Extrusion device for producing extruded thermal insulation boards

Abstract

The utility model discloses an extruding device of extruded heat -preserving board production belongs to heat -preserving board production technical field, including gear box and extruding screw, the output shaft key connection of gear box has the second connecting frame, and the one side of second connecting frame integrative has a plurality of fixed tubes, and the fixed tube is inserted with the slide bar of interference, the input end of extruding screw is inserted with the first connecting frame of interference, and the one end of first connecting frame is equipped with a plurality of arc grooves towards second connecting frame, and the one end of slide bar inserts into arc groove, and the one end of fixed tube is connected with the screw cap of thread, the utility model discloses the cooperation of slide bar and arc groove is used, can steady transmission power and can cut off power under abnormal condition fast double protection mechanism, greatly reduces the failure rate of equipment under the complex production environment, prolongs the service life of gear box and extruding screw.

Description

Technical Field

[0001] This utility model relates to the field of insulation board production technology, and more specifically, to an extrusion device for producing extruded insulation boards. Background Technology

[0002] The extruded polystyrene (XPS) board production line mainly uses two-stage extruders connected in series. The first-stage extruder (such as a 75 parallel twin-screw extruder) is mainly used for plasticizing and preliminary mixing of raw materials, where the materials are heated and melted. The second-stage extruder (such as a 150 extruder) is responsible for cooling and further mixing, where the high-pressure injected foaming agent is fully mixed with the molten raw materials and cooled to a suitable foaming temperature.

[0003] Currently, the extrusion screw and gearbox on extruders are mostly connected by couplings. When the extruder is clogged, the force on the extrusion screw increases, which increases the load on the gears in the gearbox and can easily cause accelerated wear of the gears in the gearbox, thus affecting the life of the gearbox. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide an extrusion device for the production of extruded insulation boards, which aims to solve the problems mentioned in the background art.

[0005] The present invention adopts the following technical solution: an extrusion device for producing extruded insulation board, comprising a gearbox and an extrusion screw, wherein the output shaft of the gearbox is keyed to a second connecting frame, and a plurality of fixed tubes are integrally formed on one side of the second connecting frame, wherein a slide rod is interference-fitted into the fixed tube, and a first connecting frame is interference-fitted into the input end of the extrusion screw, wherein a plurality of arc-shaped grooves are opened on one end of the first connecting frame facing the second connecting frame, and one end of the slide rod is inserted into the arc-shaped groove, and a threaded cap is threadedly connected to one end of the fixed tube.

[0006] As a preferred embodiment of this utility model, the outer circumferential wall of the second connecting frame is threaded with a mounting bracket, and the first connecting frame is located between the mounting bracket and the second connecting frame.

[0007] As a preferred embodiment of this utility model, a through hole is provided on one side of the mounting bracket, and a threaded hole is provided on the side of the second connecting bracket that contacts the mounting bracket, with a fixing screw threaded into the threaded hole and passing through the through hole.

[0008] As a preferred embodiment of this utility model, the inner circumference of the fixed tube is provided with an installation groove, a rubber ring is placed in the installation groove and the rubber ring is fitted on the slide rod, and a limit groove is provided on the outer circumference of the slide rod.

[0009] As a preferred embodiment of this utility model, the top of the first connecting frame is provided with a first positioning port, and the top of the second connecting frame is provided with a second positioning port.

[0010] As a preferred embodiment of this utility model, the inner wall of one side of the threaded cap is provided with an easy-break groove, and the easy-break groove is annular.

[0011] As a preferred embodiment of this utility model, the diameter of the easily broken groove is not less than the diameter of the slide rod.

[0012] As a preferred embodiment of this utility model, the fixing screw is an anti-loosening bolt.

[0013] Beneficial effects Compared with existing technologies, the advantages of this utility model are: 1. This utility model, through the combined use of the slide bar and the arc-shaped groove, provides a dual guarantee mechanism that can stably transmit power and quickly cut off power in abnormal situations, greatly reducing the failure rate of the equipment in complex production environments and extending the service life of the gearbox and extrusion screw.

[0014] 2. By providing a threaded cap, this utility model can effectively prevent the slide bar from falling out of the fixed tube, ensuring the stability and reliability of the connection structure and ensuring that the entire extrusion device maintains a good working condition during long-term operation.

[0015] 3. By providing an easy-break groove, this utility model not only ensures the structural integrity of the threaded cover under normal use, but also enables a quick and effortless breaking operation when the slide rod needs to extend, avoiding the situation where the slide rod cannot break through smoothly due to the excessive strength of the threaded cover. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a partial cross-sectional view of the present invention; Figure 3 This is an enlarged view of part A of the present invention; Figure 4 This is a partially enlarged view of the present invention.

