A punching and lining feeding device for tying the waist of trousers and its usage method

Abstract

The present invention relates to the technical field of clothing punching, and discloses a punching and lining feeding device for tying the waist of trousers, which includes a sewing machine table board. The upper end of the sewing machine table board is fixedly connected with a bartack machine. The front end of the bartack machine is equipped with a bartack machine needle. The lower part of the bartack machine is connected with a bartack machine needle platform. The top end of the bartack machine needle platform is fixedly connected with a bartack machine feeding board. The left side of the front end of the bartack machine is fixedly connected with a pressure wheel. The right end of the bartack machine is provided with an introduction end of a lining strip. Through the cooperation of structures such as an air cylinder and a fixed cutting knife in the present invention, different speeds and the adjustment of hole distances can be flexibly set, so that the user has a high degree of autonomy, and the structure is simple, the installation and debugging are fast, the operation is convenient, the lining feeding efficiency, the lining feeding quality, the bartack efficiency and the working quality are greatly improved, and the use flexibility of the device is relatively high.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing punching, and particularly to a punching and lining feeding device for waist knotting of trousers and its using method. Background Technique

[0002] For clothing such as jeans or high-grade dress pants, since a small piece, usually circular non-woven fabric or cloth, needs to be added inside at the trouser loops at the waist, the two corners at the pocket mouth, and the crotch part to increase the pulling strength, a round piece needs to be placed above the needle hole of the bartack machine first and sewn on the inner side of the trouser piece together during bartacking.

[0003] To solve this problem, many factories punch the lining cloth into circles in advance, and then manually sew and place one on the feeding plate above the needle hole of the bartack machine one by one. This method is feasible, but the efficiency is very low and the cost is relatively high; there are also automatic punching and lining feeding machines currently, but the overall size is long. Since the finished trouser waist part is cylindrical and the crotch part also needs to be sewn, the waist needs to be put into the machine forward. However, the existing devices are not convenient for putting in and sewing, and it is difficult to meet the needs of different customers. For this reason, the technical personnel in this field now propose a punching and lining feeding device for waist knotting of trousers and its using method to solve the above problems. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a punching and lining feeding device for waist knotting of trousers and its using method, which solves the problems of the existing lining feeding device that requires manual lining placement and manual insertion of the trouser waist for sewing parts such as the crotch, resulting in low flexibility, lining feeding quality and efficiency.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A punching and lining feeding device for waist knotting of trousers, comprising:

[0006] A sewing machine table board, above which a bartack machine is fixedly connected. A bartack machine needle is installed at the front end of the bartack machine. A bartack machine needle platform is connected below the needle of the bartack machine. A bartack machine feeding plate is fixedly connected above the bartack machine needle platform. A pressure wheel is fixedly connected to the left side of the front end of the bartack machine. A lining strip introducing end is arranged on the right side of the front end of the bartack machine. A cutter upper top piece limiting plate and a fixed cutter are fixedly connected above the right side of the front end of the bartack machine. A lining strip leading-out end is arranged on the left side of the front end of the bartack machine. A lining round piece is arranged below the front end of the bartack machine feeding plate of the bartack machine.

[0007] A punching mechanism, which is arranged on the right side of the front end of the bartack machine and is used for punching the lining.

[0008] The material receiving mechanism is arranged on the left side of the front end of the punching mechanism and is used to collect the punched lining cloth.

[0009] Preferably, the punching mechanism includes a cylinder. The upper end of the cylinder is fixedly connected below the punching mechanism mounting base plate by screw h. The top sliding rod of the cylinder is connected to a cutter cylinder connecting rod, which is locked by a nut arranged externally. The top end of the cutter cylinder connecting rod is fixedly connected with a bearing a. The outside of the bearing a is fixedly connected with a moving cutter by screw g. The outside of the moving cutter is slidably connected with a graphite self-lubricating bushing. The top end of the graphite self-lubricating bushing is fixedly connected with an upper mounting plate. The bottom end of the upper mounting plate is fixedly connected with a support rod by screw n. The top end of the upper mounting plate is fixedly connected with a fixed cutter. An isolation column is fixed above the fixed cutter. The top end of the isolation column is fixedly connected with a cutter upper top piece by screw f. The top end of the cutter upper top piece is fixedly connected with a cutter upper top piece limiting plate by screw m. A compression spring is arranged below the cutter upper top piece limiting plate.

