Hydraulic machine for compression molding of porous carbon material

Abstract

The utility model provides a hydraulic machine for compression molding of porous carbon materials, which solves the problems of replacement of a carbon material processing die and the like and comprises a vertically arranged rack, a hydraulic frame is slidably mounted on the rack, and a hydraulic cylinder is mounted between the rack and the hydraulic frame. A forming assembly and a cooling assembly opposite to the forming assembly are installed between the hydraulic frame and the rack, and a quick release assembly is arranged between the forming assembly and the cooling assembly. The forming die has the advantages of stable structure, good forming effect and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of porous carbon material processing, and in particular relates to a hydraulic press for compression molding of porous carbon materials. Background Art

[0002] During carbon fiber processing, carbon fiber prepreg is placed between upper and lower molds, the molds are sealed, and then placed on a hydraulic platform. After a period of high-temperature and high-pressure curing, the carbon fiber product is removed from the hydraulic press. However, porous carbon materials often require larger molding molds, and the actual compression molding process requires rapid heat dissipation and cooling to increase the molding speed. However, in actual processing, existing hydraulic presses cannot quickly adjust the cooling mechanism to accommodate mold changes, which in turn affects the overall processing speed.

[0003] In order to address the shortcomings of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a carbon fiber LCM high-temperature hot pressing composite material hydraulic press [202311823671.3], which includes a machine body and a matching guide rail device and slider provided on the machine body; a forming mold is provided below the slider; a mold entry and exit trolley is provided below the forming mold; an upper heating platform is provided above the forming mold, and a lower heating platform is provided below the forming mold; a double heating layer is evenly arranged inside the upper and lower heating platforms, each heating layer is provided with multiple heating tubes in parallel, and each heating tube is divided into three heating zones along the axial direction, namely the near heating zone, the middle heating zone, and the far heating zone; the three heating zones are independently heated and electrically connected to the outside world through the heating tube terminal provided in the near heating zone; thermocouple temperature detectors are arranged in the surface holes of the upper and lower heating platforms, and all temperature detectors are distributed in the three heating zones.

[0004] The above solution solves the problem of hot pressing of carbon fiber to a certain extent, but the solution still has many shortcomings, such as mold replacement during the processing of porous carbon materials. Summary of the Invention

[0005] The purpose of the utility model is to solve the above problems and provide a hydraulic press for porous carbon material compression molding which has a reasonable design and can realize rapid switching and replacement of molds and cooling systems.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a hydraulic press for molding porous carbon materials, comprising a vertically arranged frame, a hydraulic frame slidably mounted on the frame, a hydraulic cylinder installed between the frame and the hydraulic frame, a molding assembly and a cooling assembly opposite to the molding assembly installed between the hydraulic frame and the frame, and a quick-release assembly arranged between the molding assembly and the cooling assembly.

[0007] In the above-mentioned hydraulic press for compression molding of porous carbon materials, the frame includes a base and vertical frames installed on both sides of the base, and a limit cover is installed on the top of the vertical frame.

[0008] In the above-mentioned hydraulic press for molding porous carbon materials, a sliding guide rail and a displacement sensor are installed between the hydraulic frame and the vertical frame, a limit block located below the hydraulic frame is slidably installed on the sliding guide rail, and a locking pin is installed between the limit block and the vertical frame.

[0009] In the above-mentioned hydraulic press for molding porous carbon materials, the molding assembly includes a molding plate arranged between the frame and the hydraulic frame and opposite to each other up and down, a molding groove is distributed on the opposite side of the molding plate, the molding groove is connected to an exhaust hole extending to the outside of the molding plate, and a sealing assembly is arranged between the molding plates.

[0010] In the above-mentioned hydraulic press for molding porous carbon materials, the sealing assembly includes sealing grooves distributed along the circumference of the molding plate, and the other molding plate has a sealing strip inserted in the sealing groove, and a sealing surface that fits each other and is wavy is provided between the sealing groove and the sealing strip.

