Encoder dust cover and sewing machine motor

Abstract

The utility model provides an encoder dust cover and a sewing machine motor, the encoder dust cover is provided with an encoder and an encoder cover cap, the encoder cover cap covers the encoder, the encoder dust cover is characterized in that the encoder dust cover is further provided, the encoder and the encoder cover cap are fixed on a side edge encoder base of the motor, the encoder is located in the encoder cover cap, and the encoder cover cap is fixed on the motor. The dustproof cover is located on the outer side of the encoder cover cap, the dustproof cover is fixed to a motor output shaft of the motor, a gap is formed between the encoder cover cap and the dustproof cover, and the good dustproof technical effect is achieved; an annular groove is formed in the encoder base, the annular groove is formed in the side, close to the output shaft of the motor, of the interior of the encoder base, the dustproof ring is arranged on the other side of the motor, the dustproof ring is provided with a pasting face, and the dustproof ring is pasted to the body and plays a good dustproof role.

Description

Technical Field

[0001] This application discloses an encoder dust cover and a sewing machine motor, specifically relating to the field of sewing machine manufacturing technology. Background Technology

[0002] The drive of an industrial sewing machine relies on the operation of an electric motor, and the encoder of the motor is crucial for its stable operation.

[0003] Utility model patent publication number CN214177096U discloses a servo motor for a sewing machine, comprising an encoder, a motor cover, and a motor stator. The key feature is that the motor cover is fixed to the motor stator, and the encoder cover is fixed to a code disk mounting base on the motor cover. The motor cover also has a side cover portion, on which the encoder's reader head is mounted. The side cover portion is used to connect to the motor stator and has several clearance portions. This original design lacks a sealing device in the encoder cover, allowing dust to enter through the gap between the motor's output shaft and the encoder cover, affecting the normal transmission and reception of encoder signals. Utility Model Content

[0004] This application addresses the problem of poor dustproof performance of the aforementioned encoder cover by proposing an encoder dust cover, comprising an encoder and an encoder cover, the encoder cover covering the encoder. The key feature is that it also includes a dust cover. The encoder and encoder cover are fixed to the encoder base on the side of the motor, with the encoder located inside the encoder cover and the dust cover located outside the encoder cover. The dust cover is fixed to the motor output shaft of the motor, and a gap exists between the encoder cover and the dust cover, achieving a good dustproof effect.

[0005] Furthermore, the encoder cover is provided with a protrusion, which is circular and located in the V-shaped groove of the dust cover, with a gap between the protrusion and the V-shaped groove.

[0006] Furthermore, the dust cover is fixed to the motor output shaft with several screws.

[0007] Furthermore, the encoder has a code disk, a read head, and a code disk base. The code disk rotates with the motor. The read head is used to read the code disk and is fixed on the code disk base. The code disk base is fixed on the encoder base on the side of the motor. The encoder cover covers the code disk, the read head, and the code disk base. A dust cover is set on the outside of the encoder cover and is not connected to the encoder cover.

[0008] It also advocates for the protection of a sewing machine motor that includes and uses the encoder dust cover described in any of the four paragraphs above.

[0009] The encoder base has an annular groove inside, which is located on the side of the encoder base near the motor output shaft.

[0010] A dustproof ring is located on the other side of the motor. The dustproof ring has an adhesive surface and is attached to the main body.

[0011] The advantages of this application are that a dust cover is set on the outside of the encoder cover, and an annular groove structure is added to the encoder base to facilitate the collection of dust that may exist inside the motor; a circular protrusion is added to the outside of the encoder cover, which works in conjunction with the V-shaped groove of the dust cover fixed on the motor output shaft, and the dust ring on the other side of the motor passes through the motor output shaft and is pasted on the motor body, which plays a very good role in dust prevention. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the appearance of an encoder dust cover and a sewing machine motor according to this application;

[0013] Figure 2 This is a structural cross-sectional view of an encoder dust cover and a sewing machine motor according to this application.

[0014] The attached figures are labeled as follows: motor 10, motor output shaft 11, encoder base 12, motor body 13, encoder cover 20, protrusion 21, dust cover 30, through hole 31, V-groove 32, encoder 40, code disk 41, read head 42, code disk base 43, dust ring 50. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1-2 The preferred embodiments of this application are described in detail so that the advantages and features of this application can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of this application. These embodiments are only used to illustrate the present invention and are not intended to limit the present invention.

