Hot-pressing die with die temperature controlled in partition mode

Abstract

The utility model discloses a die temperature zoning control hot-pressing die which comprises a hot-pressing table, a support, electric telescopic rods, a sliding maintenance mechanism, a zoning adjusting mechanism and a heat isolation mechanism, the support is fixedly arranged in the middle of the hot-pressing table, and the electric telescopic rods are fixedly arranged on the support in a front-back symmetry mode. A hot-pressing mold is fixedly arranged between the telescopic end of the electric telescopic rod and the hot-pressing table, a partition heating bin is formed in the hot-pressing mold, a heating frame is inserted into the partition heating bin in a matched mode, sliding rails are fixedly arranged in the partition heating bin in a front-back symmetry mode, sliding blocks are fixedly arranged on the heating frame in a front-back symmetry mode, and a handle is fixedly arranged on one side of the heating frame; according to the utility model, the modularized quick disassembly and maintenance of the electric heating block are realized through the sliding maintenance mechanism, the maintenance cost and the downtime are obviously reduced, the temperature is accurately regulated and controlled by utilizing independent switch control, and the temperature is accurately regulated and controlled by matching with a ceramic fiber partition plate, a heat insulation interlayer and an annular air pipe heat dissipation system; and heat coupling interference is blocked.

Description

Technical Field

[0001] This utility model relates to the field of hot pressing mold technology, and in particular to a hot pressing mold with zoned temperature control. Background Technology

[0002] A hot press mold is a type of mold that presses materials into specific shapes using high temperature and high pressure. Its core processes include preheating the mold, placing the material, applying pressure for curing, and cooling and demolding. It is mainly used in lightweight automotive parts, packaging boxes, furniture, and precision optical components. Traditional hot press molds typically employ overall heating or simple segmented temperature control methods, such as installing heating tubes or heating wires in the upper and lower molds, and regulating the temperature through a single temperature control system. These molds are often made of high-temperature resistant alloy steel or hard alloy to withstand the high temperature and high pressure environment.

[0003] Traditional mold heating units typically have a simple layout, making precise temperature control impossible for parts with varying thicknesses or complex structures. This results in large temperature differences across the cavity surface and a lack of effective insulation between different areas of the mold. Heat is conducted through the metal substrate, creating coupled temperature fields. Due to its crude temperature control and severe thermal interference, traditional hot pressing molds are gradually being replaced by mold temperature zone control technology. The latter, through structural optimization and intelligent design, significantly improves molding quality and process adaptability.

[0004] A hot pressing mold is disclosed in utility model application number 202221097602.X. By providing at least two sets of hot pressing heads protruding side-by-side on a substrate, with the openings of the two sets of hot pressing heads facing the same side, the hot pressing mold first performs a first hot pressing on the film using one set of hot pressing heads. After the first hot pressing is completed, the film is moved to the position of the other set of hot pressing heads for a second hot pressing. In this process, the film is constantly moving and not subjected to stationary hot pressing using only one hot pressing head; thus, at least two sets of hot pressing heads are continuously working on the film, significantly improving the hot pressing efficiency.

[0005] However, the aforementioned hot pressing mold requires continuous energy supply for overall heating, and it is difficult to maintain low temperature during non-production periods, resulting in energy waste. Traditional mold repair requires overall disassembly, and replacing damaged heating tubes or repairing worn cavities is time-consuming. The aforementioned hot pressing mold heats up the entire mold during hot pressing, making it impossible to adjust the hot pressing temperature in different areas as needed. There is a lack of effective heat insulation measures between different areas of the mold, and heat is easily conducted through the metal substrate to form temperature field coupling. Therefore, this utility model proposes a hot pressing mold with zoned temperature control to solve the problems existing in the prior art. Utility Model Content

[0006] To address the aforementioned problems, the purpose of this invention is to propose a temperature-zone controlled hot pressing mold. This mold utilizes a sliding maintenance mechanism to enable modular and rapid disassembly and repair of the heating element, significantly reducing maintenance costs and downtime. By employing a zoned adjustment mechanism combined with zoned heat-conducting fins and independent switch control, the temperature of each zone of the hot pressing mold can be precisely controlled, avoiding energy waste and uneven temperature caused by traditional overall heating. Furthermore, the combination of ceramic fiber partitions, heat insulation layers, and a ring-shaped air duct cooling system effectively blocks heat coupling interference and accelerates the cooling of molded parts, thereby improving the overall temperature control accuracy, production efficiency, and product quality of the hot pressing process. It also offers comprehensive advantages such as energy saving, consumption reduction, and convenient operation.

