Extrusion die for extruded sheet

Abstract

The extrusion die comprises an extrusion die body and an extrusion channel, the bottom face of the extrusion die body is connected with the extrusion channel in a penetrating mode, a first side opening and a second side opening are formed in the surface of the extrusion channel, and an extrusion plate horizontal section is connected into the first side opening in a penetrating mode. And one end of the extrusion plate horizontal section is located on the inner side of the extrusion channel and connected with an extrusion plate vertical section. The extrusion device has the beneficial effects that two groups of L-shaped extrusion plates are adopted, and each extrusion plate comprises an extrusion plate vertical section and an extrusion plate horizontal section, so that when the thickness of an extruded plate is adjusted, a worker can start the electric cylinder to stretch and retract to drive the extrusion plate to move and the extrusion plate vertical section to move inwards, the thickness of the extruded plate is reduced when the extruded plate is extruded, and the extrusion plate vertical section moves outwards; and when the vertical section of the extrusion plate moves, the horizontal section of the extrusion plate is always in sliding butt joint with the first sealing ring, so that the extrusion thickness of the extrusion plate can be changed on the premise of not replacing the mold, and the adjustment and the use are very convenient and simple.

Description

Technical Field

[0001] This utility model relates to the field of extrusion die technology for extruded polystyrene boards, and more specifically, to an extrusion die for extruded polystyrene boards. Background Technology

[0002] Extrusion molding refers to the process of passing plastic, in a viscous flow state, through a mold with a specific cross-sectional shape under high temperature and certain pressure. Extruded polystyrene (XPS) boards are made of polymer materials and are mainly used in building roof insulation, steel structure roof and wall insulation, building floor moisture-proofing, and airport runway insulation layers.

[0003] A search revealed application CN202421650198.3, entitled "An Extrusion Die for Extruded Polystyrene Boards." This application addresses the issue that existing extruded polystyrene board production often relies on external cutting components for width adjustment. Current structures typically use cutters or hot-cutting mechanisms to solve this problem. However, these methods result in burrs or overheating deformation on the sides of the extruded polystyrene board, which are difficult to handle. Overheating deformation can further affect the original width through subsequent grinding, causing production inconvenience. The application addresses this by using different specifications of die cores with varying extrusion opening widths. Changing the die cores can meet the needs of processing extruded polystyrene boards of different specifications. The thickness of the extruded polystyrene board can be adjusted by regulating the distance between the lower and upper extrusion dies. Simultaneous movement of the lower and upper dies not only ensures the normal operation of the extrusion process but also allows for convenient real-time replacement of the internal die cores. However, this application still requires manual core replacement when adjusting the extruded thickness, necessitating machine downtime, which is cumbersome and affects work efficiency. Further improvements are needed.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an extrusion die for extruded boards, which has the advantages of convenient adjustment and use and improved work efficiency, thereby solving the problems mentioned in the background technology.

[0006] To achieve the aforementioned advantages of convenient adjustment and improved work efficiency, the specific technical solution adopted by this utility model is as follows:

[0007] An extrusion die for extruded polystyrene board includes an extrusion die body and an extrusion channel. The extrusion channel is connected through the bottom surface of the extrusion die body, and a first side opening and a second side opening are provided on the surface of the extrusion channel. A horizontal section of an extrusion plate is connected through the first side opening. One end of the horizontal section of the extrusion plate is located inside the extrusion channel and is connected to a vertical section of the extrusion plate. An electric cylinder is fixedly installed on the outer wall of the extrusion channel, and the other end of the moving rod of the electric cylinder is fixedly connected to the vertical section of the extrusion plate.

[0008] Furthermore, a first sealing gasket is fixedly installed on the inner wall of the first side opening, and the inner surface of the first sealing gasket slides against the horizontal section of the extrusion plate.

[0009] Furthermore, the width of the vertical section and the horizontal section of the extrusion plate are equal to the internal length of the extrusion channel, and the two ends of the vertical section and the horizontal section of the extrusion plate slide against the inner wall of the extrusion channel.

[0010] Furthermore, the vertical and horizontal sections of the extrusion plate are L-shaped as a whole, and the vertical and horizontal sections of the extrusion plate are an integral structure, with the connection between the vertical and horizontal sections of the extrusion plate being chamfered.

[0011] Furthermore, a side frame is fixedly installed on one side surface of the extrusion channel, and a cylinder is fixedly installed on the other end of the side frame. A blocking plate is fixedly connected to the other end of the piston rod of the cylinder, and a cutting blade is fixedly installed on the other side surface of the blocking plate, cutting through the second side opening.

[0012] Furthermore, a second sealing gasket is adhered to the inner wall of the second side opening, and the inner surface of the second sealing gasket slides against the cutting blade.

[0013] Furthermore, the length of the cutting blade is equal to the internal length of the extrusion channel, and the width of the cutting blade is greater than the internal width of the extrusion channel.