[0016] This application discloses a sewing machine motor that is mounted and fixed on a sewing machine to drive the sewing machine's main shaft. The motor 10 has a motor output shaft 11, an encoder base 12, and a motor body 13. The encoder base 12 is fixed to the side of the motor 10. An encoder 40 and an encoder cover 20 are fixed on the encoder base 12. The encoder 40 is located inside the encoder cover 20, which is fixed to the encoder base 12 on the side of the motor 10 with several screws.

[0017] The encoder dust cover 30 is located outside the encoder cover 20, with a gap between the encoder cover 20 and the dust cover 30. The dust cover 30 is fixed to the motor output shaft 11 of the motor 10, specifically with several screws. When the motor 10 is driven, the dust cover 30 rotates along with the motor output shaft 11. Because the gap between the encoder cover 20 and the dust cover 30 is small, and the gap between the dust cover 30 and the motor output shaft 11 is almost negligible, the dust cover 30 provides excellent dust protection whether the motor 10 is running or stationary.

[0018] The encoder base 12 has an annular groove 121 inside. The annular groove 121 is located inside the encoder base 12 on the side close to the motor output shaft 11. The annular groove 121 is conducive to collecting dust from the motor 10.

[0019] The encoder 40 has a code disk 41, a read head 42, and a code disk base 43. The code disk 41 can rotate with the motor 10. The read head 42 is used to read the code disk 41 and is fixed on the code disk base 43. The code disk base 43 is fixed on the encoder base 12 on the side of the motor 10. The encoder cover 20 covers the code disk 41, the read head 42, and the code disk base 43. The dust cover 30 is set on the outside of the encoder cover 20 and is not connected to the encoder cover 20.

[0020] In addition, the encoder cover 20 is provided with a protrusion 21, which is circular and located in the V-groove 32 of the dust cover 30. A small gap is provided between the protrusion 21 and the V-groove 32. The arrangement of the protrusion 21 and the V-groove 32 has a good dustproof effect.

[0021] A dustproof ring 50 is provided on the other side of the motor 10. The dustproof ring 50 has an adhesive surface. The dustproof ring 50 passes through the motor output shaft 11 and is attached to the body 13. The dustproof ring 50 reduces the channel for dust to enter the motor 10 and has a certain dustproof effect.

[0022] The above description is only one of the preferred embodiments of this application and is not intended to limit the present invention, nor does it limit the scope of patent implementation of this application. Any equivalent structural or procedural transformations made using the shape, structure, and principle described in the specification and drawings of this application, or any direct or indirect application in other related technical fields; any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention are all included within the scope of patent protection of this application.

Claims

1. An encoder dust cover, comprising an encoder (40) and an encoder cover (20), the encoder cover (20) covering the encoder (40), characterized in that, It also has a dust cover (30), the encoder (40) and the encoder cover (20) are fixed on the encoder base (12) on the side of the motor (10), the encoder (40) is located inside the encoder cover (20), the dust cover (30) is located outside the encoder cover (20), the dust cover (30) is fixed on the motor output shaft (11) of the motor (10), and there is a gap between the encoder cover (20) and the dust cover (30).

2. The encoder dust cover according to claim 1, characterized in that, The encoder cover (20) is provided with a protrusion (21), which is circular and located in the V-groove (32) of the dust cover (30), with a gap between the protrusion (21) and the V-groove (32).

3. The encoder dust cover according to claim 1, characterized in that, The dust cover (30) is fixed to the motor output shaft (11) with several screws.

4. The encoder dust cover according to claim 1, characterized in that, The encoder (40) has a code disk (41), a read head (42) and a code disk base (43). The code disk (41) rotates with the motor (10). The read head (42) is used to read the code disk (41). The read head (42) is fixed on the code disk base (43). The code disk base (43) is fixed on the encoder base (12) on the side of the motor (10). The encoder cover (20) covers the code disk (41), the read head (42) and the code disk base (43). The dust cover (30) is set on the outside of the encoder cover (20). The dust cover (30) is not connected to the encoder cover (20).

5. A sewing machine motor, characterized in that, The encoder dust cover according to any one of claims 1 to 4 is applied.

6. A sewing machine motor according to claim 5, characterized in that, It also has an encoder base (12), the encoder base (12) having an annular groove (121) inside, the annular groove (121) being inside the encoder base (12) on the side near the motor output shaft (11).

7. A sewing machine motor according to claim 5, characterized in that, It also has a dustproof ring (50) which is located on the other side of the motor (10). The dustproof ring (50) has an adhesive surface and passes through the motor output shaft (11) and is attached to the body (13).

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