Gluing device for plywood production

Abstract

The utility model belongs to the technical field of plate gluing, and particularly relates to a plywood production gluing device which comprises a rack, a lower conveying belt is arranged at the bottom of the inner side of the rack, a middle conveying belt located above the lower conveying belt is arranged on the inner side of the rack, and an upper conveying belt located above the lower conveying belt is arranged at the upper end of the inner side of the rack. A gluing rod is further arranged in the machine frame, the sides, close to the plate feeding side, of the lower conveying belt, the middle conveying belt and the upper conveying belt are distributed in a step shape, and the gluing rod is flush with the middle conveying belt and located on the plate discharging side. It can be understood that the lower conveying belt, the middle conveying belt and the upper conveying belt are arranged to be matched with one another, the gluing rod is arranged at the rear end of the middle conveying belt, glue can be output from the upper portion and the lower portion of the gluing rod, gluing of the upper surface or the lower surface of the plate can be achieved through matching of the multiple parts, and the plate pushing and conveying directions are consistent; and the lower conveying belt, the middle conveying belt and the upper conveying belt are arranged to be step-shaped, so that the gluing work of the plates is also facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of board coating technology, and in particular relates to a plywood production coating device. Background Technology

[0002] Plywood is a three- or multi-layered sheet material made by rotary cutting logs into veneers or slicing timber into thin sheets and then gluing them together with adhesives. It usually uses an odd number of veneer layers and glues the adjacent veneer layers with the fiber directions perpendicular to each other.

[0003] The glue application device in plywood production is one of the key pieces of equipment on the plywood production line. Its main function is to evenly apply glue to the surface of the board so that subsequent bonding and pressing processes can be carried out.

[0004] However, traditional gluing equipment cannot apply glue to different sides without flipping the board. Generally, gluing equipment can only apply glue to one side of the board. However, the top and bottom surfaces of the board after bonding do not need to be glued. Therefore, at least one board needs to be flipped. First, the operation is not convenient. Second, the glued surface may stick to dust and impurities in the air during the flipping process, which will affect the bonding effect.

[0005] To address the aforementioned issues, this application proposes a plywood production gluing apparatus. Utility Model Content

[0006] The purpose of this invention is to provide a glue coating device for plywood production, which solves the problems mentioned in the background art.

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

[0008] This utility model relates to a plywood production gluing device, comprising a frame, a lower conveyor belt disposed at the bottom inner side of the frame, a middle conveyor belt disposed above the lower conveyor belt on the inner side of the frame, an upper conveyor belt disposed above the lower conveyor belt at the upper inner side of the frame, and a gluing rod disposed in the frame. The lower, middle, and upper conveyor belts are arranged in a stepped manner on the side near the board inlet. The gluing rod is flush with the middle conveyor belt and located on the board outlet side. The upper and lower ends of the gluing rod are each provided with an independent glue outlet component.

[0009] Furthermore, a passage space for the sheet material is formed between the lower conveyor belt and the middle conveyor belt, a first motor for driving the lower conveyor belt is provided on the side of the frame, a passage space for the sheet material is also formed between the middle conveyor belt and the upper conveyor belt, and a second motor for driving the upper conveyor belt is provided on the side of the frame.

[0010] Furthermore, the glue applicator has symmetrical glue cavities inside, and the glue cavities are also symmetrical vertically. Several vertically arranged glue inlets are opened side by side on one side of the glue cavity. A glue inlet pipe is opened on the side of the glue applicator, and one end of the glue inlet pipe is connected to the middle of the glue cavity on the side away from the glue inlet.

[0011] Furthermore, the glue applicator rod is fixed at both ends with connectors that communicate with the glue inlet tube.

[0012] Furthermore, a base is provided below the frame, and an electric cylinder is fixed in the base. The output end of the electric cylinder is fixedly installed to the frame.

[0013] Furthermore, several support plates are fixed in the frame, and the support plates are arranged at the upper inner end of the lower conveyor belt, the lower inner end of the upper conveyor belt, and the upper and lower inner ends of the middle conveyor belt.

[0014] Furthermore, a bonding mold is provided on one side of the frame, and a sheet material is placed in the bonding mold.

[0015] This utility model has the following beneficial effects:

[0016] This utility model uses a combination of a lower conveyor belt, a middle conveyor belt, and an upper conveyor belt. The lower and middle conveyor belts are used for limiting and pushing the glue on the upper surface of the board, while the middle and upper conveyor belts are used for limiting and pushing the glue on the lower surface of the board. With the pushing path being the same, the glue application work on two different surfaces is achieved, which has adaptability and practicality.

