A turnover actuating mechanism for printing on both sides of cloth

Abstract

The present application relates to a kind of turnover actuators for cloth double-sided printing in cloth printing technical field, comprising: machine frame, the top of the inner wall of one end of the machine frame is provided with turnover assembly, and the bottom of the inner wall of one end of the machine frame is provided with support assembly located below turnover assembly;Driving mechanism, the driving mechanism is arranged on the machine frame, for driving turnover assembly and support assembly work;Lead-out frame, the lead-out frame is fixedly installed between the top one end and the top other end of the machine frame, and lead-out frame is fixedly composed of S type frame and Z type frame.The present application can firmly fix cloth on the surface of turnover roller, avoid the problem of position deviation due to centrifugal force or external interference during turnover, and provide continuous tension for cloth, reduce wrinkle generation, and the unique curve structure of lead-out frame can guide cloth to enter subsequent process in the same horizontal direction after turnover, avoid cloth deviation due to path mutation, lay foundation for accurate printing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cloth printing, and particularly relates to a turnover execution mechanism for double-sided printing of cloth. BACKGROUND

[0002] Cloth printing refers to a processing technology of transferring patterns, colors or textures to the surface of cloth (such as cotton, hemp, silk, chemical fiber, etc.) through a specific process, and is an important link of textile decoration and beautification. It can make the originally single-colored cloth present rich patterns and colors, meet different design requirements and aesthetic preferences, and is widely used in clothing, home textiles (such as curtains, bed sheets), decorative cloth and other fields. In the cloth processing process, double-sided printing is a common process requirement, different patterns can be printed on the front and back of the cloth, which can significantly improve the appearance and added value of the cloth, and one of the key links to realize double-sided printing is to accurately and efficiently turn over the cloth so that the other side of the cloth can be printed by the printing equipment.

[0003] At present, the existing cloth turnover mechanism mainly relies on the motor to drive the turnover roller to drive the cloth to complete the turnover. Specifically, the motor output power drives the turnover roller to rotate, and the cloth rotates with the turnover roller under the action of the friction force between them, thereby realizing 180-degree turnover. However, this traditional turnover method has many defects that are difficult to overcome. First, during the turnover process, the cloth only relies on the friction force between the cloth and the turnover roller to realize the rotation, and there is a lack of effective constraint on the cloth, which makes the cloth prone to position deviation, wrinkles and other problems during the turnover, especially for light, thin and soft cloth. The phenomenon is more obvious. Secondly, and most importantly, the cloth after turnover presents an upper and lower layered state. Because the turning track of the turnover roller is arc-shaped, the movement paths of different parts of the cloth in space are different when the cloth is turned over by 180 degrees with the turnover roller. The parts close to the turnover roller and the parts away from the turnover roller are in different spatial positions at the moment of turnover completion, thereby forming an upper and lower layered state. When the cloth in the upper and lower layered state enters the subsequent printing equipment, it cannot enter in the same horizontal direction, which will cause a series of serious printing defects, such as misalignment of the printing pattern, deviation of the pattern elements that should be aligned, and damage to the overall aesthetics. The pattern may also become blurred, because the uneven cloth causes the distance between the printing head and the cloth to be inconsistent, affecting the adhesion effect of the printing paste. In a more serious case, even the phenomenon of missing printing may occur, i.e. part of the area is not printed with the pattern, resulting in a defective product. These printing defects not only reduce the quality of the product, but also increase the production cost, which is not conducive to the long-term development of the enterprise. Therefore, the problems of the cloth after turnover in the existing cloth turnover mechanism, such as upper and lower layered state and inability to enter the printing equipment horizontally, have become an important bottleneck restricting the improvement of the quality of printed products. Therefore, it is urgent to propose a turnover execution mechanism for double-sided printing of cloth to improve the above problems. SUMMARY

[0004] For the above prior art, the technical problem to be solved by the present application is the problems of the cloth after turnover, such as upper and lower layered state and inability to enter the printing equipment horizontally.

[0005] To solve the above problems, the present application provides a turnover execution mechanism for double-sided printing of cloth, comprising:

[0006] A machine frame, one end of the inner wall of the machine frame is provided with a turnover assembly at the top, and the bottom of the inner wall of one end of the machine frame is provided with a support assembly below the turnover assembly;

[0007] A driving mechanism is arranged on the machine frame for driving the turnover assembly and the support assembly to work;

[0008] The lead-out frame is fixedly installed between one top end and the other top end of the machine frame, and the lead-out frame is fixedly composed of an S-shaped frame and a Z-shaped frame. Limiting plates are fixedly installed on both sides of the bottom inner wall of the lead-out frame.

