Presser foot device for embroidery machine

Abstract

The utility model relates to the technical field of embroidery machines, and discloses a presser foot device for an embroidery machine, which comprises a presser foot plate body and a threading hole arranged on the surface of the presser foot plate body, and further comprises a fixing shell arranged at the bottom of the presser foot plate body, a fixing rod is movably connected with an inner cavity of the fixing shell, the top of the fixing rod is fixedly connected with a clamping block, and the clamping block is fixedly connected with the presser foot plate body. An inner cavity of the fixed shell is fixedly connected with a compression spring; according to the presser foot device, the needle head can be blocked when the presser foot device is installed through the cooperation of the protective pipe, the safety of workers during installation is improved, the needle head is not prone to being bent, meanwhile, the workers can conveniently compare and adjust the height of the presser foot plate body under the cooperation of the connecting base and the movable plate, and the working efficiency is improved. And under the cooperation of a clamping block and a clamping groove, the protective pipe and the movable plate can be disassembled, and the problems that when an existing presser foot device is installed, safety is poor, and the position is not accurate enough are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of embroidery machines, in particular to a presser foot device for embroidery machines. Background Art

[0002] With advances in science and technology, computerized embroidery machines have become a staple in the embroidery industry. During operation, a power unit drives the needle bars up and down through a transmission mechanism to create embroidery. To hold the fabric down, a presser foot, paired with each needle bar, is mounted on the needle bar frame. These presser feet follow the needle bars' movement.

[0003] However, most existing presser feet do not have a structure to protect the needle during installation. The needle is inside the presser foot during installation, which not only makes it easy for workers to come into contact with the needle and cause accidental injury, reducing the safety of the device during installation, but also makes it easy for tools to come into contact with the needle during installation, causing the needle to bend, reducing the applicability of the device during installation.

[0004] At the same time, during the installation of the existing presser foot device, the height of all presser feet needs to be unified to avoid the situation where the presser foot cannot contact the cloth after installation. However, when installing the existing presser foot, most workers rely on the naked eye to observe the height, which not only makes it easy for the presser foot position to be inaccurate, but also affects the cloth pressing effect of the presser foot and affects the normal use of the device. Utility Model Content

[0005] The purpose of the present utility model is to provide a presser foot device for an embroidery machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a presser foot device for an embroidery machine, comprising a presser foot body and threading holes formed on the surface thereof, and further comprising:

[0007] A fixed shell is provided at the bottom of the presser foot body, the inner cavity of the fixed shell is movably connected to a fixed rod, the top of the fixed rod is fixedly connected to a positioning block, the inner cavity of the fixed shell is fixedly connected to a compression spring, and a connecting groove is opened inside the presser foot body;

[0008] A positioning groove is opened in the inner cavity of the communicating groove, an auxiliary mechanism is installed on the surface of the fixing rod, a protective tube is fixedly connected to one side of the surface of the fixing shell, a connecting seat is fixedly connected to one side of the top of the fixing shell, and a movable plate is rotatably connected to one side of the connecting seat.

[0009] Preferably, the auxiliary mechanism includes a rotating plate fixed to the surface of the fixed rod and a guide block fixed to the top thereof, and a guide groove is provided at the bottom of the fixed shell.

[0010] Preferably, the inner wall of the guide groove is movably connected to the surface of the guide block, and the guide groove and the guide block are used in conjunction with each other.

[0011] Preferably, the inner wall of the communicating groove is slidably connected to the surfaces of the fixing rod and the positioning block, and the inner wall of the positioning groove is slidably connected to the surface of the positioning block.

[0012] Preferably, the surface of the protective tube is slidably connected to the inner wall of the threading hole, and the protective tube is used in conjunction with the presser foot body.

[0013] Preferably, the bottom of the movable plate is movably connected to the top of the fixed shell, and the surface of the movable plate is used in conjunction with the surface of the fixed shell.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The utility model can block the needle when installing the presser foot device through the cooperation of the protective tube, which not only improves the safety of the workers during installation, but also makes the needle less likely to be bent, effectively improving the applicability of the device. At the same time, the cooperation of the connecting seat and the movable plate can facilitate the workers to compare and adjust the height of the presser foot body, so that the position of the device is more accurate during installation. In addition, with the cooperation of the positioning block and the positioning groove, the protective tube and the movable plate can be disassembled to make them reusable, thereby solving the problems of poor safety and inaccurate positioning of the existing presser foot device during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present utility model;

[0017] Figure 2 It is a schematic diagram of a partial three-dimensional cross-sectional structure of the present utility model;

[0018] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the present utility model;

[0019] Figure 4 It is a schematic diagram of a partial three-dimensional cross-sectional structure in the utility model.