[0010] Preferably, the material receiving mechanism includes an overall machine mounting base plate, a material receiving wheel mounting seat and a material receiving pressing wheel mounting plate. The bottom end of the overall machine mounting base plate is fixedly connected to the top end of the sewing machine table board by screw e. The left end of the overall machine mounting base plate is fixedly connected with a motor mounting plate by screw d. The rear end of the motor mounting plate is fixedly connected with a stepping motor by screw c. The upper side of the rear end of the motor mounting plate is fixedly connected with a material receiving wheel mounting seat by screw i. The rear end of the material receiving wheel mounting seat is slidably connected with a synchronous belt. A synchronous pulley b is arranged inside the synchronous belt. The outside of the synchronous pulley b is slidably connected with a driving wheel shaft. The synchronous pulley b is connected with a synchronous pulley a by the synchronous belt. The synchronous pulley a is fixedly connected with a motor shaft by set screw a. The outside of the material receiving wheel mounting seat is slidably connected with a bearing b. A snap ring b is fixedly connected to the rear shaft end of the bearing b. The bearing b is fixedly connected inside the material receiving wheel mounting seat by screw j. A snap ring a is installed on the outside of the bearing c. A pin shaft is slidably connected inside the material receiving wheel mounting seat. The rear end of the pin shaft is fixedly connected with a limiting bushing by set screw e. A compression tower spring is arranged inside the material receiving wheel mounting seat. The rear end of the compression tower spring is fixedly connected with a flat washer. A pressing wheel is arranged inside the material receiving pressing wheel mounting plate. A pressing wheel shaft is slidably connected inside the pressing wheel. The front end of the material receiving pressing wheel mounting plate is threadedly connected with a set screw f.

[0011] Preferably, the material receiving mechanism is fixedly connected to the top end of the motor mounting plate by screw e, and the motor mounting plate is fixedly connected above the left side of the overall machine mounting base plate.

[0012] Preferably, the top end face of the moving cutter has two orthogonal arc surfaces with a depth of about one millimeter, forming four sharp corners on the circumference of the cut.

[0013] Preferably, the thin end at the rear side of the driving wheel shaft is sleeved with a synchronous wheel, and then a synchronous belt is sleeved. The two ends are respectively inserted into the inner holes of the bearings at the front and rear ends of the holes of the material receiving wheel mounting seat, and the two ends are limited by circlips. The pressure wheel shaft passes through the hole of the pressing wheel mounting plate from the front end, then passes through the hole of the pressure wheel, and then passes through the hole at the rear end of the pressing wheel mounting plate, and is fixed to the pressing wheel mounting plate by a set screw.

[0014] Preferably, a gasket is placed in the middle hole of the material receiving and pressing wheel mounting plate and presses the compression tower spring, and then they are placed together in the corresponding hole of the material receiving wheel mounting seat. The pin shaft passes through the material receiving wheel mounting seat from the front end and then passes through the middle hole of the material receiving and pressing wheel mounting plate, and the rear end is limited by a limit bush. The pressure wheel shaft is fixedly connected to the outside of the material receiving and pressing wheel mounting plate by a set screw c.

[0015] Preferably, a method for using a punching and feeding lining device for tying the waist of trousers includes the following steps:

[0016] S1: Before working, install the material tray on the bracket under the left side of the whole machine table board of the device, and guide it from below to above the punching mechanism. First, lead out the end of the lining strip through the long strip-shaped groove between the upper mounting plate and the fixed cutting knife on the right side, then pass through the lower part of the feeding plate of the bartack machine, lead it to the left side, press down the material receiving and pressing wheel mounting plate on the material receiving device by hand, pass the leading end of the lining strip between the driving wheel shaft and the pressure wheel, and then lead it to the gap between the lower material receiving wheel mounting seat and the machine head;

[0017] S2: After power on, press the switch manually once. The controller controls the solenoid valve to act, and the cutting knife cylinder acts once, driving the moving knife to move upward and enter the fixed cutting knife hole to complete one punching. Then the controller controls the motor on the left to rotate. Through the synchronous wheel and the synchronous belt, the driving wheel shaft rotates counterclockwise to move the lining to the left by a set distance. If the pressure of the pressure wheel is not enough and the lining slips, the set screw f can be screwed in clockwise until there is no slippage. Repeat this way until the first punching position is moved above the needle hole of the feeding plate, and it is appropriate to ensure that the sewing thread is exactly in the middle of the disc. Otherwise, the left and right corresponding positions of the whole machine mounting base plate above the table board can be adjusted until it is appropriate;

[0018] S3: Place the position of the trouser material to be sewn directly below the sewing needle above the feeding plate, step on the foot pedal of the bartack machine, and the machine performs sewing. After completion, the machine automatically raises the presser foot. The controller of this punching and feeding lining device detects the signal of the presser foot raising, controls the cylinder to punch, and feeds forward by one hole pitch. Then place the second trouser material position to be sewn directly below the sewing needle above the feeding plate, step on the foot pedal of the bartack machine, and the machine performs sewing. After completion, the machine automatically raises the presser foot. Repeat this way.