[0007] To achieve the purpose of this utility model, the present utility model is implemented through the following technical solution: a hot pressing mold with zoned temperature control, including a hot pressing table, a support, an electric telescopic rod, a sliding maintenance mechanism, a zoned adjustment mechanism, and a thermal isolation mechanism. The support is fixedly provided in the middle of the hot pressing table, and the electric telescopic rod is symmetrically fixedly provided on the support. The sliding maintenance mechanism includes a hot pressing mold, a zoned heating chamber, a heating frame, a slide rail, a slider, and a handle. The hot pressing mold is fixedly provided between the telescopic end of the electric telescopic rod and the middle of the hot pressing table. A zoned heating chamber is provided inside the hot pressing mold, and a heating frame is inserted into the zoned heating chamber. The slide rail is symmetrically fixedly provided in the zoned heating chamber, and the slider is symmetrically fixedly provided in the heating frame. A handle is fixedly provided on one side of the heating frame. A zoned adjustment mechanism is provided inside the heating frame, and a thermal isolation mechanism is provided inside the heating frame.

[0008] A further improvement is that the hot pressing mold is positioned vertically, and the heating frame slides along the slide rail into the partitioned heating chamber.

[0009] A further improvement is that the partition adjustment mechanism includes a heating block, a partition switch, partition heat-conducting fins, and heat-conducting slots. The heating block is arranged and fixed inside the heating frame, and the partition switch is arranged and fixed on one side of the heating frame. The partition switch is electrically connected to the heating block. The partition heat-conducting fins are arranged and fixed inside the heating frame, and the heat-conducting slots are arranged and opened inside the hot pressing mold.

[0010] A further improvement is that the outer side of the partitioned heat-conducting fins is fixedly connected to the heating tube for heat conduction, and the heat-conducting slot is fitted to the heat-conducting fins for heat conduction.

[0011] A further improvement is that the thermal insulation mechanism includes a ceramic fiber partition, a thermal insulation interlayer, and a thermal insulation pad. The ceramic fiber partition is fixedly arranged in a cross pattern inside the heating frame, the thermal insulation interlayer is arranged around the heating frame, and the thermal insulation pad is fixedly arranged at the bottom of the heating frame.

[0012] A further improvement is that an annular air duct is fixedly provided in the middle of the hot press platform, the annular air duct is located outside the hot press mold, and an air outlet is provided around the inside of the annular air duct.

[0013] A further improvement is that a cooling fan is fixedly installed on one side of the hot press platform, and the cooling fan is connected to an annular air duct.

[0014] The beneficial effects of this utility model are as follows: This utility model realizes modular and rapid disassembly and repair of the heating block through a sliding maintenance mechanism, which significantly reduces maintenance costs and downtime; by using a zoned adjustment mechanism combined with zoned heat-conducting fins and independent switch control, the temperature of each area of ​​the hot pressing mold is precisely controlled, avoiding energy waste and uneven temperature caused by traditional overall heating; in conjunction with ceramic fiber partitions, heat insulation layers and annular air duct heat dissipation system, it effectively blocks heat coupling interference and accelerates the cooling of molded parts, thereby improving the overall temperature control accuracy, production efficiency and product quality of the hot pressing process, while also having the comprehensive advantages of energy saving, consumption reduction and convenient operation. Attached Figure Description

[0015] Figure 1 This is the overall front sectional view of the present invention;

[0016] Figure 2 This is a top view of the hot pressing mold of this utility model;

[0017] Figure 3 This is a front sectional view of the hot pressing mold of this utility model;

[0018] Figure 4 This is a front sectional view of the heating rack of this utility model.