[0017] This invention, by setting symmetrically distributed glue cavities, glue inlets, and glue inlet pipes, enables glue application to different surfaces of the board without requiring the board to be flipped or rotated, thus facilitating efficient bonding of the board.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0020] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the bottom plate of this utility model when applying adhesive;

[0022] Figure 3for Figure 2 A partial half-section structural diagram from the side view;

[0023] Figure 4 This is a schematic diagram of the structure of the topmost plate of this utility model when applying adhesive;

[0024] Figure 5 This is a structural diagram showing the positional distribution between the frame and the gluing mold after plywood forming;

[0025] Figure 6 This is a schematic diagram of a half-section of the adhesive-coating rod in this utility model;

[0026] The attached diagram lists the components represented by each number as follows:

[0027] In the diagram: 1. Frame; 2. Lower conveyor belt; 3. Middle conveyor belt; 4. Upper conveyor belt; 5. Glue applicator; 6. Glue cavity; 7. Glue applicator port; 8. Glue inlet pipe; 9. Connector; 10. Base; 11. Electric cylinder; 12. Support plate; 13. First motor; 14. Second motor; 15. Gluing mold; 16. Sheet metal. Detailed Implementation

[0028] 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 scope of protection of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are 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.

[0030] Please see Figure 1-6 As shown, this utility model is a plywood production gluing device, including a frame 1, a lower conveyor belt 2 is provided at the bottom of the inner side of the frame 1, a middle conveyor belt 3 is provided on the inner side of the frame 1 above the lower conveyor belt 2, an upper conveyor belt 4 is provided on the upper end of the inner side of the frame 1 above the lower conveyor belt 2, and a gluing rod 5 is also provided in the frame 1. The lower conveyor belt 2, the middle conveyor belt 3, and the upper conveyor belt 4 are arranged in a stepped manner on the side near the board inlet. The gluing rod 5 is flush with the middle conveyor belt 3 and is located on the side of the board outlet. The upper and lower ends of the gluing rod 5 are provided with independent glue outlet components.

[0031] In this embodiment, a passage space for the sheet material 16 is formed between the lower conveyor belt 2 and the middle conveyor belt 3. A first motor 13 for driving the lower conveyor belt 2 is provided on the side of the frame 1. A passage space for the sheet material 16 is also formed between the middle conveyor belt 3 and the upper conveyor belt 4. A second motor 14 for driving the upper conveyor belt 4 is provided on the side of the frame 1. In this embodiment, the middle conveyor belt 3 is a free end. The sheet material is pushed by the drive of the lower conveyor belt 2 or the upper conveyor belt 4, while the middle conveyor belt 3 is rotated. The middle conveyor belt 3 plays a role in limiting and stabilizing the pushing.

[0032] The glue applicator 5 has a symmetrical glue cavity 6 inside, which is also symmetrical vertically. Several vertically arranged glue inlets 7 are arranged side by side on one side of the glue cavity 6. A glue inlet tube 8 is provided on the side of the glue applicator 5. One end of the glue inlet tube 8 is connected to the middle of the glue cavity 6 away from the glue inlet tube 7. In this embodiment, the glue cavity 6 is set to a symmetrical structure both horizontally and vertically, and the glue inlet tube 8 is connected to the glue cavity 6 in the middle. Both of these measures are intended to achieve uniform glue application and avoid the glue channel being too long, which would affect the extrusion effect.

[0033] The glue applicator 5 has connectors 9 fixed at both ends that communicate with the glue inlet pipe 8. In this embodiment, the connectors 9 are externally connected to a glue tank and a pump body to ensure accurate glue supply.

[0034] The frame 1 is provided with a base 10 below it, and an electric cylinder 11 is fixed in the base 10. The output end of the electric cylinder 11 is fixedly installed with the frame 1. In this embodiment, the electric cylinder 11 is mainly used to change the height between the lower conveyor belt 2, the middle conveyor belt 3, the upper conveyor belt 4 and the bonding mold 15, so as to adapt to the bonding work of different thicknesses and quantities of plates. At the same time, it can also drive the bottom of the frame 1 and the bonding mold 15 to facilitate the removal of the plates after bonding.

[0035] The frame 1 is fixed with several support plates 12. The support plates 12 are set at the upper inner end of the lower conveyor belt 2, the lower inner end of the upper conveyor belt 4, and the upper and lower inner ends of the middle conveyor belt 3. In this embodiment, the support plates 12 ensure the reliability of the material when it passes through, and play the roles of support, limit and conveying. The conveying is carried out by a motor and cooperates with the glue application rod 5 to make the glue application more uniform.

