CN220034863U

CN220034863U - Sewing machine safety protection presser foot

Info

Publication number: CN220034863U
Application number: CN202321148260.4U
Authority: CN
Inventors: 邹桂根; 王行
Original assignee: Yunnan George White Clothing Technology Co ltd
Current assignee: Yunnan George White Clothing Technology Co ltd
Priority date: 2023-05-14
Filing date: 2023-05-14
Publication date: 2023-11-17
Anticipated expiration: 2033-05-14

Abstract

The utility model discloses a safety protection presser foot of a sewing machine, which comprises a presser foot plate, a presser foot assembly and a needle, wherein the presser foot assembly comprises a presser foot rod and a seat body, the seat body is of a hollow structure, a mounting hole is processed at the center of the bottom of the seat body, the presser foot rod is vertically installed in the mounting hole in a penetrating manner, a buffer spring is installed on the presser foot rod positioned in the seat body, a bearing block is installed at the top of the presser foot rod, a screw adjusting mechanism in transmission connection with the bearing block is installed in the seat body, a base is installed on the upper side of the presser foot plate, the lower end of the presser foot rod is detachably installed on the base, and a needle blocking mechanism extending to the front side of the needle is detachably installed outside the seat body. The device can meet the sewing requirements of fabrics with different thicknesses, improves the adaptability of the presser foot, does not influence the operation sight in the using process, and has the advantages of reasonable structure, stronger adaptability and safer use.

Description

Sewing machine safety protection presser foot

Technical Field

The utility model belongs to the technical field of clothing production equipment, and particularly relates to a safety protection presser foot of a sewing machine.

Background

The sewing machine is a machine which uses one or more sewing threads to form one or more kinds of stitch on the sewing materials, so that one or more layers of the sewing materials are interwoven or sewn together, the sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastics, paper and the like, and the sewn stitch is neat, beautiful, flat and firm, and has high sewing speed and simple and convenient use. The general sewing machine consists of four parts of a machine head, a machine seat, a transmission part and an accessory part, wherein the machine head is the main part of the sewing machine and consists of four mechanisms of needling, hooking, picking and feeding and auxiliary mechanisms of winding, pressing, tooth falling and the like, wherein the presser foot is an essential part in the feeding mechanism of the sewing machine, plays an important role in the sewing process and can fix cloth on the machine table. The presser foot mainly comprises a presser foot plate which is concave and a presser foot column connected with the presser foot plate, and the presser foot with the structure has the following defects in the using process: the presser foot bar is of a fixed structure, the distance between the presser foot and cloth is fixed when the presser foot bar is sewn, the sewing requirements of the cloth with different thicknesses cannot be met, and the applicability is not strong; secondly, when the presser foot and the needle are used for pressing and sewing, people are often injured due to the fact that the presser foot and the needle act on the hands of a user due to the fact that the operator is not careful, particularly for students with unskilled sewing operation, the potential safety hazard is large when the device is used, a skilled operator is often required to take care beside the presser foot to use the device, and the phenomenon of inconvenient use exists. Therefore, the development of the sewing machine safety protection presser foot which has reasonable structure, stronger adaptability, safer use and no influence on the operation sight is required objectively.

Disclosure of Invention

The utility model aims to provide the sewing machine safety protection presser foot which has reasonable structure, stronger adaptability, safer use and no influence on the operation sight line.

The utility model aims at realizing the purposes, comprising a foot pressing plate, a foot pressing assembly and a needle, wherein the foot pressing assembly comprises a foot pressing rod and a base body, the base body is of a hollow structure, a mounting hole is processed at the center of the bottom of the base body, the foot pressing rod penetrates through and is vertically arranged in the mounting hole, a buffer spring is arranged on the foot pressing rod positioned in the base body, a bearing block is arranged at the top of the foot pressing rod, a screw adjusting mechanism in transmission connection with the bearing block is arranged in the base body, a base is arranged at the upper side of the foot pressing plate, the lower end of the foot pressing rod is detachably arranged on the base, and a needle blocking mechanism extending to the front side of the needle is detachably arranged at the outer side of the base body.

