Elastic adaptive folder presser foot

Abstract

An elastic adaptive folder presser foot comprises a presser foot fixing column and is characterized in that an installation groove is formed in the lower end of the presser foot fixing column, pin shaft installation holes are formed in the two sides of the installation groove, a first cloth pressing pry and a second cloth pressing pry are installed in the installation groove through pin shafts respectively, and the pin shafts are installed in the pin shaft installation holes. The outer side of the cloth pressing pry arc-shaped section of the first cloth pressing pry or the second cloth pressing pry is fixedly provided with a folder, and an elastic structure is installed in the installation groove and between the installation groove and the first cloth pressing pry or the second cloth pressing pry. The sewing and feeding device has the advantages that the sewing and feeding device is simple in structure and good in adaptability to single-side sewing and wrapping of lappets or cloth strips, the presser foot and the folder are arranged together, deviation and distortion of the lappets or the cloth strips in the sewing and feeding process are effectively avoided, and production efficiency and processing quality are improved.

Description

Technical Field

[0001] The present application relates to a sewing presser foot, in particular to an elastic adaptive presser foot, belonging to the technical field of garment processing auxiliary equipment. Background Art

[0002] In the field of garment processing, a fixed sewing foot is installed under the head of the sewing machine. A cloth pressing pry is fixed at the lower end of the existing sewing foot. During the sewing process, the cloth slides quickly under the cloth pressing pry. The traditional fixed presser foot is not well adapted to the single-sided sewing of the lapel or cloth strip, which causes one side of the cloth pressing pry to press the sewing cloth too tightly, while the other side is relatively loose. During the sewing process, the cloth is easily wrinkled and twisted, which is not conducive to improving the processing quality of the garment. At the same time, the existing sewing presser foot is set separately from the feeding cylinder of the lapel or cloth strip, and they are far apart. During the sewing process, it is necessary to manually adjust the relative position of the lapel or cloth strip and the presser foot from time to time to avoid the lapel or cloth strip from deviating and twisting during the sewing feeding process, which also affects the sewing process efficiency to a certain extent.

[0003] For example, the utility model patent with Chinese patent publication number: CN208395412U and publication date: January 18, 2019 discloses an inner-circle boot-type sewing presser foot, including a presser foot fixing column, characterized in that: a cloth pressing pry is fixedly arranged on one side of the bottom end of the presser foot fixing column, a belt blocking groove is provided on the inner side of the cloth pressing pry, a movable part mounting groove is provided on the other side of the bottom end of the presser foot fixing column, a movable part is installed in the movable part mounting groove through a connecting pin shaft, an arc-shaped platform is provided at the bottom of the movable part near the cloth feeding end, an inclined guide tip is provided on the arc-shaped platform near the cloth feeding end, and a guide groove is also provided at the bottom of the presser foot fixing column. However, the cloth pressing pry of the device is a fixed structure, and the cloth pressing pry is fixed to the presser foot fixing column as a whole, which has poor adaptability to the unilateral sewing of the lapel or cloth strip, and the cloth is easily wrinkled and twisted during the sewing process, and the sewing cylinder and the presser foot are separately arranged, the sewing processing quality is not ideal, the processing efficiency is low, and there are major disadvantages in use. Summary of the invention

[0004] The purpose of the present application is to address the defects and shortcomings of the existing sewing presser foot, which has a fixed structure of the cloth pressing pry, and has poor adaptability to the single-sided sewing of lapel tape or cloth strips. The cloth is easily wrinkled and twisted during the sewing process, and the sewing cylinder and the presser foot are separately arranged, resulting in unsatisfactory sewing processing quality and low processing efficiency. The present application provides a reasonable structure, which adopts a combined cloth pressing pry structure distributed on the left and right, and can be linked while ensuring a certain elasticity, and has good adaptability to the single-sided sewing of lapel tape or cloth strips. The presser foot and the cylinder are arranged together, which effectively avoids the deviation and twisting of the lapel tape or cloth strips during the sewing feeding process, and the production efficiency and processing quality are improved. An elastic adaptive cylinder presser foot is provided.

