Sewing equipment with upper guide rail

Abstract

The utility model discloses sewing equipment with an upper guide rail, and relates to the technical field of sewing equipment. The sewing mechanism comprises a cantilever mechanism, a sewing platform and a y-axis module used for driving an x-axis module to move in the y-axis direction, the y-axis module comprises a guide part, the guide part is arranged on the cantilever mechanism and located on the upper side of the sewing platform, and a gap is formed between the guide part and the sewing platform. The guide rail is arranged on the cantilever and located on the upper side of the sewing platform, even if the guide rail needs to have a large number of coincident portions with the supporting beam, the coincident portions are located on the upper side of the sewing platform, the size of a strip-shaped hole in the sewing platform cannot be increased, and the movement range of the pressing frame can be made to be the largest.

Description

Technical Field

[0001] This utility model relates to the field of sewing equipment technology, and specifically provides a sewing device with a guide rail mounted on it. 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] The Y-axis module is typically mounted on the sewing platform and is used to move the X-axis module on the platform. The Y-axis module includes a power motor, a transmission mechanism, and a guide mechanism. The power motor transmits power through the transmission mechanism, causing the X-axis module to move along the sewing platform surface. The guide mechanism constrains the direction of movement of the X-axis module. The guide mechanism and transmission mechanism are usually located on the underside of the sewing platform to prevent the guide mechanism from obstructing the laying and movement of the fabric. To facilitate the connection between the guide mechanism and the X-axis module on the upper side of the sewing platform, a slotted hole is made through both the top and bottom of the sewing platform. The guide mechanism includes a slider and a support beam. A connecting plate is mounted on the slider, with its center passing through the slotted hole. The top of the connecting plate connects to the support beam, and its bottom connects to the slider. The support beam is used to connect to the X-axis module.

[0004] However, due to the heavy weight of the X-axis module and the pressure frame, the guide mechanism typically uses two or more sliders to ensure stability of the X-axis module. Each slider is connected to the support beam via a connecting plate. Because the sliders are always located within the guide mechanism and always connected to the support beam, there is always an overlap between the support beam and the guide mechanism. The length of the slotted hole needs to be adapted to the position of the sliders. The more sliders there are, the longer the corresponding slotted hole. In this case, the length of the slotted hole is the sum of the minimum overlap length between the support beam and the guide mechanism and the travel of the Y-axis module. The length of the slotted hole is always greater than the travel of the Y-axis module. The pressure frame's function is to press the fabric firmly, ensuring it lies flat on the sewing platform. However, the slotted hole prevents the bottom of the fabric from being supported, resulting in uneven fabric. Therefore, existing sewing equipment not only requires slotted holes on the sewing platform but also needs sufficiently long slots. In practice, the slotted hole significantly restricts the range of motion of the pressure frame, requiring a larger sewing platform with a smaller effective usable area, a problem that urgently needs to be addressed. Utility Model Content

[0005] This invention provides a sewing device with a guide rail mounted on it, which solves the problem that the length of the existing strip hole is too long, thus limiting the range of motion of the pressure frame.

[0006] The technical solution of this utility model is as follows:

[0007] A sewing device mounted on a guide rail includes a cantilever mechanism, a sewing platform, and a y-axis module for driving an x-axis module to move along the y-axis direction. The y-axis module includes a guide portion for guiding along the y-axis direction. The guide portion is disposed on the cantilever mechanism and located above the sewing platform. There is a gap between the guide portion and the sewing platform.

[0008] In this solution, because the guide rail of the Y-axis module is set on the cantilever mechanism, the guide part can be located on the upper side of the sewing platform. Therefore, when installing structures such as support beams, the length of the strip hole on the sewing platform will not change due to the guide part. This allows the length of the strip hole to be the same as the stroke of the Y-axis module, thereby achieving the effect of reducing the length of the strip hole and making the pressure frame have a larger range of motion.