[0019] Working principle: When the device needs to be used, the material receiving device on the left drives the pressing cooperation between the driving wheel shaft and the pressing wheel through a stepping motor, a synchronous pulley and a synchronous belt, precisely moves the sewn lining cloth to the left, and drives the punched round pieces to move to the left above the needle holes. Since the punching mechanism and the material receiving device are fixed on the left and right sides of the whole machine mounting base plate, during installation, as long as the whole device is pushed onto the table plate under the machine head, the front, back, left and right positions are appropriately adjusted, and the whole machine mounting base plate is fixed above the table plate, it can be operated. The installation is convenient, the operation is flexible, and it can be automatically started and paused only according to the action of the presser foot of the device, improving the work efficiency and quality and reducing the waste of raw materials.

[0020] The present invention provides a punching and feeding lining device for tying knots on the waist of trousers. It has the following beneficial effects:

[0021] 1. Through the coordinated use of structures such as cylinders, fixed cutting knives, driving wheel shafts, set screws f, etc., the present invention solves the traditional manual operation of placing the lining by hand and also solves the sewing of parts such as the crotch when the waist of the trousers is put on. It can flexibly set different speeds and the adjustment of hole distances, making the user highly autonomous, with a simple structure, rapid installation and debugging, convenient operation, greatly improving the lining feeding efficiency, lining feeding quality, bar tacking efficiency and work quality, and making the device highly flexible in use.

[0022] 2. Through the coordinated use of structures such as the driving wheel shaft, synchronous belt, material receiving wheel mounting seat, pressing wheel shaft, material receiving pressing wheel mounting plate, etc., the present invention makes the transmission of the lining strip relatively stable, thus improving the punching accuracy, improving the punching quality, and facilitating the collection of waste materials generated during punching, improving the collection efficiency.

[0023] 3. The present invention is provided with a cylinder to drive the cutting knife, and then the moving cutting knife vertically moves in the shaft sleeve to cut the lining cloth into the fixed knife plate. It can cut thicker lining cloth, and can also increase the pressure by adding a pressure boosting valve to cut even thicker lining cloth, making the cutting of the lining cloth more convenient and greatly reducing the labor intensity of workers. Brief description of the drawings

[0024] Figure 1 is the front view of the present invention;

[0025] Figure 2 is the left view of the present invention;

[0026] Figure 3 is the top view of the present invention;

[0027] Figure 4 is Figure 1 the enlarged view of part A in

[0028] Figure 5 isFigure 1 Enlarged view at position B in

[0029] Figure 6 is Figure 2 Enlarged view at position C in

[0030] Figure 7 is Figure 2 Enlarged view at position D in

[0031] Figure 8 is Figure 3 Enlarged view at position E in

[0032] Figure 9 is Figure 3 Enlarged view at position F in

[0033] Among them, 1. Lining disc; 2. Introduction end of lining strip; 3. Cylinder; 4. Screw b; 5. Whole machine installation base plate; 6. Sewing machine table plate; 7. Outlet end of lining strip; 8. Motor mounting plate; 9. Motor shaft; 10. Screw c; 11. Screw d; 12. Screw e; 13. Synchronous pulley a; 14. Synchronous belt; 15. Take-up wheel mounting seat; 16. Take-up pressure wheel mounting plate; 17. Compression tower spring; 18. Flat gasket; 19. Pin shaft; 20. Pressure wheel shaft; 21. Pressure wheel; 22. Snap ring a; 23. Driving wheel shaft; 24. Buttonholer needle platform; 25. Buttonholer feeding plate; 26. Buttonholer; 27. Buttonholer needle; 28. Screw f; 29. Limit plate for cutter upper top piece; 30. Isolation column; 31. Compression spring; 32. Cutter upper top piece; 33. Fixed cutter; 34. Upper mounting plate; 35. Graphite self-lubricating bushing; 36. Moving cutter; 37. Bearing a; 38. Screw g; 39. Cutter cylinder connecting rod; 40. Support rod; 41. Nut; 42. Screw h; 43. Punching mechanism mounting base plate; 44. Set screw a; 45. Stepper motor; 46. Screw i; 47. Synchronous pulley b; 48. Bearing b; 49. Snap ring b; 50. Screw m; 51. Screw j; 52. Bearing c; 53. Set screw c; 54. Screw n; 55. Set screw e; 56. Gasket; 57. Limit bushing; 58. Set screw f. Specific embodiments