[0020] In the figure: 1. Presser foot body; 2. Threading hole; 3. Fixed shell; 4. Fixed rod; 5. Stop block; 6. Compression spring; 7. Connecting groove; 8. Stop groove; 9. Auxiliary mechanism; 91. Rotating plate; 92. Guide block; 93. Guide groove; 10. Protective tube; 11. Connecting seat; 12. Movable plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4As shown, a presser foot device for an embroidery machine includes a presser foot body 1. The presser foot body 1 can guide the needle and press the fabric so that the embroidery machine can be used normally. A threading hole 2 is opened on the surface of the presser foot body 1. The threading hole 2 is used to guide the needle. A fixed shell 3 is provided at the bottom of the presser foot body 1. The inner cavity of the fixed shell 3 is movably connected with a fixed rod 4. The top of the fixed rod 4 is fixedly connected with a positioning block 5. The inner cavity of the fixed shell 3 is fixedly connected with a compression spring 6. The other end of the compression spring 6 is fixedly connected to the surface of the fixed rod 4. Under the action of the compression spring 6, the fixed rod 4 can always apply force to the positioning block 5 through the cooperation of the fixed shell 3 and the fixed rod 4, so that the positioning block 5 will not move easily. A connecting groove 7 is provided inside, and the inner wall of the connecting groove 7 is slidably connected to the surface of the fixing rod 4 and the blocking block 5. Under this action, the blocking block 5 can be moved to the inside of the presser foot body 1 by the fixing rod 4 driving the blocking block 5 to cooperate with the connecting groove 7. The inner cavity of the connecting groove 7 is provided with a blocking groove 8, and the inner wall of the blocking groove 8 is slidably connected to the surface of the blocking block 5. Under this action, the blocking block 5 can be stuck in the inside of the blocking groove 8 by the rotation of the fixing rod 4, and under the action of the compression spring 6, a pulling force can be applied to the blocking block 5 all the time, so that the fixed shell 3 will not move easily, so that the device can install the fixed shell 3 when it needs to be used, and when it does not need to be used, the blocking block 5 and the blocking groove 8 can be used to fix the fixed shell 3. The fixed shell 3 can be removed by cooperation, and the surface of the fixing rod 4 is installed with an auxiliary mechanism 9, which can make it more convenient and easy for the staff to rotate the blocking block 5. A protective tube 10 is fixedly connected to one side of the surface of the fixed shell 3, and the surface of the protective tube 10 is slidably connected to the inner wall of the threading hole 2. The protective tube 10 is used in conjunction with the presser foot body 1. Under this function, when installing the presser foot device, the needle can be inserted into the inside of the protective tube 10 to block the needle, thereby avoiding the situation where the staff easily contacts the needle when installing the presser foot device and causes injury, effectively improving the safety of the device during installation, and the protective tube 10 can be easily disassembled with the cooperation of the blocking block 5 and the blocking groove 8, so that the protective tube 10 can be reused, one side of the top of the fixed shell 3 is fixedly connected to the connecting seat 11, one side of the connecting seat 11 is rotatably connected to a movable plate 12, the surface of the movable plate 12 is slidably connected to the surface of the presser foot body 1, when installing the device, the movable plate 12 can be rotated to connect it with the presser foot device on the other side, with the cooperation of the movable plate 12, the staff can adjust the height of all devices to the same horizontal line when installing the device, so that the device can be more convenient to install and the position is more accurate, the bottom of the movable plate 12 is movably connected to the top of the fixed shell 3, the surface of the movable plate 12 is used in conjunction with the surface of the fixed shell 3, under this action, when the movable plate 12 is rotated, the rotation angle is only one hundred and eighty degrees,With the cooperation of the fixed shell 3, when the movable plate 12 is in contact with the fixed shell 3, the angle between the presser foot body 1 and the movable plate 12 is 90 degrees, so that the height adjustment of the device is more accurate during installation, and the movable plate 12 is prevented from tilting during rotation, which may affect the height adjustment of the device.