[0009] The cantilever mechanism is used to mount a sewing machine head. It includes a support section for support and an extension section for mounting the sewing machine head. Because the extension section is far from the sewing platform, mounting the guide section on the extension section would result in an excessively large gap with the support beam, making connection difficult. If the guide rail is mounted on the support section, only the middle of the guide section connects to the cantilever, leaving the two ends of the guide section unsupported. During operation, the two ends of the guide rail vibrate and deform, reducing the installation accuracy of the cantilever. Therefore, the cantilever mechanism has an outwardly protruding extension section on its side, and the guide section connects to the extension section.

[0010] In this solution, an extension section can be provided in the support part of the cantilever mechanism. The extension section is located in the support part, so the distance between it and the sewing platform is small. Furthermore, the extension mechanism extends in the horizontal direction and has a larger size, which can fix both ends of the guide rail and fix all parts of the guide rail, ensuring the accuracy of the guide rail.

[0011] The force acting on the guide rail comes from the lower side. After long-term operation, the guide rail may shift to the lower side. If the guide rail is connected to the side of the extension, it is difficult to adjust the shift of the guide rail. Therefore, the guide part is connected to the bottom of the extension part; and / or, guide parts are provided on both sides of the cantilever mechanism.

[0012] In this design, because the guide section is connected to the bottom of the extension section, even if the guide section shifts downwards, it is only necessary to retighten the bolts and other fasteners that fix the guide section. This operation is simple and efficient, reducing the difficulty of later maintenance. Providing guide sections on both sides increases the support points for the x-axis module, thereby improving the support effect and stability of the x-axis module.

[0013] Preferably, the guide portion includes a guide rail, which is disposed on the cantilever mechanism.

[0014] In this design, the guide rail is connected to the cantilever mechanism. Compared to setting the guide rail on the support beam used to connect the X-axis module, this connection provides more connection points and makes the guide rail installation more stable. Furthermore, if the guide rail is set on the support beam, the total length of the guide rail and support beam is very large. As the support beam moves, the stress points on the guide rail and support beam constantly change, leading to altered stress on the X-axis module and the pressure frame mounted on it, thus affecting the pressure frame's ability to compress the seam material.

[0015] To improve the accuracy of the x-axis module's guiding function, guide rails are installed on both sides of the cantilever mechanism, and all guide rails are parallel to each other.

[0016] In this design, guide rails are provided on both sides of the cantilever mechanism. When the x-axis module moves, it is guided by the guide rails on both sides of the cantilever mechanism. Even if one guide rail becomes loose, the other guide rails can still provide guidance, ensuring that the x-axis module moves in an accurate direction.

[0017] Preferably, the sewing equipment further includes a frame for supporting the sewing platform, the cantilever mechanism includes an upper arm and a mounting base, the sewing platform is mounted on the frame, the upper arm is connected to the mounting base, the mounting base is connected to the frame, and the guide portion is disposed on the mounting base.

[0018] In this design, a mounting base is used to install the upper arm. The upper arm and mounting base can be manufactured separately, allowing for a more complex cantilever mechanism structure and increased functionality. Furthermore, during installation, the components of the cantilever mechanism can be installed progressively, and the weight of a single upper arm and mounting base is less than the weight of the entire cantilever mechanism, reducing installation difficulty. The guide section is located on the mounting base, simplifying the manufacturing of the upper arm and reducing machining complexity.

[0019] To facilitate the processing of the extension portion, the cantilever mechanism includes an upper arm and a mounting base. The mounting base has an extension portion protruding outward on its side, and the guide portion is disposed on the extension portion.

[0020] In this solution, machining the extension part on the mounting base is less difficult than machining the extension part on the upper arm.

[0021] Preferably, the upper arm is detachably connected to the mounting base, and the mounting base is detachably connected to the frame; and / or, the mounting base includes an upper support and a lower support, the lower support is connected to the frame, the upper support is connected to the upper arm, the upper support is connected to the lower support, and the extension is disposed on the upper support.