[0017] Explanation of the labels in the diagram: 1. Gearbox; 2. Extrusion screw; 3. First connecting frame; 4. Mounting frame; 5. Fixing screw; 6. Arc-shaped groove; 7. First positioning port; 8. Second positioning port; 9. Fixing tube; 10. Threaded cap; 11. Slide rod; 12. Second connecting frame; 13. Rubber ring; 14. Mounting groove; 15. Limiting groove; 16. Easily broken groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Example: Please see Figure 1-4 An extrusion device for producing extruded insulation board includes a gearbox 1 and an extrusion screw 2. The output shaft of the gearbox 1 is keyed to a second connecting frame 12. A plurality of fixed tubes 9 are integrally formed on one side of the second connecting frame 12. A slide rod 11 is interference-fitted into the fixed tube 9. A first connecting frame 3 is interference-fitted into the input end of the extrusion screw 2. A plurality of arc-shaped grooves 6 are opened on one end of the first connecting frame 3 facing the second connecting frame 12, and one end of the slide rod 11 is inserted into the arc-shaped groove 6. A threaded cap 10 is threadedly connected to one end of the fixed tube 9. The sliding rod 11 and the arc-shaped groove 6 are designed to apply torque to the first connecting frame 3 through the sliding rod 11 when the gearbox 1 drives the second connecting frame 12 to rotate, thereby driving the extrusion screw 2 to rotate synchronously and realizing the extrusion and conveying of materials. When the extruder is blocked, the rotational torque of the extrusion screw 2 increases, which causes the slide bar 11 to slide relative to the arc groove 6. At this time, the slide bar 11 will shift to one side along the inner wall of the arc groove 6 until one end of the slide bar 11 moves out of the arc groove 6, thus releasing the power transmission between the first connecting frame 3 and the second connecting frame 12. This can effectively prevent damage to the components of the gearbox 1 or the extrusion screw 2 due to excessive torque. After the blockage problem is relieved, use a hammer to re-clamp the slide bar 11 into the arc groove 6, so that the extrusion screw 2 can return to normal rotation, ensuring the continuity and stability of extruded insulation board production. Meanwhile, the threaded cap 10 can effectively prevent the slide rod 11 from falling out of the fixed tube 9, ensuring the stability and reliability of the connection structure and ensuring that the entire extrusion device maintains a good working condition during long-term operation; and the threaded cap 10 is made of plastic, so when the torque is too large, the slide rod 11 will break through the threaded cap 10, allowing the slide rod 11 to slide normally, avoiding the slide rod 11 being unable to disengage from the arc groove 6 in time due to the rigid obstruction of the threaded cap 10, further improving the timeliness and effectiveness of overload protection; This design cleverly combines mechanical transmission with overload protection. Through the dynamic cooperation between the slide bar 11 and the arc-shaped groove 6, and the special material selection of the threaded cover 10, a dual protection mechanism is formed that can stably transmit power and quickly cut off power in abnormal situations. This greatly reduces the failure rate of the equipment in complex production environments, extends the service life of the gearbox 1 and the extrusion screw 2, and also reduces the production interruption time caused by equipment maintenance. It is of great significance for improving the production efficiency and product quality of extruded insulation boards.

[0022] In this utility model, the outer circumferential wall of the second connecting frame 12 is threaded with a mounting frame 4, and the first connecting frame 3 is located between the mounting frame 4 and the second connecting frame 12; The mounting frame 4 provides a stable support base for the first connecting frame 3, enabling the first connecting frame 3 to maintain a relatively fixed positional relationship between the mounting frame 4 and the second connecting frame 12. This ensures that when the gearbox 1 transmits power to the extrusion screw 2 through the first connecting frame 3 and the second connecting frame 12, the power transmission path is more stable and reliable, effectively avoiding problems such as power transmission loss or equipment vibration caused by the offset of the connecting parts. Meanwhile, the mounting bracket 4 and the second connecting bracket 12 are connected by threads, which not only facilitates installation and disassembly and makes equipment maintenance and repair convenient, but also allows for flexible adjustment of the position of the mounting bracket 4 on the second connecting bracket 12 according to actual installation needs, thereby enhancing the adaptability and versatility of the entire connection structure and expanding the scope of application of the equipment.

[0023] Furthermore, a through hole is provided on one side of the mounting bracket 4, and a threaded hole is provided on the side of the second connecting bracket 12 that contacts the mounting bracket 4. A fixing screw 5 passing through the through hole is threaded into the threaded hole. The fixing screw 5 is an anti-loosening bolt. The fixing screw 5, through the cooperation of the through hole and the threaded hole, tightly locks the mounting bracket 4 and the second connecting bracket 12. This double fixing structure further enhances the stability of the connection between the two, and can effectively resist the torque and impact generated during the operation of the equipment, preventing the mounting bracket 4 from loosening or rotating on the second connecting bracket 12, thereby affecting the cooperation between the slide rod 11 and the arc groove 6.

[0024] As a further embodiment of this utility model, the inner circumferential wall of the fixing tube 9 is provided with an installation groove 14, a rubber ring 13 is placed in the installation groove 14, and the rubber ring 13 is fitted on the slide rod 11. The outer circumferential wall of the slide rod 11 is provided with a limiting groove 15. The inner edge of the rubber ring 13 can be embedded in the limiting groove 15 to form a radial limit on the slide rod 11, which can prevent the slide rod 11 from falling directly out of the fixed tube 9 when it is worn too much; it can also play a sealing role to prevent external dust, moisture and other impurities from entering the fixed tube 9, thus avoiding affecting the sliding accuracy and service life of the slide rod 11.