[0023] The auxiliary mechanism 9 includes two rotating plates 91, one side of which is fixedly connected to the surface of the fixing rod 4, under this action, the cooperation of the rotating plate 91 can provide an effective force application point when the staff rotates the fixing rod 4, thereby making it easier for the staff to rotate the fixing rod 4, and effectively improving the convenience of the staff when rotating the fixing rod 4. The top of the rotating plate 91 is fixedly connected to a guide block 92, and the bottom of the fixed shell 3 is provided with a guide groove 93. The cooperation of the guide block 92 and the guide groove 93 can limit the fixing rod 4 when it rotates, so as to avoid a large position deviation and insufficient stability when the fixing rod 4 rotates. The inner wall of the guide groove 93 is movably connected to the surface of the guide block 92, and the guide groove 93 cooperates with the guide block 92. Under this action, when the fixing rod 4 is not in use, the guide block 92 can be detached from the inside of the guide groove 93, so as to avoid the guide block 92 being stuck in the inside of the guide groove 93 and affecting the normal movement of the fixing rod 4.

[0024] It is worth noting that the technical features such as the presser foot body 1 and the threading hole 2 proposed in this technical solution should be regarded as prior art. The specific structure, working principle, and possible control method and spatial layout method of these technical features can be selected according to conventional methods in the field, and this technical solution will not be further elaborated.

[0025] Working principle: First, when installing the device, the needle is stuck in the inside of the protective tube 10, and then the device is connected to the needle rod frame. Under the action of the protective tube 10, the needle can be blocked, thereby preventing the staff from easily contacting the needle when installing the device and reducing safety. When the position of the device needs to be precisely adjusted, the staff rotates the movable plate 12 to make it fit with the surface of the fixed shell 3, and then compares the height of the movable plate 12 with the presser foot installed on the other side, so that the installed presser foot body 1 can be the same height as the presser foot on the other side, which facilitates the installation of the device. After the installation is completed, the staff pushes the fixed rod 4 upward by rotating the plate 91 to drive the locking block 5 to disengage from the inside of the locking groove 8, and then rotates the fixed rod 4 to make the locking block 5 disengage from the inside of the presser foot body 1 through the cooperation of the connecting groove 7, and then the locking block 5 no longer limits the fixed shell 3, and then the fixed shell 3 and the protective tube 10 and the movable plate 12 on its surface can be removed.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A presser foot device for an embroidery machine, comprising a presser foot body (1) and threading holes (2) formed on the surface thereof, characterized in that: Also includes: A fixed shell (3) is arranged at the bottom of the presser foot body (1), the inner cavity of the fixed shell (3) is movably connected to a fixed rod (4), the top of the fixed rod (4) is fixedly connected to a positioning block (5), the inner cavity of the fixed shell (3) is fixedly connected to a compression spring (6), and a connecting groove (7) is provided inside the presser foot body (1); A latching groove (8) is provided in the inner cavity of the communicating groove (7); an auxiliary mechanism (9) is installed on the surface of the fixing rod (4); a protective tube (10) is fixedly connected to one side of the surface of the fixing shell (3); a connecting seat (11) is fixedly connected to one side of the top of the fixing shell (3); and a movable plate (12) is rotatably connected to one side of the connecting seat (11).

2. The presser foot device for an embroidery machine according to claim 1, characterized in that: The auxiliary mechanism (9) comprises a rotating plate (91) fixed to the surface of the fixed rod (4) and a guide block (92) fixed to the top thereof, and a guide groove (93) is provided at the bottom of the fixed shell (3).

3. The presser foot device for an embroidery machine according to claim 2, characterized in that: The inner wall of the guide groove (93) is movably connected to the surface of the guide block (92), and the guide groove (93) and the guide block (92) are used in conjunction with each other.

4. The presser foot device for an embroidery machine according to claim 1, characterized in that: The inner wall of the communication groove (7) is slidably connected to the surfaces of the fixing rod (4) and the positioning block (5), and the inner wall of the positioning groove (8) is slidably connected to the surface of the positioning block (5).

5. The presser foot device for an embroidery machine according to claim 1, characterized in that: The surface of the protective tube (10) is slidably connected to the inner wall of the threading hole (2), and the protective tube (10) is used in conjunction with the presser foot body (1).

6. The presser foot device for an embroidery machine according to claim 1, characterized in that: The bottom of the movable plate (12) is movably connected to the top of the fixed shell (3), and the surface of the movable plate (12) is used in conjunction with the surface of the fixed shell (3).

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