A jigsaw puzzle coating structure

Abstract

The utility model discloses a jigsaw coating structure relates to surface coating equipment technical field, and the existing coating equipment has the limitation of limited roll distance self -adaptation ability and the limitation of double -sided floating easy deflection and jam, including work table and both sides mounting column, and the lower part is equipped with glue spreading roller between mounting column, and the inside of mounting column is equipped with adjusting block, and the upper part is provided with the compliant down pressure constant force of adaptive spring, and the main direction board array of adjusting block side end has the tooth, is engaged with the gear inside installation groove, and both sides gear is constituted linkage mechanism by synchronous shaft rigid series connection, the utility model discloses the synergistic gain of gear, rack, synchronous shaft's rigid forced synchronization and spring flexible profiling, ensures that the cover pressure roller keeps absolute level when following the base material thickness dynamic lift, effectively eliminates the deflection interference, and promotes the robustness of glue spreading uniformity and mechanical operation.

Description

Technical Field

[0001] This utility model relates to the field of surface coating equipment technology, and specifically to a jigsaw puzzle coating structure. Background Technology

[0002] Surface coating and roll forming are core processes in the post-processing of planar substrates (such as multi-module spliced ​​products like jigsaw puzzles). They not only determine the optical consistency of the final product but are also crucial for achieving high-strength bonding and structural curing between individual modules. As coating processes evolve towards higher precision and greater adaptability, coating equipment faces increasingly stringent requirements for the responsiveness and dynamic stability of the roll forming mechanism when dealing with substrates with minute thickness tolerances or surface unevenness.

[0003] However, existing conventional twin-roll coating equipment still has the following technical limitations in continuous operation scenarios on complex substrates: lack of dynamic thickness adaptation capability. The gap between the twin rolls with traditional rigid screw limit is difficult to adapt to the thickness fluctuation of the substrate in real time, which can easily cause crushing damage (edge ​​chipping, deformation) to the substrate in the positive thickness deviation area, or cause uneven transfer of coating liquid in the negative deviation area; spatial skew challenge in the double-end floating state. When some equipment introduces single-end or double-end independent elastic floating in order to solve the thickness adaptation problem, due to the asymmetrical force or tilted feeding when the mosaic substrate is introduced, it is easy to cause axial skew of the upper pressure roller. This spatiotemporal decoupling phenomenon not only deteriorates the consistency of the transverse coating thickness, but also causes mechanical jamming and interference wear of the guide mechanism in severe cases. Utility Model Content

[0004] One objective of this invention is to provide a new technical solution for a jigsaw puzzle coating structure.

[0005] According to a first aspect of the present invention, a jigsaw puzzle coating structure is provided, including a workbench, mounting columns are fixedly provided on both sides of the upper part of the workbench, a glue-applying roller is installed between the two mounting columns through a first connecting shaft, an adjusting block is provided inside the two mounting columns through an adaptive spring, and a covering roller is installed between the two adjusting blocks through another first connecting shaft. A linkage mechanism for synchronously adjusting the height of the pressure roller is also provided between the two mounting columns.

[0006] Furthermore, the upper part of the workbench is provided with a storage tank for storing glue, and the glue-applying roller is disposed on the upper part of the storage tank, with the lower end face of the glue-applying roller located below the upper end face of the storage tank.

[0007] Furthermore, the mounting post has an internal mounting groove for limiting the adjusting block, and a gear groove is provided inside the mounting post. The gear groove is located on the upper side of the mounting groove, and the gear groove and the mounting groove are connected.

[0008] Furthermore, the adjusting block is movably located inside the mounting groove, and a main guide plate and a secondary guide plate are respectively provided on both sides of the adjusting block, with the main guide plate and the secondary guide plate respectively attached to the two inner walls of the mounting groove.

[0009] Furthermore, a gear is movably mounted inside the gear slot via a second connecting shaft, the gear key is connected to the second connecting shaft, and a plurality of teeth are fixedly provided on one side of the main guide plate, the gear meshing with the teeth.