[0009] A clamping roller assembly, which is inserted into the interior of the lead-out frame;

[0010] A smoothing component, wherein the smoothing component is disposed at the discharge end of the lead-out frame;

[0011] A lifting mechanism is provided on the lead-out frame and is used to drive the clamping roller assembly and the smoothing assembly to move up and down.

[0012] Furthermore, the flipping assembly includes first mounting holes on both sides of the top of one end of the frame, and a flipping roller is rotatably connected to the inner wall of the first mounting hole via a bearing. The circumference of the flipping roller has grooves distributed at equal intervals, and the inner wall of each groove is fixedly installed with nozzles distributed at equal intervals. A suction hole is opened at the middle of one end of the flipping roller, and the inner wall of the suction hole and one end of each nozzle have a connection hole. A vacuum pump and a vacuum tank are fixedly installed on one outer wall of the frame, and a suction tube inserted into the suction hole is fixedly installed at the suction end of the vacuum pump. The outer wall of the suction tube is rotatably connected to the inner wall of the suction hole via a sealed bearing. A valve is fixedly installed at the air inlet end of the vacuum tank, and a connecting pipe is fixedly installed between the valve and the vacuum pump.

[0013] Furthermore, a release seat for separating the suction nozzle from the fabric is fixedly installed on one end of the top inner wall of the machine frame, and one end of the release seat is provided with a rounded corner. The top surface of the release seat, the bottom inner wall of the lead-out frame, and the circumferential surface of the flipping roller are flush.

[0014] Furthermore, the support assembly includes second mounting holes on both sides of the bottom of one end of the frame, and the inner wall of the second mounting hole is rotatably connected to a support roller via a bearing. The fabric runs along the top of the support roller and the bottom of the flip roller. The circumference of the support roller is provided with equally spaced connecting grooves, and the inner wall of each connecting groove is rotatably connected to an inclined tensioning seat via a pin. The tensioning seat faces the direction of fabric running, and a V-shaped elastic metal plate is fixedly installed between the tensioning seat and the connecting groove.

[0015] Furthermore, the drive mechanism includes a driving gear and a driven gear, which are respectively fixedly installed at the other end of the flipping roller and the other end of the support roller, and the driving gear meshes with the driven gear. A drive motor for driving the support roller to rotate is fixedly installed on one side of the outer wall of the machine frame.

[0016] Furthermore, the clamping roller assembly includes two lifting plates, which are respectively inserted into the gaps formed between the inner walls on both sides of the lead-out frame and the outer wall on one side of the limiting plate. Multiple anti-detachment clamping rollers are rotatably connected to the opposite sides of the two lifting plates and are attached to the fabric. The top of each of the two limiting plates is provided with a slot for inserting the anti-detachment clamping rollers. The outline shape of the limiting plate and the outline shape of the lifting plate are respectively adapted to the outline of the inner wall of the lead-out frame and can be positioned along the extension direction of the lead-out frame.

[0017] Furthermore, the lifting mechanism includes a U-shaped support plate fixedly installed on the top of the lead-out frame, and a threaded column is rotatably connected to the middle of the U-shaped support plate. A forward and reverse motor for driving the threaded column to rotate is fixedly installed on the top of the U-shaped support plate. The tops of the two lifting plates are fixedly installed with the same lifting frame, and the lifting frame is provided with threaded holes that are screwed to the outer wall of the threaded column. The lifting frame is also provided with multiple guide holes, and a guide column passing through the guide hole is fixed on the top inner wall of the U-shaped support plate.

[0018] Furthermore, the smoothing component includes an installation groove at the bottom of the material outlet end of the lead-out frame, and an installation plate is fixedly installed on the inner wall of both installation grooves. Guide grooves are provided on both installation plates, and lifting frames are slidably arranged on the inner wall of both guide grooves. One end of the two lifting frames is fixedly installed with the same traction frame to the top of one of the lifting plates. Installation sleeves are also slidably arranged on the inner wall of the two guide grooves, and the same tensioning roller is rotatably connected to the inner wall of the installation sleeves through bearings. Tensioning components are provided on the top of the installation sleeves and inside the lifting frames. Smoothing rollers are rotatably connected to the bottom of the two installation plates through bearings, and the tensioning rollers are located above the smoothing rollers. Guide rollers are rotatably connected to the top ends of one side of the two installation plates, and the guide rollers are located above the tensioning rollers. The fabric runs along the surface of the guide rollers, the bottom of the tensioning rollers, and the top of the smoothing rollers.

[0019] Furthermore, the tensioning assembly includes an insertion port at the bottom of the lifting frame, and a movable seat that passes through the insertion port and is inserted into the lifting frame is fixed to the top of the mounting block. The movable seat has a T-shaped cross-section, and a spring is fixedly installed on the top of the movable seat and the top inner wall of the lifting frame.

