Presser foot assembly, embroidery machine head with presser foot assembly and embroidery machine

Abstract

The utility model relates to the technical field of embroidery equipment, in particular to a presser foot assembly, an embroidery machine head with the presser foot assembly and an embroidery machine, the presser foot assembly comprises a presser foot, the presser foot comprises a pressing portion used for pressing cloth, and the pressing portion is provided with a pressing face used for making contact with the cloth; the presser foot buckle is detachably and fixedly connected to the presser foot, and the presser foot buckle comprises a presser foot buckle body covering the material pressing surface; the presser foot buckle body is provided with a side face which is opposite to the material pressing part and used for being connected with cloth, and a top pressing part is formed on the side face. According to the presser foot assembly with the detachable presser foot buckle, when the presser foot assembly is used for embroidering, the presser foot does not need to be disassembled / assembled, and only the presser foot buckle needs to be disassembled / assembled, so that a jacking structure (a structure for jacking the cloth) matched with different cloth can be formed more quickly and conveniently, and the overall embroidering production efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of embroidery equipment, and more specifically to a presser foot assembly, an embroidery machine head with the presser foot assembly, and an embroidery machine. Background Art

[0002] The presser foot of an embroidery machine is a part of the embroidery machine, and its function is to fix and control the movement of the embroidery material to ensure the accuracy and stability during the embroidery process.

[0003] For example, a presser foot mechanism, an embroidery machine head and an embroidery machine disclosed in the patent with the publication number CN220450465U; when this presser foot mechanism works, the rotating presser foot cam drives the first swing arm on the driving wheel to swing upward through the link assembly, so as to realize the upward pushing of the convex block part, and further drive the presser foot assembly to move upward, providing a moving space for the fabric to flow out; and the rotating presser foot cam drives the first swing arm on the driving wheel to swing downward through the link assembly, and under the action of its own gravity of the presser foot assembly, the presser foot assembly can move downward to realize the pressing and fixing of the bottom of the presser foot on the fabric.

[0004] It should be noted that currently, there are many patterns in computer embroidery machines, such as towel embroidery, rope embroidery, ribbon embroidery, etc.; for some fabrics, a presser foot with a larger pressing area is required for pressing; therefore, when switching to embroidering this kind of fabric, a presser foot with a larger pressing area must be installed, and the disassembly and assembly of the presser foot are very difficult, which will greatly affect the overall embroidery production efficiency. Summary of the Utility Model

[0005] The purpose of the utility model is to provide, in view of the deficiencies of the prior art: a presser foot assembly with a detachable presser foot buckle. When this presser foot assembly is used for embroidery, there is no need to disassemble / assemble the presser foot, and only by disassembling / assembling the presser foot buckle, a pressing structure (the structure for pressing the fabric) adapted to different fabrics can be formed more quickly and conveniently, so as to improve the overall embroidery production efficiency.

[0006] The technical solution of the utility model is as follows:

[0007] The presser foot assembly includes:

[0008] A presser foot, which includes a pressing part for pressing the fabric, and the pressing part has a pressing surface for contacting the fabric;

[0009] A presser foot buckle, which is detachably fixed to the presser foot, and the presser foot buckle includes: a presser foot buckle body covering the pressing surface;

[0010] The presser foot buckle body has a side surface facing away from the pressing part and for contacting the fabric, and a pressing part is formed on this side surface.

[0011] Further as a preferred solution, the presser foot buckle is detachably buckled to the presser part through a buckling structure.

[0012] Further as a preferred solution, the buckling structure includes:

[0013] A first buckling post disposed on the presser foot buckle body and protruding toward the presser part, and a first buckling part is formed protruding on the side thereof and placed on the side of the presser part facing away from the presser foot buckle body;

[0014] A second buckling post disposed on the presser foot buckle body and protruding toward the presser part, and a second buckling part is formed protruding on the side thereof and placed on the side of the presser part facing away from the presser foot buckle body;

[0015] The first buckling post and the second buckling post are respectively placed on both sides of the presser part, and both the first buckling post and the second buckling post are elastically arranged.