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment:

[0036] Please refer to the attached Figure 1 - attachedFigure 9 , an embodiment of the present invention provides a punching and feeding lining device for tying the waistband of trousers, comprising:

[0037] A sewing machine table board (6), a bartack machine (26) is fixedly connected above the sewing machine table board (6), a bartack machine needle (27) is installed at the front end of the bartack machine (26), a bartack machine needle platform (24) is connected below the needle of the bartack machine (26), a bartack machine feeding board (25) is fixedly connected above the bartack machine needle platform (24), a pressing wheel (21) is fixedly connected to the left side of the front end of the bartack machine (26), a lining strip introducing end (2) is arranged on the right side of the front end of the bartack machine (26), a cutter top piece limiting plate (29) and a fixed cutter (33) are fixedly connected above the right side of the front end of the bartack machine (26), a lining strip leading-out end (7) is arranged on the left side of the front end of the bartack machine (26), and a lining disc (1) is arranged below the front end of the bartack machine feeding board (25) of the bartack machine (26);

[0038] A punching mechanism, which is arranged on the lower side of the output end of the bartack machine 26 and is used for punching the lining;

[0039] A material collecting mechanism, which is arranged on the lower side of the punching mechanism and is used for collecting the punched lining.

[0040] When cutting the lining strip, by starting the air cylinder to drive the cutter to move vertically in the shaft sleeve, the lining is fed into the fixed knife plate for cutting. It can cut thicker lining, and can also increase the pressure by adding a pressure boosting valve to cut even thicker lining. After the lining strip is sewn, the stepping motor 45 drives the pressing cooperation between the driving wheel shaft 23 and the pressing wheel 21 through the synchronous pulley and the synchronous belt 14, accurately moves the sewn lining backward, drives the punched disc to move leftward above the needle hole. At this time, the whole device is pushed onto the table board below the machine head, the front-back and left-right positions are adjusted appropriately, the whole machine installation bottom plate 5 is fixed above the table board, and the lining strip is punched, making the installation more convenient, the operation more flexible, improving the work efficiency and quality, reducing the waste of raw materials, so that the practicability of the device is relatively high.

[0041] The punching mechanism includes a cylinder (3). The cylinder 3 is fixed below by passing four screws h42 through from above the punching mechanism mounting base plate 43. A nut 41 is sleeved on the sliding rod of the cylinder 3. The cutter cylinder connecting rod 39 is sleeved on the top end of the sliding rod of the cylinder 3 and locked by the nut 41. Two bearings a37 are fixed on both sides of the cutter cylinder connecting rod 39. Two screws g38 pass through the bearings a37 to fix the moving cutter 36 above the cutter cylinder connecting rod 39 and insert into the holes of the graphite self-lubricating bush 35. Four screws b4 fix four support rods 40 above the punching mechanism mounting base plate 43. The inner hole of the upper mounting plate 34 is sleeved on the outer circle of the graphite self-lubricating bush 35 and fixed below the upper mounting plate 34 by screws passing upward through the holes of the graphite self-lubricating bush 35. And the upper mounting plate 34 is fixed above the four support rods 40 by four screws n54. The fixed cutter 33 is fixed above the upper mounting plate 34 by four screws. Two spacer columns 30 are fixed above the fixed cutter 33. The screw m50 passes through the middle hole of the cutter upper top piece limiting plate 29 and then sleeved with a compression spring 31, and screwed into the cutter upper top piece 32, and fixed above the spacer columns 30 by two screws f28.

[0042] The cylinder 3 is fixed below by passing four screws h42 through from above the punching mechanism mounting base plate 43. A nut 41 is sleeved on the sliding rod of the cylinder 3. The cutter cylinder connecting rod 39 is sleeved on the top end of the sliding rod of the cylinder 3 and locked by the nut 41. Two bearings a37 are fixed on both sides of the cutter cylinder connecting rod 39. Two screws g38 pass through the bearings a37 to fix the moving cutter 36 above the cutter cylinder connecting rod 39 and insert into the holes of the graphite self-lubricating bush 35. Four screws b4 fix four support rods 40 above the punching mechanism mounting base plate 43. The inner hole of the upper mounting plate 34 is sleeved on the outer circle of the graphite self-lubricating bush 35 and fixed below the upper mounting plate 34 by screws passing upward through the holes of the graphite self-lubricating bush 35. And the upper mounting plate 34 is fixed above the four support rods 40 by four screws n54. The fixed cutter 33 is fixed above the upper mounting plate 34 by four screws. Two spacer columns 30 are fixed above the fixed cutter 33. The screw m50 passes through the middle hole of the cutter upper top piece limiting plate 29 and then sleeved with a compression spring 31, and screwed into the cutter upper top piece 32, and fixed above the spacer columns 30 by two screws f28.

