Self-adaptive tensioning mechanism, decorative paper conveying device and decorative paper printing and conveying process

Abstract

The invention relates to the technical field of decorative paper conveying devices, in particular to a self-adaptive tensioning mechanism, a decorative paper conveying device and a decorative paper printing and conveying process, and mainly relates to the self-adaptive tensioning mechanism which comprises a conveying frame, and an abutting roller used for abutting against decorative paper is rotationally connected to the conveying frame; a floating layer is arranged on the outer circle side of the abutting roller and comprises an air cushion bag connected to the outer side of the abutting roller and an external expansion supporting elastic piece arranged on the inner side of the air cushion bag, and the external expansion supporting elastic piece is used for keeping the outer side of the air cushion bag to be in an arc shape so that the air cushion bag can be attached to the surface of the decorative paper. The decorative paper conveying device has the following effects that the floating layer is arranged on the upper side of the abutting roller, after being pressed on decorative paper, the floating layer can correspondingly form a concave-convex outer wall along with deformation, the outer side can be well kept in an arc shape through the internal externally-expanded supporting elastic piece, in the decorative paper conveying process, the shape of the outer side is changed in a self-adaptive mode, and the service life of the decorative paper is prolonged. The decorative paper corresponds to the decorative paper in different length directions.

Description

Technical Field

[0001] The technical field of the decorative paper conveying device of the present application particularly relates to an adaptive tensioning mechanism, a decorative paper conveying device and a decorative paper printing and conveying process. Background Art

[0002] Decorative paper is an essential raw material in many building materials products, such as low-pressure boards and high-pressure boards used in furniture and cabinets, as well as fireproof boards and flooring.

[0003] In the product structure, decorative paper primarily provides decorative patterns and covers the bottom layer of glue to prevent it from seeping through. The decorative paper on the door panel currently has many formed patterns or textures. After the textures are formed, the decorative paper needs to be cut to the corresponding size.

[0004] For example, the invention patent with publication number CN117260854A discloses a printing and cutting device for decorative paper production, including a cutting frame, a blanking plate is provided on one side of the cutting frame, a material receiving structure is provided on the blanking plate, a lifting structure is provided at the bottom end of the blanking plate, an inclined structure is provided on the lifting structure, a pressing structure is provided on the material receiving structure, a fixing structure is provided on the material receiving structure, and a rotating structure is provided on the material receiving structure.

[0005] The corresponding clamping structure is disclosed, as the decorative paper needs to be properly tensioned during the cutting process to facilitate cutting. However, when cutting thicker decorative paper, the clamping structure can only be applied to the raised areas of the paper, which can cause slippage and prevent the paper from being clamped. This also fails to provide effective friction to transport the paper, affecting the cutting effect. Summary of the Invention

[0006] In order to better press the decorative paper, the present application provides an adaptive tensioning mechanism, a decorative paper conveying device, and a decorative paper printing and conveying process.

[0007] In the first aspect, the present application provides an adaptive tensioning mechanism, which adopts the following technical solution: an adaptive tensioning mechanism, including a conveyor frame, on which is rotatably connected a pressure roller for abutting decorative paper, the outer circular side of the pressure roller having a floating layer, the floating layer including an air cushion bag connected to the outer side of the pressure roller and an outward-expanding support elastic member arranged on the inner side of the air cushion bag, the outward-expanding support elastic member being used to keep the outer side of the air cushion bag in an arc shape for fitting the surface of the decorative paper.

[0008] By adopting the above technical solution, during the conveying process, a floating layer is provided on the upper side of the pressing roller. After being pressed onto the decorative paper, it will deform to form a corresponding concave and convex outer wall. In addition, the internal outward-expanding supporting elastic member can enable the outer side to better maintain the shape of the arc, while forming good support in the axial and radial directions. Therefore, during the transportation of the decorative paper, the shape of the outer side can be adaptively changed to correspond to decorative paper in different length directions.

[0009] Preferably, both ends of the air cushion bag have a receiving box for receiving the extruded portions at both axial ends of the air cushion bag.

