven winding tension and insufficient overlapping amount in manual winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic structural diagram of a large-diameter wire harness tape winding device proposed by the present invention;

[0038] Figure 2Schematic structure of the tape pulling mechanism in a large-diameter wire harness tape winding device proposed by the present invention Figure 1 ;

[0039] Figure 3 Schematic structure of the tape pulling mechanism in a large-diameter wire harness tape winding device proposed by the present invention Figure 2 ;

[0040] Figure 4 Schematic structure of the tape winding mechanism in a large-diameter wire harness tape winding device proposed by the present invention Figure 1 ;

[0041] Figure 5 Schematic structure of the tape winding mechanism in a large-diameter wire harness tape winding device proposed by the present invention Figure 2 ;

[0042] Figure 6 Schematic structure diagram of the tape pressing and cutting mechanism in a large-diameter wire harness tape winding device proposed by the present invention;

[0043] Figure 7 Cross-sectional view of the unwind feeding mechanism in a large-diameter wire harness tape winding device proposed by the present invention;

[0044] Figure 8 Schematic structure diagram of the unwind feeding mechanism in a large-diameter wire harness tape winding device proposed by the present invention;

[0045] Figure 9 Schematic structure diagram of the acetate paper peeling and winding mechanism in a large-diameter wire harness tape winding device proposed by the present invention;

[0046] Figure 10 Cross-sectional view of the acetate paper peeling and winding mechanism in a large-diameter wire harness tape winding device proposed by the present invention;

[0047] Figure 11 Schematic structure diagram of the tape guiding roller in a large-diameter wire harness tape winding device proposed by the present invention;

[0048] Figure 12 Schematic structure diagram of the tape clamping mechanism in a large-diameter wire harness tape winding device proposed by the present invention.

[0049] In the figure: 1. Tape pulling mechanism; 2. Tape winding mechanism; 3. Tape pressing and cutting mechanism; 4. Tape unwinding and feeding mechanism; 5. Acetate paper peeling and winding mechanism; 6. Peeling roller mechanism; 7. Tape guiding roller mechanism; 8. Acetate paper guiding roller mechanism; 9. Tape clamping mechanism; 11. First fixed sheet metal; 12. Second fixed sheet metal; 13. Tape pulling installation base plate; 14. Winding, feeding and receiving installation base plate; 15. Linear guide rail; 16. Bearing seat; 17. First rotating shaft; 18. Driven gear; 19. Synchronous belt pulley; 190. Motor fixed sheet metal; 191. Stepper motor; 192. Driving gear; 193. Synchronous belt; 194. Synchronous belt pressing plate; 195. Tape clamping connecting plate; 196. Connecting plate; 21. Winding installation base plate; 22. Winding stepper motor; 23. Reduction gear; 24. Guide wheel; 25. First support shaft; 26. Gear mounting seat; 27. Large gear; 28. Installation plate; 29. Guide plate; 290. Equal height bolt; 291. Floating plate; 292. Buffer plate; 293. First spring; 31. Fixed plate; 32. Shearing cylinder mounting plate; 33. Extrusion plate; 34. Pressing cylinder; 35. Linear bearing; 36. Guide shaft; 37. Tape pressing plate; 38. Guide jig; 39. Ball head screw; 390. Shearing guide rod cylinder; 391. Cutting knife; 41. Installation base plate; 42. Unwinding fixed plate; 43. Profile support; 44. Unwinding shaft; 45. First unwinding coil; 46. First fixing ring; 47. Unwinding locking block; 48. First fixing handle; 49. Tape installation block; 490. Second unwinding coil; 491. Snap ring; 492. Second spring; 493. Photoelectric sensor; 51. Profile; 52. Motor mounting plate; 53. Bearing mounting seat; 54. Winding rotating shaft; 55. Coupling; 56. Closed-loop stepper motor; 57. Column; 58. Second fixing ring; 59. Winding coil; 590. Winding locking block; 591. Second fixing handle; 592. Induction fixing block; 593. Second rotating shaft; 594. Induction piece; 595. Fixed clamp; 596. Driving shaft; 597. Groove type photoelectric sensor; 61. Second support shaft; 62. Roller; 63. Screw; 64. Third fixing ring; 91. Tape clamping installation plate; 92. Positioning pin; 93. Cylinder fixing plate; 94. Tape clamping cylinder; 95. Buffer block; 96. Double-ear type joint; 97. Fixed block; 98. Guide shaft support; 99. Second connecting shaft; 990. Guide pin; 991. Hinge pin; 992. First connecting shaft; 993. Tape clamping fixed splint. Detailed implementation manners

