A material discharging structure of a printer and a printer

Abstract

The utility model relates to printer technical field discloses a kind of material releasing structure and printer of printer.The material releasing structure of printer, comprising: power mechanism, setting in rack, for driving print material to move;Cloth pressing mechanism, setting in rack, so that print material is attached to the printing platform setting in rack;Flattening mechanism, setting in rack, and setting close to cloth pressing mechanism, for driving print material to open along two sides along the axial direction of flattening mechanism;Wherein, print material sequentially passes power mechanism, flattening mechanism and cloth pressing mechanism.The printer includes rack, printing platform and the material releasing structure of the printer in the first aspect;Printing platform is set in rack, and cloth pressing mechanism is set close to printing platform.The utility model passes through above-mentioned technical scheme, to solve the technical problem that the printer in relevant technology exists and print material surface is prone to wrinkle.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, and in particular to a feeding structure for a printer and a printer. Background Technology

[0002] A printer quickly and accurately converts digital information such as electronic documents and images into visual paper copies. It can output clear black-and-white or color text and charts, as well as reproduce photos and complex images with high quality, meeting a variety of needs from everyday office documents to professional design drafts.

[0003] Printers have a feeding mechanism that supports and stably releases printing material (such as roll paper or film) to ensure flat output. However, in large printers, the surface of the printing material is prone to wrinkles after passing through the feeding mechanism, affecting print quality. Summary of the Invention

[0004] This application discloses a feeding structure for a printer and a printer to solve the technical problem in related technologies where the surface of the printing material is prone to wrinkling.

[0005] To solve the above problems, the present invention adopts the following technical solution: In a first aspect, this application provides a feeding structure for a printer, comprising: The power mechanism, located on the frame, is used to drive the movement of the printing material; The fabric pressing mechanism is located on the frame, which ensures that the printing material is in close contact with the printing platform located on the frame; The flattening mechanism is located on the frame and close to the fabric pressing mechanism. It is used to drive the printing material to spread out along both sides along the axis of the flattening mechanism. The printing material passes through a power mechanism, a flattening mechanism, and a pressing mechanism in sequence.

[0006] In some embodiments, the power mechanism includes a first drive member and two power rollers, which are arranged close together and rotatably mounted on the frame, with a first gap between the two power rollers for the printing material to pass through; the first drive member is connected to the two power rollers to drive the two power rollers to rotate. And / or, the printer's feeding structure also includes a fabric winding roller, which is arranged close to the power mechanism and rotatably mounted on the frame; the printing material passes sequentially through the power mechanism, the fabric winding roller, the flattening mechanism, and the pressing mechanism.

[0007] In some embodiments, the first driving component includes a first motor, an intermediate gear and two driving gears, with driving gears respectively provided at the ends of the two power rollers, and the intermediate gear rotatably mounted on the frame and meshing with the two driving gears; The first motor is mounted on the frame, and its output shaft is connected to one of the drive gears.

[0008] In some solutions, the pressing mechanism includes a pressing roller and a support roller, which are arranged close together and rotatably mounted on the frame, with a second gap formed between the pressing roller and the support roller for the printing material to pass through. Among them, the pressure roller is closer to the printing platform than the support roller.

[0009] In some embodiments, the pressure roller and the support roller can move along the height of the frame; the pressure mechanism also includes at least two second drive members, which are respectively connected to the pressure roller and the support roller to drive the pressure roller and / or the support roller to move. And / or, the power mechanism also includes supports located at the bottom of the two power rollers to limit the collapse of the two power rollers.

[0010] In some designs, the second drive component includes a cylinder and a mounting part. The cylinder is mounted on the frame, and its piston end is connected to the mounting part. The ends of the pressure roller and the support roller are rotatably connected to the mounting part, respectively. And / or, the support includes a housing, a base, and two support portions, the two support portions being disposed on the housing and corresponding to the two power rollers to support the power rollers; the base being disposed at the bottom of the housing to support the housing on the ground.