[0011] In the above-mentioned hydraulic press for molding porous carbon materials, the cooling assembly includes a cooling tube surrounding the circumference of the molding plate. The cooling tube is a rectangular tube with a cooling channel inside. A cooling cavity is left on the side of the molding plate opposite to the hydraulic frame or the machine frame. The quick-release assembly is installed between the molding plate and the cooling tube.

[0012] In the above-mentioned hydraulic press for molding porous carbon materials, the quick-release assembly includes a quick-release groove arranged at the edge of the molding plate, a quick-release protrusion is provided on the inner side of the cooling tube and is slidably plugged into the quick-release groove, and a one-to-one corresponding ventilation hole is opened between the quick-release protrusion and the quick-release groove. A quick-release tube is movably installed on the cooling tube, and the quick-release tube passes through the ventilation hole and connects the cooling channel with the cooling cavity.

[0013] In the above-mentioned hydraulic press for compression molding of porous carbon materials, the quick-release barrel is threadedly connected or slidably and telescopically connected to the cooling pipe, and the quick-release barrel is plugged and fixed to the vent by manual or motor drive.

[0014] In the above-mentioned hydraulic press for compression molding of porous carbon materials, a buffer damper is provided between the hydraulic frame and the machine frame.

[0015] In the above-mentioned hydraulic press for compression molding of porous carbon materials, the cooling component has a built-in temperature sensor.

[0016] Compared with the existing technology, the advantages of the present invention are: the cooling assembly is equipped with a quick-release assembly, which can realize the rapid separation and replacement of the mold and the hydraulic press, and improve the transfer rate of the cooling assembly; a sealing assembly is provided between the mold plates of the molding assembly, which can ensure the isolation effect of the internal carbon material from the outside during molding, and avoid oxidation that affects the molding quality; the quick-release assembly ensures normal ventilation of the cooling assembly, thereby obtaining the best cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a partial schematic diagram of the utility model;

[0019] Figure 3 It is another structural schematic diagram of the utility model;

[0020] In the figure, there are a frame 1, a base 11, a vertical frame 12, a limit cover 13, a hydraulic frame 2, a sliding guide rail 21, a limit block 22, a locking pin 23, a hydraulic cylinder 3, a molding assembly 4, a molded plate 41, a molded groove 42, an exhaust hole 43, a sealing groove 44, a sealing strip 45, a sealing surface 46, a quick-release assembly 5, a quick-release groove 51, a quick-release protrusion 52, a vent 53, a quick-release cylinder 54, a cooling assembly 6, a cooling pipe 61, a cooling channel 62, and a cooling cavity 63. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] like Figure 1-3 As shown, a hydraulic press for compression molding of porous carbon materials has an overall driving principle similar to that of existing hydraulic presses, specifically comprising a vertically arranged frame 1, a hydraulic frame 2 being slidably mounted on the frame 1, a hydraulic cylinder 3 being mounted between the frame 1 and the hydraulic frame 2, the hydraulic cylinder 3 providing lifting force to drive the hydraulic frame 2 to press down and apply compression molding force. A molding component 4 and a cooling component 6 opposite to the molding component 4 are mounted between the hydraulic frame 2 and the frame 1. After the porous carbon material is compression molded, the cooling component 6 starts to cool down rapidly, facilitating demoulding for continuous processing. A quick-release component 5 is provided between the molding component 4 and the cooling component 6. The quick-release component 5 enables rapid detachment and replacement of the molding component 4, and is locked by the cooling component 6 after assembly.

[0023] Specifically, to ensure the hydraulic press's position limiting effect, the frame 1 includes a base 11 and vertical frames 12 mounted on either side of the base 11. A position limiting cover 13 is mounted on top of the vertical frames 12. The hydraulic frame 2 slides up and down between the base 11 and the position limiting cover 13, with both sides slidingly connected to the vertical frames 12.

