CN209741400U

CN209741400U - Roll down pendulum presser foot assembly

Info

Publication number: CN209741400U
Application number: CN201920042296.1U
Authority: CN
Inventors: 蔡金财; 张天兵; 叶桂伟
Original assignee: NINGBO SANHEXIN AUTOMATION Co Ltd
Current assignee: Ningbo xinsanhe Automation Co.,Ltd.
Priority date: 2019-01-10
Filing date: 2019-01-10
Publication date: 2019-12-06
Anticipated expiration: 2029-01-10

Abstract

The utility model relates to a roll up pendulum presser foot subassembly, it includes presser foot handle, presser foot board, upper feeding tooth, left limiting plate, the machine pinhole of presser foot board and the tooth stroke hole of upper feeding tooth are open type for one side of presser foot board, the side of presser foot board is equipped with the evagination and separates the boss of machine pinhole and tooth stroke hole, there is interval between boss and the bottom surface of presser foot board; the front end of the left limiting plate is warped to form a limiting concave block, the front end of the foot pressing plate is warped to form a limiting block, the limiting block is partially positioned in a notch of the limiting concave block to form an upper limiting position and a lower limiting position, and a spring A for tightly abutting against the bottom side of the limiting block is arranged in the limiting concave block; the face of the left limiting plate is provided with a hinge block in hinge fit with the hinge seat at the bottom of the foot pressing plate, a hinge hole of the hinge block is a vertical waist-shaped sliding hole, and a spring B tightly abutting against the hinge block and the hinge seat of the foot pressing plate is arranged on one side of the hinge hole in the hinge block. The utility model discloses distortion, the smooth problem of pay-off, cloth are elongated, cloth shrink in the lower hem sewing of book have effectively been improved.

Description

Roll down pendulum presser foot assembly

Technical Field

The utility model relates to a sewing machine field is a roll up lower hem presser foot subassembly among sewing machine.

Background

At present, the lap lower hem is a sewing style in the field of clothes, and more clothes are sewn by the lap lower hem in a popular mode. However, due to the rolling of the lower hem at the arc part, the rolled lower hem is easy to distort and is not attractive due to different oblique postures of the cloth in the sewing process. In addition, when the existing sewing machine sews the lap hem, the technical problems of unsmooth feeding of sewing materials, stretching of cloth, contraction of cloth and the like are easy to occur. Therefore, the existing roll-down mechanism needs to be further improved.

Disclosure of Invention

In order to overcome the defects, the utility model aims to provide a lower hem presser foot component for the field, which solves the technical problems of easy lower hem distortion, unsmooth feeding, cloth elongation and cloth shrinkage in the sewing process of the existing similar mechanism. The purpose is realized by the following technical scheme.

The utility model provides a roll up pendulum presser foot subassembly down, this presser foot subassembly includes presser foot handle, presser foot board, goes up the pay-off tooth, and presser foot handle bottom is equipped with articulated seat, and the presser foot board is equipped with the articulated joint with articulated seat articulated complex, is equipped with between the top of articulated joint and the articulated seat to support tightly both and make the presser foot board form the support spring of rotation trend for the articulated seat of presser foot handle, and the face of presser foot board is equipped with the organic pinhole to and the tooth stroke hole of pay-off tooth stroke on the adaptation. The structure is characterized in that one side of the machine needle hole and the tooth stroke hole of the foot pressing plate, which are opposite to the foot pressing plate, is open, a boss which protrudes outwards and separates the machine needle hole and the tooth stroke hole is arranged on the side of the foot pressing plate, and a space is arranged between the boss and the bottom surface of the foot pressing plate; the presser foot component comprises a left limiting plate positioned on one side of the boss of the presser foot plate, the front end of the left limiting plate is tilted to form a limiting concave block, the front end of the presser foot plate is tilted to form a limiting block, the limiting block is partially positioned in a notch of the limiting concave block to form an upper limiting position and a lower limiting position, a spring groove hole is formed in the limiting concave block at the bottom side of the notch corresponding to the lower part of the limiting block, and a spring A used for tightly abutting against the bottom side of the limiting block is arranged in the spring groove hole; the face of the left limiting plate is provided with a hinging block in hinged fit with the hinging seat at the bottom of the foot pressing plate, the hinging hole of the hinging block is a vertical waist-shaped sliding hole, a spring groove with an opening at the top is formed in one side of the hinging hole in the hinging block, and a spring B tightly abutting against the hinging block and the hinging seat of the foot pressing plate is arranged in the spring groove. In the structure, the boss is arranged, and the space is arranged between the boss and the bottom surface of the foot pressing plate, so that the resistance of the sewing material in the feeding process is reduced, and the problem of unsmooth feeding is solved; meanwhile, the lug boss can effectively prevent cloth from being accumulated between the upper feeding tooth and the needle, and the influence on the needle thread hooking is reduced. The upper feeding teeth are arranged on the front side of the needle, the feeding amount of the upper layer sewing material by the upper feeding teeth is adjusted according to needs, and the problem of lower hem distortion is effectively solved. Above-mentioned left limiting plate mainly plays and restricts the distance of the edge of the left side cloth of eedle to the needle center suture, simultaneously, utilizes above-mentioned spring A, spring B to and the waist type slide opening of the articulated piece of left limiting plate, makes left limiting plate can compress tightly the cloth evenly, reliably on sewing machine's lower pay-off tooth, ensures the pressure stability between left limiting plate and lower pay-off tooth, effectively improves the problem that the pay-off that brings because of the atress inequality is not smooth, the cloth is elongated, the cloth shrink.

