Winder and sewing machine

Abstract

The winder comprises a driving motor, a winding shaft, a winding supporting disc, a spring piece, a controller and a timer, the bottom end of the winding shaft is connected with a power output shaft of the driving motor, the winding supporting disc is fixedly arranged on the peripheral side of the winding shaft in a sleeved mode, the spring piece is installed on the winding shaft, and the controller is connected with the controller. The controller is electrically connected with the driving motor and the timer, and the controller can control the driving motor to be powered off according to timing information of the timer. According to the utility model, the winding shaft is independently driven to rotate by the driving motor, and the starting and stopping of the driving motor are controlled by controlling the time length of the timer, so that the accurate control of the winding quantity is realized, and the winding can be automatically stopped when the required winding quantity is reached.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine technology, specifically to a thread winder and a sewing machine. Background Technology

[0002] like Figure 7 As shown, most commercially available sewing machines are equipped with a winding device. This winding device 100 is mounted on the machine housing 200, and an upper shaft 300 is installed inside the housing 200. The rubber ring 150 at the bottom of the winding device 100 is connected to the drive wheel 400 mounted on the upper shaft 300 via friction transmission. The rotation of the upper shaft 300 drives the winding shaft of the winding device 100 to rotate, thereby realizing the winding action. A limit device is provided on the winding device. After a certain amount of winding is reached, it will automatically separate from the drive wheel, thereby stopping the winding. At the same time, a limit rod for adjusting the amount of winding is also provided on the winding device. The amount of winding can be controlled by changing the fixed position of the limit rod.

[0003] Patent document CN209619630U discloses a thread winding device for a sewing machine. This device detects the amount of thread wound using a sensor. However, in actual production, this thread winding device has the following technical problems:

[0004] 1. The installation of sensors will make the overall size of the winding device larger, occupying more space and making it difficult to integrate into the sewing machine body.

[0005] 2. Problems with poor contact and unresponsiveness exist, affecting the normal progress of winding operations.

[0006] Therefore, how to reduce the size of the winding device while ensuring the normal operation of the winding process has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] In view of this, the purpose of this utility model is to provide a winding device to address the above-mentioned technical problems.

[0008] The technical solution adopted by this utility model is as follows: a winding device, the winding device includes: a drive motor, a winding shaft, a winding support plate, a spring plate, a controller and a timer, the bottom end of the winding shaft is connected to the power output shaft of the drive motor, the winding support plate is fixedly sleeved on the circumference of the winding shaft, the spring plate is installed on the winding shaft, the controller is electrically connected to the drive motor and the timer respectively, and the controller can control the drive motor to cut off the power according to the timing information of the timer.

[0009] Preferably, the bottom end of the winding shaft is formed with a connecting hole and a mounting hole that intersect and communicate with each other, the power output shaft of the drive motor is coaxially inserted in the connecting hole, and a fastening screw is installed in the mounting hole.

[0010] Preferably, an axial groove is formed on one side of the winding shaft, and a radial hole communicating with the axial groove is formed at the top of the winding shaft. The top of the spring sheet is inserted into the radial hole, and the bottom of the spring sheet abuts against the axial groove.

[0011] Preferably, a limiting ring is formed on the upper surface of the winding support disk.

[0012] Preferably, the drive motor, controller, and timer are electrically connected to the battery.

[0013] The second objective of this utility model is to provide a sewing machine, including the aforementioned winding device and machine housing, wherein a stepped hole is provided on the top of the machine housing, the winding device is disposed in the stepped hole, the drive motor is located in the inner cavity of the machine housing, and the drive motor is fixedly connected to the machine housing.

[0014] The beneficial effects of this utility model are:

[0015] This invention employs an independent drive and time-controlled method, connecting the drive motor to the bottom of the winding shaft via a transmission connection. The drive motor independently drives the winding shaft to rotate and perform the winding operation. The drive motor and timer are connected to the controller via electrical signals. The timer tracks the rotation time of the winding shaft, and the controller can cut off the power to the drive motor when the required amount of yarn is reached. This not only ensures the accuracy of the winding amount and the normal operation of the winding operation, but also has the advantages of simple structure and small size. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the winder of this utility model;

[0017] Figure 2 This is an exploded view of the winding device of this utility model;

[0018] Figure 3 This is a schematic diagram of the winding shaft;

[0019] Figure 4 This is a schematic diagram of the control principle of the winder of this utility model;

[0020] Figure 5 This is a three-dimensional schematic diagram of the casing;

[0021] Figure 6 This is a schematic diagram of the structure of the sewing machine of this utility model;

[0022] Figure 7 This is a schematic diagram of an existing winding device.