[0010] By adopting the above technical solution, during the extrusion process, both ends of the air cushion bag have space for deformation and can extend outward in the axial direction.

[0011] Preferably, the axial side surface of the air cushion bag has a deformable side edge, the thickness of the deformable side edge is smaller than the remaining portion of the air cushion bag, and the deformable side edge is used to be embedded in the accommodating box.

[0012] By adopting the above technical solution, during the extrusion process, the deformed side edges on both sides are thinner in thickness, thereby achieving the purpose of convenient outward bulging; at the same time, the wall thickness of the air cushion bag after deformation is thinner, and the accommodating box can form a protective effect for the side edges of the air cushion bag.

[0013] Preferably, the distance between the outer side wall of the accommodating box and the central axis of the pressing roller is smaller than the distance between the outer side wall of the air cushion bag.

[0014] By adopting the above technical solution, during the squeezing process, the accommodating box will not affect the pressing effect and will not contact the decorative paper, thus playing a protective role.

[0015] Preferably, both axial ends of the air cushion bag have extensions, the deformable side edges are located on the extensions, and one side of the accommodating box has an opening for the extensions to be embedded in.

[0016] By adopting the above technical solution, the accommodating box can cooperate with the extension part through the opening to be more stably connected to the air cushion bag, and the accommodating box can limit the shape of the two end parts of the air cushion bag to prevent the circumferential surface from changing when the air cushion bag is deformed, thereby further improving the resistance effect.

[0017] Preferably, the opening has an engaging block embedded in the extension portion for positioning and limiting the position of the extension portion.

[0018] By adopting the above technical solution, the circumferential surface of the non-interference part of the storage box will be limited, so that the middle part that can interfere with the decorative paper is the main interference part. At the same time, after the circumferential surfaces of the two ends of the storage box are limited, when it is under pressure, the deformation side at the end will be deformed first.

[0019] Preferably, the middle portion of the accommodating box has an avoidance groove for the end portion of the pressing roller to pass through, and the diameter of the avoidance groove is larger than the end portion of the pressing roller.

[0020] By adopting the above technical solution, during the pressing process, the air cushion bag may form an arc shape as it deforms with the raised portion of the decorative paper. At this time, the accommodating box can deform along with the air cushion bag, and will not affect the normal rotation of the pressing roller during the deformation process, thereby achieving an adaptive change effect.

[0021] Preferably, the outward-expanding supporting elastic member includes multiple groups of spring pieces, each group has two spring pieces, the spring pieces are arc-shaped, the protruding parts of the two spring pieces in each group are arranged back to back, and the opposite directions are arranged axially, and the two spring pieces form a spherical support point.

[0022] By adopting the above technical solution, when encountering a raised part, the spring sheet is deformed according to the actual position, and the adjacent spring sheet groups can form an axial clamping effect on the raised part. At the same time, the two axially arranged spring sheets have a fixed extension direction parallel to the axial direction of the air cushion bag, which makes the fixed connection more convenient and will not cause interference in the circumferential direction.

[0023] In the second aspect, the present application provides a decorative paper conveying device, comprising the above-mentioned adaptive tensioning mechanism and a frame, wherein the frame is connected to the conveying frame via a telescopic rod, and a telescopic spring is also provided on the outside of the telescopic rod so that the conveying frame presses the air cushion bag against the decorative paper.

[0024] In a third aspect, the present application provides a decorative paper printing and conveying process, including the above-mentioned decorative paper conveying device.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. During the conveying process, a floating layer is provided on the upper side of the pressing roller. After pressing onto the decorative paper, it will deform to form a concave and convex outer wall. The internal outward expansion support elastic member can ensure that the outer side maintains the arc shape well, while providing good support in the axial and radial directions. Therefore, during the process of transporting the decorative paper, the outer side shape can be adaptively changed to accommodate decorative paper of different lengths. 2. During the pressing process, the air cushion may form an arc shape as it deforms along with the raised portion of the decorative paper. At this time, the container can deform along with the air cushion, and the deformation will not affect the normal rotation of the pressing roller, achieving an adaptive change effect. 3. When encountering a raised part, the spring sheet deforms according to the actual position, and the adjacent spring sheet groups can form an axial clamping effect on the raised part. At the same time, the two axially arranged spring sheets have a fixed extension direction parallel to the axial direction of the air cushion bag, which makes the fixed connection more convenient and does not form interference in the circumferential direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of Example 1 of the present application; Figure 2 is a partial cross-sectional view of Example 1 of the present application; Figure 3 yes Figure 2 A magnified schematic diagram of part A; Figure 4 It is a structural diagram of Example 2 of the present application.