[0010] Furthermore, a synchronous shaft is connected between the two second connecting shafts, and the gear, the second connecting shaft, and the synchronous shaft together form a linkage mechanism.

[0011] Furthermore, the adaptive spring is disposed inside the mounting groove, and a cover plate is mounted on the upper end of the mounting column by fixing bolts. The two ends of the adaptive spring are respectively fixedly connected to the lower surface of the cover plate and the upper end surface of the adjusting block.

[0012] Furthermore, a feeding plate and a discharging plate are fixedly arranged between the two mounting columns. The feeding plate and the discharging plate are respectively arranged on both sides of the coating roller, and the feeding plate and the discharging plate are arranged on the upper part of the worktable.

[0013] Furthermore, a crank rod is movably connected to one side of each of the two adjusting blocks, and an adjusting lever is movably installed between the two crank rods.

[0014] Furthermore, support legs are welded to the four corners of the bottom of the workbench, and a power source for driving the glue-applying roller is provided on the mounting column on one side.

[0015] The beneficial effects of this utility model are: This invention features teeth on the main side of the adjusting block and meshing gears inside the mounting column, with a synchronous shaft connecting the gears on both sides in a rigid series. The linkage mechanism forces the lifting displacement of both sides to be completely consistent when the coating roller encounters a substrate of varying thickness and is lifted upwards. This completely overcomes the axial deviation and jamming problems caused by excessive force on one side of the traditional floating roller, improving the uniformity of the coating pressure distribution in the lateral direction and the robustness of the system operation. This invention features an adaptive spring connected between the cover plate and the adjusting block within the mounting groove. When a jigsaw puzzle substrate with thickness tolerance passes through the gap between the two rollers, the adaptive spring provides a smooth longitudinal clearance space and a constant reset pressure in real time. The adaptive flexible suspension effectively mitigates the risk of substrate damage caused by rigid crushing and improves the equipment's tolerance to different batches of products. This invention features a crank lever and an adjustment lever movably connected to the adjustment blocks on both sides. In the event of sudden situations such as abnormal material jamming, coating termination, or equipment maintenance, the operator can quickly and synchronously raise the pressure roller using a physical lever arm, thereby rapidly decoupling the coating pressure state from the conveying state. This not only simplifies the response process for machine shutdown and glue interruption but also greatly improves the equipment's control sensitivity and maintenance convenience under complex working conditions. Furthermore, the adjustment lever setting allows for the flat conveying of multi-module mosaics.

[0016] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the linkage mechanism of this utility model; Figure 4 This is a schematic cross-sectional view of the mounting column of this utility model.

[0019] The following are marked in the diagram: 1. Workbench; 2. Support leg; 3. Storage tank; 4. Mounting column; 5. Mounting groove; 6. Gear groove; 7. Adjusting block; 8. Secondary guide plate; 9. Main guide plate; 10. Gear; 11. Second connecting shaft; 12. Gear; 13. Adaptive spring; 14. First connecting shaft; 15. Glue roller; 16. Overlapping roller; 17. Synchronous shaft; 18. Crank rod; 19. Adjusting lever; 20. Cover plate; 21. Feeding plate; 22. Discharge plate; 23. Fixing bolt. Detailed Implementation

[0020] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0021] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0022] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0023] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0024] like Figure 1-4 As shown, a jigsaw puzzle coating structure includes a workbench 1. Mounting columns 4 are fixedly installed on both sides of the upper part of the workbench 1. A glue-applying roller 15 is installed between the two mounting columns 4 through a first connecting shaft 14. An adjusting block 7 is installed inside the two mounting columns 4 through an adaptive spring 13. A covering roller 16 is installed between the two adjusting blocks 7 through another first connecting shaft 14. A linkage mechanism for synchronously adjusting the height of the pressure roller 16 is also provided between the two mounting columns 4.