[0022] In this design, the upper arm and mounting base are detachably connected, facilitating individual maintenance of the upper arm. Similarly, the mounting base is detachably connected to the frame, also facilitating maintenance. The mounting base consists of an upper support and a lower support. These can be manufactured separately and then connected to form the mounting base. The upper support requires extension structures, while the lower support, to improve overall cantilever stability, has a larger bottom dimension than top dimension, providing more connection points between the lower support and the frame, thus enhancing the overall stability of the cantilever mechanism. Therefore, the mounting base has a structure with large dimensions at both ends and a small dimension in the middle. This structure is difficult to manufacture. This application solves this manufacturing difficulty by dividing the mounting base into upper and lower supports.

[0023] The y-axis module is used to drive the x-axis module. The y-axis module needs to be equipped with a transmission mechanism to transmit power. In order to solve the problem that the transmission mechanism affects the movement of the x-axis module, the y-axis module also includes a transmission mechanism, a motor, and a support beam for connecting the x-axis module. The sewing platform has a strip hole along the y-axis direction.

[0024] The transmission mechanism is located below the sewing platform, and the motor is connected to the transmission mechanism.

[0025] The support beam is located above the sewing platform. The transmission mechanism is connected to the support beam via a slotted hole. The support beam is provided with a mating part that adapts to the guide part. The mating part and the guide part form a sliding pair along the y-axis. The motor is used to drive the support beam to move along the y-axis.

[0026] In this design, because the transmission mechanism of the Y-axis module is located below the sewing platform and is connected to the end of the support beam, it can transmit power to the support beam, thereby moving the X-axis module. Since the transmission mechanism is located below the sewing platform, it itself does not affect the movement of the X-axis module.

[0027] Preferably, the guide portion includes a guide rail, and the mating portion is a slider adapted to the guide rail;

[0028] And / or, the transmission mechanism is a belt drive mechanism;

[0029] And / or, also includes an x-axis module connected to the support beam.

[0030] In this design, the guide section can achieve a sliding fit between the guide rail and the slider of the mating section, allowing the support beam to slide smoothly along the y-axis. The transmission mechanism employs a belt drive, which offers advantages such as light weight and low cost.

[0031] The beneficial effects of this utility model are:

[0032] This invention sets the guide rail on the cantilever, so that the guide rail is located on the upper side of the sewing platform. Even if the guide rail needs to have a large overlap with the support beam, the overlap part is also located on the upper side of the sewing platform, which will not cause the size of the strip hole on the sewing platform to increase, and can maximize the range of motion of the pressure frame. Attached Figure Description

[0033] 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.

[0034] Figure 1 This is the front view of the present invention;

[0035] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0036] Figure 3 This is a schematic diagram of the structure of this utility model;

[0037] Figure 4 This is a schematic diagram of the structure of the mounting base of this utility model;

[0038] Figure 5 This is a front view of the mounting base of this utility model;

[0039] Figure 6 This is a left view of the mounting base of this utility model.

[0040] In the above figures, the corresponding reference numerals are as follows:

[0041] 1. Cantilever mechanism; 2. Frame; 3. Sewing platform; 4. Y-axis module; 5. X-axis module; 6. Strip hole; 11. Upper arm; 12. Extension section; 13. Upper support; 14. Lower support; 41. Guide rail; 42. Transmission mechanism; 43. Slider; 44. Connecting block; 45. Support beam; 46. Power motor. Detailed Implementation

[0042] The technical solution of this utility model will be clearly and completely described in conjunction with the accompanying drawings and through specific embodiments.

[0043] Example 1:

[0044] like Figure 1As shown, this embodiment provides a sewing device with a guide rail mounted on it, including a cantilever mechanism 1, a frame 2, a sewing platform 3, and a Y-axis module 4. The Y-axis module 4 includes a guide rail 41, a transmission mechanism 42, a support beam 45, and a power motor 46. The cantilever mechanism 1 and the sewing platform 3 are connected to the frame 2. The top of the cantilever mechanism 1 is located on the upper side of the sewing platform 3. The guide rail 41 is connected to the cantilever mechanism 1, so that the guide rail 41 is located on the upper side of the sewing platform 3. The transmission mechanism 42 and the power motor 46 are connected to the frame 2, and the transmission mechanism 42 and the power motor 46 are located on the lower side of the sewing platform 3. A slider 43 is provided on the guide rail 41, and the slider 43 is connected to the support beam. A connecting block 44 is provided on the transmission mechanism 42, and the connecting block 44 is connected to the end of the cantilever.

