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CN-224212921-U - Presser foot and bar tacking machine

CN224212921UCN 224212921 UCN224212921 UCN 224212921UCN-224212921-U

Abstract

The utility model discloses a presser foot and a bar tacking machine, wherein the presser foot comprises two adjacent pressing parts which are symmetrically arranged left and right, each pressing part comprises an auxiliary plate, two presser foot sleeves, a driving part and a fixing part, each auxiliary plate comprises a needle groove which extends along a first direction and penetrates through the auxiliary plate, each presser foot sleeve comprises a connecting body, a folded edge and a pressing body which are sequentially connected, each two connecting bodies are movably connected to the auxiliary plate, the two folded edges are oppositely arranged in the second direction and are positioned in the needle groove and extend along the first direction, a sewing area for a machine needle to penetrate through is formed between the two folded edges, the pressing bodies are positioned at the bottom of the auxiliary plate and are used for pressing fabrics, the driving part is used for driving the two connecting bodies to synchronously move away from and approach to each other in the second direction so as to adjust the distance between the two folded edges in the second direction, and the fixing part is used for fixing the connecting bodies which are adjusted by the driving part to the auxiliary plate, so that the size of the presser foot area can be adjusted so as to reduce the frequency of changing the presser foot.

Inventors

  • HU BOBO
  • WU MINGMING
  • ZHU HAO
  • CHEN GUILIN
  • XU YAXIONG

Assignees

  • 拓卡奔马机电科技有限公司

Dates

Publication Date
20260508
Application Date
20250506

Claims (10)