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0051] Example 1:

[0052] Referring to Figures 1-3 and Figure 5 , a large-diameter wire harness tape winding device includes a tape pulling mechanism 1, a tape winding mechanism 2, a tape pressing and cutting mechanism 3, a tape unwinding and feeding mechanism 4, an acetate paper peeling and winding mechanism 5, a peeling roller mechanism 6, a tape guiding roller mechanism 7, an acetate paper guiding roller mechanism 8, and a tape clamping mechanism 9;

[0053] The tape pulling mechanism 1 is used to drive the tape clamping mechanism 9 to move up and down to pull the tape;

[0054] The tape pulling mechanism 1 includes a stepping motor 191, a driving gear 192, a driven gear 18, a synchronous pulley 19, a synchronous belt 193, and a linear guide rail 15; the stepping motor 191 drives the driving gear 192 to rotate, the driving gear 192 drives the driven gear 18 to rotate, and the driven gear 18 drives the tape clamping mechanism 9 to move up and down along the linear guide rail 15 through the synchronous pulley 19 and the synchronous belt 193.

[0055] The tape clamping mechanism 9 includes a tape clamping cylinder 94, a second connecting shaft 99, a first connecting shaft 992, a hinge pin 991, and a tape clamping fixed clamping plate 993;

[0056] The tape clamping cylinder 94 drives the first connecting shaft 992 to rotate around the hinge pin 991 to realize the clamping and release of the tape clamping fixed clamping plate 993.

[0057] Referring to Figures 4-5 , the stepping motor 191 is vertically installed at the bottom of the tape pulling installation base plate 13 through a motor fixing sheet metal 190, and its output shaft is in interference fit with the driving gear 192, and the driving gear 192 is vertically meshed with the driven gear 18.

[0058] Referring to Figures 1-3 , it should be noted that one side of the first fixing sheet metal 11 is fixed to the top surface of the tape pulling installation base plate 13 by bolts, and the other side is connected to the external equipment frame by welding or bolts as the bottom support of the tape pulling mechanism 1.

[0059] It should also be noted that one side of the second fixing sheet metal 12 is fixed to the bottom surface of the winding, feeding and receiving installation base plate 14 by bolts, and the other side is connected to the external equipment frame to realize the horizontal separation support between the tape pulling mechanism 1 and the tape winding mechanism 2.

[0060] The tape pulling installation base plate 13 and the winding, feeding and receiving installation base plate 14 form a "T-shaped" support structure through the first fixing sheet metal 11 and the second fixing sheet metal 12 to ensure the movement stability in the vertical direction.

[0061] It should be noted that the unwinding fixing plate 42 is installed on the profile support 43, and the profile support 43 is fixedly installed on the winding feeding and receiving mounting base plate 14.

[0062] The driven gear 18 is fixedly connected to the bottom end of the first rotating shaft 17 through a key connection. The first rotating shaft 17 is horizontally installed on the tape pulling mounting base plate 13 through a bearing block 16, and its top end is connected to the synchronous belt 193 through a synchronous pulley 19.

[0063] Refer to Figure 2 、 Figure 3 As shown in FIGS.

[0064] The synchronous belt 193 is bolted to the tape clamping connecting plate 195 through a synchronous belt pressing plate 194, driving the tape clamping mechanism 9 to slide up and down along the linear guide 15, with a stroke range of 0 - 200 mm.

[0065] Refer to Figure 12 As shown in FIGS.

