Hydraulic forming device

Abstract

The utility model discloses a hydraulic forming device which comprises a base, a hydraulic cylinder, a lifting plate, a crucible extrusion forming device, a plurality of guide columns, an extrusion head, a top plate and a rotary power device, the guide columns are connected between the base and the top plate, and the lifting plate is arranged between the base and the top plate and is in sliding connection with the guide columns. The hydraulic cylinder is installed on the base, a piston rod of the hydraulic cylinder is connected with the lifting plate, the extrusion head is movably connected to the top plate, the rotary power device is installed on the top plate and is in transmission connection with the extrusion head, and the crucible extrusion forming device is installed on the lifting plate and is matched with the extrusion head. The hydraulic forming device is simple in structure, convenient to use and practical, the extrusion head is driven by the rotary power device to rotate, the adhesion phenomenon cannot occur after the extrusion head falls off a formed crucible, and demolding is completed under the condition that the use amount of a demolding agent is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic forming technology, and specifically relates to a hydraulic forming device. Background Technology

[0002] A crucible is a container used for melting and refining molten metals, as well as for heating and reacting solids and liquids. Crucibles are generally made of porcelain and come in sizes such as 10, 15, 25, and 50 mL. Types include porcelain crucibles, iron crucibles, and alumina crucibles. Crucibles are heat-resistant and used for calcining precipitates, melting salts that do not react with the crucible, and dehydrating hydrated crystals. Crucibles are made from materials such as lime, carbon, and various refractory clays. Crucible manufacturing is a precision process integrating materials science, forming technology, and heat treatment. The manufacturing process requires selecting appropriate materials based on the crucible's intended use and ensuring product performance through forming, sintering, and processing. Crucible forming typically involves feeding raw materials into a mold and then extruding it into the desired shape. Traditionally, after extrusion, demolding is required, or a cylinder is used to push out the bottom template, ejecting the internally formed crucible. The extruded crucible is then manually removed. However, this demolding method is slow, and the extrusion head needs to be coated with a release agent to prevent difficulties in demolding. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a hydraulic forming device with a simple structure and convenient and practical use. The extrusion head is driven to rotate by a rotary power device, so that the extrusion head will not stick after falling out of the forming crucible, thus achieving demolding with reduced use of release agent.

[0004] A hydraulic forming apparatus includes a base, a hydraulic cylinder, a lifting plate, a crucible extrusion forming device, guide columns, an extrusion head, a top plate, and a rotary power device. Several guide columns are connected between the base and the top plate. The lifting plate is disposed between the base and the top plate and slidably connected to the guide columns. The hydraulic cylinder is mounted on the base, and its piston rod is connected to the lifting plate. The extrusion head is movably connected to the top plate. The rotary power device is mounted on the top plate and is drively connected to the extrusion head. The crucible extrusion forming device is mounted on the lifting plate and cooperates with the extrusion head. The crucible extrusion forming device includes a fixed plate, guide wheels, a slide, crucible forming devices, and a displacement cylinder. The fixed plate is connected to the lifting plate. Two guide wheels are respectively connected to both ends of the fixed plate. The slide is slidably connected to the fixed plate. Two crucible forming devices are symmetrically connected to the slide. The displacement cylinder is connected to the fixed plate, and its piston rod is connected to the slide.

[0005] Preferably, the crucible forming device includes a hydraulic cylinder, a pulling rod, a forming mold, an anti-detachment device, and a hinge rod. One end of the hydraulic cylinder is hinged to the slide and the piston rod is connected to the pulling rod. One end of the pulling rod is hinged to the middle of the forming mold. The two sides of the lower end of the forming mold are movably connected to the slide through the hinge rods. The anti-detachment device is connected to the upper end of the forming mold.

[0006] Preferably, the anti-detachment device includes positioning posts, a support plate, and U-shaped handles. Two positioning holes are opened on both sides of the upper end of the molding die. The two U-shaped handles are symmetrically connected to the support plate. The positioning posts are symmetrically inserted into the corresponding positioning holes and cooperate with the U-shaped handles.

[0007] Preferably, a support plate is installed on the carriage, and the support plate is located below the forming mold and on the side of the hinge rod near the oil cylinder.

