CN211112602U

CN211112602U - Sewing machine's rack construction

Info

Publication number: CN211112602U
Application number: CN201921770940.3U
Authority: CN
Inventors: 蔡炳清; 黄小青; 祝书伟; 李朝国
Original assignee: Jack Sewing Machine Co Ltd
Current assignee: Jack Technology Co Ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-07-28
Anticipated expiration: 2029-10-21

Abstract

The utility model provides a frame construction of sewing machine belongs to sewing machine accessory technical field, and it has solved current sewing machine's frame construction and has removed inconveniently, and technical problem such as stable inadequately in the working process. The frame structure of the sewing machine comprises supporting pipes which are arranged at intervals on two sides, wherein an upright post component is vertically and fixedly arranged on each supporting pipe, and a transverse mounting cross beam is fixedly arranged at the upper end of each upright post component; the both ends of every stay tube all slide to peg graft and have the telescopic link, and in the one end of telescopic link inserted the stay tube, the supporting legs subassembly that has the truckle was installed to the other end bottom, and rack construction still includes the drive assembly that the drive telescopic link removed along stay tube length direction. The middle frame structure of the utility model is convenient to move through the arrangement of the trundles; the structure is kept stable in the working process through the arrangement of the supporting leg assembly; the position of the roller is adjusted by the driving component, so that the table board of the sewing machine is prevented from jumping.

Description

Sewing machine's rack construction

Technical Field

The utility model belongs to the technical field of sewing machine accessories, a frame construction of sewing machine is related to.

Background

Sewing machines are generally provided with a corresponding frame structure. The bottom of the existing sewing machine frame is provided with four foot pads for supporting or four trundles for supporting. The four foot pads are used for supporting the whole machine, so that the machine has the advantages of low cost and stable structure, but has the defect of inconvenient movement. Because the machine is heavy, several people are needed to carry the machine together. The four casters are used for supporting the whole machine, so that the sewing machine has the advantages of convenience in moving and carrying, but has the defects of high cost and poor stability, and when the sewing machine is used, the machine can shake to influence the sewing effect.

Chinese patent (publication No. CN203923637U, publication No. 2014-11-05) discloses a sewing machine frame comprising: the supporting beam on two sides, the cross beam at the top of the supporting beam and connected with the sewing machine table are connected with a transverse plate and a pedal plate mounting frame between the two supporting beams, the pedal plate mounting frame is detachably connected with the lower part of the supporting beam, an upper connecting plate and a lower connecting plate are arranged on the inner side of the supporting beam, flanges are arranged at the upper end and the lower end of the transverse plate, two screws respectively penetrate through the flanges and the upper connecting plate and the lower connecting plate and are locked through nuts, and the transverse plate and the supporting beam are.

The sewing machine frame in the patent document is simple and reasonable, is firmly connected, is flat after being folded and is convenient to disassemble and assemble, and is widely applied to a sewing machine; however, the sewing machine frame is found to be inconvenient to move in the using process, and the table board arranged on the frame is easy to vibrate greatly, so that the stability of the frame is reduced.

Disclosure of Invention

The utility model discloses according to the above-mentioned problem that prior art exists, a frame structure of sewing machine is provided, the utility model aims to solve the technical problem that: how to improve the stability of the sewing machine frame and make it convenient to move.

The purpose of the utility model can be realized through the following technical scheme:

a frame structure of a sewing machine comprises supporting tubes arranged at two sides at intervals, and is characterized in that each supporting tube is vertically and fixedly provided with an upright post component, and the upper end of each upright post component is fixedly provided with a transverse installation beam; the two ends of each supporting tube are slidably inserted with telescopic rods, one end of each telescopic rod is inserted into each supporting tube, the bottom of the other end of each telescopic rod is provided with a supporting leg assembly with a caster, and the rack structure further comprises a driving assembly for driving the telescopic rods to move along the length direction of the supporting tubes.

The working principle is as follows: when the device is used, the height of the supporting leg assembly is adjusted according to the working requirement, so that the supporting leg assembly is higher than the caster wheel, and the sewing machine is in a stable state; when the sewing machine needs to be moved, the height of the supporting leg assembly can be adjusted to be lower than the caster, so that the sewing machine can be moved to a designated position; if the table of the sewing machine vibrates greatly, the driving component can be used for adjusting the position of the telescopic rod and adjusting the position relation between the casters at the same time, so that the table bounce is reduced.

The frame structure of the sewing machine can enable the frame to be stably placed through the arrangement of the supporting leg components; and the driving assembly is arranged to adjust the position relation between the casters, so that the bedplate can be prevented from jumping, the bedplate is stable in the working process, the device is convenient to move, and the bedplate can be conveniently used by operators.