[0019] The components include: 1. Hot press table; 2. Support frame; 3. Electric telescopic rod; 4. Hot press mold; 5. Zoned heating chamber; 6. Heating rack; 7. Slide rail; 8. Slider; 9. Handle; 10. Heating block; 11. Zoned switch; 12. Zoned heat-conducting fins; 13. Heat-conducting slot; 14. Ceramic fiber partition; 15. Heat insulation layer; 16. Heat insulation pad; 17. Annular air duct; 18. Air outlet; 19. Cooling fan. Detailed Implementation

[0020] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0021] according to Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, this embodiment provides a temperature-zone controlled hot pressing mold, including a hot pressing table 1, a support 2, an electric telescopic rod 3, a sliding maintenance mechanism, a zone adjustment mechanism, and a thermal isolation mechanism. The support 2 is fixedly mounted in the middle of the hot pressing table 1, and the electric telescopic rod 3 is symmetrically fixed to the front and rear of the support 2. The sliding maintenance mechanism includes a hot pressing mold 4, zone heating chambers 5, heating frames 6, slide rails 7, sliders 8, and handles 9. The telescopic end of the electric telescopic rod 3 is fixedly mounted to the hot pressing table 1 with the hot pressing mold 4 in the middle. Zone heating chambers 5 are formed inside the hot pressing mold 4, and heating elements are inserted into the zone heating chambers 5. The heating frame 6 has symmetrically fixed slide rails 7 in the front and back of the partitioned heating chamber 5, and symmetrically fixed sliders 8 in the front and back of the heating frame 6. A handle 9 is fixed on one side of the heating frame 6. The hot press mold 4 is positioned vertically. The heating frame 6 slides along the slide rails 7 and is inserted into the partitioned heating chamber 5. When the heating block 10 is damaged and needs to be disassembled for maintenance, the partition switch 11 is turned off, and the handle 9 is pulled to pull the heating frame 6 out of the partitioned heating chamber 5. This facilitates quick maintenance when the heating block 10 is damaged, and solves the problem that traditional mold maintenance requires overall disassembly. The heating frame 6 is equipped with a partition adjustment mechanism and a heat isolation mechanism.

[0022] The zoned adjustment mechanism includes heating blocks 10, zone switches 11, zoned heat-conducting fins 12, and heat-conducting slots 13. Heating blocks 10 are fixedly arranged inside the heating frame 6, and zone switches 11 are fixedly arranged on one side of the heating frame 6. The zone switches 11 are electrically connected to the heating blocks 10. Zoned heat-conducting fins 12 are fixedly arranged inside the heating frame 6, and heat-conducting slots 13 are arranged inside the hot press mold 4. The outer side of the zoned heat-conducting fins 12 is fixedly connected to the heating tube for heat conduction. The heat-conducting slots 13 are fitted and fitted with the heat-conducting fins for heat conduction. Before hot pressing, the zone switches 11 of the corresponding area are turned on as needed to power on the corresponding heating blocks 10 and generate heat. The heat generated by the heating blocks 10 is conducted to the heat-conducting slots 13 through the zoned heat-conducting fins 12 to heat the hot press mold 4. This allows for zoned temperature control of the corresponding area of ​​the hot press mold 4 as needed, effectively solving the problem of coarse temperature control in traditional hot press molds 4.

[0023] The thermal insulation mechanism includes a ceramic fiber partition 14, a thermal insulation interlayer 15, and a thermal insulation pad 16. The ceramic fiber partition 14 is fixedly arranged in a cross pattern inside the heating frame 6. The thermal insulation interlayer 15 is arranged around the heating frame 6. The thermal insulation pad 16 is fixedly arranged at the bottom of the heating frame 6. The ceramic fiber partition 14 and the thermal insulation pad 16 are used to separate the electric heating blocks 10, so that each electric heating block 10 heats and adjusts the temperature of the corresponding area of ​​the hot pressing mold 4. Effective thermal insulation measures are implemented for each area inside the mold, and heat is effectively prevented from being conducted through the metal substrate to form temperature field coupling.

[0024] A ring-shaped air duct 17 is fixedly installed in the middle of the hot press table 1. The ring-shaped air duct 17 is located outside the hot press mold 4. An air outlet 18 is opened around the inside of the ring-shaped air duct 17. A cooling fan 19 is fixedly installed on one side of the hot press table 1. The cooling fan 19 is connected to the ring-shaped air duct 17. After the hot pressing is completed, the cooling fan 19 starts to blow air into the ring-shaped air duct 17 and blows it out through the air outlet 18 to facilitate the rapid cooling and molding of the parts after hot pressing.