[0016] Further as a preferred solution, the presser foot buckle body is further provided with: a positioning part protruding toward the presser foot buckle body;

[0017] A plurality of positioning parts are all attached to the presser part and are spaced apart and distributed around the outer periphery of the presser part.

[0018] Further as a preferred solution, the first buckling part is provided with: a first guiding part for guiding the presser part to be buckled between the first buckling post and the second buckling post.

[0019] Further as a preferred solution, the second buckling part is provided with: a second guiding part for guiding the presser part to be buckled between the first buckling post and the second buckling post.

[0020] The embroidery machine head includes the presser foot assembly in any of the above solutions.

[0021] Further as a preferred solution, the embroidery machine head further includes a needle pushing assembly and a needle pushing assembly driving device;

[0022] The needle pushing assembly driving device is connected to the needle pushing assembly and can drive the needle pushing assembly to slide, so that the needle pushing assembly approaches or moves away from the presser foot assembly.

[0023] Further as a preferred solution, the embroidery machine head further includes:

[0024] A bracket member fixed to the frame, which has a sliding part extending obliquely, and the needle pushing assembly is slidably connected to the sliding part to be able to slide in the oblique direction.

[0025] The embroidery machine includes the presser foot assembly in any of the above solutions, or includes the embroidery machine head in any of the above solutions.

[0026] The main beneficial effects of the above technical solutions are as follows:

[0027] The presser foot and the detachable presser foot buckle together form a presser foot assembly. When this presser foot assembly is used for embroidery, it is realized that there is no need to disassemble / install the presser foot. Only by disassembling / installing the presser foot buckle can a pressing structure (a structure for pressing the fabric) adapted to different fabrics be formed more quickly and conveniently, so as to improve the overall embroidery production efficiency.

[0028] Further or more detailed beneficial effects will be described in combination with specific embodiments in the specific implementation manner. Brief Description of the Drawings

[0029] The following further describes the present invention with reference to the drawings:

[0030] Figure 1 It is a schematic structural diagram of an embroidery machine head.

[0031] Figure 2 It is a schematic structural diagram of a needle bar and a needle-pushing component.

[0032] Figure 3 It is a schematic structural diagram of a needle bar.

[0033] Figure 4 It is a schematic structural diagram of a presser foot assembly.

[0034] Figure 5 It is a schematic assembly structural diagram of a presser foot assembly.

[0035] Figure 6 It is a presser foot structure with a loop.

[0036] As shown in the figure: frame - 1, needle bar - 2, slider - 2.1, presser foot - 3, collar - 3.1, connecting rod - 3.2, presser foot bar - 3.3, pressing part - 3.4, first needle-passing hole - 3.5, loop - 3.6, presser foot buckle - 4, presser foot buckle body - 4.1, second needle-passing hole - 4.11, first buckling post - 4.2, first buckling part - 4.21, first guiding part - 4.22, second buckling post - 4.3, second buckling part - 4.31, second guiding part - 4.32, positioning part - 4.4, needle-pushing component - 5, needle pusher - 5.1, rotating motor - 5.2, needle-pushing component driving device - 6, support member - 7. Specific Implementation Manner

[0037] The following specifically exemplifies the present invention in combination with embodiments:

[0038] Embodiment:

[0039] An embroidery machine is a machine used to embroider on fabric to form embroidered products. An embroidery machine generally includes a table for placing the fabric, and an embroidery machine head for embroidering the fabric placed on the table.

[0040] As shown in the atta Figure 1As shown in the figure, for an embroidery machine head, it includes a frame 1 and a needle bar 2 disposed in the frame 1. At the lower end of the needle bar 2, an embroidery needle is often provided. At the same time, in order to fix the fabric during embroidery and prevent the fabric from moving during the embroidery process, a presser foot 3 for pressing and fixing the fabric is often provided.