[0011] In some designs, the frame has two guide grooves along the height direction, and the ends of the pressing roller and the supporting roller are slidably connected to the guide grooves through bearings, respectively. And / or, the support includes two support wheels, which are rotatably connected to the housing and abut against the power roller; And / or, the support also includes a frame, through which the housing is connected to the frame; And / or, the base is threadedly connected to the housing to adjust the position of the base.

[0012] In some designs, the flattening mechanism includes a third drive and a flattening roller. The flattening roller is arranged close to the pressing mechanism and rotatably mounted on the frame. The third drive is connected to the flattening roller to drive the flattening roller to rotate. The flattening roller has a first spiral pattern and a second spiral pattern, which extend from the middle of the flattening roller to both sides, and the spiral directions of the first spiral pattern and the second spiral pattern are opposite.

[0013] In some designs, the third drive unit includes a second motor and a coupling. The second motor is mounted on the frame, and its output shaft is connected to the end of the flattening roller via the coupling.

[0014] Secondly, this application also provides a printer, including a frame, a printing platform, and a feeding structure for the printer in the first aspect; the printing platform is disposed on the frame, and the fabric pressing mechanism is disposed close to the printing platform.

[0015] The technical solution adopted in this utility model can achieve the following beneficial effects: The feeding structure of this printer first provides stable and uniform longitudinal traction tension to the printing material via a power mechanism, establishing a stable material transport foundation. The material then enters a flattening mechanism, which applies radial expansion force to both sides of the material's width, actively eliminating uneven lateral internal stress and smoothing wrinkles. Finally, the flattened material is immediately transported to an adjacent pressing mechanism, where it is instantly pressed and fixed onto the printing platform, completing the precise transition from dynamic transport to static printing. This application, through the above technical solution, solves the wrinkling problem caused by uneven longitudinal tension and lateral internal stress accumulation during the feeding process of wide-width materials, providing a crucial flat material foundation for high-quality printing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0017] Figure 1 This is an isometric view of the feeding structure of the printer disclosed in some embodiments of this application; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 yes Figure 1 Enlarged view of point B in the middle; Figure 4 yes Figure 1 Enlarged view of point C in the middle; Figure 5 These are isometric views of the support members disclosed in some embodiments of this application; Figure 6 This is a partial isometric view of the fabric pressing mechanism disclosed in some embodiments of this application; Figure 7 This is an isometric view of a printer disclosed in some embodiments of this application.

[0018] In the picture: 100 - Printer feeding structure, 110 - Power mechanism, 111 - Power roller, 1111 - First gap, 112 - First driving component, 1121 - Drive gear, 1122 - Intermediate gear, 1123 - First motor, 113 - Support component, 1131 - Housing, 1132 - Base, 1133 - Frame, 1134 - Support wheel, 120 - Fabric pressing mechanism, 121 - Fabric pressing roller, 122 - Fabric supporting roller, 123 - Second driving component, 124 - Second gap, 1231 - Cylinder, 1232 - Mounting part, 130 - Flattening mechanism, 131 - Flattening roller, 1311 - First spiral pattern, 1312 - Second spiral pattern, 132 - Third driving component, 1321 - Second motor, 1322 - Coupling, 140 - Fabric winding roller, 150 - Bearing; 200 - Printer, 210 - Rack, 211 - Guide groove, 220 - Printing platform. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0021] During their research on printers, the inventors discovered that existing large-format printers, due to the excessive size of the printing material, are prone to surface wrinkling after the material passes through the feeding structure. This wrinkling is primarily caused by the difficulty in maintaining a uniform lateral tension distribution on wide materials. Even slight unevenness in the longitudinal tension generated by the feeding structure, or minute parallelism deviations in the guide roller assembly, can create uncontrollable internal stress relaxation or accumulation along the width of the material, ultimately manifesting as lateral or diagonal wrinkles that affect print quality.

[0022] The following is in conjunction with the appendix Figures 1 to 7The paper describes in detail the feeding structure 100 and the printer 200 of the printer provided in this application through specific embodiments and application scenarios.

