Novel extruder electromagnetic heater

Abstract

The utility model relates to a novel extruder electromagnetic heater, and relates to the field of plastic extruders. The heating device comprises a plurality of heating cylinders used for covering a machine cylinder, each heating cylinder comprises a plurality of connecting parts which are spliced with one another, the corresponding connecting parts of the same heating cylinder are connected through a first connecting device, and the corresponding connecting parts of the adjacent heating cylinders are connected through a second connecting device; a plurality of sections of wires are arranged in the connecting parts, the connecting parts corresponding to the same heating cylinder are spliced, so that the wires on the different connecting parts are communicated with one another and form a continuous spiral coil, the spiral coil is used for being arranged outside the machine cylinder in a sleeving manner, and the two ends of the spiral coil are connected with a heating power supply. The heating cylinder can be conveniently assembled and disassembled by an operator, and the maintenance difficulty is reduced.

Description

Technical Field

[0001] This application relates to the field of plastic extruders, and more particularly to a novel electromagnetic heater for extruders. Background Technology

[0002] In the operation of a plastic extruder, barrel heating is a crucial step. Traditional barrel heating methods often employ an integrated heating structure, where the heating element is directly fixed to the outer wall of the barrel, achieving heating and plasticizing of the material inside the barrel through overall heating. Because integrated heating structures are typically large and complex, repairing and replacing the heating element is difficult in case of malfunction. Utility Model Content

[0003] To facilitate the installation and disassembly of the heating cylinder and reduce maintenance difficulty, this application provides a novel electromagnetic heater for extruders.

[0004] This application provides a novel electromagnetic heater for an extruder, employing the following technical solution:

[0005] A novel electromagnetic heater for an extruder includes several heating cylinders for covering the barrel. Each heating cylinder includes multiple interconnected connecting parts. The connecting parts corresponding to the same heating cylinder are connected by a first connecting device, and the connecting parts corresponding to adjacent heating cylinders are connected by a second connecting device.

[0006] The connecting part is provided with several sections of wire. Multiple connecting parts corresponding to the same heating cylinder are spliced ​​together so that the wires on different connecting parts are connected to each other and form a continuous spiral coil. The spiral coil is used to be sleeved on the outside of the cylinder, and the two ends of the spiral coil are connected to the heating power supply.

[0007] By adopting the above technical solution, the barrel heating device features a detachable heating cylinder structure, allowing operators to easily assemble, disassemble, and maintain the heating cylinders and spiral coils at different locations. The heating cylinder is composed of multiple connecting parts spliced ​​together by a first connecting device. The wires within the connecting parts form a continuous spiral coil as the parts are joined. Multiple heating cylinders are connected by a second connecting device, which improves the uniformity of barrel heating. The spiral coils and heating cylinders at different locations on the barrel can be individually assembled and disassembled, facilitating maintenance by the operator.

[0008] Optionally, the first connecting device includes a plug disposed on the connecting part, and the connecting part has a slot. Among the multiple connecting parts corresponding to the same heating cylinder, the slot is used for the plug on the adjacent connecting part to be inserted, and the connecting part is installed in the corresponding slot by a first threaded component.

[0009] By adopting the above technical solution, using the combination of inserts and slots, it is convenient to position adjacent connecting parts of the same heating cylinder. The inserts are fixed in the slots by threaded parts, thereby achieving connection and improving the splicing accuracy and stability of the heating cylinders.

[0010] Optionally, the second connecting device includes a connecting plate disposed between two adjacent heating cylinders. Grooves are provided on the connecting parts of the same heating cylinder. When adjacent connecting parts of the same heating cylinder are spliced, the corresponding grooves of the two heating cylinders form a limiting groove. When adjacent heating cylinders are spliced, the two ends of the connecting plate are respectively located in the limiting grooves corresponding to the two adjacent heating cylinders. The connecting plate is connected to the corresponding limiting groove through a second threaded component.

[0011] By adopting the above technical solution, the second connecting device achieves a stable connection between adjacent heating cylinders through the cooperation of the connecting plate, groove, and limiting groove. The two ends of the connecting plate are respectively located within the limiting grooves corresponding to the two adjacent heating cylinders, achieving positioning between them. The connecting plate is connected to the corresponding connecting part via threaded components. This design not only improves the connection strength between the heating cylinders but also simplifies the assembly process.

[0012] Optionally, both ends of the connecting plate are provided with locking blocks, and each of the connecting parts is provided with a slot on the inner wall of the groove for the locking blocks to be inserted, so as to restrict the connecting plate from moving axially along the heating cylinder.

