CN216688579U - Needle pitch adjustable device for sewing machine - Google Patents
Needle pitch adjustable device for sewing machine Download PDFInfo
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- CN216688579U CN216688579U CN202123281276.6U CN202123281276U CN216688579U CN 216688579 U CN216688579 U CN 216688579U CN 202123281276 U CN202123281276 U CN 202123281276U CN 216688579 U CN216688579 U CN 216688579U
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- needle pitch
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Abstract
The utility model relates to a needle pitch adjustable device for a sewing machine, which relates to a sewing machine and belongs to the technical field of sewing equipment, which comprises a motor and a feeding shaft fixed on a base, wherein a motor shaft of the motor rotates back and forth within a set angle, and a motor shaft of the motor and the feeding shaft are respectively and fixedly connected with a needle pitch crank I and a needle pitch crank II, a needle pitch crank connecting rod is rotatably connected between the needle pitch crank I and the needle pitch crank II, the other end of the feeding shaft is provided with a tooth frame seat component and a feed lifting fork crank, the utility model aims to provide a needle pitch adjustable device for a sewing machine, which is simple in structure, can increase the types of lace sewing by adjusting the cloth feeding frequency of a feeding tooth and the swing angle of the feeding tooth through a motor, and is characterized in that a bearing is arranged at the connecting end of a needle pitch crank connecting rod and a needle pitch crank I and a needle pitch crank II, and a bearing mounting hole for accommodating the bearing is formed in the needle pitch crank connecting rod.
Description
Technical Field
The utility model belongs to the technical field of sewing equipment, relates to a sewing machine, and particularly relates to a needle pitch adjustable device for the sewing machine.
Background
The sewing machine is a machine which uses one or more sewing threads to form one or more stitches on a sewing material so as to enable one or more layers of sewing materials to be interwoven or sewed, the sewing machine can be used for sewing fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastic, paper and the like, the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient; along with the rapid development of the society, the lace that clothing was made up is more and more liked by the consumer, however, sewing machine on the market can't satisfy consumer's demand because angle modulation is inconvenient to the angle modulation volume is relatively fixed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a needle pitch adjustable device for a sewing machine, which has a simple structure, can increase the types of lace sewing by adjusting the cloth feeding frequency of a feeding tooth and the swing angle of the feeding tooth through a motor.
The purpose of the utility model is realized by the following steps:
the needle pitch adjustable device comprises a motor and a feeding shaft which are fixed on a base, wherein a motor shaft of the motor rotates back and forth within a set angle, the motor shaft of the motor and the feeding shaft are respectively and fixedly connected with a needle pitch crank I and a needle pitch crank II, a needle pitch crank connecting rod is rotatably connected between the needle pitch crank I and the needle pitch crank II, a tooth frame seat assembly and a tooth lifting fork crank are arranged at the other end of the feeding shaft, a bearing is arranged at the connecting end of the needle pitch crank connecting rod, the needle pitch crank connecting rod and the connecting ends of the needle pitch crank I and the needle pitch crank II, and a bearing mounting hole for accommodating the bearing is formed in the needle pitch crank connecting rod.
In the stitch length adjusting device for the sewing machine, the stitch length crank I and the stitch length crank II are provided with connecting frames convenient for the connection of the stitch length crank connecting rod.
In foretell a gauge needle adjustable device for sewing machine, the well tip of link is provided with and supplies gauge needle crank connecting rod to stretch into the spread groove of connecting, just be provided with the connecting hole that runs through the spread groove on the link, be equipped with the connecting piece that is convenient for gauge needle crank connecting rod and gauge needle crank I and gauge needle crank II to be connected in the connecting hole.
In the stitch length adjustable device for the sewing machine, the thread frame seat component comprises a thread frame seat, a thread frame and feeding teeth, the feeding teeth are fixed on the thread frame, and two ends of the thread frame are respectively connected with the thread frame seat and the thread lifting fork crank.
In the above needle pitch adjustable device for a sewing machine, the tooth frame base comprises a connecting base and a supporting frame, the supporting frame is fixedly arranged on the connecting base, and one end of the tooth frame is hinged on the supporting frame.
In the stitch length adjustable device for the sewing machine, the connecting base is provided with a fixing hole convenient for connecting the feeding shaft, two clamping plates are symmetrically arranged below the connecting base, a gap is arranged between the two clamping plates and is communicated with the fixing hole, and the two clamping plates are fixedly connected through a bolt.