[0045] The sewing equipment includes an x-axis module and a presser frame. The y-axis module 4 drives the x-axis module 5 to move in the y-axis direction, while the x-axis module 5 drives the presser frame to move along the x-axis direction. The combined action of the x-axis module and the y-axis module allows the presser frame to move horizontally on the sewing platform 3.

[0046] The sewing platform 3 has a slotted hole 6 that extends through both the upper and lower sides of the sewing platform 3. A connecting block 44 passes through the slotted hole 6 and connects to the cantilever. The length of the slotted hole 6 is parallel to the sliding direction of the slider 43.

[0047] The system includes two Y-axis modules 4, with guide rails 41 on opposite sides of the cantilever. The sewing platform 3 has two corresponding slotted holes 6. It should be noted that each Y-axis module includes guide rails 41, sliders 43, transmission mechanisms 42, support beams 45, and a power motor 46. The two Y-axis modules, and two power motors 46, have their power sources aligned. However, this can cause asynchrony between the two Y-axis modules. To solve this problem, each Y-axis module can be equipped with two guide rails 41, two transmission mechanisms 42, two support beams 45, and one power motor 46. One power motor 46 simultaneously drives both transmission mechanisms 42, enabling them to work synchronously.

[0048] Two guide rails 41 are respectively set on both sides of the cantilever mechanism 1, and the two guide rails 41 are parallel to each other. A slider 43 is set on each of the two guide rails 41, and the slider 43 is connected to the two support beams 45 respectively to ensure that the two support beams 45 can move synchronously.

[0049] At least two sliders 43 are provided on the guide rail 41, and each slider 43 is connected to the support beam. The guide rail 41 serves as a guide, and the sliders 43 serve as mating parts that cooperate with the guide.

[0050] Optionally, the slider 43 can be mounted on the cantilever, and the guide rail 41 can be mounted on the support beam 45, which can also achieve the guiding effect. In this case, the slider 43 serves as the guiding part, and the guide rail 41 serves as the mating part.

[0051] When the guide rail 41 is connected to the cantilever mechanism 1, there is a gap between the guide rail 41 and the sewing platform 3. When the slider 43 is connected to the cantilever mechanism 1, there is a gap between the slider 43 and the sewing platform.

[0052] The transmission mechanism 42 can be a belt mechanism or a screw and nut mechanism. Taking the belt mechanism as an example, the belt mechanism includes a belt and two pulleys, which are rotatably connected to the frame 2. The belt is connected to the two pulleys. The output shaft of the power motor 46 is connected to one of the pulleys to drive it. The connecting block 44 is connected to the belt.

[0053] The connection between the connecting block 44 and the belt can be fixed with bolts. The belt has through holes, and the connecting block 44 has screw holes. The bolts pass through the through holes and connect with the screw holes to fix the connecting block 44 to the belt.

[0054] The slider 43 and the support beam 45 can be directly connected by bolts or indirectly connected by a connecting plate. The connecting plate has multiple through holes, and the slider 43 and support beam 45 each have screw holes. Bolts through the through holes of the connecting plate connect to the slider 43 and support beam 45. The bolts pass through the through holes and then connect to the screw holes.

[0055] Example 2:

[0056] like Figure 2 and Figure 3 As shown, this second embodiment provides a sewing device mounted on a guide rail. Unlike the first embodiment, in this second embodiment, the cantilever mechanism 1 includes an extension portion 12 and an upper arm 11. The extension portion 12 is connected to the upper arm 11 and is a plate-like structure extending horizontally on the upper arm 11. The guide rail 41 is connected to the bottom surface of the extension portion 12.

[0057] The extension 12 can be welded or bolted to the cantilever mechanism 1.

[0058] Alternatively, the extension 12 is integrally formed with the cantilever mechanism 1, and the side of the cantilever mechanism 1 protrudes outward to form the extension 12.

