Tube sheet structure

Abstract

The utility model provides a kind of leakage plate structure, comprising: leakage plate, leakage plate has the first side wall and second side wall along its length direction extension;First heating unit, it is set on the first side wall;Second heating unit, it is set on the second side wall, to heat leakage plate by first heating unit and second heating unit, solve the uneven temperature distribution problem brought by the unilateral heating of leakage plate material in prior art.

Description

Technical Field

[0001] This utility model relates to the field of fiber manufacturing technology, and more specifically, to a stencil structure. Background Technology

[0002] In the production of continuous fibers such as glass fiber and carbon fiber, the spinneret is one of the core pieces of equipment, mainly used to heat molten raw materials at high temperatures to form continuous fibers. Specifically, the spinning spinneret is used to produce fibers with smaller diameters, such as electronic-grade glass fiber, while the roving spinneret is used to produce fibers with relatively larger diameters, such as architectural glass fiber or carbon fiber. The size, structure, and heating method of the spinning and roving spinnerets directly affect the quality of the produced fibers.

[0003] In existing production technologies, spinning spinnerets and roving spinnerets are typically heated from both ends. However, in multi-drawing processes (three-drawing or higher), especially for spinning spinnerets with smaller fiber diameters, auxiliary electrodes are required. Depending on the spinneret width, in practical applications, the auxiliary electrode is usually located on one side extending along the spinneret's length. Specifically, the auxiliary electrode is positioned on one side of the spinneret extending along its length, and heating it raises the spinneret's temperature to meet the temperature requirements for the molten raw material to form fibers. However, this single-sided heating method suffers from significant temperature unevenness; the side of the spinneret closer to the auxiliary electrode is hotter, while the side farther from the auxiliary electrode is colder. This can lead to differences in fiber forming quality at different locations, affecting the uniformity and quality of the final product.

[0004] In addition, this unilateral heating method may cause localized thermal stress concentration in the stencil material, which may lead to deformation of the stencil under long-term use, affecting its service life and production stability. Utility Model Content

[0005] The main objective of this invention is to provide a stencil structure to solve the problem of uneven temperature distribution caused by using auxiliary electrodes to heat the stencil material on one side in the prior art.

[0006] To achieve the above objectives, according to one aspect of the present invention, a perforated plate structure is provided, comprising:

[0007] A perforated plate having a first sidewall and a second sidewall extending along its length;

[0008] The first heating unit is disposed on the first side wall;

[0009] The second heating unit is disposed on the second side wall to heat the stencil through the first heating unit and the second heating unit.

[0010] Furthermore, the first heating unit includes:

[0011] Multiple first heating elements are spaced apart on the first sidewall;

[0012] The first contact ends of multiple first heating elements are connected to a stencil, and the ends of multiple first heating elements away from the first contact ends are connected to a power source.

[0013] Furthermore, the second heating unit includes:

[0014] Multiple second heating elements are spaced apart on the second sidewall;

[0015] In this configuration, the second contact ends of multiple second heating elements are connected to the sluice plate, and the ends of multiple first heating elements furthest from the second contact ends are connected to the power supply.

[0016] Furthermore, multiple first heating elements and multiple second heating elements are alternately arranged in the extending direction of the stencil.

[0017] Furthermore, the second heating element forms a first heating region on the first sidewall, and two adjacent first heating elements respectively form a second heating region and a third heating region on the first sidewall, and the distance between the first heating region and the second heating region is greater than the distance between the first heating region and the third heating region.

[0018] Furthermore, the first heating element includes:

[0019] Multiple first sub-elements are stacked together.

[0020] Among them, multiple first sub-elements are arranged along the thickness direction of the sprue or along the length direction of the sprue.

[0021] Furthermore, the second heating element includes:

[0022] Multiple second sub-elements are stacked together.

[0023] Among them, multiple second sub-elements are arranged along the thickness direction of the sprue or along the length direction of the sprue.

[0024] Furthermore, the first heating unit is fixedly connected to the perforated plate; and / or, the second heating unit is fixedly connected to the perforated plate.

[0025] Furthermore, the first heating unit is welded and fixed to the slotted plate; and / or, the second heating unit is welded and fixed to the slotted plate.

[0026] Furthermore, the distance between two adjacent first heating elements along the length of the baffle plate is L;

[0027] The distance between the second heating element and the first heating element along the length of the stencil is 1 / 2L.

