Energy-saving type film extruder

Abstract

The utility model relates to a membrane extrusion technical field, and disclose a kind of energy-saving membrane extruder, including extruder shell, the right side of extruder shell is connected with extrusion piece, the lower surface of extrusion piece is equipped with cooling mechanism for cooling molding raw material, the left side of extrusion piece is equipped with conveying mechanism for conveying raw material;The cooling mechanism includes liquid storage tank, the lower surface of extrusion piece is fixed in liquid storage tank, one side of liquid storage tank is communicated with circulating pump by pipeline, the output of circulating pump is communicated with conveying pipe, the end of conveying pipe is communicated with the flow cavity opened in the inside of extrusion piece.The utility model stores heat exchange liquid by liquid storage tank, circulating pump extracts heat exchange liquid, conveying pipe is conveyed to flow cavity, so that heat exchange liquid flows in flow cavity, can absorb the heat of extrusion piece, and extrusion piece absorbs the heat of raw material, can indirectly cool raw material, ensure that it is not easy to deform after molding.

Description

Technical Field

[0001] This utility model relates to the field of coating extrusion technology, specifically an energy-saving coating extruder. Background Technology

[0002] A coating extruder, also known as an extrusion laminating machine or casting machine, is a type of extrusion molding machinery. The coating extruder process involves plasticizing plastic particles via a screw and then extruding them through a flat die in a streamlined molten state. After stretching, the molten particles adhere to the surface of flexible substrates such as paper, film, non-woven fabric, and woven fabric. After cooling and shaping, the resulting composite material combines the barrier and heat-sealing properties of a plastic film with the strength and functional properties of the substrate. In another example, POE granules are placed in a hopper and fed into the extruder via a conveyor. The POE granules are heated and melted in the extruder, forming a molten POE melt. This molten POE melt is then evenly coated onto the substrate through the extrusion head, forming a thin film.

[0003] In existing technologies, such as the front-end feeding extruder of a coating machine disclosed in CN218314803U, there is a base, an extruder body located at the upper end of the base; an elongated block located at the upper end of the extruder body; a docking box fixedly connected to the upper end of the extruder body; a conical cylinder fixedly connected to the upper end of the docking box; and a second hollow groove located at one side of the docking box. By starting the motor and driving the stirring rod, the stirring rod can mix the raw materials. The material is temporarily prevented from entering the extruder body by a limiting plate. After the material is mixed, the limiting plate is removed, allowing the mixed material to enter the extruder body through the elongated block. This ensures the mixed material can be used normally and prevents uneven mixing.

[0004] Existing extruders operate by starting a motor that drives a stirring rod. After the raw materials are mixed, a limit plate is removed, allowing the mixed material to enter the extruder body through a long block. However, after extrusion, it is inconvenient to cool and shape the material, resulting in excessively high temperatures and potential deformation, thus limiting its practicality. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technology has the problem that it is inconvenient to cool and shape the material after extrusion, resulting in excessively high temperature of the material after extrusion and easy deformation, it has poor practicality.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An energy-saving coating extruder includes an extruder housing, an extruder part connected to the right side of the extruder housing, a cooling mechanism for cooling the molding raw material on the lower surface of the extruder part, and a conveying mechanism for conveying the raw material on the left side of the extruder part.

[0009] The cooling mechanism includes a liquid storage tank, which is fixed to the lower surface of the extruder. A circulation pump is connected to one side of the liquid storage tank via a pipe. The output end of the circulation pump is connected to a delivery pipe, and the end of the delivery pipe is connected to a flow cavity opened inside the extruder.

[0010] As a further embodiment of this utility model: the side wall of the extruder is provided with a reflux pipe that communicates with the flow cavity, and the end of the reflux pipe is communicated with the liquid storage tank.

[0011] As a further improvement of this utility model: several heat pipes are installed at the lower end of the inside of the liquid storage tank, and the lower surface of the heat pipes penetrates the outer wall of the liquid storage tank and is fixed with heat dissipation fins.