[0027] Explanation of the accompanying reference numerals: 100, conveying frame; 110, pressure roller; 111, air cushion bag; 112, outward-expanding supporting elastic member; 113, extension portion; 114, first reduced diameter portion; 115, second reduced diameter portion; 116, deformable side; 117, accommodating box; 118, interlocking block; 120, avoidance groove; 130, spring piece; 140, frame; 141, telescopic rod; 142, telescopic spring. DETAILED DESCRIPTION

[0028] The present application is further described in detail below with reference to the accompanying drawings.

[0029] Example 1: Example 1 of the present application discloses an adaptive tensioning mechanism, referring to Figure 1 、 Figure 2 , including a conveying frame 100, on which a pressing roller 110 for contacting the decorative paper is rotatably connected. The outer circular side of the pressing roller 110 has a floating layer. The floating layer includes an air cushion bag 111 connected to the outer side of the pressing roller 110 and an outward-expanding supporting elastic member 112 arranged on the inner side of the air cushion bag 111. The outward-expanding supporting elastic member 112 is used to keep the outer side of the air cushion bag 111 in an arc shape so as to fit the surface of the decorative paper.

[0030] Specifically, refer to Figure 2 、 Figure 3, both axial ends of the air cushion bag 111 have an extension portion 113, including a first diameter-reduced portion 114 and a second diameter-reduced portion 115, the diameter of the first diameter-reduced portion 114 is smaller than that of the second diameter-reduced portion 115, and the diameter of the second diameter-reduced portion 115 is smaller than the diameter of the middle portion of the air cushion bag 111. The axial side surface of the air cushion bag 111 has a deformable side edge 116, and the deformable side edge 116 is located on the extension portion 113, specifically, it is located on the end face of the second diameter-reduced portion 115. The thickness of the deformable side edge 116 is smaller than that of the rest of the air cushion bag 111, and the cross-section is arc-shaped. The arc-shaped structure enables the middle portion of the deformable side edge 116 to form a force-bearing portion, which is convenient for deformation bulge.

[0031] The air cushion 111 has a housing 117 at each end. One side of the housing 117 has an opening into which the extension 113 is inserted. Deformable side edges 116 are designed to fit within the housing 117. The openings have engaging blocks 118 that fit within the extension 113 to position and limit the extension 113. Specifically, the engaging blocks 118 fit within the first reduced diameter portion 114. A gap exists between the housing 117 and the ends of the air cushion 111 to receive the extruded portions of the air cushion 111 at its axial ends.

[0032] The distance between the outer wall of the accommodating box 117 and the central axis of the pressing roller 110 is smaller than the distance between the outer wall of the air cushion 111. In this way, the accommodating box 117 will not interfere with the decorative paper on the side where the air cushion 111 is squeezed and stressed.

[0033] It's worth noting that the center of the accommodating box 117 has an escape groove 120 for the end of the pressing roller 110 to pass through. The diameter of the escape groove 120 is larger than the end of the pressing roller 110, allowing for deformation. During the pressing process, the air cushion 111 can deform along with the different raised portions of the decorative paper. Simultaneously, as one side of the air cushion 111 presses against the decorative paper, a portion of the end of the air cushion 111 bulges outward, forming a curve. However, because the accommodating box 117 is clamped to the end of the air cushion 111 and can bend freely through the escape groove 120, it can adapt to its shape.