[0023] Explanation of the reference numerals in the figure:

[0024] 100. Winder;

[0025] 110. Drive motor; 111. Power take-off shaft; 112. Threaded hole;

[0026] 120. Winding shaft; 121. Connecting hole; 122. Mounting hole; 123. Axial groove; 124. Radial hole;

[0027] 130. Winding support disc; 131. Limiting ring;

[0028] 140. Spring sheet;

[0029] 150. Rubber ring;

[0030] 200. Housing;

[0031] 210. Stepped hole; 220. Through hole;

[0032] 300, upper shaft;

[0033] 400. Drive wheel. Detailed Implementation

[0034] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.

[0035] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0038] Examples, such as Figures 1-6 As shown, a winding device 100 includes: a drive motor 110, a winding shaft 120, a winding support plate 130, a spring plate 140, a controller, and a timer. The bottom end of the winding shaft 120 is connected to the power output shaft 111 of the drive motor 110. The winding support plate 130 is fixedly sleeved on the periphery of the winding shaft 120. The spring plate 140 is mounted on the winding shaft 120. The controller is electrically connected to the drive motor 110 and the timer, respectively. The controller can control the drive motor 110 to de-energize according to the timing information of the timer, so that the winding shaft 120 can be driven to rotate through the power output shaft 111 of the drive motor 110. The controller and the timer control the rotation duration of the winding shaft 120, thereby achieving precise control of the bobbin winding amount.

[0039] This invention employs an independent drive and time-controlled method, connecting the drive motor 110 to the bottom end of the winding shaft 120. The drive motor 110 independently drives the winding shaft 120 to rotate and perform winding operations. The drive motor 110, timer, and controller are connected by electrical signals. The timer tracks the rotation time of the winding shaft 120, and the controller can cut off the power to the drive motor 110 when the required amount of bobbin winding is reached. This not only ensures the accuracy of bobbin winding and the normal operation of winding operations, but also has the advantages of simple structure and small size.

[0040] Specific embodiments, such as Figures 1-6 As shown, a winding device 100 includes: a drive motor 110, a winding shaft 120, a winding support plate 130, a spring sheet 140, a controller, and a timer.

[0041] The drive motor 110 is located directly below the winding shaft 120, and the power output shaft 111 of the drive motor 110 is connected to the bottom end of the winding shaft 120 for transmission, so as to drive the winding shaft 120 to rotate through the drive motor 110.

[0042] Specifically, the transmission connection between the power output shaft 111 and the winding shaft 120 is achieved as follows: a connecting hole 121 is formed at the bottom end of the winding shaft 120, and the connecting hole 121 is coaxially arranged with the winding shaft 120. A mounting hole 122 is also formed at the bottom end of the winding shaft 120, and the mounting hole 122 is arranged along the radial direction of the winding shaft 120, and the mounting hole 122 communicates with the connecting hole 121. The top end of the power output shaft 111 is coaxially inserted into the connecting hole 121, and a fastening screw (not shown in the figure) is installed in the mounting hole 122, which securely connects the power output shaft 111 and the winding shaft 120.

[0043] The winding support plate 130 is fixedly sleeved on the periphery of the winding shaft 120, that is, the winding support plate 130 and the winding shaft 120 are interference-fitted, and are used to provide vertical support for the bobbin.

[0044] Preferably, a limiting ring 131 is formed on the upper surface of the winding support disc 130 for horizontally limiting the bobbin.

[0045] The spring sheet 140 is mounted on the winding shaft 120 and located above the winding support plate 130, so that the bobbin is fixed around the winding shaft 120 by the elastic deformation of the spring sheet 140.

[0046] Specifically, an axial groove 123 is formed on one side of the winding shaft 120, with the length of the groove 123 aligned with the axis of the winding shaft 120. A radial hole 124 is formed at the top of the winding shaft 120, with the radial hole 124 positioned along the radial direction of the winding shaft 120 and one end of the radial hole 124 communicating with the bottom of the axial groove 123. The two ends of the spring sheet 140 are located within the axial groove 123, while the middle portion of the spring sheet 140 is located outside the axial groove 123. The top end of the spring sheet 140 is inserted into the radial hole 124, and the bottom end of the spring sheet 140 abuts against the axial groove 123. When the bobbin is fitted from top to bottom onto the outside of the axial groove 123, the spring sheet 140 undergoes elastic deformation, thus fixing the bobbin to the winding shaft 120.

[0047] The controller (preferably a PLC controller) is electrically connected to the drive motor 110 and to the timer. The timer can time the energization time of the drive motor 110, and the controller can control the drive motor 110 to be de-energized according to the timing information of the timer, so as to drive the winding shaft 120 to rotate through the power output shaft 111 of the drive motor 110. The controller can control the rotation duration of the winding shaft 120 through the timer and the controller, thereby achieving precise control of the bobbin winding amount.

[0048] Preferably, the winder 100 also includes a battery (not shown in the figure), which is integrated into the control panel, and the drive motor 110, the controller and the timer are all electrically connected to the battery so that the winder 100 can be driven independently to perform winding operations by the battery as an independent power source.

