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CN-224212923-U - Cloth tightening device of sewing machine

CN224212923UCN 224212923 UCN224212923 UCN 224212923UCN-224212923-U

Abstract

The utility model discloses a cloth tightening device of a sewing machine, and relates to the field of cloth tightening devices. The utility model comprises a tightening device and a sewing machine, wherein the tightening device comprises a first clamping table frame, a second clamping table frame, a third adjusting frame and a fifth adjusting frame, and the tightening device is convenient to install and detach, enhances the overall stability and avoids the occurrence of insufficient tension caused by downward deflection of a tensioning roller by arranging a reinforcing mechanism, a first mounting piece, a second mounting piece, a tightening block, a bolt hole, a hexagonal groove, a ball seat, a first screw rod, a threaded sleeve and a second screw rod.

Inventors

  • LI CE
  • LI SHUAI
  • Shu Jiaxuan
  • Pang Dingding

Assignees

  • 河北伟宸服装有限公司

Dates

Publication Date
20260508
Application Date
20250421

Claims (10)

  1. 1. The cloth tightening device of the sewing machine is characterized by comprising a tightening device (1) and the sewing machine (2), wherein the tightening device (1) comprises a first clamping table frame (101), a second clamping table frame (102), a third adjusting frame (108) and a fifth adjusting frame (111), reinforcing mechanisms (3) are arranged on two sides of the third adjusting frame (108) and the fifth adjusting frame (111), each reinforcing mechanism (3) comprises a first mounting piece (301) and a second mounting piece (302), the first mounting piece (301) is arranged on the third adjusting frame (108), and the second mounting piece (302) is arranged on the fifth adjusting frame (111); The first mounting piece (301) and the second mounting piece (302) are arranged in a U-shaped structure, the two sides of the first mounting piece (301) and the second mounting piece (302) are in threaded connection with the tightening blocks (303), bolt holes (304) are formed in the tightening blocks (303) in a penetrating mode, and hexagonal grooves (305) are formed in the outer sides of the bolt holes (304); The top of first installed part (301) and the bottom of second installed part (302) all are provided with ball seat (306), and two install first screw rod (307) and second screw rod (309) on ball seat (306), threaded sleeve (308) are connected between first screw rod (307) and second screw rod (309) in the spiro union.
  2. 2. The cloth tightening device of the sewing machine according to claim 1, wherein the tightening block (303) can be abutted against the third adjusting frame (108) and the fifth adjusting frame (111) after being tightened, and a fixing bolt is screwed in the bolt hole (304).
  3. 3. The cloth tightening device of the sewing machine according to claim 1, wherein a sixth adjusting frame (112) is rotatably connected to the top end of the fifth adjusting frame (111) through an adjusting bolt, and a threaded telescopic rod (115) is rotatably connected to one side of the sixth adjusting frame (112) through a rotating block (114).
  4. 4. The cloth clamping device of a sewing machine according to claim 3, wherein a rubber block is arranged at the bottom of the threaded telescopic rod (115) and is abutted against the sewing machine (2).
  5. 5. The cloth tightening device of the sewing machine of claim 1, wherein the sewing machine (2) comprises a workbench (201), the sewing machine (2) is arranged at the top of the workbench (201), the first clamping table frame (101) and the second clamping table frame (102) are respectively clamped at the front end and the rear end of the workbench (201), clamping bolts (103) are screwed at the bottoms of the first clamping table frame (101) and the second clamping table frame (102), and the clamping bolts (103) are used for fixing the first clamping table frame (101) and the second clamping table frame (102) on the workbench (201) after being tightened, and a machine body (202) is arranged at the top of the workbench (201).
  6. 6. The cloth tightening device of the sewing machine according to claim 1, wherein a mounting plate (104) is arranged at the top of the first clamping table frame (101), a first adjusting frame (105) is mounted on one side of the mounting plate (104) through an adjusting bolt, a first belt roller (106) is rotatably connected to one side of the first adjusting frame (105), and a second adjusting frame (107) is detachably connected to the top of the second clamping table frame (102) through a bolt.
  7. 7. The cloth tightening device of a sewing machine according to claim 6, wherein a fourth adjusting bracket (109) is rotatably connected to a lower side of one side of the second adjusting bracket (107) through an adjusting bolt, and a second belt roller (110) is rotatably connected to one side of the fourth adjusting bracket (109).
  8. 8. The cloth tightening device of a sewing machine according to claim 6, wherein a fifth adjusting bracket (111) is rotatably connected to one side upper side of the second adjusting bracket (107) through an adjusting bolt, and a sixth adjusting bracket (112) is provided to one side upper side of the fifth adjusting bracket (111).
  9. 9. The cloth tightening device of the sewing machine according to claim 8, wherein a third belt roller (113) is rotatably connected to one side of the sixth adjusting frame (112), and tightening belts (4) are sleeved among the third belt roller (113), the second belt roller (110) and the first belt roller (106).
  10. 10. The cloth clamping device of a sewing machine of claim 9, wherein the first belt roller (106) and the second belt roller (110) are clamping rollers and the third belt roller (113) is a tensioning roller.

