Crotch cutting device of crotch sewing machine

Abstract

The utility model discloses a crotch cutting device of a crotch sewing machine, which comprises an annular frame, a motor I is arranged at the bottom of the annular frame, an output shaft of the motor I is connected with a rotating shaft, the rotating shaft is connected with one end of an angle seat of a cutting mechanism, the other end of the angle seat is supported by a supporting rod, the top of the annular frame is connected with an annular rail, and a gear ring is rotatably arranged on the annular rail. Inner teeth of the gear ring are engaged with a gear, the gear sleeves an output shaft of the motor II, and a plurality of crotch supporting mechanisms are uniformly distributed on the upper end surface of the gear ring; the device is simple in structure, reasonable in design and novel and unique in thought, the second motor drives the gear ring to rotate, the crotch supporting mechanism installed on the gear ring also rotates along with the gear ring, meanwhile, the first motor is a servo motor to drive the shearing mechanism to rotate in a matched mode, and a third motor in the shearing mechanism drives scissors to shear the crotch of the clothes stretched and supported on the U-shaped elastic support under the action of a connecting rod mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of clothing processing, in particular to a crotch cutting device of a crotch sewing machine. Background Art

[0002] In the clothing industry, pantyhose are now produced and processed to match some clothes such as cheongsams and skirts to maintain the dressing of fashionable women.

[0003] Conventionally, when manufacturing sock pants and pantyhose, it is necessary to manually cut the crotches of two long stockings and then sew and splice them on a sewing machine. In this way, due to multiple people participating in the crotch cutting operation, the crotch cutting lengths may not be uniform, and it is difficult to ensure the consistency of the products. At the same time, multiple processes are time-consuming and laborious. The utility model patent proposes an automatic crotch cutting device for a crotch sewing machine. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a crotch cutting device for a crotch sewing machine aiming at the existing problems.

[0005] The utility model is realized through the following technical solutions: A crotch cutting device of a crotch sewing machine includes an annular frame. A motor one is installed at the bottom of the annular frame. The output shaft of the motor one is connected to a rotating shaft, and the rotating shaft is connected to one end of a corner seat of a shearing mechanism. The other end of the corner seat is supported by a strut. The top of the annular frame is connected to an annular rail. An internal circumferential rotation of a toothed ring is arranged on the annular rail. The internal teeth of the toothed ring are meshed with a gear. The gear is sleeved on the output shaft of a motor two. A plurality of crotch supporting mechanisms are evenly arranged on the upper end surface of the toothed ring.

[0006] As a further improvement of the above solution, the shearing mechanism includes a corner seat. A slide rail is arranged on the corner seat. A slide block is arranged in a matching manner on the slide rail. A scissors seat is connected to the slide block. The scissors seat is connected to the long handle end of the scissors. The short handle end of the scissors is movably connected to one end of a steering handle, and the other end of the steering handle is movably connected to one end of a main handle. The other end of the main handle is connected to an end shaft. The end shaft is connected to the side of the end face of an eccentric wheel. The eccentric wheel is connected to the output shaft of a motor three. The motor three is installed on the outer side surface of the scissors seat. A fixed shaft is also connected to the outer side surface of the scissors seat. One end of the fixed shaft far away from the scissors seat is connected to a roller. The roller is arranged in a guide groove. The guide groove is arranged on the inner side surface of the corner seat. When the motor three works, it drives the eccentric wheel to rotate. The eccentric wheel drives the main handle to swing up and down through the end shaft, and then drives the short handle of the scissors to swing up and down through the steering handle, so as to cut the crotch of the pantyhose with the blade edge of the scissors. In addition, the scissors feed and cut through the slide block on the slide rail and then return to the original position. At the same time, the scissors seat also displaces through the connected roller in the guide groove to ensure the smoothness of the feed and return of the scissors.

[0007] As a further improvement of the above scheme, the crotch-stretching mechanism includes a fixed seat, on which two V-shaped main arms are rotatably and symmetrically arranged, the two main arms rotate around the fixed seat as the axis, a spring is arranged between the main arms, the spring is fixed between the two main arms through two hanging pillars, a seat body is arranged at the other end of the main arm, a U-shaped elastic strut is arranged in the groove of the seat body, and a support arm is arranged on the U-shaped elastic strut, and before cutting the crotch, the pantyhose is first stretched by the U-shaped elastic strut, and the U-shaped elastic struts arranged upper and lower are used to stretch the pantyhose so that there is enough space inside the pantyhose to ensure that the scissors can be inserted, and at the same time, the strength of the U-shaped elastic strut is strengthened by the support arm.

[0008] As a further improvement to the above scheme, the rod end of the U-shaped elastic strut is rotated and arranged in the groove at upper and lower intervals, and the rod end of the U-shaped elastic strut is supported by a pad. Multiple U-shaped elastic struts are arranged at intervals to ensure that the stretched pantyhose has sufficient thickness, so that the cutting part of the scissors can smoothly extend into the pantyhose to cut the crotch.

