Solar blanket sewing apparatus

Abstract

The application provides a sun blanket sewing device, a gantry is installed on the upper surface of a base through a plurality of Y-direction moving mechanisms, the lower surface of the base is provided with a plurality of moving air floating supports; the upper beam and the lower beam of the gantry are both provided with an X-direction moving mechanism and are divided into an X-direction upper moving mechanism and an X-direction lower moving mechanism, a Z-direction moving mechanism includes a Z-direction upper moving mechanism and a Z-direction lower moving mechanism; the Z-direction upper moving mechanism is connected to the X-direction upper moving mechanism, the Z-direction lower moving mechanism is connected to the X-direction lower moving mechanism, the Z-direction upper moving mechanism is installed with an upper machine head, and the Z-direction lower moving mechanism is installed with a lower machine head; the X-direction moving mechanism, the Y-direction moving mechanism and the Z-direction moving mechanism are used for adjusting the upper machine head and the lower machine head. The application can realize automatic sewing of the sun blanket through three-direction movement of the upper and lower machine heads under the condition that the sun blanket is fixed.

Description

Technical Field

[0001] This invention belongs to the field of sewing machinery, and in particular relates to equipment for sewing sun blankets. Background Technology

[0002] With the development of the times and the continuous progress of science and technology, my country's comprehensive strength is constantly increasing, and my country has also made remarkable achievements in aerospace, now at the forefront of the world. Solar arrays play a crucial role in ensuring the normal operation of probes. Solar arrays are divided into rigid, semi-rigid, and flexible types. Among them, flexible solar arrays are widely considered an important form of next-generation satellite energy due to their small envelope requirements, high design flexibility, and easy expansion. A flexible solar array consists of multiple triangular solar blankets, on which photovoltaic panels and honeycomb cables are attached. The triangular solar blankets are assembled into a complete solar array using an overlapping and stitching method. Photovoltaic panels and honeycomb cables are not allowed in the overlapping and stitching area. The photovoltaic panels of the solar array are made of special materials with poor toughness, making them extremely prone to brittle fracture and expensive. Therefore, during the stitching process, the solar blankets must not bear any stress other than their own weight. Based on these requirements, during the overlapping and stitching process, the solar blankets need to be clamped and fixed using specific tooling to prevent folding, which would subject them to additional stress, damage the photovoltaic panels, and cause huge economic losses. The sewing device of the present invention can automatically sew the sun blanket by moving the upper and lower sewing heads in three directions while the sun blanket is fixed. There is currently no sewing device on the market that meets this requirement. Therefore, it is of great significance to design a sewing device that can complete the sewing action of the sun blanket. Summary of the Invention

[0003] In view of this, the present invention aims to propose a sun blanket sewing device that can automatically sew sun blankets by moving the upper and lower sewing heads in three directions while the sun blankets are fixed.

[0004] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0005] A sun blanket sewing machine includes a base, a gantry beam, an X-axis moving mechanism, a Y-axis moving mechanism, a servo electric cylinder, a Z-axis moving mechanism, an upper sewing head, a lower sewing head, and movable air-bearing supports. The gantry beam is installed on the upper surface of the base via several Y-axis moving mechanisms, and several movable air-bearing supports are provided on the lower surface of the base. The upper and lower beams of the gantry beam each have an X-axis moving mechanism, which is divided into an X-axis upward moving mechanism and an X-axis downward moving mechanism. The Z-axis moving mechanism includes a Z-axis upward moving mechanism and a Z-axis downward moving mechanism. The Z-axis upward moving mechanism is connected to the X-axis upward moving mechanism, and the Z-axis downward moving mechanism is connected to the X-axis downward moving mechanism. The upper sewing head is installed in the Z-axis upward moving mechanism, and the lower sewing head is installed in the Z-axis downward moving mechanism. The X-axis, Y-axis, and Z-axis moving mechanisms are used to adjust the upper and lower sewing heads. The ends of the upper and lower beams are connected via servo electric cylinders. A control box is located on one side of the gantry beam.