[0043] The material receiving mechanism includes the whole machine mounting base plate 5, the material receiving wheel mounting seat 15 and the material receiving pressing wheel mounting plate 16. The bottom end of the whole machine mounting base plate 5 is fixedly connected to the top end of the sewing machine table plate 6 by screws e12. The left end of the whole machine mounting base plate 5 is fixedly connected with a motor mounting plate 8 by screws d11. A stepping motor 45 is fixedly connected to the rear end of the motor mounting plate 8 by screws c10. The upper side of the rear end of the motor mounting plate 8 is fixedly connected with a material receiving wheel mounting seat 15 by screws i46. A synchronous belt 14 is slidably connected to the rear end of the material receiving wheel mounting seat 15. A synchronous pulley b47 is arranged inside and outside the synchronous belt 14. The outer inner shaft hole of the synchronous pulley b47 is slidably connected with a driving wheel shaft 23. The synchronous pulley b47 is connected to a synchronous pulley a13 through the synchronous belt 14. The synchronous pulley a13 is fixedly connected with a motor shaft 9 by a set screw a44.

[0044] A bearing b48 is slidably connected to the rear end of the material receiving wheel mounting seat 15. A snap ring b49 is fixedly connected to the driving wheel shaft 23 at the rear side of the bearing b48. The bearing b48 is fixedly connected by screws j51. A snap ring a22 is installed on the outside of the bearing c52 at the front end of the driving wheel shaft 23. A pin shaft 19 is slidably connected inside the material receiving wheel mounting seat 15. A limiting bushing 57 is fixedly connected to the rear end of the pin shaft 19 by a set screw e55. A compression tower spring 17 is arranged inside the material receiving wheel mounting seat 15. There is a flat washer 18 at the rear end of the compression tower spring 17. A pressing wheel 21 is arranged inside the material receiving pressing wheel mounting plate 16. A pressing wheel shaft 20 is slidably connected inside the pressing wheel 21. A set screw f58 is threadedly connected to the front end of the material receiving pressing wheel mounting plate 16.

[0045] The thin end of the driving wheel shaft 23 is sleeved into the synchronous wheel b47, then the synchronous belt 14 is sleeved on it, and it extends into the hole at the rear end of the material receiving wheel mounting seat 15. A bearing b48 is sleeved on the outside and is flush with the rear side. The shaft end is clamped into the circlip b49, and the bearing is pressed by the screw j51. A bearing c52 is sleeved in the outer hole at the front end of the material receiving wheel mounting seat 15, and the shaft end is clamped into the circlip a22. The pressure wheel shaft 20 passes through the front hole of the material receiving and pressing wheel mounting plate 16, then through the hole of the pressure wheel 21, and then through the rear hole of the material receiving and pressing wheel mounting plate 16. The pressure wheel shaft 20 is fixed to the material receiving and pressing wheel mounting plate 16 by two set screws c53. The flat washer 18 is placed into the hole of the material receiving and pressing wheel mounting plate 16, and then the compression tower spring 17 is placed. It is aligned with the hole on the front side of the material receiving wheel mounting seat 15. The pin shaft 19 passes through the front hole of the material receiving wheel mounting seat 15, then through the hole below the material receiving and pressing wheel mounting plate 16 and the rear hole of the material receiving wheel mounting seat 15. The limit shaft sleeve 57 is fixed at the rear end of the pin shaft 19 by the set screw e55, and the set screw f58 is screwed into the threaded hole in front of the material receiving and pressing wheel mounting plate 16. The stepping motor 45 is fixed to the rear of the motor mounting plate 8 by four screws c10. The synchronous wheel a13 is fixed to the motor shaft 9 by the set screw a44. After the synchronous belt 14 is sleeved on the synchronous wheel a13 and the synchronous wheel b47 and tightened, the rear end of the material receiving wheel mounting seat 15 is fixed to the upper rear of the motor mounting plate 8 by four screws i46. The motor mounting plate 8 is fixed to the left end of the whole machine mounting base plate 5 by four screws d11.

[0046] The material receiving mechanism is fixedly connected to the top of the motor mounting plate 8 through the screw e12. The motor mounting plate 8 is fixedly connected to the upper left side of the whole machine mounting base plate 5. The punching mechanism is fixedly connected to the top of the motor mounting plate 8 through the screw e12. The other end of the motor mounting plate 8 is fixedly connected to the upper right side of the whole machine mounting base plate 5.

