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Middle presser foot device of sewing machine

A sewing machine, medium pressure technology, applied in the direction of sewing machine control devices, sewing machine components, program-controlled sewing machines, etc., can solve the problems of pressure frame damage, inability to pass through sutures, drop, etc., and achieve the effect of improving operability

Active Publication Date: 2006-04-12
JUKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the conventional intermediate presser device, after the power supply of the sewing machine is cut off, the intermediate presser is at a certain position where the intermediate presser is lowered to the position under the intermediate presser or stops at the retracted position of the intermediate presser.
In this way, there is the following problem: if the intermediate presser foot falls to the position under the intermediate presser foot, as a preparation for sewing, the intermediate presser foot will become an obstacle to the installation when the presser frame is installed, and it will contact the presser frame when it is lowered, causing the presser frame to damage
And there is also the following problem: if the intermediate presser foot is located at the intermediate presser foot retreat position, when adjusting the synchronization of the needle bar and the rotary hook to adjust the lifting of the needle bar where the organic needle is installed and the rotation of the rotary hook, the intermediate presser foot The needle bar cannot be lowered because it becomes an obstacle to the lowering of the needle bar, and the thread cannot pass through the needle

Method used

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  • Middle presser foot device of sewing machine
  • Middle presser foot device of sewing machine
  • Middle presser foot device of sewing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (Configuration of sewing machine)

[0040] Such as figure 1 Shown, the present invention has medium cloth pressing device 1 (referring to figure 2 ) of the sewing machine 100 has a holding mechanism 106 that clamps and holds the sewing product between the needle plate and the outer presser foot 104, and a conveying mechanism (not shown) that moves the holding mechanism 106 in the horizontal direction. The product moves in the horizontal direction relative to the needle 107 whose position is fixed in the horizontal plane, within a specified range (for example, inside the needle plate 101 and the outer presser foot 104, or by the holding mechanism 106 of the needle 107). At any position within the movable range of the conveying mechanism), stitches can be formed by sutures. Specifically, the sewing machine 100 is a cycle sewing machine capable of forming stitches in various shapes.

[0041] And, in the sewing machine 100, the holding mechanism 106 holds the outside of...

Embodiment 2

[0083] (The composition of the middle pressing device)

[0084] The cloth pressing device 1G in embodiment 2, such as figure 2 , Figure 10 , Figure 11 As shown, the movement control mechanism and the movement restriction mechanism of the first embodiment are replaced, and the intermediate presser 29 is controlled by the control device 90 . In addition, since the components other than the control device 90 are the same as those in the first embodiment, they are denoted by the same symbols and their descriptions are omitted.

[0085] Such as Figure 11 As shown, the control device 90 includes a CPU 91 that performs various processes, and a memory 92 as a storage means for storing programs and data.

[0086] A memory 92 is formed of a work area 93 for processing by the CPU 91 , a data area 94 for recording data for processing, and a program area 95 for storing programs for various operations in the middle cloth press device.

[0087] In the data area 94 , intermediate pre...

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 object of the present invention is to provide an inner presser device for sewing machine which can raise working efficiency after interrupting the power source of a sewing machine by selectively setting an inner presser retracting position or an inner presser lower position concerning the position of an inner presser after interrupting the power source of the sewing machine. The inner presser device for the sewing machine includes an inner presser to be vertically moved in synchronization with the vertical movement of a sewing needle so as to press a sewing material toward a needle plate when the sewing needle is pulled out from the sewing material. When the sewing material is pressed toward the needle plate in sewing and also an outer presser, which can be retracted to a prescribed position in the case of the power interruption of the sewing machine, is retracted at the prescribed position, the inner presser can be moved to one of the upper inner presser retracting position or the lower inner presser lower position when the power source is interrupted.

Description

technical field [0001] The invention relates to a middle cloth pressing device of a sewing machine. Background technique [0002] In the past, in sewing machines such as cycle sewing machines and embroidery sewing machines, which hold the cloth by a frame-shaped pressing device and transport the cloth in the XY direction for sewing, in order to prevent the cloth from being twisted due to the friction between the cloth and the needle when the needle is raised, Sewing confusion caused by rising with the needle, so set the middle cloth pressing device. [0003] This intermediate cloth pressing device has an intermediate presser which moves up and down following the up and down movement of a random needle in a state of being pressed downward by an elastic force. Usually, the lower end of the intermediate presser foot touches the fabric when the needle is lowered. At this time, the state of pressing the fabric is maintained by the elastic force without following the descent of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B29/02
CPCD05B19/16D05B29/02D05B29/08D05B57/38D05B69/10D05B69/30D05C9/20
Inventor 三须伸介
Owner JUKI CORP