[0036] The frame 1 has a gluing mold 15 on one side, and a board 16 is placed in the gluing mold 15. In this embodiment, there are at least three boards 16, which are bonded and pressed together to form a plywood.

[0037] It is understandable that the lower conveyor belt 2, the middle conveyor belt 3, and the upper conveyor belt 4 are set up to cooperate with each other, and the glue applicator 5 is set at the rear end of the middle conveyor belt 3. The glue applicator 5 can dispense glue from both the top and bottom. Through the cooperation of the above-mentioned multiple components, glue can be applied to the upper or lower surface of the board, and the pushing and direction of the board are consistent. The stepped arrangement of the lower conveyor belt 2, the middle conveyor belt 3, and the upper conveyor belt 4 also facilitates the glue application work of the board.

[0038] One specific application of this embodiment is: the connector 9 is externally connected to the pump body or extrusion equipment and the glue tank, for stable injection of glue into the glue-applying rod 5. There are two pump bodies, one of which is connected to the two upper connectors 9 and the other is connected to the two lower connectors 9.

[0039] The top part of the bottom plate is the glue-coating surface. The plate is placed between the lower conveyor belt 2 and the middle conveyor belt 3. At this time, the first motor 13 starts and drives the plate to pass under the glue-coating rod 5. The plate is limited between the lower conveyor belt 2 and the middle conveyor belt 3. The middle conveyor belt 3 rotates with the movement of the plate. During the process of the plate passing through the glue-coating rod 5, the pump body connected to the two connectors 9 below injects the glue inside the glue tank into the glue pipe 8 through the connectors 9. The glue pipe 8 injects into the middle of the glue cavity 6, and then squeezes it out through the multiple glue-coating ports 7 connected to the glue cavity 6. The glue is evenly squeezed onto the upper surface of the plate, and then the plate directly enters the bonding mold 15.

[0040] The bottom part of the topmost plate is coated with glue. The plate is placed between the middle conveyor belt 3 and the upper conveyor belt 4. At this time, the second motor 14 starts and drives the plate to pass over the glue applicator 5. The glue is applied to the bottom surface of the plate through the glue applicator 5. The plate directly enters the bonding mold 15 for bonding and pressing.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., 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, the 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.

[0042] 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 plywood production gluing apparatus, comprising a frame (1), characterized in that: The bottom inner side of the frame (1) is provided with a lower conveyor belt (2), the inner side of the frame (1) is provided with a middle conveyor belt (3) located above the lower conveyor belt (2), the upper inner side of the frame (1) is provided with an upper conveyor belt (4) located above the lower conveyor belt (2), and the frame (1) is also provided with a glue applicator (5). The lower conveyor belt (2), the middle conveyor belt (3), and the upper conveyor belt (4) are arranged in a stepped manner on the side near the inlet plate. The glue applicator (5) is flush with the middle conveyor belt (3) and located on the side of the outlet plate. The upper and lower ends of the glue applicator (5) are provided with independent glue dispensing components.

2. The plywood production gluing device according to claim 1, characterized in that: A passage space for the sheet material (16) is formed between the lower conveyor belt (2) and the middle conveyor belt (3). A first motor (13) for driving the lower conveyor belt (2) is provided on the side of the frame (1). A passage space for the sheet material (16) is also formed between the middle conveyor belt (3) and the upper conveyor belt (4). A second motor (14) for driving the upper conveyor belt (4) is provided on the side of the frame (1).

3. The plywood production gluing device according to claim 1, characterized in that: The glue applicator (5) has symmetrical glue cavities (6) inside. The glue cavities (6) are also symmetrical up and down. Several vertically arranged glue inlets (7) are arranged side by side on one side of the glue cavity (6). A glue inlet pipe (8) is opened on the side of the glue applicator (5). One end of the glue inlet pipe (8) is connected to the middle part of the glue cavity (6) away from the glue inlet (7).

4. The plywood production gluing device according to claim 3, characterized in that: The glue applicator (5) has connectors (9) at both ends that communicate with the glue inlet tube (8).

5. The plywood production gluing device according to claim 1, characterized in that: A base (10) is provided below the frame (1), and an electric cylinder (11) is fixed in the base (10). The output end of the electric cylinder (11) is fixedly installed with the frame (1).

6. The plywood production gluing device according to claim 1, characterized in that: The frame (1) is fixed with several support plates (12), which are located at the upper inner end of the lower conveyor belt (2), the lower inner end of the upper conveyor belt (4), and the upper and lower inner ends of the middle conveyor belt (3).

7. The plywood production gluing device according to claim 1, characterized in that: The frame (1) is provided with a gluing mold (15) on one side, and a board (16) is placed in the gluing mold (15).

Images