[0006] Furthermore, the gantry beam has an overall U-shaped structure, including an upper beam, a connecting beam, and a lower beam connected end to end. The lower beam, which is parallel to the upper beam, is installed on the base through several Y-axis moving mechanisms to realize the movement of the gantry beam in the Y-axis direction.

[0007] Furthermore, the Y-axis moving mechanism includes several Y-axis guiding mechanisms and Y-axis driving mechanisms. The Y-axis guiding mechanism includes a Y-axis guide seat, on which a Y-axis guide slide rail is provided. The lower beam is slidably connected to the Y-axis guide slide rail via a Y-axis guide slider. The Y-axis driving mechanism includes a Y-axis driving motor, a Y-axis driving screw, and a Y-axis driving nut seat. The Y-axis driving motor is mounted on the base, and the Y-axis driving screw is connected to the output end of the Y-axis driving motor. The bottom of the lower beam is connected to the Y-axis driving screw via the Y-axis driving nut seat to drive the gantry beam.

[0008] Furthermore, the number of Y-direction guiding mechanisms is at least four, and they are evenly distributed between the lower beam and the base; the Y-direction driving mechanism is located in the middle of the lower beam.

[0009] Furthermore, the X-axis upward movement mechanism and the X-axis downward movement mechanism in the X-axis moving mechanism have the same structure. The X-axis downward movement mechanism includes an X-axis downward drive motor, an X-axis downward movement slide rail, an X-axis downward movement slider, an X-axis downward movement lead screw, and an X-axis downward movement nut seat. The upper surface of the lower beam is provided with a positioning step. Two parallel X-axis downward movement slide rails are installed to the positioning step through slide rail pressure plates. The X-axis downward drive motor is installed to the connecting beam. The X-axis downward movement lead screw is disposed between the two X-axis downward movement slide rails, and its end is connected to the output end of the X-axis downward drive motor. The X-axis downward movement nut seat is slidably connected to the two X-axis downward movement slide rails through several X-axis downward movement sliders. The X-axis downward movement nut seat is also connected in cooperation with the X-axis downward movement lead screw.

[0010] Furthermore, the X-downward sliding rail is provided with limiting mechanisms at both ends for limiting the X-downward moving nut seat.

[0011] Furthermore, the Z-upward moving mechanism and the Z-downward moving mechanism have the same structure; the Z-downward moving mechanism includes a Z-downward base plate, a Z-downward drive motor, a Z-downward moving screw, and a Z-downward moving frame. The Z-downward moving frame is mounted to the Z-downward moving nut seat via the Z-downward base plate; the Z-downward moving frame is equipped with a Z-downward moving screw, the Z-downward drive motor is mounted to the Z-downward base plate, and its output end is connected to the Z-downward moving screw; the Z-downward nut seat cooperates with the Z-downward moving screw to realize the movement of the Z-downward nut seat in the Z direction; the lower machine head is mounted to the Z-downward nut seat via a mounting plate.

[0012] Furthermore, the upper head is mounted to the Z-upward nut seat via a mounting plate; and the positions of the upper head and the lower head correspond to each other.

[0013] Compared with existing technologies, the sun blanket sewing equipment of the present invention has the following advantages:

[0014] (1) The sun blanket sewing equipment of the present invention can adjust the deviation of the equipment relative to the sun blanket in the X and Y directions under the manual operation module, and then start the automatic pre-sewing and sewing operation from the adjusted position. The equipment can be set with different sewing parameters; the tension of the needle thread (the tension of the top thread and the tension of the bottom thread) can be adjusted according to requirements.

[0015] (2) The sun blanket sewing equipment of the present invention can move in three directions: X, Y and Z. The X and Z axes have two-dimensional linkage function. The Z direction has a laser displacement sensor, which can be used to detect the distance between the upper and lower sewing heads and the blanket surface. It can ensure normal operation even if there is a slight error in the installation of the sun blanket. At the same time, it can keep the lower sewing head in natural contact with the sun blanket to avoid bringing additional compressive stress to the sun blanket.

[0016] (3) The sun blanket sewing equipment of the present invention has log saving and retrieval functions, and can save parameters so that they do not need to be re-entered for the next use and can be directly retrieved; the equipment has a single-axis debugging function. During single-axis debugging, if an error alarm occurs, the error can be cleared and the device can be reset to continue debugging. The equipment has a virtual image function. During pre-sewing, the laser displacement sensor detects the deviation between the actual position and the theoretical position of the blanket surface and displays the deviation as a line graph.