[0041] As shown in the append Figure 1 ix to the append Figure 3 ix, a sliding block 2.1 that can slide up and down is sleeved on the needle bar 2. At the same time, a presser foot 3 that can move up and down is connected to the needle bar 2. The presser foot 3 is fixed to the sliding block 2.1 so as to move up and down with the sliding block 2.1. At the same time, a driving device for driving the sliding block 2.1 to lift and lower is also provided in the embroidery machine head. This driving device is set with reference to a presser foot mechanism, an embroidery machine head and an embroidery machine disclosed in the publication number CN220450465U, and will not be elaborated here.

[0042] During fabric embroidery, the driving device drives the presser foot 3 to move downward to press and fix the fabric, preventing the fabric from moving so that the embroidery needle can embroider stably. When not embroidering but needing to move the fabric, the driving device drives the presser foot 3 to move upward, causing the presser foot 3 to leave the fabric to create a space for the fabric to move.

[0043] In this embodiment, the presser foot 3 includes a collar 3.1 sleeved on the needle bar 2. An upward-extending connecting rod 3.2 is provided on the collar 3.1. The connecting rod 3.2 is preferably fixed to the sliding block 2.1 by, for example, a screw, so that the presser foot 3 can move up and down with the sliding block 2.1 as described above. A presser foot rod 3.3 extending downward is also provided on the collar 3.1. A pressing portion 3.4 for pressing the fabric is provided on the presser foot rod 3.3. The pressing portion 3.4 has a pressing surface for contacting the fabric. Refer to the append Figure 1 ix to the append Figure 5 ix. As shown, this pressing surface is generally the lower end surface of the pressing portion 3.4.

[0044] During fabric embroidery, the driving device drives the presser foot 3 to move downward, and the lower end surface (pressing surface) of the pressing portion 3.4 presses on the fabric to press and fix the fabric.

[0045] For a presser foot 3, the area of the pressing surface on its pressing portion 3.4 is fixed. However, currently, there are many patterns in computer embroidery machines, such as towel embroidery, rope embroidery, ribbon embroidery, etc. For some fabrics, a presser foot 3 with a larger pressing area (a presser foot 3 with a larger pressing surface area) is required for pressing. Therefore, when switching to embroider this fabric, a presser foot 3 with a larger pressing area must be installed, and the disassembly and assembly of the presser foot 3 are very difficult, which will greatly affect the overall embroidery production efficiency.

[0046] Based on this, in this embodiment, a presser foot assembly with a presser foot buckle 4 is proposed.

[0047] As shown in the attached Figure 3 to the attached Figure 5 As shown, the presser foot buckle 4 is detachably fixed to the presser foot 3, and the presser foot buckle 4 includes: a presser foot buckle body 4.1 covering the presser surface; the presser foot buckle body 4.1 has a side surface (such as the lower end surface of the presser foot buckle body 4.1 in the attached Figure 4 ), which faces away from the presser part 3.4 and is used to contact the fabric, and a pressing part is formed on this side surface.

[0048] At this time, when embroidering the fabric, when the driving device drives the presser foot 3 to move downward, the presser part 3.4 presses and fixes the fabric through the presser foot buckle 4. Specifically, it is the presser part 3.4 that presses and fixes the fabric through the pressing part at the lower end of the presser foot buckle 4. The pressing part is set according to specific needs. When a larger pressing area is required for the fabric, the pressing part is preferably a flat structure with an area larger than the presser surface. Of course, according to different needs, the pressing part can be set in different sizes or different structures, and those skilled in the art can select and set according to actual needs, so it will not be elaborated here in detail.

[0049] That is, by jointly forming a presser foot assembly with the presser foot 3 and the detachable presser foot buckle 4, when using this presser foot assembly for embroidery, there is no need to disassemble / assemble the presser foot 3. Only by disassembling / assembling the presser foot buckle 4 can a pressing structure (the structure for pressing the fabric) adapted to different fabrics be formed more quickly and conveniently, so as to improve the overall embroidery production efficiency.

