CN211339954U

CN211339954U - Sewing machine that facilitates use is with automatic thread trimming mechanism

Info

Publication number: CN211339954U
Application number: CN201921547152.8U
Authority: CN
Inventors: 冯娟; 周庆
Original assignee: Dalian Sanyou Furniture Co ltd
Current assignee: Dalian Sanyou Furniture Co ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-08-25
Anticipated expiration: 2029-09-18

Abstract

The utility model discloses a sewing machine that facilitates use is with automatic thread trimming mechanism relates to sewing machine technical field, and it includes the support frame, the equal joint of the left and right sides face of support frame inner wall has the bearing, the pivot has been cup jointed in the bearing, and the one end fixed connection that two relative one ends of pivot were kept away from mutually with two screw thread posts respectively, and two screw thread post fixed connection, and the right-hand member of right side pivot and drive arrangement's output shaft fixed connection, drive arrangement fixed connection is at the right flank of support frame, screw thread post external screw thread connection has the screw cap. This automatic thread trimming mechanism for sewing machine that facilitates use, through micro motor, pivot, screw thread post, screw cap, connecting block, tailor mutually supporting between frame and the second round pin axle, and this device simple structure, the cost is lower, is fit for ordinary family and uses, and this device can also the snap-on sewing machine, loses and the condition that the short time can not be found when having avoided the use to made things convenient for the user to use.

Description

Sewing machine that facilitates use is with automatic thread trimming mechanism

Technical Field

The utility model relates to a sewing machine technical field specifically is an automatic thread trimming mechanism for sewing machine who facilitates use.

Background

After the sewing machine is used for sewing up clothes, scissors are often needed to be used for cutting short stitches, but due to the fact that the scissors are used in many places, the problem that the scissors cannot be found is often caused when the sewing machine is used, normal use of a user is affected, and the automatic thread cutting mechanism is also provided with some automatic thread cutting structures, but the structure is complex, the manufacturing cost is high, the automatic thread cutting mechanism is not suitable for being used in ordinary families, and therefore the automatic thread cutting mechanism is needed to be convenient to use and used for solving the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an automatic thread trimming mechanism for sewing machine that facilitates use has solved because the scissors can all be used in many places, so just often can appear finding the problem of scissors when using sewing machine to influence user's normal use, also have the structure of some automatic thread trimmers, but the structure is comparatively complicated, and the cost is higher, the unsuitable problem that ordinary family used.

(II) technical scheme

In order to achieve the above purpose, the utility model adopts the technical proposal that: the utility model provides a sewing machine that facilitates use is with automatic thread trimming mechanism, includes the support frame, the equal joint of the left and right sides face of support frame inner wall has the bearing, the pivot has been cup jointed in the bearing, and the one end fixed connection that two relative one ends of pivot were kept away from mutually with two screw thread posts respectively, and two screw thread post fixed connection, and the right-hand member of right side pivot and drive arrangement's output shaft fixed connection, drive arrangement fixed connection is at the right side face of support frame, screw thread post thread connection has the screw cap, the lower fixed surface of screw cap is connected with the connecting block, the first round pin axle of positive fixedly connected with of connecting block.

The utility model discloses a cutting frame, including support frame, first round pin axle, through-hole, extension rod, first round pin axle is located the through-hole, the through-hole is seted up in the front of cutting the frame, and two are cut the frame and are passed through same second round pin axle swing joint, second round pin axle fixed connection is in the front of support frame lower fixed surface's connecting rod, the back fixedly connected with extension rod of support frame, the extension rod cup joints in the sleeve, a plurality of draw-in groove has been seted up to the upper surface of extension rod, and is provided with first fixing device in one of them draw-in groove, first fixing device joint is at telescopic upper surface, sleeve fixed connection is in the front.

Preferably, the driving device comprises a micro motor, the micro motor is fixedly connected to the right side surface of the inner wall of the fixing plate, the left side surface of the fixing plate is fixedly connected to the right side surface of the supporting frame, and an output shaft of the micro motor is fixedly connected to the right end of the right rotating shaft.

Preferably, the first fixing device comprises a first bolt, the first bolt is located in the first clamping groove, the first bolt is in threaded connection with a first nut, and the first nut is clamped on the upper surface of the sleeve.

Preferably, the second fixing device comprises a second nut, the second nut is clamped on the right side face of the fixing frame, and a second bolt is connected to the second nut through an internal thread.

Preferably, the back fixedly connected with slider of screw cap, and two slider sliding connection are in same spout, the back at the support frame inner wall is seted up to the spout.

Preferably, the input end of the micro motor is electrically connected with the output end of the external switch through a wire, and the input end of the external switch is electrically connected with the output end of the external power supply through a wire.

