A kind of paperboard hot-pressing mechanism for preventing edge lifting

Abstract

The utility model relates to paperboard hot pressing equipment technical field provides a kind of anti-upwarping paperboard hot pressing laminating mechanism, including hot press and its inside workstation;The top of the hot press is equipped with lifting platform and its lower end hot press plate, and the workstation is located just below the hot press plate;The inside of the hot press is equipped with shaping structure, including fixed bracket and the board body of workstation one side extension;The side of the fixed bracket is equipped with fixed plate, and it is covered in the upper side of the extension board body of workstation, and shaping passage is formed between the two;The lower side of the fixed plate is equipped with the sliding plate that can move horizontally, and the extendable shaping passage is formed between the sliding plate and the extension board body of workstation one side;The two sides of the hot press are equipped with pushing mechanism, including transmission belt and its inside pushing plate. By setting the extendable shaping passage on the extension board of workstation, the inside of shaping passage is pushed into shaping by pushing mechanism first time after paperboard hot pressing, to avoid that paperboard is affected by stress and produces warping deformation.

Description

Technical Field

[0001] This utility model relates to the field of cardboard hot pressing equipment, and more specifically, to a cardboard hot pressing and bonding mechanism for preventing edge curling. Background Technology

[0002] Paperboard is a rigid or semi-rigid board material formed by laminating multiple layers of paper or pulp fibers under heat. It is widely used in packaging, construction, and decoration. In the paperboard production process, heat lamination is a key step, bonding the layers together to form a flat, sheet-like structure.

[0003] However, in the existing technology, cardboard is prone to warping and deformation after hot pressing due to the release of internal stress. This is mainly due to uneven heating of the material during hot pressing and uneven stress distribution after cooling. Warping and deformation will cause the cardboard surface to be uneven, affecting subsequent processing and use, and reducing product quality.

[0004] Currently, methods to solve the warping problem include extending the holding time, using cooling plates, or subsequent correction processes, but these methods are inefficient, costly, and have limited effectiveness.

[0005] To address the aforementioned issues, this application proposes a heat-pressing bonding mechanism for preventing edge warping of cardboard. Utility Model Content

[0006] The purpose of this utility model is to provide a heat-pressing and bonding mechanism for anti-warping cardboard, which solves the problem of easy warping and deformation of cardboard during heat pressing in the prior art.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] A heat-pressing and laminating mechanism for preventing edge warping of cardboard includes a heat press and its internal worktable;

[0009] The hot press is equipped with a lifting platform at the top and a hot press plate at its lower end, and the worktable is located directly below the hot press plate;

[0010] The hot press has an internal fixed structure, including a fixed frame and a plate extending from one side of the worktable;

[0011] A fixing plate is provided on one side of the fixing frame, which covers the upper part of the extension plate on one side of the workbench, and a shaping channel is formed between the two.

[0012] Below the fixed plate is a slide plate that can move laterally, and an extendable shaping channel is formed between the slide plate and the extension plate on one side of the workbench.

[0013] The hot press is equipped with a pushing mechanism on both sides, including a transmission belt and a pushing plate on its inner side.

[0014] Preferably, the two ends of the fixing frame are fixedly installed on the left and right sides of the hot press, and a square groove is provided on one side of the fixing frame, corresponding to the side stop above the sliding plate.

[0015] Preferably, a fixing cylinder is provided on the other side of the fixing frame, and an electric telescopic device is installed inside the fixing cylinder, with the movable end fixedly connected to the side guard.

[0016] Preferably, a guide edge is provided at the junction of the lower end of the side guard and the front end of the slide plate to guide the cardboard into the shaping channel.

[0017] Preferably, the transmission belt is rotatably installed in the cavity between the workbench and the left and right inner walls of the hot press, and is driven by a rotating gear rotatably installed inside one end of the hot press to perform closed-loop motion.

[0018] Preferably, the lower surface of the pusher plate is in sliding contact with the upper surface of the worktable, and the upper end surface of the pusher plate is located below the bottom surface of the fixed frame.

[0019] Preferably, a slot is provided below the connection end between the pusher plate and the transmission belt.

[0020] The beneficial effects of this utility model are:

[0021] 1. This utility model sets a shaping channel on one side of the hot pressing working area of ​​the workbench. The hot-pressed cardboard can be immediately pushed into the shaping channel. By utilizing the constraint between the fixed plate and the extension plate of the workbench, the warping of the cardboard caused by the release of internal stress is effectively suppressed, thereby improving the flatness and quality of the cardboard.