[0017] (4) The sun blanket sewing equipment described in this invention can protect the product and enter a shutdown protection state within 0.1 seconds when the machine malfunctions. At the same time, the supports at both ends of the gantry frame reduce mechanical vibration, resulting in good rigidity and high precision. The sewing equipment is fully functional, safe, and reliable, successfully solving the sewing problem of flexible sun blankets. Attached Figure Description

[0018] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0019] Figure 1 This is a schematic diagram of the sun blanket sewing equipment according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the X-axis moving mechanism according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the Y-axis moving mechanism according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the Y-axis upward-facing machine head according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the Y-shaped downward-facing machine head according to an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Base; 11. Movable air-bearing support; 2. Gantry beam; 21. Upper beam; 22. Connecting beam; 23. Lower beam; 3. X-axis moving mechanism; 31. X-axis upward moving mechanism; 32. X-axis downward moving mechanism; 321. X-axis downward drive motor; 322. X-axis downward moving slide rail; 323. X-axis downward moving lead screw; 324. X-axis downward moving nut seat; 4. Y-axis moving mechanism; 41. Y-axis guide mechanism; 411. Y-axis guide seat; 412. Y-axis guide slide rail 42. Y-axis drive mechanism; 421. Y-axis drive motor; 422. Y-axis drive screw; 423. Y-axis drive nut seat; 5. Servo motor cylinder; 6. Z-axis moving mechanism; 61. Z-axis upward moving mechanism; 62. Z-axis downward moving mechanism; 621. Z-axis downward base plate; 622. Z-axis downward drive motor; 623. Z-axis downward moving screw; 624. Z-axis downward nut seat; 625. Z-axis downward moving frame; 7. Upper machine head; 8. Lower machine head; 9. Control box. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and 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 of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] Sun blanket sewing equipment, such as Figures 1-5 As shown, the equipment includes a base 1, a gantry beam, an X-axis moving mechanism 3, a Y-axis moving mechanism 4, a servo electric cylinder, a Z-axis moving mechanism 6, an upper machine head 7, a lower machine head 8, and movable air-bearing supports 11. The gantry beam is installed on the upper surface of the base 1 via several Y-axis moving mechanisms 4. The lower surface of the base 1 is provided with several movable air-bearing supports 11 and several guide wheels. Preferably, the air-bearing supports are used for movement and adjustment on a cast iron work platform. When the equipment needs to be moved within the workshop during non-operational periods, the casters can be manually cranked to move the equipment.

[0031] The upper beam 21 and lower beam 23 of the gantry beam are each equipped with an X-axis moving mechanism 3, which is divided into an X-axis upward moving mechanism 31 and an X-axis downward moving mechanism 32. The Z-axis moving mechanism 6 includes a Z-axis upward moving mechanism 61 and a Z-axis downward moving mechanism 62. The Z-axis upward moving mechanism 61 is connected to the X-axis upward moving mechanism 31, and the Z-axis downward moving mechanism 62 is connected to the X-axis downward moving mechanism 32. The upper machine head 7 is installed on the Z-axis upward moving mechanism 61, and the lower machine head 8 is installed on the Z-axis downward moving mechanism 62. The X-axis moving mechanism 3, the Y-axis moving mechanism 4, and the Z-axis moving mechanism 6 are used to adjust the upper machine head 7 and the lower machine head 8. The ends of the upper beam 21 and the lower beam 23 are connected by servo electric cylinders. A control box 9 is provided on one side of the gantry beam. The X-axis moving mechanism 3, the Y-axis moving mechanism 4, the servo electric cylinder, the Z-axis moving mechanism 6, the upper machine head 7, the lower machine head 8, and the movable air bearing 11 are all connected to the control box 9. Preferably, the control box 9 includes an upper unit and a lower unit; the upper unit is used to realize human-machine interaction and calculation, and the lower unit adopts a Siemens S7-1511T motion control type main controller. The instructions of the main controller are transmitted to the SINAMICS V90 servo driver through communication, and the servo driver then controls each motor to act according to the instructions; the synchronization problem of the upper and lower machine heads 8 is solved by using a motion control type PLC with an electronic cam mechanism, which can perform synchronous tracking control.