[0023] Some embodiments of this application disclose a feeding structure 100 for a printer, including a power mechanism 110, a fabric pressing mechanism 120, and a flattening mechanism 130.

[0024] like Figure 1 As shown, the power mechanism 110 is mounted on the frame 210 and is used to drive the movement of the printing material. The power mechanism 110 is integrated into the frame 210 and provides a stable driving reference for the feeding of the printing material, ensuring that the feeding speed is strictly synchronized with the main printing transport speed.

[0025] The direction of movement of the printing material is as follows: Figure 7 As shown in L1.

[0026] like Figure 1 As shown, the fabric pressing mechanism 120 is mounted on the frame 210, ensuring that the printing material adheres tightly to the printing platform 220 mounted on the frame 210. The fabric pressing mechanism 120, mounted on the frame 210 and forcing the printing material to adhere tightly to the printing platform 220, achieves precise physical fixation of the wide plane of the printing material through rigid constraint. This prevents lateral and diagonal wrinkles caused by the printing material being suspended or vibrating, ensuring the flatness of the printed surface and providing an important geometric reference and stable attachment plane for subsequent high-precision printing.

[0027] like Figure 1 As shown, the flattening mechanism 130 is disposed on the frame 210 and close to the fabric pressing mechanism 120, and is used to drive the printing material to spread out to both sides along the axis of the flattening mechanism. The flattening mechanism 130, disposed on the frame 210 and adjacent to the fabric pressing mechanism 120, can actively apply a precise and controllable lateral tension before the printing material enters the printing platform 220. By driving the printing material to spread out to both sides along its axis, it eliminates the existing uneven lateral internal stress and potential shrinkage tendency on the wide printing material, achieving active and positive correction of wrinkles. Furthermore, the layout of the flattening mechanism 130 adjacent to the fabric pressing mechanism 120 ensures that when the material is flattened and in an optimal tension distribution state, it is immediately fixed by the fabric pressing mechanism 120 and enters the printing process, providing an important guarantee of flatness for high-quality printing.

[0028] The printing material passes sequentially through a power mechanism 110, a flattening mechanism 130, and a pressing mechanism 120. The power mechanism 110 first provides a stable driving reference. Subsequently, the flattening mechanism 130, based on this stable driving reference, actively corrects and flattens the internal stress in the width direction of the printing material, eliminating lateral wrinkles. Finally, the fully flattened printing material, in its optimal stress state, is immediately conveyed to the pressing mechanism 120, where its flatness is instantly and rigidly fixed to the printing platform 220. This sequential arrangement achieves step-by-step optimization of the stress state of the printing material, ensuring that the printing material has the highest and most uniform flatness upon entering the printing process, thereby avoiding the formation of wrinkles in the printing material.

[0029] In some embodiments, the printer's feeding structure 100 further includes a fabric winding roller 140, which is arranged near the power mechanism 110 and rotatably mounted on the frame 210. The printing material passes sequentially through the power mechanism 110, the fabric winding roller 140, the flattening mechanism 130, and the pressing mechanism 120. The fabric winding roller 140 is positioned near the power mechanism 110, serving as a transition structure to effectively absorb and homogenize minute speed fluctuations or longitudinal tension peaks directly transmitted from the power mechanism 110, preventing these unstable factors from directly impacting the flattening area.

[0030] In this embodiment, a bearing 150 is provided at the rotatable connection between the fabric winding roller 140 and the frame 210.

[0031] The power mechanism 110 first provides a stable driving reference. Then, the wrapping roller 140 buffers and homogenizes the initial tension of the printing material, improving stability. Subsequently, the flattening mechanism 130, based on this stability, actively corrects and flattens the internal stress in the width direction of the printing material, eliminating lateral wrinkles. Finally, the fully flattened printing material, in its optimal stress state, is immediately conveyed to the pressing mechanism 120, where its flatness is instantly and rigidly fixed to the printing platform 220. This sequential layout achieves step-by-step optimization of the stress state of the printing material, ensuring that the printing material has the highest and most uniform flatness upon entering the printing process, thereby avoiding the formation of wrinkles in the printing material.