[0028] By applying the technical solution of this utility model, the temperature of a specific area of ​​the perforated plate can be rapidly increased by directly arranging the first heating unit on one side of the perforated plate, ensuring that the molten material is fully heated as it passes through. The direct arrangement of the first heating unit reduces the heat transfer path from the heating source to the perforated plate, thereby improving heating efficiency and response speed.

[0029] The second heating unit, similar to the first, is located on the second sidewall of the stencil and is staggered with the first heating unit. This symmetrical and staggered arrangement of heating units effectively avoids temperature gradients caused by unilateral heating, resulting in a more uniform temperature distribution across the entire stencil in both length and width directions. This reduces the problem of inconsistent fiber diameters or variations in fiber strength caused by temperature differences.

[0030] It is worth noting that the heating power of both the first heating unit and the second heating unit in this application is adjustable, which can adjust the heating power according to the actual temperature requirements of the stencil to ensure the stability of the stencil temperature under different production stages or environmental conditions.

[0031] Heating by the first and second heating units promotes heat conduction and thermal balance within the stencil. Heat diffuses from the heating units into the stencil material, creating convection, which helps eliminate localized high-temperature zones near the heat source, reduces thermal stress, and extends the stencil's service life. Attached Figure Description

[0032] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0033] Figure 1 A schematic diagram of the sluice plate structure according to an embodiment of this application is shown.

[0034] The above figures include the following reference numerals:

[0035] 10. Strainer plate; 20. First heating unit; 201. First heating element; 30. Second heating unit; 301. Second heating element. Detailed Implementation

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] As mentioned in the background section, this application provides a sprue structure, including:

[0038] The perforated plate 10 has a first sidewall and a second sidewall extending along its length direction;

[0039] The first heating unit 20 is disposed on the first side wall;

[0040] The second heating unit 30 is disposed on the second side wall to heat the stencil 10 through the first heating unit 20 and the second heating unit 30.

[0041] Specifically, in this embodiment, such as Figure 1 As shown, this application provides a squeegee structure, including a squeegee 10. In this embodiment, the squeegee 10 presents a rectangular plate structure. The squeegee 10 has a first sidewall and a second sidewall extending along its length direction, and the first sidewall and the second sidewall are distributed along the width direction of the squeegee 10. A first heating unit 20 is provided on the first sidewall, and a second heating unit 30 is provided on the second sidewall to achieve heating of the squeegee.

[0042] The spinneret 10 used in this application has a rectangular plate structure, and the two sides of the spinneret 10 are symmetrically arranged along its length. Its shape design allows it to better adapt to the production process of fine yarn or roving, providing a stable and wide area through which molten raw materials flow. The rectangular plate structure of the spinneret 10 improves heating efficiency. Compared with irregularly shaped or disc-shaped spinnerets that may be used in the prior art, the rectangular structure is more conducive to the uniform distribution of heat because its dimensional distribution in the length and width directions is easier to control.

[0043] By directly arranging the first heating unit 20 on one side of the baffle plate 10, the temperature of a specific area of ​​the baffle plate 10 can be rapidly increased, ensuring that the molten material is fully heated as it passes through. The direct arrangement of the first heating unit 20 reduces the heat transfer path from the heating source to the baffle plate 10, thereby improving heating efficiency and response speed.

[0044] The second heating unit 30 is similar to the first heating unit 20, but it is located on the second side wall of the stencil 10 and is staggered with the first heating unit 20. This symmetrical and staggered arrangement of heating units can effectively avoid temperature gradients caused by unilateral heating, making the temperature distribution of the entire stencil 10 more uniform in both length and width directions. This reduces the problem of inconsistent fiber diameter or changes in fiber strength caused by temperature differences.

[0045] It is worth noting that the heating power of the first heating unit 20 and the second heating unit 30 in this application can be adjusted, which can realize the adjustment of heating power according to the actual temperature requirements of the stencil 10, so as to ensure the temperature stability of the stencil 10 under different production stages or environmental conditions.

[0046] Heating by the first heating unit 20 and the second heating unit 30 promotes heat conduction and thermal balance within the stencil 10. Heat energy diffuses from the heating unit into the interior of the stencil material, forming convection, which helps eliminate localized high-temperature zones near the heat source, reduces thermal stress, and extends the service life of the stencil 10.