[0020] Furthermore, a plurality of feed rollers are rotatably connected to the inner wall of the machine frame near the flipping component, and the fabric alternately passes around the feed rollers to form an S-shaped path for conveying. A support frame is fixedly installed at the bottom of the machine frame.

[0021] In summary, by adopting the above structure, the present invention has the following advantages compared with the prior art:

[0022] 1. In this invention, within the flipping assembly, suction nozzles are evenly distributed in the grooves around the circumference of the flipping roller. A negative pressure system consisting of a vacuum pump, a vacuum tank, connecting holes, and suction holes generates a stable suction force when the fabric contacts the flipping roller. This suction force replaces the traditional driving method that relies solely on friction, firmly fixing the fabric to the surface of the flipping roller. Even for thin and soft fabrics (such as silk and chiffon), it avoids positional shifts caused by centrifugal force or external interference during the flipping process. Simultaneously, within the connecting groove around the circumference of the support roller, a tensioning seat is connected to the connecting groove via a V-shaped elastic metal plate. The tensioning seat is inclined towards the direction of fabric movement. When the fabric moves along the top of the support roller and the bottom of the flipping roller, the tensioning seat remains in contact with the fabric surface under the elastic force of the V-shaped elastic metal plate, providing continuous tension to the fabric. This effectively counteracts any loosening that may occur during the flipping process, reducing wrinkles, and is particularly suitable for thin and soft fabrics.

[0023] 2. In this invention, one end of the release seat on the inner wall of the top of the frame is rounded, and its top surface is flush with the circumferential surface of the flip roller and the inner wall of the bottom of the lead-out frame. When the fabric completes a 180-degree flip with the flip roller, the release seat can guide the fabric to smoothly detach from the suction nozzle, avoiding fabric wrinkles caused by pulling during detachment. At the same time, it ensures that the fabric directly enters the horizontal conveying path, fundamentally solving the problem of fabric layering caused by the arc trajectory of traditional flipping mechanisms. Meanwhile, the lead-out frame is composed of an S-shaped frame and a Z-shaped frame. Its unique curved structure can guide the fabric to enter the subsequent process in the same horizontal direction after flipping, avoiding fabric deviation caused by sudden changes in the path, laying the foundation for accurate printing.

[0024] 3. In this invention, the lifting mechanism drives the threaded column to rotate via a forward and reverse motor, causing the lifting frame to rise and fall along the guide column, which in turn drives the clamping roller assembly and the smoothing assembly to rise and fall synchronously. This design allows for flexible adjustment of the distance between the anti-detachment clamping roller and the bottom of the lead-out frame according to the thickness of the fabric, ensuring effective constraint on fabrics of different thicknesses and enhancing the versatility of the equipment. Moreover, when the fabric is conveyed within the lead-out frame, the setting of the two limit plates provides precise guidance for the movement of the fabric, ensuring the stability of the fabric's movement trajectory. At the same time, the anti-detachment clamping roller can prevent the fabric from tilting upwards or shifting left and right, which can significantly improve the conveying stability, especially when handling easily slippery chemical fiber fabrics.

[0025] 4. In this invention, the tension roller is slidably connected to the guide groove via an mounting sleeve, and the movable seat at the top of the mounting sleeve is connected to the spring inside the lifting frame. When the lifting mechanism descends, the traction frame moves down synchronously. The elastic force of the spring enables the tension roller to generate a continuous elastic tension force on the fabric. When the fabric experiences tension changes due to fluctuations in the conveying speed, the tension roller can adaptively adjust its position through the extension and retraction of the spring to always maintain the tension of the fabric and avoid loosening and wrinkles. At the same time, the smoothing roller and the tension roller work together to form an up-and-down squeezing of the fabric. After the fabric passes through the tension roller, the smoothing roller can further flatten the fine wrinkles on the surface of the fabric, ensuring that the fabric is in a completely flat state when it enters the printing equipment, thus forming a secondary smoothing effect. This can effectively avoid defects such as misalignment, partial blurring, or missing printing caused by uneven fabric. Attached Figure Description

[0026] Figure 1 This is a perspective view of a flipping actuator for double-sided printing on fabric according to the present invention;

[0027] Figure 2 This is a top view of a flipping actuator for double-sided printing on fabric according to the present invention;

[0028] Figure 3 This is a front cross-sectional view of a flipping actuator for double-sided printing on fabric according to the present invention;

[0029] Figure 4 This is a schematic diagram of the frame and release seat structure of a flipping actuator for double-sided printing of fabric according to the present invention.

[0030] Figure 5 This is a schematic diagram of the flipping roller and drive gear structure of a flipping actuator for double-sided printing on fabric according to the present invention.

[0031] Figure 6 This is a schematic diagram of the flipping component structure of a flipping actuator for double-sided printing on fabric according to the present invention.