[0059] The extension portion 12 extends in the sliding direction of the slider 43. The extension portion 12 increases the length dimension, so that both ends of the guide rail 41 are fixed and supported. This improves the stability of the guide rail 41 and makes the movement accuracy of the support beam higher.

[0060] The extension 12 extends toward a side perpendicular to the sliding direction of the slider 43, allowing the guide rail 41 to be mounted at the bottom of the extension 12, thus increasing the distance between the two guide rails 41. Simultaneously, the force exerted on the guide rail 41 by the slider 43 is vertical, and the interaction force between the guide rail 41 and the extension 12 is also vertical, preventing the guide rail 41 from being subjected to uneven loading and resulting in reduced accuracy during long-term operation.

[0061] Example 3:

[0062] This embodiment three provides a sewing device mounted on a guide rail. Unlike embodiment one, the cantilever mechanism 1 in this embodiment four also includes a mounting base and an upper arm 11. The extension portion 12 is located on the mounting base, and the top of the mounting base is connected to the bottom of the upper arm 11.

[0063] The mounting base is connected to the upper arm 11 by bolts or welding.

[0064] The advantage of using a mounting base is that existing cantilever arms can be directly mounted onto it, or the design dimensions of existing cantilever arms can be adjusted to connect and use with the mounting base. This method makes the mounting base a universal component, suitable for various models of sewing equipment, thus reducing modification and design costs.

[0065] Example 4:

[0066] This embodiment four provides a sewing device mounted on a guide rail. Unlike embodiment one, the mounting base in this embodiment five includes an upper support 13 and a lower support 14.

[0067] like Figure 4 , Figure 5 and Figure 6 As shown, the bottom of the upper support 13 is connected to the top of the lower support 14. The extension 12 is located at the bottom of the upper support 13 or the top of the lower support 14, so that the extension 12 can be integrally formed with the upper support 13 or the lower support 14.

[0068] The upper support 13 and the lower support 14 can be connected by bolts or by welding.

[0069] The lower support 14 is connected to the frame 2, and the upper support 13 is connected to the upper arm 11.

[0070] The mounting base can be cast, but the larger the size of the mounting base, the more difficult it is to cast. Therefore, dividing the mounting base into two parts, the upper support 13 and the lower support 14, can reduce the casting difficulty.

[0071] Optionally, the transmission mechanism 42 is connected to the lower support 14, and the power motor 46 is connected to the upper support 13. One end of the upper support 13 extends out to the sewing platform 3, and the power motor 46 is connected to the part of the upper support 13 that extends out to the sewing platform 3. This arrangement allows for more flexible adjustment of the distance between the output shaft of the power motor 46 and the bottom surface of the sewing platform 3, thereby ensuring that the transmission mechanism 42 is in close contact with the bottom surface of the sewing platform 3. This results in a smaller connecting block 44, avoiding errors caused by an excessively large connecting block 44. It should be noted that if the transmission mechanism 42 uses a belt mechanism, a larger transmission block will result in greater weight and a greater likelihood of belt bending, leading to errors.

[0072] Furthermore, since most of the upper arm 11 is suspended, an upper support 13 is connected to the upper arm 11, and the upper support 13 is connected to the lower support 14. The lower support 14 is then connected to the frame 2. The volume of the lower support 14 can be larger, increasing the connection points with the frame 2, so that the connection between the cantilever mechanism 1 and the frame 2 can be more stable.

[0073] Example 5:

[0074] This fifth embodiment provides a sewing device mounted on a guide rail 41. Unlike the first embodiment, the structure used to guide the support beam 45 is different in this fifth embodiment.

[0075] The cantilever mechanism 1 is provided with a groove along the y-axis, which serves as a guide. The support beam 45 is provided with a slider 43 that mates with the groove, and the slider 43 is slidably connected to the groove. When the slider 43 slides along the groove, the support beam 45 also moves along the y-axis.

[0076] The slider 43 and the support beam 45 can be fixedly connected by bolts or other fasteners. Alternatively, the slider 43 and the support beam 45 can be connected by welding.