[0066] The guide shaft support 98 is a U-shaped bracket, which is fixedly installed on the top surface of the tape clamping mounting plate 91 through bolts. The second connecting shaft 99 is horizontally inserted into the bearing hole of the guide shaft support 98, and both ends are limited by retaining rings.

[0067] The fixing block 97 is installed above the tape clamping mounting plate 91, and the upper part of the fixing block 97 is connected to the guide shaft support 98.

[0068] The guide pin 990 is vertically fixed to the middle of the second connecting shaft 99, passing through the long strip-shaped guide groove of the first connecting shaft 992 to form a sliding fit, ensuring the lateral positioning accuracy when the first connecting shaft 992 rotates around the hinge pin 991.

[0069] The tape winding mechanism 2 is used to drive the tape to rotate and wind around a large-diameter wire harness. The tape winding mechanism 2 includes a winding stepper motor 22, a reduction gear 23, a large gear 27, and a guide wheel 24. The winding stepper motor 22 drives the large gear 27 to rotate through the reduction gear 23, and the large gear 27 drives the gear mounting seat 26 equipped with a tape blocking mechanism to rotate along the guide wheel 24 to realize tape winding.

[0070] The winding stepper motor 22 is horizontally installed on the winding mounting base plate 21 through a motor fixing sheet metal 190, and its output shaft is meshed with the driven gear 18 through a driving gear 192.

[0071] Reference Figure 3 and Figure 4 At both ends of the first support shaft 25, it is fixed to the annular guide rail bracket of the winding installation base plate 21 through bolts. The guide wheel 24 is sleeved on the middle part of the first support shaft 25 through a bearing, forming a circumferential support for the mounting plate 28. The guide wheels 24 are evenly distributed in terms of spacing to ensure the radial stability when the mounting plate rotates.

[0072] The guide plate 29 is a rectangular metal plate, which is fixed to the center position of the bottom surface of the mounting plate 28 through bolts. Four groups of through holes are opened on the plate body for installing the equal-height bolts 290.

[0073] The equal-height bolt 290 passes through the through hole of the guide plate 29, and the threaded end is matched with the threaded hole of the floating plate 291. The head is limited above the guide plate 29 to form an axial sliding guide.

[0074] The first spring 293 is sleeved on the outside of the equal-height bolt 290, and both ends respectively abut against the bottom surface of the guide plate 29 and the top surface of the floating plate 291 to provide an elastic buffer force.

[0075] The buffer plate 292 is pasted on the bottom surface of the floating plate 291 through industrial glue, and a grid-shaped anti-slip pattern is provided on the contact surface for flexible contact with the surface of the wire harness.

[0076] The driven gear 18 is connected to the reduction gear 23 through the first rotating shaft 17. The two reduction gears 23 are symmetrically distributed and jointly engage with the large gear 27; the large gear 27 is bolted to the mounting plate 28 through the gear mounting seat 26. The edge of the mounting plate 28 is supported on the annular guide rail of the winding installation base plate 21 through four groups of guide wheels 24; the mounting plate 28 is connected to the floating plate 291 through the guide plate 29, the equal-height bolt 290 and the first spring 293, and the buffer plate 292 is pasted on the surface of the floating plate 291 for elastic contact with the wire harness.

[0077] Reference Figure 4 and Figure 5 During specific implementation, the floating plate 291 and the mounting plate 28 are connected through four groups of equal-height bolts 290. The first spring 293 is sleeved on the outside of the bolts to provide an axial buffer stroke of 10 mm to avoid tape wrinkles or breaks caused by hard contact.

[0078] The tape pressing and cutting mechanism 3 is used to press the tape and cut the tape after winding is completed; the tape pressing and cutting mechanism 3 includes a pressing cylinder 34 and a shear guide rod cylinder 390; the pressing cylinder 34 drives the tape pressing plate 37 to press or release the tape, and the shear guide rod cylinder 390 drives the cutter 391 to cut the tape.