[0005] To achieve the above-mentioned purpose, the technical solution of the present application is: an elastically adaptive presser foot with a blowing cylinder, comprising a presser foot fixing column, the upper end of which is provided with a U-shaped fixing hole, characterized in that: the lower end of the presser foot fixing column is provided with a mounting groove, both sides of the mounting groove are provided with pin shaft mounting holes, the mounting groove is respectively provided with a first cloth pressing pry and a second cloth pressing pry through a pin shaft, the pin shaft is installed in the pin shaft mounting hole, the front ends of the first cloth pressing pry and the second cloth pressing pry are respectively provided with a cloth pressing pry arc section, a blowing cylinder is fixedly provided on the outer side of the cloth pressing pry arc section of the first cloth pressing pry or the second cloth pressing pry, the upper port of the blowing cylinder is set as a blowing cylinder inlet, the lower port of the blowing cylinder is set as a blowing cylinder outlet, and an elastic structure is installed in the mounting groove and between the first cloth pressing pry or the second cloth pressing pry.

[0006] Furthermore, a first mounting ear is fixedly provided on the upper end of the first cloth pressing pry, an axial hole is opened on the first mounting ear, the first mounting ear is completely or partially located in the mounting groove, and the axial hole is coaxially arranged with the pin shaft mounting hole, and the first mounting ear is connected through the pin shaft.

[0007] Furthermore, a second mounting ear is fixedly provided on the upper end of the second cloth pressing pry, an axial hole is opened on the second mounting ear, the second mounting ear is completely or partially located in the mounting groove, and the axial hole is coaxially arranged with the pin shaft mounting hole, and the second mounting ear is connected via the pin shaft.

[0008] Furthermore, the elastic structure is a spring, one end of the spring presses against the inner upper end of the mounting slot, and the other end of the spring presses against the upper end of the first cloth pressing pry or the second cloth pressing pry away from the arc section of the cloth pressing pry.

[0009] Furthermore, the elastic structure is a metal elastic sheet, one end of which is pressed against the inner upper end of the mounting groove, and the other end of the metal elastic sheet is pressed against the upper end of the first cloth pressing pry or the second cloth pressing pry away from the arc section of the cloth pressing pry.

[0010] Furthermore, a boss is provided on one side of the first mounting ear or the second mounting ear close to the adjacent mounting ear, and the boss is correspondingly matched with the adjacent mounting ear.

[0011] Furthermore, an elastic structure stopper is installed on the outer side of the elastic structure and located on the installation groove.

[0012] Furthermore, the blowing cylinder is a flat cylinder structure made of metal, and the inner wall, blowing cylinder inlet and blowing cylinder outlet of the blowing cylinder are smooth, and the blowing cylinder outlet is close to the bottom of the cloth pressing pry.

[0013] The beneficial effects of this application are:

[0014] 1. The present application has a reasonable structure, which changes the traditional fixed cloth pressing pry structure and adopts a combined cloth pressing pry structure distributed on the left and right. One of the cloth pressing prys is installed with a spring, so that the cloth pressing pry can rotate around the pin shaft at a certain angle, which has a certain elastic squeezing effect on the sewing fabric. At the same time, the cloth pressing pry on the other side will also be linked accordingly, which is very suitable for the sewing requirements of inconsistent heights on the left and right sides caused by the inclusion of a lapel or cloth strip on one side.

[0015] 2. In the present application, a presser foot is fixedly provided on the upturned end of one of the cloth pressing levers. The presser foot is arranged together with the cylinder. The distance between sewing and feeding is very small, which effectively avoids the deviation and twisting of the lapel or cloth strips during the sewing and feeding process. No manual adjustment is required, thereby improving the sewing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram on the left side of this application.

[0017] Figure 2 It is a structural schematic diagram of the rear side of this application.

[0018] Figure 3 It is a schematic diagram of the structure of this application.

[0019] Figure 4 It is a structural schematic diagram of the first cloth pressing pry of the present application.