[0025] In this embodiment, preferably, the upper part of the workbench 1 is provided with a storage tank 3 for storing glue, and the glue-applying roller 15 is disposed on the upper part of the storage tank 3, with the lower end face of the glue-applying roller 15 located below the upper end face of the storage tank 3. It should be noted that by using a physical immersion continuous feeding mechanism, the coating roller 15 is ensured to continuously and evenly encapsulate the adhesive through surface tension and friction during rotation; this simplifies the adhesive supply process, reduces equipment maintenance costs, and ensures the continuity and stability of the coating medium supply.

[0026] In this embodiment, preferably, the mounting post 4 has a mounting groove 5 for the limiting adjustment block 7 inside, and a gear groove 6 is provided inside the mounting post 4. The gear groove 6 is located on the upper side of the mounting groove 5, and the gear groove 6 and the mounting groove 5 are connected. It should be noted that the physical connection between the mounting slot 5 and the gear slot 6 reduces the overall size of the equipment while providing a precise guide cavity for the subsequent mechanical transmission of gear 12 and teeth 10, avoiding contamination of precision meshing components by external dust or excess adhesive, and improving the environmental robustness of the transmission system.

[0027] In this embodiment, preferably, the adjusting block 7 is movably located inside the mounting groove 5, and the two sides of the adjusting block 7 are respectively provided with a main guide plate 9 and a secondary guide plate 8 for guiding and limiting, and the main guide plate 9 and the secondary guide plate 8 are respectively attached to the two inner walls of the mounting groove 5. It should be noted that the surface contact between the main guide plate 9 and the auxiliary guide plate 8 and the inner wall of the mounting groove 5 effectively eliminates the lateral backlash and pitch sway of the adjusting block 7 during vertical lifting and lowering, ensuring that the pressure roller 16 can only perform vertical movement with a single degree of freedom, which greatly improves the mechanical sensitivity and trajectory accuracy of the follow-up contouring.

[0028] In this embodiment, preferably, a gear 12 is movably mounted inside the gear groove 6 via a second connecting shaft 11, the gear 12 is keyed to the second connecting shaft 11, and a plurality of teeth 10 are fixedly provided on one side of the main guide plate 9, and the gear 12 meshes with the teeth 10. It should be noted that the meshing connection between gear 12 and teeth 10 accurately and with zero delay converts the minute vertical linear displacement of the adjusting block 7 caused by the change in substrate thickness into the rotational angular displacement of gear 12, ensuring that both ends of the pressure roller 16 remain horizontal.

[0029] In this embodiment, preferably, a synchronous shaft 17 is connected between the two second connecting shafts 11, and the gear 12, the second connecting shaft 11 and the synchronous shaft 17 together form a linkage mechanism; It should be noted that the rigid intervention of the synchronous shaft 17 forcibly locks the angular velocity and angular displacement of the gears 12 on both sides, thereby constraining the vertical lifting and lowering of the adjusting blocks 7 on both sides to be absolutely equal; the forced mechanical synchronization completely eliminates the jamming phenomenon of the pressure roller 16 caused by the inclined feeding, ensuring the uniformity of the roller pressure along the entire contact line.

[0030] In this embodiment, preferably, the adaptive spring 13 is disposed inside the mounting groove 5, and the upper end of the mounting column 4 is fitted with a cover plate 20 by fixing bolts 23. The two ends of the adaptive spring 13 are respectively fixedly connected to the lower surface of the cover plate 20 and the upper end surface of the adjusting block 7. It should be noted that the adaptive spring 13 accumulates potential energy when the pressure roller 16 is lifted, ensuring that the pressure roller 16 and the glue coating roller 15 always output a relatively constant flexible extrusion force on the puzzle surface; this not only avoids substrate deformation or damage caused by rigid rolling, but also ensures that the glue is evenly coated on the puzzle surface, achieving a synergistic improvement in morphology adaptation and coating quality.

