Pit-falling presser foot structure of double-needle machine

Abstract

The utility model is applicable to the technical field of presser feet, and provides a double-needle machine pit-falling presser foot structure which comprises a presser foot main body and a machine body movable rod, the presser foot main body is connected with a pressing rod through a rotating mechanism, a pressing mechanism and a limiting mechanism are arranged in the pressing rod, and inserting mechanisms are arranged in the pressing rod and on the side wall of the machine body movable rod. According to the utility model, through the arrangement of the pressing mechanism, the limiting mechanism and the plugging mechanism, a pressing block in the pressing mechanism is pressed, a first inclined surface and a third inclined surface extrude in the moving process of the pressing block, the extrusion force enables an L-shaped clamping block in the limiting mechanism to move towards the direction of a second spring, and the limiting of an insertion block in the plugging mechanism is relieved in the moving process; the pressing rod and the pressing foot body are taken out, the inserting groove of a new pressing foot is aligned with the inserting block to be pressed, the second inclined face and the fourth inclined face extrude, the extrusion force enables the L-shaped clamping block to move towards the second spring, the inserting block completely enters the inserting groove, the L-shaped clamping block clamps the inserting block, and the pressing foot is replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of presser feet, in particular to a double-needle machine pit presser foot structure. Background Art

[0002] The double-needle sewing machine is a commonly used sewing machine that has two needles that work in two or three synchronizations and can sew corners to produce two parallel threads. The double needles have high efficiency and the two parallel threads are regular and beautiful. The presser foot is a component that exerts pressure on the surface of the sewing material to assist the work of the double-needle machine.

[0003] In the prior art, the presser foot is easily damaged after long-term use and needs to be replaced. When different materials need to be sewn, the distance between the double needles is different. At this time, the presser foot also needs to be replaced, and the replacement is relatively frequent. One way to replace the presser foot in the prior art is to use a screwdriver to remove the screw on the presser foot, remove the presser foot, and tighten the screw with a screwdriver after changing the presser foot. Because the presser foot is small, it is not easy to align when using a screwdriver, which is time-consuming and laborious. Based on this, in order to facilitate the replacement of the presser foot, a double-needle machine pit presser foot structure is proposed. Utility Model Content

[0004] The utility model provides a double-needle machine pit presser foot structure, aiming to solve the problem of difficult presser foot replacement mentioned in the above background technology.

[0005] The utility model is realized in this way. A double-needle machine pit presser foot structure comprises a presser foot body, the presser foot body is connected with a press rod through a rotating mechanism, a body movable rod is installed on the double-needle machine, a pressing mechanism and a limiting mechanism are arranged in the press rod, the pressing mechanism contacts the limiting mechanism, a plug-in mechanism is arranged in the press rod and on the side wall of the body movable rod, and the plug-in mechanism contacts the limiting mechanism;

[0006] The rotating mechanism in the rotating state is used to rotate the presser foot body;

[0007] The pressing mechanism in the pressing state is used to release the limiting mechanism from limiting;

[0008] The limiting mechanism in the limiting state is used to limit the movement of the plug-in mechanism;

[0009] The plug-in mechanism in the plug-in state is used to connect the pressure rod and the machine body movable rod.

[0010] Preferably, the rotating mechanism comprises a rotating shaft and a circular groove;

[0011] The two circular grooves are arranged on one side close to the protrusion of the presser foot body, the two rotating shafts are formed on both sides of the lower end of the press rod, and the two rotating shafts are rotatably connected to the inner walls of the two circular grooves respectively.

[0012] Preferably, the pressing mechanism comprises a pressing block, a sliding block and a spring No. 1;

[0013] One end of the pressing block slides inside the pressure rod, and one end of the pressing block is formed with two first inclined surfaces, and the other end of the pressing block penetrates through the side wall of the pressure rod, the two sliding blocks are fixedly connected to the upper and lower sides of the pressing block, and the two ends of the No. 1 spring are fixedly connected to the inside of the pressure rod and one end of the pressing block.

