Plywood pressing device

Abstract

The utility model relates to the technical field of plywood pressing, in particular to a plywood pressing device which comprises a bottom plate. Two supporting columns are symmetrically installed on the bottom plate, pressing plates are vertically arranged among the four limiting rods, an upper limiting groove is formed in the top of the fixing piece, a lower limiting groove is formed in the bottom of the fixing piece, a spring is arranged in the upper limiting groove, a cavity is formed in each pressing plate, a heating rod is arranged in each cavity, and the heating rods are arranged in the cavities. When a first hydraulic rod is pushed upwards, a pressing plate moves upwards, a spring retracts into an upper limiting groove and a lower limiting groove in the bottom of an upper fixing piece after being pressed, veneers can be pressed together through the pressing plate, the veneers continuously extruded between the pressing plate can be heated through a heating rod, solidification of a veneer adhesive is accelerated, and then the veneers can be heated through a heating rod. According to the plywood press-fit device, the effect of plywood press-fit is achieved through cooperation, multiple pieces of plywood can be pressed at the same time, and compared with a traditional plywood press-fit device, the press-fit effect is better, and the plywood production quality is higher.

Description

Technical Field

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

[0002] Plywood is a board made by stacking, gluing and pressing multiple layers of veneer that is peeled from trees. In order to make the plywood stronger, more bonded and more solid, the number of pressed layers of plywood is usually an odd number. Since the wood grain of each layer of veneer is different, they can restrain each other, and the solid wood board is not easy to curl or deform. After the veneer is glued and stacked, it needs to be pressed to form a whole, and pressing requires a pressing device.

[0003] A patent with announcement number CN 112792932 B discloses a plywood pressing device, including a domain, including a workbench, the workbench is placed on a horizontal plane, the lifting device is installed on the top of the workbench, the pressing device is installed on the top of the workbench, the lifting device is installed in a receiving groove on the workbench and slidably cooperates with the pressing device, and the two lifting frames are driven to rotate by the rotation of the rotating rod, and the two connecting frames are rotated to drive the placement plate to rise and fall on the four positioning rods. The plywood is placed on the placing seat by cooperating with the clamping device to complete the automatic loading operation of the plywood, thereby improving the overall work efficiency and reducing the labor of the operator.

[0004] However, the existing plywood pressing device can only produce a single board at a time and cannot press and produce multiple boards at the same time, resulting in low production efficiency. In addition, the adhesive is not completely solidified during pressing, resulting in cracking of the board. Therefore, a plywood pressing device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and address the problems existing in the prior art, the utility model provides a plywood pressing device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a plywood pressing device described in the utility model comprises a bottom plate; two support columns are symmetrically installed on the bottom plate, a top plate is installed between the top ends of the two support columns, four limit rods are installed under the top plate, limit plates are installed on the four limit rods, the four limit rods are diagonally arranged in a rectangular shape, and pressing plates are vertically arranged between the four limit rods, the pressing plates are arranged in a rectangular shape, and are all located between the limit plates and the top plate, fixing parts are installed at the four diagonal positions of the pressing plates, an upper limit groove is opened on the top of the fixing part, a lower limit groove is opened at the bottom of the fixing part, and a limit plate is set in the upper limit groove A spring is provided, and the upper end of the spring is arranged in a lower limit groove opened at the bottom of the upper fixing part, a limit hole is penetrated on the fixing part, the limit rod is penetrated in the limit hole opened on the fixing part, and the limit rod is located inside the spring, a cavity is provided in the pressing plate, a heating rod is provided in the cavity, a wire is provided on the heating rod, a No. 1 hydraulic cylinder is installed on the bottom plate, a No. 1 hydraulic rod is upwardly provided at the action end of the No. 1 hydraulic cylinder, and the top end of the No. 1 hydraulic rod is installed at the lower part of the bottom pressing plate, so that the plywood pressing effect is achieved and the simultaneous pressing of multiple pieces of plywood is realized. Compared with the traditional plywood pressing device, the pressing effect is better and the plywood production quality is higher.

[0007] Preferably, the pressing plates are parallel to each other, and the thickness of the fixing piece is the same as that of the pressing plates. The spring can be contracted into the upper limit groove and the lower limit groove of the fixing piece. A lower limit groove is also provided at a position of the top plate opposite to the upper limit groove of the top layer. The bottom of the fixing piece at the bottom layer is solid, which achieves the effect of pressing multiple plywood plates at the same time and facilitates the pressing plates to return to their original positions after pressing.

