Rolling type page frame and page turning type drying machine
By adopting a rolling page holder design in the page-turning dryer, and using rollers to replace sliding friction, the problems of shaking and dust during page holder flipping are solved, thereby improving printing quality and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-03
- Publication Date
- 2026-04-07
AI Technical Summary
In existing flip-type dryers, dust is generated due to friction between the support components when the page holders flip during the drying process of printed paper, resulting in a decrease in print quality.
The paper holder adopts a rolling design, with the support rod and paper support rod set at an obtuse angle. The support rod is equipped with rollers to form a stable triangular support system. The rollers roll on the support rod to replace sliding friction and avoid the generation of metal dust.
It improves the stability and safety of the page holder flipping process, prevents friction impurities from affecting print quality, and ensures printing accuracy during the drying process.
Smart Images
Figure CN224089883U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a rolling leaf rack and a flip-type dryer, belonging to the field of drying equipment, and is mainly suitable for drying decal paper. Background Technology
[0002] Decorative paper is a type of craft paper with printed patterns on its base paper. Based on paper properties, it is classified into three categories: ceramic decals (polyvinyl butyral film paper), underglaze decals, and water-transfer decals. Because the decals are wet during screen printing, they require drying after printing.
[0003] Currently, the most common screen printing dryers on the market are flip-type dryers. After the decal paper is fed into the flip-type dryer, it dries inside the drying chamber. To prevent it from tipping over or coming into contact with the paper holder during the drying process, the decal paper is kept tilted upwards. After drying, the decal paper needs to be flipped approximately 180 degrees at the tail of the dryer. When the page holder flips at the tail of the dryer, it will vibrate due to the sudden change in tilt angle. This vibration of the page holder will affect the printing quality of the decal paper.
[0004] To solve the above-mentioned technical problems, in the existing technology, support rods are usually set on the crossbars of the page holder, and fixed support plates are set on the support rods. When the decal flips at the tail of the dryer, the support plate on the support rod of the preceding page holder will contact the outer surface of the following support rod. As the flipping angle of the page holder increases, the support plate of the preceding page holder will rub against the outer surface of the following support rod. Over time, the friction between them will increase, and the friction will generate metal dust. The dust falls onto the printing surface, contaminating the printing and causing a significant increase in the printing defect rate. Utility Model Content
[0005] The present invention aims to address the above-mentioned technical problems by providing a rolling leaf holder that can prevent dust from being generated due to friction between support members when the leaf holder is flipped on a flip-type dryer, and a flip-type dryer having a rolling leaf holder.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A scrolling page holder includes a crossbar and a plurality of paper-supporting rods extending perpendicularly to the crossbar. The outer ends of the paper-supporting rods are bent to form paper-supporting hooks. The plurality of paper-supporting rods are arranged side by side at intervals along the length of the crossbar. Fixing members are provided at both ends of the crossbar. Support rods are fixedly provided at both ends of the crossbar, and the support rods form an obtuse angle with the main body of the paper-supporting rods. Support elements are provided on the inner side of the extension section of the support rods. The support elements include mounting seats fixed on the support rods and rollers mounted on the mounting seats via rotating shafts. The rotating shafts are arranged parallel to the crossbar.
[0008] Therefore, when the page holder assembly performs a flipping motion at the tail of the dryer, the support rod of the preceding page holder, through the rollers mounted at its end, forms dynamic contact support with the support rod of the following page holder. Because the main body of the support rod and the paper support rod are inclined at an obtuse angle, the rollers on the support rod precisely abut against the outer surface of the support rod of the following page holder during tilting. This obtuse-angle support structure forms a stable triangular support system, which not only effectively suppresses the shaking caused by the sudden change in tilt angle during flipping through mechanical limiting, increasing the smoothness of page holder flipping, but also limits the maximum tilting range of the page holder using the geometric angle of the support rod.