[0020] Figure 5 It is a structural schematic diagram of the second cloth pressing pry of the present application.

[0021] Figure 6 This is a schematic diagram of the structure of the first cloth pressing pry and the second cloth pressing pry combined in this application.

[0022] In the figure: a presser foot fixing column 1, a U-shaped fixing hole 2, a mounting groove 3, a first cloth pressing pry 4, a first mounting ear 5, a second cloth pressing pry 6, a second mounting ear 7, a boss 8, a pin 9, a spring 10, an elastic structure stopper 11, a cloth pressing pry arc section 12, a cooling cylinder 13, a cooling cylinder inlet 14, and a cooling cylinder outlet 15. DETAILED DESCRIPTION

[0023] The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] See also Figures 1 to 6The present application discloses an elastically adaptive presser foot with a blowing cylinder, comprising a presser foot fixing column 1, wherein a U-shaped fixing hole 2 is provided at the upper end of the presser foot fixing column 1, and the characteristic is that a mounting groove 3 is provided at the lower end of the presser foot fixing column 1, and pin shaft mounting holes are provided on both sides of the mounting groove 3, and a first cloth pressing pry 4 and a second cloth pressing pry 6 are respectively installed in the mounting groove 3 through a pin shaft 9, and the pin shaft 9 is installed in the pin shaft mounting hole, and a cloth pressing pry arc section 12 is respectively provided at the front end of the first cloth pressing pry 4 and the second cloth pressing pry 6, and a blowing cylinder 13 is fixedly provided on the outer side of the cloth pressing pry arc section 12 of the first cloth pressing pry 4 or the second cloth pressing pry 6, and the upper port of the blowing cylinder 13 is set as a blowing cylinder inlet 14, and the lower port of the blowing cylinder 13 is set as a blowing cylinder outlet 15, and an elastic structure is installed in the mounting groove 3 and between the first cloth pressing pry 4 or the second cloth pressing pry 6.

[0025] A first mounting ear 5 is fixedly provided on the upper end of the first cloth pressing pry 4, and an axial hole is opened on the first mounting ear 5. The first mounting ear 5 is completely or partially located in the mounting groove 3, and the axial hole is coaxially arranged with the pin shaft mounting hole. The first mounting ear 5 is connected by a pin shaft 9.

[0026] A second mounting ear 7 is fixedly provided on the upper end of the second cloth pressing pry 6 , and an axial hole is opened on the second mounting ear 7 . The second mounting ear 7 is completely or partially located in the mounting groove 3 , and the axial hole is coaxially arranged with the pin shaft mounting hole. The second mounting ear 7 is connected via a pin shaft 9 .

[0027] The elastic structure is a spring 10, one end of the spring 10 presses against the inner upper end of the mounting groove 3, and the other end of the spring 10 presses against the upper end of the first cloth pressing pry 4 or the second cloth pressing pry 6 away from the cloth pressing pry arc section 12.

[0028] The elastic structure is a metal elastic sheet, one end of which is pressed against the inner upper end of the mounting groove 3 , and the other end of the metal elastic sheet is pressed against the upper end of the first cloth pressing pry 4 or the second cloth pressing pry 6 away from the cloth pressing pry arc section 12 .

[0029] A boss 8 is provided on one side of the first mounting ear 5 or the second mounting ear 7 close to the adjacent mounting ear, and the boss 8 is correspondingly matched with the adjacent mounting ear.

[0030] An elastic structure stopper 11 is installed on the outer side of the elastic structure and located on the installation groove 3 .

[0031] The blowing cylinder 13 is a flat cylinder structure made of metal, and the inner wall, blowing cylinder inlet 14 and blowing cylinder outlet 15 of the blowing cylinder 13 are smooth, and the blowing cylinder outlet 15 is close to the bottom of the cloth pressing pry.

