Bottom line cutting device, sewing machine and control method thereof

A control method and technology for a sewing machine, which are applied to a ferrule mechanism for a sewing machine, a mechanism for cutting threads in a sewing machine, and sewing machine components, etc., can solve the problems of high labor cost, high time cost, etc.

Pending Publication Date: 2018-06-01
莱州远好机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned existing thread cutting methods often leave long thread ends on the fabric or clothes, which need to be manually trimmed with scissors, which consumes a lot of labor costs and a lot of time costs

Method used

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  • Bottom line cutting device, sewing machine and control method thereof
  • Bottom line cutting device, sewing machine and control method thereof
  • Bottom line cutting device, sewing machine and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0050] refer to Figure 1 to Figure 3 , the sewing machine 1 includes a machine head 11 and a machine base 12, the machine head 11 is arranged on the machine base 12, a vertical groove 111 is arranged on the machine head 11, a thread take-up rod is arranged in the groove 111, and a thread take-up rod is arranged at the bottom of the chute 111. Thread clamp 13 is arranged. The machine head 11 is also provided with a cloth presser 112 and a machine needle 114. The cloth presser 112 is provided with a needle position 113 through the through hole. The needle position is the space for the machine needle to run. Above, it is the upper needle position, the lowest running point of the machine needle is below the needle plate, which is the lower needle position, the needle moves back and forth between the upper needle position and the lower needle position for sewing, and the needle 114 is used to The needle position 113 of the cloth presser 112 moves back and forth. The machine head...

no. 2 example

[0078] The second embodiment is mainly to improve the cutting surface thread device 4, refer to Figure 14 to Figure 16 , The thread cutting device 4 includes a thread cutting device, a thread loosening device, a thread sweeping device and a support 41. The support 41 is arranged on the side of the sewing machine, and the thread releasing device in the above-mentioned embodiment is arranged on the support 41.

[0079] The wire-sweeping device is arranged on the bracket 41, and the wire-sweeping device includes a wire-sweeping driving device 43, a wire-sweeping bracket 421, a rotating bracket 423, a connecting bracket 424, a swinging bracket 425, a limiting bracket 426, an installation bracket 441 and a limiting column 444, The mounting bracket 441 is horizontally installed on the bracket 41, the bracket 41 is provided with an overhanging hinged part 411 on the lower side, and the wire sweeping drive device 43 is a rotating electromagnet, which is arranged on the mounting bracke...

no. 3 example

[0085] The third embodiment of the sewing machine mainly improves the bottom thread cutting device 5. The bottom thread cutting device 5 includes a bracket, a swing bracket 52, a connecting bracket 54 and a rotating electromagnet 51. The bracket includes a rotating bracket 55 and a bearing bracket 56. The rotating bracket and the bearing bracket and Same as above-mentioned embodiment, rotating electromagnet 51 drives swinging bracket 52 to rotate, and connecting bracket 54 is hinged between swinging bracket 52 and rotating bracket 55, is also provided with positioning column 53 on one side of swinging bracket 52, and positioning column 53 is used. Play a position-limiting effect on the swing bracket 52.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention provides a bottom line cutting device, a sewing machine and a control method thereof. The bottom line cutting device comprises a support, a line hooking device, a cutter and a line cutting driving device, wherein the line cutting driving device is hinged to the support and drives the support to rotate on a vertical surface; the cutter and the line hooking device are arranged on the support along the same peripheral direction; the line hooking device is arranged at an end of the support; the cutter is positioned in the middle of the support; a lead distance is reserved between theline hooking device and the cutter in the peripheral direction; and by arrangement of the rotating support, the cutter and the line hooking device are arranged on the support along the same peripheral direction, so that the line hooking device can hook a bottom line and pull the bottom line by a lead distance, and the bottom line is cut off by the cutter. The cutter can be a hot cutter, and can also be a common knife, an ultrasonic cutter, a microwave cutter and the like. For example, if the cutter is the hot cutter, an end of a thread residue can further be subjected to hot melting adhesion,and forking of the end of the thread residue is prevented.

Description

technical field [0001] The invention relates to the field of sewing machines, in particular to a bobbin thread cutting device, a sewing machine and a control method for the sewing machine. Background technique [0002] In the past, there was a sewing machine with a thread trimming device that cut off the upper thread and the lower thread connected with the processed cloth. Bottom line cut. [0003] However, the above-mentioned existing thread cutting methods often leave long thread ends on the cloth or clothes, which need to be manually trimmed with scissors, which consumes a lot of labor costs and also consumes a lot of time costs. Contents of the invention [0004] The first object of the present invention is to provide a bobbin thread cutting device with short thread ends and capable of preventing bird's nests. [0005] The second object of the present invention is to provide a sewing machine with shorter thread ends and bird's nest prevention. [0006] The third obj...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B65/00D05B65/06D05B27/02D05B57/14
CPCD05B27/02D05B57/14D05B65/00D05B65/006D05B65/06
Inventor 彭志强
Owner 莱州远好机械科技有限公司
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