[0009] By replacing the traditional sliding contact method with rolling friction, the rollers can rotate freely on the support rods, transforming traditional sliding friction into low-resistance rolling friction and avoiding wear debris caused by direct contact between the metal support rods. Furthermore, as the tilt angle of the page holder increases, the rollers roll on the support rods of subsequent page holders, but always maintain contact with the support rods. When the page holder reaches its maximum tilt angle, the rollers stop moving, maintaining a relatively stationary state between the two adjacent page holders, thus forming a stable support structure. This structurally avoids the impact of frictional impurities on the quality of the printed paper and ensures that the printing accuracy during the drying process is not affected by equipment operation. This significantly improves the stability and safety during page holder flipping and prevents excessive friction between the support rods.
[0010] Based on the embodiments of this utility model, further optimizations can be made to this utility model. The optimized technical solutions are as follows:
[0011] In one specific embodiment, the support element is disposed on the side wall of the support rod extending toward the paper-holding rod.
[0012] Specifically, the mounting base includes ear plates symmetrically arranged on the support rod, and the rollers are rotatably connected between the symmetrically arranged ear plates via a rotating shaft.
[0013] Specifically, the fixing component includes a fixing plate movably sleeved on the crossbar, and a fixing hole is opened at the end of the fixing plate; limiting parts are provided on both sides of the fixing plate and fixedly sleeved on the crossbar; there is a movable gap between the fixing plate and the limiting parts.
[0014] Specifically, the fixing plate is movably sleeved on the crossbar by a retaining ring; the limiting part includes an annular connector, and the annular connector has a boss extending to one side at one end facing the fixing plate.
[0015] Specifically, the crossbar is provided with a number of guide plates arranged at intervals along the length of the crossbar.
[0016] Specifically, the guide plate includes a connecting portion and a guide portion extending toward the front of the page rack.
[0017] Specifically, the support rod is formed by bending the paper-holding rod near the end of the crossbar toward the reverse side of the page holder.
[0018] Based on the same inventive concept, this utility model also provides a page-turning dryer, which includes a frame, a chain mechanism that can be circulated and moved on the frame, and a plurality of rolling page frames as described above that are fixedly installed on the chain mechanism. When two adjacent rolling page frames run to the end of the dryer, the roller of one rolling page frame keeps in rolling contact with the support rod of the other rolling page frame.
[0019] Therefore, when the page rack enters the tail-end tilting area of the dryer, the crossbar of the page rack rotates around the fixed plate, adjusting the tilt angle of the page rack according to gravity. The horizontally arranged rollers in the support elements of the preceding page rack gradually approach the side wall of the support rod of the following page rack as the support rod tilts. The roller axes are orthogonal to the direction of page rack movement, ensuring pure rolling conditions upon contact (the linear velocity direction at the contact point is consistent with the roller's rotation plane). When the page rack tilts to a certain angle, the rollers of the preceding page rack contact the side wall of the support rod of the following page rack, and the contact angle gradually increases with the tilt of the page rack, causing the rollers to roll upwards on the side wall of the support rod of the following page rack. When the limiting part on the crossbar contacts the fixed plate again, the maximum tilt angle of the page rack is reached, and a stable support structure is formed between the two adjacent page racks by the support rod and rollers. When the leaf rack enters the front end of the dryer, the angle of the leaf rack changes slowly. However, when the leaf rack flips, the rollers of the preceding leaf rack will still contact the side wall of the support rod of the following leaf rack, so that the leaf racks remain stable and prevent the leaf racks from shaking over a wide range. At the same time, the rolling contact between the rollers and the support rods will also prevent the generation of debris.
[0020] Compared with the prior art, the beneficial effects of this utility model are:
[0021] 1) The rolling leaf rack and flip-type dryer of this utility model form a support structure by means of a support rod that is inclined at an obtuse angle to the reverse side of the leaf rack. The mechanical limit effectively suppresses the shaking caused by the sudden change of tilt angle when the leaf rack flips. At the same time, the maximum tilt amplitude is limited by geometric angle, which significantly improves the stability and safety of the leaf rack flipping process and reduces the shaking of the leaf rack during the flipping process.