[0050] Of course, in addition to the above usage scenarios, the pressing height of the presser foot structure can also be adjusted by installing the presser foot buckle 4. Specifically, when it is found that the fabric is relatively thin and the presser foot 3 alone cannot well press and fix the fabric, the presser foot buckle 4 can also be connected to the presser foot 3; at this time, the presser foot buckle 4 can fill the gap between the presser foot 3 and the fabric, so that the presser foot 3 can stably press and fix the fabric through the presser foot buckle 4. However, when the presser foot 3 can directly contact and stably press and fix the fabric, there is no need to install the presser foot buckle 4.

[0051] Among them, the presser foot buckle 4 can be directly detachably fixed to the presser foot 3 through, for example, screws.

[0052] In this embodiment, in order to more conveniently install / dismantle the presser foot buckle 4, the presser foot buckle 4 is detachably buckled to the presser part 3.4 through a buckling structure.

[0053] Specifically, in this embodiment, the buckling structure includes a first buckling post 4.2 and a second buckling post 4.3.

[0054] The first buckling post 4.2 is a columnar body provided on the presser foot buckle body 4.1 and protruding toward the pressing part 3.4. On its side surface, a first buckling part 4.21 is formed protruding, which is placed on the side of the pressing part 3.4 facing away from the presser foot buckle body 4.1.

[0055] The second buckling post 4.3 is also a columnar body provided on the presser foot buckle body 4.1 and protruding toward the pressing part 3.4. On its side surface, a second buckling part 4.31 is formed protruding, which is placed on the side of the pressing part 3.4 facing away from the presser foot buckle body 4.1.

[0056] Moreover, the first buckling post 4.2 and the second buckling post 4.31 are respectively placed on both sides of the pressing part 3.4, and the first buckling post 4.2 and the second buckling post 4.3 are both elastically arranged (that is, the first buckling post 4.2 and the second buckling post 4.3 are preferably made of, for example, an elastic rubber part, or an elastic plastic, or an elastic metal part).

[0057] In this way, by pressing the pressing part 3.4, the first buckling post 4.2 and the second buckling post 4.31 are both driven to bend outward, and the pressing part 3.4 can be buckled into the cavity formed by surrounding the first buckling post 4.2, the second buckling post 4.31, the first buckling part 4.21, the second buckling part 4.31 and the presser foot buckle body 4.1. After being buckled, the first buckling post 4.2 and the second buckling post 4.31 return to the Figure 4 state shown in the figure, so that the presser foot buckle 4 is buckled to the pressing part 3.4.

[0058] In order to make the presser foot buckle 4 buckle to the pressing part 3.4 more stably. As shown in the attached Figure 4 to the attached Figure 5 figure, in this embodiment, the presser foot buckle body 4.1 can also be provided with: a positioning part 4.4 protruding toward the presser foot buckle body 4.1; a plurality of positioning parts 4.4 are all attached to the pressing part 3.4 and are spaced around the outer periphery of the pressing part 3.4, so as to avoid the deviation of the presser foot buckle 4 and improve the installation stability of the presser foot buckle 4, and further enable the presser foot buckle 4 to press and fix the fabric more stably.

[0059] Furthermore, the first buckling part 4.21 has an end close to the second buckling part 4.31. The upper part of this end is preferably processed by, for example, a chamfering process to form: a first guiding part 4.22 for guiding the pressing part 3.4 to be buckled between the first buckling post 4.2 and the second buckling post 4.3. So that the presser foot buckle 4 can be buckled on the presser foot 3 more smoothly.

[0060] Similarly, the second buckling part 4.31 has an end close to the first buckling part 4.21. The upper part of this end is also preferably processed by, for example, a chamfering process to form: a second guiding part 4.32 for guiding the pressing part 3.4 to be buckled between the first buckling post 4.2 and the second buckling post 4.3.

[0061] The material pressing part 3.4 is generally provided with a first needle hole 3.5 for the embroidery needle to move up and down, and the presser foot buckle body 4.1 is matched with the first needle hole 3.5 and provided with a second needle hole 4.11 for the embroidery needle to move up and down.