[0025] Furthermore, the top of the first connecting frame 3 is provided with a first positioning port 7, and the top of the second connecting frame 12 is provided with a second positioning port 8; The positions of the first positioning port 7 and the second positioning port 8 correspond to each other, realizing the initial positioning of the first connecting frame 3 and the second connecting frame 12 during the installation process, ensuring that the two can be quickly aligned in the subsequent fixing operation, reducing installation deviation and improving assembly efficiency.

[0026] Furthermore, an easy-break groove 16 is provided on one side of the inner wall of the threaded cover 10. The easy-break groove 16 is an annular structure, which allows the slide rod 11 to break the threaded cover 10 more easily. When the slide rod 11 is pushed by an external force, its end can accurately act on the weak area where the easy-break groove 16 is located, and the threaded cover 10 will break and separate along the annular easy-break groove 16 by concentrating stress. This design ensures the structural integrity of the threaded cover 10 under normal use, and enables a quick and effortless breaking operation when the slide bar 11 needs to extend, avoiding the situation where the slide bar 11 cannot break through smoothly due to the excessive strength of the threaded cover 10. The diameter of the easy-break groove 16 is not less than the diameter of the slide bar 11. This design parameter ensures that the end of the slide bar 11 can completely cover the annular area of ​​the easy-break groove 16, so that the stress is evenly distributed throughout the weak link during the fracture process, avoiding the fracture position shift or the remaining unbroken connection part due to insufficient contact area.

[0027] The specific steps of using this utility model are as follows: The matching arrangement of the slide bar 11 and the arc-shaped groove 6 enables the slide bar 11 to apply torque to the first connecting frame 3 when the gearbox 1 drives the second connecting frame 12 to rotate, thereby driving the extrusion screw 2 to rotate synchronously and realizing the extrusion and conveying of materials. When the extruder is blocked, the rotational torque of the extrusion screw 2 increases, which causes the slide bar 11 to slide relative to the arc groove 6. At this time, the slide bar 11 will shift to one side along the inner wall of the arc groove 6 until one end of the slide bar 11 moves out of the arc groove 6, thus releasing the power transmission between the first connecting frame 3 and the second connecting frame 12. This effectively prevents damage to the components of the gearbox 1 or extrusion screw 2 due to excessive torque. After the blockage problem is relieved, the slide bar 11 is re-engaged into the arc-shaped groove 6 using a hammer, thereby restoring the extrusion screw 2 to its normal rotation state and ensuring the continuity and stability of extruded insulation board production.

[0028] It should be noted that gearbox 1 and extrusion screw 2 are common components of extruders. In this utility model, gearbox 1 and extrusion screw 2 are only components of the example structure. Their specific models, specifications and basic working principles are consistent with those of conventional extruders, and no additional improvements have been made.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. An extrusion device for producing extruded insulation boards, comprising a gearbox (1) and an extrusion screw (2), characterized in that: The output shaft of the gearbox (1) is keyed to a second connecting frame (12). A plurality of fixed tubes (9) are integrally formed on one side of the second connecting frame (12). A slide rod (11) is interference-fitted into the fixed tube (9). A first connecting frame (3) is interference-fitted into the input end of the extrusion screw (2). A plurality of arc-shaped grooves (6) are opened on one end of the first connecting frame (3) facing the second connecting frame (12), and one end of the slide rod (11) is inserted into the arc-shaped groove (6). A threaded cap (10) is threadedly connected to one end of the fixed tube (9).

2. The extrusion apparatus for producing extruded insulation board according to claim 1, characterized in that: The second connecting frame (12) has a mounting frame (4) threadedly connected to its outer circumference, and the first connecting frame (3) is located between the mounting frame (4) and the second connecting frame (12).

3. The extrusion apparatus for producing extruded insulation board according to claim 2, characterized in that: The mounting bracket (4) has a through hole on one side, and the second connecting bracket (12) has a threaded hole on the side that contacts the mounting bracket (4). A fixing screw (5) that passes through the through hole is threaded into the threaded hole.

4. The extrusion apparatus for producing extruded insulation board according to claim 1, characterized in that: The inner circumference of the fixed tube (9) is provided with an installation groove (14), a rubber ring (13) is placed in the installation groove (14), and the rubber ring (13) is fitted on the slide rod (11). The outer circumference of the slide rod (11) is provided with a limit groove (15).

5. The extrusion apparatus for producing extruded insulation board according to claim 1, characterized in that: The first connecting frame (3) has a first positioning port (7) on its top, and the second connecting frame (12) has a second positioning port (8) on its top.

6. The extrusion apparatus for producing extruded insulation board according to claim 1, characterized in that: The inner wall of one side of the threaded cap (10) is provided with a breakable groove (16), which is a ring structure.

7. The extrusion apparatus for producing extruded insulation board according to claim 6, characterized in that: The diameter of the breakable groove (16) is not less than the diameter of the slide bar (11).

8. The extrusion apparatus for producing extruded insulation board according to claim 3, characterized in that: The fixing screw (5) is an anti-loosening bolt.

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