Frame pressing device and sewing equipment

Abstract

The utility model discloses a frame pressing device and sewing equipment, and relates to the technical field of sewing equipment. The device comprises an x-axis module, the x-axis module comprises an installation frame and a first transmission assembly used for driving a pressing frame to move in the x-axis direction, the x-axis module further comprises a second transmission assembly and a fixedly-installed power motor, and the two ends of the first transmission assembly are the first end and the second end respectively; the power motor is arranged at the position between the first end and the second end, the power motor is in transmission connection with the second transmission assembly, and the second transmission assembly is in transmission connection with the first transmission assembly. The second transmission assembly is arranged, and the power motor transmits power to the first transmission assembly through the second transmission assembly, so that the installation position of the power motor does not need to be fixedly arranged at the end of the x-axis module, and the problem that the precision of sewing equipment is affected due to vibration of the x-axis module caused by unbalance loading of the power motor is solved.

Description

Technical Field

[0001] This utility model relates to the field of sewing equipment technology, and specifically provides a frame pressing device and sewing equipment. Background Technology

[0002] When the sewing equipment is working, a pressure frame is used to press the fabric together. During the sewing process at the sewing machine head, the pressure frame moves, causing the fabric to move on the sewing machine platform. The movement of the pressure frame, in conjunction with the sewing machine head, achieves the sewing of the fabric. The movement of the pressure frame is achieved through a moving component, which includes mutually perpendicular x-axis and y-axis modules. The y-axis module is used to move the x-axis module, and the x-axis module is connected to the pressure frame, thus moving the pressure frame. The x-axis and y-axis modules work together to achieve the combined movement of the pressure frame.

[0003] Since the X-axis module moves under the influence of the Y-axis module, its motor is fixed to it. Furthermore, to facilitate fabric application and prevent the X-axis module from obstructing the fabric, it is supported by the Y-axis module, placing it in a suspended state. The X-axis module typically includes a frame, synchronous pulleys, and a synchronous belt. The pulleys are located at both ends of the frame, and the synchronous belt connects to them. The pressure frame is connected to the synchronous belt. The X-axis module includes a mounting frame with two synchronous pulleys at each end, forming the first and second ends of the synchronous belt drive mechanism. The output shaft of the motor is connected to one of the pulleys, driving its rotation. Rotation of the pulley causes the synchronous belt to move the pressure frame. The connection between the motor and the pulley results in a weight imbalance at both ends of the X-axis module, shifting the center of gravity towards the motor end. Due to the shift in the center of gravity and the fact that the x-axis module is suspended in the air, the sewing equipment will cause significant vibration at one end of the x-axis module during operation, thus affecting sewing accuracy. The greater the weight difference between the two ends of the x-axis module, the more severe the off-center loading of the x-axis module, the more obvious the vibration of the x-axis module during operation, and the greater the impact on sewing accuracy. Utility Model Content

[0004] This utility model provides a frame pressing device and sewing equipment to solve the problem that the significant vibration at one end of the x-axis module caused by the offset of the center of gravity of the power motor affects the sewing accuracy.

[0005] The technical solution of this utility model is as follows:

[0006] A frame pressing device includes an x-axis module. The x-axis module includes a mounting frame and a first transmission component for driving the frame pressing to move along the x-axis direction. The x-axis module also includes a second transmission component and a fixedly mounted power motor. The two ends of the first transmission component are a first end and a second end, respectively. The power motor is located between the first end and the second end. The power motor is driven by the second transmission component, and the second transmission component is driven by the first transmission component.

[0007] In this solution, by setting a second transmission component, the power motor no longer needs to be installed at the end of the x-axis module, that is, it does not need to be installed at the first or second end of the first transmission component. Instead, the power motor can be positioned closer to the center of the x-axis module, thereby reducing the center of gravity offset of the x-axis module and reducing the off-center load. By reducing the off-center load of the x-axis module, the vibration of the x-axis module during operation is reduced, thus improving sewing accuracy.

[0008] If the second transmission component is directly installed on the outside of the mounting frame, each component of the second transmission module is installed separately on the mounting frame, which is cumbersome to operate and easily interfered with by the first transmission component during installation. Therefore, the x-axis module also includes a bracket, on which the second transmission component is disposed, and the bracket is connected to the side of the mounting frame.

[0009] In this design, a bracket is used to mount the second transmission component. This eliminates the need for the second transmission component to be directly mounted on the outside of the mounting frame, allowing it to be installed onto the bracket, which is then connected to the mounting frame. The second transmission component can be installed onto the bracket first, and then the bracket can be connected to the mounting frame, making the operation simple and quick.

[0010] Preferably, the power motor is mounted on the bracket.