[0032] Figure 7 This is a schematic diagram of the support component structure of a flipping actuator for double-sided printing on fabric according to the present invention.

[0033] Figure 8 This is a schematic diagram of the lead-out frame structure of a flipping actuator for double-sided printing on fabric according to the present invention;

[0034] Figure 9 This is a schematic diagram of the lead-out frame and limiting plate structure of a flipping actuator for double-sided printing of fabric according to the present invention.

[0035] Figure 10 This is a schematic diagram of the roller assembly and smoothing assembly of a flipping actuator for double-sided printing of fabric according to the present invention.

[0036] Figure 11 This is a perspective view of a smoothing component of a flipping actuator for double-sided printing on fabric according to the present invention.

[0037] Figure 12 This is a schematic diagram of the spring and movable seat structure of a flipping actuator for double-sided printing on fabric according to the present invention;

[0038] Figure 13 This is a schematic diagram of the lifting mechanism structure of a flipping actuator for double-sided printing of fabric according to the present invention.

[0039] Explanation of the labels in the diagram:

[0040] 1. Support frame; 2. Machine frame; 3. Drive mechanism; 31. Drive motor; 32. Drive gear; 33. Driven gear; 4. Tilting assembly; 41. Tilting roller; 42. Suction nozzle; 43. Vacuum pump; 44. Suction pipe; 45. Suction hole; 46. Connecting hole; 47. Groove; 48. Vacuum tank; 49. Connecting pipe; 410. Release seat; 5. Lead-out frame; 51. S-shaped frame; 52. Z-shaped frame; 6. Limiting plate; 7. Clamping roller assembly; 71. Lifting plate; 72. Anti-detachment clamping roller; 8. Lifting mechanism; 81. U 82. Support plate; 83. Forward and reverse motor; 84. Lifting frame; 85. Threaded column; 86. Guide column; 97. Smoothing assembly; 98. Mounting slot; 99. Mounting plate; 90. Traction frame; 91. Smoothing roller; 92. Tensioning roller; 93. Guide roller; 94. Guide groove; 95. Lifting frame; 96. Spring; 97. Movable seat; 98. Mounting sleeve block; 10. Feed roller; 11. Support assembly; 111. Support roller; 112. Connecting groove; 113. V-shaped elastic metal plate; 114. Tensioning seat; 12. Slot. Detailed Implementation

[0041] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0042] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] Please see Figures 1-13 The present invention provides a flipping actuator for double-sided printing on fabric, comprising:

[0045] The frame 2 has a tilting assembly 4 on the top of the inner wall of one end. The tilting assembly 4 includes first mounting holes on both sides of the top of one end of the frame 2. The inner wall of the first mounting holes is rotatably connected to a tilting roller 41 via bearings. The circumference of the tilting roller 41 has equally spaced grooves 47, and the inner wall of each groove 47 is fixedly fitted with equally spaced suction nozzles 42. A suction hole 45 is opened at the middle of one end of the tilting roller 41, and the inner wall of the suction hole 45 and one end of each suction nozzle 42 are connected by a connection hole 46. A vacuum pump 43 and a vacuum tank 48 are fixedly installed on the outer wall of one side of the frame 2. The suction end of the vacuum pump 43 is fixedly fitted with a suction tube 44 inserted into the suction hole 45. The inner wall of the vacuum tank 48 is rotatably connected to the suction hole 45 via a sealed bearing. A valve is fixedly installed at the air inlet end of the vacuum tank 48, and a connecting pipe 49 is fixedly installed between the valve and the vacuum pump 43. A release seat 410 for separating the suction nozzle 42 from the fabric is fixedly installed at one end of the top inner wall of the frame 2, and one end of the release seat 410 is provided with a rounded corner. The top surface of the release seat 410, the bottom inner wall of the lead-out frame 5, and the circumferential surface of the flipping roller 41 are flush. A support assembly 11 located below the flipping assembly 4 is provided at the bottom of the inner wall of one end of the frame 2. The support assembly 11 includes second mounting holes opened on both sides of the bottom of one end of the frame 2, and the inner wall of the second mounting holes is rotatably connected to the support roller 111 via a bearing. The fabric moves along the support roller 111. The top of roller 111 and the bottom of the turning roller 41 operate. Equally spaced connecting grooves 112 are provided around the circumference of the support roller 111. The inner walls of each connecting groove 112 are rotatably connected to inclined tension seats 114 via pins. The tension seats 114 face the direction of fabric movement. A V-shaped elastic metal plate 113 is fixedly installed between the tension seats 114 and the connecting grooves 112. Both the tension seats 114 and the suction nozzle 42 are made of soft, wear-resistant silicone. A negative pressure system consisting of a vacuum pump 43, a vacuum tank 48, a connecting hole 46, a suction hole 45, and a suction nozzle 42 generates a stable suction force when the fabric contacts the turning roller 41. This suction force replaces the traditional method that relies solely on friction. The rotating mechanism can firmly fix the fabric to the surface of the flipping roller 41, avoiding the problem of fabric position displacement due to centrifugal force or external force interference during the flipping process. At the same time, the tension seat 114 and V-shaped elastic metal plate 113 in the support assembly 11 provide continuous tension to the fabric, effectively counteracting the loosening that may occur during the flipping process and reducing wrinkles. Moreover, after the fabric completes a 180-degree flip with the flipping roller 41, the release seat 410 can guide the fabric to smoothly detach from the suction nozzle 42, avoiding fabric wrinkles caused by pulling during detachment, while ensuring that the fabric directly enters the horizontal conveying path, fundamentally solving the problem of fabric layering caused by the arc trajectory of traditional flipping mechanisms.