[0024] Furthermore, a sliding guide rail 21 and a displacement sensor are installed between the hydraulic frame 2 and the vertical frame 12. A limit block 22 is slidably mounted on the sliding guide rail 21 and located below the hydraulic frame 2. A locking pin 23 is installed between the limit block 22 and the vertical frame 12. Because the molding assembly 4 needs to be replaced according to the carbon material mold, the locking pin 23 is used to fix the limit block 22, thereby limiting the movement trajectory of the hydraulic frame 2.

[0025] Furthermore, the porous carbon material is formed by a molding assembly 4, which includes mold plates 41 disposed between the frame 1 and the hydraulic frame 2 and facing each other. Molding grooves 42 are distributed on opposite sides of the mold plates 41. The mold grooves 42 are connected to exhaust holes 43 extending to the outside of the mold plates 41. A sealing assembly is provided between the mold plates 41. After the mold plates 41 are attached to each other, the exhaust holes 43 between them drain excess air, ensuring the molding quality.

[0026] In addition, the sealing assembly includes sealing grooves 44 distributed along the circumference of the molded plate 41. Another molded plate 41 has a sealing strip 45 inserted into the sealing groove 44. A corrugated sealing surface 46 is provided between the sealing groove 44 and the sealing strip 45. Because the carbon material needs to be hot-pressed, the sealing assembly is added to isolate the internal carbon material from the outside to prevent high-temperature oxidation that may affect the final molding quality.

[0027] This embodiment also employs an air-cooling structure to rapidly cool the mold platen 41. The cooling assembly 6 includes a cooling tube 61 circumferentially surrounding the mold platen 41. This cooling tube 61 is a rectangular tube with a cooling channel 62 defined within it. A cooling cavity 63 is defined on the side of the mold platen 41 opposite the hydraulic frame 2 or the machine frame 1. The quick-release assembly 5 is installed between the mold platen 41 and the cooling tube 61. When the cooling channel 62 communicates with the cooling cavity 63, external air enters to achieve heat exchange.

[0028] It can be seen that the quick-release assembly 5 includes a quick-release groove 51 arranged at the edge of the molded plate 41, and a quick-release protrusion 52 is provided on the inner side of the cooling tube 61, which is slidably plugged into the quick-release groove 51. A one-to-one corresponding ventilation hole 53 is opened between the quick-release protrusion 52 and the quick-release groove 51, and a quick-release cylinder 54 is movably installed on the cooling tube 61. The quick-release cylinder 54 passes through the ventilation hole 53 and connects the cooling channel 62 with the cooling cavity 63.

[0029] Obviously, unlike conventional assembly structures, the quick-release barrel 54 in this embodiment is threadedly connected or slidably and telescopically connected to the cooling tube 61, and the quick-release barrel 54 is manually or motor-driven and plugged into the vent 53. This quick-release barrel 54 takes into account both assembly limit and ventilation and heat dissipation requirements, and can be driven manually or automatically according to actual needs.

[0030] Preferably, a buffer damper is provided between the hydraulic frame 2 and the frame 1 , and the buffer damper plays a role of shock absorption protection when the hydraulic frame 2 is lifted up or dropped down.

[0031] Obviously, the cooling component 6 has a built-in temperature sensor, and the temperature sensor and the displacement sensor are connected to the corresponding control unit. The hydraulic press monitors the working status of the molding component 4 and the cooling component 6 in real time during continuous molding.

[0032] To sum up, the principle of this embodiment is that the hydraulic frame 2 inside the hydraulic press slides up and down, driving the molding component 4 to mold the porous carbon material. During the molding process, the molding component 4 actively dissipates heat and cools down to achieve rapid molding of the porous carbon material. At the same time, the quick-release component 5 quickly switches the cooling component 6 according to the mold replacement.