[0022] 2. The shaping channel of this utility model is adjustable. By moving the slide plate laterally, it can adapt to cardboard of different sizes. It can push the hot-pressed cardboard into the shaping channel in time, reduce the exposure time of the cardboard in the open space, prevent deformation caused by uneven cooling, and at the same time, the automated operation reduces manual intervention and optimizes the production process. Attached Figure Description

[0023] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the hot press of this utility model;

[0026] Figure 3 This is a schematic diagram of the combined structure of the slide plate and pressure plate of this utility model;

[0027] Figure 4 This is a schematic diagram of the combined structure of the material pushing mechanism and the hot press of this utility model;

[0028] Figure 5 This is a schematic diagram of the feeding mechanism of this utility model;

[0029] The attached diagram lists the components represented by each number as follows:

[0030] In the diagram: 1. Hot press; 11. Workbench; 12. Lifting platform; 121. Hot press plate; 13. Fixed frame; 131. Fixed plate; 132. Slide plate; 1321. Side guard; 13211. Guide edge; 133. Fixed cylinder; 1331. Electric telescopic device; 14. Transmission belt; 141. Pusher plate; 1411. Empty trough. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "opening", "top and bottom", "thickness", "top", "middle", "length", "inner" and "around" indicate the orientation or positional relationship only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] A heat-pressing bonding mechanism for preventing warping of cardboard is provided to prevent cardboard deformation during heat pressing. By setting a sliding slide plate 132 above the extension plate of the worktable 11, an extendable shaping channel is formed. Combined with the pusher mechanism to push the cardboard, the cardboard can be pushed into the shaping channel for shaping immediately after heat pressing, thereby avoiding warping deformation of the cardboard due to stress.

[0034] In some embodiments, the specific structure of the anti-warping cardboard heat-pressing bonding mechanism is as follows: Figure 1-5 As shown, it includes a hot press 1 and its internal hot pressing mechanism, adjustable shaping structure and pushing mechanism;

[0035] Hot press 1, including worktable 11;

[0036] The hot pressing mechanism includes a lifting platform 12 and a hot pressing plate 121 at its lower end. The lifting platform 12 is installed on the top of the hot press 1.

[0037] The adjustable shaping structure includes a worktable 11 and a fixed frame 13;

[0038] A plate extends from one side of the workbench 11, located directly below the fixed frame 13;

[0039] The fixed frame 13 has a fixed plate 131 fixedly installed on one side, which covers the extension plate of the workbench 11;

[0040] Among them, a sliding plate 132 is movably installed at the lower end of the fixed plate 131, and slides through a telescopic mechanism installed on one side of the fixed frame 13.

[0041] It should be noted that a shaping channel is formed between the slide plate 132 and the extension plate of the worktable 11, and its height and width can be adjusted by replacing the slide plate 132 according to the thickness of the cardboard.

[0042] The pushing mechanism includes a transmission belt 14, which is rotatably installed on the left and right inner sides of the hot press 1. A pushing plate 141 is fixedly installed on the inner side of the worktable 11, with one end extending into the top of the worktable 11.

[0043] It should be noted that during hot pressing, the pusher plate 141 is hidden in the two ends of the worktable 11 and can pass through the shaping channel between the slide plate 132 and the extension plate of the worktable 11.

[0044] Understandably, the sliding docking of the sliding plate 132 with the hot press plate 121, combined with the pushing force of the push plate 141, can promptly send the cardboard into the interior of the shaping channel after the cardboard is hot-pressed, thereby achieving the effect of shaping and preventing warping by reducing the exposure time of the cardboard in the open space after hot pressing.

[0045] like Figure 2 and Figure 3 As shown, one end of the slide plate 132 is fixedly installed with an upwardly extending side guard 1321, which can be stored inside the square groove on one side of the fixing frame 13.

[0046] Among them, an electric telescopic device 1331 is installed on the other side of the fixed frame 13 via a fixed cylinder 133. The movable end of the electric telescopic device 1331 is fixedly connected to the side block 1321 and is used to drive the slide plate 132 to slide in and out of the hot pressing area above the workbench 11.

[0047] It should be noted that the upper height of the side guard 1321 is lower than the height of the interface between the hot press plate 121 and the lifting platform 12. In other words, the side guard 1321 can be moved to fit against the side of the hot press plate 121, thereby minimizing the distance between the shaping channel entrance and the cardboard.

[0048] Furthermore, the lower end of the side guard 1321 is machined to form a guide edge 13211, which is used to guide the cardboard in to prevent jamming.

