Electronic wrench and sewing machine

Abstract

The utility model discloses an electronic wrench which comprises a shell, the shell comprises a base and a cover body, the base is provided with a mounting hole, the cover body is arranged at the joint of the cover body and the mounting hole and is provided with a through groove, the base is provided with a PCB, the PCB is provided with a Hall sensor, the side, arranged on the PCB, of the base is provided with a bearing, and the bearing is sleeved with a pressing wrench. According to the structure, the electronic wrench assembly and the machine head of the sewing machine are installed, the structure is simple, operation is convenient, installation personnel can conveniently conduct installation and disassembly, meanwhile, parts are arranged in the shell through the structure, and therefore the parts are protected, and the overall service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine technology, specifically to an electronic wrench. Background Technology

[0002] A sewing machine is a machine that uses sewing thread to create one or more stitches on a workpiece, allowing one or more layers of workpiece to be interwoven or sewn together.

[0003] For example, Chinese patent publication number CN221398308U discloses an electronic wrench, including a mounting base and a wrench body disposed on the mounting base. The mounting base is provided with a sensing panel, the sensing panel is provided with a sensing block, and the wrench body is provided with a detection component. The detection component is located on the side of the wrench body closer to the mounting base. An elastic element is provided between the mounting base and the wrench body, and the elastic force of the elastic element is used to support the wrench body. The mounting base is provided with a first abutment part, which is used for the wrench body to abut against after rotation. When the wrench body is moved to overcome the elastic force of the elastic element and move towards the first abutment part, the detection component moves closer to the sensing panel to be detected.

[0004] The aforementioned electronic wrench mechanism typically involves installing the electronic wrench inside the machine head, which is cumbersome to install and use. Furthermore, the detection components of this structure are exposed inside the machine head, making them susceptible to damage from other parts, resulting in a relatively short overall service life. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an electronic wrench to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an electronic wrench, comprising a housing, the housing comprising a base and a cover, the base being provided with a mounting hole, the cover being provided with a through groove at the connection between itself and the mounting hole, a PCB board being provided on the base, a Hall sensor being provided on the PCB, a bearing being provided on one side of the base and the bearing being fitted with a pressing wrench.

[0007] Furthermore, a magnet is provided on the side of the press wrench facing the PCB board.

[0008] Furthermore, a return spring is provided between the press wrench and the bearing.

[0009] This application also provides a sewing machine including any of the above-described electronic wrenches, and further including a sewing head, wherein the electronic wrench is disposed on the outside of the sewing head.

[0010] The beneficial technical effects of this utility model are as follows: the electronic wrench assembly is installed with the sewing machine head through the above structure, which is simple in structure, easy to operate, and convenient for installers to install and disassemble. At the same time, the above structure sets the components inside the housing, thereby protecting the components and improving the overall service life. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of the shell of this utility model;

[0013] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0014] Reference numerals: 1. Housing; 11. Base; 12. Cover; 13. Mounting hole; 14. Through slot; 2. PCB board; 3. Hall sensor; 4. Bearing; 5. Pressing wrench; 51. Magnet; 52. Return spring; 6. Machine head. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0016] Example 1, referring to Figure 1-2 As shown, an electronic wrench is provided, including a housing 1. The housing 1 includes a base 11 and a cover 12. The base 11 is provided with a mounting hole 13. The cover 12 is located at the connection between itself and the mounting hole 13 and is provided with a through groove 14. A PCB board 2 is provided on the base 11. A Hall sensor 3 is provided on the PCB. A bearing 4 is provided on one side of the base 11 and located on the PCB. A pressing wrench 5 is sleeved on the bearing 4. A magnet 51 is provided on the side of the pressing wrench 5 facing the PCB board 2. A return spring 52 is provided between the pressing wrench 5 and the bearing 4.

[0017] The PCB board is also equipped with an optical encoder. When the PCB board is equipped with an optical encoder, a grating sheet is set on the side of the PCB board facing the wrench; or the PCB board is also equipped with an inductive sensor, in which case an inductor is generated on the side of the PCB board facing the wrench.

[0018] Reference Figure 3 As shown, this embodiment also provides a sewing machine, including any of the above-described electronic wrenches, and also includes a sewing head 6, with the electronic wrench disposed on the outside of the sewing head 6.

[0019] In this embodiment, the housing 1 is assembled first. During installation, the PCB is first installed on one side of the base 11, and then the pressing wrench 5 is installed on the bearing 4, allowing the pressing wrench 5 to rotate on the bearing 4. The side of the pressing wrench 5 equipped with the magnet 51 is positioned facing the PCB board 2, so that when the pressing wrench 5 is pressed and rotates downward, it transmits a magnetic field signal to the Hall sensor 3. The Hall sensor 3 then converts this signal into an electrical signal, which is transmitted to the external electronic control system, thereby causing the sewing machine to perform reverse sewing. At the same time, by adjusting the rotation angle of the pressing wrench 5, the overall reverse sewing speed of the sewing machine is adjusted, and the return spring 52 ensures that the pressing wrench 5 rotates downward. After the wrench 5 is rotated, it returns to its initial position. Then, the cover 12 and the base 11 are installed. At this time, both the cover 12 and the base 11 have through grooves 14. The two through grooves 14 are aligned with the corresponding mounting holes 13 on the outside of the sewing machine head 6, and bolts are screwed in to install the electronic wrench assembly on the outside of the sewing machine head 6. The above structure allows for the installation of the electronic wrench assembly on the sewing machine head 6. The structure is simple and easy to operate, making it convenient for installers to install and disassemble. At the same time, the above structure houses the components inside the housing 1, thereby protecting the components and improving the overall service life.

[0020] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An electronic wrench, characterized in that: The device includes a housing (1), which includes a base (11) and a cover (12). The base (11) is provided with a mounting hole (13). The cover (12) is provided with a through groove (14) at the connection between itself and the mounting hole (13). A PCB board (2) is provided on the base (11). A Hall sensor (3) is provided on the PCB. A bearing (4) is provided on one side of the base (11) and a pressing wrench (5) is provided on the bearing (4) or sleeve.

2. The electronic wrench according to claim 1, characterized in that: The pressing wrench (5) is provided with a magnet (51) on the side facing the PCB board (2).

3. An electronic wrench according to claim 1, characterized in that: A return spring (52) is provided between the pressing wrench (5) and the bearing (4).

4. A sewing machine, characterized in that: The electronic wrench according to any one of claims 1-3 further includes a head (6), the electronic wrench being disposed on the outside of the head (6).

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