Sewing machine facilitating needle threading

Abstract

The sewing machine comprises a sewing machine body, the sewing machine body is provided with a machine needle and an outer shell, the sewing machine body further comprises a swing rod and a magnifying lens, the outer shell is concaved inwards to form a containing groove, a rotating shaft is fixed to one end of the swing rod, a rotating groove in interference fit with the rotating shaft is formed in the side wall of the bottom end of the containing groove, and the rotating shaft rotates on the rotating groove; the other end of the swing rod is fixedly connected with the magnifying lens, and when the swing rod rotates towards one side of the containing groove to be in a containing state, the swing rod and the magnifying lens are both located in the containing groove. And when the swing rod rotates towards one side far away from the storage groove to a use state, the magnifying lens directly faces the machine needle. When a thread penetrates through a hole in a machine needle, a worker can rotate the magnifying lens and the swing rod towards one side far away from the storage groove to a use state, so that the magnifying lens directly faces the machine needle, the magnifying lens has a magnifying effect on the thread and the hole in the machine needle, and the worker can be helped to better penetrate the thread through the hole in the machine needle.

Description

Technical Field

[0001] The utility model relates to the field of sewing equipment, in particular to a sewing machine which is convenient for threading a needle. Background Art

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material, so that one or more layers of sewing materials are interwoven or sewn together. A sewing machine can sew fabrics such as cotton, linen, silk, wool, and synthetic fibers, as well as products such as leather, plastic, and paper. The stitches are neat, beautiful, flat, and firm, and the sewing speed is fast and easy to use.

[0003] A patent application with publication number CN105113150B discloses a sewing machine, comprising a base plate and a casing, wherein a needle is provided on the casing, a lower shaft and a driving shaft are rotatably connected in the base plate, the end of the lower shaft is rotatably connected to a moving knife holder, a moving knife is fixedly connected to the moving knife holder, the driving shaft is transmission-connected to the moving knife holder and can drive the moving knife holder to rotate, a fixed knife is slidably connected to the base plate, a driving plate is also hinged on the base plate, a guide surface is circumferentially provided on the edge of the moving knife holder, a tensioning member is connected to the driving plate, and the distance between the guide surface and the axis centerline of the lower shaft gradually decreases from one end to the other end. When the moving knife holder rotates and moves the moving knife toward the fixed knife, the driving plate can make the fixed knife close to the needle.

[0004] During use, workers are required to pass the thread through the hole on the needle, but the hole on the needle is small. Sometimes the ambient brightness is not enough, or some workers' eyesight is not good enough. Therefore, it is inconvenient and time-consuming to pass the thread through the needle hole, which affects production efficiency. Utility Model Content

[0005] In order to facilitate workers to pass the thread through the hole on the needle, the present application provides a sewing machine that is convenient for threading the needle.

[0006] The present application provides a sewing machine that facilitates needle threading and adopts the following technical solution:

[0007] A sewing machine for convenient needle threading comprises a sewing machine body, wherein the sewing machine body has a machine needle and an outer shell, and also comprises a rocker arm and a magnifying glass. A storage groove is formed inwardly on the outer shell, a rotating shaft is fixed to one end of the rocker arm, a rotating groove which is interference fit with the rotating shaft is formed on the side wall at the bottom end of the storage groove, the rotating shaft rotates on the rotating groove, and the other end of the rocker arm is fixedly connected to the magnifying glass. When the rocker arm is rotated toward one side of the storage groove to a storage state, the rocker arm and the magnifying glass are both located in the storage groove; when the rocker arm is rotated toward the side away from the storage groove to a use state, the magnifying glass faces the machine needle.

[0008] By adopting the above technical solution, when passing the thread through the hole on the needle, the worker can rotate the magnifying glass and the rocker arm to the side away from the storage slot to the use state, so that the magnifying glass is facing the needle. The magnifying glass has a magnifying effect on the thread and the hole on the needle, which can help the worker better pass the thread through the hole on the needle.

[0009] Preferably, the magnifying glass includes a lens and an annular frame fixed on the outer periphery of the lens, an annular cavity for storing water is provided in the annular frame, a through hole and a water injection hole connected to the annular cavity are provided on the outer wall of the end of the annular frame away from the rocker arm, the water injection hole and the through hole are not connected to each other, a water-absorbing sponge is fixedly arranged in the annular cavity, the water-absorbing sponge blocks the through hole, and when there is no external force, the water in the annular cavity cannot flow out through the water-absorbing sponge; a plug is detachably connected to the water injection hole.

