Pressing device for plywood

Abstract

The utility model discloses a plywood pressing device, and belongs to the technical field of wood processing. The device comprises a pre-pressing assembly and a pressing and curing assembly, the pre-pressing assembly comprises a base, a liftable pressing table and a conveying unit, and the pressing table is arranged opposite to the base so as to pre-press plywood located on the base; the conveying unit comprises a groove and a movable conveying belt, the conveying belt is embedded in the groove and slidably connected with the groove, the conveying belt abuts against the plywood, and the conveying belt can drive the plywood to move relatively; the pressing and curing assembly comprises a compression frame and a liftable compression head, the compression head is slidably clamped in the compression frame, the compression frame is arranged opposite to the base so as to store the plywood from the conveying belt, and the compression head can press and cure the multiple plywood stored in the compression frame at a time. The plywood can be transferred from a pre-pressing device to a final pressing and curing device, and the quality of the plywood is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of wood processing, in particular to a pressing device for plywood. Background Art

[0002] Plywood is a composite board made by bonding thin wood slices with an adhesive. The process of making plywood involves arranging the thin wood slices in layers, then using glue to bond them together, and subjecting them to pressure and heat treatment to ensure firm bonding.

[0003] Existing plywood usually needs to be pre-pressed before pressing and curing. The existing pre-pressing process and the pressing and curing process are separated from each other. During the process of transporting plywood, it is easy to damage the plywood and seriously reduce the production efficiency of plywood. Summary of the Utility Model

[0004] In view of this, it is necessary to provide a pressing device for plywood to solve the problem that the existing pre-pressing and curing processes of plywood are separated from each other.

[0005] The utility model provides a pressing device for plywood, comprising:

[0006] A pre-pressing assembly, the pre-pressing assembly includes a base, a liftable pressing table and a transmission unit. The pressing table is arranged opposite to the base for pre-pressing the plywood located on the base. The transmission unit includes a groove and a movable conveyor belt. The conveyor belt is embedded in the groove and is slidably connected with the groove. The conveyor belt abuts against the plywood, and the conveyor belt can drive the plywood to move relatively.

[0007] A pressing and curing assembly, the pressing and curing assembly includes a compression frame and a liftable compression head. The compression head is slidably clamped in the compression frame. The compression frame is arranged opposite to the base for receiving the plywood from the conveyor belt. The compression head can press and cure multiple plywood stored in the compression frame at one time.

[0008] Further, the transmission unit further includes at least two support rollers. The two support rollers are respectively arranged at both ends of the base. The conveyor belt is sleeved on the support rollers. A tensioning unit is arranged between at least one support roller and the frame. The tensioning unit can automatically adjust the tension degree of the conveyor belt.

[0009] Further, the surface of the conveyor belt is provided with acting teeth for abutting against the plywood. The acting teeth can drive the plywood to move relatively.

[0010] Further, limiting plates are provided on both sides of the base. A limiting space for clamping plywood is formed between the two limiting plates, and the pressing table is adapted to the limiting space.

[0011] Further, the pressing and curing assembly further includes a first driving unit. The first driving unit includes a first driving member, and both ends of the first driving member are respectively connected to the frame and the compression head for pressing and curing multiple plywood boards.

[0012] Further, the compression frame includes a frame body and a top plate. The top plate is fixedly connected to the frame body. A pressing space is formed in the frame body. The compression head and the plywood board are both located in the pressing space, and the plywood board is arranged between the top plate and the compression sliding head.

[0013] Further, the pre-pressing assembly further includes a second driving unit. The second driving unit includes a plurality of second driving members, and the plurality of second driving members respectively act on the pressing table.

[0014] Further, a heating member is provided in the pressing table, and the heating member can heat the plywood board.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] (1) For a plywood pressing device of the present utility model, a pre-pressing assembly is provided. The pre-pressing assembly includes a base, a liftable pressing table and a transmission unit. The pressing table is arranged opposite to the base, and a pre-pressing space is formed between the two. The pressing table moves relative to the base, and pre-pressing treatment can be performed on the plywood board in the pre-pressing space. The transmission unit includes a groove and a movable conveyor belt. The groove is opened in the base, the conveyor belt is embedded in the groove and is slidably connected to the groove, and the conveyor belt abuts against the plywood board. The conveyor belt can drive the pre-pressed plywood board to move relative to the pressing and curing assembly, and the conveyor belt can transfer the plywood board from the pre-pressing device to the final pressing and curing device, reducing potential damage to the plywood board caused by manual operation and ensuring the quality of the plywood board.