[0047] The position between the material receiving mechanism and the punching mechanism can be fixed, and the material receiving mechanism and the punching mechanism will not affect each other during operation.

[0048] On the top end face of the moving knife 36, there are two orthogonal arc surfaces with a depth of about one millimeter, forming four sharp corners on the circumference of the incision.

[0049] Thus, the moving knife 36 can easily punch the lining strips, thereby improving the punching efficiency and the production efficiency of the lining strips.

[0050] The thin end at the rear side of the driving wheel shaft 23 is sleeved into the synchronous wheel, then the synchronous belt 14 is sleeved on it. The two ends are respectively inserted into the inner holes of the bearings in the front and rear end holes of the material receiving wheel mounting seat 15, and the two ends are limited by circlips. The pressure wheel shaft 20 passes through the hole of the pressing wheel mounting plate from the front, then through the hole of the pressure wheel 21, and then through the rear hole of the pressing wheel mounting plate, and is fixed to the pressing wheel mounting plate by the set screw.

[0051] Thus, the driving wheel shaft 23 can conveniently transmit the lining cloth strip, and the transmission is relatively stable, thereby improving the punching accuracy and the punching quality.

[0052] Put a gasket 56 into the middle hole of the material receiving pressing wheel mounting plate 16, press the compression tower spring 17, and put them together into the corresponding hole of the material receiving wheel mounting seat 15. The pin shaft 19 passes through the front end of the material receiving wheel mounting seat 15 and then through the middle hole of the material receiving pressing wheel mounting plate 16, and the rear end is limited by the limit bushing 57. The pressing wheel shaft 20 is fixedly connected to the outside of the material receiving pressing wheel mounting plate 16 through the set screw c53.

[0053] Thus, structures such as the material receiving pressing wheel mounting plate 16 can be conveniently installed, and the installation is relatively stable, so that the waste generated during punching can be conveniently collected, improving the collection efficiency.

[0054] A method for using a punching and feeding lining device for tying the waist of trousers includes the following steps:

[0055] S1: Before working, install the material tray on the bracket under the left side of the whole machine table board of this device, and guide it from below to above the punching mechanism. First, lead out the end 7 of the lining cloth strip through the long strip groove between the upper mounting plate 34 and the fixed cutting knife 33 on the right side, then pass through the lower part of the feeding plate 25 of the bartack machine, lead it to the left side, press down the material receiving pressing wheel mounting plate 16 on the material receiving device by hand, pass the end 7 of the lining cloth strip through between the driving wheel shaft 23 and the pressing wheel 21, and then lead it to the gap between the lower material receiving wheel mounting seat 15 and the machine head;

[0056] The lining cloth strip is placed relatively stably, and can be placed in a limited position, so that the lining cloth strip is more stable when being cut or punched, and the lining cloth strip can be conveyed smoothly, achieving a continuous effect, so that the lining cloth strip can be more conveniently processed;

[0057] S2: After power on, press the switch manually once, the controller controls the solenoid valve to act, the cutting knife cylinder 3 acts once, drives the moving knife 36 to move upward, enters the hole of the fixed cutting knife 33, and completes one punching. The controller then controls the left motor to rotate, drives the driving wheel shaft 23 to rotate counterclockwise through the synchronous pulley and the synchronous belt 14, moves the lining cloth to the left by a set distance. If the pressure of the pressing wheel 21 is not enough and the lining cloth slips, the set screw f58 can be screwed in clockwise until there is no slippage. Repeat this way until the first punching position is moved above the needle hole of the feeding plate, and it is appropriate to ensure that the sewing thread is exactly in the middle of the disc. Otherwise, the left and right corresponding positions of the whole machine mounting base plate 5 above the table board can be adjusted until it is appropriate;

[0058] The strip of lining can be punched smoothly, and the moving knife and the fixed cutting knife cooperate closely with the strip of lining, so that when the strip of lining moves to the defined position, the moving knife and the fixed cutting knife can cut and punch it, thereby making the distance between the holes consistent and the quality of the cutting and punching relatively high;

[0059] S3: Place the position of the trouser material to be sewn directly below the sewing needle above the feeding plate, step on the foot pedal of the bartack machine 26, the machine performs sewing, and after completion, the machine automatically raises the presser foot. The controller of this punching and lining feeding device detects the signal of the presser foot being raised, controls the cylinder 3 to punch, and advances a hole pitch forward. Then place the position of the second trouser material to be sewn directly below the sewing needle above the feeding plate, step on the foot pedal of the bartack machine 26, the machine performs sewing, and after completion, the machine automatically raises the presser foot, and so on;

[0060] Use the controller to control the cutting and punching, so that the distance between the punched holes is consistent, and the punching distance can be adjusted by controlling the controller, thereby making the device highly flexible in use and improving the punching efficiency.