[0047] Furthermore, the first heating unit 20 includes: a plurality of first heating elements 201, which are spaced apart on the first sidewall;

[0048] The first contact ends of the plurality of first heating elements 201 are connected to the first sidewall, and the ends of the plurality of first heating elements 201 away from the first contact ends are connected to the power supply.

[0049] Specifically, the first heating unit 20 includes a first heating element 201, which is an electrode in this embodiment. The first heating elements 201 are spaced apart on the first sidewall. The first contact end of each first heating element 201 is connected to the first sidewall. The end of each first heating element 201 away from the first contact end is connected to the power supply. When the power supply supplies power to the first heating element 201, the first heating element 201 can heat the stencil 10.

[0050] The first heating unit 20 consists of multiple first heating elements 201, which are electrodes. They work together on the first sidewall of the inductor plate 10 to provide heating energy. The arrangement of the first heating unit 20 ensures that one side of the inductor plate 10 can receive direct and effective heat input.

[0051] Each first heating element 201 acts as an independent electric heating unit, allowing for precise control of the temperature in the local heating area, thereby improving heating accuracy and flexibility. By distributing multiple first heating elements 201 at intervals on the first sidewall, the risk of individual heating elements failing or becoming inefficient due to overheating is avoided. At the same time, the interval distribution also facilitates uniform heat diffusion and reduces the temperature gradient near the heat source.

[0052] The first contact end of the first heating element 201 is directly connected to the first sidewall of the drain plate 10, which ensures that heat can be transferred directly and efficiently from the electrode to the drain plate 10, reducing heat loss and delay. The tight connection between the first contact end and the first sidewall is the key to achieving rapid and uniform heating.

[0053] The end of each first heating element 201 furthest from the first contact terminal is connected to a power source. This design allows each electrode to receive power independently, and by adjusting the power supply intensity of each electrode, precise control of the temperature of the first sidewall of the swivel plate 10 can be achieved.

[0054] When power is supplied to the first heating element 201, the power supply can be dynamically adjusted according to the real-time temperature requirements of the spinneret 10. By controlling the heating power of the electrodes, the temperature of the spinneret 10 can be quickly responded to, maintaining a stable and uniform heating environment, which is beneficial to the continuity and stability of fiber production.

[0055] Because the first heating elements 201 are spaced apart on the first sidewall and each electrode is independently connected to the power supply, the first heating unit 20 is able to provide a more uniform heat distribution.

[0056] The design of the first heating unit 20, with electrodes directly contacting the heat exchange plate 10, reduces the heat transfer path and thus significantly improves heating efficiency. High-efficiency heating not only accelerates the production process but also reduces energy consumption and improves production cost-effectiveness.

[0057] Furthermore, the second heating unit 30 includes:

[0058] A plurality of second heating elements 301 are spaced apart on the second sidewall;

[0059] The second contact ends of the plurality of second heating elements 301 are connected to the second sidewall, and the ends of the plurality of first heating elements 201 that are away from the second contact ends are connected to the power supply.

[0060] Specifically, the second heating unit 30 includes a plurality of second heating elements 301. In this embodiment, the second heating elements 301 are electrodes. The second heating elements 301 are spaced apart on the second sidewall. The second contact end of each second heating element 301 is connected to the second sidewall. The end of each second heating element 301 away from the second contact end is connected to the power supply. When the power supply supplies power to the second heating element 301, the second heating element 301 can heat the stencil 10.

[0061] The second heating unit 30 consists of multiple second heating elements 301, which are also electrodes and are distributed on the second sidewall of the swivel plate 10, providing additional heating capacity. The arrangement of the second heating unit 30 ensures that both sides of the swivel plate receive uniform and effective heat input.

[0062] The second heating unit 30 includes multiple second heating elements 301. This design ensures uniform heat distribution, and even if a single second heating element 301 fails or its efficiency decreases, the other second heating elements 301 can still maintain the heating requirements of the heat sink 10, thus improving the overall reliability and stability of the system.

[0063] Each second heating element 301 is spaced apart on the second sidewall. This spaced distribution helps reduce heat concentration and avoid local overheating. At the same time, the spaced electrodes can cover a wider area of ​​the spinneret 10 surface, ensuring uniform heat transfer in the width direction, which is beneficial to improving the spinning quality of the fiber.