[0032] like Figure 3As shown, the power mechanism 110 includes a first drive member 112 and two power rollers 111. The two power rollers 111 are arranged close together and are rotatably mounted on the frame 210. A first gap 1111 is formed between the two power rollers 111 for the printing material to pass through. The first drive member 112 is connected to the two power rollers 111 to drive the two power rollers 111 to rotate. The power mechanism 110 synchronously drives two closely arranged power rollers 111 to rotate via the first drive member 112. The first gap 1111 formed between the two power rollers 111 actively clamps and pulls the printing material. The first gap 1111 formed by the close arrangement of the two power rollers 111 can effectively suppress the deviation of the printing material in the width direction and the local stress concentration. The synchronous drive completely eliminates the wear on the material surface or the internal shear stress caused by the speed difference between the two power rollers 111. Thus, a highly controllable tension starting point is established at the source of material feeding, which lays a crucial foundation for the uniformity of longitudinal tension for the subsequent flattening and pressing processes, and fundamentally prevents the defect of transverse wrinkles induced by longitudinal tension fluctuations.

[0033] In this embodiment, bearings 150 are provided at the rotatable connection between the two power rollers 111 and the frame 210.

[0034] like Figure 5 As shown, the power mechanism 110 also includes a support member 113, which is located at the bottom of the two power rollers 111 to limit the collapse of the two power rollers 111. The support member 113 is located at the bottom of the two power rollers 111, providing support for the slender power rollers 111. It can effectively resist the bending moment generated by material tension, equipment weight and long-term operation, thereby strictly preventing the two power rollers 111 from collapsing relative to each other or undergoing axial deformation. This ensures that the first gap 1111 formed by the two power rollers 111 is dimensionally stable in the entire width direction of the printing material, avoiding problems such as uneven gap and pressure fluctuation caused by deformation of the power rollers 111, thus ensuring the stability of the power.

[0035] like Figure 5 As shown, the support member 113 includes a housing 1131, a base 1132, and two support parts. The two support parts are disposed on the housing 1131 and are corresponding to the two power rollers 111 to support the power rollers 111. The base 1132 is disposed at the bottom of the housing 1131 so that the housing 1131 is supported on the ground. The support member 113 integrates two support parts corresponding to the power rollers 111 through the housing 1131, providing independent rigid support for the two power rollers 111. The entire load is then stably transferred to the ground through the base 1132, effectively resisting the sinking, deformation, or relative displacement of the power rollers 111 caused by the tension of the printing material and their own weight during long-term high-load operation. This ensures that the first gap 1111 formed between the two power rollers 111 always maintains high stability in the entire width direction of the printing material.

[0036] like Figure 5 As shown, the support includes two support wheels 1134, which are rotatably connected to the housing 1131 and abut against the power roller 111. The two support wheels 1134 share and support the power roller 111 through rolling friction, which can effectively limit its collapse deformation while minimizing its resistance to the rotation of the power roller 111 and surface wear.

[0037] like Figure 5 As shown, the support member 113 also includes a frame 1133, and the housing 1131 is connected to the frame 210 through the frame 1133. The housing 1131 is rigidly connected to the frame 210 through the frame 1133, ensuring a stable connection between the entire support member 113 and the main structure of the printer 200, and guaranteeing the stability of the support member 113 during use.

[0038] like Figure 5 As shown, the base 1132 is threadedly connected to the housing 1131 to adjust the position of the base 1132. The threaded connection between the base 1132 and the housing 1131 allows for fine adjustment of the height of the support 113 to accommodate different ground clearances.

[0039] Specifically, the base 1132 has a threaded post, and the housing 1131 has a threaded hole. The position of the base 1132 is adjusted by the engagement of the threaded post and the threaded hole.