[0014] Preferably, the plug-in mechanism comprises an insert block and a slot;

[0015] The slot is opened on a side of the pressure rod close to the machine body movable rod, the plug block is fixedly connected to a side of the machine body movable rod close to the pressure rod, and the plug block is formed with two second inclined surfaces, and the slot is used for plugging the plug block.

[0016] Preferably, the limiting mechanism comprises a No. 2 spring and an L-shaped block;

[0017] One end of the two symmetrically arranged L-shaped blocks slides inside the pressure rod, and the other end of the L-shaped block penetrates into the inner cavity of the slot, a third inclined surface is formed at the position where one end of the L-shaped block contacts the first inclined surface, and a fourth inclined surface is formed at the position where the other end of the L-shaped block contacts the second inclined surface, and the two ends of the two No. 2 springs are fixedly connected to one end of the L-shaped block and the inside of the pressure rod.

[0018] Preferably, two needle grooves are provided on the presser foot body.

[0019] Preferably, under normal conditions, the limiting mechanism just clamps the head of the plug block, so that the plug block cannot move.

[0020] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0021] The utility model provides a pressing mechanism, a limiting mechanism and an inserting mechanism, and the pressing block in the pressing mechanism is pressed. During the movement of the pressing block, the first inclined surface and the third inclined surface are squeezed, and the squeezing force causes the L-shaped clamping block in the limiting mechanism to move in the direction of the second spring. During the movement, the limiting of the inserting block in the inserting mechanism is released, the pressing rod and the presser foot body are taken out, the slot of the new presser foot is aligned with the inserting block and pressed, and the second inclined surface and the fourth inclined surface are squeezed. The squeezing force causes the L-shaped clamping block to move in the direction of the second spring, and the inserting block completely enters the slot. The L-shaped clamping block clamps the inserting block, and the presser foot is replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram provided by the utility model;

[0023] Figure 2It is a schematic diagram of the structure of the rotating mechanism provided by the utility model;

[0024] Figure 3 It is a schematic diagram of the structure of the pressing mechanism and the plugging mechanism provided by the utility model;

[0025] Figure 4 It is a cross-sectional view of the pressure rod and the machine body movable rod provided by the utility model;

[0026] Figure 5 It is a structural schematic diagram of a pressing mechanism, a limiting mechanism and a plug-in mechanism provided by the utility model.

[0027] In the figure: 1. Presser foot body; 2. Needle groove; 3. Press rod; 4. Machine body movable rod; 5. Press block; 6. Rotating shaft; 7. Round groove; 8. Insert block; 9. Slot; 10. Slider; 11. No. 1 spring; 12. No. 2 spring; 13. L-shaped block. DETAILED DESCRIPTION

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0029] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] The utility model embodiment provides a double needle machine pit presser foot structure, such as Figure 1-5 As shown, it includes a presser foot body 1, the presser foot body 1 is connected to a press rod 3 through a rotating mechanism, a body movable rod 4 is installed on the double-needle machine, a pressing mechanism and a limiting mechanism are arranged in the press rod 3, the pressing mechanism contacts the limiting mechanism, a plug-in mechanism is arranged in the press rod 3 and on the side wall of the body movable rod 4, and the plug-in mechanism contacts the limiting mechanism;

[0031] The rotating mechanism in the rotating state is used to rotate the presser foot body 1 at a small angle;

[0032] The pressing mechanism in the pressing state is used to release the limit of the limit mechanism;

[0033] The limiting mechanism in the limiting state is used to limit the movement of the plug-in mechanism;

[0034] The plug-in mechanism in the plug-in state is used to connect the pressure rod 3 and the machine body movable rod 4.

[0035] In this embodiment, when the presser foot needs to be replaced, the pressing block 5 in the pressing mechanism is pressed. During the movement of the pressing block 5, the first inclined surface and the third inclined surface are squeezed. The squeezing force causes the L-shaped block 13 in the limiting mechanism to move in the direction of the second spring 12. During the movement, the limit on the plug-in block 8 in the plug-in mechanism is released, the pressure rod 3 and the presser foot body 1 are taken out, and the slot 9 of the new presser foot is aligned with the plug-in block 8 and pressed. The second inclined surface and the fourth inclined surface are squeezed. The squeezing force causes the L-shaped block 13 to move in the direction of the second spring 12, and the plug-in block 8 completely enters the slot 9. The L-shaped block 13 clamps the plug-in block 8, thereby realizing the replacement of the presser foot.