[0022] 2) The rolling page holder and flip-type dryer of this utility model uses rollers to replace the traditional sliding contact, transforming sliding friction into low-resistance rolling friction and avoiding direct contact between metal support rods to prevent wear debris. This flexible contact method provides rigid support while reducing the impact of flipping through rolling buffer, structurally eliminating the influence of frictional impurities on the quality of printed decals.
[0023] 3) The rolling leaf rack and the page-turning dryer fixing parts of this utility model form an automatically adjustable installation structure by cooperating with the movable fixing plate and the limiting part, so that each leaf rack maintains an upward tilted posture during the drying process.
[0024] 4) The guide plates on the rolling page frame crossbar of this utility model are arranged along the extension direction to provide guidance and positioning for the placement of the decals, ensuring that the printing accuracy during the drying process is not affected by the operation of the equipment. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of the scrolling page rack of this utility model;
[0026] Figure 2 yes Figure 1 A magnified view of a portion of point N in the middle;
[0027] Figure 3 This is a schematic diagram of the structure of the page-turning dryer of this utility model;
[0028] Figure 4 yes Figure 3 A magnified view of a section at point M.
[0029] In the figure
[0030] 1-Horizontal bar; 2-Paper support bar; 3-Fixing component; 31-Fixing plate; 311-Fixing hole; 312-Snap ring; 32-Limiting part; 321-Annular connector; 322-Boss; 4-Clamp; 5-Support rod; 6-Support element; 61-Roller; 62-Mounting base; 63-Ear plate; 64-Rotating shaft; 7-Guide plate; 71-Connecting part; 72-Guide part; 8-Frame; 9-Chain mechanism; 10-Page holder. Detailed Implementation
[0031] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.
[0032] like Figure 1As shown, the scrolling page holder of this embodiment includes a crossbar 1 and several paper-supporting rods 2 extending perpendicularly to the crossbar 1. The outer ends of the paper-supporting rods 2 are bent to form paper-supporting hooks. The several paper-supporting rods 2 are arranged side by side along the length of the crossbar 1 to form the front of the page holder 10 for placing decorative paper. Fixing members 3 are provided at both ends of the crossbar 1, and a clamp 4 located on the front of the page holder 10 is provided in the middle of the crossbar 1. Support rods 5 extending toward the back of the page holder 10 are provided at both ends of the crossbar 1. The support rods 5 are inclined and form an obtuse angle with the main body of the paper-supporting rods 2. The support rods 5 are formed by bending the paper-supporting rods 2 near the end of the crossbar 1 toward the back of the page holder 10.
[0033] like Figure 2 As shown, a support element 6 is provided on the support rod 5, and the support element 6 is disposed on the side wall of the support rod 5 in the direction of extension of the paper-holding rod 2. The support element 6 includes a mounting base 62 disposed on the side wall of the support rod 5, and the mounting base 62 includes symmetrically arranged ear plates 63. The symmetrically arranged ear plates 63 are rotatably connected to the rollers 61 through a rotating shaft 64. The rollers 61 are arranged parallel to the crossbar 1.
[0034] like Figure 3 As shown, this embodiment also provides a page-turning dryer, including a frame 8, a chain assembly 9 that is cyclically movable on the frame 8, and a plurality of rolling page holders as described above that are fixedly installed on the chain assembly 9.
[0035] like Figure 1 , Figure 2 , Figure 4 As shown, the array of paper-supporting rods 2 forms a flat bearing surface, ensuring that the decorative paper is placed neatly and facilitating positioning operations; the clamps 4 on the crossbar 1 can fix the decorative paper to the front of the page holder 10, enhancing the stability of the decorative paper installation and preventing displacement. The obtuse angle (approximately 120-135°) inclined structure of the support rod 5 improves the anti-tipping ability of the page holder 10 through mechanical optimization. In this embodiment, the support rod 5 is formed by bending the paper-supporting rod 2, reducing the cost of parts processing and achieving a lightweight structural design.
