Melamine paper and density fiberboard high-temperature hot pressing equipment

Abstract

The utility model discloses melamine paper and density fiberboard high-temperature hot-pressing equipment, and relates to floor hot-pressing equipment. Comprising a main body frame and a feeding frame; a hot-pressing cavity is formed in the main body frame, a hot-pressing upper plate and a pressure-bearing lower plate are installed in the hot-pressing cavity, and the interior of the feeding frame is suitable for dragging the pressure-bearing lower plate; a pushing hydraulic cylinder is installed on the hot-pressing upper plate, the output end of the pushing hydraulic cylinder faces downwards and is connected with the hot-pressing upper plate, and a main electric heating pipe is installed in the hot-pressing upper plate; the hot-pressing upper plate comprises a built-in plate and hinged plates, the hinged plates are installed on the four sides of the built-in plate and rotationally connected with the built-in plate, and auxiliary electric heating pipes are installed in the hinged plates. According to the utility model, the technical problem that the melamine paper is warped in hot pressing by inclined hot pressing is solved.

Description

Technical Field

[0001] The utility model relates to floor hot pressing equipment, in particular to high-temperature hot pressing equipment for melamine paper and density fiberboard. Background Art

[0002] Melamine paper, whose full name is melamine impregnated film paper, is a kind of plain base paper or printed decorative paper that has been impregnated with amino resin and dried to a certain degree. It has a certain resin content and volatile content. It can be glued to each other or to the base material of artificial board after hot pressing. It is often used as floor decorative paper.

[0003] Density fiberboard is made of wood fiber or other plant fiber, which is prepared by fiber preparation, applied with synthetic resin, and pressed under heating and pressure. It is often used as a base material board.

[0004] Melamine paper is laid on a density fiberboard, bonded by a hot press, and finally cut to form a finished floor; the outer end of the melamine paper after hot pressing is prone to warping, because the melamine paper shrinks when it cools due to expansion after hot pressing and contraction after hot bonding. The existing reference patent application number CN202010571013.X is a method for pressing a high-flatness melamine veneer panel, which uses a preliminary water spraying method to cure the density fiberboard to increase its moisture content and reduce the chance of melamine paper shrinking after hot pressing. First of all, it is difficult to maintain a uniform material for the substrate board, and the finished products will be different due to the amount of water absorbed, so it is difficult to maintain a uniform floor.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] In view of the shortcomings of the prior art, the utility model provides a machine tool with a gantry and an iron chip recovery function. The specific technical solution is as follows:

[0008] A high-temperature hot pressing device for melamine paper and density fiberboard, comprising a main frame and a feeding frame;

[0009] A hot pressing chamber is provided in the main frame, a hot pressing upper plate and a pressure-bearing lower plate are installed in the hot pressing chamber, and the feeding frame is suitable for pulling the pressure-bearing lower plate; a pushing hydraulic cylinder is installed on the hot pressing upper plate, the output end of the pushing hydraulic cylinder is downward and connected to the hot pressing upper plate, and a main electric heating pipe is installed in the hot pressing upper plate;

[0010] The hot pressing upper plate comprises a built-in plate and a hinged plate. The four sides of the built-in plate are provided with hinged plates. The hinged plates are rotatably connected to the built-in plate. Auxiliary electric heating pipes are installed in the hinged plates.

[0011] In a further technical solution, the main frame includes an upper position plate, a push hydraulic cylinder is installed on the upper position plate, and the cylinder body of the push hydraulic cylinder is detachably connected to the upper position plate;

[0012] An auxiliary hydraulic cylinder is also installed on the upper position plate, and the output end of the auxiliary hydraulic cylinder is set downward. A lower pressure plate is installed on the output end of the auxiliary hydraulic cylinder. The four corners of the lower pressure plate are bent downward, and the lower pressure plate is suitable for pressing the hinged plate downward.

[0013] In a further technical solution, a telescopic guide rod is installed between the built-in plate and the upper position plate, the upper end of the telescopic guide rod is detachably connected to the upper position plate, and the bottom end of the telescopic guide rod passes through the lower pressure plate and is detachably connected to the top of the built-in plate.

[0014] In a further technical solution, a fixing ring is installed on the telescopic guide rod, and the fixing ring is suitable for limiting the downward pressing position of the lower pressing plate.