[0033] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0034] Although this document frequently uses terms such as frame 1, base 11, stand 12, limit cover 13, hydraulic frame 2, sliding guide rail 21, limit block 22, locking pin 23, hydraulic cylinder 3, molding assembly 4, mold plate 41, mold groove 42, exhaust hole 43, sealing groove 44, sealing strip 45, sealing surface 46, quick-release assembly 5, quick-release groove 51, quick-release protrusion 52, vent 53, quick-release barrel 54, cooling assembly 6, cooling pipe 61, cooling channel 62, and cooling chamber 63, the use of other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A hydraulic press for molding porous carbon materials, comprising a vertically arranged frame (1), a hydraulic frame (2) slidably mounted on the frame (1), a hydraulic cylinder (3) mounted between the frame (1) and the hydraulic frame (2), characterized in that: A forming assembly (4) and a cooling assembly (6) opposite to the forming assembly (4) are installed between the hydraulic frame (2) and the machine frame (1), and a quick-release assembly (5) is provided between the forming assembly (4) and the cooling assembly (6).

2. A hydraulic press for compression molding of porous carbon materials according to claim 1, characterized in that: The frame (1) comprises a base (11) and vertical frames (12) installed on both sides of the base (11), and a limit cover (13) is installed on the top of the vertical frame (12).

3. A hydraulic press for compression molding of porous carbon materials according to claim 2, characterized in that: A sliding guide rail (21) and a displacement sensor are installed between the hydraulic frame (2) and the vertical frame (12); a limit block (22) located below the hydraulic frame (2) is slidably installed on the sliding guide rail (21); and a locking latch (23) is installed between the limit block (22) and the vertical frame (12).

4. A hydraulic press for compression molding porous carbon materials according to claim 3, characterized in that: The molding assembly (4) includes a mold plate (41) disposed between the frame (1) and the hydraulic frame (2) and facing each other vertically. A mold groove (42) is distributed on the opposite side of the mold plate (41). The mold groove (42) is connected to an exhaust hole (43) extending to the outside of the mold plate (41). A sealing assembly is provided between the mold plates (41).

5. A hydraulic press for compression molding of porous carbon materials according to claim 4, characterized in that: The sealing assembly includes sealing grooves (44) distributed along the circumference of the molded plate (41), and another molded plate (41) has a sealing strip (45) inserted into the sealing groove (44). A sealing surface (46) that fits each other and is wavy is provided between the sealing groove (44) and the sealing strip (45).

6. A hydraulic press for compression molding porous carbon materials according to claim 3, characterized in that: The cooling assembly (6) includes a cooling pipe (61) circumferentially surrounding the mold plate (41), the cooling pipe (61) being a rectangular pipe with a cooling channel (62) therein, a cooling cavity (63) being left on the side of the mold plate (41) opposite to the hydraulic frame (2) or the machine frame (1), and the quick-release assembly (5) being installed between the mold plate (41) and the cooling pipe (61).

7. A hydraulic press for compression molding porous carbon materials according to claim 6, characterized in that: The quick-release assembly (5) includes a quick-release groove (51) arranged at the edge of the molded plate (41), a quick-release protrusion (52) slidably plugged into the quick-release groove (51) is provided on the inner side of the cooling tube (61), a one-to-one corresponding ventilation opening (53) is opened between the quick-release protrusion (52) and the quick-release groove (51), and a quick-release cylinder (54) is movably installed on the cooling tube (61), and the quick-release cylinder (54) passes through the ventilation opening (53) and connects the cooling channel (62) with the cooling cavity (63).

8. A hydraulic press for compression molding porous carbon materials according to claim 7, characterized in that: The quick-release tube (54) is threadedly connected or slidably telescopically connected to the cooling pipe (61), and the quick-release tube (54) is plugged and fixed to the vent (53) by manual or motor drive.

9. The hydraulic press for compression molding of porous carbon materials according to claim 1, characterized in that: A buffer damper is provided between the hydraulic frame (2) and the frame (1).

10. The hydraulic press for compression molding of porous carbon materials according to claim 1, characterized in that: The cooling component (6) has a built-in temperature sensor.

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