In foretell sewing machine's rack construction, drive assembly is including can pivoted pivot and can drive pivot pivoted drive shaft, the both ends of pivot stretch into both sides respectively in the stay tube and both ends all set firmly the gear, every the telescopic link inserts the one end of stay tube all is equipped with the rack, inserts same two of stay tube on the telescopic link rack parallel interval downwards sets up just the rack all with the gear meshes mutually. The gear on the rotating shaft is meshed with the rack on the telescopic rod, so that the motion of the rotating shaft can be transmitted to the telescopic rod.

In the frame structure of the sewing machine, the two support tubes are arranged in parallel at intervals, the rotating shaft is perpendicular to the support tubes, the two rotating shafts are connected through a shaft sleeve, and two ends of the rotating shaft are axially limited and axially and rotatably connected to opposite side surfaces of the two support tubes; the gear is located in the supporting tube, and two racks in each supporting tube are oppositely arranged and are respectively arranged on the upper side and the lower side of the gear. The rotating shafts are connected through shaft sleeves, so that the structure is convenient to disassemble and assemble; the gear clamp in the rotating shaft is arranged between the two racks, and the structure can well transmit the motion of the gear to the racks, so that the effect of driving the telescopic rod to move by the rotating shaft is ensured.

In the above-mentioned frame structure of sewing machine, the drive shaft passes through the mount pad setting on the stand subassembly, be connected with driving motor or driving handle on the drive shaft, still set firmly the action wheel on the drive shaft, set firmly from the driving wheel in the pivot, the action wheel with be connected through driving belt between the follow driving wheel. The driving motor or the driving handle drives the driving shaft to rotate, meanwhile, the driving shaft drives the driving wheel to rotate, the motion of the driving wheel is transmitted to the driven wheel in east through the transmission belt, and the driven wheel is sleeved on the rotating shaft, so that power is provided for the motion of the rotating shaft.

In the frame structure of the sewing machine, the column assembly comprises a vertically arranged pipe sleeve and a column, the lower end of the pipe sleeve is fixed on the support pipe, the upper end of the pipe sleeve is provided with an opening, the lower end of the column is movably inserted into the pipe sleeve through the opening, the mounting cross beam is fixedly arranged at the upper end of the column, and a locking screw is further arranged between the pipe sleeve and the column. The pipe sleeve is movably connected with the upright post, so that the height of the upright post component can be adjusted according to actual conditions.

In the frame structure of the sewing machine, the mounting cross beam and the support pipes are arranged in parallel, a connecting plate for mounting a pedal plate is fixedly connected between the two support pipes, and a reinforcing longitudinal beam is fixedly connected between the two pipe sleeves. The stability of this structure has been guaranteed in the setting of installation crossbeam and reinforcing longeron.

In the above-mentioned frame structure of the sewing machine, the support tube and the telescopic rod are both square tubes, the rack located on the upper side is provided with a strip-shaped hole along the length direction thereof, and the support tube is provided with a limit screw inserted in the strip-shaped hole. The rack is provided with a strip-shaped hole, so that the rack can be conveniently meshed with the gear; set up stop screw, carry on spacingly to this rack, prevent to break away from the meshing or bump between two racks with the gear when the gear revolve.

In the above-mentioned frame structure of sewing machine, the supporting legs subassembly includes mounting bracket and foot cup, the truckle through rotating movable support rotatable coupling be in on the mounting bracket, it is located to rotate the support truckle one side is installed adjusting screw and lock nut, foot cup ball pivot is in adjusting screw's lower extreme. The rotating bracket is rotatably connected with the mounting rack, so that the caster can rotate 360 degrees, and the movement of the caster is facilitated; the foot cup is connected with the adjusting screw rod through a spherical hinge, so that the foot cup can be bent, and the device can be kept stable on uneven ground; the height of the adjusting screw rod can be adjusted by the adjusting nut, so that the height of the supporting leg assembly can be adjusted according to actual conditions.

Compared with the prior art, the novel support leg assembly with the trundles is used for realizing quick and efficient movement of the sewing machine, saving manpower and material resources and improving the working efficiency, and the foot cup connected by the spherical hinge has stronger adaptability to the ground so as to ensure that the frame is more stable; the caster wheel interval adjusting mechanism is simple in structure, the adaptability of the sewing machine frame is improved by adjusting the caster wheel interval, the most suitable caster wheel interval can be tested according to different machines, and the vibration of the table board is greatly improved.

Drawings

Fig. 1 is a schematic perspective view of a frame structure of the present sewing machine.

Fig. 2 is a partial perspective view of the frame structure of the sewing machine.

Fig. 3 is a perspective view of the foot supporting assembly in this configuration.

