CN220224563U

CN220224563U - Bird nozzle arm assembly of linking machine

Info

Publication number: CN220224563U
Application number: CN202322243337.2U
Authority: CN
Inventors: 林俊辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-21
Filing date: 2023-08-21
Publication date: 2023-12-22
Anticipated expiration: 2033-08-21

Abstract

The utility model discloses a bird nozzle arm assembly of a linking machine, wherein a bird nozzle rod is connected to a frame, a first rotating wheel shaft is connected to one end of the bird nozzle rod, an adjusting rod is arranged at the other end of the bird nozzle rod and can adjust the extending length of the lower end of the bird nozzle rod, the first rotating wheel is attached to a cam, a spring is connected between one end of a balance arm and the frame of the linking machine, the other end of the balance arm is connected with a second rotating wheel, the second rotating wheel is attached to the cam, a telescopic transmission shaft is arranged on a shaft sleeve seat, a cantilever support is arranged at the lower end of the shaft sleeve seat, and a thread picking arm is connected to the upper shaft of the cantilever support. The transmission path of the whole transmission mechanism is short, the structure strength of the adjusting rod is high, the transmission error is small, the up-down swing is stable and reliable, the vibration of the adjusting rod is small during high-speed operation, the noise during high-speed operation of the linking machine is effectively reduced, the grade of a product is effectively improved, the whole structure is simple and reliable, the sewing speed can be improved by more than one time, the production efficiency is greatly improved, and therefore the actual use requirement of a user is effectively met.

Description

Bird nozzle arm assembly of linking machine

Technical Field

The utility model relates to the technical field of sewing machinery, in particular to a bird nozzle arm assembly of a linking machine.

Background

As is well known, the sewing machine is also called a disc sewing machine, commonly called a looping machine, uses a sewing machine for sewing front and back panels, collars, bags, sleeves and the like of the knitting sweater, can efficiently and quickly finish sewing work of the garment pieces of the sweater by means of the sewing machine, is several times of manual sewing efficiency, and has good sewing quality and higher efficiency.

For example: the Chinese patent No. 201721576184.1 discloses an automatic sewing finishing device for a sewing machine clothing piece, which has the main structure that: the automatic clothes piece sewing collator consists of a chute of a sewing machine, a push rod and a return spring, and simulates the actions of manual clothes pieces to collate the clothes pieces; although the linking machine can replace the manual linking between the clothing pieces, the transmission structure adopts a horizontal connecting rod to be arranged at the upper end of the clothing piece stitching automatic collator, two ends of the linking machine are respectively and movably connected with the connecting piece and the cam in a matching way, the left end of the eccentric wheel is provided with a connecting rod, and one end of the eccentric wheel is in clearance fit with the connecting piece, so as to drive the thread picking device on the connecting piece to work; the linking machine adopts double-link drive, the transmission path of the transmission mechanism is longer, the transmission structure is also more complex, the length of the link is longer, the structural strength is lower, the transmission speed is also slower, the sewing speed is slow, the installation difficulty is high, accessories are easy to wear, the manufacturing cost and the assembly cost are higher, the deformation and vibration amplitude of the link during quick swinging are larger, so that the link can be operated at a high speed to ensure that the service life is shorter, the link is not accurate in transmission, the operation is unstable and reliable, the long-time high-speed operation cannot be realized, the noise generated by the rotation of the link is larger during the high-speed operation, the hearing health of a constructor is influenced, the whole grade of a product is also lower, and therefore, the defects are quite obvious, and therefore, the bird nozzle arm assembly of the linking machine is provided for solving the problems.