[0040] like Figure 3 As shown, the first driving component 112 includes a first motor 1123, an intermediate gear 1122, and two drive gears 1121. Drive gears 1121 are respectively disposed at the ends of the two power rollers 111. The intermediate gear 1122 is rotatably mounted on the frame 210 and meshes with the two drive gears 1121. The first motor 1123 is mounted on the frame 210, and its output shaft is connected to one of the drive gears 1121. The first motor 1123 drives one drive gear 1121, and with the synchronous transmission of the intermediate gear 1122, the two drive gears 1121 respectively drive the two power rollers 111 to rotate in the same direction, collaboratively conveying the printing material in the same direction.

[0041] In this embodiment, the first motor 1123 is mounted on the frame 210 by a fixing bracket, and its output shaft passes through the fixing bracket and is connected to one of the drive gears 1121.

[0042] like Figure 2 and Figure 6As shown, the fabric pressing mechanism 120 includes a fabric pressing roller 121 and a fabric supporting roller 122. The fabric pressing roller 121 and the fabric supporting roller 122 are arranged close together and rotatably mounted on the frame 210. A second gap 124 is formed between the fabric pressing roller 121 and the fabric supporting roller 122 to allow the printing material to pass through. The printing material passes through the second gap 124 formed between the fabric pressing roller 121 and the fabric supporting roller 122. Under the rigid support of the frame 210, the fabric pressing roller 121 and the fabric supporting roller 122 apply a uniform pressing force to the printing material, thereby pressing the material tightly and adhering it to the printing platform 220 below. This eliminates any undulations or suspended sections remaining in the printing material during its journey, forcing the printing material to reach a flat state before entering the printing area, thus providing a stable and ideal printing plane for the print head of the printer 200.

[0043] like Figure 2 As shown, the pressure roller 121 is closer to the printing platform 220 than the support roller 122. Because the pressure roller 121 is closer to the printing platform 220 than the support roller 122, it can preferentially apply a concentrated clamping force to the printing material, so that after it is released from the support roller 122, it can instantly adhere tightly and stabilize to the surface of the printing platform 220. This effectively eliminates the air gap between the material and the platform and suppresses the rebound warping at the end, ensuring the ultimate flatness of the printing area.

[0044] like Figure 2 As shown, the pressure roller 121 and the support roller 122 can move along the height direction of the frame 210; the pressure mechanism 120 also includes at least two second drive members 123, wherein the two second drive members 123 are respectively connected to the pressure roller 121 and the support roller 122 to drive the pressure roller 121 and / or the support roller 122 to move. By driving the pressure roller 121 and the support roller 122 to move through the second drive members 123, the pressure roller 121 and the support roller 122 are allowed to perform opposite coordinated movements through the second drive members 123 during the material feeding stage, thereby forming a spacious and unobstructed entrance between them, which greatly simplifies the threading operation of wide-width printing materials, effectively avoids the possible scratching, bending or initial stress damage that may occur when newly loaded printing materials are forced through narrow gaps, and ensures that the printing materials enter the printing area in a state without initial defects.

[0045] In this preferred embodiment, there are four second driving members 123, which are respectively arranged on opposite sides of the printer 200 in the width direction. Two of the second driving members 123 are connected to the two ends of the pressure roller 121 in the axial direction, and the other two second driving members 123 are connected to the two ends of the support roller 122 in the axial direction, so as to drive the pressure roller 121 and the support roller 122 to move more smoothly.

[0046] like Figure 2As shown, the second driving component 123 includes a cylinder 1231 and a mounting part 1232. The cylinder 1231 is mounted on the frame 210, and its piston end is connected to the mounting part 1232. The ends of the pressure roller 121 and the support roller 122 are respectively rotatably connected to the mounting part 1232. The cylinder 1231 serves as a power source, and its cylinder body is fixed to the frame 210. Through the extension and retraction of the piston end, it directly drives the mounting part 1232 connected to it to produce a precise displacement along the height direction of the frame 210. Since the end bearing 150 seat of the pressure roller 121 (or support roller 122) is mounted on this mounting part 1232, the action of the cylinder 1231 is ultimately converted into the overall lifting or lowering movement of the pressure roller 121 (or support roller 122).