[0010] By adopting the above technical solution, when the magnifying glass is in use, the absorbent sponge is located at the bottom of the annular cavity, and the water in the annular cavity will soak the absorbent sponge. When the operator is threading the thread, he can stick the end of the thread to the absorbent sponge so that the end of the thread will be stained with water on the sponge. The originally uneven and smooth silk thread will stick together, making the thread end smooth and pointed, and better able to pass through the needle hole on the machine needle; the operator no longer needs to use saliva to wet the thread, which is more hygienic.

[0011] Preferably, the water-absorbing sponge has a protrusion, and the protrusion extends out of the through hole.

[0012] By adopting the above technical solution, this part of the protrusion can facilitate the operator to better contact the wire with the water-absorbing sponge, thereby facilitating the wetting of the wire.

[0013] Preferably, when the swing arm is rotated toward one side of the storage groove to a storage state, the water injection hole is located below the through hole and the water-absorbing sponge.

[0014] By adopting the above technical solution, after filling with water, the height position of the water injection hole is the highest water level line in the annular cavity, and the highest water level line is located below the water-absorbing sponge in the storage state, indicating that the water-absorbing sponge in the storage state will not be immersed in water. Since the water-absorbing sponge will continuously evaporate and absorb water in a cycle after contacting with water, the water-absorbing sponge in the storage state will no longer continue to absorb water, which can reduce the consumption of water in the annular cavity.

[0015] Preferably, a locking member is further included, and the locking member is used to completely lock the magnifying glass located in the storage slot.

[0016] Preferably, the locking member includes a slide groove, a locking block, a spring and a shift block, the slide groove is formed by a concave inner portion of the outer shell, the slide groove is located above the storage groove, the bottom end of the slide groove is connected to the storage groove, the locking block slides on the slide groove, the two ends of the spring are respectively arranged on the top wall of the slide groove and the locking block, the shift block is fixedly arranged on the locking block, the protrusion at the bottom end of the locking block is arranged in a hemispherical shape, and when there is no external force, the bottom end of the locking block is located on the storage path of the annular frame, and when the magnifying glass is in the storage state, the bottom end of the locking block abuts against the inner wall of the through hole and blocks the through hole.

[0017] By adopting the above technical solution, when the magnifying glass is stored after use, the annular frame will first abut against the bottom end of the locking block, driving the locking block to overcome the elastic force of the spring and move upward until the through hole moves to face the locking block, and the locking block moves downward to block the through hole under the elastic force of the spring, thereby completely locking the magnifying glass; when the magnifying glass needs to be used, the operator pushes the push block upward to disengage the locking block from the through hole, and turns the magnifying glass out to the use state.

[0018] Preferably, the side surface of the magnifying glass facing the needle when in use is the front side, and a plurality of LED lights are arranged in sequence along the circumferential direction on the front side of the annular frame.

[0019] By adopting the above technical solution, the bright light emitted by the LED lamp can improve the brightness of the threading environment, thereby helping operators to thread the wire better.

[0020] The technical effects of this utility model are mainly reflected in the following aspects:

[0021] 1. The utility model provides a magnifying glass, which has a magnifying effect on the thread and the hole on the machine needle, and can help workers better pass the thread through the hole on the machine needle;

[0022] 2. The utility model provides a water-absorbing sponge. When the magnifying glass is in use, the water-absorbing sponge is located at the bottom of the annular cavity. The water in the annular cavity will soak the water-absorbing sponge. When the operator is threading the thread, he can stick the end of the thread to the water-absorbing sponge to make the end of the thread stick to the water on the sponge. The originally uneven and smooth silk thread will stick together, making the thread end smooth and pointed, and better passing through the needle hole on the machine needle. The operator does not need to wet the thread with saliva, which is more hygienic. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the swing rod and the magnifying glass in the storage state according to the embodiment of the present application.

[0024] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0025] Figure 3It is a structural schematic diagram of the pendulum rod and the magnifying glass in the embodiment of the present application in use.

[0026] Figure 4 is a cross-sectional view of a magnifying glass.

[0027] Explanation of the reference numerals: 1. sewing machine body; 11. needle; 12. outer shell; 121. storage slot; 122. rotating slot; 2. rocker arm; 21. rotating shaft; 3. magnifying glass; 31. lens; 32. annular frame; 321. annular cavity; 322. through hole; 323. water injection hole; 324. plug; 33. absorbent sponge; 331. protrusion; 4. locking piece; 41. slide slot; 42. locking block; 43. spring; 44. shift block; 5. LED light. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-4 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0029] The embodiment of the present application discloses a sewing machine which is convenient for threading a needle.