  1. 1. The utility model provides a presser foot, its characterized in that includes two adjacent and bilateral symmetry setting's compress tightly the piece, compress tightly the piece and all include: An auxiliary plate (100) comprising a needle groove (110) extending along a first direction and penetrating through the auxiliary plate (100), wherein the needle groove (110) is positioned on one side of the two pressing pieces, which are opposite to each other, and the auxiliary plate (100) is used for being connected with a presser foot bar; The two presser foot sleeves (200) comprise connecting bodies (210), folded edges (220) and pressing bodies (230) which are sequentially connected, the two connecting bodies (210) are movably connected to the auxiliary plate (100), the two folded edges (220) are oppositely arranged in the second direction and located in the needle groove (110) and extend along the first direction, a sewing area for a machine needle to penetrate along the first direction is formed between the two folded edges (220), the pressing bodies (230) are located at the bottom of the auxiliary plate (100), and the presser foot rods can drive the auxiliary plate (100) to move in the first direction, so that the pressing bodies (230) press fabrics; The driving piece (300) is connected with the two connecting bodies (210), and the driving piece (300) is used for driving the two connecting bodies (210) to synchronously move away from and approach to each other in the second direction so as to adjust the distance between the two folded edges (220) in the second direction; A fixing member (400) for fixing the connection body (210) adjusted by the driving member (300) to the auxiliary plate (100); the first direction and the second direction are perpendicular to each other.
  2. 2. The presser foot according to claim 1, characterized in that a long groove (211) is provided on the side of the same pressing piece, which is away from the two connecting bodies (210), the long groove (211) being parallel to the second direction in the length direction; The top of the auxiliary plate (100) is provided with a convex strip (120) extending along the second direction and being matched with the long groove (211), and the driving piece (300) is used for driving the long groove (211) to slide relative to the convex strip (120) in the second direction so as to enable the two connecting bodies (210) to synchronously move away from and approach to each other in the second direction.
  3. 3. The presser foot according to claim 1, characterized in that the connecting body (210) is further provided with a bar-shaped hole (212) penetrating the connecting body (210) in the first direction, and the length direction of the bar-shaped hole (212) is parallel to a third direction, which is perpendicular to the first direction and the second direction; The driving piece (300) comprises a connecting piece (310) which extends along the first direction and is connected with the auxiliary plate (100), and an adjusting plate (320) which is sleeved on the periphery of the connecting piece (310) and can rotate around the axis of the connecting piece (310) relative to the auxiliary plate (100), wherein the adjusting plate (320) is provided with a rod body (321) which extends to correspond to the inside of the strip-shaped hole (212) along the first direction, and the rod body (321) can be driven to slide in the corresponding strip-shaped hole (212) when the adjusting plate (320) rotates so as to adjust the distance between the strip-shaped hole (212) and the axis of the connecting piece (310) in the second direction.
  4. 4. A presser foot as claimed in claim 3, characterized in that two of said bars (321) on the same adjusting plate (320) are arranged centrally and symmetrically with respect to the axis of said connecting piece (310).
  5. 5. The presser foot according to claim 1, characterized in that a first fixing hole (213) is further provided in one of the connecting bodies (210) in the same pressing member, and the length direction of the first fixing hole (213) is parallel to the second direction; the auxiliary plate (100) is provided with a second fixing hole (130) corresponding to the first fixing hole (213); The fixing piece (400) comprises a tip (410) and a fixing rod (420), wherein the fixing rod (420) can penetrate through a first fixing hole (213) along the first direction and then be screwed into and connected with the second fixing hole (130), so that the tip (410) presses the first fixing hole (213) towards the end face of the tip (410) to limit the movement of the connecting body (210) in the second direction.
  6. 6. A presser foot according to claim 3, characterized in that the auxiliary plate (100) is provided with a mounting hole (140) with an axis extending in the first direction, the mounting hole (140) being a stepped hole, the stepped hole comprising a first hole (141) with a larger cross-sectional dimension perpendicular to the first direction and a second hole (142) with a smaller cross-sectional dimension perpendicular to the first direction, the first hole (141) being located on the side of the second hole (142) facing away from the adjusting plate (320), a shoulder being formed between the first hole (141) and the second hole (142); The connecting piece (310) comprises an abutting joint (311) and an extension rod (312) which is connected to the abutting joint (311) and extends along the first direction, the extension rod (312) penetrates through the second hole (142) and then extends to the upper portion of the auxiliary plate (100), an annular groove (313) which is located above the auxiliary plate (100) is formed in the extension rod (312), a clamping spring (330) is clamped on the annular groove (313), the clamping spring (330) is used for limiting the adjusting plate (320) between the clamping spring (330) and the auxiliary plate (100) to be separated from the extension rod (312), an elastic piece (340) is further arranged between the adjusting plate (320) and the auxiliary plate (100), and two ends of the elastic piece (340) in the first direction are respectively abutted to one side, opposite to the side of the adjusting plate (320) and the auxiliary plate (100), so that the abutting joint (311) is abutted to the shaft shoulder.
  7. 7. The presser foot according to claim 1, further comprising a presser foot holder (500) for connecting with the pressing member, wherein the presser foot holder (500) comprises a connecting plate (510) capable of being attached to the upper surface of the auxiliary plate (100), a first through hole (511) and a second through hole (512) extending along the first direction are formed in the connecting plate (510), the auxiliary plate (100) is further provided with a first threaded hole (150) corresponding to the first through hole (511) and a second threaded hole (160) corresponding to the second through hole (512), one end of a first fastener (600) is inserted into the first threaded hole (150) after the first through hole (511), an elastic washer (610) is arranged between the other end of the first fastener (600) and the connecting plate (510), one end of the second fastener (700) is inserted into the second threaded hole (160) after the second through hole (512), the other end of the second fastener (700) is abutted against the connecting plate (510) is away from the second threaded hole (160), and the other end of the second fastener (700) is abutted against the connecting plate (510) is further connected with the auxiliary frame (520), and the presser foot holder (520) comprises a connecting rod (520).
  8. 8. The presser foot according to any one of claims 1-7, characterized in that the pressing bodies (230) are connected to the bottoms of the folds (220), and that two pressing bodies (230) in the same pressing piece are both bent in opposite directions towards the two folds (220) in relation to the folds (220), that the bending angle between the pressing bodies (230) and the connected folds (220) is larger than 90 °, and that the pressing bodies (230) can be deformed and restored relative to the folds (220), so that the side of the pressing bodies (230) facing away from the auxiliary plate (100) abuts against and spreads the fabric.
  9. 9. The presser foot according to claim 8, characterized in that the pressing body (230) is in particular of spring steel material.
  10. 10. A bar tacking machine comprising a presser foot as claimed in any one of claims 1 to 9.