[0047] In this embodiment, bearings 150 are respectively provided at the rotatable connection points between the pressure roller 121 and the support roller 122 and the mounting part 1232.

[0048] like Figure 2 As shown, the frame 210 has two guide grooves 211 along its height direction. The ends of the pressure roller 121 and the support roller 122 are slidably connected to the guide grooves 211 via bearings 150. The two guide grooves 211 along the height direction of the frame 210, together with the bearings 150 at the ends of the pressure roller 121 and the support roller 122, form a sliding pair, providing high-precision rigid guidance and constraint for the vertical lifting and lowering movement of the pressure roller 121 and the support roller 122. This ensures that the pressure roller 121 and the support roller 122 maintain parallelism with the printing platform 220 during the pressing and releasing process, avoiding uneven lateral pressing caused by tilting or deflection. Thus, stable and slip-free precise fixing of the printing material is achieved in the final pressing stage.

[0049] like Figure 1 and Figure 4As shown, the flattening mechanism 130 includes a third driving member 132 and a flattening roller 131. The flattening roller 131 is arranged close to the pressing mechanism 120 and rotatably mounted on the frame 210. The third driving member 132 is connected to the flattening roller 131 to drive the flattening roller 131 to rotate. The flattening roller 131 has a first spiral pattern 1311 and a second spiral pattern 1312. The first spiral pattern 1311 and the second spiral pattern 1312 extend from the middle of the flattening roller 131 to both sides, and the spiral directions of the first spiral pattern 1311 and the second spiral pattern 1312 are opposite. The third driving component 132 drives the flattening roller 131 to rotate at a uniform speed. When the first spiral pattern 1311 and the second spiral pattern 1312 on its surface come into contact with the printing material, the pattern generates a continuous frictional force that expands obliquely to both sides on the printing material. This applies a radial tension that is evenly distributed from the center to both sides in the width direction of the printing material, so as to actively and continuously eliminate the unevenness of the transverse internal stress accumulated by the printing material during the transmission process, and unfold and smooth the wrinkles from the center to both sides. Thus, before the material enters the pressing mechanism 120, it is ensured that it achieves extremely high transverse tension uniformity and surface flatness, fundamentally preventing the generation of transverse and oblique wrinkles.

[0050] Specifically, the rotation direction of the flattening roller 131 is as follows: Figure 7 As shown in O1.

[0051] In this embodiment, a bearing 150 is provided at the rotatable connection between the flattening roller 131 and the frame 210.

[0052] like Figure 4 As shown, the third drive unit 132 includes a second motor 1321 and a coupling 1322. The second motor 1321 is mounted on the frame 210, and its output shaft is connected to the end of the flattening roller 131 via the coupling 1322. The third drive unit 132 rigidly connects the output shaft of the second motor 1321 to the end of the flattening roller 131 via the coupling 1322, efficiently, directly, and synchronously transmitting the rotational power of the motor to the flattening roller 131, driving it to rotate stably at a set speed, and providing a precise power source for continuous axial flattening action.

[0053] Some embodiments of this application also disclose a printer 200, including a frame 210, a platform, and a printer feeding structure 100.

[0054] like Figure 7As shown, the printing platform 220 is mounted on the frame 210, and the fabric pressing mechanism 120 is positioned close to the printing platform 220. The mounting of the printing platform 220 on the frame 210 and its close proximity to the fabric pressing mechanism 120 ensures that the pressing force applied by the fabric pressing mechanism 120 can be directly transmitted to the printing platform 220, thereby instantly and firmly fixing the printing material onto this reference plane. This completely eliminates the possibility of the printing material being suspended or undergoing secondary deformation during printing, minimizing the path from flattening and fixing the printing material to inkjet printing. It also avoids internal stress rebound and wrinkle regeneration caused by the free transport of the printing material, providing a crucial statically stable adhesion interface for high-precision printing.