Preferably, the left side face and the right side face of the second bolt are provided with anti-slip threads, the first pin shaft is externally connected with two limiting clamps in a clamping mode, and the two limiting clamps are located on the front face and the back face of the through hole respectively.

Preferably, the sliding groove and the sliding block are both T-shaped, and the thread directions of the two thread columns are opposite.

(III) advantageous effects

The beneficial effects of the utility model reside in that:

1. the automatic thread trimming mechanism for the sewing machine convenient to use is characterized in that the micro motor, the rotating shaft, the threaded columns, the threaded caps, the connecting blocks, the first pin shafts, the trimming frames and the second pin shafts are matched with each other, when thread trimming is needed, a user can control the micro motor to rotate forwards through the external switch, so that the micro motor can drive the two threaded columns to rotate forwards through the rotating shaft, the two threaded columns can be close to each other under the threaded connection effect of the two threaded caps, the two threaded caps can drive the top ends of the two trimming frames to be close to each other through the two connecting blocks and the two first pin shafts, the other ends of the two trimming frames can be close to each other under the effect of the second pin shaft and trim sewing threads, the automatic thread trimming mechanism is simple in structure and low in manufacturing cost, is suitable for being used in common families, and can be directly fixed on the sewing machine, and the situation that the sewing machine, thereby facilitating the use of the user.

2. This automatic thread trimming mechanism for sewing machine that facilitates use, through setting up second bolt and second nut, when needs fix the position of this device, the user can place the suitable position on the sewing machine body earlier with the mount, two second bolts of rethread screwing up are fixed the position of this device, and set up anti-skidding line outside the second bolt, thereby can increase the frictional force between sewing machine body and the second bolt, make the second bolt can be fixed more stable to this device.

3. This automatic thread trimming mechanism for sewing machine that facilitates use, through setting up the extension rod, sleeve and first fixing device, when needs are adjusted and are cut the line position, the user can twist right first bolt earlier, make first bolt can be under the threaded connection effect with first nut rebound and break away from the draw-in groove, make the user adjust two positions of tailorring the frame through the position that removes the extension rod, make the user can adjust the length of staying the line according to actual need, made things convenient for the user to use.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic diagram of the right-side cross-sectional structure of the present invention;

FIG. 3 is a schematic view of the rear view cross-sectional structure of the fixing frame of the present invention;

fig. 4 is an enlarged schematic structural diagram of a position a of the present invention.

In the figure: the cutting machine comprises a support frame 1, a bearing 2, a rotating shaft 3, a threaded column 4, a driving device 5, a micro motor 51, a fixing plate 52, a threaded cap 6, a connecting block 7, a first pin shaft 8, a through hole 9, a cutting frame 10, a second pin shaft 11, a connecting rod 12, a sliding block 13, a sliding groove 14, an extension rod 15, a sleeve 16, a clamping groove 17, a first fixing device 18, a first bolt 181, a first nut 182, a fixing frame 19, a second fixing device 20, a second nut 201 and a second bolt 202.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: an automatic thread trimming mechanism for a sewing machine convenient to use comprises a support frame 1, bearings 2 are clamped on the left side surface and the right side surface of the inner wall of the support frame 1, the bearings 2 are arranged, so that when a rotating shaft 3 drives a threaded column 4 to rotate, the two rotating shafts 3 can be driven to rotate in the two bearings 2 respectively, a supporting point can be provided for the rotation of the threaded column 4, the rotation of the threaded column 4 is more stable, the rotating shaft 3 is sleeved in the bearings 2, the opposite ends of the two rotating shafts 3 are fixedly connected with the ends, far away from the two threaded columns 4, the two threaded columns 4 are fixedly connected, the thread directions of the two threaded columns 4 are opposite, when the two threaded columns 4 rotate simultaneously, two thread caps 6 in threaded connection on the surfaces of the two threaded columns can be close to or far away from each other, and the right end of the right rotating shaft 3 is fixedly connected with an output shaft of, the driving device 5 comprises a micro motor 51, the micro motor 51 is fixedly connected to the right side of the inner wall of the fixing plate 52, the left side of the fixing plate 52 is fixedly connected with the right side of the support frame 1, the output shaft of the micro motor 51 is fixedly connected with the right end of the right rotating shaft 3, by arranging the micro motor 51, the micro motor 51 can provide power for the cutting work of the cutting frame 10, thereby facilitating the cutting of the thread ends of a user and the use of the user, the input end of the micro motor 51 is electrically connected with the output end of an external switch through a wire, the input end of the external switch is electrically connected with the output end of an external power supply through a wire, the micro motor 51 is controlled by arranging the external switch, so that the user can install the external switch at a proper position convenient to use, thereby better controlling the use of the device, the driving device 5 is, the external thread of the threaded column 4 is connected with a threaded cap 6, the back of the threaded cap 6 is fixedly connected with a slide block 13, and the two sliding blocks 13 are connected in the same sliding chute 14 in a sliding way, the sliding chute 14 is arranged on the back surface of the inner wall of the support frame 1, the sliding chute 14 and the sliding blocks 13 are both in a T shape, by arranging the sliding groove 14 and the sliding block 13, the situation that the threaded column 4 rotates to drive the threaded cap 6 to rotate together is avoided, the threaded column 4 can drive the sliding block 13 to move left and right in the sliding groove 14 while moving left and right, so that the left and right movement of the threaded column 4 is more stable, and the T-shaped design of the sliding block 13 and the sliding groove 14 can avoid the situation that the sliding block 13 is separated from the sliding groove 14 when moving in the sliding groove 14, normal cooperation between the sliding chute 14 and the sliding block 13 is ensured, the lower surface of the threaded cap 6 is fixedly connected with the connecting block 7, and the front surface of the connecting block 7 is fixedly connected with the first pin shaft 8.

