CN214362103U

CN214362103U - Alternative lifting mechanism for presser foot of high-speed sewing machine

Info

Publication number: CN214362103U
Application number: CN202022545185.8U
Authority: CN
Inventors: 朱国强
Original assignee: Lishui Shuangzheng Motor Co ltd
Current assignee: Lishui Shuangzheng Motor Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-10-08
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses a presser foot alternate lifting mechanism of a high-speed sewing machine, which comprises a workbench and a frame, wherein the frame is fixed on the workbench, a screw rod is arranged in the frame, one end of the screw rod is provided with a motor, the other end of the screw rod passes through the lower end thread of the frame and is connected with a first fixed block, the first fixed block is connected with the frame through a support rod in a sliding way, and the side wall of the first fixed block is provided with a switch, the utility model mainly drives the screw rod to rotate through the motor, the screw rod drives the first fixed block to move, so that the first fixed block drives the presser foot to ascend or descend, the distance between the presser foot and the workbench can be flexibly adjusted according to the thickness of a sewing product, the presser foot is connected with the first fixed block in a sliding way through a connecting rod, one end of the connecting rod is fixed with a compression spring, and the compression spring can climb steps with different thicknesses of the sewing product in the sewing process, the convenience of the presser foot alternate lifting height adjustment is improved to a certain extent.

Description

Alternative lifting mechanism for presser foot of high-speed sewing machine

Technical Field

The utility model relates to a high-speed sewing machine technical field specifically is a high-speed sewing machine presser foot hoist mechanism in turn.

Background

The high-speed sewing machine is used for sewing operation, in the sewing process, because some sewing processes need to fold and sew sewing materials, especially when the sewing materials are leather and other thicker fabrics, the alternative lifting height of inner and outer presser feet in the presser foot alternative quantity mechanism of the sewing machine is not enough, the presser feet cannot climb up the step, namely, the outer presser feet cannot realize the feeding of the thick step process, therefore, the lifting height of the presser feet is required to be adjusted in real time along with the thickness of the sewing materials, however, most of the adjustment of the lifting height of the presser feet of the existing high-speed sewing machine needs manual operation, the presser feet are frequently adjusted in the sewing process, the sewing efficiency is low, the presser foot alternative lifting mechanism is brought to the sewing operation, and therefore, the high-speed sewing machine presser foot alternative lifting mechanism needs to be provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hoist mechanism is in turn pressed to high-speed sewing machine presser foot, through hoist mechanism's theory of operation, can solve because of the regulation that current high-speed sewing machine presser foot promoted height mostly needs to lead to making the in-process frequently to adjust the presser foot through artifical manually operation, lead to making inefficiency, the problem of bringing inconvenience for making the operation.

In order to achieve the above object, the utility model provides a following technical scheme: a high-speed sewing machine presser foot alternative lifting mechanism comprises a workbench and a frame, wherein the frame is fixed on the workbench, a screw rod is arranged inside the frame, one end of the screw rod is provided with a motor, the other end of the screw rod penetrates through the lower end of the frame and is connected with a first fixed block in a threaded manner, the first fixed block is connected with the frame in a sliding manner through a support rod, the side wall of the first fixed block is provided with a switch, the lower end of the first fixed block is provided with a second fixed block, one end of the second fixed block is fixed with the first fixed block through an electric push rod, the other end of the second fixed block is connected with a connecting rod in a sliding manner through a first fixed seat, the first fixed seat is fixed with the second fixed block through a bolt, one end of the connecting rod is inserted into the first fixed seat and is provided with a compression spring, and the other end of the connecting rod is fixed with a presser foot, one side of the first fixed block is provided with a second fixed seat, and the lower end of the second fixed seat is provided with a sewing needle.

Preferably, the motor is fixed at the upper end of the rack, an output shaft of the motor is rotatably connected with the rack through a bearing, and the inner wall of the inner ring of the bearing is fixed with one end of the screw rod.

Preferably, the number of the support rods is two, the support rods are located on two sides of the screw rod, a through hole for inserting one end of each support rod is formed in the lower end of the rack, and a limiting plate is fixed at one end of each support rod.

Preferably, first fixed block is the hollow cylinder setting, electric putter passes through the bolt fastening and is in the inside of first fixed block, the confession has been seted up to the lower extreme of first fixed block the one end male through-hole of second fixed block, just the one end of second fixed block is fixed with the baffle, the one end of electric putter piston rod with the baffle is fixed.

Preferably, the lower extreme of second fixed block is seted up and is supplied the one end male recess of first fixing base, just the screw thread through-hole that supplies the bolt spiro union is seted up to the lateral wall of second fixed block, the screw thread blind hole that supplies the bolt spiro union is seted up to the lateral wall of first fixing base.