[0008] Preferably, a heating controller is installed on the bottom plate, and the other ends of the wires are connected to the heating controller. A cavity is also provided in the top plate, and a heating rod is provided in the cavity, and a wire is provided on the heating rod, so as to accelerate the solidification of the plywood adhesive and avoid the incomplete solidification of the plywood adhesive affecting the product quality.

[0009] Preferably, a column is vertically installed on the base plate, a T-shaped slide rail is vertically arranged on the column, a slider is clamped on the T-shaped slide rail, a fixing rod is installed on the side of the slider, a pressing plate side is installed on the other end of the fixing rod, a No. 2 hydraulic cylinder is installed on the side of the slider, a No. 2 hydraulic rod is arranged inside the action of the No. 2 hydraulic cylinder, and a scraper is installed on the other end of the No. 2 hydraulic rod, and the purpose of removing the plate is achieved by cooperation, and the wood chips of the pressing device are cleaned, which effectively prevents the wood chips from affecting the product quality.

[0010] Preferably, the fixing rod is perpendicular to the column and parallel to the base plate, and the No. 2 hydraulic cylinder is parallel to the fixing rod, and cooperates to achieve a limiting effect when the scraper moves, preventing the scraper from affecting the normal operation of the pressing device.

[0011] Preferably, the bottom surface of the scraper is parallel to the upper surface of the pressing plate, and the scraper can be moved into the gap between the pressing plates. The working end of the No. 2 hydraulic cylinder is fixed to the fixed rod through a fixed block, which can achieve the purpose of removing wood chips and pushing out the pressed plywood. It is more convenient to use than traditional pressing devices.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model will cause the pressing plate to move upward when the No. 1 hydraulic rod pushes upward, and the fixing part will compress the spring when it moves upward. After being compressed, the spring will shrink into the upper limit groove and the lower limit groove at the bottom of the upper fixing part. With the continuous force of the No. 1 hydraulic rod, the gap between the pressing plates will gradually decrease, and the pressing plate will press the glue-coated and stacked veneers together. The heating rod will heat the veneers continuously squeezed between the pressing plates, thereby accelerating the solidification of the veneer adhesive. The cooperation achieves the effect of pressing the plywood and realizes the simultaneous pressing of multiple pieces of plywood. Compared with traditional plywood pressing devices, the pressing effect is better and the plywood production quality is higher.

[0014] 2. When the utility model presses the plywood, the pressing plate will drive the scraper to move, and the No. 2 hydraulic cylinder controls the extension of the No. 2 hydraulic rod. When the No. 2 hydraulic rod is extended, the scraper will be pushed into the gap between the pressing plates, and the pressed plywood will be pushed out of the gap. At the same time, the scraper will scrape off the wood chips on the surface of the pressing plate, and the purpose of taking the plate is achieved, the wood chips of the pressing device are cleaned, and the influence of wood chips on product quality is effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 is a schematic diagram of the first three-dimensional main structure;

[0017] Figure 2 It is a schematic diagram of the main structure of the press-fit assembly;

[0018] Figure 3 It is a partially cutaway enlarged schematic diagram of the main structure of the spring limit assembly;

[0019] Figure 4 It is a partially cutaway enlarged schematic diagram of the main structure of the push plate assembly;

[0020] Figure 5 It is a partially cutaway enlarged schematic diagram of the main structure of the slider and the T-shaped slide rail;

[0021] Figure 6 This is an enlarged schematic diagram of area A in the partial cross-section enlarged diagram of the main structure of the spring limit assembly.