The first pin shaft 8 is positioned in the through hole 9, the first pin shaft 8 is externally clamped with two limit clamps, the two limit clamps are respectively positioned on the front side and the back side of the through hole 9, the first pin shaft 8 is arranged, the two limit clamps are externally clamped with the first pin shaft 8 and are respectively positioned on the front side and the back side of the through hole 9, thereby avoiding the situation that the first pin shaft 8 slides out in the through hole 9, ensuring the normal matching work between the first pin shaft 8 and the through hole 9, the through hole 9 is arranged on the front side of the cutting frame 10, the two cutting frames 10 are movably connected through the same second pin shaft 11, the central points of the two cutting frames 10 can be fixed through arranging the second pin shaft 11, ensuring the normal operation of the cutting work, the second pin shaft 11 is fixedly connected on the front side of the connecting rod 12 fixedly connected with the lower surface of the supporting frame 1, the back side of the supporting frame 1 is fixedly connected with the extension rod, the extension rod 15 is sleeved in the sleeve 16, the positions of the two cutting frames 10 can be adjusted by a user according to actual conditions by arranging the extension rod 15 and the sleeve 16, the use of the user is facilitated, a plurality of clamping grooves 17 are formed in the upper surface of the extension rod 15, a first fixing device 18 is arranged in one clamping groove 17, the first fixing device 18 comprises a first bolt 181, the first bolt 181 is positioned in the first clamping groove 17, the first bolt 181 is in threaded connection with a first nut 182, the first nut 182 is clamped on the upper surface of the sleeve 16, the length of the extension rod 15 exposed out of the sleeve 16 can be fixed by arranging the first bolt 181 when the first bolt 181 is clamped in the first clamping groove 17, the problem that the use is influenced by the displacement of the extension rod 15 when the device is used for trimming is avoided, the first fixing device 18 is clamped on the upper surface of the sleeve 16, the sleeve 16 is fixedly connected on the front surface of the fixing frame 19, the left side and the right side of the fixed mount 19 are both connected with a second fixing device 20 in a clamping manner, the second fixing device 20 comprises a second nut 201, the second nut 201 is connected with the right side of the fixed mount 19 in a clamping manner, a second bolt 202 is connected with the second nut 201 in an internal thread manner, the second bolt 202 and the second nut 201 are arranged, so that the second bolt 202 can move leftwards under the effect of the threaded connection with the second nut 201 when rotating, the position of the device can be fixed, the situation that the device is lost and cannot be found in a short time when needing thread cutting is avoided, the use by a user is facilitated, the left side and the right side of the second bolt 202 are both provided with anti-slip grains, the friction force between a palm user and the second bolt 202 when the user rotates the second bolt 202 is increased through the left side and the right side of the second bolt 202, and the friction force between the second bolt 202 and a sewing machine body is also increased, the user can rotate the second bolt 202 more conveniently and more easily, the second bolt is not easy to slide, and the position of the device can be fixed more stably by the two second bolts 202.