Disclosure of Invention

In view of the foregoing deficiencies in the prior art, the present utility model is directed to a bird nozzle arm assembly for a stitcher.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the bird mouth arm assembly of the linking machine is arranged on a frame of the linking machine, a main shaft for providing rotary torque, a balance arm and a shaft sleeve seat are arranged in a shaft connection mode, the bird mouth arm assembly comprises a bird mouth rod, an adjusting rod and a first rotating wheel, a cam is arranged on the main shaft, the bird mouth rod is connected on the frame, the first rotating wheel shaft is connected with one end of the bird mouth rod, the adjusting rod is arranged at the other end of the bird mouth rod and can adjust the extending length of the lower end of the adjusting rod, the first rotating wheel is attached to the cam, a spring is connected between one end of the balance arm and the frame of the linking machine, the other end of the balance arm is connected with a second rotating wheel in a shaft connection mode, the second rotating wheel is attached to the cam, a telescopic transmission shaft is arranged on the shaft sleeve seat, a cantilever support is connected with an upper shaft, a spring is connected between the rear end of the cantilever support and the cantilever support, the lower end of the transmission shaft is propped against the rear end of the cantilever support, and the upper end of the adjusting rod is propped against the upper end of the transmission shaft; when the cam rotates, the bird nozzle rod drives the front end of the thread taking-up arm to swing up and down through the transmission shaft.

Preferably, the middle part of the bird mouth bar is provided with a through hole, the frame is provided with a fixed shaft, the bird mouth bar is sleeved and installed on the fixed shaft through the through hole, and the top end of the bird mouth bar is provided with an oil injection groove communicated with the through hole.

Preferably, the front part of the bird mouth bar is provided with an arc-shaped arm, the tail end of the arc-shaped arm is provided with a horizontally arranged fixed column, the fixed column is provided with a threaded hole, and the lower end of the adjusting rod is screwed and installed in the threaded hole.

Preferably, the adjusting rod is a hand-screwed bolt, and a nut is arranged on the hand-screwed bolt and positioned at the upper end of the threaded hole.

Preferably, the positioning groove communicated with the threaded hole is formed in the bottom surface of the fixing column, the movable ejector block is installed in the positioning groove, the spherical surface portion is arranged at the lower end of the ejector block, the spherical surface portion is in contact with the top surface of the transmission shaft in a pushing mode, and the upper end of the ejector block is in contact with the lower end of the adjusting rod in a pushing mode.

Preferably, the back of the bird mouth bar is provided with a containing groove, the first rotating shaft is connected in the containing groove, and the outer surface of the bird mouth bar is provided with an oil filling hole communicated with the containing groove.

Preferably, bosses are arranged on the bird nozzle rod and positioned at two ends of the orifice of the through hole.

Preferably, the bird nozzle bar is integrally cast by cast iron or cast steel or cast aluminum materials.

Preferably, the first and second wheels are bearings.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, in particular, because the proposal is adopted, the adjusting rod can be used for adjusting the extension length of one end of the bird mouth rod, thereby being convenient for users to try and adjust and use, the main shaft drives the adjusting rod to swing up and down through the cam and the first rotating wheel, the friction force of the cam and the adjusting rod transmission is reduced, the bird mouth rod drives the front end of the thread taking-up arm to swing up and down through the transmission shaft, the thread taking-up arm can carry out thread taking-up operation, the transmission path of the transmission mechanism is shorter, the length of the adjusting rod is shorter, the structure strength is high, the structure is simple, the adjusting rod can be precisely transmitted, the transmission error is smaller, the up and down swing is stable and reliable, the vibration of the adjusting rod is smaller when the whole machine is operated at high speed, the service life of the whole machine is prolonged, the noise when the sewing machine is operated at high speed is effectively reduced, the product grade is effectively improved, meanwhile, the single main shaft and the cams are used for driving the bird mouth arm assembly to operate at high speed, the driving structure is simple and reliable, the sewing machine can be operated at high speed continuously, the sewing speed can be increased by more than one time, the production efficiency is greatly, the actual use is satisfied, the practical and practical.

Drawings

Fig. 1 is an isometric view of an embodiment of the utility model.

Fig. 2 is a schematic view of a bird's beak arm assembly in accordance with an embodiment of the utility model.

Fig. 3 is an exploded view of an embodiment of the present utility model.

Fig. 4 is a schematic view of the structure of a bird nozzle bar according to an embodiment of the present utility model.

In the figure:

1. a frame; 2. a bird mouth arm assembly; 3. a main shaft; 4. a balance arm; 5. a sleeve seat; 6. a bird mouth bar; 7. an adjusting rod; 8. a first wheel; 9. a cam; 10. a spring; 11. a second wheel; 12. a transmission shaft; 13. cantilever mount; 14. a thread take-up arm; 15. a through hole; 16. a fixed shaft; 17. an oil injection groove; 18. an arc arm; 19. fixing the column; 20. a threaded hole; 21. a nut; 22. a positioning groove; 23. a top block; 24. a spherical surface portion; 25. a boss; 26. a receiving groove; 27. and an oil filling hole.