[0022] In the figure: 1. bottom plate; 2. support column; 3. top plate; 4. limit rod; 5. limit plate; 6. pressing plate; 7. fixing piece; 8. upper limit slot; 9. lower limit slot; 10. spring; 11. heating rod; 12. wire; 13. hydraulic cylinder No. 1; 14. hydraulic rod No. 1; 15. heating controller; 16. column; 17. T-shaped slide rail; 18. slide block; 19. fixing rod; 20. hydraulic cylinder No. 2; 21. hydraulic rod No. 2; 22. scraper; 23. fixing block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6As shown, a plywood pressing device comprises a bottom plate 1; two supporting columns 2 are symmetrically installed on the bottom plate 1, a top plate 3 is installed between the top ends of the two supporting columns 2, four limiting rods 4 are installed under the top plate 3, and limiting plates 5 are installed on the four limiting rods 4, the four limiting rods 4 are arranged diagonally in a rectangular shape, and pressing plates 6 are arranged vertically between the four limiting rods 4, the pressing plates 6 are arranged in a rectangular shape, and are all located between the limiting plates 5 and the top plate 3, and fixing parts 7 are installed at four diagonal positions of the pressing plates 6, an upper limit groove 8 is opened on the top of the fixing part 7, a lower limit groove 9 is opened at the bottom of the fixing part 7, a spring 10 is arranged in the upper limit groove 8, and the upper end of the spring 10 is arranged in the lower limit groove 9 opened at the bottom of the previous fixing part 7, a limiting hole is penetrated on the fixing part 7, the limiting rod 4 is penetrated in the limiting hole opened on the fixing part 7, and the limiting rod 4 Located inside the spring 10, a cavity is provided in the pressing plate 6, a heating rod 11 is provided in the cavity, a wire 12 is provided on the heating rod 11, a No. 1 hydraulic cylinder 13 is installed on the bottom plate 1, and a No. 1 hydraulic rod 14 is provided at the action end of the No. 1 hydraulic cylinder 13, and the top end of the No. 1 hydraulic rod 14 is installed at the lower part of the bottom pressing plate 6, the pressing plates 6 are parallel to each other, and the thickness of the fixing member 7 is the same as the thickness of the pressing plate 6, the spring 10 can be contracted into the upper limit groove 8 and the lower limit groove 9 opened by the fixing member 7, and the top plate 3 is also provided with a lower limit groove 9 at a position opposite to the upper limit groove 8 of the top layer, and the bottom of the fixing member 7 at the bottom layer is solid, a heating controller 15 is installed on the bottom plate 1, and the other end of the wire 12 is connected to the heating controller 15, a cavity is also provided in the top plate 3, a heating rod 11 is provided in the cavity, and a wire 12 is provided on the heating rod 11.

[0025] During operation, the existing plywood pressing device can only produce a single board at a time and cannot press and produce multiple boards at the same time, resulting in low production efficiency, and the adhesive is not completely solidified during pressing, resulting in cracking of the board. In the present invention, the uppermost spring 10 in the initial state will always push the uppermost fixing part 7 downward, so that the uppermost pressing plate 6 and the top plate 3 maintain a certain distance, and the remaining springs 10 will always push the remaining fixing parts 7 to the upper and lower ends, and keep a certain distance between the remaining pressing plates 6 under the restriction of the limit rod 4 and the limit plate 5. By placing the glue-coated and stacked single board on the upper surface of the pressing plate 6, the No. 1 hydraulic rod 14 is extended upward by the No. 1 hydraulic cylinder 13. When the No. 1 hydraulic rod 14 pushes upward, the pressing plate 6 will move upward, and at the same time, the fixing part 7 will move upward, and the fixing part 7 will compress the spring 10 when it moves upward, and the spring 10 is compressed. After that, it will retract into the upper limit groove 8 and the lower limit groove 9 at the bottom of the upper fixing piece 7, and the uppermost spring 10 will be compressed and retracted into the upper limit groove 8 opened on the upper part of the uppermost fixing piece 7 and the lower limit groove 9 opened under the top plate 3. With the continuous force of the No. 1 hydraulic rod 14, the gap between the pressing plates 6 is gradually reduced, and the pressing plates 6 will press the glue-coated and stacked veneers together, and the purpose of pressing is achieved. The heating controller 15 controls the heating rod 11 to heat, and the heating rod 11 will heat the veneer continuously squeezed between the pressing plates 6, thereby accelerating the solidification of the veneer adhesive. After pressing and forming, the No. 1 hydraulic rod 14 is controlled to retract. When the No. 1 hydraulic rod 14 retracts, the pressing plate 6 will return to its original position under the action of the spring 10, and the plywood pressing effect is achieved, and multiple pieces of plywood are pressed at the same time. Compared with traditional plywood pressing devices, the pressing effect is better and the plywood production quality is higher.

[0026] See also Figure 4-5 As shown, a column 16 is vertically installed on the base plate 1, a T-shaped slide rail 17 is vertically arranged on the column 16, a slider 18 is clamped on the T-shaped slide rail 17, a fixing rod 19 is installed on the side of the slider 18, and the other end of the fixing rod 19 is installed on the side of the pressing plate 6, a No. 2 hydraulic cylinder 20 is installed on the side of the slider 18, a No. 2 hydraulic rod 21 is arranged in the action area of ​​the No. 2 hydraulic cylinder 20, and a scraper 22 is installed on the other end of the No. 2 hydraulic rod 21, the fixing rod 19 is perpendicular to the column 16 and parallel to the base plate 1, the No. 2 hydraulic cylinder 20 and the fixing rod 19 are parallel to each other, the bottom surface of the scraper 22 is parallel to the upper surface of the pressing plate 6, and the scraper 22 can be moved in cooperation to the gap between the pressing plates 6, and the action end of the No. 2 hydraulic cylinder 20 is fixed to the fixing rod 19 by a fixing block 23.