[0064] The second contact end of the second heating element 301 is directly connected to the second sidewall of the inductor plate 10. This direct contact design ensures that heat can be transferred quickly and without loss from the electrode to the inductor plate 10, reducing heat loss in the air and improving heating efficiency.

[0065] The end of each second heating element 301 furthest from the second contact terminal is connected to a power source. This design allows each electrode to receive power independently, and by adjusting the power supply intensity of the electrodes, precise control of the temperature of the second sidewall of the stencil 10 can be achieved to meet the specific temperature requirements of different production conditions.

[0066] When power is supplied to the second heating element 301, the temperature of the second sidewall can be precisely controlled by dynamically adjusting the power supply. This allows for a rapid response to changes in the temperature of the spinneret 10, maintaining a stable and uniform heating environment, which is beneficial for the continuity and stability of fiber production and reduces the unevenness in fiber diameter and strength caused by temperature fluctuations.

[0067] Due to the spaced distribution of the second heating elements 301 on the second sidewall and the direct contact between each electrode and the drain plate 10, the second heating unit 30 is able to provide more uniform heat transfer.

[0068] By combining the heating effects of the first heating unit 20 and the second heating unit 30, this symmetrical heating design ensures the uniformity of temperature distribution in the width direction of the spinneret 10 and the stability of temperature changes over time in the length direction. The synergistic effect of dual-sided heating significantly improves temperature control and fiber quality consistency during the fiber spinning process, which is beneficial for improving production efficiency and cost-effectiveness.

[0069] Furthermore, a plurality of first heating elements 201 and a plurality of second heating elements 301 are alternately arranged in the extending direction of the stencil 10.

[0070] Specifically, the alternating arrangement of the first heating element 201 and the second heating element 301 enables uniform heating of the stencil 10.

[0071] Furthermore, the second heating element 301 forms a first heating area on the first sidewall, and two adjacent first heating elements 201 respectively form a second heating area and a third heating area on the first sidewall, and the distance between the first heating area and the second heating area is greater than the distance between the first heating area and the third heating area.

[0072] The relative positional relationship between the first heating area formed by the second heating element 301 on the first sidewall and the second and third heating areas formed by the other first heating elements 201 provides a basis for optimizing the heating layout. The relative distance between the first heating area and the second and third heating areas guides the precise arrangement of the heating elements to achieve the best heat distribution effect.

[0073] A second heating region and a third heating region are formed on the first sidewall, respectively. The heating regions of adjacent heating elements reflect their actual layout on the swivel plate 10. By controlling their spacing, the heat distribution pattern on the swivel plate 10 can be affected.

[0074] The distance between the first heating zone and the second heating zone is designed to be greater than the distance between the first heating zone and the third heating zone. This differentiated arrangement of spacing takes into account the natural characteristics of the temperature gradient on the stencil 10 and the requirement for the heating elements to be alternately distributed on both sides of the stencil 10, which helps to achieve more precise temperature control.

[0075] By adjusting the distances between the first and second heating areas, and between the first and third heating areas, the heat distribution on the heat sink 10 can be optimized. In high-temperature areas, reducing the spacing between the heating elements can increase the heat density and effectively compensate for the temperature drop; while in areas with relatively stable temperatures, appropriately increasing the spacing can prevent local overheating and ensure uniform temperature distribution.

[0076] Furthermore, the first heating element 201 includes:

[0077] Multiple first sub-elements are stacked together.

[0078] Among them, multiple first sub-elements are arranged along the thickness direction of the stencil 10 or along the length direction of the stencil 10.

[0079] Specifically, each first heating element 201 includes multiple first sub-elements. Because the hardness of the first sub-elements is low, if only one first sub-element is used, the first heating element 201 will bend during the heating of the stencil 10. Multiple stacked first sub-elements can ensure the hardness of the first heating element 201 and heat the stencil 10 more effectively. The multiple first sub-elements can be arranged along the thickness direction of the stencil 10 or along the length direction of the stencil 10.

[0080] Furthermore, the second heating element 301 includes:

[0081] Multiple second sub-elements are stacked together.

[0082] Among them, multiple second sub-elements are arranged along the thickness direction of the stencil 10 or along the length direction of the stencil 10.