[0061] Through the unique design of the structure, the present invention solves the problems of the existing punching machines with complex structures, large lateral dimensions, difficult insertion of the trouser waist, and affecting the operation, making the installation and operation simple, and greatly improving the bartack efficiency and working quality.

[0062] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A punching and lining feeding device for tying the waist of trousers, characterized in that, Including: A sewing machine table board (6), above which a bartack machine (26) is fixedly connected. At the front end of the bartack machine (26), a bartack machine needle (27) is installed. Below the needle of the bartack machine (26), a bartack machine needle platform (24) is connected. Above the bartack machine needle platform (24), a bartack machine feeding plate (25) is fixedly connected. On the left side of the front end of the bartack machine (26), a presser wheel (21) is fixedly connected. On the upper right side of the front end of the bartack machine (26), a cutting knife upper top piece limiting plate (29) and a fixed cutting knife (33) are fixedly connected. On the upper left side of the front end of the bartack machine (26), a lining strip belt outlet end (7) is provided. Below the front ends of the bartack machine (26) and the bartack machine feeding plate (25), a lining round piece (1) is provided; A punching mechanism, which is arranged on the right side of the front end of the bartack machine (26) and is used for punching the lining. The punching mechanism includes a cylinder (3). The upper end of the cylinder (3) is fixedly connected below a punching mechanism mounting bottom plate (43) through a screw h (42). The top slide bar of the cylinder (3) is connected with a cutting knife cylinder connecting rod (39), which is locked by an externally provided nut (41). The top end of the cutting knife cylinder connecting rod (39) is fixedly connected with a bearing a (37). Outside the bearing a (37), a moving knife (36) is fixedly connected through a screw g (38). The outside of the moving knife (36) is slidably connected with a graphite self-lubricating bushing (35). The top end of the graphite self-lubricating bushing (35) is fixedly connected with an upper mounting plate (34). The bottom end of the upper mounting plate (34) is fixedly connected with a support rod (40) through a screw n (54). The top end of the upper mounting plate (34) is fixedly connected with a fixed cutting knife (33). Above the fixed cutting knife (33), an isolation column (30) is fixed. The top end of the isolation column (30) is fixedly connected with a cutting knife upper top piece (32) through a screw f (28). The top end of the cutting knife upper top piece (32) is fixedly connected with a cutting knife upper top piece limiting plate (29) through a screw m (50). Below the cutting knife upper top piece limiting plate (29), a compression spring (31) is provided; A material collecting mechanism, which is arranged on the left side of the front end of the bartack machine (26) and is used for collecting the lined cloth after punching and sewing.

2. The punching and lining feeding device for tying the waistband of trousers according to claim 1, characterized in that, The material receiving mechanism includes an integral machine mounting base plate (5), a material receiving wheel mounting seat (15) and a material receiving pressing wheel mounting plate (16). The bottom end of the integral machine mounting base plate (5) is fixedly connected to the top end of the sewing machine table board (6) by a screw e (12). The left end of the integral machine mounting base plate (5) is fixedly connected with a motor mounting plate (8) by a screw d (11). A stepping motor (45) is fixedly connected to the rear end of the motor mounting plate (8) by a screw c (10). A material receiving wheel mounting seat (15) is fixedly connected to the upper side of the rear end of the motor mounting plate (8) by a screw i (46). A synchronous belt (14) is slidably connected to the rear end of the material receiving wheel mounting seat (15). A synchronous pulley b (47) is arranged inside the synchronous belt (14). A driving wheel shaft (23) is slidably connected to the outside of the synchronous pulley b (47). A bearing c (52) is arranged at the front end of the driving wheel shaft (23). The synchronous pulley b (47) is connected to a synchronous pulley a (13) by the synchronous belt (14). The synchronous pulley a (13) is fixedly connected to a motor shaft (9) by a set screw a (44). A bearing b (48) is slidably connected to the outside of the material receiving wheel mounting seat (15). A snap ring b (49) is fixedly connected to the rear shaft end of the bearing b (48). The bearing b (48) is fixedly connected inside the material receiving wheel mounting seat (15) by a screw j (51). A snap ring a (22) is installed on the outside of the bearing c (52). A pin shaft (19) is slidably connected inside the material receiving wheel mounting seat (15). A limiting shaft sleeve (57) is fixedly connected to the rear end of the pin shaft (19) by a set screw e (55). A compression tower spring (17) is arranged inside the material receiving wheel mounting seat (15). A flat gasket (18) is fixedly connected to the rear end of the compression tower spring (17). A pressing wheel (21) is arranged inside the material receiving pressing wheel mounting plate (16). A pressing wheel shaft (20) is slidably connected inside the pressing wheel (21). A set screw f (58) is threadedly connected to the front end of the material receiving pressing wheel mounting plate (16).