In the figure, 1, supporting tube; 2. a column assembly; 3. mounting a cross beam; 4. a telescopic rod; 5. a caster wheel; 6. a support leg assembly; 7. a drive assembly; 8. a rotating shaft; 8a, a shaft sleeve; 9. a drive shaft; 10. a gear; 11. a rack; 12. a mounting seat; 13. a driving wheel; 14. a driven wheel; 15. a drive belt; 16. pipe sleeve; 17. a column; 18. an opening; 19. locking the screw; 20. a connecting plate; 21. reinforcing the longitudinal beam; 22. a strip-shaped hole; 23. a limit screw; 24. a mounting frame; 25. a foot cup; 26. rotating the bracket; 27. adjusting the screw rod; 28. and locking the nut.

Detailed Description

As shown in fig. 1 and 2, the frame structure of the sewing machine comprises two spaced-apart supports

The device comprises supporting pipes 1, wherein each supporting pipe 1 is vertically and fixedly provided with an upright post component 2, and the upper end of each upright post component 2 is fixedly provided with a transverse installation crossbeam 3; the both ends of every stay tube 1 all slide to peg graft and have telescopic link 4, and in the one end of telescopic link 4 inserted the stay tube 1, the supporting legs subassembly 6 that has truckle 5 was installed to the other end bottom, and rack construction still includes the drive assembly 7 that drive telescopic link 4 removed along the length direction of stay tube 1. The driving assembly 7 comprises a rotating shaft 8 and a driving shaft 9, the rotating shaft 8 can rotate, the two ends of the rotating shaft 8 respectively extend into the supporting pipes 1 on the two sides, the two ends of the rotating shaft 10 are fixedly provided with gears 10, one end of each telescopic rod 4 inserted into the supporting pipe 1 is provided with a rack 11, and the racks 11 on the two telescopic rods 4 inserted into the same supporting pipe 1 are arranged at intervals in a downward parallel mode and are meshed with the gears 10. The two support tubes 1 are arranged in parallel at intervals, the rotating shafts 8 are perpendicular to the support tubes 1, the two rotating shafts 8 are connected through shaft sleeves 8a, and two ends of each rotating shaft 8 are axially limited and axially and rotatably connected to opposite side surfaces of the two support tubes 1; the gear 10 is located in the support pipes 1, and two racks 11 in each support pipe 1 are oppositely arranged and are respectively arranged at the upper side and the lower side of the gear 10. The driving shaft 9 is arranged on the upright post component 2 through the mounting seat 12, the driving shaft 9 is connected with a driving motor or a driving handle, the driving shaft 9 is further fixedly provided with a driving wheel 13, the rotating shaft 8 is fixedly provided with a driven wheel 14, and the driving wheel 13 is connected with the driven wheel 14 through a transmission belt 15. The supporting tube 1 and the telescopic rod 4 are square tubes, a strip-shaped hole 22 along the length direction of the supporting tube is formed in the rack 11 located on the upper side, and a limiting screw 23 inserted into the strip-shaped hole 22 is arranged on the supporting tube 1. When the table board of the sewing machine jumps, the driving shaft 9 can be driven, so that the driving wheel 13 rotates, the driving wheel is connected with the driving belt 15 to transmit the motion to the driven wheel 14 and the rotating shaft 8, the gear 10 on the rotating shaft 8 transmits the motion to the telescopic rod 4 through the meshing action of the gear and the telescopic rod 4, and the telescopic rod 4 is connected with the trundles 5, so that the trundles 5 are driven to move relatively, the table board jumps can be reduced, and the stable work of the sewing machine is kept.

Further, as shown in fig. 1, the column assembly 2 includes a vertically disposed pipe sleeve 16 and a column 17, a lower end of the pipe sleeve 16 is fixed on the support pipe 1, an upper end of the pipe sleeve 16 has an opening 18, a lower end of the column 17 is movably inserted into the pipe sleeve 16 through the opening 18, the mounting cross beam 3 is fixedly disposed at an upper end of the column 17, and a locking screw 19 is further disposed between the pipe sleeve 16 and the column 17. The mounting cross beam 3 and the support pipes 1 are arranged in parallel, a connecting plate 20 for mounting a pedal is fixedly connected between the two support pipes 1, and a reinforcing longitudinal beam 21 is fixedly connected between the two pipe sleeves 16. The height of the frame can be adjusted by adjusting the position relation between the pipe sleeve 16 and the upright post 17; the mounting cross beam connection 3 is connected with the support pipe 1, and the reinforcing longitudinal beam 21 is connected with the pipe sleeve 16, so that the frame structure is kept stable.