[0027] During operation, the existing plywood pressing device is not convenient for taking out the pressed plywood, and wood debris will be generated when the single boards are stacked and pressed. If not handled in time, it will affect the pressing effect of the plywood, resulting in defects and depressions on the board. In this solution, when the plywood is pressed, the pressing plate 6 will drive the fixing rod 19 to move up and down, and when the fixing rod 19 moves, it will drive the slider 18 to move up and down on the T-shaped slide rail 17 on the side of the column 16. At this time, the scraper 22 is located outside the gap of the pressing plate 6, and when the slider 18 moves, it will simultaneously drive the second hydraulic cylinder 20, The No. 2 hydraulic rod 21 moves with the scraper 22. When the pressing is completed, the pressing plate 6 returns to its original position, and a certain gap is restored between the pressing plates 6. The No. 2 hydraulic cylinder 20 controls the No. 2 hydraulic rod 21 to extend. When the No. 2 hydraulic rod 21 extends, the scraper 22 will be pushed into the gap between the pressing plates 6, and the pressed plywood will be pushed out of the gap. At the same time, the scraper 22 will scrape the wood chips on the surface of the pressing plate 6 and push it off the surface of the pressing plate 6. The purpose of taking the board is achieved through cooperation, and the wood chips of the pressing device are cleaned, which effectively avoids the influence of wood chips on product quality.

[0028] Working principle: Since the existing plywood pressing device can only produce a single board at a time and cannot press and produce multiple boards at the same time, the production efficiency is low, and the adhesive is not completely solidified during pressing, resulting in cracking of the board. In the present invention, the uppermost spring 10 in the initial state will always push the uppermost fixing part 7 downward, so that the uppermost pressing plate 6 and the top plate 3 maintain a certain distance, and the remaining springs 10 will always push the remaining fixing parts 7 to the upper and lower ends, and keep a certain distance between the remaining pressing plates 6 under the restriction of the limit rod 4 and the limit plate 5. By placing the glue-coated and stacked single board on the upper surface of the pressing plate 6, the No. 1 hydraulic rod 14 is extended upward by the No. 1 hydraulic cylinder 13. When the No. 1 hydraulic rod 14 pushes upward, the pressing plate 6 will move upward, and at the same time, the fixing part 7 will move upward, and the fixing part 7 will compress the spring 10 when it moves upward, and the spring 10 is compressed. After pressing, it will retract into the upper limit groove 8 and the lower limit groove 9 at the bottom of the upper fixing piece 7, and the uppermost spring 10 will be compressed and retracted into the upper limit groove 8 opened on the upper part of the uppermost fixing piece 7 and the lower limit groove 9 opened under the top plate 3. With the continuous force of the No. 1 hydraulic rod 14, the gap between the pressing plates 6 gradually decreases, and the pressing plates 6 will press the glue-coated and stacked veneers together, and the purpose of pressing is achieved. The heating controller 15 controls the heating rod 11 to heat, and the heating rod 11 will heat the veneer continuously squeezed between the pressing plates 6, thereby accelerating the solidification of the veneer adhesive. After pressing and forming, the No. 1 hydraulic rod 14 is controlled to retract. When the No. 1 hydraulic rod 14 retracts, the pressing plate 6 will return to its original position under the action of the spring 10, and the plywood pressing effect is achieved, and multiple pieces of plywood are pressed at the same time. Compared with traditional plywood pressing devices, the pressing effect is better and the plywood production quality is higher.