[0036] In a further preferred embodiment of the present invention, Figure 2 As shown, the rotating mechanism includes a rotating shaft 6 and a circular groove 7;

[0037] Two circular grooves 7 are provided on one side close to the protrusion of the presser foot body 1 , two rotating shafts 6 are formed on both sides of the lower end of the press rod 3 , and the two rotating shafts 6 are rotatably connected to the inner walls of the two circular grooves 7 respectively.

[0038] In this embodiment, when the double-needle machine is working, the presser foot body 1 slightly shakes on the pressure rod 3, and the rotating shaft 6 rotates in the circular groove 7, so that the rotating mechanism in the rotating state rotates the presser foot body 1, making the double-needle machine work more conveniently.

[0039] In a further preferred embodiment of the present invention, Figure 1 , 3 As shown in -5, the pressing mechanism includes a pressing block 5, a slider 10 and a spring 11;

[0040] One end of the pressing block 5 slides inside the pressure rod 3, and one end of the pressing block 5 is formed with two first inclined surfaces, and the other end of the pressing block 5 penetrates through the side wall of the pressure rod 3, two sliders 10 are fixedly connected to the upper and lower sides of the pressing block 5, and both ends of the No. 1 spring 11 are fixedly connected to the inside of the pressure rod 3 and one end of the pressing block 5.

[0041] In this embodiment, when it is necessary to release the limit of the limiting mechanism, the pressing block 5 is pressed, and the pressing block 5 drives the slider 10 to move in the direction of the No. 1 spring 11. During the movement, the first inclined surface and the third inclined surface are squeezed to make the L-shaped block 13 move in the direction of the No. 2 spring 12, so that the pressing mechanism in the pressed state releases the limit of the limiting mechanism, and the pressing block 5 is released. Under the elastic force of the No. 1 spring 11, the pressing block 5 drives the slider 10 to bounce back to its original position, and the slider 10 prevents the pressing block 5 from falling.

[0042] In a further preferred embodiment of the present invention, Figure 3-5 As shown, the plug-in mechanism includes an insert block 8 and a slot 9;

[0043] The slot 9 is opened on the side of the pressure rod 3 close to the body movable rod 4, the plug block 8 is fixedly connected to the side of the body movable rod 4 close to the pressure rod 3, and the plug block 8 is formed with two second inclined surfaces, and the slot 9 is for the plug block 8 to be inserted.

[0044] In this embodiment, when it is necessary to connect the pressure rod 3 and the body movable rod 4, the plug-in block 8 is aligned with the slot 9 and inserted, and the second inclined surface and the fourth inclined surface are squeezed to make the L-shaped block 13 move in the direction of the second spring 12. When the plug-in block 8 is fully inserted into the slot 9, the L-shaped block 13 bounces back to its original position, limiting the movement of the plug-in block 8, thereby realizing the plug-in state of the plug-in mechanism connecting the pressure rod 3 and the body movable rod 4.

[0045] In a further preferred embodiment of the present invention, Figure 4-5 As shown, the limiting mechanism includes a No. 2 spring 12 and an L-shaped block 13;

[0046] One end of two symmetrically arranged L-shaped blocks 13 slide inside the pressure rod 3, and the other end of the L-shaped block 13 penetrates into the inner cavity of the slot 9, a third inclined surface is formed at the position where one end of the L-shaped block 13 contacts the first inclined surface, and a fourth inclined surface is formed at the position where the other end of the L-shaped block 13 contacts the second inclined surface, and the two ends of the two No. 2 springs 12 are fixedly connected to one end of the L-shaped block 13 and the inside of the pressure rod 3.

[0047] In this embodiment, when it is necessary to limit the movement of the plug block 8, the plug block 8 is inserted into the slot 9. During the movement of the plug block 8, the second inclined surface and the fourth inclined surface are squeezed, and the squeezing force enables the L-shaped block 13 to move in the direction of the No. 2 spring 12. During the movement, the No. 2 spring 12 is squeezed. When the plug block 8 continues to move forward, the plug block 8 is separated from the L-shaped block 13. Under the elastic force of the No. 2 spring 12, the L-shaped block 13 rebounds to its original position and jams the plug block 12, thereby realizing a limiting mechanism in a limiting state to limit the movement of the plug-in mechanism.