[0025] When the temperature-controlled hot pressing mold is in operation, the electric telescopic rod is activated to adjust the position of the hot pressing mold. Then, the area to be heated is selected through the zoning adjustment mechanism, and the corresponding zoning switch is turned on. The heating block is energized and the heat is conducted to the heat-conducting slot through the zoning heat-conducting fins, which accurately heats the hot pressing mold in different zones. The ceramic fiber partition and heat insulation pad inhibit heat conduction between zones and maintain an independent temperature field. After the hot pressing is completed, the cooling fan is activated, and the part is cooled and shaped by the air blowing around through the ring air duct. If the heating block is damaged, the zoning switch can be turned off and the heating frame can be pulled out along the slide rail for quick modular repair. This achieves an integrated hot pressing molding operation with efficient zoning temperature control and convenient maintenance.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A temperature-controlled hot pressing mold, characterized in that: The utility model provides a hot pressing platform, support, electric telescopic rod, sliding maintenance mechanism, zoning adjustment mechanism and thermal isolation mechanism, the support is fixed in the middle on the hot pressing platform (1), the electric telescopic rod is fixed on the support (2) and is symmetrical in front and back, the sliding maintenance mechanism includes hot pressing mould (4), zoning heating bin (5), heating frame (6), slide rail (7), sliding block (8) and handle (9), the telescopic end of electric telescopic rod (3) is fixed with hot pressing mould (4) in the middle on the hot pressing platform (1), zoning heating bin (5) is set in hot pressing mould (4), heating frame (6) is inserted in zoning heating bin (5) in matching, slide rail (7) is fixed in zoning heating bin (5) and is symmetrical in front and back, the sliding block (8) is fixed in heating frame (6) and is symmetrical in front and back, handle (9) is fixed on one side of heating frame (6), zoning adjustment mechanism is equipped in heating frame (6), and thermal isolation mechanism is equipped in heating frame (6).

2. The temperature zoned controlled hot press mold of claim 1, wherein: The hot pressing mould (4) is corresponding in position up and down, and the heating frame (6) is inserted into the zoning heating bin (5) along the slide rail (7).

3. The temperature zoned controlled hot press mold of claim 1, wherein: The zoning adjustment mechanism includes electric heating block (10), zoning switch (11), zoning heat conduction fin (12) and heat conduction slot (13), the electric heating block (10) is fixed in the heating frame (6), the zoning switch (11) is fixed on one side of the heating frame (6), the zoning switch (11) is electrically connected with the electric heating block (10), the zoning heat conduction fin (12) is fixed on the inner side of the heating frame (6), and the heat conduction slot (13) is arranged in the inner side of the hot pressing mould (4).

4. The temperature zoned controlled hot press mold of claim 3, wherein: The zoning heat conduction fin (12) is fixedly connected with the electric heating tube outside the zoning heat conduction fin (12) and is in heat conduction, and the heat conduction slot (13) is matched with the heat conduction fin and is in heat conduction.

5. The temperature zoned controlled hot press mold of claim 1, wherein: The thermal isolation mechanism includes ceramic fiber partition plate (14), heat insulation interlayer (15) and heat insulation pad (16), the ceramic fiber partition plate (14) is fixed in the heating frame (6) and is crosswise staggered, the heat insulation interlayer (15) is arranged around the heating frame (6), and the heat insulation pad (16) is fixed on the bottom of the heating frame (6).

6. The temperature zoned controlled hot press mold of claim 1, wherein: The annular air pipe (17) is fixed in the middle on the hot pressing platform (1), the annular air pipe (17) is located on the outer side of the hot pressing mould (4), and the air outlet (18) is arranged around the annular air pipe (17).

7. The temperature zoned controlled hot press mold of claim 6, wherein: The heat dissipation fan (19) is fixed on one side of the hot pressing platform (1), and the heat dissipation fan (19) is connected with the pipeline of the annular air pipe (17).

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