[0079] Reference Figure 6, The pressing cylinder 34 is horizontally mounted on the fixed plate 31 through the pressing plate 33. Its piston rod is connected to the pressing tape plate 37 through the guiding shaft 36, and the guiding shaft 36 is guided by the linear bearing 35.

[0080] The shearing guide rod cylinder 390 is vertically mounted on the shearing cylinder mounting plate 32. Its piston rod is connected to the cutting tool 391 through the L-shaped connecting rod. Five ball head screws 39 are evenly distributed on the surface of the guiding fixture 38 to prevent the tape from sticking.

[0081] Refer to Figure 6 , In specific implementation, the ball head screws 39 on the surface of the guiding fixture 38 are distributed in a matrix, making the tape in point contact with the fixture, reducing the contact area by 80%. With the silicon-based coating, the peel force is reduced to ≤0.5N.

[0082] Refer to Figure 7 、 Figure 8 , The tape unwinding and feeding mechanism 4 is used to place the tape roll and convey the tape; the tape unwinding and feeding mechanism 4 includes an unwinding shaft 44, a first fixing ring 46, a second spring 492 and a photoelectric sensor 493; the tape roll is positioned on the unwinding shaft 44 through the first fixing ring 46 and the second spring 492.

[0083] The acetate paper peeling and winding mechanism 5 is used to peel the acetate paper outside the tape and wind it; the acetate paper peeling and winding mechanism 5 includes a closed-loop stepping motor 56, a groove-shaped photoelectric sensor 597 and an induction piece 594;

[0084] When the acetate paper is loose, the groove-shaped photoelectric sensor 597 detects the induction piece 594 and triggers the closed-loop stepping motor 56 to wind the acetate paper.

[0085] Refer to Figure 7 、 Figure 8 , The first unwinding reel 45, the second unwinding reel 490, the snap ring 491

[0086] The first unwinding reel 45 is a circular metal disc, the inner diameter of which has an interference fit with the unwinding shaft 44 and transmits torque through key connection, and is used to support the left side of the tape roll.

[0087] The second unwinding reel 490 has the same structure as the first unwinding reel 45, is sleeved on the right side of the unwinding shaft 44, and provides an axial thrust through the second spring 492 to press against the right side of the tape roll.

[0088] The snap ring 491 is installed in the slot at the right end of the unwinding shaft 44 to limit the axial movement of the second unwinding reel 490 and cooperate with the second spring 492 to achieve gapless positioning of the tape roll.

[0089] The tape installation block 49 is a cylindrical metal block with a through hole in the middle for clearance fit with the unwinding shaft 44. The outer surface is processed with anti-slip patterns for sleeving a small tape roll and is clamped and positioned by the first fixing ring 46 and the second spring 492 on the left and right sides.

[0090] The closed-loop stepper motor 56 is connected to the winding shaft 54 through the coupling 55. The winding shaft 54 is horizontally installed through the bearing mounting seat 53, and its two ends are respectively fixed to the winding reel 59 by the second fixing ring 58 and the winding locking block 590.

[0091] The winding locking block 590 is fixed to the winding shaft 54 by the second fixing handle 591.

[0092] The induction fixing block 592 installs the induction sheet 594 through the second rotating shaft 593, and the other end is connected to the driving shaft 596 through the fixing clip 595. The contact end of the driving shaft 596 with the acetate paper is provided with an anti-slip rubber sleeve, and the groove type photoelectric sensor 597 detects a distance of 5 mm.

[0093] Refer to Figure 9 , in the specific implementation, the acetate paper peeling and winding mechanism 5 balances the gravity of the driving shaft 596 with the tension of the acetate paper. When the tension < 0.1 N, winding is triggered to ensure a stable peeling process and avoid breakage of the acetate paper.

[0094] Refer to Figure 9 , the fixing clip 595 is an elastic jaw structure, fixed to the bottom end of the second rotating shaft 593 by bolts. The inner hole of the jaw is in interference fit with the driving shaft 596, and a rubber anti-slip sleeve is sleeved in the middle of the driving shaft 596 for contacting the acetate paper and transmitting tension.