[0008] Preferably, a limit switch is connected to the support plate.

[0009] Beneficial effects:

[0010] (1) The hydraulic molding device of this utility model has a simple structure and is convenient and practical. The extrusion head is driven to rotate by a rotating power device, so that the extrusion head will not stick after falling out of the molding crucible, thus achieving demolding with reduced use of release agent.

[0011] (2) The present invention provides a hydraulic forming device that controls the rotation of the forming mold by an oil cylinder, so that the crucible formed by extrusion in the forming mold can be quickly demolded. At the same time, it is equipped with an anti-demolding device to prevent the crucible from falling out when the forming mold is rotated, thereby reducing the difficulty of demolding the crucible.

[0012] (3) The hydraulic forming device of this utility model drives the slide to move through the displacement cylinder, so that the two crucible forming devices can switch back and forth, so as to realize the continuous extrusion forming of crucibles by the cooperation of the two crucible forming devices, thereby improving the production speed of crucibles. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the molding device.

[0014] Figure 2 This is a schematic diagram of the crucible extrusion molding device;

[0015] 1-Base, 2-Hydraulic cylinder, 3-Lifting plate, 4-Crucible extrusion molding device, 41-Fixed plate, 42-Guide wheel, 43-Slide carriage, 44-Crucible molding device, 45-Oil cylinder, 46-Pull rod, 47-Molding die, 48-Positioning column, 49-Positioning hole, 410-Bearing plate, 411-U-shaped handle, 5-Guide column, 6-Extrusion head, 7-Top plate, 8-Rotation power device. Detailed Implementation

[0016] The embodiments of this utility model are further described below with reference to the accompanying drawings.

[0017] Example 1

[0018] like Figures 1 to 2 As shown; a hydraulic forming device includes a base 1, a hydraulic cylinder 2, a lifting plate 3, a crucible extrusion forming device 4, guide columns 5, an extrusion head 6, a top plate 7, and a rotary power device 8. Several guide columns 5 are connected between the base 1 and the top plate 7. The lifting plate 3 is disposed between the base 1 and the top plate 7 and is slidably connected to the guide columns 5. The hydraulic cylinder 2 is mounted on the base 1, and its piston rod is connected to the lifting plate 3. The extrusion head 6 is movably connected to the top plate 7. The rotary power device 8 is mounted on the top plate 7 and is drively connected to the extrusion head 6. The crucible extrusion forming device 4 is mounted on the lifting plate 3 and cooperates with the extrusion head 6. The crucible extrusion forming device 4 includes a fixed plate 41, guide wheels 42, a slide 43, crucible forming devices 44, and a displacement cylinder. The fixed plate 41 is connected to the lifting plate 3. Two guide wheels 42 are respectively connected to both ends of the fixed plate 41. The slide 43 is slidably connected to the fixed plate 41. Two crucible forming devices 44 are symmetrically connected to the slide 43. The displacement cylinder is connected to the fixed plate 41 and the piston rod is connected to the slide 43; the crucible forming device 44 includes a cylinder 45, a pulling rod 46, a forming mold 47, an anti-detachment device, and a hinge rod. One end of the cylinder 45 is hinged to the slide 43 and the piston rod is connected to the pulling rod 46. One end of the pulling rod 46 is hinged to the middle of the forming mold 47. The two sides of the lower end of the forming mold 47 are movably connected to the slide 43 through the hinge rods. The anti-detachment device is connected to the upper end of the forming mold 47. The mold includes positioning posts 48, a support plate 410, and U-shaped handles 411. Two positioning holes 49 are opened on both sides of the upper end of the molding mold 47. The two U-shaped handles 411 are symmetrically connected to the support plate 410. The four positioning posts 48 are symmetrically inserted into the corresponding positioning holes 49 in pairs and cooperate with the U-shaped handles 411. A support plate is installed on the slide 43. The support plate is located below the molding mold 47 and on the side of the hinge rod near the oil cylinder 45. A limit switch is connected to the support plate.