3. The punching and lining feeding device for tying the waist of trousers according to claim 1, characterized in that, The material receiving mechanism is fixedly connected to the top end of the motor mounting plate (8) by a screw e (12), and the motor mounting plate (8) is fixedly connected above the left side of the integral machine mounting base plate (5).

4. A punching and lining feeding device for tying the waist of trousers according to claim 2, characterized in that, The top end face of the moving blade (36) has two orthogonal arc surfaces with a depth of about one millimeter, forming four sharp corners on the circumference of the incision.

5. A punching and lining feeding device for tying the waist of trousers according to claim 2, characterized in that, A gasket (56) is placed in the middle hole of the material receiving pressing wheel mounting plate (16) and pressed against the compression tower spring (17) and then placed together into the corresponding hole of the material receiving wheel mounting seat (15). The pin shaft (19) passes through the front end of the material receiving wheel mounting seat (15) and then through the middle hole of the material receiving pressing wheel mounting plate (16), and the rear end is limited by the limiting shaft sleeve (57). The pressing wheel shaft (20) is fixedly connected to the outside of the material receiving pressing wheel mounting plate (16) by a set screw c (53). The pressing wheel shaft (20) passes through the hole of the pressing wheel mounting plate from the front end, then through the hole of the pressing wheel (21), and then through the rear hole of the pressing wheel mounting plate, and is fixed to the pressing wheel mounting plate by a set screw.

6. The punching and lining feeding device for tying the waistband of trousers according to claim 2, characterized in that, The thin end at the rear of the driving wheel shaft (23) is sleeved with a synchronous wheel, and then a synchronous belt (14) is sleeved on it. The two ends are respectively inserted into the inner holes of the bearings in the front and rear holes of the material receiving wheel mounting seat (15), and the two ends are limited by circlips.

7. A method of using a punching and lining feeding device for tying the waist of trousers, according to a punching and lining feeding device for tying the waist of trousers as claimed in claim 2, characterized in that, It includes the following steps: S1: Before working, install the material tray on the bracket under the left whole machine table board of this device, and guide it from below to above the punching mechanism. First, lead out the end (7) of the lining cloth strip through the long strip groove between the upper mounting plate (34) on the right and the fixed cutting knife (33), then pass through the lower part of the feed plate (25) of the bartack machine, lead it to the left, press down the material receiving pressing wheel mounting plate (16) on the material receiving device by hand, pass the end (7) of the lining cloth strip through between the driving wheel shaft (23) and the pressure wheel (21), and then lead it to the gap between the lower material receiving wheel mounting seat (15) and the machine head; S2: After power on, press the switch manually once. The controller controls the solenoid valve to act, and the cylinder (3) acts once, driving the moving knife (36) to move upward and enter the hole of the fixed cutting knife (33) to complete one punching. Then the controller controls the left motor to rotate. Through the synchronous wheel and the synchronous belt (14), it drives the driving wheel shaft (23) to rotate counterclockwise, moving the lining cloth to the left by a set distance. If the pressure of the pressure wheel (21) is insufficient and causes the lining cloth to slip, the set screw f (58) can be screwed in clockwise until there is no slipping. Repeat this process until the first punching position is moved above the needle hole of the feed plate, and it is appropriate to ensure that the sewing thread is exactly in the middle of the disc. Otherwise, the left and right corresponding positions of the whole machine mounting base plate (5) above the table board can be adjusted until it is appropriate; S3: Place the position of the trouser material to be sewn directly below the sewing needle on the feed plate. Step on the foot pedal of the bartack machine (26). The machine performs sewing. After completion, the machine automatically raises the presser foot. The controller of this punching and feeding lining device detects the signal of the presser foot being raised, controls the cylinder (3) to punch, and feeds forward by one pitch. Then place the position of the second trouser material to be sewn directly below the sewing needle on the feed plate. Step on the foot pedal of the bartack machine (26). The machine performs sewing. After completion, the machine automatically raises the presser foot. Repeat this process.

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