CN201151808Y - Clutch type manual driving device of sewing machine - Google Patents

Abstract

A clutch-type manual drive device for a sewing machine, characterized by comprising: a first clutch component, sleeved on the rotating shaft of the driving motor of the sewing machine, so as to link the rotating shaft of the driving motor to rotate; a second clutch component, including a shaft rod, slidably sleeved in a shaft hole, a meshing disc connected to the first end of the shaft rod, so as to correspondingly mesh with the first clutch component, and a handle connected to the second end of the shaft rod; a spring component, which pushes the meshing disc of the second clutch component away from the first clutch component at normal times, and prevents the two from being linked to each other. The utility model avoids injuries, reduces the load of the driving motor, and makes the product more energy-saving.

Description

Clutch-type manual drive for sewing machines

technical field

The utility model relates to a sewing machine, in particular to a clutch type manual driving device of the sewing machine which can avoid injury, reduce the load of a driving motor, and make the product more energy-saving.

Background technique

The sewing machine disclosed at present is usually driven by a drive motor to drive a driving shaft to link the lower needle, upper needle and other mechanisms such as tensioning of the sewing needle. Due to the high-speed movement during the sewing process, the If the suture is torn off or the sewing needle breaks, at this moment, it is necessary to adjust the position of the sewing needle by manually rotating the rotating shaft of the driving motor in a stopped state for the operator to perform work such as threading.

As shown in Fig. 5 and Fig. 6, the rotating shaft 21 device currently used to manually adjust the driving motor 20 of the sewing machine includes a housing 61, which is locked on one side of the driving motor 20, and on the housing 61, wears A shaft hole 611 is provided; a connecting shaft 62 is inserted in the shaft hole 611 of the casing 61, the first end 621 of the connecting shaft 62 is connected to the rotating shaft 21 of the drive motor 20, and the second end 622 A handle portion 623 is connected; the purpose of manually rotating the rotating shaft 21 of the driving motor 20 can be achieved by rotating the handle portion 623 . However, in the above-mentioned existing structure, the connecting shaft 62 is usually connected to the rotating shaft 21 of the driving motor 20, so when the sewing machine moves normally, the rotating shaft 21 of the driving motor 20 will still drive the connecting shaft 62 to rotate, even if it is exposed The handle portion 623 outside the housing 61 also rotates at high speed. In addition to the problems of twisted wires or injury to the operator, it also increases the load on the driving motor 20 when it is in motion, so there is a need for improvement.

Utility model content

The main technical problem to be solved by the utility model is to overcome the above-mentioned defects in the prior art, and provide a clutch-type manual driving device for sewing machines, so as to avoid injury, reduce the load on the driving motor, and make the product more economical. electricity.

The technical scheme that the utility model solves its technical problem adopts is:

A clutch-type manual driving device for a sewing machine, which is characterized in that it includes: a first clutch member, which is sleeved on the rotating shaft of the driving motor of the sewing machine, to drive the rotating shaft of the motor to rotate; the second clutch member includes a shaft rod, a sliding sleeve In a shaft hole, at the first end of the shaft, an engaging plate is connected to engage the first clutch member correspondingly, and a handle is connected to the second end of the shaft; The engaging plate of the second clutch member is kept away from the first clutch member, and the two are not linked with each other.

The aforementioned clutch-type manual driving device for sewing machines further includes a casing, which is locked at one end of the driving motor of the sewing machine, encloses the engaging discs of the first clutch member and the second clutch member, and is mounted on the casing. A shaft hole for a shaft sliding sleeve of the second clutch member is perforated.

The aforementioned clutch-type manual driving device for sewing machines further includes a casing, which is locked on the body of the sewing machine and surrounds the engagement discs of the first clutch member and the second clutch member. The shaft hole of the shaft rod sliding sleeve of the two clutch components.

In the aforementioned clutch-type manual drive device for sewing machines, the first clutch member contains a plurality of engagement grooves, and the engagement disc of the second clutch member is provided with a plurality of protruding pins, so that the second clutch member moves toward the second clutch member. After a clutch member approaches, the protruding pins are correspondingly inserted into the engagement grooves of the first clutch member, so that the second clutch member can rotate in conjunction with the first clutch member.

When the second clutch member is pressed and moved so that the engaging disc engages the first clutch member, the rotating shaft of the driving motor of the sewing machine can be linked to rotate by rotating the handle.

In the clutch-type manual driving device of the sewing machine of the present invention, the first and second clutch members used to drive the rotating shaft of the driving motor of the sewing machine are usually separated by the action of the spring member, that is, they are not linked with each other, so when the sewing machine When the driving motor starts to rotate, it does not drive the handle portion of the second clutch member exposed outside the casing to rotate, so as to avoid injury, reduce the load on the driving motor, and save power for the product.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a three-dimensional exploded schematic diagram of the utility model and a driving motor.

Fig. 2 is a three-dimensional schematic diagram of the utility model assembled with a driving motor.

Fig. 3 is a partial sectional view of part 3-3 shown in Fig. 2 .

Fig. 4 is a schematic view of the utility model in which the first and second clutch members are engaged with each other.

Fig. 5 is a schematic perspective view of a conventional manual adjustment drive motor device.

Fig. 6 is a partial sectional view of part 6-6 shown in Fig. 5 .