In the roll-down swing presser foot assembly, after the hinge seat of the presser foot handle is hinged with the hinge block of the left limiting plate, the spring groove in the hinge block is not exposed; the board of articulated piece rear side in the left side limiting plate with the board of pressure sole hinge joint rear side is the perk, and aligns each other. Through above-mentioned structure, guarantee left limiting plate and presser foot board hinge complex reliability, guarantee left limiting plate and presser foot board job stabilization, reliable simultaneously.

In the lower hem presser foot component, the front end of the left limit plate tilts towards the side to form the limit concave block. Set up spacing concave block for the perk of left limiting plate side, make left limiting plate front end spatial layout more reasonable, conveniently reserve installation space for other sewing machine complementary unit.

In the roll-down presser foot component, the presser foot component comprises a right limiting component positioned on the other side of the presser foot plate, the right limiting component comprises a right limiting plate, a vertical rod, a rod seat, a fixing pin and a return spring, one side of the presser foot handle is fixedly connected with a pin rod, one side of the rod seat is provided with a pin hole in inserted fit with the pin rod, and the pin rod and the pin hole are locked and fixed through a screw; the rod seat is internally provided with the vertical rod which slides in a vertical telescopic manner, the vertical rod is radially and fixedly connected with the fixed pin, the outer side surface of the rod seat is provided with a sliding hole which is matched with the fixed pin to limit the vertical sliding manner, and a propping reset spring is arranged between the top of the vertical rod and the inner top of the rod seat; the bottom of the vertical rod is fixedly connected with the right limiting plate, and the bottom surface of the right limiting plate is tightly propped against the surface of the conveying cloth under the action of the reset spring. Through above-mentioned right spacing subassembly, mainly play the distance of the edge of restriction right side cloth to the sewing thread of eedle center to and make things convenient for the adjustment of this distance, reduce the influence of right limiting plate to pressing the sole, guarantee the stability and the reliability of pay-off.

In the presser foot assembly for rolling down the pendulum, the two sides of the rod seat are both provided with sliding holes in sliding fit with the fixing pins, and the lower end of the sliding hole on one side is provided with an opening. This structure makes things convenient for the dismouting operation.

In the lower swing presser foot rolling assembly, a limiting groove hole for limiting one end of the return spring is formed in the top of the vertical rod. Through this structure, improve the reliability to reset spring work, prevent the off normal deformation.

The utility model discloses the structure is comparatively simple, has effectively improved the problem that twists, pay-off are not smooth, the cloth is elongated, the cloth contracts in rolling up the lower hem sewing, has improved sewing efficiency and sewing quality, is fit for using as the structure of rolling up the lower hem presser foot subassembly in the current differential pay-off sewing machine, or the institutional advancement of similar product.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic diagram of a local explosion structure of the present invention.

Fig. 3 is a schematic diagram of a local explosion structure of the present invention.

Fig. 4 is the utility model discloses a left limiting plate improves structural schematic.