[0032] As attached Figures 1 to 6As shown, the present application changes the structure of the traditional integrated cloth pressing pry, and divides the cloth pressing pry into two halves, a left halves and a right halves, a compression spring is connected between one half of the cloth pressing pry and the installation slot where the cloth pressing pry is installed, and at the same time, the half of the cloth pressing pry installed with the compression spring overlaps and presses the other half of the cloth pressing pry through a boss, so that both halves of the cloth pressing pry have pressure elasticity, and a heating tube is fixedly arranged on the outer side of the arc section of the cloth pressing pry of the half of the cloth pressing pry installed with the compression spring, and the thickened cloth strip passes through the heating tube and enters the bottom of the cloth pressing pry, and the heating tube can shape and limit the thickened cloth strip to be sewn, so that the thickened cloth strip can be sewn beautifully and straightly during the process of sewing on the cloth, and the sewing processing quality is good. The specific structure of the present application is as follows:

[0033] The present application includes a presser foot fixing column 1, the upper end of which is provided with a U-shaped fixing hole 2 for connecting a sewing machine head, the lower end of which is provided with a mounting groove 3 for mounting a cloth press pry, and the lower end of the presser foot fixing column 1 and the two side walls of the mounting groove 3 are provided with through pin shaft mounting holes.

[0034] The cloth pressing pry includes a first cloth pressing pry 4 and a second cloth pressing pry 6. A first mounting ear 5 is fixedly arranged on the upper end surface of the rear end of the first cloth pressing pry 4, and a second mounting ear 7 is fixedly arranged on the upper end surface of the rear end of the second cloth pressing pry 6. The first mounting ear 5 and the second mounting ear 7 are respectively provided with penetrating pin mounting holes. A pin 9 penetrates the pin mounting holes on the first mounting ear 5, the second mounting ear 7 and the lower end of the presser foot fixing column 1. Through the pin 9, the mounting ears of the first cloth pressing pry 4 and the second cloth pressing pry 6 are rotatably connected to the pin 9 and are located in the mounting groove 3.

[0035] The front ends of the first cloth pressing pry 4 and the second cloth pressing pry 6 are both cloth pressing pry arc sections 12, and a heating tube 13 is fixedly connected to the lower arc surface of the cloth pressing pry arc section 12 of the second cloth pressing pry 6. The heating tube 13 is a flat tube structure made of metal, and the upper end of the heating tube 13 is set as a heating tube inlet 14, and the lower end of the heating tube 13 is set as a heating tube outlet 15. The inner wall of the heating tube 13, the heating tube inlet 14 and the heating tube outlet 15 are smooth, and the heating tube outlet 15 is close to the bottom of the second cloth pressing pry 6. The thickened cloth strips to be sewn are inserted from the heating tube inlet 14 and are sent to the bottom surface of the second cloth pressing pry 6 after passing through the heating tube outlet 15 and are pressed by the second cloth pressing pry 6. During the sewing process of the thickened cloth strips to be sewn, the heating tube 13 can shape and limit the cloth strips, so that the thickened cloth strips can be sewn beautifully and straightly, and the sewing processing quality is good.

[0036] During the sewing process, in order to allow the first cloth-pressing pry 4 and the second cloth-pressing pry 6 to press the cloth with elasticity, an elastic structure is installed in the installation groove 3 and between the second cloth-pressing pry 6. The elastic structure can be a spring 10 or a metal elastic sheet. When the elastic structure adopts a spring 10, one end of the spring 10 presses against the inner upper end of the installation groove 3, and the other end of the spring 10 presses against the second mounting ear 7 on the second cloth-pressing pry 6; when the elastic structure adopts a metal elastic sheet, one end of the metal elastic sheet presses against the inner upper end of the installation groove 3, and the other end of the metal elastic sheet presses against the second mounting ear 7 on the second cloth-pressing pry 6. In order to limit the spring 10 and prevent the spring 10 from falling off, elastic structure stoppers 11 are installed on the front and rear sides of the spring 10 and located on the installation groove 3. The elastic structure stoppers 11 on both sides limit the spring 10 between the structure stoppers 11 on both sides, thereby preventing the spring 10 from falling off. Under the pressure of the spring 10, the second cloth-pressing pry 6 has pressure elasticity.