In the above needle pitch adjustable device for a sewing machine, the motor shaft of the motor is set at an angle of 5 ° to 15 °.
In the above needle pitch adjustable device for a sewing machine, the bearing is closely fitted to the bearing mounting hole.
Compared with the prior art, the utility model has the outstanding and beneficial technical effects that:
according to the utility model, the motor which can rotate back and forth within a certain angle drives the feeding shaft to rotate back and forth through the needle pitch crank I, the needle pitch crank connecting rod and the needle pitch crank II, the feeding shaft drives the tooth frame seat to swing, the tooth frame seat drives the tooth frame to swing, and the back and forth rotation angle of the motor can be adjusted, so that various laces can be sewn, and the requirements of consumers can be met.
Drawings
FIG. 1 is a schematic diagram of the present invention.
FIG. 2 is an exploded view of a gauge crank I, gauge crank link and gauge crank II of the present invention;
fig. 3 is a schematic view of the construction of the dental articulator mount of the present invention.
1-a motor; 2-a feeding shaft; 3-a stitch length crank I; 4-gauge crank II; 5-a stitch length crank connecting rod; 21-a dental articulator holder assembly; 22-a feed lifting fork crank; 31-a connecting frame; 32-a connecting groove; 33-connecting holes; 51-a bearing; 52-bearing mounting holes; 211-dental articulator holder; 212-dental articulator; 213-feeding teeth; 2111-connection base; 2112-support rack; 2113-fixation holes; 2114-Splint; 2115-gap;
Detailed Description
The utility model is further described in the following with specific embodiments in conjunction with the accompanying drawings:
as shown in fig. 1-3: a needle pitch adjustable device for a sewing machine comprises a motor 1 and a feeding shaft 2 which are fixed on a base, wherein a motor shaft of the motor 1 rotates back and forth within a set angle, a needle pitch crank I3 and a needle pitch crank II 4 are fixedly connected to the motor shaft of the motor 1 and the feeding shaft 2 respectively, a needle pitch crank connecting rod 5 is rotatably connected between the needle pitch crank I3 and the needle pitch crank II 4, a tooth frame seat component 21 and a tooth lifting fork crank 22 are arranged at the other end of the feeding shaft 2, a bearing 51 is arranged at the connecting end of the needle pitch crank connecting rod 5, the needle pitch crank connecting rod I3 and the needle pitch crank II 4, a bearing mounting hole 52 for accommodating the bearing 51 is formed in the needle pitch crank connecting rod 5, and the bearing is designed to improve the swinging smoothness of the needle pitch crank connecting rod, the needle pitch crank I and the needle pitch crank II Needle gage crank connecting rod and needle gage crank II drive the pay-off axle and make a round trip to rotate, and the pay-off axle drives the swing of dental articulator seat simultaneously, and the dental articulator seat then drives the swing of dental articulator to the pivoted angle that makes a round trip of motor can debug, can make up diversified lace like this, can satisfy consumer's demand, and the motor is servo motor.
In foretell a gauge needle adjustable device for sewing machine, be provided with the link 31 that the gauge needle crank connecting rod 5 of being convenient for is connected on gauge needle crank I3 and gauge needle crank II 4, the well tip of link 31 is provided with the spread groove 32 that supplies gauge needle crank connecting rod 5 to stretch into the connection, just be provided with the connecting hole 33 that runs through spread groove 32 on the link 31, be equipped with the connecting piece that the gauge needle crank connecting rod 5 of being convenient for is connected with gauge needle crank I3 and gauge needle crank II 4 in the connecting hole 33, can improve gauge needle crank connecting rod and gauge needle crank I and gauge needle crank II stability of being connected like this.
In the above needle pitch adjusting device for a sewing machine, the thread frame base assembly 21 includes a thread frame base 211, a thread frame 212 and feeding teeth 213, the feeding teeth 213 are fixed on the thread frame 212, two ends of the thread frame 212 are respectively connected with the thread frame base 211 and the feed lifting fork crank 22, one end of the thread frame is hinged on the thread frame base, and the other end is movably arranged on the feed lifting fork crank.
In the above needle pitch adjustable device for a sewing machine, the rack holder 211 includes a connection base 2111 and a support 2112, the support 2112 is fixedly arranged on the connection base 2111, one end of the rack 212 is hinged on the support 2112, the connection base 2111 is provided with a fixing hole 2113 convenient for connecting the feeding shaft 2, two clamp plates 2114 are symmetrically arranged below the connection base 2111, a gap 2115 is arranged between the two clamp plates 2114, the gap 2115 is communicated with the fixing hole 2113, the two clamp plates 2114 are connected and fixed by bolts and fixed on the feeding shaft in a clamping manner, so as to facilitate the installation and fixation of the rack holder on the feeding shaft.