[0012] As a further embodiment of this utility model: the lower surface of the heat dissipation fins is fixed with a fixing plate by screws, and two cooling fans (38) are installed inside the fixing plate.

[0013] As a further improvement of this utility model, the extruder has an extrusion cavity that communicates with the extruder housing.

[0014] As a further improvement of this utility model, the upper surface of the extruder shell is connected to a feed inlet.

[0015] As a further embodiment of this utility model: the conveying mechanism includes a driving component, which is fixed on the left side of the extruder housing, and a drive motor is fixed to the left side of the driving component by bolts.

[0016] As a further improvement of this utility model: the power output shaft of the drive motor passes through the inner wall of the drive component and is fixed with a drive gear, and driven gears mesh on both sides of the drive gear.

[0017] As a further embodiment of this utility model: a transmission rod is fixed to the inner wall of the driven gear, and the end of the transmission rod penetrates the inner wall of the extruder housing and is fixed with a screw.

[0018] As a further improvement of this utility model, several heating elements are installed inside the extruder housing.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model stores heat exchange liquid in a storage tank and pumps it out through a circulation pump. The heat exchange liquid is then transported to the flow chamber through a delivery pipe. When the heat exchange liquid flows in the flow chamber, it can absorb the heat of the extruded part. The extruded part absorbs the heat of the raw material, which can indirectly cool the raw material and ensure that it is not easily deformed after molding.

[0021] 2. This utility model can absorb heat from the heat exchange fluid by setting a heat pipe, transfer the heat to the heat dissipation fins, and then cool the heat exchange fluid by blowing air through the heat dissipation fins through the heat dissipation fan on the fixed plate, thus ensuring the circulation effect of the heat exchange fluid.

[0022] 3. This utility model uses a drive motor to drive the active gear to mesh with the driven gear, so that the two driven gears are driven to rotate synchronously. This eliminates the need for two motors, making it more energy-efficient. In turn, it drives the transmission rod to rotate, which can synchronously drive the two screws to transport the raw materials. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of an energy-saving coating extruder;

[0024] Figure 2 This is a schematic cross-sectional view of the extruder casing in an energy-saving coating extruder;

[0025] Figure 3 This is a schematic diagram of the internal structure of the drive component in an energy-saving coating extruder;

[0026] Figure 4 This is a three-dimensional structural diagram of an extruded part in an energy-saving coating extruder;

[0027] Figure 5 This is a schematic cross-sectional view of an extruded part in an energy-saving coating extruder.

[0028] In the diagram: 1. Extruder housing; 2. Extruded part; 3. Liquid storage tank; 31. Circulating pump; 32. Delivery pipe; 33. Flow chamber; 34. Return pipe; 35. Heat pipe; 36. Heat dissipation fins; 37. Fixed plate; 38. Cooling fan; 4. Extrusion chamber; 5. Feed inlet; 6. Drive component; 61. Drive motor; 62. Drive gear; 63. Driven gear; 64. Transmission rod; 65. Screw; 7. Heating component. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0032] Please see Figures 1-5 This embodiment provides an energy-saving coating extruder, which includes an extruder housing 1, an extruder 2 connected to the right side of the extruder housing 1, a cooling mechanism for cooling the molding raw material on the lower surface of the extruder 2, and a conveying mechanism for conveying the raw material on the left side of the extruder 2.

[0033] The cooling mechanism includes a liquid storage tank 3, which is fixed to the lower surface of the extruder 2. A circulation pump 31 is connected to one side of the liquid storage tank 3 via a pipe. The output end of the circulation pump 31 is connected to a conveying pipe 32. The end of the conveying pipe 32 is connected to a flow cavity 33 opened inside the extruder 2. An extrusion cavity 4 is opened inside the extruder 2 and communicates with the extruder housing 1. A feed port 5 is connected to the upper surface of the extruder housing 1.

