Bottom line detection device of sewing machine

Abstract

A bottom thread detection device of a sewing machine comprises a detection motor, a controller and a display screen, wherein the detection motor is used for winding a bottom thread; the controller is electrically connected with the detection motor; the controller can monitor the number of rotation turns of the detection motor in real time and display the monitored number of rotation turns on the display screen in real time. The bottom thread detection device of the sewing machine can detect the usage amount of bottom threads in real time, can visually display the usage amount of the bottom threads so that a user can observe the bottom threads conveniently, and has the advantages of being simple in structure and practical.

Description

Technical Field

[0001] The utility model relates to a sewing machine supporting equipment, in particular to a sewing machine bottom thread detection device. Background Art

[0002] During the use of a sewing machine, a bottom thread is essential to ensure proper sewing. The installation of the bottom thread involves three steps: placing the thread bar, securing the thread end, and adjusting the tension. The entire process is relatively cumbersome and time-consuming. However, in existing sewing machine structures, the bottom thread is completely covered by the sewing machine's operating platform after placement and is invisible. This makes it difficult for users to visually observe the remaining amount of bottom thread, and they often only discover it when the bottom thread is used up. This not only results in a period of idle sewing, affecting sewing quality, but also requires the bottom thread to be reinstalled, affecting work efficiency. Utility Model Content

[0003] In view of the above problems, the utility model designs a sewing machine bobbin thread detection device, which can detect the amount of bobbin thread used in real time and can display it intuitively for users to observe, and has the characteristics of simple structure and practicality.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A sewing machine bobbin thread detection device is characterized by comprising a detection motor for bobbin thread winding, a controller electrically connected to the detection motor, and a display screen; the controller can monitor the number of rotations of the detection motor in real time and display the monitored number of rotations on the display screen in real time.

[0006] More specifically, the above-mentioned controller also includes a setting module, which is used to preset the number of detection motor turns required for work. The preset remaining number of detection motor turns is displayed as a countdown on the display screen, and a signal is sent to make the buzzer and / or warning light work when the countdown returns to zero.

[0007] More specifically, the detection motor and controller are arranged together in a control box. The back of the control box is provided with a bottom thread inlet and a bottom thread outlet. The bottom thread enters from the inlet, surrounds the detection motor, and then comes out from the outlet, and is then led to the sewing machine for use.

[0008] More specifically, the controller is arranged in a control box, the detection motor is arranged outside the control box, and the bottom thread directly surrounds the detection motor and is then led to the sewing machine for use.

[0009] More specifically, a connecting portion is provided at the bottom of the control box, and the connecting portion can fix the control box above the sewing machine head through screws.

[0010] More specifically, a control switch for turning the detection device on and off is provided on the side wall of the control box.

[0011] More specifically, the control box is composed of a rear plate and a front cover.

[0012] The utility model is provided with a sewing machine bobbin thread detection device, which monitors the usage of the bobbin thread in real time by collecting the number of revolutions of the detection motor and intuitively displays it on a display screen, so as to facilitate direct observation by the operator and enable the bobbin thread to be replaced in time, thereby avoiding the problem of idle sewing caused by the bobbin thread running out.

[0013] At the same time, the controller is also equipped with a preset module, which can set the number of rotations of the detection motor according to actual sewing needs, and display the countdown on the display screen. When the countdown returns to zero, a signal is immediately sent to inform the user to stop the operation, realizing the controllable operation of the number of bottom thread coils to facilitate the user's operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 , a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 , a schematic diagram of the three-dimensional structure of the utility model from another perspective;

[0016] Figure 3 , a schematic diagram of the three-dimensional structure of the utility model after removing the front cover;

[0017] Figure 4 , a schematic diagram of the three-dimensional structure of the utility model in which the detection motor is arranged outside the control box;

[0018] Among them, 1 is a detection motor, 2 is a controller, 21 is a setting module, 3 is a display screen, 4 is a control box, 41 is a back panel, 411 is a wire inlet, 412 is a wire outlet, 413 is an installation part, 42 is a front cover, 43 is a connection part, 44 is a control switch, and 5 is a warning light. DETAILED DESCRIPTION

[0019] like Figure 1-3 As shown, a sewing machine bobbin thread detection device includes a detection motor 1 for bobbin thread winding, a controller 2 electrically connected to the detection motor, and a display screen 3.