[0015] In a further technical solution, the feeding rack includes a lower position plate, the lower position plate is provided with two parallel groups and is connected to the main frame, and a guide groove is installed on the inner side of the lower position plate;

[0016] Multiple groups of sprockets are installed on the outer sides of the two groups of lower position plates, conveyor belts are installed on the sprockets, fixed sections are installed on the conveyor belts, and fixed plates are integrally connected to the fixed sections; one end of the fixed plate away from the fixed section is detachably connected to the pressure-bearing lower plate.

[0017] In a further technical solution, the fixed plate includes an H-shaped plate and two sets of short shafts, and guide wheels are installed on the short shafts; the guide wheels roll along the inner wall of the guide groove.

[0018] In a further technical solution, the top of the lower pressure plate includes a horizontal surface and an inclined surface, wherein the inclined surface is located on four sides of the horizontal surface and is inclined downward toward a side away from the horizontal surface;

[0019] The inclination angle of the inclined surface relative to the horizontal plane is 5 to 35 degrees.

[0020] In a further technical solution, the pair of sprockets at the ends of the lower position plates are mounted with connecting long shafts, and the connecting long shafts pass through the two sets of lower position plates;

[0021] A position frame is installed outside the lower position plate, a driving motor is installed on the position frame, and an output shaft of the driving motor is coaxially connected with a corresponding sprocket.

[0022] Beneficial effects:

[0023] 1. The utility model provides a built-in plate and a hinged plate, so that the melamine paper is hot-pressed and bonded to the side of the density fiberboard to form a lateral bonding. When the hot pressing is completed and the melamine paper shrinks, the outer side of the cooled melamine paper shrinks, and no warping occurs due to the existence of the bonding force.

[0024] 2. The utility model realizes the control of the downward pressing angle of the hinged plate by the auxiliary hydraulic cylinder working downward, and realizes the stable downward pressing position by setting the fixed ring to limit the stroke.

[0025] 3. The utility model determines the direction by sliding the fixed plate in the guide groove, and the H-shaped plate and the guide wheel form a direction; the conveyor belt and the sprocket are driven by the driving motor to rotate, thus forming a relatively stable power. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] In the attached picture:

[0028] Figure 1 It is a front view of the high temperature hot pressing equipment of the utility model;

[0029] Figure 2 for Figure 1 A magnified view of part A;

[0030] Figure 3 This is a schematic diagram of the high temperature hot pressing equipment structure of the utility model;

[0031] Figure 4 It is a cross-sectional view of the lower position plate of the utility model;

[0032] Figure 5 for Figure 4 A magnified view of part B;

[0033] Figure 6 It is a structural schematic diagram of the lower pressure plate;

[0034] Figure 7 This is the structural diagram of the lower pressure plate;

[0035] Figure 8 It is a top view of the high-temperature hot pressing equipment of the utility model.

[0036] In the figure: 1. main frame; 2. hot pressing upper plate; 3. pressure-bearing lower plate; 4. pushing hydraulic cylinder; 5. main electric heating tube; 6. built-in plate; 7. hinged plate; 8. auxiliary heating electric heating tube; 9. upper position plate; 10. auxiliary hydraulic cylinder; 11. lower pressure plate; 12. telescopic guide rod; 13. fixing ring; 14. lower position plate; 15. guide groove; 16. sprocket; 17. conveyor belt; 18. fixing section; 19. fixing plate; 20. H-shaped plate; 21. short shaft; 22. guide wheel; 23. horizontal plane; 24. inclined plane; 25. connecting long shaft; 26. position frame; 27. driving motor. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0038] The application principle of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0039] Example 1

[0040] like Figures 1 to 3 As shown, it is an embodiment of the utility model, a high temperature hot pressing device for melamine paper and density fiberboard, comprising a main frame 1 and a feeding frame;

[0041] The main frame 1 is provided with a hot pressing chamber, in which a hot pressing upper plate 2 and a pressure-bearing lower plate 3 are installed, and the feeding frame is suitable for pulling the pressure-bearing lower plate 3; a pushing hydraulic cylinder 4 is installed on the hot pressing upper plate 2, and the output end of the pushing hydraulic cylinder 4 is downward and connected to the hot pressing upper plate 2, and a main electric heating pipe 5 is installed in the hot pressing upper plate 2;

[0042] The hot pressing upper plate 2 includes a built-in plate 6 and a hinged plate 7 . The hinged plates 7 are installed on four sides of the built-in plate 6 . The hinged plates 7 are rotatably connected to the built-in plate 6 . Auxiliary electric heating pipes 8 are installed in the hinged plates 7 .