[0034] Specifically, the side wall of the extruder 2 is provided with a return pipe 34 that communicates with the flow cavity 33, and the end of the return pipe 34 is communicated with the liquid storage tank 3.

[0035] Furthermore, when the heat exchange fluid flows in the flow chamber 33, it can absorb the heat of the extruder 2, and the extruder 2 absorbs the heat of the raw material, which can indirectly cool the raw material and ensure that it is not easily deformed after molding.

[0036] Specifically, several heat pipes 35 are installed at the lower end of the inside of the liquid storage tank 3. The lower surface of the heat pipes 35 penetrates the outer wall of the liquid storage tank 3 and is fixed with heat dissipation fins 36.

[0037] Furthermore, by setting up heat pipe 35, heat in the heat exchange fluid can be absorbed and transferred to heat dissipation fins 36.

[0038] Specifically, a mounting plate 37 is fixed to the lower surface of the heat dissipation fins 36 by screws, and two cooling fans 38 are installed inside the mounting plate 37.

[0039] Furthermore, the cooling fan 38 on the fixed plate 37 blows air onto the heat dissipation fins 36, thereby cooling the heat exchange fluid and ensuring the circulation effect of the heat exchange fluid.

[0040] In use, the extruder housing 1 is placed in a suitable position, and the heat exchange fluid is stored in the storage tank 3. The circulating pump 31 draws out the heat exchange fluid and delivers it to the flow chamber 33 through the delivery pipe 32. When the heat exchange fluid flows in the flow chamber 33, it can absorb the heat of the extruded part 2. The extruded part 2 absorbs the heat of the raw material, which can indirectly cool the raw material and ensure that it is not easily deformed after molding. By continuously delivering the heat exchange fluid into the flow chamber 33, the heat-carrying heat exchange fluid can flow back into the storage tank 3 through the return pipe 34 for recycling. In addition, by setting the heat pipe 35, the heat in the heat exchange fluid can be absorbed and transferred to the heat dissipation fins 36. The heat dissipation fan 38 on the fixing plate 37 blows air onto the heat dissipation fins 36, thereby cooling the heat exchange fluid and ensuring the circulation effect of the heat exchange fluid. Furthermore, a heat insulation pad can be set at the connection between the storage tank 3 and the extruded part 2 to effectively reduce the direct transfer of heat from the extruded part 2 to the storage tank 3.

[0041] In summary, when this energy-saving coating extruder is in use, the heat exchange liquid is stored in the storage tank 3, and the circulating pump 31 draws out the heat exchange liquid and delivers it to the flow chamber 33 through the delivery pipe 32. When the heat exchange liquid flows in the flow chamber 33, it can absorb the heat of the extruded part 2. The extruded part 2 absorbs the heat of the raw material, which can indirectly cool the raw material and ensure that it is not easily deformed after molding.

[0042] The conveying mechanism includes a drive component 6, which is fixed to the left side of the extruder housing 1. A drive motor 61 is fixed to the left side of the drive component 6 by bolts.

[0043] Furthermore, the drive motor 61 drives the driving gear 62 to mesh with the driven gear 63 and rotate, so that the two driven gears 63 are driven to rotate synchronously, thereby driving the transmission rod 64 to rotate.

[0044] Specifically, the power output shaft of the drive motor 61 passes through the inner wall of the drive component 6 and is fixed with a drive gear 62. Both sides of the drive gear 62 are meshed with driven gears 63. The inner wall of the driven gear 63 is fixed with a transmission rod 64. The end of the transmission rod 64 passes through the inner wall of the extruder housing 1 and is fixed with a screw 65.

[0045] Furthermore, the raw materials are transported by the synchronous operation of two screws 65, and the molten raw materials are transported to the extruder 2 for extrusion molding.

[0046] Specifically, several heating elements 7 are installed inside the extruder housing 1.

[0047] Furthermore, the raw material is heated and melted by the heating element 7 inside the extruder housing 1.