Compared with the existing presser foot structure, the device has the advantages that: the structure of presser foot bar subassembly has been optimized to this device, the screw rod adjustment mechanism of setting can drive the presser foot and reciprocate, the interval that just can realize between presser foot and the cloth is adjustable through controlling the regulating plate reciprocates, thereby satisfy the demand of making up of different thickness surface fabric, improve the adaptability of presser foot, secondly, the needle fender mechanism of setting can carry out effectual protection to one side of presser foot and the front side of needle, prevent that the unskilled user of operation can not need under the nurse of skilled operating worker, also can carry out sewing operation alone, thereby solve the condition that there is presser foot and sewing needle injury finger when unskilled user operates, can effectually improve the security of use, simultaneously, needle fender mechanism can not influence the operation sight at the in-process of using, the user does not need to change the operation gesture at all, can just carry out sewing operation under normal position, and is rational in infrastructure, the adaptability is stronger, use more safely, convenient operation's advantage, easy popularization and use.

Drawings

FIG. 1 is a front cross-sectional view of the present utility model;

FIG. 2 is a schematic view of A-A in FIG. 1;

FIG. 3 is a side view of the present utility model

In the figure: the device comprises a 1-foot pressing plate, a 2-needle, a 3-foot pressing rod, a 4-seat, a 5-buffer spring, a 6-bearing block, a 7-seat, an 8-adjusting screw rod, a 9-adjusting knob, a 10-first sliding block, a 11-guiding rod, a 12-second sliding block, a 13-connecting section, a 14-side blocking section, a 15-peak section, a 16-front blocking part, a 17-short rod section, a 18-U-shaped bolt, a 19-first pressing plate, a 20-second pressing plate, a 21-nut, a 22-washer, a 23-tension spring, a 24-buffer plate and a 25-rubber layer.

Description of the embodiments

The utility model is further described below with reference to the accompanying drawings, without limiting the utility model in any way, and any alterations or modifications based on the teachings of the utility model are within the scope of the utility model.

As shown in fig. 1 to 3, the utility model comprises a presser foot plate 1, a presser foot assembly and a needle 2, wherein the presser foot assembly comprises a presser foot rod 3 and a base 4, the base 4 is of a hollow structure, a mounting hole is processed at the center of the bottom of the base 4, the presser foot rod 3 is vertically arranged in the mounting hole in a penetrating manner, a buffer spring 5 is arranged on the presser foot rod 3 positioned in the base 4, a bearing block 6 is arranged at the top of the presser foot rod 3, a screw adjusting mechanism in transmission connection with the bearing block 6 is arranged in the base 4, a base 7 is arranged at the upper side of the presser foot plate 1, the lower end of the presser foot rod 3 is detachably arranged on the base 7, and a needle blocking mechanism extending to the front side of the needle 2 is detachably arranged at the outer side of the base 4.

The using method of the device is as follows: if the cloth with relatively thin thickness needs to be sewn, the screw adjusting mechanism controls the bearing block 6 and the presser foot bar 3 to move downwards, so that the presser foot plate 1 is driven to move downwards, the distance between the presser foot plate 1 and the cloth is reduced, and the cloth with relatively thin thickness is sewn; and in the process of cloth sewing, the needle blocking mechanism can effectively protect one side of the presser foot and the front side of the needle 2, so that a user with unskilled operation is prevented from being able to independently perform sewing operation under the condition that the presser foot and the sewing needle hurt fingers when the unskilled user operates, the use safety can be effectively improved, meanwhile, the needle blocking mechanism can not influence the operation sight line in the use process, the user does not need to change the operation posture completely, and the user can perform sewing operation under the normal sitting posture.