[0043] In a further technical solution, the main frame 1 includes an upper position plate 9, on which a push hydraulic cylinder 4 is mounted, and a cylinder body of the push hydraulic cylinder 4 is detachably connected to the upper position plate 9;

[0044] An auxiliary hydraulic cylinder 10 is also installed on the upper position plate 9, and the output end of the auxiliary hydraulic cylinder 10 is set downward. A lower pressing plate 11 is installed on the output end of the auxiliary hydraulic cylinder 10, and the four corners of the lower pressing plate 11 are bent downward. The lower pressing plate 11 is suitable for pressing the hinge plate 7 downward.

[0045] A telescopic guide rod 12 is also installed between the built-in plate 6 and the upper position plate 9 , the upper end of the telescopic guide rod 12 is detachably connected to the upper position plate 9 , and the bottom end of the telescopic guide rod 12 passes through the lower pressure plate 11 and is detachably connected to the top of the built-in plate 6 .

[0046] A fixing ring 13 is installed on the telescopic guide rod 12, and the fixing ring 13 is suitable for limiting the pressing position of the lower pressing plate 11. The different pressing positions can control the inclination angle of the hinged plate 7 to avoid the inability to perform angled bonding due to too low pressing, and the inconvenience of later cutting due to too much pressing. Furthermore, a torsion spring is installed at the hinge connection between the hinged plate 7 and the built-in plate 6. Under normal conditions, the hot pressing temperature of the hot press is 100-350°C. The torsion spring is made of alloy steel spring material and can withstand its high temperature environment. For example, chromium alloy springs and cobalt-chromium-molybdenum alloy springs. The torsion spring makes the hinged plate in a horizontal position relative to the built-in plate.

[0047] The feeding frame includes a lower position plate 14, which is provided with two parallel groups and is connected to the main frame 1, and a guide groove 15 is installed inside the lower position plate 14;

[0048] Multiple sets of sprockets 16 are installed on the outer sides of the two sets of lower position plates 14, and conveyor belts 17 are installed on the sprockets 16. Fixed sections 18 are installed on the conveyor belts 17, and fixed plates 19 are integrally connected to the fixed sections 18. The end of the fixed plate 19 away from the fixed section 18 is detachably connected to the pressure-bearing lower plate 3.

[0049] Example 2

[0050] like Figures 4 to 8 As shown, it is another implementation scheme of the utility model. On the basis of Example 1, the fixed plate 19 includes an H-shaped plate 20 and two groups of short shafts 21, and the short shafts 21 are mounted with guide wheels 22; the guide wheels 22 roll along the inner wall of the guide groove 15. The top of the pressure-bearing lower plate 3 includes a horizontal surface 23 and an inclined surface 24, and the inclined surface 24 is located on the four sides of the horizontal surface 23 and is inclined downward toward the side away from the horizontal surface 23; the inclination angle of the inclined surface 24 relative to the horizontal surface 23 is 5 to 35 degrees. The paired sprockets 16 located at the end of the lower position plate 14 are mounted with a connecting long shaft 25, and the connecting long shaft 25 passes through the two groups of lower position plates 14; the lower position plate 14 is mounted with a position frame 26, and the position frame 26 is mounted with a drive motor 27, and the output shaft of the drive motor 27 is coaxially connected with the corresponding sprocket 16. Two groups of positioning columns are installed on the lower position plate, and the space between the two groups of positioning columns is suitable for workers to lay melamine paper on the pressure-bearing lower plate to avoid the melamine paper being unable to be hot-pressed and being tilted and hot-pressed by the hinged plate.

[0051] Working principle:

[0052] The worker places the melamine paper on the density fiberboard on the upper pressure plate, drives the motor into the hot pressing chamber, and fixes the point. The hydraulic cylinder is pushed downward to output the heat pressing, so that the melamine paper is bonded to the density fiberboard, and then the auxiliary hydraulic cylinder passes through the lower pressure plate downward, squeezes the hinge plate downward, and the auxiliary electric heating pipe heats the lateral melamine paper and keeps it in an inclined state; the output end of the auxiliary hydraulic cylinder is then upward, the lower pressure plate is away from the hinge plate, and the hinge plate is reset under the action of the torsion spring; the output end of the push hydraulic cylinder is upward, the upper hot pressing plate is away from the melamine paper, the hot pressing is completed, and the material is removed.