[0062] The presser foot buckle body 4.1 and the pressing part on the presser foot buckle body 4.1 are preferably made of elastic materials such as rubber, silicone, etc., so as to be elastically arranged. In this way, when the presser foot assembly presses and fixes the cloth, it can form an elastic protection for the cloth and is not easy to cause excessive pressing on the cloth, especially when the presser foot assembly moves downward excessively.

[0063] On the basis of the above, considering the needs of pattern embroidery, a needle moving component 5 for moving the embroidery thread is often provided in the embroidery machine head.

[0064] As attached Figure 1 and attached Figure 2 As shown in the figure, the needle shifting assembly 5 includes a needle shifting needle 5.1 for shifting the embroidery thread on the embroidery needle, and also includes a rotating motor 5.2 which is connected to the needle shifting needle 5.1 to drive the needle shifting needle 5.1 to swing left and right. When the machine starts working, the embroidery thread is inserted into the cloth surface with the embroidery needle, and after the embroidery thread is tied with the bottom line, the embroidery thread moves up with the embroidery needle, and the needle shifting needle 5.1 shifts the embroidery thread to perform pattern embroidery.

[0065] When the needle shifting assembly 5 is provided, it will occupy part of the space at the presser foot 3, making it impossible to smoothly install / remove the presser foot buckle 4. Therefore, in this embodiment, the needle shifting assembly 5 is preferably movably provided so that the needle shifting assembly 5 can be moved according to demand.

[0066] Specifically, in this embodiment, the embroidery machine head further includes a needle shifting assembly driving device 6, which is preferably a push rod motor, and a push rod motor has a retractable piston rod connected to the needle shifting assembly 5, so that the needle shifting assembly driving device 6 can drive the needle shifting assembly 5 to slide, thereby achieving:

[0067] When the presser foot buckle 4 needs to be installed / disassembled, the needle setting assembly driving device 6 can drive the needle setting assembly 5 away from the presser foot assembly, leaving a larger installation space for the installation / disassembly of the presser foot buckle 4.

[0068] After the presser foot buckle 4 is installed / disassembled, the needle setting assembly driving device 6 can drive the needle setting assembly 5 to be close to the presser foot assembly for resetting, so that the needle setting assembly 5 can work normally.

[0069] Furthermore, in order to enable the needle shifting assembly 5 to move more smoothly and stably, the embroidery machine head also includes a bracket member 7 fixed to the frame 1, and the bracket member 7 has a sliding portion that is extended obliquely, and the needle shifting assembly 5 is slidably connected to the sliding portion. At this time, driven by the needle shifting assembly driving device 6, the needle shifting assembly 5 can adaptively slide in the inclined direction.

[0070] In this embodiment, the sliding portion is preferably a slide groove arranged on the bracket 7, and the needle setting assembly 5 has a slide rail structure adapted to be slidably installed in the slide groove, so that the needle setting assembly 5 is slidably connected to the sliding portion and can slide in an inclined direction.

[0071] When a needle shifting assembly 5 is provided, and a presser foot buckle 4 is connected to the presser foot 3, it is considered that interference and collision problems may easily occur between the needle shifting 5.1 and the presser foot buckle 4. In this embodiment, the pressing portion at the bottom of the presser foot buckle body 4.1, which is used to press and fix the fabric, is preferably: a boss provided on the presser foot buckle body 4.1 and protruding downward; the number, position distribution, size and specific structure of the boss are set to match the moving path of the needle shifting 5.1. At this time, by providing the pressing portion of the boss structure, a space is formed between the presser foot buckle body 4.1 and the fabric for the needle shifting 5.1 to move the embroidery thread, thereby achieving: while being able to stably press and fix the fabric, the possibility of interference with the needle shifting 5.1 can be reduced or even avoided, so that the needle shifting 5.1 can smoothly move the embroidery thread.