[0048] In use, the raw material to be processed is poured into the extruder housing 1 through the feed port 5. The heating element 7 inside the extruder housing 1 heats and melts the raw material, and the drive motor 61 on the drive unit 6 starts, which drives the drive gear 62 to mesh with the driven gear 63 to rotate, so that the two driven gears 63 are driven to rotate synchronously, thereby driving the transmission rod 64 to rotate. At this time, the two screws 65 can be driven to run synchronously to transport the raw material. When the molten raw material is transported into the extruder 2, it is squeezed by the continuously transported raw material in the front through the extrusion chamber 4 in the extruder 2, so that the raw material in the front is shaped when it passes through the extrusion chamber 4.

[0049] In summary, when this energy-saving coating extruder is in use, the heat exchange liquid is stored in the storage tank 3, and the circulating pump 31 draws out the heat exchange liquid and delivers it to the flow chamber 33 through the delivery pipe 32. When the heat exchange liquid flows in the flow chamber 33, it can absorb the heat of the extruded part 2. The extruded part 2 absorbs the heat of the raw material, which can indirectly cool the raw material and ensure that it is not easily deformed after molding. Furthermore, by setting the heat pipe 35, the heat in the heat exchange liquid can be absorbed and transferred to the heat dissipation fins 36. The heat dissipation fan 38 on the fixed plate 37 blows air onto the heat dissipation fins 36, thereby cooling the heat exchange liquid and ensuring the circulation effect of the heat exchange liquid.

[0050] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0051] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0052] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An energy-saving coating extruder, comprising an extruder housing (1), characterized in that: The extruder housing (1) is connected to an extruder component (2) on the right side. The lower surface of the extruder component (2) is provided with a cooling mechanism for cooling the molding raw material. The left side of the extruder component (2) is provided with a conveying mechanism for conveying the raw material. The cooling mechanism includes a liquid storage tank (3), which is fixed on the lower surface of the extruder (2). A circulation pump (31) is connected to one side of the liquid storage tank (3) through a pipe. The output end of the circulation pump (31) is connected to a delivery pipe (32), and the end of the delivery pipe (32) is connected to a flow cavity (33) opened inside the extruder (2).

2. The energy-saving coating extruder according to claim 1, characterized in that: The side wall of the extruder (2) is provided with a return pipe (34) that communicates with the flow chamber (33), and the end of the return pipe (34) is communicated with the liquid storage tank (3).

3. The energy-saving coating extruder according to claim 2, characterized in that: The lower end of the liquid storage tank (3) is equipped with several heat pipes (35), and the lower surface of the heat pipes (35) penetrates the outer wall of the liquid storage tank (3) and is fixed with heat dissipation fins (36).

4. The energy-saving coating extruder according to claim 3, characterized in that: The lower surface of the heat dissipation fins (36) is fixed with a fixing plate (37) by screws, and two cooling fans (38) are installed inside the fixing plate (37).

5. An energy-saving coating extruder according to claim 4, characterized in that: The extruder (2) has an extrusion cavity (4) that communicates with the extruder housing (1).

6. The energy-saving coating extruder according to claim 5, characterized in that: The upper surface of the extruder housing (1) is connected to the feed inlet (5).

7. An energy-saving coating extruder according to claim 6, characterized in that: The conveying mechanism includes a drive component (6), which is fixed to the left side of the extruder housing (1). A drive motor (61) is fixed to the left side of the drive component (6) by bolts.

8. An energy-saving coating extruder according to claim 7, characterized in that: The power output shaft of the drive motor (61) passes through the inner wall of the drive member (6) and is fixed with a drive gear (62). Both sides of the drive gear (62) are meshed with driven gears (63).

9. An energy-saving coating extruder according to claim 8, characterized in that: The inner wall of the driven gear (63) is fixed with a transmission rod (64), and the end of the transmission rod (64) penetrates the inner wall of the extruder housing (1) and is fixed with a screw (65).

10. An energy-saving coating extruder according to claim 9, characterized in that: The extruder housing (1) is equipped with several heating elements (7).

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