A threading chassis device and a sewing machine
A technology of threading frame and bottom frame, which is applied in the direction of sewing machine components, sewing machine thread take-up device, sewing equipment, etc., which can solve the problems of inconvenient winding, large volume of threading frame, and low production efficiency, and achieve easy cleaning and winding wire, simplify the structure of the punching frame, and improve production efficiency
Active Publication Date: 2020-01-31
JACK SEWING MASCH CO LTD
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Problems solved by technology
The existing structures all have the following defects: the punching frame of the above-mentioned punching mechanism has a large volume and a complicated structure. No matter in the working state or the threading state, the punching cam is tightly blocked by the punching frame. Once there is a problem of winding in the middle of the punching cam or on both sides of the punching cam, it is very inconvenient to handle the winding and the production efficiency is low
Method used
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[0024] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.
[0025] Such as figure 1 As shown, the sewing machine includes a sewing machine casing 1 and a threading cam 9 with a threading groove. This wiring bottom frame device comprises the mounting base 2 that is used to be fixed on the sewing machine casing 1 and the wiring frame body 3 that has the wiring piece 3a and two wire passing pieces 3b, the middle part of the wiring frame body 3 has a Direction extends and can pass through the relief groove 3c of the wire-making cam 9. The wire-making piece 3a is located in the relief groove 3c and is opposite to the wire-making groove of the wire-making cam 9. The two wire-passing pieces 3b are respectively connected in the relief groove. Edges on both sides of the groove 3c.
[0026...
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The invention provides a thread winding bottom frame device and a sewing machine, and belongs to the technical field of sewing machines. The problems that an existing thread winding mechanism is inconvenient to use in winding, and production efficiency is low are solved. The thread winding bottom frame device comprises an installation base and a thread winding frame body, the thread winding frame body is provided with a thread winding piece and thread passing pieces, the installation base is provided with a long-strip-shaped sliding rail, the extending direction of the sliding rail is consistent with the length direction of the thread winding frame body, a slider is connected with the sliding rail in a sliding mode, one end of the thread winding frame body is hinged to one side of the slider, and the other end of the thread winding frame body can swing around a hinge point and be positioned on the installation base. According to the thread winding bottom frame device, the thread winding frame body is in sliding connection through cooperation of the slider and the sliding rail, the thread winding frame body can move outwards and expose out of a thread winding cam, an enough operation space is provided for an operator, winded threads are convenient to clean, the production efficiency is improved, and the thread winding frame body can move outwards so that threading can be convenient.
Description
technical field [0001] The invention belongs to the technical field of sewing machines, and relates to a threading chassis device and a sewing machine. Background technique [0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material to interweave or sew one or more layers of sewing material. The sewing machine can sew fabrics such as cotton, fiber crops, silk, wool, and artificial fibers, and products such as leather, plastics, and paper. [0003] Existing threading mechanism of sewing machine all is to be installed on the main shaft with the threading cam, and the threading frame is installed on the head housing, and the threading cam cooperates with the threading frame to complete the threading work. At present, the built-in threading frames of existing sewing machines in the market are all relatively large in size and complex in structure, which completely cover the threading cam inside. [0004] Such a...
Claims
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IPC IPC(8): D05B49/02
CPCD05B49/02
Inventor 邱丽龚甫华王恒
Owner JACK SEWING MASCH CO LTD