Detailed Description

Embodiments of the utility model are described in detail below with reference to the attached drawings, but the utility model can be implemented in a number of different ways, which are defined and covered by the claims.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper end", "lower end", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. Either mechanically or electrically. Can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Before working description of the embodiment, for convenience of understanding the embodiment, the working principle of the special linking machine is described: the working principle of the linking machine is that the linking machine passes through two or more layers of cloth to finish stitch sewing operation through alternate speed change and up-down movement of the round. The mechanical structure of the linking machine is generally composed of linking machine, reel, main machine head, drive unit and controller. The machine head is used for making the thread pass through two or more layers of fabrics so as to realize the process of splicing and sewing.

As shown in fig. 1 to 4, in the bird's mouth arm assembly of the linking machine provided in this embodiment, a frame 1 of the linking machine is provided with a bird mouth arm assembly 2, a main shaft 3 for providing rotational torque, a balance arm 4 connected with a shaft, and a shaft sleeve seat 5, the bird mouth arm assembly 2 includes a bird mouth rod 6, an adjusting rod 7, a first rotating wheel 8, a cam 9 on the main shaft 3, the bird mouth rod 6 is connected with the frame 1, the first rotating wheel 8 is connected with one end of the bird mouth rod 6, the adjusting rod 7 is mounted at the other end of the bird mouth rod 6 and can adjust the extending length of the lower end of the bird mouth rod, the first rotating wheel 8 is attached to the cam 9, a spring 10 is connected between one end of the balance arm 4 and the frame 1 of the linking machine, the other end of the balance arm 4 is connected with a second rotating wheel 11, the second rotating wheel 11 is attached to the cam 9, a telescopic transmission shaft 12 is mounted on the shaft sleeve seat 5, the lower end of the shaft sleeve seat 5 is provided with a cantilever 13, the upper shaft of the cantilever 13 is connected with a wire arm 14, the rear end of the cantilever arm 14 is connected with the upper end of the transmission shaft 12, and the lower end of the cantilever arm 13 is connected with the upper end of the spring 12; wherein, when the cam 9 rotates, the bird nozzle lever 6 drives the front end of the thread take-up arm 14 to swing up and down through the transmission shaft 12.

When the embodiment actually works, the adjusting rod 7 can adjust the extension length of one end of the bird mouth rod 6, so that a user can test and adjust the bird mouth rod conveniently, the main shaft 3 drives the adjusting rod 7 to swing up and down through the cam 9 and the first rotating wheel 8, the friction force between the cam 9 and the transmission of the adjusting rod 7 is reduced, the bird mouth rod 6 drives the front end of the thread taking-up arm 14 to swing up and down through the transmission shaft 12, the thread taking-up arm 14 can take-up operation, the transmission path of the transmission mechanism is short, the length of the adjusting rod 7 is short, the structural strength is high, the structure is simple, the adjusting rod 7 can precisely transmit, the transmission error is small, the vertical swing is stable and reliable, the vibration of the adjusting rod 7 is small during high-speed operation, the service life of the whole machine is prolonged, the noise during high-speed operation of the sewing machine is effectively reduced, the product grade is effectively improved, meanwhile, the single main shaft 3 and the cams 9 are adopted to drive the bird mouth arm assembly 2 to move up at high speed, the driving structure is simple and reliable, the sewing machine can continuously operate at high speed, the sewing speed can be doubled, the production efficiency is greatly improved, and the practical use requirement of the user is effectively met.

Further, a through hole 15 is formed in the middle of the bird nozzle rod 6 in the embodiment, a fixed shaft 16 is arranged on the frame 1, the bird nozzle rod 6 is sleeved and mounted on the fixed shaft 16 through the through hole 15, and an oil injection groove 17 communicated with the through hole 15 is formed in the top end of the bird nozzle rod 6. The user conveniently lubricates and maintains the fixed shaft 16 through the oil injection groove 17, so that friction force during swinging of the bird nozzle rod 6 is effectively reduced, and the high operation of the whole machine is ensured.