Further, the screw adjusting mechanism comprises an adjusting screw 8 and an adjusting knob 9, the adjusting screw 8 rotates to penetrate through the top of the base 4, a first sliding block 10 is fixedly arranged on one side of the bearing block 6, the first sliding block 10 is slidably arranged on the adjusting screw 8, the adjusting knob 9 is arranged on the top of the adjusting screw 8 located on the upper side of the base 4, a positioning plate 11 is arranged on the lower portion of the base 4, and the lower end of the adjusting screw 8 is rotatably arranged on the positioning plate 11 through a bearing seat. When the presser foot bar 3 is used, the adjusting knob 9 is rotated, the adjusting screw 8 is controlled to move upwards or downwards through the adjusting knob 9, and the adjusting screw 8 can drive the bearing block 6 to move upwards or downwards through the first sliding block 10 in the rotating process, so that the presser foot bar 3 can be lifted or lowered.

Further, a guiding mechanism is arranged in a seat body at one side opposite to the screw adjusting mechanism, the guiding mechanism comprises a guiding rod 11 and a second sliding block 12, the guiding rod 11 is fixedly arranged at the top of the seat body 4 in a penetrating mode, the second sliding block 12 is fixedly arranged at the other side of the bearing block 6, a guiding circular hole is formed in the second sliding block 12, the lower end of the guiding rod 11 is slidably arranged in the guiding circular hole, and in order to enable the presser foot rod 3 to always keep vertical up-and-down movement, the guiding rod 11 has guiding function, so that the presser foot rod 3 can always keep vertical up-and-down movement through the guiding rod 11 in the process of up-and-down movement.

Further, the needle blocking mechanism comprises a side blocking part and a front blocking part which are integrally formed, the side blocking part and the front blocking part can be made of steel wires with diameters of 3-5 mm, the side blocking part is positioned on one side of the seat body 4 and the needle 2, the side blocking part comprises a connecting section 13 and a side blocking section 14, a U-shaped bolt component is detachably arranged on the connecting section 13, the U-shaped screw component is detachably arranged on the seat body 4, 1-2 raised crest sections 15 are arranged on the side blocking section 14, the side blocking section 15 is positioned on one side of the needle 2, the crest sections 15 are used for blocking the side surface of the needle 2 during sewing, so that the needle 2 protects an operator during working and prevents injury, the front baffle part is vertically arranged at the end part of the side baffle section 14 and is positioned at the front side of the needle 2, the front baffle part 16 is of a transverse U-shaped structure, thus, when the needle 2 works, a roundabout type protection is formed at the front side of the needle 2, the needle is prevented from being hurt to an operator during working, the formed roundabout channel does not influence the sight of the operator, the operator does not need to change the operation posture, the operator can normally operate without changing the operation posture, the end part of the front baffle part 16 is provided with a short rod section 17 parallel to the side baffle section 14, the short rod section 17 is positioned at the lower side of the side baffle section 14, and the arrangement of the short rod section 17 can increase the protection function of the side surface of the needle 2 and can achieve a better protection effect when being matched with the side baffle section 14.

Further, in order to realize dismantling and adjusting fast to keeping off needle structure, U type bolt assembly includes U type bolt 18, first clamp plate 19, second clamp plate 20 and nut 21, the U type portion suit of U type bolt 18 is on pedestal 4, first clamp plate 19 suit is on the screw thread section of U type bolt 18 after with pedestal 4 contact, second clamp plate 20 suit is on the screw thread section of U type bolt 18 after with first clamp plate 19 contact, nut 21 threaded connection is at the screw thread section of U type bolt 18 and with second clamp plate 20 contact, and U type bolt 18 can reciprocate on pedestal 4, and the convenience is adjusted the protection height of keeping off needle mechanism for the needle 4 like this, improves the adaptability of its device, and first clamp plate 19 and second clamp plate 20 are fixed through the nut 21 and pedestal 4 connection, and its stability is better, is difficult for the relaxing or drops. In order to better improve the connection stability between the nut 21 and the U-bolt 18, it is preferable that a washer 22 of 1-2 is provided on the threaded section of the U-bolt 18 between the second pressing plate 20 and the nut 21.

Further, a buffer pressing plate 24 is connected to the surface of the first pressing plate 19 contacted with the base 4 through a plurality of tension springs 23, a groove is formed in the buffer pressing plate 24 and matched with the outer wall of the base, and the contact area between the base 4 and the U-shaped bolt 18 can be increased by the buffer pressing plate 24 and the rubber layer 25 arranged on the rubber layer 25 at the bottom of the groove, so that the U-shaped bolt 18 is prevented from sliding on the base 4.