Preferably, the first fixing seat is a hollow cylinder, a through hole for inserting one end of the connecting rod is formed in the lower end of the first fixing seat, a stop block is fixed to one end of the connecting rod, one end of the compression spring is fixed to one side of the stop block, and the other end of the compression spring is fixed to the inner wall of the first fixing seat.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses mainly drive the screw rod through the motor and rotate, the screw rod drives first fixed block and moves, makes first fixed block drive the presser foot and rises or descend, is convenient for adjust the distance between presser foot and the workstation according to the thickness flexibility of sewing products, and the presser foot passes through connecting rod and first fixed block sliding connection, and the one end of connecting rod is fixed with compression spring, in the sewing process, makes the presser foot compress compression spring and can climb the step of different thickness of sewing products, improves the convenience that the presser foot promotes height adjustment in turn to a certain extent;

2. the utility model discloses the first fixed block that sets up passes through electric putter and is fixed with the second fixed block, and the one end of second fixed block is provided with the baffle, and the lateral wall of first fixed block is provided with the switch, switch and electric putter electric connection can start electric putter through opening the switch, make electric putter drive the second fixed block and remove, and the second fixed block drives the presser foot and removes, does not need personnel to frequently adjust the presser foot, increases to a certain extent and makes up efficiency, and it is convenient to bring for making up the operation.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is a schematic view of the internal structure of the first fixing base of the present invention.

In the figure: 1. a work table; 2. a frame; 3. a motor; 4. a bearing; 5. a screw; 6. a first fixed block; 7. a support bar; 8. a limiting plate; 9. a switch; 10. a second fixed block; 11. a first fixed seat; 12. a connecting rod; 13. a presser foot; 14. an electric push rod; 15. a second fixed seat; 16. a sewing needle; 17. a baffle plate; 18. a stopper; 19. compressing the spring.

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.

Referring to fig. 1-3, the present invention provides a technical solution: a presser foot alternate lifting mechanism of a high-speed sewing machine comprises a workbench 1 and a frame 2, wherein the frame 2 is fixed on the workbench 1, a screw 5 is arranged inside the frame 2, one end of the screw 5 is provided with a motor 3, the motor 3 is fixed at the upper end of the frame 2, an output shaft of the motor 3 is rotatably connected with the frame 2 through a bearing 4, and the inner wall of an inner ring of the bearing 4 is fixed with one end of the screw 5, so that the motor 3 can drive the screw 5 to rotate;

the other end of the screw 5 penetrates through the lower end of the rack 2 and is connected with a first fixing block 6 in a threaded manner, the first fixing block 6 is connected with the rack 2 in a sliding manner through two support rods 7, the support rods 7 are positioned on two sides of the screw 5, the lower end of the rack 2 is provided with a through hole for inserting one end of each support rod 7, one end of each support rod 7 is fixedly provided with a limiting plate 8, the support rods 7 are used for limiting the first fixing blocks 6, the first fixing blocks 6 are prevented from rotating along with the rotation of the screw 5, and the limiting plates 8 are used for limiting the downward movement distance of the first fixing blocks 6;

a switch 9 is arranged on the side wall of the first fixing block 6, a second fixing block 10 is arranged at the lower end of the first fixing block 6, one end of the second fixing block 10 is fixed with the first fixing block 6 through an electric push rod 14, the switch 9 is electrically connected with the electric push rod 14, the first fixing block 6 is arranged in a hollow cylinder shape, the electric push rod 14 is fixed in the first fixing block 6 through a bolt, a through hole for inserting one end of the second fixing block 10 is formed in the lower end of the first fixing block 6, a baffle 17 is fixed at one end of the second fixing block 10, one end of a piston rod of the electric push rod 14 is fixed with the baffle 17, and the baffle 17 is used for limiting the moving distance of the second fixing block 10;

the other end of the second fixing block 10 is connected with a connecting rod 12 in a sliding mode through a first fixing seat 11, the first fixing seat 11 is fixed with the second fixing block 10 through a bolt, a groove for inserting one end of the first fixing seat 11 is formed in the lower end of the second fixing block 10, a threaded through hole for bolt screwing is formed in the side wall of the second fixing block 10, a threaded blind hole for bolt screwing is formed in the side wall of the first fixing seat 11, the first fixing seat 11 is detachably arranged, and different presser feet can be replaced conveniently according to actual sewing requirements;

the inside that first fixing base 11 was inserted to the one end of connecting rod 12 is provided with compression spring 19, the other end of connecting rod 12 is fixed with presser foot 13, first fixing base 11 is the hollow cylinder setting, the one end male through-hole that supplies connecting rod 12 is seted up to the lower extreme of first fixing base 11, and the one end of connecting rod 12 is fixed with dog 18, compression spring 19's one end is fixed with one side of dog 18, compression spring 19's the other end is fixed with the inner wall of first fixing base 11, one side of first fixed block 6 is provided with second fixing base 15, the lower extreme of second fixing base 15 is provided with sewing needle 16.