The sequence numbers and names in the figure are: 1. presser foot handle, 101, articulated seat, 2, go up pay-off tooth, 3, presser foot board, 301, eedle hole, 302, boss, 303, tooth stroke hole, 304, stopper, 305, the articulated joint, 306, the spring hole, 4, left limiting plate, 401, articulated piece, 402, waist type slide opening, 403, spring groove, 404, spring slotted hole, 405, spacing concave block, 5, right limiting plate, 501, montant, 502, spacing slotted hole, 6, fixed pin, 7, the rod seat, 701, the slide opening, 8, the pin lever.

Detailed Description

The invention will now be further described with reference to the accompanying drawings.

As shown in figures 1-3, the lower rolling swing presser foot component comprises a presser foot handle 1, a presser foot plate 3, an upper feeding tooth 2, a left limiting plate 4 and a right limiting component. The bottom of the presser foot handle is provided with a hinge seat 101, the hinge seat is provided with two hinge grooves, the presser foot is provided with a hinge joint 305 in hinge fit with one hinge groove in the hinge seat, and a support spring (not drawn in the figure) for supporting the top of the hinge joint and the hinge seat tightly and enabling the presser foot to form a rotation trend relative to the hinge seat of the presser foot handle is arranged between the top of the hinge joint and the hinge seat. One side of the surface of the foot pressing plate is provided with an open machine needle hole 301 and a tooth stroke hole 303 matched with the tooth stroke of the upper feeding tooth, the side of the foot pressing plate is provided with a boss 302 protruding outwards and separating the machine needle hole and the tooth stroke hole, and a space is arranged between the boss and the bottom surface of the foot pressing plate. The left limiting plate is located on one side of the foot pressing plate boss, the front end of the left limiting plate is tilted towards the front side to form a C-shaped limiting concave block 405, a notch is formed in the limiting concave block, the front end of the foot pressing plate is tilted and extends towards the side surface to form a flat limiting block 304, the part of the limiting block extending towards the side surface is located in the notch of the limiting concave block to form upper and lower limiting, a spring groove hole 404 is formed in the limiting concave block and corresponds to the bottom side of the notch below the limiting block, and a spring A (omitted in the drawing) used for abutting against the bottom side of the limiting block is arranged in. The face of left limiting plate is equipped with and presses the articulated piece 401 of articulated cooperation of another articulated groove of sole articulated seat in bottom, and the articulated cooperation of this articulated piece and the articulated cooperation of above-mentioned articulated head and articulated seat share same articulated shaft. The hinge hole of the hinge block in the left limiting plate is a vertical waist-shaped sliding hole 402, and the left limiting plate is vertically adjusted relative to the presser foot handle through the vertical waist-shaped sliding hole. A spring groove 403 with an open top is formed in one side of the hinge hole in the hinge block, a spring B (not drawn in the figure) tightly abutting against the hinge block and the hinge seat of the foot pressing plate is arranged in the spring groove, and the spring groove is not exposed after the hinge seat is hinged with the hinge block. The board of articulated piece rear side in the above-mentioned left limiting plate to and the board of pressing sole articulated joint rear side are the perk, and the board of two rear sides aligns each other.

The right limiting assembly is located on the other side, deviating from the boss 302, of the presser foot plate 3, and comprises a right limiting plate 5, a vertical rod 501, a rod seat 7, a fixing pin 6 and a reset spring (drawing is omitted in the drawing), the pin rod 8 is fixedly connected to one side of the presser foot handle, the pin hole matched with the pin rod in an inserting mode is formed in one side of the rod seat, and the pin rod and the pin hole are fixedly locked through screws. The vertical rod is arranged in the rod seat and slides in a vertical telescopic mode, the vertical rod is fixedly connected with the fixing pin in the radial direction, a sliding hole which is matched with the fixing pin to limit the vertical sliding mode is formed in the outer side face of the rod seat, and the lower end of the sliding hole in one side is in an open mode, so that the vertical rod and the rod seat can be conveniently disassembled and assembled. The reset spring which is tightly supported is arranged between the top of the vertical rod and the inner top of the rod seat, and the top of the vertical rod is provided with a limiting groove hole which limits the bottom end of the reset spring, so that the working reliability of the reset spring is improved. The bottom of the vertical rod is fixedly connected with a right limiting plate, and the bottom surface of the right limiting plate is tightly propped against the surface of the corresponding sewing machine for conveying cloth under the action of a return spring.