[0017] (2) For a plywood pressing device of the present utility model, a pressing and curing assembly is provided. The pressing and curing assembly includes a compression frame and a liftable compression head. The compression head is slidably clamped in the compression frame. The compression frame is arranged opposite to the base. The conveyor belt can sequentially convey multiple pre-pressed plywood boards into the compression frame. The compression frame houses the plywood boards so that they are stacked up and down. The compression head moves relative to the plywood boards stored in the compression frame, and multiple groups of plywood boards can be pressed and held for a certain period of time by a determined press, completing the deep curing of the plywood board and improving the production efficiency of the plywood board. Description of the Drawings

[0018] The accompanying drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0019] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0020] Figure 2 is a schematic connection structure diagram of the transmission unit and the pressing and curing assembly in the present utility model;

[0021] Figure 3 is a schematic structural diagram of the transmission unit in the present utility model;

[0022] Figure 4 is a schematic structural diagram of the pressing and curing assembly in the present utility model;

[0023] Figure 5 is a schematic connection structure diagram of the second driving unit and the pressing table in the present utility model.

[0024] In the figure, 100, pre-pressing assembly; 110, base; 111, limiting plate; 120, pressing table; 130, transmission unit; 131, groove; 132, conveyor belt; 133, support roller; 140, second driving unit; 141, second driving member;

[0025] 200, pressing and curing assembly; 210, compression frame; 211, frame body; 212, top plate; 220, compression head; 230, first driving unit; 231, first driving member. Detailed Embodiment

[0026] The following will specifically describe the preferred embodiments of the present utility model with reference to the accompanying drawings. Among them, the accompanying drawings form a part of this application and are used together with the embodiments of the present utility model to explain the principle of the present utility model, and are not used to limit the scope of the present utility model.

[0027] A pressing device for plywood in this embodiment relates to the technical field of wood processing. A transmission unit 130 is provided. The transmission unit 130 can cooperate with the pre-pressing assembly 100 to pre-press the plywood. The transmission unit 130 can also push the pre-tightened plywood into the pressing and curing assembly 200 to complete the deep pressing and curing of the plywood, which can organically connect the pre-pressing and pressing and curing processes and improve the production efficiency of plywood.

[0028] Please refer to Figures 1 to 5, A pressing device for plywood in this embodiment includes a pre-pressing assembly 100 and a pressing and curing assembly 200. The pre-pressing assembly 100 can perform pre-pressing on the plywood and input the plywood into the pressing and curing assembly 200. The pressing and curing assembly 200 can finally press and cure multiple plywood at one time.

[0029] The pre-pressing assembly 100 includes a base 110, a liftable pressing table 120, and a transmission unit 130. The pressing table 120 is disposed opposite to the base 110, and a pre-pressing space is formed therebetween. The pressing table 120 moves relative to the base 110, and can perform pre-pressing on the plywood in the pre-pressing space. The transmission unit 130 includes a groove 131 and a movable conveyor belt 132. The groove 131 is formed in the base 110, and the conveyor belt 132 is embedded in the groove 131 and slidably connected to the groove 131. The conveyor belt 132 abuts against the plywood. The conveyor belt can drive the pre-pressed plywood to move relative to the pressing and curing assembly 200, and the conveyor belt 132 can transfer the plywood from the pre-pressing device to the final pressing and curing device, reducing potential damage to the plywood caused by manual operation and ensuring the quality of the plywood.

[0030] The pressing and curing assembly 200 includes a compression frame 210 and a liftable compression head 220. The compression head 220 is slidably clamped in the compression frame 210. The compression frame 210 is disposed opposite to the base 110. The conveyor belt 132 can sequentially convey multiple pre-pressed plywood into the compression frame 210. The compression frame 210 houses the plywood so that they are stacked one above the other. The compression head 220 moves relative to the plywood stored in the compression frame 210, and can press multiple groups of plywood with a determined press and hold for a period of time to complete the deep curing of the plywood and improve the production efficiency of the plywood.