[0031] In this embodiment, preferably, a feeding plate 21 and a discharging plate 22 are fixedly arranged between the two mounting columns 4. The feeding plate 21 and the discharging plate 22 are respectively arranged on both sides of the coating roller 15, and the feeding plate 21 and the discharging plate 22 are arranged on the upper part of the workbench 1. It should be noted that the height is matched with the engagement point height of the glue-applying roller 15 and the pressure roller 16 to eliminate the risk of the puzzle breaking due to gravity when it is fed into or detached from the extrusion zone, thus ensuring the structural integrity of the multi-module puzzle during the conveying process.

[0032] In this embodiment, preferably, a crank rod 18 is movably connected to one side of the two adjusting blocks 7, and an adjusting lever 19 is movably installed between the two crank rods 18. It should be noted that when encountering abnormal material jamming or needing to stop the machine for cleaning, the operator can use the lever 19 to quickly and synchronously raise the pressure rollers 16 on both sides to achieve physical disconnection, giving it extremely high human-machine interaction convenience and emergency avoidance capability. In addition, the setting of the lever 19 can keep the multi-module puzzle piece flat during transport.

[0033] In this embodiment, preferably, support legs 2 are welded to the four corners of the bottom of the workbench 1, and a power source for driving the glue-applying roller 15 is provided on the mounting column 4 on one side. The power source can be an external servo motor for power output, or a manual crank for power output. It should be noted that it provides a robust gravity-supported base and a flexibly configurable power input module; it is compatible with both electric and manual dual-mode drives, broadening the applicable scenarios of the equipment, from portable operation in environments without electricity to automated operation on factory assembly lines, thereby enhancing the breadth of commercial applications of the system.

[0034] The specific operational procedures for this application are as follows: Pour the prepared special glue into the storage tank 3 on the workbench 1, ensuring that the liquid level covers the lower end face of the coating roller 15, so that the coating roller 15 is in an effective wetted state; confirm that the adjusting lever 19 is in the working release position, so that the elastic force of the adaptive spring 13 can be naturally transmitted to the adjusting block 7, ensuring that the pressure roller 16 and the coating roller 15 are in the initial micro-contact or preset gap state; start the external servo motor or manually turn the crank handle, and the power source drives the coating roller 15 to rotate at a set speed at a uniform speed, and the glue forms a uniform liquid film through surface adsorption; The operator or the preceding conveyor belt lays the puzzle piece flat on the front feed plate 21. The puzzle piece is smoothly pushed into the interlocking gap between the glue applicator roller 15 and the pressure roller 16 along the front edge of the feed plate 21. Utilizing the active rotational friction of the lower glue applicator roller 15, the puzzle piece is automatically rolled between the glue applicator roller 15 and the pressure roller 16. When the puzzle piece enters between the glue applicator roller 15 and the pressure roller 16, the thickness of the puzzle piece pushes the pressure roller 16 upwards, causing the adjusting blocks 7 on both sides to overcome the pressure of the adaptive spring 13 and slide vertically upwards along the main guide plate 9 and the auxiliary guide plate 8 in the mounting groove 5. At the moment the adjusting blocks 7 rise, the teeth 10 on the side of the main guide plate 9 drive the gear 12 to rotate. Due to the rigid interlocking of the synchronous shaft 17, even if the puzzle piece is biased to one side... As the material is fed in, the adjusting blocks 7 on both sides are forced to rise with an absolutely consistent displacement, ensuring that the covering roller 16 remains absolutely horizontal to prevent jamming. Under the continuous reaction force of the adaptive spring 13, the covering roller 16 applies a constant, flexible downward pressure to the puzzle, causing the bottom surface of the puzzle to fit tightly against the glue-applying roller 15 below, completing the uniform forced transfer and flattening of the glue. As the glue-applying roller 15 and the covering roller 16 continue to rotate, the coated puzzle substrate smoothly transitions and disengages from the interlocking area. The substrate enters the discharge plate 22 at the rear end, where it is collected by the operator or transported by the assembly line to the drying station. After the puzzle is completely removed, the adaptive spring 13 releases its potential energy, simultaneously pressing the adjusting blocks 7 on both sides back to their initial positions, ready for the next coating. If a puzzle piece gets stuck during operation, the operator can pull the adjustment lever 19 upwards. The adjustment lever 19, through the crank lever 18, forcibly overcomes the pressure of the adaptive spring 13, raising the adjustment blocks 7 on both sides along with the pressure roller 16 simultaneously, instantly widening the gap between the glue roller 15 and the pressure roller 16. The obstruction is removed, the machine is stopped, and the storage tank 3 and the surfaces of the glue roller 15 and the pressure roller 16 are cleaned. The adjustment lever 19 can also be set to keep the multi-module puzzle pieces flat during transport. That is, when the machine does not need to be stopped, the adjustment lever 19 can also adjust the flatness of the puzzle pieces to maintain the stability of the puzzle pieces during transport.