As shown in fig. 4, in order to make the front end space of the left limit plate more reasonable and facilitate the installation of the auxiliary mechanism of other sewing machines, the front end of the left limit plate 4 is changed into a C-shaped limit concave block 405 which is formed by tilting towards the side surface of the limit plate.

The above contents are intended to illustrate the technical means of the present invention, and do not limit the technical scope of the present invention. Obvious modifications to the invention, combined with the prior common general knowledge, are also within the scope of the claims of the invention.

Claims

1. A pressure foot component for rolling down a hem comprises a pressure foot handle (1), a pressure foot plate (3) and an upper feeding tooth (2), wherein a hinged seat (101) is arranged at the bottom of the pressure foot handle, the pressure foot plate is provided with a hinged head (305) which is hinged and matched with the hinged seat, a butting spring which butts against the pressure foot handle and the hinged seat and enables the pressure foot plate to form a rotation trend relative to the hinged seat of the pressure foot handle is arranged between the top of the hinged head and the hinged seat, the surface of the pressure foot plate is provided with an organic needle hole (301), and a tooth stroke hole (303) which is matched with the tooth stroke of the upper feeding; the tooth punching machine is characterized in that one side of the machine needle hole (301) and the tooth stroke hole (303) of the foot pressing plate (3) relative to the foot pressing plate is open, a convex boss (302) which protrudes outwards and separates the machine needle hole and the tooth stroke hole is arranged on the side of the foot pressing plate, and a space is arranged between the boss and the bottom surface of the foot pressing plate; the presser foot component comprises a left limiting plate (4) positioned on one side of the boss of the presser foot plate, the front end of the left limiting plate is warped to form a limiting concave block (405), the front end of the presser foot plate is warped to form a limiting block (304), the limiting block is partially positioned in a notch of the limiting concave block to form an upper limiting position and a lower limiting position, a spring groove hole (404) is formed in the limiting concave block and corresponds to the bottom side of the notch below the limiting block, and a spring A used for tightly abutting against the bottom side of the limiting block is arranged in the spring groove hole; the face of left side limiting plate be equipped with articulated piece (401) of the articulated seat (101) articulated complex of presser foot board bottom, and the hinge hole of articulated piece be vertical waist type slide opening (402), lie in hinge hole one side in the articulated piece and be equipped with open-top's spring groove (403), the spring inslot is equipped with the spring B who supports tight articulated piece and presser foot board articulated seat.

2. Roll-down presser foot assembly according to claim 1, characterized in that after the hinge seat (101) of the presser foot handle (1) is hinged with the hinge block (401) of the left limit plate (4), the spring groove (403) in the hinge block is not exposed; the board of articulated piece rear side in the left side limiting plate with the board of pressing sole (3) hinge joint (305) rear side is the perk, and aligns each other.

3. Roll down pendulum presser assembly according to claim 1, characterized in that the front end of the left limit plate is turned up sideways forming the limit concave block (405).

4. The roll-down pendulum presser foot assembly according to claim 1, characterized in that the presser foot assembly comprises a right limit assembly located at the other side of the presser foot plate (3), the right limit assembly comprises a right limit plate (5), a vertical rod (501), a rod seat (7), a fixed pin (6) and a return spring, one side of the presser foot handle (1) is fixedly connected with a pin rod (8), one side of the rod seat is provided with a pin hole in inserted fit with the pin rod, and the pin rod and the pin hole are locked and fixed through a screw; the rod seat is internally provided with the vertical rod which slides in a vertical telescopic manner, the vertical rod is fixedly connected with the fixed pin in the radial direction, the outer side surface of the rod seat is provided with a sliding hole (701) which is matched with the fixed pin to limit in a vertical sliding manner, and a tightly propped reset spring is arranged between the top of the vertical rod and the inner top of the rod seat; the bottom of the vertical rod is fixedly connected with the right limiting plate, and the bottom surface of the right limiting plate is tightly propped against the surface of the conveying cloth under the action of the reset spring.

5. Roll down presser foot assembly according to claim 4, characterized in that the rod seat (7) is provided with a slide hole (701) on both sides thereof in sliding engagement with the fixing pin (6), and the lower end of one side slide hole is open.

6. Roll down pendulum presser assembly according to claim 4, characterized in that the top of the vertical bar (501) is provided with a limit slot (502) for limiting one end of the return spring.