[0009] As a further improvement to the above scheme, one end of the support arm is rotatably connected to the groove, and the other end of the support arm is fitted with a rod of a U-shaped elastic support. The strength of the U-shaped elastic support is strengthened by the support arm to ensure that the U-shaped elastic support can be fully stretched during the process of stretching the pantyhose, thereby avoiding deformation and bending of the U-shaped elastic support.

[0010] As a further improvement to the above scheme, a cover plate is arranged in the annular rail, the cover plate is mounted on the output shaft of motor one and covers the top of motor one, an annular groove is arranged on the cover plate, a support rod passes through the annular groove, a bull's eye shaft is arranged at the lower end of the support rod, and an arc track matching the rotation trajectory of the bull's eye shaft is arranged below the bull's eye shaft, and the arc track is arranged in the annular frame.

[0011] Compared with the prior art, the utility model has the following advantages: simple structure, reasonable design, novel and unique idea, by driving the gear ring to rotate through motor 2, the crotch support mechanism installed on the gear ring also rotates, and at the same time, motor 1 is a servo motor driving the shearing mechanism to match and rotate, and motor 3 in the shearing mechanism drives the scissors to shear the crotch of the clothes stretched on the U-shaped elastic support under the action of the connecting rod mechanism. After cutting the crotch of the clothes, the scissors rotate and reset under the drive of motor 1, and mechanical processing replaces manual operation, with high degree of automation, high processing speed and high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 This is a schematic diagram of the structure in which the shearing mechanism and the crotch-supporting mechanism are installed on the annular frame.

[0014] Figure 3 It is a structural schematic diagram of the crotch support mechanism.

[0015] Figure 4 Schematic diagram of the installation structure of the shearing mechanism.

[0016] The markings in the accompanying drawings are as follows: annular frame 1, annular rail 2, gear ring 3, motor 2 4, gear 5, crotch support mechanism 6, shearing mechanism 7, motor 1 8, rotating shaft 9, arc rail 10, cover plate 11, annular groove 12, support rod 13, bull's eye shaft 14;

[0017] Fixed seat 61, main arm 62, seat body 63, notch 64, U-shaped elastic support 65, support arm 66, hanging column 67, spring 68, cushion block 69;

[0018] Slide rail 71, slider 72, scissors seat 73, scissors long handle end 74, scissors short handle end 75, steering handle 76, main handle 77, angle seat 78, motor three 79, eccentric wheel 710, guide groove 711, fixed shaft 712, roller 713. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] like Figures 1 to 4 As shown in the figure, a crotch cutting device of a crotch sewing machine includes an annular frame 1, a motor 8 is installed at the bottom of the annular frame 1, the output shaft of the motor 8 is connected to the rotating shaft 9, the rotating shaft 9 is connected to one end of the angle seat 78 of the shearing mechanism 7, and the other end of the angle seat 78 is supported by a support rod 13, the top of the annular frame 1 is connected to a ring rail 2, a gear ring 3 is arranged on the inner circular rotation of the ring rail 2, the internal teeth of the gear ring 3 mesh with the gear 5, the gear 5 is sleeved on the output shaft of the motor 2 4, and a plurality of crotch supporting mechanisms 6 are evenly distributed on the upper end surface of the gear ring 3.

[0021] As a further improvement to the above scheme, the crotch-stretching mechanism 6 includes a fixed seat 61, on which two V-shaped main arms 62 are rotatably and symmetrically arranged. The two main arms 62 rotate around the fixed seat 61, and a spring 68 is arranged between the main arms 62. The spring 68 is fixed between the two main arms 62 by two hanging pillars 67. A seat body 63 is arranged at the other end of the main arm 62, and a U-shaped elastic strut 65 is arranged in the groove 64 of the seat body 63. A support arm 66 is arranged on the U-shaped elastic strut 65. Before cutting the crotch, the pantyhose is first stretched by the U-shaped elastic strut 65, and the U-shaped elastic strut 65 arranged above and below is used to stretch the pantyhose so that there is enough space inside the pantyhose to ensure that the scissors are inserted, and at the same time, the strength of the U-shaped elastic strut 65 is strengthened by the support arm 66.

[0022] As a further improvement to the above solution, the shearing mechanism 7 includes an angle seat 78. A slide rail 71 is arranged on the angle seat 78. A slider 72 is arranged in a matching manner on the slide rail 71. A scissor seat 73 is connected to the slider 72. The scissor seat 73 is connected to the long handle end 74 of the scissors. One end of the short handle end 75 of the scissors is movably connected to one end of a steering handle 76, and the other end of the steering handle 76 is movably connected to one end of a main handle 77. The other end of the main handle 77 is connected to an end shaft, and the end shaft is connected to the side of the end face of an eccentric wheel 710. The eccentric wheel 710 is connected to the output shaft of a motor three 79. The motor three 79 is installed on the outer side face of the scissor seat 73. A fixed shaft 712 is also connected to the outer side face of the scissor seat 73. One end of the fixed shaft 712 far from the scissor seat 73 is connected to a roller 713. The roller 713 is arranged in a guide groove 711. The guide groove 711 is arranged on the inner side face of the angle seat 78. When the motor three 79 works, it drives the eccentric wheel 710 to rotate. The eccentric wheel 710 drives the main handle 77 to swing up and down through the end shaft, and then drives the short handle of the scissors to swing up and down through the steering handle 76, so as to cut the crotch of the pantyhose with the blade of the scissors. In addition, the scissors feed and cut through the slider 72 on the slide rail 71, and then return to the original position. At the same time, the scissor seat 73 also displaces through the connected roller 713 in the guide groove 711 to ensure the smoothness of the feed and return of the scissors.