Further, the front portion of the bird nozzle bar 6 of this embodiment is provided with an arc arm 18, the end of the arc arm 18 is provided with a horizontally arranged fixed column 19, a threaded hole 20 is formed in the fixed column 19, and the lower end of the adjusting rod 7 is screwed into the threaded hole 20. The arc-shaped arm 18 can effectively avoid the shaft sleeve seat 5, prevents the front part of the bird mouth bar 6 from interfering with the shaft sleeve seat 5 during swinging, and ensures the normal transmission of the whole machine.

Further, the adjusting lever 7 of the present embodiment is a hand-screwed bolt, and a nut 21 is attached to the hand-screwed bolt and located at the upper end of the screw hole 20. The hand is twisted up and down to twist and stretch out and draw back, just can adjust the flexible length that pole 7 top touched transmission shaft 12, and then adjusts the swing range of taking-up arm 14 front end, and above-mentioned structure makes things convenient for the flexible regulation of adjusting pole 7, and then makes things convenient for actual debugging, or maintenance, makes things convenient for the user actual use.

Further, a positioning groove 22 communicated with the threaded hole 20 is formed in the bottom surface of the fixing column 19 in the embodiment, a movable jacking block 23 is mounted in the positioning groove 22, a spherical surface portion 24 is arranged at the lower end of the jacking block 23, the spherical surface portion 24 is propped against the top surface of the transmission shaft 12, and the upper end of the jacking block 23 is propped against the lower end of the adjusting rod 7. The spherical surface part 24 is in contact with the transmission shaft 12, so that the contact area between the fixing column 19 and the transmission shaft 12 is effectively reduced, friction force is reduced, and meanwhile, the fixing column 19 can be in contact with the transmission shaft 12 freely up and down in a point contact manner, so that the stability of transmission is ensured.

Further, the rear part of the bird's beak lever 6 of this embodiment is provided with a receiving slot 26, the first rotating wheel 8 is pivotally connected in the receiving slot 26, and the outer surface of the bird's beak lever 6 is provided with an oil filling hole 27 communicating with the receiving slot 26. The oil drip maintenance and the maintenance of the peripheral side surface of the first rotating wheel 8 in the accommodating groove 26 are facilitated for a user through the oil filling hole 27, the bar friction force during operation is reduced, and further the high operation of the Gao Zhengdi rotating wheel 8 is facilitated for the user to operate and maintain; meanwhile, the structure can ensure that the first rotating wheel 8 stably rotates in the accommodating groove 26, and ensure the stability of the whole machine transmission.

Further, bosses 25 are provided on the beak lever 6 of this embodiment at both ends of the aperture of the through hole 15. When the bird nozzle bar 6 is connected to the frame 1 in a shaft way, the boss 25 is in contact with the frame 1, so that two ends of the bird nozzle bar 6 are suspended, the contact area between the bird nozzle bar 6 and the frame 1 is effectively reduced, friction and noise when the bird nozzle bar 6 swings are reduced, and high-speed operation of the whole machine is ensured.

Further, the bird nozzle bar 6 of the present embodiment is integrally cast from cast iron or cast steel or cast aluminum material. The casting process can manufacture parts or blanks with complex sizes and shapes, the outline size of the parts or blanks can be as small as a few millimeters, the outline size of the parts or blanks can be as large as tens of meters, the weight of the parts or blanks can be as small as a few grams, the parts or blanks can be as large as hundreds of tons, the parts or blanks have the simplest shapes such as flat plates, cylinders and the like, and castings with complex inner cavities such as cylinder blocks and the like; the shapes and the sizes of the castings and the machine parts can be closest to each other, particularly, precision casting is realized, so that the cutting allowance can be reduced to the minimum, the consumption of metal materials is reduced, and the working time of processing is saved; the casting method has strong adaptability, and can cast various alloys, such as: copper alloy, aluminum alloy, magnesium alloy, cast steel, cast iron and the like; casting is the only workblank manufacturing method for brittle metals, such as cast iron and the like. Casting is suitable for both single-piece small-batch production and mass production; the equipment investment is low, the casting cost is low, the raw material sources are wide, the price is low, the casting, riser and waste casting of metal waste can be directly melted and used again, in addition, in most cases, huge production preparation work is not needed, the production period is short, so that the cast bird nozzle rod 6 has a plurality of advantages, and the cast bird nozzle rod 6 is preferably produced by adopting a casting process, and meanwhile, the manufacturing material of the specific bird nozzle rod 6 is not particularly limited in the embodiment; at the same time, the structural strength of the cast part is also increased.