[0032] Preferably, a high-precision servo electric cylinder is used as the support between the ends of the upper beam 21 and the lower beam 23. When the upper beam 21 and the lower beam 23 reach the working position, the servo electric cylinder closes to support the upper beam 21, thus maintaining the upper beam 21 with support at both ends and increasing the accuracy and rigidity of the equipment. The servo electric cylinder uses a dual protection device of software limit and limit switch to limit its range of motion to prevent accidents caused by runaway or misoperation. The electric cylinder has a self-locking function.

[0033] Preferably, the gantry beam 2 has a U-shaped structure, including an upper beam 21, a connecting beam 22, and a lower beam 23 connected end to end. The lower beam 23, which is parallel to the upper beam 21, is installed on the base through several Y-axis moving mechanisms 4, enabling the gantry beam 2 to move in the Y-axis direction. The entire base is made of profiles and steel plates welded together to achieve high rigidity and lower the center of gravity of the entire equipment. The gantry beam 2 is made of 6061 aluminum alloy. The gantry beam 2 is provided with side plates, which cover the internal structure and components installed inside, ensuring safety and aesthetics. The side plates of the upper beam 21 and the lower beam 23 are made of 3000mm*1500mm*15mm 6061 aluminum alloy plates by laser cutting to give them good bending resistance. The connecting beam 22 in the middle is made of aluminum alloy plates welded together. The welding adopts a mortise and tenon structure and is performed by plug welding to minimize welding deformation as much as possible.

[0034] Preferably, the Y-axis moving mechanism 4 includes several Y-axis guiding mechanisms 41 and Y-axis driving mechanisms 42. The Y-axis guiding mechanism 41 includes a Y-axis guiding seat 411, on which a Y-axis guiding slide rail 412 is provided. The lower beam 23 is slidably connected to the Y-axis guiding slide rail 412 through a Y-axis guiding slider. The Y-axis driving mechanism 42 includes a Y-axis driving motor 421, a Y-axis driving screw 422, and a Y-axis driving nut seat 423. The Y-axis driving motor 421 is mounted on the base, and the Y-axis driving screw 422 is connected to the output end of the Y-axis driving motor 421. The bottom of the lower beam 23 is connected to the Y-axis driving screw 422 through the Y-axis driving nut seat 423 to drive the gantry beam 2.

[0035] Preferably, the number of Y-direction guiding mechanisms 41 is at least four, and they are evenly distributed between the lower beam 23 and the base; the Y-direction driving mechanism 42 is located in the middle of the lower beam 23; the Y-direction moving mechanism 4 adopts a four-slide rail single screw structure to improve the rigidity and accuracy of support and movement, and avoid jamming; the Y-direction motion system adopts a triple protection device of software limit, mechanical limit and limit switch to limit the Y-direction movement range to prevent accidents caused by runaway or misoperation; the entire Y-direction motion system is covered with a dust cover.

[0036] Preferably, the X-axis upward moving mechanism 31 and the X-axis downward moving mechanism 32 in the X-axis moving mechanism 3 have the same structure. The X-axis downward moving mechanism 32 includes an X-axis downward driving motor 321, an X-axis downward moving slide rail 322, an X-axis downward moving slider, an X-axis downward moving lead screw 323, and an X-axis downward moving nut seat 324. The upper surface of the lower beam 23 is provided with a positioning step. The two parallel X-axis downward moving slide rails 322 are installed to the positioning step through slide rail pressure plates. Specifically, the positioning step can ensure the straightness and parallelism of the two guide rails. The X-axis downward driving motor 321 drives the X-axis downward moving nut seat 324.

[0037] The X-down drive motor 321 is installed on the connecting beam 22. The X-down moving screw 323 is set between two X-down moving slide rails 322 and its end is connected to the output end of the X-down drive motor 321. The X-down moving nut seat 324 is slidably connected to the two X-down moving slide rails 322 through several X-down moving sliders. The X-down moving nut seat 324 is also connected to the X-down moving screw 323.