[0034] To ensure that the air cushion 111 maintains its arc-shaped outer wall after deformation, the outward-expanding support elastic member 112 in this embodiment includes multiple groups of spring clips 130, each group of which has two spring clips 130. The spring clips 130 are arc-shaped, and the protruding portions of the two spring clips 130 in each group are arranged in opposite directions, and the opposite directions are arranged axially, forming a spherical support point. The opposite directions are arranged axially, which enables the spring clips 130 to exert a force on the decorative paper perpendicular to the direction of movement of the decorative paper as much as possible during the deformation process, thereby reducing the impact on the decorative paper during transportation. At the same time, the two axially arranged spring clips 130 have a fixed extension direction parallel to the axis of the air cushion 111, making the fixed connection more convenient and preventing interference in the circumferential direction.

[0035] Example 2: Based on the adaptive tensioning mechanism disclosed in Example 1, refer to Figure 4 Example 2 discloses a decorative paper conveying device, including an adaptive tensioning mechanism and a frame 140. The frame 140 is connected to the conveying frame 100 through a telescopic rod 141. A telescopic spring 142 is also sleeved on the outside of the telescopic rod 141, so that the conveying frame 100 presses the airbag cushion against the decorative paper.

[0036] Example 3: Based on the decorative paper conveying device disclosed in Example 2, Example 3 discloses a decorative paper printing and conveying process, including a decorative paper conveying device.

[0037] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An adaptive tensioning mechanism, comprising a conveying frame (100), characterized in that: A pressing roller (110) for contacting the decorative paper is rotatably connected to the conveying frame (100); the outer circumferential side of the pressing roller (110) has a floating layer; the floating layer comprises an air cushion bag (111) connected to the outer side of the pressing roller (110) and an outward-expanding supporting elastic member (112) arranged on the inner side of the air cushion bag (111); the outward-expanding supporting elastic member (112) is used to keep the outer side of the air cushion bag (111) in an arc shape so as to contact the surface of the decorative paper.

2. The adaptive tensioning mechanism according to claim 1, characterized in that: Both ends of the air cushion bag (111) are provided with a receiving box (117) for receiving the extruded portions at both axial ends of the air cushion bag (111).

3. The adaptive tensioning mechanism according to claim 2, characterized in that: The axial side surface of the air cushion bag (111) has a deformable side edge (116), the thickness of the deformable side edge (116) is smaller than the remaining portion of the air cushion bag (111), and the deformable side edge (116) is used to be embedded in the accommodating box (117).

4. The adaptive tensioning mechanism according to claim 3, characterized in that: The distance between the outer side wall of the accommodating box (117) and the central axis of the pressing roller (110) is smaller than the distance between the outer side wall of the air cushion bag (111).

5. The adaptive tensioning mechanism according to claim 4, characterized in that: Both axial ends of the air cushion bag (111) have extensions (113), the deformable side edges (116) are located on the extensions (113), and one side of the accommodating box (117) has an opening for the extensions (113) to be embedded.

6. The adaptive tensioning mechanism according to claim 5, characterized in that: The opening has an engaging block (118) embedded in the extension portion (113) for positioning and limiting the position of the extension portion (113).

7. The adaptive tensioning mechanism according to claim 6, characterized in that: The middle portion of the accommodating box (117) has an avoidance groove (120) for the end portion of the pressing roller (110) to pass through, and the diameter of the avoidance groove (120) is larger than the end portion of the pressing roller (110).

8. The adaptive tensioning mechanism according to claim 7, characterized in that: The outward-expanding supporting elastic member (112) comprises a plurality of groups of spring pieces (130), each group of the spring pieces (130) having two spring pieces (130), the spring pieces (130) being arc-shaped, the protruding parts of the two spring pieces (130) in each group being arranged in opposite directions, and the opposite directions being arranged along the axial direction, and the two spring pieces (130) forming a spherical supporting point.

9. A decorative paper conveying device, characterized in that: The invention comprises an adaptive tensioning mechanism as claimed in any one of claims 1 to 8 and a frame (140), wherein the frame (140) is connected to the conveying frame (100) via a telescopic rod (141), and a telescopic spring (142) is sleeved on the outside of the telescopic rod (141), so that the conveying frame (100) presses the air cushion bag (111) against the decorative paper.

10. A decorative paper printing and conveying process, characterized by: It comprises the decorative paper conveying device as claimed in claim 9.

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