[0046] Drive mechanism 3 is mounted on frame 2 and is used to drive the tilting assembly 4 and support assembly 11 to work.

[0047] The lead-out frame 5 is fixedly installed between one top end and the other top end of the machine frame 2. The lead-out frame 5 is composed of an S-shaped frame 51 and a Z-shaped frame 52. Limiting plates 6 are fixedly installed on both sides of the bottom inner wall of the lead-out frame 5. Since the lead-out frame 5 is composed of an S-shaped frame 51 and a Z-shaped frame 52, its unique curved structure can guide the fabric to enter the subsequent process in the same horizontal direction after flipping, avoiding fabric deviation due to sudden changes in the path, thus laying the foundation for accurate printing.

[0048] The clamping roller assembly 7 is inserted into the inside of the lead-out frame 5;

[0049] Smoothing component 9 is located at the discharge end of lead-out frame 5;

[0050] The lifting mechanism 8 is mounted on the lead-out frame 5 and is used to drive the clamping roller assembly 7 and the smoothing assembly 9 to move up and down.

[0051] In this invention, the drive mechanism 3 includes a drive gear 32 and a driven gear 33, which are respectively fixedly installed at the other end of the flipping roller 41 and the other end of the support roller 111. The drive gear 32 and the driven gear 33 mesh with each other. A drive motor 31 for driving the support roller 111 to rotate is fixedly installed on one side of the outer wall of the frame 2. The drive motor 31 drives the support roller 111 to rotate. With the meshing transmission of the drive gear 32 and the driven gear 33, the flipping roller 41 and the support roller 111 can be operated synchronously.

[0052] In this invention, the clamping roller assembly 7 includes two lifting plates 71, which are respectively inserted into the gaps formed between the inner walls on both sides of the lead-out frame 5 and the outer wall on one side of the limiting plate 6. The two lifting plates 71 are rotatably connected to the opposite sides with a plurality of anti-detachment clamping rollers 72 that are attached to the fabric. The top of each of the two limiting plates 6 is provided with a slot 12 for the anti-detachment clamping rollers 72 to be inserted. The outline shape of the limiting plate 6 and the outline shape of the lifting plate 71 are respectively adapted to the outline of the inner wall of the lead-out frame 5 and can be positioned along the extension direction of the lead-out frame 5. When the fabric is conveyed in the lead-out frame 5, the two limiting plates 6 can provide precise guidance for the movement of the fabric, ensuring the stability of the fabric's movement trajectory. In addition, the anti-detachment clamping rollers 72 can prevent the fabric from tilting upward or shifting left and right. Especially when handling easily slippery chemical fiber fabrics, they can significantly improve the conveying stability.

[0053] In this invention, the lifting mechanism 8 includes a U-shaped support plate 81 fixedly installed on the top of the lead-out frame 5, and a threaded column 84 rotatably connected to the middle of the U-shaped support plate 81. A forward and reverse motor 82 for driving the threaded column 84 to rotate is fixedly installed on the top of the U-shaped support plate 81. The top of the two lifting plates 71 is fixedly installed with the same lifting frame 83, and the lifting frame 83 has a threaded hole that is screwed to the outer wall of the threaded column 84. The lifting frame 83 also has multiple guide holes. A guide column 85 passing through the guide hole is fixed to the inner wall of the top of the U-shaped support plate 81. The forward and reverse motor 82 in the lifting mechanism 8 drives the threaded column 84 to rotate, so that the lifting frame 83 rises and falls along the guide column 85, thereby driving the clamping roller assembly 7 and the smoothing assembly 9 to rise and fall synchronously. The distance between the anti-detachment clamping roller 72 and the bottom of the lead-out frame 5 can be flexibly adjusted to ensure effective constraint on fabrics of different thicknesses, enhance the versatility of the equipment, and also flexibly adjust the position of the smoothing assembly 9 to facilitate full smoothing of the fabric.