[0011] In this design, the power motor is mounted on the bracket, which reduces the number of components mounted on the mounting frame. In particular, when the power motor is located in the middle of the mounting frame, it can prevent the power motor from interfering with the installation of other components.

[0012] Preferably, the second transmission component is disposed on one side of the first transmission component and arranged along the length direction of the first transmission component.

[0013] In this solution, the way the second transmission component is set can avoid the significant increase in the volume of the x-axis module caused by adding a second transmission component, and avoid affecting the original layout of the x-axis module.

[0014] Preferably, the second transmission component is arranged in parallel with the first transmission component.

[0015] In this scheme, with the length of the second transmission component fixed, arranging it parallel to the first transmission component can maximize the position adjustment distance of the power motor and maximize the distance the center of gravity of the x-axis module can move.

[0016] In one alternative configuration, the power motor is located in the middle between the first end and the second end.

[0017] In this design, the power motor is centrally positioned, which undoubtedly moves the center of gravity of the x-axis module towards the center, reducing the off-center load phenomenon of the x-axis module and reducing the vibration caused by off-center load when the x-axis module is working.

[0018] In one optional configuration, the second transmission component is connected to the first end of the first transmission component, and the power motor is located between the middle and the second end of the first transmission component, so that the center of gravity of the x-axis module returns to the middle of the x-axis module.

[0019] In this solution, the overall influence of the power motor and the second transmission module on the center of gravity offset of the x-axis module can be obtained through calculation. The optimal installation position of the power motor can be obtained through calculation, so that the center of gravity of the x-axis module can be completely centered, and the vibration of the x-axis module caused by off-center load can be completely eliminated.

[0020] In another optional configuration, a y-axis module is also included, which is connected to the mounting frame. The y-axis module is used to drive the x-axis module to move along the y-axis direction, and the power motor is located at the connection between the y-axis module and the mounting frame.

[0021] In this design, the Y-axis module moves the position of the X-axis module. The entire X-axis module is supported by the Y-axis module. The power motor is located near the connection point of the Y-axis module. The distance between the power motor and the Y-axis module is close, essentially equivalent to the Y-axis module. Therefore, the connection point between the X-axis module and the Y-axis module experiences minimal vibration when the sewing machine is working, and the vibration caused by the gravity of the power motor is also minimized.

[0022] Since the y-axis module is used to drive the x-axis module to move, a guide rail is usually provided on the y-axis module to ensure that the x-axis module moves strictly in a straight line. However, the presence of the guide rail itself will interfere with the movement of the x-axis module. Therefore, the y-axis module is also included. The y-axis module includes a connecting beam, which is connected to the mounting frame. The power motor is fixedly connected to the connecting beam.

[0023] In this design, the connecting beam can extend the distance between other structures of the y-axis module and the x-axis module, thereby increasing the movement range of the x-axis module.

[0024] This application also provides a sewing device, including a sewing platform, wherein the sewing device employs the aforementioned frame pressing device.

[0025] The beneficial effects of this utility model are:

[0026] This invention includes a second transmission component, through which the power motor transmits power to the first transmission component. This eliminates the need for the power motor to be fixedly mounted at the end of the x-axis module, thus solving the problem of vibration in the x-axis module caused by off-center loading of the power motor, which affects the accuracy of the sewing equipment. Attached Figure Description

[0027] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a top-view cross-sectional view of Embodiment 1;

[0029] Figure 2 This is a schematic diagram of the structure of Example 4;

[0030] Figure 3 This is a top-view cross-sectional view of Example 5.

[0031] In the above figures, the corresponding reference numerals are as follows:

[0032] 1. Power motor; 2. Second transmission assembly; 3. Drive shaft; 4. Mounting frame; 5. First transmission assembly; 6. Pressure frame; 7. Bracket; 8. Y-axis module; 9. Sewing platform. Detailed Implementation

[0033] The technical solution of this utility model will be clearly and completely described in conjunction with the accompanying drawings and through specific embodiments.

[0034] Example 1:

[0035] like Figure 1As shown, this embodiment provides a frame pressing device, including an x-axis module for driving a frame pressing 6 to move along the x-axis direction and the frame pressing 6. The x-axis module includes a mounting frame 4, a first transmission assembly 5, a second transmission assembly 2, and a power motor 1. The first transmission assembly 5 and the second transmission assembly 2 are respectively connected to the mounting frame 4, and the second transmission assembly 2 is arranged along the length of the first transmission assembly 5. The frame pressing 6 is connected to the first transmission assembly 5, and the second transmission assembly 2 is connected to the power motor 1. A second connecting assembly is also connected to the first transmission assembly 5 to transmit power from the power motor 1 to the first transmission assembly 5, enabling the first transmission assembly 5 to drive the frame pressing 6 to move. The power motor 1 is connected to the mounting frame 4 and is located in the middle of the mounting frame 4. Positioning the power motor 1 in the middle of the mounting frame 4 allows for a more balanced load distribution on the mounting frame 4, thereby reducing vibration during the operation of the x-axis module.