[0038] Preferably, the X-direction sliding rail 322 is provided with limiting mechanisms at both ends for limiting the X-direction sliding nut seat 324. The X-direction motion system adopts a triple protection device of software limit, mechanical limit and limit switch to limit the X-direction motion range to prevent accidents caused by runaway or misoperation.

[0039] Preferably, the Z-upward moving mechanism 61 and the Z-downward moving mechanism 62 have the same structure; only the Z-upward moving mechanism 61 is described here. The Z-downward moving mechanism 62 includes a Z-downward base plate 621, a Z-downward drive motor 622, a Z-downward moving screw 623, and a Z-downward moving frame 625. The Z-downward moving frame 625 is mounted to the Z-downward moving nut seat 324 via the Z-downward base plate 621. The Z-downward moving frame 625 is equipped with the Z-downward moving screw 623. The Z-downward drive motor 622 is mounted to the Z-downward base plate 621, and its output end is connected to the Z-downward moving screw 623. The Z-downward nut seat 624 cooperates with the Z-downward moving screw 623 to realize the movement of the Z-downward nut seat 624 in the Z direction. The lower machine head 8 is mounted to the Z-downward nut seat 624 via a mounting plate. The upper machine head 7 is mounted to the Z-upward nut seat via a mounting plate. The positions of the upper machine head 7 and the lower machine head 8 correspond to each other. Both the upper machine head 7 and the lower machine head 8 are purchased parts. After the Z-downward nut seat 624 is connected to the Z-downward moving screw 623, a sliding fit is formed between the Z-downward nut seat 624 and the Z-downward moving frame 625 to complete the guiding function; the upper machine head 7 and the lower machine head 8 have a movement range of ±25mm.

[0040] The Z-axis moving mechanism 6 employs a triple protection device of software limit, mechanical limit, and limit switch to limit the Z-axis movement range, preventing accidents caused by runaway or misoperation. During the sewing process, laser positioning enables the sewing head to move up and down synchronously, maintaining a constant distance between the upper and lower sewing heads 8 and the sun blanket. This ensures normal operation even with slight errors in the installation of the sun blanket, while also maintaining natural contact between the lower sewing head 8 and the sun blanket to avoid applying additional compressive stress to the sun blanket.

[0041] During sewing, the X and Y axis deviations of the equipment relative to the sun blanket can be adjusted in the manual operation module. Then, automatic pre-sewing and sewing operations begin from the adjusted position. Different sewing parameters can be set. The needle and thread tension (top thread tension and bottom thread tension) can be adjusted as required. The equipment is movable in three directions (X, Y, and Z axes), with two-dimensional linkage functionality in the X and Z axes. A laser displacement sensor in the Z direction can detect the distance between the upper and lower sewing heads 8 and the blanket surface, ensuring normal operation even with slight errors in the sun blanket installation. It also maintains natural contact between the lower sewing head 8 and the sun blanket to avoid additional compressive stress. The equipment has log saving and retrieval functions, allowing parameters to be saved and retrieved directly for future use without re-entry. The equipment has a single-axis debugging function. During single-axis debugging, if an error alarm occurs, clicking "reset" after clearing the error allows for continued debugging. The equipment also features a virtual image function; during pre-sewing, the laser displacement sensor detects the deviation between the actual and theoretical positions of the blanket surface and displays the deviation as a line graph. In the event of machine failure, the product can activate its protective mechanism within 0.1 seconds, entering a shutdown protection state. Simultaneously, the supports at both ends of the gantry frame reduce mechanical vibration, ensuring high rigidity and precision. The sewing equipment is fully functional, safe, and reliable, successfully solving the sewing problem of flexible sun blankets.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sun blanket sewing machine, characterized in that: The system includes a base, a gantry beam, an X-axis moving mechanism, a Y-axis moving mechanism, a servo electric cylinder, a Z-axis moving mechanism, an upper machine head, a lower machine head, and movable air-bearing supports. The gantry beam is mounted to the upper surface of the base via several Y-axis moving mechanisms, and several movable air-bearing supports are provided on the lower surface of the base. Both the upper and lower beams of the gantry beam are equipped with an X-axis moving mechanism, which is further divided into an X-axis upward moving mechanism and an X-axis downward moving mechanism. The Z-axis moving mechanism includes a Z-axis upward moving mechanism and a Z-axis downward moving mechanism. The Z-axis upward moving mechanism is connected to the X-axis upward moving mechanism, and the Z-axis downward moving mechanism is connected to the X-axis downward moving mechanism. The upper machine head is mounted on the Z-axis upward moving mechanism, and the lower machine head is mounted on the Z-axis downward moving mechanism. The X-axis, Y-axis, and Z-axis moving mechanisms are used to adjust the upper and lower machine heads. The ends of the upper and lower beams are connected via servo electric cylinders. A control box is located on one side of the gantry beam. The gantry beam has an overall U-shaped structure, including an upper beam, a connecting beam, and a lower beam connected end to end. The lower beam, which is parallel to the upper beam, is installed to the base through several Y-axis moving mechanisms, so as to realize the movement of the gantry beam in the Y-axis direction.

