Changing the Sleeve of Double Needle Roller Hook Shaft to Eccentric Sleeve Device
A sleeve device and rotary hook shaft technology, which is applied to sewing machine control devices, sewing machine components, textiles and papermaking, etc., can solve the problems of easy thread jumping, easy damage to the tip of the rotary hook, and low work efficiency
Inactive Publication Date: 2015-09-16
苏州驰行智能科技有限公司
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Problems solved by technology
[0002] There are various kinds of sewing equipment in the shoe industry, and the double-needle roller car is an important sewing equipment in the shoe industry. There are more and more styles of shoe materials. In sewing top layer leather, suede leather, microfiber, suede microfiber And other special materials..., it is easier to jump wires, break wires, and the tip of the hook is easy to damage, which leads to low work efficiency and inconvenience to the operator
Method used
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[0017] Refer to the manual for further detailed analysis, figure 1 The structural diagram of the hook shaft before the original double-needle roller car is improved, the upper sleeve and the lower sleeve are arranged with vertical holes, so that the left hook is 1.45mm forward and the right is 1.45mm backward, see image 3 The casing on the left side ① looks like a cylinder, height = 31mm, outer diameter = 31mm, and inner hole diameter = 20mm. However, the inner hole of the original casing is a vertical hole, which is now changed to an eccentric casing. After the principle layout and structure calculation, the result is: casing The center line of the round hole above the tube is 1.06mm forward, image 3 The casing on the left side ② has a cylindrical appearance, height = 15mm, outer diameter = 26mm, and inner hole diameter = 20mm. The inner hole of the original casing is a vertical hole, and now it is changed to an eccentric casing.
[0018] Figure 4 The casing on the righ...
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The invention relates to the field of double-needle roller pressers, in particular to a double-needle roller presser with a rotating shutter shaft sleeve replaced by an eccentric sleeve device. The double-needle roller presser is mainly characterized in that upper and lower sleeves of left and right rotating shutter shafts of a double-needle roller presser in the prior art are provided with vertical holes, left and right rotating shutters adopt the symmetry principle, the original sleeve is dismounted, the newly-invented eccentric sleeve is mounted, the left rotating shutter is close to the front by 1.45 mm, the right rotating shutter is close to the back by 1.45 mm, other structures are also affected after the eccentric sleeve is mounted, a figure attached to a specification indicates that positions marked with 5,6,7,8,9,10,11 and 12 need to be modified, the change is also analyzed in the specification, people familiar with the whole machine structure can clearly understand, the peak point of a rotating shutter tip running one circle is exactly aligned with a needle plane, the rotating shutter tip passes through the space aside a needle plate pin groove in a reasonable manner, the rotating shutter tip less causes abrasion, and the phenomenon of line jumping and breakage in the process of stitching high-difficulty special material is reduced. As the improved double-needle roller presser with the structure is provided, the operation efficiency is effectively improved, and convenience is brought to operators.
Description
technical field [0001] The invention relates to the field of a double-needle roller car, and in particular relates to an appropriate change in the structure of a double-needle hooking thread to achieve a more reasonable thread hooking. Background technique [0002] There are various kinds of sewing equipment in the shoe industry, and the double-needle roller car is an important sewing equipment in the shoe industry. There are more and more styles of shoe materials. In sewing top layer leather, suede leather, microfiber, suede microfiber And other special materials..., it is easier to skip wires, break wires, and the tip of the hook is easy to be damaged, which will cause low work efficiency and bring inconvenience to the operator. Contents of the invention [0003] The purpose of the invention is that the former two-needle roller car hook shaft sleeve is a vertical hole, which is now changed to an eccentric hook shaft sleeve, which can be used after calculation and testing...
Claims
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IPC IPC(8): D05B69/02D05B15/02
Inventor 吕荣淦
Owner 苏州驰行智能科技有限公司