[0036] The first transmission component 5 is a belt mechanism, comprising two pulleys and a belt. The two pulleys are rotatably connected to both ends of the mounting frame 4, and the belt is connected to the two pulleys. The pressure frame 6 is fixedly connected to a point on the belt. When the pulleys rotate, the belt moves under the action of the pulleys, thereby driving the pressure frame 6 to move.

[0037] As a preferred option, a synchronous belt is used for the belt, and a synchronous pulley is used for the pulley. Synchronous belts and synchronous pulleys have low procurement costs and high transmission accuracy, making it easy to accurately control the position of the pressure frame 6.

[0038] The second transmission assembly 2 can employ the same belt mechanism as the first transmission assembly 5, and the second transmission assembly 2 and the first transmission assembly 5 can be arranged in parallel. The second transmission assembly 2 also includes two pulleys and a belt. One pulley is connected to the output shaft of the power motor 1, and the other pulley is rotatably connected to the mounting frame 4. In the second transmission assembly 2, the pulley rotatably connected to the mounting frame 4 is coaxially arranged with one pulley of the first transmission assembly 5, and these two coaxial pulleys are connected to the same transmission shaft 3. The middle part of the transmission shaft 3 is connected to the two pulleys, and both ends of the transmission shaft 3 are rotatably connected to the mounting frame 4. A key can be provided on the transmission shaft 3, and keyways are provided on the two pulleys. The key and keyway cooperation prevents the two pulleys from rotating relative to each other. This allows the second transmission assembly 2 to output power from the power motor 1 to the first transmission assembly 5. The transmission shaft 3 serves as a transmission component between the first transmission assembly 5 and the second transmission assembly 2.

[0039] Although the second transmission component 2 needs to be connected to a pulley of the first transmission component 5, and the second transmission component 2 will also cause a certain degree of off-center load, the weight of the second transmission component 2 is much smaller than that of the power motor 1, and it will not generate vibration during operation. Therefore, setting the second transmission component 2 to transmit the power of the power motor 1, so that the power motor 1 can be positioned in the center, can completely reduce the vibration of the x-axis module during operation.

[0040] The second transmission component 2 also uses a synchronous belt and a synchronous pulley.

[0041] Optionally, a separate bracket 7 can be provided to install the second transmission assembly 2. The two pulleys of the second transmission assembly are installed at both ends of the bracket 7, the belt is connected to the pulleys, and the bracket 7 is connected to the mounting frame 4 by bolts or other fasteners.

[0042] The belt mechanism can be equipped with a tensioning pulley, therefore, the belt mechanism can have more than two pulleys.

[0043] The pulleys at both ends of the first transmission assembly 5 are designated as the first end and the second end of the first transmission assembly 5, respectively, and these two ends correspond to the two ends of the mounting frame 4. The power motor 1 can be positioned at the midpoint between the first end and the second end.

[0044] Because the second transmission component 2 itself has weight, although its weight is less than that of the power motor 1, it still causes a shift in the center of gravity of the x-axis module. Therefore, the weights of the power motor 1 and the second transmission component 2 can be calculated. The second transmission component 2 is connected to the first end of the first transmission component 5, and the power motor 1 is located at the midpoint between the first and second ends, slightly off-center from the second end, so that the center of gravity of the x-axis module is completely centered. This implementation can completely eliminate vibration caused by off-center loading due to the installation position of the power motor, while other methods reduce vibration caused by off-center loading.

[0045] The outer sides of the mounting frame 4 and bracket 7 can be sealed with plate-like materials such as plastic plates or iron plates to prevent external dust from affecting the first transmission component 5 and the second transmission component 2, and at the same time prevent the first transmission component 5 and the second transmission component 2 from contacting the seam material.

[0046] Example 2:

[0047] This embodiment two provides a frame pressing device. Unlike embodiment one, the structure used to realize the transmission connection between the first transmission component 5 and the second transmission component 2 is different in this embodiment two.

[0048] Two coaxially mounted pulleys are rotatably connected to the mounting frame 4. Flange holes distributed circumferentially between these two pulleys are used to secure them, allowing them to rotate synchronously. After passing through the flange holes, the bolts are secured with nuts to prevent them from coming loose.

[0049] The bolts here can be replaced by pins. After the pin passes through the flange hole, bending both ends of the pin can also prevent the pin from coming off.

[0050] Example 3:

[0051] This embodiment three provides a frame pressing device, which differs from embodiment one in that the first transmission component 5 is used in this embodiment three.