[0013] By adopting the above technical solution, and by setting locking blocks at both ends of the connecting plate and setting locking grooves on the inner wall of the groove in the connecting part, the second connecting device can further restrict the movement of the connecting plate along the axial direction of the heating cylinder. This design not only improves the connection stability between the heating cylinders, but also avoids the problem of the connecting plate loosening or falling off due to thermal expansion during heating, thereby ensuring the safety and reliability of the heating device.

[0014] Optionally, the inner wall of the connecting part is provided with a plurality of support blocks for supporting the barrel.

[0015] By adopting the above technical solution, a support block is set on the inner wall of the connection part to provide stable support for the barrel during the heating process, thereby improving the stability and safety of the heating device.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. The heating cylinder is formed by splicing multiple connecting parts together through a first connecting device. The wires in the connecting parts can form a continuous spiral coil as the connecting parts are spliced ​​together. Multiple heating cylinders are connected through a second connecting device, so that the heating spiral coils and heating cylinders at different positions of the cylinder can be installed and removed individually, which makes it convenient for the operator to inspect and maintain the heating cylinders and spiral coils at different positions.

[0018] 2. A support block is installed on the inner wall of the connection part to provide stable support for the barrel during the heating process, thereby improving the stability and safety of the heating device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0020] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle.

[0021] Figure 3 This is an exploded view of the conductor and support block used in the embodiments of this application.

[0022] Figure 4 This is a schematic diagram illustrating the structure of a helical coil in an embodiment of this application.

[0023] Figure 5 This is an exploded view of a spiral coil used in an embodiment of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Heating cylinder; 11. Connecting part; 2. First connecting device; 21. Splicing surface; 22. Insert block; 23. Slot; 3. Screw; 31. Through hole; 32. Threaded hole; 4. Second connecting device; 41. Connecting plate; 42. Groove; 43. Limiting groove; 44. Locking block; 45. Locking slot; 5. Wire; 51. Helical coil; 6. Support block. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0026] This application discloses a novel electromagnetic heater for extruders. For example... Figure 1 and Figure 2 The barrel heating device includes multiple heating cylinders 1 for covering the extruder barrel. Each heating cylinder 1 is composed of multiple interconnectable connecting parts 11. In the embodiments of this application, one heating cylinder 1 includes two connecting parts 11. The two connecting parts 11 corresponding to the same heating cylinder 1 are interconnected through a first connecting device 2 to form a complete section of heating cylinder 1 outer shell structure.

[0027] like Figure 2 and Figure 3The first connecting device 2 includes a plug 22 disposed on the connecting part 11, and the connecting part 11 is also provided with a slot 23 for engaging with the plug 22. Both connecting parts 11 corresponding to the same heating cylinder 1 are provided with a first splicing surface 21. When the two connecting parts 11 of the same heating cylinder 1 are spliced ​​together, the splicing surfaces 21 of the two connecting parts 11 are spliced ​​together, and the plug 22 and the slot 23 are both disposed on the splicing surfaces 21 of the corresponding connecting parts 11.

[0028] The insert 22 is connected to the slot 23 of the adjacent connecting part 11 by a first threaded component. The first threaded component includes a screw 3. The insert 22 is provided with a through hole 31, and the slot wall of the slot 23 is provided with a threaded hole 32. The screw 3 passes through the insertion hole on the insert 22 and is threadedly connected to the threaded hole 32 of the corresponding slot 23, so that the two connecting parts 11 are spliced ​​together to form a complete heating cylinder 1.

[0029] like Figure 1 and Figure 3 Adjacent heating cylinders 1 are connected by a second connecting device 4. The second connecting device 4 includes a connecting plate 41 disposed between two adjacent heating cylinders 1. Each heating cylinder 1 has a groove 42 on its connecting portion 11. When adjacent connecting portions 11 of the same heating cylinder 1 are spliced, the corresponding grooves 42 of the same heating cylinder 1 will form a limiting groove 43. When adjacent heating cylinders 1 are spliced, both ends of the connecting plate 41 will be inserted into the limiting grooves 43 of the two adjacent heating cylinders 1 respectively. The connecting plate 41 is connected to the corresponding connecting portion 11 by a second threaded component, thereby connecting the connecting plate 41 to the heating cylinder 1 and thus achieving the connection between the heating cylinders 1.

[0030] In this embodiment of the application, each limiting groove 43 is provided with at least one set of first connecting devices 2. The insert 22 and slot 23 on the connecting part 11 are located in the corresponding groove 42. The second threaded part and the first threaded part are the same component. The screw 3 passes through the connecting plate 41 and the insert 22 and is threadedly connected in the threaded hole 32. While realizing the splicing of two connecting parts 11 of the same heating cylinder 1, it can also realize the connection of two adjacent heating cylinders 1.