Claims

1. The utility model provides a sewing machine safety protection presser foot, includes presser foot (1), presser foot subassembly and needle (2), its characterized in that, the presser foot subassembly includes presser foot pole (3) and pedestal (4), pedestal (4) are inside hollow structure, the bottom center department processing of pedestal (4) has the mounting hole, presser foot pole (3) run through vertically and install in the mounting hole, install buffer spring (5) on presser foot pole (3) that are located pedestal (4), install weight (6) at the top of presser foot pole (3), install in pedestal (4) with weight (6) transmission connection's screw rod adjustment mechanism, pedestal (7) are installed to the upside of presser foot pole (1), the lower extreme detachable of presser foot pole (3) installs on pedestal (7), and pedestal (4) outside detachable installs the needle fender mechanism that extends to needle (2) front side.

2. The sewing machine safety shield presser foot of claim 1, wherein: screw rod adjustment mechanism includes adjusting screw (8) and adjust knob (9), adjusting screw (8) rotate and run through the top of installing pedestal (4), one side fixed mounting of supporting block (6) has first slider (10), first slider (10) slidable mounting is on adjusting screw (8), adjust knob (9) are installed at the top of adjusting screw (8) that is located pedestal (4) upside, locating plate (11) are installed to the lower part of pedestal (4), the lower extreme of adjusting screw (8) is installed on locating plate (11) through the bearing frame rotation.

3. The sewing machine safety shield presser foot of claim 1, wherein: the guide mechanism is arranged in the seat body on one side opposite to the screw rod adjusting mechanism, the guide mechanism comprises a guide rod (11) and a second sliding block (12), the guide rod (11) is fixedly arranged at the top of the seat body (4) in a penetrating mode, the second sliding block (12) is fixedly arranged on the other side of the bearing block (6), a guide round hole is formed in the second sliding block (12), and the lower end of the guide rod (11) is slidably arranged in the guide round hole.

4. The sewing machine safety shield presser foot of claim 1, wherein: the needle blocking mechanism comprises a side blocking part and a front blocking part which are integrally formed, the side blocking part is located on one side of a base body (4) and a needle (1), the side blocking part comprises a connecting section (13) and a side blocking section (14), a U-shaped bolt component is detachably arranged on the connecting section (13), the U-shaped bolt component is detachably arranged on the base body (4), 1-2 protruding crest sections (15) are arranged on the side blocking section (14), the front blocking part is vertically arranged at the end part of the side blocking section (14) and located on the front side of the needle (1), the front blocking part (16) is of a transverse U-shaped structure, a short rod section (17) parallel to the side blocking section (14) is arranged at the end part of the front blocking part (16), and the short rod section (17) is located on the lower side of the side blocking section (14).

5. The sewing machine safety shield presser foot of claim 4, wherein: the U-shaped bolt assembly comprises a U-shaped bolt (18), a first pressing plate (19), a second pressing plate (20) and a nut (21), wherein a U-shaped part of the U-shaped bolt (18) is sleeved on a seat body (4), the first pressing plate (19) is sleeved on a threaded section of the U-shaped bolt (18) and then is in contact with the seat body (4), the second pressing plate (20) is sleeved on a threaded section of the U-shaped bolt (18) and then is in contact with the first pressing plate (19), and the nut (21) is in threaded connection with a threaded section of the U-shaped bolt (18) and is in contact with the second pressing plate (20).

6. The sewing machine safety shield presser foot of claim 4, wherein: a1-2 washer (22) is arranged on the thread section of the U-shaped bolt (18) between the second pressing plate (20) and the nut (21).

7. The sewing machine safety shield presser foot of claim 4, wherein: the surface of the first pressing plate (19) contacted with the seat body (4) is connected with a buffer pressing plate (24) through a plurality of tension springs (23), a groove is arranged on the buffer pressing plate (24), the groove is matched with the outer wall of the seat body, and a rubber layer (25) is arranged at the bottom of the groove.