[0049] like Figure 4 and Figure 5 As shown, grooves are provided between the two sides of the workbench 11 and the inner walls of the two sides of the hot press 1 for installing the transmission belt 14.

[0050] The lower surface of the pusher plate 141 is attached to the upper surface of the worktable 11.

[0051] Furthermore, a slot 1411 is provided below the connection end of the pusher plate 141 and the transmission belt 14 to avoid the exposed part of the rotating gears that are rotatably installed inside both ends of the transmission belt 14.

[0052] It should be noted that a rotary motor is installed at one end of the hot press 1, and a rotary gear is fixedly installed at one end of its output shaft, which meshes with the inner side of the transmission belt 14 to control the pushing motion of the transmission belt 14.

[0053] A disc is fixed to the outer side of one end of the rotating gear to block the inner side of the transmission belt 14 and prevent it from disengaging.

[0054] In some publicly available information, the specific usage method of the anti-warping cardboard heat-pressing bonding mechanism is as follows:

[0055] S1. The cardboard is placed above the workbench 11 by the transfer mechanism of the production line or manually. Then the lifting platform 12 descends and the cardboard is hot-pressed by the hot pressing plate 121.

[0056] S2. After hot pressing, the hot press plate 121 stops, and the side block 1321 is pushed by the electric telescopic device 1331, so that the side block 1321 moves closer to the hot press plate 121 and forms a fit.

[0057] S3. Start the rotary motor at one end of the hot press 1. The rotary gear installed on its output shaft drives the transmission belt 14 to rotate. Then, the pusher plate 141 pushes the cardboard into the shaping channel between the slide plate 132 and the worktable 11 until it is removed.

[0058] S4. After the cardboard has fully entered the shaping channel, the lifting platform 12 moves upward to avoid exposing the cardboard to the open space and promote its shaping.

[0059] S5. The side guard 1321 is retracted into the square groove opened on one side of the fixed frame 13 by the electric telescopic device 1331, and then the subsequent hot pressing operation is carried out.

[0060] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A mechanism for hot press bonding of edge-warping-proof paperboard, characterized by: Includes a hot press (1) and its internal worktable (11); The hot press (1) is provided with a lifting platform (12) at the top and a hot press plate (121) at its lower end, and the worktable (11) is located directly below the hot press plate (121); The hot press (1) has a fixed structure inside, including a fixed frame (13) and a plate extending from one side of the worktable (11); The fixing frame (13) has a fixing plate (131) on one side, which covers the upper part of the extension plate on one side of the workbench (11), and a shaping channel is formed between the two. Below the fixed plate (131) is a slide plate (132) that can move laterally, and an extendable shaping channel is formed between the slide plate (132) and the extension plate on one side of the workbench (11). The hot press (1) is provided with a pushing mechanism on both sides, including a transmission belt (14) and a pushing plate (141) on its inner side.

2. The mechanism for hot bar bonding of edge-warping resistant paperboard according to claim 1, characterized in that: The two ends of the fixed frame (13) are fixedly installed on the left and right sides of the hot press (1). A square groove is provided on one side of the fixed frame (13) to correspond to the side block (1321) above the sliding plate (132).

3. The mechanism for hot bar bonding of edge-warping resistant paperboard according to claim 2, characterized in that: The other side of the fixed frame (13) is provided with a fixed cylinder (133), and an electric telescopic device (1331) is installed inside the fixed cylinder (133), with the movable end fixedly connected to the side guard (1321).

4. The mechanism for hot pressing of the edge-warping prevention paperboard according to claim 3, characterized in that: The lower end of the side guard (1321) is provided with a guide edge (13211) at the junction with the front end of the slide plate (132) to guide the cardboard into the shaping channel.

5. The anti-warping cardboard hot-pressing bonding mechanism according to claim 1, characterized in that: The transmission belt (14) is rotatably installed in the cavity between the workbench (11) and the left and right inner walls of the hot press (1), and is driven to perform closed-loop motion by a rotating gear rotatably installed inside one end of the hot press (1).

6. The mechanism for hot bar bonding of edge-warping resistant paperboard according to claim 1, characterized in that: The lower surface of the pusher plate (141) slides in contact with the upper surface of the worktable (11), and the upper end face of the pusher plate (141) is located below the bottom surface of the fixing frame (13).

7. The mechanism for hot bar bonding of edge-warping resistant paperboard according to claim 1, characterized in that: A slot (1411) is provided below the connection end of the pusher plate (141) and the transmission belt (14).

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