[0023] As a further improvement to the above solution, the rod ends of the U-shaped elastic supports 65 are rotatably arranged at intervals up and down in the notch 64, and the rod ends of the U-shaped elastic supports 65 are supported by cushion blocks 69. By arranging a plurality of U-shaped elastic supports 65 at intervals, it is ensured that the pantyhose in the opened state has sufficient thickness dimensions, so that the shearing part of the scissors can smoothly extend into the pantyhose for crotch shearing.

[0024] As a further improvement to the above solution, one end of the support arm 66 is rotatably connected in the notch 64, and the rod part of the U-shaped elastic support 65 is sleeved on the other end of the support arm 66. The strength of the U-shaped elastic support 65 is strengthened through the support arm 66 to ensure that the U-shaped elastic support 65 can be fully stretched during the process of stretching the pantyhose, and to avoid the U-shaped elastic support 65 from deforming and bending.

[0025] As a further improvement to the above solution, a cover plate 11 is arranged in the ring rail 2. The cover plate 11 is sleeved on the output shaft of a motor one 8 and covers the motor one 8. An annular groove 12 is arranged on the cover plate 11. A support rod 13 penetrates through the annular groove 12. A bull's-eye shaft 14 is arranged at the lower end of the support rod 13. An arc-shaped rail 10 matching the rotation track of the bull's-eye shaft 14 is arranged below the bull's-eye shaft 14. The arc-shaped rail 10 is arranged in the annular frame 1.

[0026] Working principle of the crotch cutting device of a crotch sewing machine: First, put the pantyhose on the U-shaped elastic support 65. The motor two 4 drives the gear ring 3 to rotate through the meshing of the gear 5 and the gear ring 3. The precession drives the crotch support mechanism 6 on the gear ring 3 to rotate. When the pantyhose with the crotch opened rotates to the scissors, the motor three 79 drives the scissors to open and close for the cutting operation. The scissors feed and displace through the slider 72 on the slide rail 71, and the scissors perform the cutting operation on the pantyhose. During the cutting process, the scissors also rotate with the gear ring 3. After the cutting is completed, the scissors retract the blade through the slider 72. At the same time, the crotch cutting mechanism is reset under the drive of the servo motor one 8, waiting for the next crotch support mechanism 6 to approach.

[0027] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crotch cutting device for a crotch sewing machine, comprising an annular frame, a motor is installed at the bottom of the annular frame, characterized in that: The output shaft of motor one is connected to the rotating shaft, the rotating shaft is connected to one end of the angle seat of the shearing mechanism, the other end of the angle seat is supported by a support rod, the top of the annular frame is connected to the ring rail, the inner circular rotation of the ring rail is provided with a gear ring, the inner teeth of the gear ring mesh with the gear, the gear is sleeved on the output shaft of motor two, and the upper end surface of the gear ring is evenly provided with a plurality of support mechanisms.

2. A crotch cutting device for a crotch sewing machine according to claim 1, characterized in that: The shearing mechanism includes an angle seat, a slide rail is arranged on the angle seat, a slider is matched on the slide rail, a scissors seat is connected to the slider, the scissors seat is connected to the long handle end of the scissors, the short handle end of the scissors is movably connected to one end of the steering handle, the other end of which is movably connected to one end of the main handle, the other end of the main handle is connected to the end shaft, the end shaft is connected to the side of the end face of the eccentric wheel, the eccentric wheel is connected to the output shaft of motor three, motor three is installed on the outer side surface of the scissors seat, and a fixed shaft is also connected to the outer side surface of the scissors seat, and the end of the fixed shaft away from the scissors seat is connected to a roller, the roller is arranged in a guide groove, and the guide groove is arranged on the inner side surface of the angle seat.

3. The crotch cutting device of the crotch sewing machine according to claim 1, characterized in that: The crotch-supporting mechanism includes a fixed seat, on which two V-shaped main arms are rotatably and symmetrically arranged, a seat body is arranged at the other end of the main arm, a U-shaped elastic support is arranged in the groove of the seat body, a support arm is arranged on the U-shaped elastic support, a spring is arranged between the main arms through a hanging column, and the spring is fixed between the two main arms through two hanging columns.

4. The crotch cutting device of the crotch sewing machine according to claim 3, characterized in that: The rod end of the U-shaped elastic support is rotated and arranged in the notch with an interval up and down, and the rod end of the U-shaped elastic support is supported by a cushion block.

5. The crotch cutting device of the crotch sewing machine according to claim 3, characterized in that: One end of the support arm is rotatably connected in the notch, and the other end of the support arm is sleeved with a rod portion of a U-shaped elastic support.

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