[0020] The controller 2 can monitor the number of rotations of the detection motor 1 in real time, and display the monitored number of rotations on the display screen 3 in real time. The operator knows the usage of the bobbin according to the number of rotations displayed on the display screen 3, and uses this as a basis for whether to replace the bobbin, so as to avoid the problem of idle sewing due to exhaustion of the bobbin, which can improve the sewing quality and sewing efficiency to a certain extent.

[0021] The detection motor 1 and controller 2 are housed together in a control box 4, which is composed of a rear panel 41 and a front cover 42. The rear panel 41 is provided with a bobbin thread inlet 411 and a bobbin thread outlet 412. The bobbin thread enters the inlet 411, flows around the detection motor 1, and then exits the outlet 412 for use in the sewing machine. The display screen 3 is provided on the front panel of the front cover 42.

[0022] And as Figure 4 As shown, this is the second embodiment of the present invention, the controller 2 is arranged in a control box 4, the control box 4 is composed of a back plate 41 and a front cover 42, the detection motor 1 is arranged outside the control box, and the bottom line directly surrounds the detection motor 1 and is then led to the sewing machine for use.

[0023] To further facilitate operation, the controller 2 also includes a setting module 21. Setting module 21 is used to preset the number of detection motor turns required for operation. The preset number of remaining detection motor turns is displayed as a countdown on the display screen 3, and when the countdown reaches zero, a signal is issued to activate the buzzer and / or warning light 5. This illustrated structure only illustrates the structure using the warning light 5, which is mounted on the mounting portion 413 at the top of the back plate 41. In practice, a buzzer or both a warning light 5 and a buzzer can be used as needed. The functions of the setting module 21 above enable controllable operation of the number of bobbin thread windings, greatly facilitating the user's operation.

[0024] The bottom of the control box 4 is provided with a connecting portion 43 , and during assembly, the connecting portion 43 fixes the control box 4 above the sewing machine head through screws.

[0025] A control switch 44 is provided on the side wall of the control box 4 for controlling the on and off operation of the detection device.

[0026] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modification, equivalent change or modification made to the above embodiment based on the technical principle of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A sewing machine bottom thread detection device, characterized in that: The invention comprises a detection motor (1) for winding a bottom thread, a controller (2) electrically connected to the detection motor, and a display screen (3); the controller (2) can monitor the number of rotations of the detection motor (1) in real time, and display the monitored number of rotations on the display screen (3) in real time.

2. A sewing machine bobbin thread detection device according to claim 1, characterized in that: The controller (2) further comprises a setting module (21), the setting module (21) being used to preset the number of detection motor revolutions required for operation, the preset remaining number of detection motor revolutions being displayed as a countdown on the display screen (3), and a signal being sent to activate the buzzer and / or the warning light (5) when the countdown returns to zero.

3. A sewing machine bobbin thread detection device according to claim 2, characterized in that: The detection motor (1) and the controller (2) are arranged together in a control box (4). The back of the control box (4) is provided with a bottom thread inlet (411) and a bottom thread outlet (412). The bottom thread enters from the bottom thread inlet (411), surrounds the detection motor (1), and then exits from the bottom thread outlet (412) to be led to the sewing machine for use.

4. A sewing machine bobbin thread detection device according to claim 2, characterized in that: The controller (2) is arranged in a control box (4), the detection motor (1) is arranged outside the control box (4), and the bottom thread directly surrounds the detection motor (1) and is then led to the sewing machine for use.

5. A sewing machine bobbin thread detection device according to claim 3 or 4, characterized in that: A connecting portion (43) is provided at the bottom of the control box (4), and the connecting portion (43) can fix the control box (4) above the sewing machine head via screws.

6. A sewing machine bobbin thread detection device according to claim 3 or 4, characterized in that: A control switch (44) for opening and closing the detection device is provided on the side wall of the control box (4).

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