[0037] When the second cloth pressing pry 6 has pressure elasticity, in order to make the first cloth pressing pry 4 also have pressure elasticity, a boss 8 is provided on the side of the second mounting ear 7 close to the first mounting ear 5, and a step surface corresponding to the boss 8 is provided on the first cloth pressing pry 4. The second cloth pressing pry 6 overlaps and presses the first cloth pressing pry 4 through the boss 8, so that the first cloth pressing pry 4 also has pressure elasticity.

[0038] The above content is a further detailed description of the present application in combination with the specific implementation methods. It cannot be considered that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, simple replacements made without departing from the concept of the present application should be deemed to fall within the scope of protection of the present application.

Claims

1. An elastically adaptable presser foot, comprising a presser foot fixing column (1), wherein a U-shaped fixing hole (2) is formed at the upper end of the presser foot fixing column (1), and wherein: The lower end of the presser foot fixing column (1) is provided with a mounting groove (3), and pin shaft mounting holes are provided on both sides of the mounting groove (3). A first cloth pressing pry (4) and a second cloth pressing pry (6) are respectively mounted in the mounting groove (3) through pin shafts (9), and the pin shaft (9) is mounted in the pin shaft mounting holes. The front ends of the first cloth pressing pry (4) and the second cloth pressing pry (6) are respectively provided with cloth pressing pry arc sections (12). A heating cylinder (13) is fixedly arranged on the outer side of the cloth pressing pry arc section (12) of the first cloth pressing pry (4) or the second cloth pressing pry (6), and the upper end of the heating cylinder (13) is arranged as a heating cylinder inlet (14), and the lower end of the heating cylinder (13) is arranged as a heating cylinder outlet (15). An elastic structure is installed in the mounting groove (3) and between the first cloth pressing pry (4) or the second cloth pressing pry (6).

2. The elastic adaptive presser foot according to claim 1, characterized in that: A first mounting ear (5) is fixedly provided at the upper end of the first cloth pressing pry (4), an axial hole is provided on the first mounting ear (5), the first mounting ear (5) is completely or partially located in the mounting groove (3), and the axial hole is coaxially arranged with the pin shaft mounting hole, and the first mounting ear (5) is connected via a pin shaft (9).

3. The elastic adaptive presser foot according to claim 1, characterized in that: A second mounting ear (7) is fixedly provided at the upper end of the second cloth pressing pry (6), an axial hole is provided on the second mounting ear (7), the second mounting ear (7) is completely or partially located in the mounting groove (3), the axial hole is coaxially arranged with the pin shaft mounting hole, and the second mounting ear (7) is connected via a pin shaft (9).

4. The elastic adaptive presser foot according to claim 1, characterized in that: The elastic structure is a spring (10), one end of the spring (10) is pressed against the inner upper end of the mounting groove (3), and the other end of the spring (10) is pressed against the upper end of the first cloth pressing pry (4) or the second cloth pressing pry (6) away from the cloth pressing pry arc section (12).

5. The elastic adaptive presser foot according to claim 1, characterized in that: The elastic structure is a metal elastic sheet, one end of which is pressed against the inner upper end of the mounting groove (3), and the other end of which is pressed against the upper end of the first cloth pressing pry (4) or the second cloth pressing pry (6) away from the cloth pressing pry arc section (12).

6. The elastic adaptive presser foot according to claim 2, characterized in that: A boss (8) is provided on one side of the first mounting ear (5) or the second mounting ear (7) close to the adjacent mounting ear, and the boss (8) is correspondingly matched with the adjacent mounting ear.

7. The elastic adaptive presser foot according to claim 1, characterized in that: An elastic structure stopper (11) is installed on the outside of the elastic structure and located on the installation groove (3).

8. The elastic adaptive presser foot according to claim 1, characterized in that: The blowing cylinder (13) is a flat cylinder structure made of metal, and the inner wall, blowing cylinder inlet (14) and blowing cylinder outlet (15) of the blowing cylinder (13) are smooth, and the blowing cylinder outlet (15) is close to the bottom of the cloth pressing pry.

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