7results about How to "Guaranteed sewing quality" patented technology

The utility model relates to the technical field of paper bottom locking type sewing equipment, in particular to a bottom locking type back wrapping sewing machine which comprises a feeding platform, a sewing machine and a thread feeding and cutting machine are installed on the feeding platform, a pressing mechanism is installed at one end of the feeding platform, a back strip compacting wheel is installed in the middle of the pressing mechanism, and a back strip is arranged on the back strip compacting wheel. A back strip conveying wheel and a gluing groove are arranged on the lower portion of the pressing mechanism, an adjustable limiting assembly is installed at one end of the back strip pressing wheel, and a stacking platform is installed below the adjustable limiting assembly. The bottom lock type back wrapping sewing machine is simple in structure and convenient to operate, the production process is smoother, manual intervention is reduced, the downtime is shortened, and therefore the overall production efficiency is improved. The equipment has excellent adaptability and can be flexibly adjusted according to the thicknesses and sizes of different pieces of paper, accurate pressing force control is achieved through the pressing mechanism, and the sewing precision and the product quality are ensured.

The utility model discloses a sewing mechanism and a sewing machine, and relates to the technical field of sewing machines. The needle comprises a needle rod and a cold air piece which are both arranged on the sewing machine, an air inlet cavity is formed in the needle rod, the cold air piece is communicated with the air inlet cavity and used for conveying cold air into the needle rod, a machine needle is arranged on the needle rod, a thread hole and an air inlet hole which are communicated are formed in the machine needle, and the air inlet hole is communicated with the air inlet cavity. A traditional heat dissipation mode is abandoned, during use, cold air is conveyed into the air inlet cavity through the cold air piece, then the cold air enters the air inlet hole and is exhausted through the thread hole, when the cold air circulates in the air inlet hole, the temperature of a machine needle can be reduced from inside to outside, the cooling effect is achieved, sewing threads are prevented from being burnt out, the sewing quality is guaranteed, and the use environment is clean; therefore, the practicability is higher.

The utility model discloses a cutting and cloth pressing mechanism for a pocket opening machine, which comprises a base component, an external pressing component and an internal pressing component, both the external pressing component and the internal pressing component are fixed on the base component, the external pressing component can realize the functions of opening, folding and pressing pocket cloth, and the internal pressing component can realize the fixation of the pocket cloth and cloth to be sewn. A first limiting assembly and a second limiting assembly in the outer pressing assembly are matched with a third limiting assembly to be meshed and driven by a gear and a rack, the position of a bag opening of a cloth bag is adjusted, and therefore the width and the length of the bag opening are set to be changed, and a modularized pressing block in the inner pressing assembly is formed by combining a plurality of different pressing blocks. Various shapes can be formed according to requirements, the quick switching requirements of multi-specification bag openings are met, and the production efficiency is improved.

The utility model discloses an edge cutter device which specifically comprises a bottom plate, a conveying motor, a conveying motor support, a cutter motor, a cutter motor support, a driving wheel, a driven wheel, a driven wheel support, a conveying ring belt, a throttling valve, a throttling valve support, an eccentric shaft, a connecting rod, a movable cutter and a fixed cutter. The conveying motor is connected with the conveying motor support and located on the side face of the conveying motor support. The cutter motor bracket is connected with the bottom plate; the conveying ring belt is sleeved on the driving wheel and the driven wheel; and the eccentric shaft is connected with a cutter motor. The edge cutter device overcomes the problems of poor consistency, low attractiveness and waste of raw materials caused by untidy clean edges on two sides of cloth in the automatic sewing process, can ensure that edges on two sides of the cloth are tidy and improve sewing stability, thereby ensuring sewing quality, and is wide in applicability and convenient to use. The automatic sewing machine can be applied to automatic sewing equipment for bed sheets, quilt covers, pillowcases and the like.

The application discloses a lining feeding device and a use method thereof, which comprises a lining feeding frame, a punching die and a punching cutter corresponding to the punching die are arranged on the lining feeding frame, a push plate connected with a transmission belt and capable of being driven to reciprocate is arranged above the punching die, a feeding roller is drivingly connected to the transmission belt, and a driven roller is installed on the lining feeding frame and is in clutch transmission cooperation with the feeding roller. The push plate and the feeding roller are driven by the shared transmission belt, so that the installation of the driving part is reduced, the structure of the equipment is more compact, meanwhile, the lining cloth is automatically pushed to a sewing station by the push plate, automatic, efficient and accurate feeding of the lining cloth is realized, and the subsequent sewing quality of the lining cloth is ensured.

The backstitch structure of the sewing machine comprises a workbench, two clamping blocks used for fixing cloth are arranged on the workbench in a sliding mode, a fixing plate is arranged on one side of any clamping block, a main transmission shaft is arranged on the fixing plate, a pressing frame is arranged on the main transmission shaft, and a reserved opening corresponding to the pressing frame is formed in the workbench. An auxiliary transmission shaft is arranged below the table top of the working table, a fixing seat is arranged at any short end of the bottom of the working table, a moving shaft and a connecting shaft are rotationally connected to the fixing seat, and the moving shaft and the connecting shaft are connected through two bevel gears which are meshed with each other. Under the action of the clamping blocks, it is guaranteed that the cloth does not deflect in the sewing process, and meanwhile the position, needing backstitching, of the cloth can be pressed under the action of the sliding wheels, so that the sewing quality of the cloth is guaranteed.

This utility model relates to the field of sewing machines and discloses a needle and thread guide device for a sewing machine, including a mounting base. The sewing machine is fixedly mounted on the upper surface of the mounting base, and a fixing plate and fixing rings are fixedly mounted on the sewing machine. Multiple fixing rings are equidistantly fixed to the fixing plate. Each fixing ring has a through groove on its outer wall, and two connecting blocks and a blocking device are symmetrically arranged on the inner side wall of each through groove, fixedly installed between every two connecting blocks. In this utility model, a handle flexibly controls the clamping force of the fixing plate on the thread spool. Pushing the handle helps stabilize the thread spool, while pulling the handle facilitates quick thread spool replacement, balancing sewing quality and efficiency. The blocking blocks, in conjunction with a torsion spring, achieve unidirectional guidance, flexibly rotating to guide the thread during threading, and quickly resetting to close the through groove after threading, improving manual threading efficiency and ensuring stable sewing operations.