[0036] To improve the smoothness of the page rack 10 during flipping, a support element 6 is provided on the support rod 5. When the page rack 10 flips at the rear of the flipping dryer, the roller 61 of the support element 6 on the preceding page rack 10 contacts the side wall of the support rod 5 of the following page rack 10, that is, the side opposite to the support element 6. The support rods 5 on the two page racks 10 form a triangular support structure when they contact each other. As the tilt angle of the page rack 10 increases, the roller 61 rolls on the support rod 5 of the following page rack 10, but the roller 61 always remains in contact with the support rod 5. When the page rack 10 flips to the maximum angle, the roller 61 stops moving and the two adjacent page racks remain relatively stationary, thus forming a stable support structure and improving the stability and safety during the page rack flipping process.
[0037] The roller 61 makes rolling friction with the support rod of the subsequent page frame, which reduces the moving resistance of the page frame 10, improves the smoothness of equipment operation, and reduces mechanical wear; the horizontal arrangement of the roller 61 ensures that the roller support direction is consistent with the page frame moving trajectory, achieving precise guidance.
[0038] like Figure 2 As shown, to facilitate the installation of the leaf holder 10 on the chain conveyor mechanism 9 of the flip-type dryer, the fixing member 3 includes a fixing plate 31 movably sleeved on the crossbar 1, with a fixing hole 311 at the end of the fixing plate 31; limiting parts 32 are provided on both sides of the fixing plate 31 and fixedly sleeved on the crossbar 1; there is a movable gap between the fixing plate 31 and the limiting parts 32. The fixing plate 31 is movably sleeved on the crossbar 1 by a retaining ring 312; the limiting part 32 includes an annular connector 321, with a boss 322 extending to one side at one end of the annular connector 321 facing the fixing plate 31. The movable gap allows for ±15mm position adjustment to adapt to different dryer guide rails.
[0039] like Figure 1 , Figure 2 As shown, the fixing hole 311 at the end of the fixing plate 31 is used to mount the page holder 10 onto the chain conveyor mechanism 9. The movable distance between the fixing plate 31 and the limiting part 32 is to allow the page holder 10 to flip on the chain conveyor mechanism 9, so that the page holder 10 maintains an upward tilted posture during the drying stage. After the fixing plate 31 is fixedly connected to the chain conveyor mechanism 9, the crossbar 1 can rotate around the axis of the retaining ring 312. The limiting part 32 is used to limit the maximum tilt angle of the page holder to prevent the page holder from tipping over.
[0040] The crossbar 1 is provided with a plurality of guide plates 7 arranged along the extending direction of the crossbar 1. The guide plate 7 includes a connecting part 71 and a guide part 72 extending toward the front of the page holder 10. The gradient array of guide plates forms a continuous guiding surface, and the frictional resistance is reduced by the line contact between the guide part 72 and the decal.
[0041] Therefore, when the page rack enters the rear tilting area of the dryer, the crossbar 1 of the page rack 10 rotates around the fixed plate 31, adjusting the tilt angle of the page rack 10 according to gravity. The horizontally arranged roller 61 in the support element 6 of the preceding page rack gradually approaches the side wall of the support rod of the following page rack as the support rod tilts. The roller axis is orthogonal to the direction of movement of the page rack, ensuring that pure rolling conditions are formed when in contact (the linear velocity direction of the contact point is consistent with the plane of rotation of the roller). When the page rack tilts to a certain angle, the roller 61 of the preceding page rack contacts the side wall of the support rod 5 of the following page rack, and the tilt angle gradually increases as the page rack tilts, and the roller 61 rolls upward on the side wall of the support rod 5 of the following page rack. When the limiting part 32 on the crossbar 1 contacts the fixed plate 31 again, the maximum tilt angle of the page rack is reached, and a stable support structure is formed between the two adjacent page racks by the support rod and the roller. When the leaf rack enters the front end of the dryer, the angle of the leaf rack changes slowly. However, when the leaf rack flips, the roller 61 of the preceding leaf rack will still contact the side wall of the support rod 5 of the following leaf rack, so that the leaf racks remain stable and prevent the leaf racks from shaking in a large range. At the same time, the rolling contact between the roller 61 and the support rod 5 will also prevent the generation of debris.