[0072] As an extension, when the needle setting assembly 5 is provided, in addition to the arrangement as shown in the attached Figure 3 , Attachment Figure 4 The presser foot 3 with the presser foot buckle 4 shown in the figure can also be formed as shown in the attached figure. Figure 6 The presser foot structure shown in .

[0073] Specifically, it includes the presser foot 3 as described above, and the presser foot rod 3.3 of the presser foot 3 is provided with a ring sleeve 3.6 of an annular structure, and a hole for the embroidery needle to move up and down is formed inside the ring sleeve 3.6. At this time, a space for the needle 5.1 to move the embroidery thread is formed between the ring sleeve 3.6 and the cloth, so that the needle 5.1 can move the embroidery thread smoothly.

[0074] The above are only the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Additionally, in the embodiments of the present utility model, the terms "vertical", "horizontal", "front", "rear", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. It should be further noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. in the description should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0075] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. Presser foot assembly, characterized in that, Comprising: A presser foot (3), which includes a material pressing part (3.4) for pressing the fabric, and the material pressing part (3.4) has a material pressing surface for contacting the fabric; A presser foot buckle (4), which is detachably fixed to the presser foot (3), and the presser foot buckle (4) includes: a presser foot buckle body (4.1) covering the material pressing surface; The presser foot buckle body (4.1) has a side surface facing away from the material pressing part (3.4) and for contacting the fabric, and a pressing part is formed on this side surface.

2. The presser foot assembly according to claim 1, wherein: The presser foot buckle (4) is detachably buckled to the material pressing part (3.4) through a buckling structure.

3. The presser foot assembly according to claim 2, characterized in that: The buckling structure includes: A first buckling column (4.2) provided on the presser foot buckle body (4.1) and protruding towards the material pressing part (3.4), and a first buckling part (4.21) protruding from the side surface and placed on the side of the material pressing part (3.4) facing away from the presser foot buckle body (4.1); A second buckling column (4.3) provided on the presser foot buckle body (4.1) and protruding towards the material pressing part (3.4), and a second buckling part (4.31) protruding from the side surface and placed on the side of the material pressing part (3.4) facing away from the presser foot buckle body (4.1); The first buckling column (4.2) and the second buckling column (4.3) are respectively placed on both sides of the material pressing part (3.4), and both the first buckling column (4.2) and the second buckling column (4.3) are elastically arranged.

4. The presser foot assembly according to claim 3, wherein: The presser foot buckle body (4.1) is further provided with: a positioning part (4.4) protruding towards the presser foot buckle body (4.1); A plurality of the positioning parts (4.4) are all attached to the material pressing part (3.4) and are spaced apart around the outer periphery of the material pressing part (3.4).

5. The presser foot assembly according to claim 3, wherein: The first buckling part (4.21) is provided with a first guiding part (4.22) for guiding the material pressing part (3.4) to buckle between the first buckling column (4.2) and the second buckling column (4.3).

6. The presser foot assembly according to claim 3, wherein: The second buckling part (4.31) is provided with a second guiding part (4.32) for guiding the material pressing part (3.4) to buckle between the first buckling column (4.2) and the second buckling column (4.3).

7. Embroidery head, characterized in that: Including the presser foot assembly according to any one of claims 1 to 6.

8. The embroidery machine head according to claim 7, wherein: The embroidery machine head further includes a needle pushing assembly (5) and a needle pushing assembly driving device (6); The needle pushing assembly driving device (6) is connected to the needle pushing assembly (5) and can drive the needle pushing assembly (5) to slide, so that the needle pushing assembly (5) approaches or moves away from the presser foot assembly.

9. The embroidery head according to claim 8, wherein: The embroidery machine head further includes: A bracket part (7) fixed to the frame (1), which has a sliding part extending obliquely, and the needle pushing assembly (5) is slidably connected to the sliding part to be able to slide in the oblique direction.

10. Embroidery machine, characterized in that: Including the embroidery machine head according to any one of claims 7 to 9.

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