[0052] The first transmission assembly 5 is a lead screw and nut mechanism, including a lead screw, a nut pair, and a gear. Both ends of the lead screw are rotatably connected to the mounting frame 4. The nut pair is connected to the lead screw via a transmission mechanism, and the gear is connected to the lead screw. The second transmission assembly is connected to the gear.

[0053] At this time, when the second transmission component 2 adopts a belt mechanism, the pulley that is connected to the first transmission component 5 is also provided with a coaxial gear, which is connected to the gear of the first transmission component 5 through the gear.

[0054] Example 4:

[0055] like Figure 2 As shown, this embodiment four provides a frame pressing device. The difference from embodiment one is that the position of the power motor 1 in this embodiment four is different.

[0056] In this fourth embodiment, a y-axis module 8 is also included. The mounting frame 4 of the x-axis module is connected to the y-axis module 8, and the y-axis is used to drive the x-axis module to move. That is to say, the x-axis module is actually supported by the y-axis module 8. The power motor 1 is connected to the mounting frame 4 and is located on one side of the connection between the y-axis module 8 and the mounting frame 4.

[0057] Since the entire x-axis module is supported by the y-axis module 8, the connection between the x-axis module and the y-axis module 8 is the position with the least vibration impact. Therefore, installing the power motor 1 close to the y-axis module 8 can also reduce the vibration of the x-axis module.

[0058] The y-axis module 8 is equipped with a connecting beam and is connected to the x-axis module through the connecting beam. The power motor 1 is located on one side of the connecting beam.

[0059] Example 5:

[0060] like Figure 3As shown, this embodiment five provides a frame pressing device. The difference from embodiment one is that the position of the power motor 1 is different in this embodiment five.

[0061] In this fifth embodiment, a y-axis module 8 is also included. The mounting frame 4 of the x-axis module is connected to the y-axis module 8, and the y-axis is used to drive the x-axis module to move. That is to say, the x-axis module is actually supported by the y-axis module 8. The power motor 1 is connected to the y-axis module 8. Because the power motor 1 is directly mounted on the y-axis module 8, the off-center load of the power motor 1 on the x-axis module is minimized, which can effectively solve the problem of vibration of the x-axis module caused by the power motor 1.

[0062] Example 6:

[0063] This sixth embodiment provides a sewing device, including a sewing platform 9, which employs a pressing frame device from any one of embodiments one through five. The pressing frame device is disposed on the upper side of the sewing platform 9, which is used to support the sewing material, i.e., the sewing material is laid on the sewing platform 9, and the pressing frame device is used to press the sewing material tightly from above. The pressing frame device cooperates with the sewing platform 9 to press the sewing material tightly.

Claims

1. A pressing frame device, comprising an x-axis module, the x-axis module including a mounting frame (4) and a first transmission assembly (5) for driving the pressing frame (6) to move along the x-axis direction, characterized in that, The x-axis module also includes a second transmission component (2) and a fixedly installed power motor (1). The two ends of the first transmission component (5) are a first end and a second end, respectively. The power motor (1) is located between the first end and the second end. The power motor (1) is connected to the second transmission component (2) in a transmission manner. The second transmission component (2) is connected to the first transmission component (5) in a transmission manner.

2. The frame pressing device according to claim 1, characterized in that, The x-axis module also includes a bracket (7), the second transmission component (2) is disposed on the bracket (7), and the bracket (7) is connected to the side of the mounting frame (4).

3. The frame pressing device according to claim 2, characterized in that, The power motor (1) is mounted on the bracket (7).

4. The frame pressing device according to claim 1, characterized in that, The second transmission component (2) is disposed on one side of the first transmission component (5) and arranged along the length direction of the first transmission component (5).

5. A frame pressing device according to claim 1, characterized in that, The second transmission assembly (2) is arranged in parallel with the first transmission assembly (5).

6. The frame pressing device according to claim 1, characterized in that, The power motor (1) is located in the middle between the first end and the second end.

7. The frame pressing device according to claim 1, characterized in that, The second transmission component (2) is connected to the first end of the first transmission component (5), and the power motor (1) is located between the middle part and the second end of the first transmission component (5).

8. A frame pressing device according to claim 1, characterized in that, It also includes a y-axis module (8), which is connected to the mounting frame (4). The y-axis module (8) is used to drive the x-axis module to move along the y-axis direction. The power motor (1) is located at the connection between the y-axis module (8) and the mounting frame (4).

9. A frame pressing device according to claim 1, characterized in that, It also includes a y-axis module (8), which includes a connecting beam connected to the mounting frame (4), and the power motor (1) is fixedly connected to the connecting beam.

10. A sewing device, comprising a sewing platform (9), characterized in that, It also includes the frame pressing device according to any one of claims 1-9.

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