In the above needle pitch adjustable device for a sewing machine, the motor shaft of the motor 1 is set to an angle of 5 ° to 15 °, so as to increase the types of lace sewing and meet the needs of consumers.
In the above needle pitch adjusting device for a sewing machine, the bearing 51 is tightly fitted with the bearing mounting hole 52, specifically, the bearing and the bearing mounting hole are in transition or interference fit, so as to improve the swing fluency of the needle pitch crank i, the needle pitch crank connecting rod and the needle pitch crank ii.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.
Claims (8)
1. The utility model provides a gauge needle adjustable device for sewing machine, is including fixing motor (1) and pay-off axle (2) on the base, its characterized in that: the needle pitch crank mechanism is characterized in that a motor shaft of the motor (1) rotates back and forth within a set angle, a needle pitch crank I (3) and a needle pitch crank II (4) are fixedly connected to the motor shaft of the motor (1) and the feeding shaft (2) respectively, a needle pitch crank connecting rod (5) is rotatably connected between the needle pitch crank I (3) and the needle pitch crank II (4), a tooth frame seat assembly (21) and a tooth lifting fork crank (22) are arranged at the other end of the feeding shaft (2), a bearing (51) is arranged at the connecting end of the needle pitch crank connecting rod (5) and the needle pitch crank I (3) and the needle pitch crank II (4), and a bearing mounting hole (52) used for accommodating the bearing (51) is formed in the needle pitch crank connecting rod (5).
2. The needle gauge adjustable device for the sewing machine according to claim 1, characterized in that: and a connecting frame (31) convenient for connecting the needle pitch crank connecting rod (5) is arranged on the needle pitch crank I (3) and the needle pitch crank II (4).
3. The needle gauge adjustable device for the sewing machine according to claim 2, characterized in that: the well tip of link (31) is provided with and supplies gauge needle crank connecting rod (5) to stretch into spread groove (32) of connection, just be provided with connecting hole (33) that run through spread groove (32) on link (31), be equipped with the connecting piece that is convenient for gauge needle crank connecting rod (5) and gauge needle crank I (3) and gauge needle crank II (4) to be connected in connecting hole (33).
4. The needle gauge adjustable device for the sewing machine according to claim 1, 2 or 3, characterized in that: the feed rack assembly (21) comprises a feed rack seat (211), a feed rack (212) and feed teeth (213), wherein the feed teeth (213) are fixed on the feed rack (212), and two ends of the feed rack (212) are respectively connected with the feed rack seat (211) and the feed lifting fork crank (22).
5. The needle gauge adjustable device for the sewing machine according to claim 4, characterized in that: the dental articulator seat (211) comprises a connecting base (2111) and a supporting frame (2112), the supporting frame (2112) is fixedly arranged on the connecting base (2111), and one end of the dental articulator (212) is hinged to the supporting frame (2112).
6. The needle gauge adjustable device for the sewing machine according to claim 5, characterized in that: the feeding shaft connecting device is characterized in that a fixing hole (2113) convenient for connecting the feeding shaft (2) is formed in the connecting base (2111), two clamping plates (2114) are symmetrically arranged below the connecting base (2111), a gap (2115) is formed between the two clamping plates (2114), the gap (2115) is communicated with the fixing hole (2113), and the two clamping plates (2114) are fixedly connected through bolts.
7. The needle gauge adjustable device for a sewing machine according to claim 1 or 2 or 3 or 5 or 6, characterized in that: the angle set by the motor shaft of the motor (1) is 5-15 degrees.
8. The needle gauge adjustable device for the sewing machine according to claim 7, characterized in that: the bearing (51) is tightly matched with the bearing mounting hole (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123281276.6U CN216688579U (en) | 2021-12-24 | 2021-12-24 | Needle pitch adjustable device for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123281276.6U CN216688579U (en) | 2021-12-24 | 2021-12-24 | Needle pitch adjustable device for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216688579U true CN216688579U (en) | 2022-06-07 |
Family
ID=81842472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123281276.6U Active CN216688579U (en) | 2021-12-24 | 2021-12-24 | Needle pitch adjustable device for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216688579U (en) |
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2021
- 2021-12-24 CN CN202123281276.6U patent/CN216688579U/en active Active
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