[0014] Furthermore, a connecting pipe is connected through one side of the top of the extrusion die body, and the connecting pipe is connected through a flange to the output end of the extruder.

[0015] Compared with the prior art, the present invention provides an extrusion die for extruded polystyrene boards, which has the following advantages:

[0016] (1) This utility model adopts two sets of L-shaped extrusion plates. The extrusion plate includes a vertical section and a horizontal section. When adjusting the thickness of the extruded board, the operator can start the electric cylinder to extend and retract, which drives the extrusion plate to move. The vertical section of the extrusion plate moves inward, so that the thickness of the extruded board is reduced when it is extruded. The vertical section of the extrusion plate moves outward, so that the thickness of the extruded board is increased when it is extruded. When the vertical section of the extrusion plate moves, the horizontal section of the extrusion plate always slides and abuts against the first sealing ring to complete the seal and avoid material leakage. The extrusion thickness of the extruded board can be changed without changing the mold. The adjustment is very convenient and simple.

[0017] (2) This utility model uses a cutting blade. When the extruded board is extruded to a set length, the cylinder extends and pushes the other end of the cutting blade to abut against the inner wall of the extrusion channel to complete the rapid flow interruption and cut during extrusion, reducing the amount of cutting work in the later stage. Only trimming is needed in the later stage. At this time, the extruded board material is still in liquid state. The cylinder extension and retraction speed is faster than that of the traditional cutting blade, thereby improving the cutting efficiency and improving the work efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the internal structure of an extrusion die for extruded boards proposed in this utility model;

[0020] Figure 2 This is a side view of an extrusion die for extruded polystyrene board proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the external structure of an extrusion die for extruded boards proposed in this utility model;

[0022] Figure 4 This is an enlarged view of node A of an extrusion die for extruded polystyrene board proposed in this utility model.

[0023] In the picture:

[0024] 1. Extrusion die body; 2. Extrusion channel; 3. Electric cylinder; 4. Vertical section of extrusion plate; 5. Horizontal section of extrusion plate; 6. Side frame; 7. Cylinder; 8. Cut-off blade; 9. Connecting pipe; 10. First side opening; 11. Blocking plate; 12. First sealing gasket; 13. Second side opening; 14. Second sealing gasket. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] According to an embodiment of the present invention, an extrusion die for extruded polystyrene board is provided.

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, an extrusion die for extruded polystyrene board according to an embodiment of the present invention includes an extrusion die body 1 and an extrusion channel 2. The extrusion die body 1 has an extrusion channel 2 that is connected through to the bottom surface. The surface of the extrusion channel 2 has a first side opening 10 and a second side opening 13. A horizontal section 5 of an extrusion plate is connected through to the inside of the first side opening 10. One end of the horizontal section 5 of the extrusion plate is located inside the extrusion channel 2 and connected to a vertical section 4 of the extrusion plate. The bottom surface of the vertical section 4 of the extrusion plate is flush with the bottom surface of the extrusion channel 2. An electric cylinder 3 is fixedly installed on the outer wall of the extrusion channel 2, and the other end of the moving rod of the electric cylinder 3 is connected to... The vertical section 4 of the extrusion plate is fixedly connected. The extrusion plate includes the vertical section 4 and the horizontal section 5. When adjusting the thickness of the extruded board, the operator can activate the electric cylinder 3 to extend and retract, driving the extrusion plate to move. The vertical section 4 of the extrusion plate moves inward, reducing the thickness of the extruded board during extrusion. The vertical section 4 of the extrusion plate moves outward, increasing the thickness of the extruded board during extrusion. When the vertical section 4 of the extrusion plate moves, the horizontal section 5 of the extrusion plate always slides and abuts against the first sealing ring to complete the seal and prevent material leakage. The extrusion thickness of the extruded board can be changed without changing the mold, making adjustment very convenient and simple.

[0028] In one embodiment, a first sealing gasket 12 is fixedly installed on the inner wall of the first side opening 10, and the inner surface of the first sealing gasket 12 slides against the horizontal section 5 of the extrusion plate to achieve a sealing effect.

[0029] In one embodiment, the width of the vertical section 4 and the horizontal section 5 of the extrusion plate is equal to the internal length of the extrusion channel 2, and the two ends of the vertical section 4 and the horizontal section 5 of the extrusion plate slide against the inner wall of the extrusion channel 2 to avoid material leakage at the edges.

[0030] In one embodiment, the vertical section 4 and the horizontal section 5 of the extrusion plate are in an L-shaped structure and are an integral structure. The connection between the vertical section 4 and the horizontal section 5 is chamfered and polished to improve the continuity and stability of the output.