The working principle is as follows: the sewing product is placed on the workbench 1, the electric push rod 14 pushes the second fixing block 10 to move downwards by opening the switch 9, the second fixing block 10 drives the first fixing seat 11 to move, the first fixing seat 11 drives the presser foot 13 to move downwards, so that the presser foot 13 is attached to the sewing product for sewing operation, the presser foot does not need to be adjusted frequently by personnel, the sewing efficiency is increased to a certain extent, and convenience is brought to the sewing operation;

when sewing to the sewing product of different thickness, drive screw rod 5 through motor 3 and rotate, screw rod 5 drives first fixed block 6 and removes, make first fixed block 6 drive presser foot 13 rise or descend, be convenient for adjust the distance between presser foot 13 and the workstation 1 according to the thickness flexibility of sewing product, and presser foot 13 passes through connecting rod 12 and first fixed block 6 sliding connection, the one end of connecting rod 12 is fixed with compression spring 19, in sewing process, make presser foot 13 compression spring 19 can climb the step of the different thickness of sewing product, improve the convenience that the presser foot promoted height control in turn to a certain extent.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hoist mechanism in turn of high-speed sewing machine presser foot, includes workstation (1) and frame (2), its characterized in that: the frame (2) is fixed on the workbench (1), a screw rod (5) is arranged in the frame (2), a motor (3) is arranged at one end of the screw rod (5), the other end of the screw rod (5) penetrates through the lower end of the frame (2) and is connected with a first fixed block (6) in a threaded manner, the first fixed block (6) is connected with the frame (2) in a sliding manner through a support rod (7), a switch (9) is arranged on the side wall of the first fixed block (6), a second fixed block (10) is arranged at the lower end of the first fixed block (6), one end of the second fixed block (10) is fixed with the first fixed block (6) through an electric push rod (14), the other end of the second fixed block (10) is connected with a connecting rod (12) in a sliding manner through a first fixed seat (11), and the first fixed seat (11) is fixed with the second fixed block (10) through a bolt, one end of the connecting rod (12) is inserted into the first fixing seat (11) and is provided with a compression spring (19), the other end of the connecting rod (12) is fixed with a pressure foot (13), one side of the first fixing block (6) is provided with a second fixing seat (15), and the lower end of the second fixing seat (15) is provided with a sewing needle (16).

2. The high speed needle bar presser foot alternate lift mechanism of claim 1, wherein: the motor (3) is fixed at the upper end of the rack (2), an output shaft of the motor (3) is rotatably connected with the rack (2) through a bearing (4), and the inner wall of the inner ring of the bearing (4) is fixed with one end of the screw (5).

3. The high speed needle bar presser foot alternate lift mechanism of claim 1, wherein: the utility model discloses a supporting rod, including screw rod (5), bracing piece (7), support frame (2), bracing piece (7) are provided with two, bracing piece (7) are located the both sides of screw rod (5), the confession is seted up to the lower extreme of frame (2) the one end male through-hole of bracing piece (7), just the one end of bracing piece (7) is fixed with limiting plate (8).

4. The high speed needle bar presser foot alternate lift mechanism of claim 1, wherein: first fixed block (6) are the hollow cylinder setting, electric putter (14) pass through the bolt fastening and are in the inside of first fixed block (6), the confession has been seted up to the lower extreme of first fixed block (6) the one end male through-hole of second fixed block (10), just the one end of second fixed block (10) is fixed with baffle (17), the one end of electric putter (14) piston rod with baffle (17) are fixed.

5. The high speed needle bar presser foot alternate lift mechanism of claim 1, wherein: the lower extreme of second fixed block (10) is seted up and is supplied the one end male recess of first fixing base (11), just the screw thread through-hole that supplies the bolt spiro union is seted up to the lateral wall of second fixed block (10), the screw thread blind hole that supplies the bolt spiro union is seted up to the lateral wall of first fixing base (11).

6. The high speed needle bar presser foot alternate lift mechanism of claim 1, wherein: first fixing base (11) are the hollow cylinder setting, the confession has been seted up to the lower extreme of first fixing base (11) the one end male through-hole of connecting rod (12), just the one end of connecting rod (12) is fixed with dog (18), the one end of compression spring (19) with one side of dog (18) is fixed, the other end of compression spring (19) with the inner wall of first fixing base (11) is fixed.