[0053] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0054] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high temperature hot pressing device for melamine paper and density fiberboard, characterized in that: It comprises a main frame (1) and a feeding frame; A hot pressing chamber is provided in the main frame (1), a hot pressing upper plate (2) and a pressure-bearing lower plate (3) are installed in the hot pressing chamber, and the feeding frame is suitable for pulling the pressure-bearing lower plate (3); a pushing hydraulic cylinder (4) is installed on the hot pressing upper plate (2), the output end of the pushing hydraulic cylinder (4) is downward and connected to the hot pressing upper plate (2), and a main electric heating pipe (5) is installed in the hot pressing upper plate (2); The hot pressing upper plate (2) comprises a built-in plate (6) and a hinged plate (7), the four sides of the built-in plate (6) are provided with hinged plates (7), the hinged plates (7) are rotatably connected to the built-in plate (6), and an auxiliary electric heating pipe (8) is installed in the hinged plate (7).

2. The high temperature hot pressing equipment for melamine paper and density fiberboard according to claim 1, characterized in that: The main frame (1) comprises an upper position plate (9), a push hydraulic cylinder (4) is mounted on the upper position plate (9), and a cylinder body of the push hydraulic cylinder (4) is detachably connected to the upper position plate (9); An auxiliary hydraulic cylinder (10) is also installed on the upper position plate (9), and the output end of the auxiliary hydraulic cylinder (10) is arranged downward. A lower pressing plate (11) is installed on the output end of the auxiliary hydraulic cylinder (10), and the four corners of the lower pressing plate (11) are bent downward. The lower pressing plate (11) is suitable for pressing the hinged plate (7) downward.

3. The high temperature hot pressing equipment for melamine paper and density fiberboard according to claim 1, characterized in that: A telescopic guide rod (12) is also installed between the built-in plate (6) and the upper position plate (9), the upper end of the telescopic guide rod (12) is detachably connected to the upper position plate (9), and the bottom end of the telescopic guide rod (12) passes through the lower pressure plate (11) and is detachably connected to the top of the built-in plate (6).

4. The high temperature hot pressing equipment for melamine paper and density fiberboard according to claim 3, characterized in that: A fixing ring (13) is installed on the telescopic guide rod (12), and the fixing ring (13) is suitable for limiting the downward pressing position of the lower pressing plate (11).

5. The high temperature hot pressing equipment for melamine paper and density fiberboard according to claim 1, characterized in that: The feeding rack comprises a lower position plate (14), wherein the lower position plate (14) is provided with two parallel groups and is connected to the main frame (1), and a guide groove (15) is installed inside the lower position plate (14); Multiple groups of sprockets (16) are installed on the outer sides of the two groups of lower position plates (14), a conveyor belt (17) is installed on the sprocket (16), a fixed section (18) is installed on the conveyor belt (17), and a fixed plate (19) is integrally connected to the fixed section (18); the end of the fixed plate (19) away from the fixed section (18) is detachably connected to the pressure-bearing lower plate (3).

6. The high temperature hot pressing equipment for melamine paper and density fiberboard according to claim 5, characterized in that: The fixed plate (19) comprises an H-shaped plate (20) and two groups of short shafts (21), and guide wheels (22) are mounted on the short shafts (21); the guide wheels (22) roll along the inner wall of the guide groove (15).

7. The high temperature hot pressing equipment for melamine paper and density fiberboard according to claim 1, characterized in that: The top of the lower pressure plate (3) comprises a horizontal surface (23) and an inclined surface (24), wherein the inclined surface (24) is located on four sides of the horizontal surface (23) and is arranged to be inclined downward toward a side away from the horizontal surface (23); The inclination angle of the inclined surface (24) relative to the horizontal surface (23) is between 5° and 35°.

8. The high temperature hot pressing equipment for melamine paper and density fiberboard according to claim 5, characterized in that: The pair of sprockets (16) located at the ends of the lower position plates (14) are equipped with connecting long shafts (25), and the connecting long shafts (25) pass through the two sets of lower position plates (14); A position frame (26) is installed outside the lower position plate (14), a driving motor (27) is installed on the position frame (26), and an output shaft of the driving motor (27) is coaxially connected to the corresponding sprocket (16).

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