[0031] In some embodiments, please refer to Figure 3 , The transmission unit 130 further includes at least two support rollers 133. The two support rollers 133 are respectively disposed at two ends of the base 110. The conveyor belt 132 is sleeved on the support rollers 133. The support rollers 133 can effectively support the conveyor belt 132, maintain the stability of the plywood during transmission, reduce the shaking and swinging of the plywood during transmission, and thus reduce the risk of damage.

[0032] A tensioning unit is provided between at least one support roller 133 and the frame. This tensioning unit can automatically adjust the tension of the conveyor belt 132. The tensioning unit has a tensioned state and a relaxed state. In the tensioned state, the pressing table 120 presses against the base 110, the conveyor belt 132 is bent relatively and pressed into the interior of the groove 131, and the plywood loses the obstruction from the conveyor belt 132 and can better fit the base 110 to realize the shaping and fixing of the plywood.

[0033] In the relaxed state, the pressing table 120 disengages from the plywood, and the tensioning unit rebounds under the action of the tensioning force, causing the conveyor belt 132 to be straightened and moderately lift the plywood, reducing the friction between the plywood and the seat body, thereby reducing the risk of damage to the plywood during transmission, facilitating the relative movement of the plywood with respect to the compression frame 210, and improving the transmission efficiency.

[0034] In the specific implementation process, the tensioning unit includes a spring, and the two ends of the spring are respectively connected to the frame and the rotating shaft of the support roller 133. The spring can push one support roller 133 to move relative to the other support roller 133, thereby realizing the corresponding tensioning function. At the same time, the spring can be replaced with a pneumatic or hydraulic device, and the tensioning force can be adjusted by adjusting the pressure of the gas or liquid.

[0035] In some embodiments, please continue to refer to Figure 3 , the surface of the conveyor belt 132 is provided with acting teeth for abutting against the plywood. The acting teeth can provide additional frictional force for the plywood, ensuring that the plywood can stably contact the conveyor belt 132 during transmission and can be effectively driven to move, avoiding the occurrence of sliding and skidding phenomena.

[0036] In some embodiments, please refer to Figure 2 , both sides of the base 110 are provided with limiting plates 111, and a limiting space for clamping the plywood is formed between the two limiting plates 111. The pressing table 120 is adapted to the limiting space. The limiting plates 111 and the limiting space can accurately position the plywood, enabling it to obtain an accurate position on the pressing table 120, which helps to ensure that each plywood can be pressed with a consistent pressure during the pressing process, thereby improving the consistency and quality of the product. The limiting plates 111 can also effectively prevent the lateral movement of the plywood during the pressing process. By clamping the plywood through the limiting space, it can be ensured that the plywood maintains a stable position on the pressing table 120, without lateral sliding or offset, thereby reducing the errors and damage risks during the production process.

[0037] In some embodiments, please refer to Figure 1 and Figure 4 , the pressing and curing assembly 200 further includes a first driving unit 230. The first driving unit 230 includes a first driving member 231. The two ends of the first driving member 231 are respectively connected to the frame and the compression head 220. The first driving member 231 is specifically a hydraulic cylinder. The hydraulic cylinder can drive the compression head 220 to simultaneously process multiple plywoods and apply pressure to the plywoods, thereby completing the curing process of multiple plywoods at the same time, improving the production efficiency. Ensuring that each plywood is subjected to the same pressure and curing conditions, thereby ensuring the consistency of the curing effects of multiple plywoods. Helping to reduce the product quality fluctuations caused by production batch differences, and improving the consistency and stability of the product.

[0038] In some embodiments, referring to Figure 4 , the compression frame 210 includes a frame body 211 and a top plate 212. The top plate 212 is fixedly connected to the frame body 211. A compression space is formed in the frame body 211. Both the compression head 220 and the plywood are located in the compression space. The plywood is disposed between the top plate 212 and the compression slider head.

[0039] The compression space formed in the frame body 211 provides a stable curing environment. In this space, both the compression head 220 and the plywood can be accurately positioned and fixed, ensuring stability and consistency during the curing process. The top plate 212 is fixedly connected to the frame body 211, further enhancing the structural stability of the entire compression frame 210. The plywood is disposed between the top plate 212 and the compression slider head, while the compression head 220 is located in the compression space in the frame body 211. When the compression head 220 applies pressure, the top plate 212 serves as a supporting surface, and the plywood is clamped between the top plate 212 and the compression head 220, thereby achieving an effective compaction effect.