[0083] Specifically, each second heating element 301 includes multiple second sub-elements. Because the second sub-elements themselves have low hardness, if only one second sub-element is used, the second heating element 301 will bend during the heating of the stencil 10. Multiple stacked second sub-elements can ensure the hardness of the second heating element 301 and heat the stencil 10 more effectively. The multiple second sub-elements can be arranged along the thickness direction of the stencil 10 or along the length direction of the stencil 10.

[0084] Each first heating element 201 is composed of multiple first sub-elements. The combined use of sub-elements improves the overall strength of the first heating element 201, ensures structural stability and durability at high temperatures, reduces maintenance frequency, and extends the service life of the equipment.

[0085] Because a single first sub-element has low hardness, it may deform due to temperature differences during the heating process. By stacking multiple first sub-elements, the rigidity of the structure is increased, effectively preventing the first heating element 201 from bending during the heating process, thus ensuring the uniformity and reliability of heating.

[0086] The stacked arrangement of multiple first sub-elements of the first heating element 201 increases the contact area with the heat exchanger 10, thereby improving heating efficiency and the uniformity of heat transfer. This design also enhances the first sub-elements' resistance to thermal expansion and contraction, reducing the risk of damage caused by thermal stress.

[0087] The first sub-element in the first heating element 201 can be arranged along the thickness or length of the baffle plate 10. This flexible arrangement allows the heating system to be optimized according to the temperature requirements of the baffle plate 10, achieving more precise temperature control and improving temperature uniformity in both the thickness and length of the baffle plate 10.

[0088] Similar to the first heating element 201, each second heating element 301 is also composed of multiple second sub-elements. This design also increases the rigidity of the heating element, enhances its stability during the heating process, and ensures the symmetry and consistency of heating on both sides.

[0089] The second sub-element itself has low hardness, but by stacking multiple second sub-elements, the second heating element 301 obtains the necessary hardness, avoids deformation during the heating process, ensures heating uniformity, and reduces fluctuations and instabilities during the fiber spinning process.

[0090] The multiple second sub-elements of the second heating element 301 are stacked, which increases the contact area with the stencil 10, thereby improving the heat conduction efficiency and reducing energy loss.

[0091] The second sub-elements in the second heating element 301 can be arranged along the thickness or length direction of the spinneret 10. This design flexibility allows the system to adjust the layout of the second heating element 301 to optimize the temperature distribution for the specific dimensions and heat requirements of the spinneret 10, thereby achieving the best heating effect and improving the quality and efficiency of fiber production.

[0092] The stacking and flexible arrangement of sub-elements of the first heating element 201 and the second heating element 301 work together to heat the spinneret 10. The symmetrical heating design on both sides, combined with enhanced strength and optimized heat conduction of the sub-elements, achieves balanced temperature control of the spinneret 10, reduces changes in fiber diameter and strength caused by temperature differences, and significantly improves the stability of fiber spinning and the quality of fiber products.

[0093] Furthermore, the first heating unit 20 is fixedly connected to the stencil 10; and / or, the second heating unit 30 is fixedly connected to the stencil 10.

[0094] Furthermore, the first heating unit 20 is welded and fixed to the slotted plate 10; and / or, the second heating unit 30 is welded and fixed to the slotted plate 10.

[0095] Specifically, the first heating unit 20 is fixedly connected to the slotted plate 10. This connection method ensures that the first heating unit 20 is in a stable position during the heating process, reducing positional shifts caused by vibration or thermal expansion, thereby improving the accuracy and efficiency of heating.

[0096] The fixed connection between the first heating unit 20 and the second heating unit 30 and the stencil 10 helps to maintain close contact between the heating unit and the stencil 10, ensuring that heat can be transferred efficiently and stably, which is crucial for maintaining the uniformity of temperature on the stencil 10.

[0097] The first heating unit 20 is fixed to the stencil 10 by welding. Welding is a strong and durable connection method. It can not only ensure a tight connection between the heating unit and the stencil 10, but also withstand the thermal stress that may be generated under high temperature environment, and avoid loosening or damage caused by thermal expansion and cooling of the connection part.

[0098] The welding fixation between the second heating unit 30 and the slotted plate 10 provides long-term stability, withstands frequent temperature changes during production, and reduces the need for equipment maintenance. Welding also ensures the flatness of the contact surface between the second heating unit 30 and the slotted plate 10, further optimizing the uniform distribution of heat.