[0054] In this invention, the smoothing component 9 includes an installation groove 91 at the bottom of the discharge end of the lead-out frame 5, and an installation plate 92 is fixedly installed on the inner wall of each of the two installation grooves 91. Each of the two installation plates 92 has a guide groove 97, and a lifting frame 98 is slidably mounted on the inner wall of each of the two guide grooves 97. One end of each of the two lifting frames 98 is fixedly mounted with the same traction frame 93 to the top of one of the lifting plates 71. An installation sleeve 911 is also slidably mounted on the inner wall of each of the two guide grooves 97, and the same tensioning roller 95 is rotatably connected to the inner wall of the installation sleeve 911 via a bearing. A tensioning component is provided at the top of the installation sleeve 911 and inside the lifting frame 98. The tensioning component includes an insertion port at the bottom of the lifting frame 98, and a movable seat 910 is fixedly mounted on the top of the installation sleeve 911, passing through the insertion port and inserted into the lifting frame 98. The movable seat 910 has a T-shaped cross-section, and a spring 99 is fixedly mounted on the top of the movable seat 910 and the top inner wall of the lifting frame 98. The bottoms of the two installation plates 92 are connected via... A smoothing roller 94 is rotatably connected to a bearing, and a tensioning roller 95 is located above the smoothing roller 94. Guide rollers 96 are rotatably connected to both ends of the top side of each of the two mounting plates 92, and the guide rollers 96 are located above the tensioning roller 95. The fabric runs along the surface of the guide roller 96, the bottom of the tensioning roller 95, and the top of the smoothing roller 94. When the lifting mechanism 8 descends, the traction frame 93 moves down synchronously, causing the tensioning roller 95 to also move down. The elastic force of the spring 99 within the tensioning assembly enables the tensioning roller 95 to exert force on the fabric. The tensioning roller 95 provides continuous elastic tension. When the fabric tension changes due to fluctuations in conveying speed, the tensioning roller 95 can adaptively adjust its position through the extension and retraction of the spring 99 to always maintain the tension of the fabric and avoid loosening and wrinkles. Moreover, when the tensioning component is working, the smoothing roller 94 and the tensioning roller 95 work together to form an up-and-down squeezing of the fabric. After the fabric passes through the tensioning roller 95, the smoothing roller 94 can further flatten the fine wrinkles on the surface of the fabric, ensuring that the fabric is in a completely flat state when it enters the printing equipment.

[0055] In this invention, a plurality of feed rollers 10, arranged alternately in an upper and lower manner, are rotatably connected to the inner wall of the frame 2 near the flipping component 4. The fabric alternately passes around the upper and lower feed rollers 10 to form an S-shaped path for conveying. A support frame 1 is fixedly installed at the bottom of the frame 2. The feed rollers 10 make the fabric form an S-shaped conveying path, thereby increasing the tension of the fabric during the conveying process and preventing the fabric from loosening due to its own weight or conveying inertia. Especially during long-distance conveying, it can ensure that the fabric is always in a taut state, providing a stable material supply for subsequent flipping and printing processes.

[0056] In summary, the working principle of this invention is as follows:

[0057] In the initial stage of fabric conveying, the fabric first enters between multiple feed rollers 10 set on one side of the frame 2. These feed rollers 10 are distributed alternately up and down. When the fabric is conveyed, it will alternately pass around the upper and lower feed rollers 10, thus forming an S-shaped conveying path.

[0058] After being conveyed by the feed roller 10, the fabric enters the machine frame 2. At this time, the fabric runs along the top of the support roller 111 in the support assembly 11 and the bottom of the flip roller 41 in the flip assembly 4. Then, the fabric enters the lead-out frame 5 along the surface of the flip roller 41, and passes through the lead-out frame 5, the guide roller 96, the tension roller 95 and the smoothing roller 94 in the smoothing assembly 9, and is led out from one end of the lead-out frame 5. Since the lead-out frame 5 is fixedly composed of an S-shaped frame 51 and a Z-shaped frame 52, its unique curved structure can guide the fabric to enter the subsequent process in the same horizontal direction after flipping, avoiding fabric deviation due to sudden changes in the path, laying the foundation for accurate printing. At this time, the forward and reverse motor 82 in the control lifting mechanism 8 works, driving the threaded column 84 to rotate, driving the lifting frame 83 to rise and fall along the guide column 85, and then driving the clamping roller assembly 7 and the smoothing assembly 9 to rise and fall, so that the anti-detachment clamping roller 72 in the clamping roller assembly 7 is attached to the fabric. The slots 12 on the top of the two limiting plates 6 effectively constrain the fabric vertically, preventing it from shifting or lifting during transport. Simultaneously, the traction frame 93 inside the smoothing component 9 moves downward, causing the tension roller 95 to also move downward. The elastic force of the spring 99 inside the tensioning component enables the tension roller 95 to generate a continuous elastic tension force on the fabric. When the fabric experiences tension changes due to fluctuations in transport speed, the tension roller 95 can adaptively adjust its position through the extension and retraction of the spring 99, always maintaining the fabric in a taut state and preventing loosening and wrinkles. Moreover, when the tensioning component is working, the smoothing roller 94 and the tension roller 95 work together to create vertical compression on the fabric. After the fabric passes through the tension roller 95, the smoothing roller 94 can further flatten the fine wrinkles on the fabric surface, ensuring that the fabric is completely flat when it enters the printing equipment. After being processed by the smoothing component 9, the flat fabric is transported to the subsequent printing equipment.