As shown in FIG. 3, the supporting foot assembly 6 comprises a mounting frame 24 and a foot cup 25, the caster 5 is rotatably connected to the mounting frame 24 through a rotating bracket 26, an adjusting screw 27 and a locking nut 28 are mounted on the rotating bracket 26 at one side of the caster 5, and the foot cup 25 is fixedly connected to the lower end of the adjusting screw 27. The locking nut 28 is adjusted, so that the height of the adjusting screw 27 is changed, the foot cup 25 is higher than the caster 5, and the sewing machine can be kept to work stably; when the sewing machine needs to be moved, the locking nut 28 is adjusted to enable the height of the foot cup 25 to be lower than that of the caster 5, so that the sewing machine is convenient to move.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although more 1, support tube is used herein; 2. a column assembly; 3. mounting a cross beam; 4. a telescopic rod; 5. a caster wheel; 6. a support leg assembly; 7. a drive assembly; 8. a rotating shaft; 8a, a shaft sleeve; 9. a drive shaft; 10. a gear; 11. a rack; 12. a mounting seat; 13. a driving wheel; 14. a driven wheel; 15. a drive belt; 16. pipe sleeve; 17. a column; 18. an opening; 19. locking the screw; 20. a connecting plate; 21. reinforcing the longitudinal beam; 22. a strip-shaped hole; 23. a limit screw; 24. a mounting frame; 25. a foot cup; 26. rotating the bracket; 27. adjusting the screw rod; 28. lock nuts, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. A frame structure of a sewing machine comprises support pipes (1) arranged at two sides at intervals, and is characterized in that an upright post component (2) is fixedly arranged on each support pipe (1) vertically, and a transverse installation cross beam (3) is fixedly arranged at the upper end of each upright post component (2); the two ends of each supporting tube (1) are slidably inserted with telescopic rods (4), one end of each telescopic rod (4) is inserted into the supporting tube (1), the bottom of the other end of each supporting tube is provided with a supporting leg assembly (6) with a caster (5), and the rack structure further comprises a driving assembly (7) for driving the telescopic rods (4) to move along the length direction of the supporting tubes (1).

2. The frame structure of the sewing machine according to claim 1, characterized in that the driving assembly (7) comprises a rotatable rotating shaft (8) and a driving shaft (9) capable of driving the rotating shaft (8) to rotate, two ends of the rotating shaft (8) respectively extend into the supporting tubes (1) at two sides, gears (10) are fixedly arranged at two ends of the rotating shaft, a rack (11) is arranged at one end of each telescopic rod (4) inserted into the supporting tube (1), the racks (11) inserted into two telescopic rods (4) of the same supporting tube (1) are arranged in parallel at intervals downwards, and the racks (11) are engaged with the gears (10).

3. The frame structure of sewing machine according to claim 2, characterized in that two support tubes (1) are arranged in parallel at intervals, the rotating shaft (8) is perpendicular to the support tubes (1), two rotating shafts (8) are provided and connected with each other through a shaft sleeve (8a), and two ends of the rotating shaft (8) are axially limited and axially and rotatably connected with opposite side surfaces of the two support tubes (1); the gear (10) is positioned in the supporting pipes (1), and the two racks (11) in each supporting pipe (1) are oppositely arranged and are respectively arranged on the upper side and the lower side of the gear (10).

4. The frame structure of a sewing machine according to claim 3, characterized in that the driving shaft (9) is arranged on the column assembly (2) through a mounting seat (12), the driving shaft (9) is connected with a driving motor or a driving handle, the driving shaft (9) is further fixedly provided with a driving wheel (13), the rotating shaft (8) is fixedly provided with a driven wheel (14), and the driving wheel (13) and the driven wheel (14) are connected through a transmission belt (15).

5. Frame structure of a sewing machine according to claim 1 or 2 or 3 or 4, characterized in that the column assembly (2) comprises a vertically arranged pipe sleeve (16) and a column (17), the lower end of the pipe sleeve (16) is fixed on the support pipe (1), the upper end of the pipe sleeve (16) is provided with an opening (18), the lower end of the column (17) is movably inserted in the pipe sleeve (16) through the opening (18), the mounting beam (3) is fixedly arranged at the upper end of the column (17), and a locking screw (19) is further arranged between the pipe sleeve (16) and the column (17).

6. Sewing machine frame structure as in claim 5, characterized in that said mounting cross-member (3) and said support tubes (1) are arranged parallel to each other, a connecting plate (20) for mounting a footboard being fastened between two of said support tubes (1), and a reinforcing stringer (21) being fastened between two of said sleeves (16).

7. The frame structure of a sewing machine according to claim 2, characterized in that the support tube (1) and the telescopic rod (4) are square tubes, the rack (11) on the upper side is provided with a strip-shaped hole (22) along the length direction thereof, and the support tube (1) is provided with a limit screw (23) inserted in the strip-shaped hole (22).

8. Frame structure of a sewing machine according to claim 1, characterized in that the supporting foot assembly (6) comprises a mounting frame (24) and a foot cup (25), the caster (5) is rotatably connected to the mounting frame (24) by a rotating bracket (26), an adjusting screw (27) and a lock nut (28) are mounted on the rotating bracket (26) on one side of the caster (5), and the foot cup (25) is ball-hinged at the lower end of the adjusting screw (27).