The utility model discloses an operating procedure does:

s1, when the position of the device needs to be fixed, a user can firstly place the fixing frame 19 at a proper position on the sewing machine body, then the position of the device is fixed by screwing the two second bolts 202, when the trimming position needs to be adjusted, the user can firstly screw the first bolt 181 rightwards, so that the first bolt 181 can move upwards under the effect of the threaded connection with the first nut 182 and is separated from the clamping groove 17, the user can adjust the positions of the two cutting frames 10 by moving the position of the extension rod 15, and when the position is proper, the first bolt 181 is screwed leftwards;

s2, when trimming is needed, a user can control the micro motor 51 to rotate forward through the external switch, so that the micro motor 51 can drive the two threaded columns 4 to rotate forward through the rotating shaft 3, the two threaded columns 4 can approach each other under the threaded connection effect with the two threaded caps 6, the two threaded caps 6 can drive the top ends of the two trimming frames 10 to approach each other through the two connecting blocks 7 and the two first pin shafts 8, and the other ends of the two trimming frames 10 can approach each other under the effect of the second pin shafts 11 and trim the seam;

s3, when trimming is completed, a user can control the micro motor 51 to rotate reversely through the external switch, so that the micro motor 51 can drive the two threaded columns 4 to rotate reversely through the rotating shaft 3, the two threaded columns 4 can be kept away from each other under the threaded connection effect with the two threaded caps 6, the two threaded caps 6 can drive the two tops of the two trimming frames 10 to be kept away from each other through the two connecting blocks 7 and the two first pin shafts 8, and the other ends of the two trimming frames 10 can be kept away from each other and reset under the effect of the second pin shaft 11.

The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a sewing machine that facilitates use is with automatic thread trimming mechanism, includes support frame (1), its characterized in that: the left side surface and the right side surface of the inner wall of the support frame (1) are respectively clamped with a bearing (2), a rotating shaft (3) is sleeved in the bearing (2), one end, opposite to the two rotating shafts (3), of each rotating shaft is fixedly connected with one end, far away from the two threaded columns (4), of each threaded column (4), the two threaded columns (4) are fixedly connected, the right end of each rotating shaft (3) on the right side is fixedly connected with an output shaft of a driving device (5), the driving device (5) is fixedly connected to the right side surface of the support frame (1), the threaded columns (4) are in threaded connection with threaded caps (6), the lower surfaces of the threaded caps (6) are fixedly connected with connecting blocks (7), and the front surfaces of the connecting blocks (7);

the first pin shaft (8) is positioned in the through hole (9), the through hole (9) is arranged on the front surface of the cutting frame (10), the two cutting frames (10) are movably connected through the same second pin shaft (11), the second pin shaft (11) is fixedly connected with the front surface of a connecting rod (12) fixedly connected with the lower surface of the supporting frame (1), the back of the support frame (1) is fixedly connected with an extension rod (15), the extension rod (15) is sleeved in a sleeve (16), the upper surface of the extension rod (15) is provided with a plurality of clamping grooves (17), and a first fixing device (18) is arranged in one clamping groove (17), the first fixing device (18) is clamped on the upper surface of the sleeve (16), the sleeve (16) is fixedly connected to the front face of the fixing frame (19), and second fixing devices (20) are clamped on the left side face and the right side face of the fixing frame (19).

2. The automatic thread trimming mechanism for sewing machines convenient to use according to claim 1, characterized in that: drive arrangement (5) include micro motor (51), micro motor (51) fixed connection is in the right flank of fixed plate (52) inner wall, the right flank fixed connection of the left surface of fixed plate (52) and support frame (1), the right-hand member fixed connection of the output shaft and right side pivot (3) of micro motor (51).

3. The automatic thread trimming mechanism for sewing machines convenient to use according to claim 1, characterized in that: the first fixing device (18) comprises a first bolt (181), the first bolt (181) is located in the first clamping groove (17), the first bolt (181) is in threaded connection with a first nut (182), and the first nut (182) is clamped on the upper surface of the sleeve (16).

4. The automatic thread trimming mechanism for sewing machines convenient to use according to claim 1, characterized in that: the second fixing device (20) comprises a second nut (201), the second nut (201) is connected to the right side face of the fixing frame (19) in a clamped mode, and a second bolt (202) is connected to the second nut (201) in an internal thread mode.

5. The automatic thread trimming mechanism for sewing machines convenient to use according to claim 1, characterized in that: the back fixedly connected with slider (13) of screw cap (6), and two slider (13) sliding connection are in same spout (14), the back at support frame (1) inner wall is seted up in spout (14).

6. The automatic thread trimming mechanism for sewing machines convenient to use according to claim 2, characterized in that: the input end of the micro motor (51) is electrically connected with the output end of the external switch through a wire, and the input end of the external switch is electrically connected with the output end of the external power supply through a wire.

7. The automatic thread trimming mechanism for sewing machines convenient to use according to claim 4, characterized in that: the left side face and the right side face of the second bolt (202) are provided with anti-slip grains, the first pin shaft (8) is externally connected with two limiting clamps in a clamping mode, and the two limiting clamps are located on the front face and the back face of the through hole (9) respectively.

8. The automatic thread trimming mechanism for sewing machines convenient to use according to claim 5, characterized in that: the shapes of the sliding groove (14) and the sliding block (13) are both set to be T-shaped, and the thread directions of the two thread columns (4) are set to be opposite.