[0030] Reference Figure 1-Figure 3 A sewing machine for convenient needle threading in this embodiment includes a sewing machine body 1, which has a needle 11, an outer shell 12, a swing arm 2 and a magnifying glass 3. A storage groove 121 is formed inwardly on the outer shell 12. A rotating shaft 21 is fixed to one end of the swing arm 2. A rotating groove 122 with an interference fit with the rotating shaft 21 is provided on the side wall at the bottom end of the storage groove 121. The rotating shaft 21 rotates on the rotating groove 122. The other end of the swing arm 2 is fixedly connected to the magnifying glass 3. When the swing arm 2 rotates toward the storage groove 121 to a storage state, the swing arm 2 and the magnifying glass 3 are both located in the storage groove 121. There is a gap between the storage groove 121 and the magnifying glass 3 for the hand to reach in. The operator can apply force on the magnifying glass 3 to move the magnifying glass 3 out of the storage groove 121. When the swing arm 2 rotates toward the side away from the storage groove 121 to a use state, the magnifying glass 3 faces the needle 11.

[0031] Reference Figure 1-Figure 3 When passing the thread through the hole on the needle 11, the worker can rotate the magnifying glass 3 and the rocker arm 2 to the side away from the storage groove 121 to the use state, so that the magnifying glass 3 is facing the needle 11. The magnifying glass 3 has a magnifying effect on the thread and the hole on the needle 11, which can help the worker to better pass the thread through the hole on the needle 11.

[0032] Reference Figure 2 and Figure 4The magnifying glass 3 includes a lens 31 and an annular frame 32 fixed to the outer periphery of the lens 31. An annular cavity 321 for storing water is provided in the annular frame 32. One end of the swing rod 2 away from the rotating shaft 21 is fixed to the annular frame 32. A through hole 322 and a water injection hole 323 communicating with the annular cavity 321 are provided on the outer wall of the end of the annular frame 32 away from the swing rod 2. The water injection hole 323 and the through hole 322 are not connected to each other. A plug 324 is threadedly connected to the water injection hole 323. A water-absorbing sponge 33 is fixedly arranged in the annular cavity 321. The water-absorbing sponge 33 blocks the through hole 322. When there is no external force, the water in the annular cavity 321 cannot flow out through the water-absorbing sponge 33.

[0033] Reference Figure 1-Figure 4 When the magnifying glass 3 is in use, the water-absorbing sponge 33 is located at the bottom of the annular cavity 321, and the water in the annular cavity 321 will soak the water-absorbing sponge 33. When the operator is threading, he can stick the end of the thread to the water-absorbing sponge 33, so that the end of the thread is stained with water on the sponge, and the originally uneven and smooth silk thread will stick together, making the thread end smooth and pointed, and better passing through the needle hole on the needle 11. The operator does not need to wet the thread with saliva, which is more hygienic.

[0034] Reference Figure 4 The water-absorbing sponge 33 has a protrusion 331, and the protrusion 331 extends out of the through hole 322. This part of the protrusion 331 extending out of the through hole 322 can facilitate the operator to better contact the wire with the water-absorbing sponge 33, so as to facilitate the wetting of the wire.

[0035] Reference Figure 1-Figure 4 When the swing arm 2 rotates toward the storage groove 121 to the storage state, the water injection hole 323 is located below the through hole 322 and the water-absorbing sponge 33. After being filled with water, the height of the water injection hole 323 is the highest water level in the annular cavity 321, and the highest water level is located below the water-absorbing sponge 33 in the storage state, indicating that the water-absorbing sponge 33 in the storage state will not be immersed in water. Since the water-absorbing sponge 33 will continue to evaporate and absorb water after contacting water, the water-absorbing sponge 33 in the storage state will not continue to absorb water, which can reduce the consumption of water in the annular cavity 321.

[0036] Reference Figure 2The present embodiment of a sewing machine for convenient needle threading further includes a locking member 4, which is used to completely lock the magnifying glass 3 located in the storage slot 121. The locking member 4 includes a slide slot 41, a locking block 42, a spring 43 and a shifting block 44. The slide slot 41 is formed by the inner concave portion of the outer shell 12. The slide slot 41 is located above the storage slot 121, and the bottom end of the slide slot 41 is connected to the storage slot 121. The locking block 42 slides on the slide slot 41 from the side close to the storage slot 121 to the side away from the storage slot 121. The two ends of the spring 43 are respectively fixed on the top wall of the slide slot 41 and the top surface of the locking block 42. One end of the shifting block 44 is fixed on the locking block 42, and the other end of the shifting block 44 extends outward for the operator to apply force. The protrusion 331 at the bottom end of the locking block 42 is set in a hemispherical shape. When there is no external force, the bottom end of the locking block 42 is located on the storage path of the annular frame 32; when the magnifying glass 3 is in the storage state, the bottom end of the locking block 42 abuts against the inner wall of the through hole 322 and blocks the through hole 322.

