Limiting check ring of needle bar rotating sewing machine and sewing machine
The utility model relates to a limit retainer ring of a needle bar rotary sewing machine and the sewing machine, which comprise a ring body provided with a center hole matched with a needle bar, and are characterized in that teeth matched with a gear are arranged on the outer side surface of the rin...
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| Main Author | |
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| Format | Patent |
| Language | Chinese English |
| Published |
26.07.2024
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| Subjects | |
| Online Access | Get full text |
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| Summary: | The utility model relates to a limit retainer ring of a needle bar rotary sewing machine and the sewing machine, which comprise a ring body provided with a center hole matched with a needle bar, and are characterized in that teeth matched with a gear are arranged on the outer side surface of the ring body, the teeth are straight teeth, the ring body is provided with at least two connecting holes, one end of each connecting hole is communicated with the center hole, and the other end of each connecting hole is communicated with the needle bar. The other end of the connecting hole penetrates through the outer side surface of the ring body; the limiting check ring can be installed on the needle rod more firmly so that torque can be transmitted to the needle rod through the limiting check ring, the requirement for driving the needle rod to rotate can be met, friction between the needle rod and a rotation driving module can be prevented, and therefore the fatigue resistance strength of the needle rod can be effect |
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| Bibliography: | Application Number: CN202322444903U |