[0040] In some embodiments, referring to Figure 5 , the pre-compression assembly 100 further includes a second driving unit 140. The first driving unit 230 includes a plurality of second driving members 141. The second driving members 141 are a plurality of cylinders, and the plurality of second driving members 141 respectively act on the pressing table 120.

[0041] The combined action of the plurality of second driving members 141 can achieve multi-point and multi-level simultaneous pre-compression, greatly improving the pre-compression efficiency. By simultaneously pre-compressing multiple parts of the plywood, the pre-compression time can be shortened, the production rhythm can be accelerated, and the production efficiency can be improved.

[0042] In the specific implementation process, the pre-compression assembly 100 further includes an air compressor. One air compressor supplies air to the plurality of second driving members 141 simultaneously, providing energy for the movement of the second driving members 141.

[0043] It should be specifically noted that: a heating element is provided in the pressing table 120. The heating element can heat the plywood. The heating element can increase the temperature of the plywood surface, thereby promoting the curing process of the glue. During the pressing process, by heating the plywood, the reaction speed of the glue can be accelerated, enabling the glue to cure faster, thereby shortening the curing time and improving the production efficiency. At the same time, by heating the plywood, the glue can be more evenly distributed on the plywood surface, and the full penetration and bonding of the glue with the wood chips can be promoted, which helps to improve the quality of the plywood, enhance its tensile strength and shear strength, and improve the quality and stability of the product.

[0044] Workflow: First, start the second driving member 141 to make the pressing table 120 intermittently press the base 110. Then, start the conveyor belt 132 and sequentially place plywood on the base 110. The conveyor belt 132 rotates intermittently, driving the plywood to move intermittently, and sequentially conveying multiple pre-pressed plywood into the compression frame 210. Finally, the compression head 220 simultaneously presses multiple plywood under the action of the first driving member 231 to complete the pressing and curing of the plywood for you.

[0045] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present utility model should be covered by the present utility model.

Claims

1. A plywood pressing device, characterized in that: include: A pre-pressing assembly, the pre-pressing assembly comprises a base, a press table which can be raised and lowered, and a transmission unit, the press table being arranged relative to the base for pre-pressing the plywood on the base; the transmission unit comprising a groove and a movable conveyor belt, the conveyor belt being embedded in the groove and slidably connected with the groove, the conveyor belt being in contact with the plywood, and the conveyor belt being able to drive the plywood to move relatively; A compression and curing assembly, the compression and curing assembly includes a compression frame and a liftable compression head, the compression head is slidably engaged in the compression frame, the compression frame is arranged relative to the base to receive the plywood from the conveyor belt, and the compression head can compress and cure multiple plywood stored in the compression frame at one time.

2. A plywood pressing device according to claim 1, characterized in that: The transmission unit also includes at least two supporting rollers, which are respectively arranged at the two ends of the base, and the conveyor belt is sleeved on the supporting rollers. A tensioning unit is provided between at least one of the supporting rollers and the frame, and the tensioning unit can automatically adjust the tension of the conveyor belt.

3. The plywood pressing device according to claim 1, characterized in that: The surface of the conveyor belt is provided with action teeth for contacting with the plywood, and the action teeth can drive the plywood to move relatively.

4. The plywood pressing device according to claim 1, characterized in that: Limiting plates are arranged on both sides of the base, and a limiting space for clamping the plywood is formed between the two limiting plates, and the pressing platform is adapted to the limiting space.

5. The plywood pressing device according to claim 1, characterized in that: The compression and curing assembly further comprises a first driving unit, wherein the first driving unit comprises a first driving member, and both ends of the first driving member are respectively connected to the frame and the compression head for compressing and curing a plurality of plywood boards.

6. The plywood pressing device according to claim 1, characterized in that: The compression frame includes a frame body and a top plate, wherein the top plate is fixedly connected to the frame body, a compression space is formed in the frame body, the compression head and the plywood are both located in the compression space, and the plywood is arranged between the top plate and the compression slider.

7. The plywood pressing device according to claim 1, characterized in that: The pre-pressing assembly further includes a second driving unit, wherein the second driving unit includes a plurality of second driving members, and the plurality of second driving members act on the pressing platform respectively.

8. The plywood pressing device according to claim 1, characterized in that: A heating element is provided in the pressing platform, and the heating element can heat the plywood.

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