[0048] In a further preferred embodiment of the present invention, Figure 1-2 As shown, two needle grooves 2 are provided on the presser foot body 1 .

[0049] In this embodiment, the needle slot 2 enables the two needles on the double-needle machine to work synchronously.

[0050] In a further preferred embodiment of the present invention, Figure 3-5 As shown, under normal conditions, the limiting mechanism just clamps the head of the insert block 8, making the insert block 8 unable to move.

[0051] In this embodiment, the limiting mechanism makes the inserting block 8 work without movement, and the inserting block 8 will not move to affect the operation of the double-needle machine.

[0052] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0053] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0054] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0055] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A double-needle machine pit presser foot structure, comprising a presser foot body (1), wherein the presser foot body (1) is connected to a press rod (3) via a rotating mechanism, and a body movable rod (4) is installed on the double-needle machine, characterized in that: A pressing mechanism and a limiting mechanism are arranged in the pressure rod (3), the pressing mechanism contacts the limiting mechanism, a plug-in mechanism is arranged in the pressure rod (3) and on the side wall of the machine body movable rod (4), the plug-in mechanism contacts the limiting mechanism; The rotating mechanism in the rotating state is used to rotate the presser foot body (1); The pressing mechanism in the pressing state is used to release the limiting mechanism from limiting; The limiting mechanism in the limiting state is used to limit the movement of the plug-in mechanism; The plug-in mechanism in the plug-in state is used to connect the pressure rod (3) and the machine body movable rod (4).

2. A double needle machine presser foot structure according to claim 1, characterized in that: The rotating mechanism comprises a rotating shaft (6) and a circular groove (7); The two circular grooves (7) are arranged on one side close to the protrusion of the presser foot body (1), the two rotating shafts (6) are formed on both sides of the lower end of the press rod (3), and the two rotating shafts (6) are rotatably connected to the inner walls of the two circular grooves (7) respectively.

3. A double needle machine presser foot structure according to claim 1, characterized in that: The pressing mechanism comprises a pressing block (5), a sliding block (10) and a spring (11); One end of the pressing block (5) slides inside the pressing rod (3), and one end of the pressing block (5) is formed with two first inclined surfaces, and the other end of the pressing block (5) penetrates the side wall of the pressing rod (3), the two sliding blocks (10) are fixedly connected to the upper and lower sides of the pressing block (5), and the two ends of the No. 1 spring (11) are fixedly connected to the inside of the pressing rod (3) and one end of the pressing block (5).

4. A double needle machine presser foot structure according to claim 3, characterized in that: The plug-in mechanism comprises an insert block (8) and a slot (9); The slot (9) is provided on a side of the pressure rod (3) close to the machine body movable rod (4), the plug block (8) is fixedly connected to a side of the machine body movable rod (4) close to the pressure rod (3), and the plug block (8) is formed with two second inclined surfaces, and the slot (9) is provided for the plug block (8) to be plugged in.

5. A double needle machine presser foot structure according to claim 4, characterized in that: The limiting mechanism comprises a No. 2 spring (12) and an L-shaped clamping block (13); One end of the two symmetrically arranged L-shaped blocks (13) slides inside the pressure rod (3), and the other end of the L-shaped block (13) penetrates into the inner cavity of the slot (9), a third inclined surface is formed at the position where one end of the L-shaped block (13) contacts the first inclined surface, and a fourth inclined surface is formed at the position where the other end of the L-shaped block (13) contacts the second inclined surface, and both ends of the two No. 2 springs (12) are fixedly connected to one end of the L-shaped block (13) and the inside of the pressure rod (3).

6. A double needle machine presser foot structure according to claim 1, characterized in that: The presser foot body (1) is provided with two needle grooves (2).

7. A double needle machine presser foot structure according to claim 4, characterized in that: Under normal conditions, the limiting mechanism just clamps the head of the insert block (8), making the insert block (8) unable to move.

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