[0095] The second rotating shaft 593 is installed in the middle of the induction fixing block 592 through a deep groove ball bearing, with the induction sheet 594 fixed at the upper end and the driving shaft 596 connected through the fixing clip 595 at the lower end to form a linkage rotating structure. The column 57 is composed of 4 cylindrical metal rods, vertically fixed to the top surface of the profile 51, and the upper end is connected to the motor mounting plate 52 by bolts. The profile 51 is used to install the acetate paper peeling and winding mechanism 5 on the mounting base plate 41 to form a frame structure for supporting the closed-loop stepper motor 56 and the winding shaft 54 to ensure the stability of the winding process.

[0096] The peeling roller mechanism 6 is used to separate the tape from the acetate paper; the tape guiding roller mechanism 7 and the acetate paper guiding roller mechanism 8 are used to guide the movement of the tape and the acetate paper; the peeling roller mechanism 6, the tape guiding roller mechanism 7 and the acetate paper guiding roller mechanism 8 all include a second support shaft 61 and a roller 62, and the roller 62 is installed through the second support shaft 61 for positioning and guiding the tape or the acetate paper.

[0097] Refer to Figures 10-11, the screw 63 passes through the side hole of the roller 62 and is tightened into the threaded hole of the second support shaft 61 to achieve the circumferential fixation of the roller and prevent slipping.

[0098] The third fixing ring 64 is a circular metal sheet, sleeved on both sides of the roller 62, and fixed to the second support shaft 61 through a shaft shoulder and a screw 63, which is used to define the axial position of the roller and ensure the accuracy of the tape / acetic acid paper guiding path.

[0099] The buffer block 95 is pasted at the end of the piston rod of the tape clamping cylinder 94 and is used to absorb the impact load during the clamping instant.

[0100] The double-ear type joint 96 is connected to the piston rod of the tape clamping cylinder 94 through an internal thread, and the double-ear holes at the outer end are hinged to the first connecting shaft 992 to form a universal rotating joint, ensuring the compliance of the clamping action.

[0101] Refer to Figures 1-12 , in the specific implementation, the working steps are as follows:

[0102] S1. Tape installation and path guidance:

[0103] The staff installs the tape roll set containing acetic acid paper on the unwinding shaft 44, positions the left side through the first fixing ring 46, and the right side is tightened against the second unwinding reel 490 through the second spring 492 and the snap ring 491, and then locks the unwinding locking block 47 through the first fixing handle 48;

[0104] Manually pull the front end of the tape, and separate the acetic acid paper through the roller 62 of the peeling roller mechanism 6 in sequence. The acetic acid paper bypasses the acetic acid paper guiding roller mechanism 8 downward, then passes under the driving shaft 596 and is wound around the winding reel 59; The tape bypasses the tape guiding roller mechanism 7 upward, passes through the gap between the guiding jig 38 and the tape pressing plate 37, and extends 20 mm beyond the front end of the equipment.

[0105] Manually trigger the cutting guide rod cylinder 390 to extend, and the cutter 391 cuts the tape, and the initial preparation is completed.

[0106] S2. Tape clamping and positioning:

[0107] The stepping motor 191 is powered on, driving the driving gear 192 to rotate clockwise, driving the synchronous belt 193 to move upward through the driven gear 18 and the synchronous belt pulley 19, so that the tape clamping mechanism 9 moves to the highest point.

[0108] The tape clamping cylinder 94 extends, and pulls the first connecting shaft 992 to rotate counterclockwise around the hinge pin 991 through the double-ear type joint 96, driving the tape clamping fixed clamping plate 993 to clamp the tail of the tape, and the clamping force is set to 0.3 MPa by the cylinder pressure reducing valve.

[0109] The stepper motor 191 moves downward by 150 mm through pulse control to make the reserved length of the tape meet the winding requirement.

[0110] S3. Winding of the lower half of the tape:

[0111] Manually axially insert the large-diameter wire harness into the center of the tape winding mechanism 2, make the outer surface of the wire harness contact the buffer plate 292, push the wire harness backward by 5 mm, and the tape adheres to the surface of the wire harness under the elastic pressure of the buffer plate 292.