[0031] In one embodiment, a side frame 6 is fixedly installed on one side surface of the extrusion channel 2, and a cylinder 7 is fixedly installed on the other end of the side frame 6. A blocking plate 11 is fixedly connected to the other end of the piston rod of the cylinder 7. A cutting blade 8 is fixedly installed on the other side surface of the blocking plate 11, cutting through to the second side opening 13. A second sealing gasket 14 is adhered to the inner wall of the second side opening 13, and the inner surface of the second sealing gasket 14 slides against the cutting blade 8 to provide a sealing effect. When the extruded board is extruded to a set length, the cylinder 7 extends, pushing the other end of the cutting blade 8 to abut against the inner wall of the extrusion channel 2 to complete the rapid flow interruption and cut during extrusion, reducing the amount of subsequent cutting work. Only trimming is required later. At this time, the extruded board material is still liquid. The cylinder 7 extends and retracts faster than the traditional cutting blade, thereby improving cutting efficiency and work efficiency.

[0032] In one embodiment, the length of the cutting blade 8 is equal to the internal length of the extrusion channel 2, and the width of the cutting blade 8 is greater than the internal width of the extrusion channel 2, to prevent material leakage from the edge of the cutting blade 8.

[0033] In one embodiment, a connecting pipe 9 is connected through one side of the top of the extrusion die body 1, and the connecting pipe 9 is connected through a flange to the output end of the extruder for easy docking and installation.

[0034] Working principle:

[0035] The extrusion plate includes a vertical section 4 and a horizontal section 5. When adjusting the thickness of the extruded board, the operator can activate the electric cylinder 3 to extend and retract, driving the extrusion plate to move. The vertical section 4 moves inward, reducing the thickness of the extruded board during extrusion, and moves outward, increasing the thickness of the extruded board during extrusion. When the vertical section 4 moves, the horizontal section 5 always slides and abuts against the first sealing ring to complete the seal and prevent material leakage. The extrusion thickness of the extruded board can be changed without changing the mold, making adjustment very convenient and simple. At the same time, when the extruded board is extruded to the set length, the cylinder 7 extends, pushing the other end of the cutting blade 8 to abut against the inner wall of the extrusion channel 2 to quickly cut off the flow and cut during extrusion, reducing the amount of subsequent cutting work. Only trimming is needed later. At this time, the extruded board raw material is still in a liquid state. The extension and retraction speed of the cylinder 7 is faster than that of the traditional cutting blade, thereby improving cutting efficiency and work efficiency.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An extrusion die for extruded sheets, characterized by, Including extrusion mould body (1) and extrusion channel (2), the extrusion mould body (1) bottom surface is connected with extrusion channel (2) through, and extrusion channel (2) surface is provided with first side mouth (10) and second side mouth (13), and the inside of first side mouth (10) is connected with extrusion plate horizontal section (5) through, extrusion plate horizontal section (5) one end is located in extrusion channel (2) inside and is connected with extrusion plate vertical section (4), and extrusion channel (2) outer wall is fixedly installed with electric cylinder (3), and the moving rod other end of electric cylinder (3) is fixedly connected with extrusion plate vertical section (4).

2. The extrusion die for extruded sheets according to claim 1, wherein First sealing washer (12) is fixedly installed on the inner wall of first side mouth (10), and the inner side surface of first sealing washer (12) is in sliding abutment with extrusion plate horizontal section (5).

3. The extrusion die for extruded sheets according to claim 1, wherein The width of extrusion plate vertical section (4) and extrusion plate horizontal section (5) is equal to the length of extrusion channel (2) inside, and the two ends of extrusion plate vertical section (4) and extrusion plate horizontal section (5) are in sliding abutment with the inner wall of extrusion channel (2).

4. The extrusion die for extruded sheets according to claim 1, wherein Extrusion plate vertical section (4) and extrusion plate horizontal section (5) are integrally formed, and the connecting portion of extrusion plate vertical section (4) and extrusion plate horizontal section (5) is chamfered.

5. The extrusion die for extruded sheets according to claim 1, wherein Side frame (6) is fixedly installed on one side surface of extrusion channel (2), and air cylinder (7) is fixedly installed on the other end of side frame (6), and the piston rod of air cylinder (7) is fixedly connected with blanking plate (11) on the other end, and cutting knife (8) is fixedly installed on the other side surface of blanking plate (11), and cutting knife (8) penetrates second side mouth (13).

6. An extrusion die for extruded sheets according to claim 5, wherein Second sealing washer (14) is bonded on the inner wall of second side mouth (13), and the inner side surface of second sealing washer (14) is in sliding abutment with cutting knife (8).

7. The extrusion die for extruded sheets according to claim 5, wherein The length of cutting knife (8) is equal to the length of extrusion channel (2) inside, and the width of cutting knife (8) is greater than the width of extrusion channel (2) inside.

8. The extrusion die for extruded sheets according to claim 1, wherein The top side surface of extrusion mould body (1) is connected with connecting pipe (9) through, and connecting pipe (9) is connected with the output end of extruder through flange.

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