[0059] Furthermore, during the conveying process, the drive motor 31 inside the drive mechanism 3 is activated, causing the support roller 111 to start rotating. Since the driven gear 33 fixedly installed at the other end of the support roller 111 meshes with the driving gear 32 fixedly installed at the other end of the tilting roller 41, the rotation of the support roller 111 will drive the tilting roller 41 to rotate synchronously through gear transmission. During the rotation of the tilting roller 41, the vacuum pump 43 fixedly installed on the outer wall of one side of the frame 2 starts to work. The vacuum pump 43 evacuates air through the suction pipe 44 to the suction hole 45 opened at the middle of one end of the tilting roller 41. The suction hole 45 is connected to the suction nozzle 42 on the inner wall of the groove 47 on the circumference of the tilting roller 41 through the connecting hole 46, thus enabling the suction nozzle 42 to... A negative pressure is generated. When the fabric comes into contact with the flipping roller 41, the negative pressure generated by the suction nozzle 42 will firmly adsorb the fabric in the groove 47. As the flipping roller 41 continues to rotate, the fabric is driven to complete a 180-degree flipping action, realizing the double-sided conversion of the fabric. At the same time, the vacuum tank 48 on one side of the frame 2 is connected to the discharge end of the vacuum pump 43 through the connecting pipe 49. The vacuum tank 48 can store a certain amount of negative pressure gas, stabilize the negative pressure of the suction nozzle 42, and reduce the frequent start and stop of the vacuum pump 43. When the flipped fabric rotates with the flipping roller 41 to the release seat 410, it will smoothly detach from the suction nozzle 42 and smoothly enter the guide frame 5, ensuring a smooth transition of the fabric from the flipped state to the horizontal conveying state.

[0060] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this invention.

Claims

1. A flipping actuator for double-sided printing on fabric, characterized in that, include: A frame (2) has a flipping assembly (4) on the top of one end of its inner wall and a support assembly (11) located below the flipping assembly (4) on the bottom of one end of its inner wall. The flipping assembly (4) includes first mounting holes on both sides of the top of one end of the frame (2), and the inner wall of the first mounting holes is rotatably connected to a flipping roller (41) via a bearing. The support assembly (11) includes second mounting holes on both sides of the bottom of one end of the frame (2), and the inner wall of the second mounting holes is rotatably connected to a flipping roller (41) via a bearing. A bearing is rotatably connected to a support roller (111). The fabric runs along the top of the support roller (111) and the bottom of the flip roller (41). The support roller (111) has equidistant connecting grooves (112) on its circumference. The inner wall of each connecting groove (112) is rotatably connected to an inclined tensioning seat (114) by a pin. The tensioning seat (114) faces the direction of the fabric running. A V-shaped elastic metal plate (113) is fixedly installed between the tensioning seat (114) and the connecting groove (112). The drive mechanism (3) is mounted on the frame (2) and is used to drive the flipping assembly (4) and the support assembly (11) to work. The lead-out frame (5) is fixedly installed between one top end and the other top end of the frame (2), and the lead-out frame (5) is fixedly composed of an S-shaped frame (51) and a Z-shaped frame (52). Limiting plates (6) are fixedly installed on both sides of the bottom inner wall of the lead-out frame (5). A clamping roller assembly (7) is inserted into the interior of the lead-out frame (5); Smoothing component (9), the smoothing component (9) is disposed at the discharge end of the lead-out frame (5); The lifting mechanism (8) is set on the lead-out frame (5) and is used to drive the roller assembly (7) and the smoothing assembly (9) to lift.