[0112] The winding stepper motor 22 is powered on and drives the mounting plate 28 to rotate clockwise at 50 r / min through the reduction gear 23 and the large gear 27, driving the tape to wind 360° around the lower half of the wire harness. The winding tension is maintained at 5 - 8 N by the first spring 293.

[0113] Synchronously, the pressing cylinder 34 retracts, driving the tape pressing plate 37 to move backward at a speed of 0.1 m / s, pressing the upper tape onto the surface of the wire harness to ensure tight winding.

[0114] S4. Tape cutting and winding of the upper half:

[0115] After the winding of the lower half is completed, the shearing guide rod cylinder 390 extends at a speed of 0.2 m / s, and the cutter 391 cuts the tape. The distance between the cutting edge and the surface of the wire harness is 2 mm to avoid damaging the wire harness.

[0116] The winding stepper motor 22 rotates in reverse, driving the mounting plate 28 to rotate counterclockwise, winding the upper end of the cut tape around the upper half of the wire harness, with a rotation angle of 180°, and the speed remains 50 r / min.

[0117] After the winding is completed, the tape clamping cylinder 94 retracts, releasing the tail end of the tape, and the stepper motor 191 drives the tape clamping mechanism 9 to return to the initial position.

[0118] S5. Automatic winding of the acetate paper:

[0119] When the acetate paper becomes loose due to peeling, the drive shaft 596 drops under gravity, driving the sensing piece 594 to rotate counterclockwise around the second rotating shaft 593 until it enters the detection area of the groove-type photoelectric sensor 597.

[0120] After receiving the sensor signal, the closed-loop stepper motor 56 winds the acetate paper at a speed of 10 r / min until the drive shaft 596 is lifted by the taut acetate paper out of the sensor detection area, and the motor stops operating.

[0121] S6. Trigger for tape replacement:

[0122] The photoelectric sensor 493 continuously detects the outer diameter of the tape roll. When the tape is used up, the photoelectric sensor 493 is triggered by no occlusion to give an audible and visual alarm. Manually loosen the first fixing handle 48, remove the old tape roll, and repeat the above process after installing a new roll.

[0123] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A large-diameter wire harness tape winding device, characterized in that, It includes a tape pulling mechanism (1), a tape winding mechanism (2), a tape pressing and cutting mechanism (3), a tape unwinding and feeding mechanism (4), an acetate paper peeling and winding mechanism (5), a peeling roller mechanism (6), a tape guiding roller mechanism (7), an acetate paper guiding roller mechanism (8), and a tape clamping mechanism (9); The tape pulling mechanism (1) is used to drive the tape clamping mechanism (9) to move up and down to pull the tape; The tape winding mechanism (2) is used to drive the tape to rotate and wind around a large-diameter wire harness; The tape pressing and cutting mechanism (3) is used to press the tape and cut the tape after winding is completed; The tape unwinding and feeding mechanism (4) is used to place the tape roll and convey the tape; The acetate paper peeling and winding mechanism (5) is used to peel the acetate paper outside the tape and wind it up; The peeling roller mechanism (6) is used to separate the tape from the acetate paper; The tape guiding roller mechanism (7) and the acetate paper guiding roller mechanism (8) are used to guide the movement of the tape and the acetate paper.

2. The large-diameter wire harness tape winding device according to claim 1, characterized in that, The tape pulling mechanism (1) includes a stepping motor (191), a driving gear (192), a driven gear (18), a synchronous pulley (19), a synchronous belt (193), and a linear guide rail (15); The stepping motor (191) drives the driving gear (192) to rotate, the driving gear (192) drives the driven gear (18) to rotate, and the driven gear (18) drives the tape clamping mechanism (9) to move up and down along the linear guide rail (15) through the synchronous pulley (19) and the synchronous belt (193).