[0037] Reference Figure 2 When the magnifying glass 3 is stored after use, the annular frame 32 will first abut against the bottom end of the locking block 42, driving the locking block 42 to overcome the elastic force of the spring 43 and move upward until the through hole 322 moves to face the locking block 42. The locking block 42 moves downward to block the through hole 322 under the elastic force of the spring 43, thereby completely locking the magnifying glass 3. When the magnifying glass 3 needs to be used, the operator pushes the push block 44 upward to disengage the locking block 42 from the through hole 322, and then turns the magnifying glass 3 out to the use state.

[0038] Reference Figure 2 and Figure 4 After the locking block 42 locks the magnifying glass 3, the locking block 42 will simultaneously abut against the water-absorbing sponge 33, pressing the water on the water-absorbing sponge 33 back into the annular cavity 321. At the same time, since the locking block 42 blocks the through hole 322, the evaporation of water in the annular cavity 321 can be reduced.

[0039] Reference Figure 1 and Figure 2 The side of the magnifying glass 3 facing the needle 11 is the front side, and the front side of the annular frame 32 is provided with a plurality of LED lights 5 in sequence along the circumferential direction. The bright light emitted by the LED lights 5 can improve the brightness of the threading environment, thereby helping the operator to thread the thread better.

[0040] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A sewing machine for convenient needle threading, comprising a sewing machine body (1), wherein the sewing machine body (1) has a machine needle (11) and an outer shell (12), and characterized in that: It also comprises a swing rod (2) and a magnifying glass (3); a receiving groove (121) is formed inwardly on the outer shell (12); a rotating shaft (21) is fixed to one end of the swing rod (2); a rotating groove (122) which is interference fit with the rotating shaft (21) is provided on the side wall at the bottom end of the receiving groove (121); the rotating shaft (21) rotates on the rotating groove (122); the other end of the swing rod (2) is fixedly connected to the magnifying glass (3); when the swing rod (2) rotates toward one side of the receiving groove (121) to a receiving state, the swing rod (2) and the magnifying glass (3) are both located in the receiving groove (121); when the swing rod (2) rotates toward a side away from the receiving groove (121) to a use state, the magnifying glass (3) faces the machine needle (11).

2. A sewing machine for convenient needle threading according to claim 1, characterized in that: The magnifying glass (3) comprises a lens (31) and an annular frame (32) fixed on the outer periphery of the lens (31); an annular cavity (321) for storing water is provided in the annular frame (32); a through hole (322) and a water injection hole (323) communicating with the annular cavity (321) are provided on the outer wall of one end of the annular frame (32) away from the swing rod (2); the water injection hole (323) and the through hole (322) are not connected to each other; a water-absorbing sponge (33) is fixedly arranged in the annular cavity (321); the water-absorbing sponge (33) blocks the through hole (322); when no external force is applied, water in the annular cavity (321) cannot flow out through the water-absorbing sponge (33); and a plug (324) is detachably connected to the water injection hole (323).

3. A sewing machine for convenient needle threading according to claim 2, characterized in that: The water-absorbing sponge (33) has a protrusion (331), and the protrusion (331) extends out of the through hole (322).

4. A sewing machine for convenient needle threading according to claim 2, characterized in that: When the swing rod (2) rotates toward one side of the storage groove (121) to a storage state, the water injection hole (323) is located below the through hole (322) and the water-absorbing sponge (33).

5. A sewing machine for convenient needle threading according to claim 2, characterized in that: It also comprises a locking member (4), wherein the locking member (4) is used to completely lock the magnifying glass (3) located in the storage groove (121).

6. A sewing machine for convenient needle threading according to claim 5, characterized in that: The locking member (4) comprises a slide groove (41), a locking block (42), a spring (43) and a shifting block (44); the slide groove (41) is formed by being recessed in the outer shell (12); the slide groove (41) is located above the receiving groove (121); the bottom end of the slide groove (41) is connected to the receiving groove (121); the locking block (42) slides on the slide groove (41); the two ends of the spring (43) are respectively arranged on the top wall of the slide groove (41) and the locking block (42); the shifting block (44) is fixedly arranged on the locking block (42); the protrusion (331) at the bottom end of the locking block (42) is arranged in a hemispherical shape; when no external force is applied, the bottom end of the locking block (42) is located on the receiving path of the annular frame (32); when the magnifying glass (3) is in the receiving state, the bottom end of the locking block (42) abuts against the inner wall of the through hole (322) and blocks the through hole (322).

7. A sewing machine for convenient needle threading according to claim 2, characterized in that: The side surface of the magnifying glass (3) facing the machine needle (11) when in use is the front side, and a plurality of LED lights (5) are arranged in sequence along the circumferential direction on the front side of the annular frame (32).

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