[0099] Furthermore, the distance between two adjacent first heating elements 201 along the length of the stencil 10 is L;

[0100] The distance between the second heating element 301 and the first heating element 201 along the length of the stencil 10 is 1 / 2L.

[0101] Specifically, the distance between the first heating element 201 and the adjacent elements along the length of the stencil 10 is set to L. This setting ensures that each heating element is evenly distributed along the length of the stencil 10, providing a continuous and consistent heat source, which helps maintain the temperature uniformity on the stencil 10.

[0102] By controlling the distance L between adjacent first heating elements 201, temperature gradient control can be achieved during the heating process of the spinneret 10. A reasonable spacing L helps prevent local overheating while ensuring a uniform temperature rise throughout the heating area, which is crucial for temperature control during fiber spinning.

[0103] The distance between the second heating element 301 and the first heating element 201 is set to 1 / 2L along the length of the stencil 10. This spacing design takes into account the synergistic effect of dual-sided heating. By placing the second heating element 301 in the "gap" of the first heating element 201, temperature control can be further refined and the uniformity of heat distribution can be improved.

[0104] Controlling the distance between the second heating element 301 and the first heating element 201 to 1 / 2L helps to form a denser heating network. Especially in the length direction of the stencil 10, it enables more precise control of temperature changes, reduces temperature gradients, and achieves high uniformity of temperature distribution.

[0105] By setting the distance between the first heating element 201 and the second heating element 301 to 1 / 2L, the density of the heating elements can be increased, thereby increasing the heating power per unit area on the stencil 10, accelerating the temperature rise process, improving heating efficiency, and shortening the heating cycle.

[0106] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0107] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0108] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0109] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0110] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0111] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A perforated plate structure, characterized in that, include: A slug (10) having a first sidewall and a second sidewall extending along its length; The first heating unit (20) includes a plurality of first heating elements (201) disposed on the first sidewall. The second heating unit (30) includes a plurality of second heating elements (301) disposed on the second sidewall. The plurality of first heating elements (201) and the plurality of second heating elements (301) are alternately disposed in the extension direction of the sprue plate (10) to heat the sprue plate (10) by the plurality of first heating elements (201) and the plurality of second heating elements (301).

2. The perforated plate structure according to claim 1, characterized in that, A plurality of the first heating elements (201) are spaced apart on the first sidewall; The first contact ends of the plurality of first heating elements (201) are connected to the sluice plate (10), and the ends of the plurality of first heating elements (201) away from the first contact ends are connected to the power supply.

3. The perforated plate structure according to claim 2, characterized in that, A plurality of the second heating elements (301) are spaced apart on the second sidewall; The second contact ends of the plurality of second heating elements (301) are connected to the sluice plate (10), and the ends of the plurality of second heating elements (301) away from the second contact ends are connected to the power source.

4. The perforated plate structure according to claim 3, characterized in that, The second heating element (301) forms a first heating area on the first sidewall, and two adjacent first heating elements (201) respectively form a second heating area and a third heating area on the first sidewall, and the distance between the first heating area and the second heating area is greater than the distance between the first heating area and the third heating area.

5. The perforated plate structure according to claim 2, characterized in that, The first heating element (201) includes: Multiple first sub-elements are stacked together. Among them, a plurality of the first sub-elements are arranged along the thickness direction of the sprue plate (10) or along the length direction of the sprue plate (10).

6. The perforated plate structure according to claim 3, characterized in that, The second heating element (301) includes: Multiple second sub-elements are stacked together. The plurality of second sub-elements are arranged along the thickness direction of the sprue plate (10) or along the length direction of the sprue plate (10).

7. The perforated plate structure according to claim 1, characterized in that, The first heating unit (20) is fixedly connected to the stencil (10); and / or, The second heating unit (30) is fixedly connected to the sluice plate (10).

8. The perforated plate structure according to claim 7, characterized in that, The first heating unit (20) is welded and fixed to the slotted plate (10); and / or, The second heating unit (30) is welded and fixed to the slotted plate (10).

9. The perforated plate structure according to claim 3, characterized in that, The distance between two adjacent first heating elements (201) along the length of the stencil (10) is L; The distance between the second heating element (301) and the first heating element (201) along the length of the sluice plate (10) is 1 / 2L.

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