[0077] The slider 43 serves as a mating part that adapts to the groove.

[0078] The slide can be located on the side of the cantilever mechanism 1.

[0079] Alternatively, the cantilever mechanism 1 may have an extension 12 protruding outward on its side, and the slide groove may be provided on the bottom or side of the extension 12.

[0080] Optionally, the guide part can also be a guide rod, with both ends fixedly connected to the cantilever mechanism, and the axis of the guide rod parallel to the y-axis. The mating part includes a sleeve, the inner diameter of which is the same as the outer diameter of the guide rod. The sleeve is fitted onto the guide rod and can slide along the axis of the guide rod. The number of sleeves can be one, two, three, or more. The sleeve and the support beam can be connected by welding, or holes can be drilled in the side wall of the sleeve, and the sleeve and the support beam can be connected by bolts.

Claims

1. An over-track sewing device, comprising a cantilever mechanism (1), a sewing platform (3) and a y-axis module (4) for driving an x-axis module (5) to move along the y-axis direction, characterized in that, The y-axis module (4) comprises a guide part for guiding in the y-axis direction, the guide part is arranged on the cantilever mechanism (1), the guide part is located on the upper side of the sewing platform (3), and the guide part has a gap with the sewing platform (3).

2. The overhead sewing apparatus according to claim 1, wherein The side of the cantilever mechanism (1) is provided with an extension part (12) protruding outward, and the guide part is connected with the extension part (12).

3. The overhead sewing apparatus of claim 2 wherein, The guide part is connected with the bottom of the extension part (12). The two sides of the cantilever mechanism (1) are provided with guide parts.

4. The overhead sewing apparatus of claim 1 wherein, The guide part comprises a guide rail (41), and the guide rail (41) is arranged on the cantilever mechanism (1).

5. The overhead sewing apparatus of claim 4 wherein, The two sides of the cantilever mechanism (1) are respectively provided with guide rails (41), and each guide rail (41) is parallel to each other.

6. The overhead sewing device of claim 1 wherein, Further comprising a rack (2) for supporting the sewing platform (3); the cantilever mechanism (1) comprises an upper arm (11) and a mounting seat, the sewing platform (3) is mounted on the rack (2), the upper arm (11) is connected to the mounting seat, the mounting seat is connected to the rack (2), and the guide part is arranged on the mounting seat.

7. The overhead sewing device of claim 6, wherein the guide rail is a curved guide rail. The side of the mounting seat is provided with an extension part (12) protruding outward, and the guide part is arranged on the extension part (12).

8. The overhead sewing apparatus of claim 7 wherein, The upper arm (11) is detachably connected to the mounting seat, and the mounting seat is detachably connected to the rack (2). Further, the mounting seat comprises an upper support (13) and a lower support (14), the lower support (14) is connected with the rack (2), the upper support (13) is connected with the upper arm (11), the upper support (13) is connected with the lower support (14), and the extension part (12) is arranged on the upper support (13).

9. The overhead sewing apparatus of any one of claims 1-8, wherein, The y-axis module (4) further comprises a transmission mechanism (42), a motor and a support beam (45) for connecting the x-axis module (5), and the sewing platform (3) is provided with a strip-shaped hole (6) in the y-axis direction. The transmission mechanism (42) is located on the lower side of the sewing platform (3), and the motor is in transmission connection with the transmission mechanism (42). The support beam (45) is located on the upper side of the sewing platform (3), the transmission mechanism (42) is in transmission connection with the support beam (45) through the strip-shaped hole (6), the support beam (45) is provided with a matching part matched with the guide part, the matching part and the guide part constitute a moving pair in the y-axis direction, and the motor is used for driving the support beam (45) to move in the y-axis direction.

10. The overhead sewing apparatus of claim 9 wherein, The guide part comprises a guide rail (41), and the matching part is a sliding block (43) matched with the guide rail (41). Further, the transmission mechanism (42) is a belt transmission mechanism. Further, the x-axis module (5) is connected to the support beam (45).

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