Description

Cloth tightening device of sewing machine Technical Field The utility model relates to the field of cloth tightening devices, in particular to a cloth tightening device of a sewing machine. Background The utility model provides a sewing machine cloth props tight device is a very practical sewing machine annex, plays the key effect to promoting sewing quality and efficiency, and the device structure is exquisite, contains a plurality of regulating frames as basic part for installation and support other subassemblies, and the design is nimble, allows the user to adjust device's position and height according to the demand, with the cloth of adaptation different thickness and material, and three band pulley in the device constitutes stable triangle framework and supports, adopts wear-resisting material to make, ensures durability and the reliability of long-time use. At present, the current sewing machine cloth tightening device is through three band pulleys of a plurality of alignment brackets installation to ensure to prop tight area and can prop tight cloth, but because sewing machine can produce when using and rock, can lead to adjusting bolt to take place not hard up or displacement between the alignment brackets because the vibration just can lead to in long-term use, will at this moment lead to the fact the tensioning dynamics unstable even not hard up, and then influence the tight effect of propping up of cloth, probably lead to the cloth to appear shifting or fold in the sewing process, influence sewing quality and efficiency. Disclosure of utility model Based on the above, the utility model aims to provide a cloth tightening device of a sewing machine, which solves the technical problems that the prior device causes loosening or displacement of an adjusting bolt due to vibration, so that the tension is unstable, and the cloth tightening effect, the sewing quality and the sewing efficiency are affected. In order to achieve the aim, the cloth tightening device of the sewing machine comprises a tightening device and the sewing machine, wherein the tightening device comprises a first clamping table frame, a second clamping table frame, a third adjusting frame and a fifth adjusting frame, reinforcing mechanisms are arranged on two sides of the third adjusting frame and the fifth adjusting frame, each reinforcing mechanism comprises a first mounting piece and a second mounting piece, the first mounting piece is arranged on the third adjusting frame, and the second mounting piece is arranged on the fifth adjusting frame; The first mounting piece and the second mounting piece are both in U-shaped structure, the two sides of the first mounting piece and the second mounting piece are in threaded connection with a compression block, the compression block is provided with a through bolt hole, and the outer side of the bolt hole is provided with a hexagonal groove; The top of first installed part and the bottom of second installed part all are provided with the ball seat, and two install first screw rod and second screw rod on the ball seat, the spiro union has the screw sleeve between first screw rod and the second screw rod. Through adopting above-mentioned technical scheme, and prop up tight device and press from both sides the combination of table frame, second clamp table frame, third alignment jig and fifth alignment jig through first clamp, form stable bearing structure. The installation of the reinforcing mechanism further enhances the stability of the device and ensures the stable tightening of the cloth in the sewing process. Further, the pressing block can be abutted against the third adjusting frame and the fifth adjusting frame after being tightened, and a fixing bolt is screwed into the bolt hole. Through adopting above-mentioned technical scheme, fasten through the fixing bolt in the bolt hole, ensured the close connection between strengthening mechanism and the alignment jig, prevented to become flexible because of vibration or long-term use leads to, improved the stability and the reliability of device. Further, the top of fifth alignment jig is connected with the sixth alignment jig through adjusting bolt rotation, one side of sixth alignment jig is connected with the screw telescopic link through the turning block rotation. By adopting the technical scheme, the angle and the height of the device can be flexibly adjusted according to actual needs, the requirements of different sewing machines and work tables are met, and the applicability and the flexibility of the device are improved. Further, the bottom of screw thread telescopic link is provided with the rubber piece, and rubber piece and sewing machine looks butt. By adopting the technical scheme, the vibration generated in the working process of the sewing machine is effectively buffered, the influence of the vibration on the tightening device is prevented, the sewing machine is protected from direct collision and abrasion, and the service l