Description

Presser foot and bar tacking machine Technical Field The utility model relates to the technical field of sewing equipment, in particular to a presser foot and a bar tacking machine. Background The looper is also called a knotting machine or a sealing machine, is one of common sewing equipment, is generally used for reinforcing stitch, is generally suitable for production and use of clothing, knitting, sweaters, western-style clothes, jeans and the like, is respectively a needle and a presser foot which are in direct contact with fabric and cloth, and can stably form pattern stitch on the fabric or the cloth along with the movement of the needle when the looper is used for sewing. Because of the diversity of patterns, the variety of the presser foot is also various, when the pattern size is larger or smaller than the sewing area in the assembled presser foot, the presser foot matched with the required pattern size is often required to be replaced, so that the sewing area in the presser foot can meet the sewing requirement of the required pattern, the replacement process of the presser foot is more complex, and for workers who are not professional maintenance personnel, a great amount of time is required for replacing the presser foot, and the production efficiency of the bar tacking machine is seriously affected. Therefore, how to realize the sewing of the same presser foot in the required patterns with various sizes so as to reduce the frequency of presser foot replacement and improve the production efficiency is a technical problem which needs to be solved by the person skilled in the art at present. Disclosure of utility model The utility model aims to provide a presser foot and a bar tacking machine, which can realize the sewing of the same presser foot in various sizes and required patterns so as to reduce the frequency of replacing the presser foot and improve the production efficiency. In order to achieve the above object, the present utility model provides a presser foot, including two adjacent pressing members symmetrically disposed about each other, the pressing members each including: The auxiliary plate comprises a needle groove extending along a first direction and penetrating through the auxiliary plate, the needle groove is positioned at one side of the two pressing pieces opposite to each other, and the auxiliary plate is used for being connected with the presser foot bar; The two presser foot sleeves comprise connecting bodies, folded edges and pressing bodies which are connected in sequence, the two connecting bodies are movably connected to the auxiliary plate, the two folded edges are oppositely arranged in the needle groove in the second direction and extend along the first direction, a sewing area for a machine needle to penetrate along the first direction is formed between the two folded edges, the pressing bodies are positioned at the bottom of the auxiliary plate, and the presser foot rod can drive the auxiliary plate to move in the first direction so that the pressing bodies press the fabric; the driving piece is connected with the two connecting bodies and is used for driving the two connecting bodies to synchronously move away from and approach to each other in the second direction so as to adjust the distance between the two folded edges in the second direction; and the fixing piece is used for fixing the connector adjusted by the driving piece to the auxiliary plate, and the first direction and the second direction are mutually perpendicular. In one possible implementation mode, one side, away from the other side, of the two connectors in the same pressing piece is provided with a long groove, and the length direction of the long groove is parallel to the second direction; The top of the auxiliary plate is provided with a convex strip which extends along the second direction and is adapted to the long groove, and the driving piece is used for driving the long groove to slide relative to the convex strip in the second direction, so that the two connecting bodies are synchronously far away from and close to each other in the second direction. In one possible embodiment, the connecting body is further provided with a bar-shaped hole penetrating the connecting body along a first direction, and the length direction of the bar-shaped hole is parallel to a third direction, and the third direction is perpendicular to the first direction and the second direction; The driving piece comprises a connecting piece extending along a first direction and connected to the auxiliary plate, and an adjusting plate sleeved on the periphery of the connecting piece and capable of rotating around the axis of the connecting piece relative to the auxiliary plate, wherein the adjusting plate is provided with a rod body extending into the corresponding strip-shaped hole along the first direction, and the rod body can be driven to slide in the corresponding strip-shaped hole when the adjusting plate rotates