Explanation of symbols in the figure:

10 first clutch member 11 engagement groove 20 drive motor

21 Shaft 30 Second clutch member 31 Shaft

32 Engagement disc 321 Protruding pin 33 Handle

40 spring member 41 spring end 42 spring end

50 shell 51 shaft hole 61 shell

611 shaft hole 62 connecting shaft 621 first end

622 second end 623 handle

Detailed ways

Please refer to Fig. 1 to Fig. 4, the utility model relates to a clutch-type manual driving device of a sewing machine, comprising: a first clutch member 10, which is sleeved on the rotating shaft 21 of the driving motor 20 of the sewing machine, so as to drive the motor 20 in linkage The rotating shaft 21 rotates; the second clutch member 30 includes a shaft 31, which is slipped in a shaft hole 51, and an engaging disc 32 is connected to the first end of the shaft 31 to correspondingly engage the first The clutch member 10, and a handle portion 33 is connected to the second end of the shaft 31; the spring member 40 usually pushes the engagement disc 32 of the second clutch member 30 away from the first clutch member 10, and makes both Not linked with each other; when the second clutch member 30 is pushed to make its engagement plate 32 engage with the first clutch member 10, the rotating shaft 21 of the driving motor 20 of the sewing machine can be linked by rotating the handle portion 33 to rotate.

The clutch-type manual driving device of the sewing machine of the present utility model further includes a housing 50, which is locked at one end of the driving motor 20 of the sewing machine, surrounds the first clutch member 10 and the engaging disc 32 of the second clutch member 30, and The housing 50 is pierced with a shaft hole 51 through which the shaft 31 of the second clutch member 30 slides. The above-mentioned housing 50 can also be modified and locked on the body of the sewing machine.

The first clutch member 10 contains a plurality of engagement grooves 11, and the engagement plate 32 of the second clutch member 30 is provided with a plurality of protruding pins 321, so that the second clutch member 30 faces toward the first clutch member. After 10 approaches, each protruding pin 321 is inserted into the engagement groove 11 of the first clutch member 10 correspondingly, so that when the operator rotates the second clutch member 30 manually, the rotation of the first clutch member 10 can be synchronously linked. Of course, the utility model can also be modified to provide a plurality of protruding pins on the first clutch member 10, and to set a plurality of engagement grooves on the engagement disc 32 of the second clutch member 30. The utility model is not limited to the first clutch member 30. One and two clutch members 10, 30 are used for the corresponding structure of engagement.

As shown in Fig. 2 and Fig. 3, the spring member 40, its two spring ends 41, 42 are against the housing 50 and the handle portion 33 of the second clutch member 30, and the second clutch member 30 is moved toward The direction moving away from the first clutch member 10 makes the first and second clutch members 10, 30 not mesh with each other.

The first and second clutch members 10, 30 used to drive the rotating shaft 21 of the drive motor 20 of the sewing machine are separated due to the action of the spring member 40 at ordinary times, that is, they are not meshed and linked with each other, so when the drive motor 20 of the sewing machine starts When rotating, only the rotation of the first clutch member 10 will be linked, and the handle portion 33 exposed outside the housing 50 of the second clutch member 30 will not be driven to rotate. In addition to avoiding the twisting of sutures, cloth or injury, it can also reduce Drive the load of the motor 20 to make the product more energy-saving.

When using the utility model, when the user needs to correct the sewing machine or thread the needle, he can push the second clutch member 30 towards the direction of the first clutch member 10 in the stopped state, as shown in Figure 4 As shown, after the first and second clutch members 10, 30 are engaged with each other, the handle portion 33 of the second clutch member 30 can be rotated to jointly rotate the rotating shaft 21 of the driving motor 20 connected by the first clutch member 10, and then Make the sewing machine move slowly to carry out work such as threading. When the user is finished, as long as the user releases the handle portion 33, the second clutch member 30 can be moved away from the first clutch member by virtue of the elastic return of the spring member 40. 10, as shown in Figure 3, the first and second clutch members 10, 30 are separated and no longer engaged with each other. During the above operation, the operator does not need complicated operation steps, so the utility model is used in It is also very convenient to operate.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, All still belong to within the scope of the technical solution of the utility model.

In summary, the utility model fully meets the needs of industrial development in terms of structural design, practicability and cost-effectiveness, and the disclosed structure also has an unprecedented innovative structure, novelty, creativity and practicability, and meets the needs of industrial development. According to the requirements of the new patent requirements, the application is filed in accordance with the law.

Claims (4)

1. A clutch type manual drive unit of a sewing machine, characterized in that it comprises: The first clutch member is sleeved on the rotating shaft of the driving motor of the sewing machine, and rotates with the rotating shaft of the driving motor; The second clutch member includes a shaft, which is slipped in a shaft hole, and an engagement plate is connected to the first end of the shaft to engage the first clutch member correspondingly, and on the first end of the shaft. The two ends are connected to a handle; The spring member normally pushes the engagement plate of the second clutch member away from the first clutch member, and prevents the two from interlocking. 2. The clutch-type manual driving device of the sewing machine according to claim 1, characterized in that: it further includes a housing, which is locked at one end of the driving motor of the sewing machine, and the engagement disc of the first clutch member and the second clutch member Surrounded inside, and the casing is pierced with a shaft hole for the shaft sliding sleeve of the second clutch member. 3. The clutch-type manual driving device of the sewing machine according to claim 1, characterized in that: it further comprises a housing, which is locked on the body of the sewing machine, and surrounds the engaging discs of the first clutch member and the second clutch member, A shaft hole for a shaft sliding sleeve of the second clutch member is perforated on the housing. 4. The clutch-type manual driving device of the sewing machine according to claim 1, characterized in that: the first clutch member contains a plurality of engagement grooves, and the engagement disc of the second clutch member is protrudingly provided with a plurality of Protruding pins, after the second clutch member approaches the first clutch member, each protruding pin is correspondingly inserted into the engagement groove of the first clutch member.

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