Further, the first runner 8 and the second runner 11 of the present embodiment are bearings. Bearings are an important component in contemporary mechanical devices. The main functions of the device are to support the mechanical rotator, reduce the friction coefficient in the motion process and ensure the rotation precision, so that the first rotating wheel 8 and the second rotating wheel 11 can effectively reduce the motion friction force between one end of the bird nozzle rod 6 and one end of the balance arm 4 and the cam 9 by adopting bearings, ensure the high speed and accuracy of transmission, reduce the maintenance of users and prolong the service life of the whole machine.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims

1. An arm subassembly is chewed to bird of linking machine, its characterized in that: the sewing machine comprises a frame, a bird nozzle arm assembly arranged on the frame, a main shaft for providing rotary torque, a balance arm connected with the main shaft, and a shaft sleeve seat, wherein the bird nozzle arm assembly comprises a bird nozzle rod, an adjusting rod and a first rotating wheel, the main shaft is provided with a cam, the bird nozzle rod is connected with the frame, the first rotating wheel is connected with one end of the bird nozzle rod, the adjusting rod is arranged at the other end of the bird nozzle rod and can adjust the extending length of the lower end of the bird nozzle rod, the first rotating wheel is attached to the cam, a spring is connected between one end of the balance arm and a frame of the linking machine, the other end of the balance arm is connected with a second rotating wheel in a shaft way, the second rotating wheel is attached to a cam, a telescopic transmission shaft is installed on a shaft sleeve seat, a cantilever support is arranged at the lower end of the shaft sleeve seat, a thread taking-up arm is connected on the upper shaft of the cantilever support, a spring is connected between the rear end of the thread taking-up arm and the cantilever support, the lower end of the transmission shaft is propped against the rear end of the thread taking-up arm, and the lower end of the adjusting rod is propped against the upper end face of the transmission shaft; when the cam rotates, the bird nozzle rod drives the front end of the thread taking-up arm to swing up and down through the transmission shaft.

2. The bird's beak arm assembly of a stitcher as defined in claim 1 wherein: the middle part of the bird mouth bar is provided with a through hole, the frame is provided with a fixed shaft, the bird mouth bar is sleeved and installed on the fixed shaft through the through hole, and the top end of the bird mouth bar is provided with an oil injection groove communicated with the through hole.

3. The bird's beak arm assembly of a stitcher as defined in claim 2 wherein: the front portion of bird mouth pole is provided with the arc arm, the end of arc arm is provided with the fixed column of horizontal arrangement, threaded hole has been seted up on the fixed column, the lower extreme of adjusting the pole is twisted and is installed at threaded hole.

4. A stitcher bird nozzle arm assembly as set forth in claim 3 wherein: the adjusting rod is a hand-screwed bolt, and a nut is arranged at the upper end of the hand-screwed bolt, which is positioned at the threaded hole.

5. A stitcher bird nozzle arm assembly as set forth in claim 3 wherein: the positioning groove communicated with the threaded hole is formed in the bottom surface of the fixing column, the movable ejector block is installed in the positioning groove, the spherical surface portion is arranged at the lower end of the ejector block, the spherical surface portion is in contact with the top surface of the transmission shaft in a propping mode, and the upper end of the ejector block is in contact with the lower end of the adjusting rod in a propping mode.

6. The bird's beak arm assembly of a stitcher as defined in claim 1 wherein: the rear part of the bird nozzle rod is provided with a containing groove, the first rotating shaft is connected in the containing groove, and the outer surface of the bird nozzle rod is provided with an oil filling hole communicated with the containing groove.

7. The bird's beak arm assembly of a stitcher as defined in claim 1 wherein: bosses are arranged at two ends of the orifice of the through hole on the bird nozzle rod.

8. The bird's beak arm assembly of a stitcher as defined in claim 1 wherein: the bird nozzle rod is integrally cast by cast iron or cast steel or cast aluminum materials.

9. The bird's beak arm assembly of a stitcher as defined in claim 1 wherein: the first rotating wheel and the second rotating wheel are bearings.