[0031] To improve the connection stability between adjacent heating cylinders 1, locking blocks 44 are provided at both ends of the connecting plate 41, making the connecting plate 41 into an "I" shape. The connecting part 11 has a slot 45 on the inner wall of the groove 42 for matching the locking blocks 44, so that the slot 45 of each heating cylinder 1 is "T" shaped. When the connecting part 11 is inserted into the corresponding limiting groove 43, the locking block 44 is inserted into the slot 45, thereby effectively restricting axial movement between two adjacent heating cylinders 1.

[0032] like Figure 4 and Figure 5Within the same heating cylinder 1, several sections of wire 5 are installed on the inner walls of both connecting parts 11. When the two connecting parts 11 form the heating cylinder 1, the wires 5 of the two connecting parts 11 are interconnected, forming a continuous spiral coil 51. When the heating cylinder 1 is fitted onto the extruder barrel, the spiral coil 51 is also fitted onto the extruder barrel. Both ends of the spiral coil 51 extend from the same connecting part 11 and are connected to a heating power source, thereby achieving the function of heating the barrel. This design not only achieves barrel heating but also facilitates the operator's assembly, disassembly, and maintenance of the heating cylinder 1 and the spiral coil 51.

[0033] like Figure 3 To improve the installation stability of the heating cylinder 1 on the barrel, several support blocks 6 are provided on the inner wall of the connecting part 11. These support blocks 6 are made of high-temperature resistant material, which can effectively disperse the heat and pressure borne by the barrel and improve the stability and durability of the heating device.

[0034] Principle of the embodiment: First, select a suitable heating cylinder 1 according to the length and shape of the extruder barrel and assemble it. The assembled heating cylinders 1 are arranged in sequence and placed on the extruder barrel, ensuring that each spiral coil 51 is fitted onto the barrel. Connect the two ends of each spiral coil 51 to the heating power supply and turn on the heating function. Alternatively, the operator can connect each spiral coil 51 in series to form a total coil, and connect the two ends of the total coil to the heating power supply to achieve the heating effect of the entire extruder barrel.

[0035] By enabling the individual heating cylinder 1 and the individual spiral coil 51 to be detachable, it is convenient for the operator to disassemble each heating cylinder 1 and spiral coil 51 individually. Compared with the prior art, which requires the entire heating cylinder 1 to be disassembled, this embodiment can effectively reduce the maintenance difficulty of the heating cylinder 1.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A novel electromagnetic heater for extruders, characterized in that: It includes several heating cylinders (1) for covering the machine cylinder. Each heating cylinder (1) includes multiple interconnected connecting parts (11). The connecting parts (11) corresponding to the same heating cylinder (1) are connected by a first connecting device (2), and the connecting parts (11) corresponding to adjacent heating cylinders (1) are connected by a second connecting device (4). The connecting part (11) is provided with several sections of wire (5). Multiple connecting parts (11) corresponding to the same heating cylinder (1) are spliced ​​together so that the wires (5) on different connecting parts (11) are connected to each other and form a continuous spiral coil (51). The spiral coil (51) is used to be sleeved on the outside of the cylinder. The two ends of the spiral coil (51) are connected to the heating power supply.

2. The novel electromagnetic heater for an extruder according to claim 1, characterized in that: The first connecting device (2) includes a plug (22) disposed on the connecting part (11), and a slot (23) is provided on the connecting part (11). Among the multiple connecting parts (11) corresponding to the same heating cylinder (1), the slot (23) is used for the plug (22) on the adjacent connecting part (11) to be inserted. The connecting part (11) is installed in the corresponding slot (23) by a first threaded component.

3. The novel electromagnetic heater for an extruder according to claim 1, characterized in that: The second connecting device (4) includes a connecting plate (41) disposed between two adjacent heating cylinders (1). A groove (42) is provided on the connecting part (11) of the same heating cylinder (1). When adjacent connecting parts (11) of the same heating cylinder (1) are spliced, the grooves (42) of the two corresponding parts form a limiting groove (43). When adjacent heating cylinders (1) are spliced, the two ends of the connecting plate (41) are respectively located in the limiting grooves (43) of the two adjacent heating cylinders (1). The connecting plate (41) is connected to the corresponding limiting groove (43) through a second threaded component.

4. A novel electromagnetic heater for an extruder according to claim 3, characterized in that: Both ends of the connecting plate (41) are provided with locking blocks (44), and each of the connecting parts (11) is provided with a slot (45) on the inner wall of the groove (42) for the locking blocks (44) to be inserted, so as to restrict the connecting plate (41) from moving axially along the heating cylinder (1).

5. A novel electromagnetic heater for extruders according to claim 1, characterized in that: The inner wall of the connecting part (11) is provided with a plurality of support blocks (6) for supporting the barrel.

Images