[0035] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A jigsaw puzzle coating structure characterized by: The system includes a workbench (1), on which mounting columns (4) are fixedly installed on both sides of the upper part of the workbench (1). A glue-applying roller (15) is installed between the two mounting columns (4) through a first connecting shaft (14). An adjusting block (7) is installed inside the two mounting columns (4) through an adaptive spring (13). A pressure roller (16) is installed between the two adjusting blocks (7) through another first connecting shaft (14). A linkage mechanism for synchronously adjusting the height of the pressure roller (16) is also provided between the two mounting columns (4).

2. A jigsaw puzzle coating structure according to claim 1, wherein: The upper part of the workbench (1) is provided with a storage tank (3) for storing glue. The glue-applying roller (15) is located on the upper part of the storage tank (3), and the lower end face of the glue-applying roller (15) is below the upper end face of the storage tank (3).

3. A jigsaw puzzle coating structure according to claim 1, wherein: The mounting post (4) has an internal mounting groove (5) for limiting the adjusting block (7), and a gear groove (6) is provided inside the mounting post (4). The gear groove (6) is located on the upper side of the mounting groove (5), and the gear groove (6) and the mounting groove (5) are connected.

4. A jigsaw puzzle coating structure according to claim 3, wherein: The adjusting block (7) is movably located inside the mounting groove (5). A main guide plate (9) and a secondary guide plate (8) are respectively provided on both sides of the adjusting block (7). The main guide plate (9) and the secondary guide plate (8) are respectively attached to the two inner walls of the mounting groove (5).

5. A jigsaw puzzle coating structure according to claim 4, wherein: A gear (12) is movably mounted inside the gear groove (6) via a second connecting shaft (11). The gear (12) is keyed to the second connecting shaft (11). A number of teeth (10) are fixedly provided on one side of the main guide plate (9). The gear (12) meshes with the teeth (10).

6. A jigsaw puzzle coating structure according to claim 5, wherein: A synchronous shaft (17) is connected between the second connecting shafts (11) on both sides. The gear (12), the second connecting shaft (11) and the synchronous shaft (17) together form a linkage mechanism.

7. A jigsaw puzzle coating structure according to claim 6, wherein: The adaptive spring (13) is disposed inside the mounting groove (5). The upper end of the mounting column (4) is fitted with a cover plate (20) by a fixing bolt (23). The two ends of the adaptive spring (13) are respectively fixedly connected to the lower surface of the cover plate (20) and the upper surface of the adjusting block (7).

8. The puzzle coating structure of claim 1, wherein: A feeding plate (21) and a discharging plate (22) are fixedly arranged between the two mounting columns (4). The feeding plate (21) and the discharging plate (22) are respectively arranged on both sides of the coating roller (15). The feeding plate (21) and the discharging plate (22) are arranged on the upper part of the workbench (1).

9. The puzzle coating structure of claim 1, wherein: A crank rod (18) is movably connected to one side of the two adjustment blocks (7), and an adjustment lever (19) is movably installed between the two crank rods (18).

10. The jigsaw puzzle coating structure of claim 1, wherein: Support legs (2) are welded to the four corners of the bottom of the workbench (1), and a power source for driving the glue-applying roller (15) is provided on the mounting column (4) on one side.

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