[0042] The above embodiments should be understood as being used only to illustrate the present invention more clearly, and not to limit the scope of the present invention. After reading the present invention, any modifications of the present invention by those skilled in the art in various equivalent forms fall within the scope defined by the appended claims.
Claims
1. A scrolling page holder, comprising a crossbar (1) and a plurality of paper-supporting rods (2) extending perpendicularly to the crossbar (1), wherein the outer ends of the paper-supporting rods (2) are bent to form paper-supporting hooks, and the plurality of paper-supporting rods (2) are arranged side by side at intervals along the length direction of the crossbar (1); and fixing members (3) are provided at both ends of the crossbar (1); characterized in that: The crossbar (1) is fixedly provided with support rods (5) at both ends, and the support rods (5) form an obtuse angle with the main body of the paper support rod (2); the inner side of the extension section of the support rod (5) is provided with a support element (6). The support element (6) includes a mounting base (62) fixed on the support rod (5) and a roller (61) mounted on the mounting base (62) via a rotating shaft (64); the rotating shaft (64) is arranged parallel to the crossbar (1).
2. The scrolling page rack according to claim 1, characterized in that: The support element (6) is disposed on the side wall of the support rod (5) in the direction of extension of the paper support rod (2).
3. The scrolling page rack according to claim 1, characterized in that: The mounting base (62) includes ear plates (63) symmetrically arranged on the support rod (5), and the ear plates (63) symmetrically arranged are rotatably connected to the rollers (61) via a rotating shaft (64).
4. The scrolling page rack according to claim 1, characterized in that: The fixing member (3) includes a fixing plate (31) movably sleeved on the crossbar (1), and a fixing hole (311) is opened at the end of the fixing plate (31); limiting parts (32) are provided on both sides of the fixing plate (31) and fixedly sleeved on the crossbar (1); there is a movable gap between the fixing plate (31) and the limiting part (32).
5. The scrolling page rack according to claim 4, characterized in that: The fixing plate (31) is movably sleeved on the crossbar (1) by a retaining ring (312); the limiting part (32) includes an annular connector (321), and the annular connector (321) has a boss (322) extending to one side at one end facing the fixing plate (31).
6. The scrolling page rack according to claim 1, characterized in that: The crossbar (1) is provided with a number of guide plates (7) arranged at intervals along the length of the crossbar (1).
7. The scrolling page rack according to claim 6, characterized in that: The guide plate (7) includes a connecting part (71) and a guide part (72) extending toward the front of the page frame (10).
8. The scrolling page holder according to any one of claims 1-7, characterized in that: The support rod (5) is formed by bending the paper support rod (2) near the end of the crossbar (1) toward the reverse side of the page frame (10).
9. The scrolling page holder according to any one of claims 1-7, characterized in that: The crossbar (1) is provided with a clamp (4) located on the front of the page frame (10) at the middle.
10. A flip-type dryer, comprising a frame (8), a chain assembly (9) disposed on the frame (8) and movable in a circular manner, and a plurality of rolling leaf frames as described in any one of claims 1-9 fixedly mounted on the chain assembly (9), wherein when two adjacent rolling leaf frames are running to the end of the dryer, the roller (61) of one rolling leaf frame and the support rod (5) of the other rolling leaf frame maintain rolling contact.