[0055] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0056] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0057] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A feeding structure for a printer, characterized in that, include: The power mechanism, located on the frame, is used to drive the movement of the printing material; A fabric pressing mechanism is provided on the frame, so that the printing material is in close contact with the printing platform provided on the frame; A flattening mechanism is disposed on the frame and close to the fabric pressing mechanism, for driving the printing material to spread out along both sides along the axial direction of the flattening mechanism; The printing material passes sequentially through the power mechanism, the flattening mechanism, and the pressing mechanism.

2. The feeding structure of a printer according to claim 1, characterized in that, The power mechanism includes a first drive member and two power rollers. The two power rollers are arranged close together and rotatably mounted on the frame. A first gap is formed between the two power rollers to allow printing material to pass through. The first drive member is connected to the two power rollers to drive the two power rollers to rotate. And / or, the feeding structure of the printer further includes a fabric winding roller, which is arranged close to the power mechanism and rotatably mounted on the frame; the printing material passes sequentially through the power mechanism, the fabric winding roller, the flattening mechanism and the pressing mechanism.

3. The feeding structure of a printer according to claim 2, characterized in that, The first driving component includes a first motor, an intermediate gear, and two driving gears. The ends of the two power rollers are respectively provided with the driving gears. The intermediate gear is rotatably mounted on the frame and meshes with the two driving gears. The first motor is mounted on the frame, and its output shaft is connected to one of the drive gears.

4. The feeding structure of a printer according to claim 3, characterized in that, The pressing mechanism includes a pressing roller and a supporting roller, which are arranged close together and rotatably mounted on the frame. A second gap is formed between the pressing roller and the supporting roller to allow printing material to pass through. The pressure roller is closer to the printing platform than the support roller.

5. The feeding structure of a printer according to claim 4, characterized in that, The pressing roller and the supporting roller can move along the height direction of the frame; the pressing mechanism further includes at least two second driving members, wherein the two second driving members are respectively connected to the pressing roller and the supporting roller to drive the pressing roller and / or the supporting roller to move; And / or, the power mechanism further includes a support located at the bottom of the two power rollers to prevent the two power rollers from collapsing.

6. The feeding structure of a printer according to claim 5, characterized in that, The second driving component includes a cylinder and a mounting part. The cylinder is disposed on the frame, and its piston end is connected to the mounting part. The ends of the pressing roller and the supporting roller are respectively rotatably connected to the mounting part. And / or, the support member includes a housing, a base, and two support portions, the two support portions being disposed on the housing and corresponding to the two power rollers to support the power rollers; the base being disposed at the bottom of the housing to support the housing on the ground.

7. The feeding structure of a printer according to claim 6, characterized in that, The frame is provided with two guide grooves along the height direction, and the ends of the pressing roller and the supporting roller are slidably connected to the guide grooves through bearings respectively; And / or, the support portion includes two support wheels, which are rotatably connected to the housing and abut against the power roller; And / or, the support member further includes a frame, through which the housing is connected to the frame; And / or, the base is threadedly connected to the housing to adjust the position of the base.

8. The feeding structure of a printer according to claim 1, characterized in that, The flattening mechanism includes a third driving member and a flattening roller. The flattening roller is arranged close to the pressing mechanism and rotatably mounted on the frame. The third driving member is connected to the flattening roller to drive the flattening roller to rotate. The flattening roller has a first spiral pattern and a second spiral pattern, which extend from the middle of the flattening roller to both sides, and the spiral directions of the first spiral pattern and the second spiral pattern are opposite.

9. The feeding structure of a printer according to claim 8, characterized in that, The third driving component includes a second motor and a coupling. The second motor is mounted on the frame, and its output shaft is connected to the end of the flattening roller via the coupling.

10. A printer, characterized in that, The device includes a frame, a printing platform, and a feeding structure for the printer as described in any one of claims 1-9; the printing platform is disposed on the frame, and the fabric pressing mechanism is disposed close to the printing platform.

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