3. The large-diameter wire harness tape winding device according to claim 1, characterized in that, The tape clamping mechanism (9) includes a tape clamping cylinder (94), a second connecting shaft (99), a first connecting shaft (992), a hinge pin (991), and a tape clamping fixed clamping plate (993); The tape clamping cylinder (94) drives the first connecting shaft (992) to rotate around the hinge pin (991) to realize the clamping and release of the tape clamping fixed clamping plate (993).

4. A large-diameter wire harness tape winding device according to claim 1, characterized in that, The tape winding mechanism (2) includes a winding stepping motor (22), a reduction gear (23), a large gear (27), and a guide wheel (24); The winding stepping motor (22) drives the large gear (27) to rotate through the reduction gear (23), and the large gear (27) drives the gear mounting seat (26) equipped with a tape blocking mechanism to rotate along the guide wheel (24) to realize tape winding.

5. A large-diameter wire harness tape winding device according to claim 1, characterized in that, The tape pressing and cutting mechanism (3) includes a pressing cylinder (34) and a shear guide rod cylinder (390); The pressing cylinder (34) drives the tape pressing plate (37) to press or release the tape, and the shear guide rod cylinder (390) drives the cutter (391) to cut the tape.

6. The large-diameter wire harness tape winding device according to claim 1, characterized in that, The tape unwinding and feeding mechanism (4) includes an unwinding shaft (44), a first fixing ring (46), a second spring (492), and a photoelectric sensor (493); The tape roll is positioned on the unwinding shaft (44) through the first fixing ring (46) and the second spring (492).

7. A large-diameter wire harness tape winding device according to claim 5, characterized in that The acetate paper peeling and winding mechanism (5) includes a closed-loop stepping motor (56), a groove-shaped photoelectric sensor (597), and an induction piece (594); When the acetate paper is loose, the groove type photoelectric sensor (597) detects the induction sheet (594), triggering the closed-loop stepper motor (56) to wind up the acetate paper.

8. A large-diameter wire harness tape winding device according to claim 7, characterized in that, The peeling roller mechanism (6), the tape guiding roller mechanism (7) and the acetate paper guiding roller mechanism (8) all include a second support shaft (61) and a roller (62). The roller (62) is installed through the second support shaft (61) and is used to position and guide the tape or acetate paper.

9. A control method for a large-diameter wire harness tape winding device according to any one of claims 1-8, characterized in that It includes the following steps: S1. Install the tape with acetate paper onto the tape unwinding and feeding mechanism (4), separate the tape from the acetate paper through the peeling roller mechanism (6), and guide them to the tape guiding roller mechanism (7) and the acetate paper guiding roller mechanism (8) respectively. S2. The tape clamping cylinder (94) of the tape clamping mechanism (9) extends to clamp the tape, and the stepper motor (191) of the tape pulling mechanism (1) drives it to move to the designated position to adhere the tape to the large-diameter wire harness. S3. The winding stepper motor (22) of the tape winding mechanism (2) drives the large gear (27) to rotate clockwise to drive the lower half of the tape to wind, and at the same time, the pressing cylinder (34) retracts to press the upper tape. S4. After the shearing guide rod cylinder (390) drives the cutter (391) to cut the tape, the winding stepper motor (22) drives the large gear (27) to rotate counterclockwise to wind the upper half of the tape. S5. The drive shaft (596) of the acetate paper peeling and winding mechanism (5) drops as the acetate paper loosens. When the groove type photoelectric sensor (597) detects the induction sheet (594), the closed-loop stepper motor (56) starts to wind up the acetate paper and stops when the acetate paper is taut. S6. When the photoelectric sensor (493) of the tape unwinding and feeding mechanism (4) detects that there is no tape, replace the new tape manually.

10. The control method of a large-diameter wire harness tape winding device according to claim 9, characterized in that, In step S2, the winding length of the tape is adjusted by the pulse number of the stepper motor (191) of the tape pulling mechanism (1); in step S5, the drive shaft (596) is linked with the induction sheet (594) through the second rotating shaft (593) to realize the detection of the loose state of the acetate paper and the winding control.

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