[0029] The existing plywood pressing device is not convenient for taking out the pressed plywood, and wood debris will be generated when the single board is stacked and pressed. If it is not handled in time, it will affect the pressing effect of the plywood, resulting in defects and depressions in the board. In this scheme, when the plywood is pressed, the pressing plate 6 will drive the fixing rod 19 to move up and down, and when the fixing rod 19 moves, it will drive the slider 18 to move up and down on the T-shaped slide rail 17 on the side of the column 16. At this time, the scraper 22 is located outside the gap of the pressing plate 6, and when the slider 18 moves, it will simultaneously drive the second hydraulic cylinder 20 and the second hydraulic cylinder 21 to move. The hydraulic rod 21 moves with the scraper 22. When the pressing is completed, the pressing plate 6 returns to its original position, and a certain gap is restored between the pressing plates 6. The No. 2 hydraulic rod 21 is extended by controlling the No. 2 hydraulic cylinder 20. When the No. 2 hydraulic rod 21 is extended, the scraper 22 is pushed into the gap between the pressing plates 6, and the pressed plywood is pushed out of the gap. At the same time, the scraper 22 will scrape the wood chips on the surface of the pressing plate 6 and push it off the surface of the pressing plate 6. The purpose of taking the board is achieved through cooperation, and the wood chips of the pressing device are cleaned, which effectively avoids the influence of wood chips on product quality.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A plywood pressing device, characterized in that: The invention comprises a bottom plate (1); two support columns (2) are symmetrically mounted on the bottom plate (1); a top plate (3) is mounted between the top ends of the two support columns (2); four limit rods (4) are mounted below the top plate (3); limit plates (5) are mounted on the four limit rods (4); the four limit rods (4) are diagonally arranged in a rectangular shape; and pressing plates (6) are vertically arranged between the four limit rods (4); the pressing plates (6) are rectangular in shape and are located between the limit plates (5) and the top plate (3); fixing members (7) are mounted at four diagonal positions of the pressing plates (6); an upper limit groove (8) is formed at the top of the fixing member (7); a lower limit groove (9) is formed at the bottom of the fixing member (7); the upper limit groove (8) is formed at the bottom of the fixing member (7); and the lower limit groove (9) is formed at the bottom of the fixing member (7). A spring (10) is arranged in the positioning groove (8), and the upper end of the spring (10) is arranged in a lower limiting groove (9) opened at the bottom of the upper fixing member (7); a limiting hole is penetrated through the fixing member (7); the limiting rod (4) is penetrated through the limiting hole opened in the fixing member (7), and the limiting rod (4) is located inside the spring (10); a cavity is arranged in the pressing plate (6), a heating rod (11) is arranged in the cavity, and a wire (12) is arranged on the heating rod (11); a No. 1 hydraulic cylinder (13) is installed on the bottom plate (1), and a No. 1 hydraulic rod (14) is arranged upward at the action end of the No. 1 hydraulic cylinder (13), and the top end of the No. 1 hydraulic rod (14) is installed at the lower part of the pressing plate (6) at the bottom layer.

2. A plywood pressing device according to claim 1, characterized in that: The pressing plates (6) are parallel to each other, and the thickness of the fixing member (7) is the same as that of the pressing plates (6). The spring (10) can be contracted into the upper limit groove (8) and the lower limit groove (9) provided on the fixing member (7). A lower limit groove (9) is also provided at a position of the top plate (3) opposite to the upper limit groove (8) of the top layer, and the bottom of the fixing member (7) at the bottom layer is solid.

3. The plywood pressing device according to claim 1, characterized in that: A heating controller (15) is installed on the bottom plate (1), and the other ends of the wires (12) are connected to the heating controller (15). A cavity is also provided in the top plate (3), a heating rod (11) is provided in the cavity, and a wire (12) is provided on the heating rod (11).

4. The plywood pressing device according to claim 3, characterized in that: A column (16) is vertically mounted on the bottom plate (1), a T-shaped slide rail (17) is vertically mounted on the column (16), a slider (18) is clamped on the T-shaped slide rail (17), a fixing rod (19) is mounted on the side of the slider (18), the other end of the fixing rod (19) is mounted on the side of the pressing plate (6), a No. 2 hydraulic cylinder (20) is mounted on the side of the slider (18), a No. 2 hydraulic rod (21) is mounted in the action of the No. 2 hydraulic cylinder (20), and a scraper (22) is mounted on the other end of the No. 2 hydraulic rod (21).

5. The plywood pressing device according to claim 4, characterized in that: The fixing rod (19) and the column (16) are perpendicular to each other and parallel to the bottom plate (1); the second hydraulic cylinder (20) and the fixing rod (19) are parallel to each other.

6. The plywood pressing device according to claim 5, characterized in that: The bottom surface of the scraper (22) is parallel to the upper surface of the pressing plate (6), and the scraper (22) can be moved into the gap between the pressing plates (6) in coordination. The working end of the second hydraulic cylinder (20) is fixed to the fixing rod (19) via a fixing block (23).

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