Foam forming device for middle layer of plate

Abstract

The invention provides a plate middle layer foaming forming device which comprises a mold base, a metal lifting base, an electric telescopic rod and a vacuum chuck, two foaming agent adding openings are formed in the front end of the mold base, a cold water tank is placed on the right front portion of the lower end of the mold base, a small water chilling unit and a water pump are installed on one side of the cold water tank, and a flange base is arranged in the middle of the lower portion of the mold base. An electric push rod is longitudinally installed at the upper end of the flange base, the metal lifting base is movably located in the mold base, a lower plate is horizontally placed at the upper end of the metal lifting base, and the design solves the problems that an original device is single in function, a foamed composite plate cannot be heated or cooled, and the foaming effect is affected; according to the foaming device, the composite board can be heated to promote the foaming reaction, rapid cooling, foaming structure fixing and curing time shortening can be achieved after foaming is completed, finally, the board can be rapidly pushed out, the taking time of workers is saved, and the working efficiency of the foaming device is indirectly improved.

Description

Technical Field

[0001] The invention relates to a foaming and molding device for an intermediate layer of a plate, belonging to the technical field of plate processing equipment. Background Art

[0002] The board middle layer foaming molding device is a device specially used to produce composite boards with sandwich structures. The middle layer uses foaming materials to provide good heat insulation, sound insulation and weight reduction effects. The design and working principle of this device involves many key technical links, including the selection of foaming agents, mixing systems, mold design, and temperature and pressure control.

[0003] Publication No.: CN219686358U, mentions a PP hollow sheet foaming molding device, which realizes the integration of the PP hollow sheet and the rapid and automatic demolding after molding by setting a mold and a sliding plate on the mold, greatly increasing the strength of the PP hollow sheet. However, the device has a single function and cannot heat or cool the foamed composite sheet, which affects its foaming effect. Now there is an urgent need for a sheet middle layer foaming molding device to solve the above-mentioned problems. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a device for foaming the intermediate layer of a board material to solve the problems raised in the above-mentioned background technology. The present invention can not only heat the composite board material to promote the foaming reaction, but also quickly cool it down after the foaming is completed, fix the foaming structure, shorten the curing time, and finally quickly push the board material out, saving the staff's picking time and indirectly improving their work efficiency.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a plate middle layer foaming molding device, including a mold seat, a metal lifting seat, an electric telescopic rod and a vacuum suction cup, the front end of the mold seat is provided with two foaming agent addition ports, a cold water tank is placed in the front right of the lower end of the mold seat, a small chiller and a water pump are installed on one side of the cold water tank, a flange seat is arranged in the middle below the mold seat, an electric push rod is longitudinally installed on the upper end of the flange seat, the metal lifting seat is movably located in the mold seat, a lower plate is horizontally placed on the upper end of the metal lifting seat, and the metal An insulating base plate is horizontally fixed to the lower end of the lifting seat, a temperature controller is installed on the left side of the lower end of the insulating base plate, a semiconductor heating plate is horizontally arranged on the upper end of the insulating base plate, a metal heat conducting sheet is horizontally arranged on the upper end of the semiconductor heating plate, a serpentine copper tube is horizontally arranged on the upper end of the metal heat conducting sheet, a vertical frame is longitudinally installed on the upper end of the rear side of the metal lifting seat, two electric telescopic rods are installed through the front end of the vertical frame, a movable plate is horizontally fixed to the movable ends of the two electric telescopic rods, a plurality of vacuum suction cups are installed through the lower end of the movable plate, and an upper plate is horizontally sucked onto the lower ends of the plurality of vacuum suction cups.

[0006] Furthermore, legs are longitudinally fixed on the left and right sides of the lower end of the mold base, and a plurality of exhaust holes are opened at the rear end of the mold base.

[0007] Furthermore, the upper plate is located directly above the lower plate.

[0008] Furthermore, the movable end of the electric push rod is connected to the heat-insulating bottom plate.

[0009] Furthermore, the liquid inlet end of the serpentine copper tube is connected to a water pump through a hose, and the liquid outlet end of the serpentine copper tube is connected to a small chiller and a cold water tank through a hose.

[0010] Furthermore, a vacuum pump is provided at the upper end of the stand, and the vacuum pump is connected to a plurality of vacuum suction cups respectively through a plurality of vacuum hoses.