2. The flipping actuator for double-sided printing on fabric according to claim 1, characterized in that, The circumference of the tumbling roller (41) is provided with grooves (47) distributed at equal intervals, and the inner wall of each groove (47) is fixedly installed with suction nozzles (42) distributed at equal intervals. A suction hole (45) is provided at the middle of one end of the tumbling roller (41), and the inner wall of the suction hole (45) and one end of the suction nozzle (42) are both provided with connecting holes (46). A vacuum pump (43) and a vacuum tank (48) are fixedly installed on one side of the outer wall of the frame (2), and a suction pipe (44) inserted into the suction hole (45) is fixedly installed at the suction end of the vacuum pump (43). The outer wall of the suction pipe (44) and the inner wall of the suction hole (45) are rotatably connected by a sealed bearing. A valve is fixedly installed at the air inlet end of the vacuum tank (48), and a connecting pipe (49) is fixedly installed between the valve and the vacuum pump (43).

3. The flipping actuator for double-sided printing on fabric according to claim 2, characterized in that, The top inner wall of the frame (2) is fixedly installed with a release seat (410) for separating the suction nozzle (42) from the fabric, and one end of the release seat (410) is provided with a rounded corner. The top surface of the release seat (410), the bottom inner wall of the lead-out frame (5) and the circumferential surface of the flipping roller (41) are flush.

4. The flipping actuator for double-sided printing on fabric according to claim 3, characterized in that, The drive mechanism (3) includes a drive gear (32) and a driven gear (33) respectively fixedly installed at the other end of the flipping roller (41) and the other end of the support roller (111), and the drive gear (32) meshes with the driven gear (33). A drive motor (31) for driving the support roller (111) to rotate is fixedly installed on one side of the outer wall of the frame (2).

5. The flipping actuator for double-sided printing on fabric according to claim 4, characterized in that, The roller assembly (7) includes two lifting plates (71), and the two lifting plates (71) are respectively inserted into the gap formed between the inner walls on both sides of the lead-out frame (5) and the outer wall on one side of the limiting plate (6). The two lifting plates (71) are rotatably connected to a plurality of anti-detachment rollers (72) that are attached to the fabric. The top of the two limiting plates (6) is provided with a slot (12) for the anti-detachment rollers (72) to be inserted. The outline shape of the limiting plate (6) and the outline shape of the lifting plate (71) are respectively adapted to the outline of the inner wall of the lead-out frame (5) and can be positioned along the extension direction of the lead-out frame (5).

6. The flipping actuator for double-sided printing on fabric according to claim 5, characterized in that, The lifting mechanism (8) includes a U-shaped support plate (81) fixedly installed on the top of the lead-out frame (5), and a threaded column (84) is rotatably connected in the middle of the U-shaped support plate (81). A forward and reverse motor (82) for driving the threaded column (84) to rotate is fixedly installed on the top of the U-shaped support plate (81). The top of the two lifting plates (71) is fixedly installed with the same lifting frame (83), and the lifting frame (83) is provided with a threaded hole that is screwed to the outer wall of the threaded column (84). The lifting frame (83) is also provided with multiple guide holes. A guide column (85) passing through the guide hole is fixed on the top inner wall of the U-shaped support plate (81).

7. The flipping actuator for double-sided printing on fabric according to claim 6, characterized in that, The smoothing component (9) includes a mounting groove (91) at the bottom of the discharge end of the lead-out frame (5), and mounting plates (92) are fixedly installed on the inner walls of both mounting grooves (91). Guide grooves (97) are provided on both mounting plates (92), and lifting frames (98) are slidably provided on the inner walls of both guide grooves (97). One end of the two lifting frames (98) is fixedly installed with the same traction frame (93) at the top of one of the lifting plates (71). Mounting sleeves (911) are also slidably provided on the inner walls of the two guide grooves (97). The inner wall of the device is rotatably connected to the same tension roller (95) via bearings. The top of the mounting block (911) and the inside of the lifting frame (98) are provided with tensioning components. The bottom of the two mounting plates (92) are rotatably connected to smoothing rollers (94) via bearings, and the tension roller (95) is located above the smoothing roller (94). The top ends of one side of the two mounting plates (92) are rotatably connected to guide rollers (96), and the guide rollers (96) are located above the tension roller (95). The fabric runs along the surface of the guide roller (96), the bottom of the tension roller (95), and the top of the smoothing roller (94).

8. The flipping actuator for double-sided printing on fabric according to claim 7, characterized in that, The tensioning assembly includes an opening at the bottom of the lifting frame (98), and a movable seat (910) that passes through the opening and is inserted into the lifting frame (98) is fixed on the top of the mounting block (911). The movable seat (910) has a T-shaped cross section, and a spring (99) is fixedly installed on the top of the movable seat (910) and the top inner wall of the lifting frame (98).

9. A flipping actuator for double-sided printing on fabric according to claim 8, characterized in that, The inner wall of the frame (2) near the flipping assembly (4) is rotatably connected to a plurality of feed rollers (10) that are alternately distributed up and down. The fabric alternately passes around the feed rollers (10) to form an S-shaped path for conveying. A support frame (1) is fixedly installed at the bottom of the frame (2).

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