2. The sun blanket sewing equipment according to claim 1, characterized in that: The Y-axis moving mechanism includes several Y-axis guiding mechanisms and Y-axis driving mechanisms. The Y-axis guiding mechanism includes a Y-axis guide seat with a Y-axis guide rail. The lower beam is slidably connected to the Y-axis guide rail via a Y-axis guide slider. The Y-axis driving mechanism includes a Y-axis driving motor, a Y-axis driving screw, and a Y-axis driving nut seat. The Y-axis driving motor is mounted on the base, and the Y-axis driving screw is connected to the output end of the Y-axis driving motor. The bottom of the lower beam is connected to the Y-axis driving screw via the Y-axis driving nut seat to drive the gantry beam.

3. The sun blanket sewing equipment according to claim 2, characterized in that: The number of Y-direction guiding mechanisms is at least four, and they are evenly distributed between the lower beam and the base; the Y-direction driving mechanism is located in the middle of the lower beam.

4. The sun blanket sewing equipment according to claim 2, characterized in that: The X-axis upward and downward moving mechanisms in the X-axis moving mechanism have the same structure. The X-axis downward moving mechanism includes an X-axis downward drive motor, an X-axis downward moving slide rail, an X-axis downward moving slider, an X-axis downward moving screw, and an X-axis downward moving nut seat. The upper surface of the lower beam is provided with a positioning step. Two parallel X-axis downward moving slide rails are installed to the positioning step through slide rail pressure plates. The X-axis downward drive motor is installed to the connecting beam. The X-axis downward moving screw is disposed between the two X-axis downward moving slide rails, and its end is connected to the output end of the X-axis downward drive motor. The X-axis downward moving nut seat is slidably connected to the two X-axis downward moving slide rails through several X-axis downward moving sliders. The X-axis downward moving nut seat is also connected to the X-axis downward moving screw.

5. The sun blanket sewing equipment according to claim 4, characterized in that: The X-shaped downward moving slide rail is provided with limiting mechanisms at both ends for limiting the X-shaped downward moving nut seat.

6. The sun blanket sewing equipment according to claim 1, characterized in that: The Z-upward moving mechanism and the Z-downward moving mechanism have the same structure; the Z-downward moving mechanism includes a Z-downward base plate, a Z-downward drive motor, a Z-downward moving screw, a Z-downward nut seat, and a Z-downward moving frame. The Z-downward moving frame is mounted to the Z-downward moving nut seat via the Z-downward base plate; the Z-downward moving frame is equipped with a Z-downward moving screw, and the Z-downward drive motor is mounted to the Z-downward base plate, with its output end connected to the Z-downward moving screw; the Z-downward nut seat cooperates with the Z-downward moving screw to realize the movement of the Z-downward nut seat in the Z direction; the lower machine head is mounted to the Z-downward nut seat via a mounting plate.

7. The sun blanket sewing equipment according to claim 6, characterized in that: The upper head is mounted to the Z-upward nut seat via a mounting plate; and the positions of the upper head and the lower head correspond to each other.

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