[0011] Beneficial effects of the present invention: A device for foaming the intermediate layer of a plate of the present invention, because the present invention adds a mold base, a cold water tank, a small chiller, a water pump, an electric push rod, an insulating base plate, a semiconductor heating plate, a metal thermal conductive plate, a temperature controller, a serpentine copper tube, a metal lifting seat, an electric telescopic rod, a movable plate, a vacuum suction cup and a vacuum pump. Our design improvements and actual use have shown that the device has a reasonable structure and good practicality. It can not only heat the composite plate to promote the foaming reaction, but also quickly cool it down after the foaming is completed, fix the foaming structure, shorten the curing time, ensure the foaming quality, and finally the plate can be quickly pushed out, saving the staff's picking time and indirectly improving their work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0013] Figure 1 It is a three-dimensional schematic diagram of the overall structure of a device for foaming and molding the middle layer of a plate material according to the present invention;

[0014] Figure 2 It is a schematic diagram of the three-dimensional connection of a metal lifting seat of a foaming molding device for the middle layer of a plate according to the present invention;

[0015] Figure 3 It is a schematic cross-sectional view of a metal lifting seat of a device for foaming and molding a middle layer of a plate material according to the present invention.

[0016] In the figure: 1-support legs, 2-mold base, 3-foaming agent addition port, 4-cold water tank, 5-small chiller, 6-water pump, 7-flange seat, 8-electric push rod, 9-insulation bottom plate, 10-semiconductor heating plate, 11-metal heat conductive sheet, 12-temperature controller, 13-snake-shaped copper tube, 14-metal lifting seat, 15-lower plate, 16-stand, 17-electric telescopic rod, 18-movable plate, 19-upper plate, 20-vacuum suction cup, 21-vacuum pump. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0018] See also Figure 1-Figure 3 The present invention provides a technical solution: a plate middle layer foaming molding device, including a mold base 2, a metal lifting base 14, an electric telescopic rod 17 and a vacuum suction cup 20, two foaming agent adding ports 3 are arranged at the front end of the mold base 2, a cold water tank 4 is placed at the right front of the lower end of the mold base 2, a small chiller 5 and a water pump 6 are installed on one side of the cold water tank 4, a flange base 7 is arranged in the middle below the mold base 2, an electric push rod 8 is longitudinally installed at the upper end of the flange base 7, the metal lifting base 14 is movable in the mold base 2, a lower plate 15 is horizontally placed at the upper end of the metal lifting base 14, an insulating bottom plate 9 is horizontally fixed at the lower end of the metal lifting base 14, and a temperature control device 8 is installed on the left side of the lower end of the insulating bottom plate 9. A controller 12, a semiconductor heating plate 10 is horizontally arranged on the upper end of the heat-insulating bottom plate 9, a metal heat-conducting sheet 11 is horizontally arranged on the upper end of the semiconductor heating plate 10, a serpentine copper tube 13 is horizontally arranged on the upper end of the metal heat-conducting sheet 11, a stand 16 is longitudinally installed on the upper end of the rear side of the metal lifting seat 14, two electric telescopic rods 17 are installed through the front end of the stand 16, a moving plate 18 is horizontally fixed at the movable ends of the two electric telescopic rods 17, a plurality of vacuum suction cups 20 are installed through the lower end of the moving plate 18, and an upper plate 19 is horizontally sucked at the lower ends of the plurality of vacuum suction cups 20. This design solves the problem that the original device has a single function and cannot heat or cool the foamed composite plate, thereby affecting its foaming effect.

[0019] As the first embodiment of the present invention: the left and right sides of the lower end of the mold base 2 are longitudinally fixed with legs 1, and the rear end of the mold base 2 is provided with multiple exhaust holes. The added multiple exhaust holes facilitate the discharge of air and volatiles when the foaming agent is injected into the mold base 2. The upper plate 19 is located directly above the lower plate 15, and the added upper plate 19 can be driven to move to the upper side of the lower plate 15, so as to facilitate the injection of the foaming agent between the upper plate 19 and the lower plate 15. The movable end of the electric push rod 8 is connected to the heat-insulating bottom plate 9, and the added movable end of the electric push rod 8 can push the heat-insulating bottom plate 9 and the metal lifting seat 14 upward.

[0020] The liquid inlet end of the serpentine copper tube 13 is connected to the water pump 6 through a hose, and the liquid outlet end of the serpentine copper tube 13 is connected to the small chiller 5 and the cold water tank 4 through a hose. When cold water is introduced into the added serpentine copper tube 13, the foaming agent can be quickly cooled through the metal lifting seat 14 and the lower plate 15 to fix the foaming structure. A vacuum pump 21 is provided at the upper end of the stand 16. The vacuum pump 21 is respectively connected to the multiple vacuum suction cups 20 through multiple vacuum hoses. The added vacuum pump 21 controls the multiple vacuum suction cups 20 to tightly suck the upper plate 19 through multiple vacuum hoses.