[0049] Examples, such as Figure 5 and Figure 6 As shown, a sewing machine includes the aforementioned winder 100 and a housing 200. A stepped hole 210 is provided on the top of the housing 200. The winding support plate 130 and the winding shaft 120 of the winder 100 are installed in the stepped hole 210. The drive motor 110 is located in the inner cavity of the housing 200 and is fixedly connected to the housing 200. The power output shaft 111 of the drive motor 110 axially penetrates the housing 200 and is fixedly connected to the winding shaft 120.

[0050] Specifically, the fixed connection between the drive motor 110 and the housing 200 is achieved as follows: at least two through holes 220 are formed at the bottom of the stepped hole 210, and a threaded hole 112 is provided at the top of the housing of the drive motor 110. A connecting screw is installed in the through hole 220, and the bottom end of the connecting screw is threaded into the threaded hole 112.

[0051] The working principle of the winding device of this utility model is as follows:

[0052] When performing the winding operation, first put the bobbin into the winding shaft 120 and make the bottom end of the bobbin close to the winding support plate 130. Under the action of the spring plate 140, the bobbin can be fixedly connected to the winding shaft 120.

[0053] After pressing the start button on the control panel, the controller simultaneously sends electrical signals to the drive motor 110 and the timer. Upon receiving the electrical signal, the drive motor is energized and drives the winding shaft 120 to rotate. Upon receiving the electrical signal, the timer begins to time the energization time of the drive motor 110, which is to say, the rotation time of the winding shaft 120. When the timer reaches the preset time, the amount of yarn wound on the bobbin is exactly as required. The timer then sends an electrical signal to the controller. Upon receiving the electrical signal, the controller sends a power-off signal to the drive motor 110, thereby de-energizing the drive motor 110 and stopping its rotation.

[0054] This invention controls the start and stop of the drive motor 110 by controlling the duration of the timer, thereby achieving precise control of the winding amount and ensuring that the winding can be automatically stopped when the required winding amount is reached.

[0055] When shipped from the factory, three settings can be configured according to commonly used thread types (the thickness of the thread affects the winding time when the amount of thread is the same). At the same time, "+" and "-" settings can be set on the control panel, and workers can also freely adjust the winding time according to actual usage.

[0056] Compared with the prior art, this application has at least the following beneficial technical effects:

[0057] The winding device of this invention has a simple structure, does not require mechanical limiters such as adjusting screws to control the winding amount, and effectively avoids the problems of poor contact and insensitive response caused by sensor control.

[0058] This invention uses an independent drive motor to control the winding, and a battery is installed in the control panel. It can operate the winding operation independently when the sewing machine is powered off, achieving the purpose of energy saving and consumption reduction. At the same time, the winding speed is not affected by the spindle speed, making it convenient to control the winding speed.

[0059] The winding device of this invention controls the winding amount by adjusting the duration of the timer. Multiple winding amounts can be freely adjusted. It can be operated directly from the control panel without the need for any mechanical tools, making it simple and quick to use.

[0060] The winding device of this invention requires no mechanical limit or sensor device, is highly integrated, and is inexpensive, making it very suitable for mass industrial production.

[0061] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A winding device, characterized in that, The winding device (100) includes: a drive motor (110), a winding shaft (120), a winding support plate (130), a spring plate (140), a controller, and a timer. The bottom end of the winding shaft (120) is connected to the power output shaft (111) of the drive motor (110). The winding support plate (130) is fixedly sleeved on the periphery of the winding shaft (120). The spring plate (140) is installed on the winding shaft (120). The controller is electrically connected to the drive motor (110) and the timer respectively, and the controller can control the drive motor (110) to cut off the power according to the timing information of the timer.

2. A winding device according to claim 1, characterized in that, The bottom end of the winding shaft (120) is formed with a connecting hole (121) and a mounting hole (122) that intersect and communicate with each other. The power output shaft (111) of the drive motor (110) is coaxially inserted in the connecting hole (121), and a fastening screw is installed in the mounting hole (122).

3. A winding device according to claim 1, characterized in that, An axial groove (123) is formed on one side of the winding shaft (120), and a radial hole (124) communicating with the axial groove (123) is formed at the top of the winding shaft (120). The top of the spring sheet (140) is inserted into the radial hole (124), and the bottom of the spring sheet (140) abuts against the axial groove (123).

4. A winding device according to claim 1, characterized in that, A limiting ring (131) is formed on the upper surface of the winding support disk (130).

5. A winding device according to claim 1, characterized in that, The drive motor (110), controller, and timer are electrically connected to the battery.

6. A sewing machine, characterized in that, The device includes a winder (100) and a housing (200) as described in any one of claims 1-5. The top of the housing (200) is provided with a stepped hole (210). The winder (100) is disposed in the stepped hole (210). The drive motor (110) is located in the inner cavity of the housing (200) and is fixedly connected to the housing (200).

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