[0021] As the second embodiment of the present invention: in actual use, the lower plate 15 is placed horizontally in the metal lifting seat 14, and then the two electric telescopic rods 17 are controlled to move downward by an external PID controller, which can drive the movable plate 18 and multiple vacuum suction cups 20 to move downward (at this time, the upper plate 19 is adsorbed on the lower ends of the multiple vacuum suction cups 20), until the upper plate 19 moves into the mold seat 2 and is on the upper side of the lower plate 15. After a suitable gap is left between the upper plate 19 and the lower plate 15, outsiders can use a foaming agent injection device to inject foaming agent into the gap between the upper plate 19 and the lower plate 15 through the two foaming agent addition ports 3, and at the same time control the semiconductor heating plate 10 to heat in advance through the temperature controller 12, so that it can heat the metal lifting seat 14 and the lower plate 15 through the metal thermal conductive sheet 11 and the serpentine copper tube 13, so as to facilitate the foaming agent on the upper side of the lower plate 15 to maintain a constant temperature, promote the foaming reaction, and wait for its foaming to be completed. When it is necessary to cool down quickly after completion, the semiconductor heating plate 10 is stopped by the temperature controller 12, and the small chiller 5 and the water pump 6 are started (Note: the small chiller 5 is an existing refrigeration equipment product on the market, and its refrigeration principle is not repeated). The water pump 6 can pass the cold water in the cold water tank 4 into the serpentine copper tube 13 through a hose and circulate it, so as to quickly reduce the temperature of the serpentine copper tube 13, and also make the serpentine copper tube 13 exchange heat with the metal lifting seat 14 and the lower plate 15, fix the foaming structure of the middle layer of the composite plate, and shorten the curing time. After completion, the vacuum pump 21 controls each vacuum suction cup 20 to release the upper plate 19, and the external PID controller controls the two electric telescopic rods 17 to move up to the initial position, and then the electric push rod 8 is started, and the movable end of the electric push rod 8 can push the insulation bottom plate 9, the metal lifting seat 14 and the composite plate upward until the composite plate is removed from the mold seat 2, which is convenient for the staff to quickly take it.

[0022] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and 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. The scope of the present invention is defined by the attached 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. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0023] 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 foaming device for the middle layer of a plate, comprising a mold base (2), a metal lifting base (14), an electric telescopic rod (17) and a vacuum suction cup (20), characterized in that: The front end of the mold base (2) is provided with two foaming agent addition ports (3); a cold water tank (4) is placed at the right front of the lower end of the mold base (2); a small water chiller (5) and a water pump (6) are installed on one side of the cold water tank (4); a flange seat (7) is provided in the middle below the mold base (2); an electric push rod (8) is longitudinally installed at the upper end of the flange seat (7); The metal lifting seat (14) is movable in the mold seat (2), a lower plate (15) is horizontally placed on the upper end of the metal lifting seat (14), a heat-insulating bottom plate (9) is horizontally fixed to the lower end of the metal lifting seat (14), a temperature controller (12) is installed on the left side of the lower end of the heat-insulating bottom plate (9), a semiconductor heating plate (10) is horizontally arranged on the upper end of the heat-insulating bottom plate (9), and a metal heat-conducting sheet (11) is horizontally arranged on the upper end of the semiconductor heating plate (10). A serpentine copper tube (13) is horizontally arranged at the upper end of the heat conducting plate (11); a stand (16) is longitudinally installed at the upper end of the rear side of the metal lifting seat (14); two electric telescopic rods (17) are installed through the front end of the stand (16); movable plates (18) are horizontally fixed at the movable ends of the two electric telescopic rods (17); a plurality of vacuum suction cups (20) are installed through the lower end of the movable plate (18); and an upper plate (19) is horizontally sucked at the lower ends of the plurality of vacuum suction cups (20).

2. A board middle layer foaming molding device according to claim 1, characterized in that: Support legs (1) are longitudinally fixed on the left and right sides of the lower end of the mold base (2), and a plurality of exhaust holes are opened at the rear end of the mold base (2).

3. The device for foaming the middle layer of a plate material according to claim 1, characterized in that: The upper plate (19) is located directly above the lower plate (15).

4. The device for foaming the middle layer of a plate material according to claim 1, characterized in that: The movable end of the electric push rod (8) is connected to the heat-insulating bottom plate (9).

5. The device for foaming the middle layer of a plate material according to claim 1, characterized in that: The liquid inlet end of the serpentine copper tube (13) is connected to the water pump (6) through a hose, and the liquid outlet end of the serpentine copper tube (13) is connected to the small chiller (5) and the cold water tank (4) through a hose.

6. The device for foaming the middle layer of a plate material according to claim 1, characterized in that: A vacuum pump (21) is disposed at the upper end of the stand (16), and the vacuum pump (21) is connected to a plurality of vacuum suction cups (20) respectively through a plurality of vacuum hoses.

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