[0019] The raw material is pre-introduced into the forming mold 47. A displacement cylinder drives the slide 43 to move, bringing the forming mold 47 below the extrusion head 6. Simultaneously, the rotary power device 8 and hydraulic cylinder 2 are activated. The rotary power device 8 rotates the extrusion head 6, while the hydraulic cylinder 2 raises the lifting plate 3, causing the extrusion head 6 to rotate and insert into the forming mold 47 to extrude the raw material into the crucible. After the crucible completes extrusion, the hydraulic cylinder 2 lowers the lifting plate 3, causing the extrusion head 6 to exit the forming mold 47. Then, the displacement cylinder drives the slide 43 to move until the forming mold 47 reaches one end of the fixed plate 41. The bearing plate 410 is then placed on top of the forming mold 47, and the positioning pin 48 is inserted into the positioning hole 49 to position the U-shaped handle 411, preventing the crucible from sliding out when the forming mold 47 rotates. Then, the hydraulic cylinder 45 drives the pulling rod 46, which rotates the forming mold 47 along the hinge rod, causing it to rotate 180 degrees. At this point, the lifting platform of the lifting vehicle contacts the bearing plate 410 and the positioning pin is removed. After the positioning column 48 is removed, the lifting platform descends. The formed crucible and the support plate 410 fall onto the lifting platform due to gravity. When the crucible is not demolded, the forming mold 47 needs to be tapped to assist in demolding. After demolding, another crucible forming device 44 simultaneously completes the extrusion forming of the crucible. At this time, the lifting plate 3 descends, and then the displacement cylinder controls the slide 43 to move. As the slide 43 moves, the bottom of the forming mold 47 away from the oil cylinder 45 contacts the guide wheel 42. The guide wheel 42 supports the bottom of the forming mold 47 away from the oil cylinder 45. At the same time, the oil cylinder 45 drives the pulling rod 46, which pulls the forming mold 47, causing the forming mold 47 to rotate and reset. After the forming mold 47 resets, the support plate will contact half of the bottom of the forming mold 47. The support plate provides support force during crucible extrusion. At the same time, the limit switch senses whether the forming mold 47 has reset. After the forming mold 47 has reset, the raw material is introduced into the forming mold 47. In this way, the two crucible forming devices 44 work together to extrude and form crucibles in a cycle.

[0020] The specific embodiments of this utility model have been described in detail above, but they are merely examples, and this utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to this utility model are also within the scope of this utility model. Therefore, all equivalent changes and modifications made without departing from the spirit and scope of this utility model are covered within the scope of this utility model.

Claims

1. A hydroforming device, characterized by: The device includes a base (1), a hydraulic cylinder (2), a lifting plate (3), a crucible extrusion molding device (4), guide columns (5), an extrusion head (6), a top plate (7), and a rotary power device (8). Several guide columns (5) are connected between the base (1) and the top plate (7). The lifting plate (3) is located between the base (1) and the top plate (7) and is slidably connected to the guide columns (5). The hydraulic cylinder (2) is mounted on the base (1) and its piston rod is connected to the lifting plate (3). The extrusion head (6) is movably connected to the top plate (7). The rotary power device (8) is mounted on the top plate (7) and is drively connected to the extrusion head (6). The crucible extrusion forming device (4) is installed on the lifting plate (3) and cooperates with the extrusion head (6); the crucible extrusion forming device (4) includes a fixed plate (41), guide wheels (42), a slide (43), a crucible forming device (44) and a displacement cylinder. The fixed plate (41) is connected to the lifting plate (3), the two guide wheels (42) are respectively connected to the two ends of the fixed plate (41), the slide (43) is slidably connected to the fixed plate (41), the two crucible forming devices (44) are symmetrically connected to the slide (43), and the displacement cylinder is connected to the fixed plate (41) and the piston rod is connected to the slide (43).

2. The hydraulic forming apparatus as described in claim 1, characterized in that: The crucible forming device (44) includes a hydraulic cylinder (45), a pulling rod (46), a forming mold (47), an anti-detachment device, and a hinge rod. One end of the hydraulic cylinder (45) is hinged to the slide (43), and the piston rod is connected to the pulling rod (46). One end of the pulling rod (46) is hinged to the middle of the forming mold (47). The two sides of the lower end of the forming mold (47) are movably connected to the slide (43) through the hinge rod. The anti-detachment device is connected to the upper end of the forming mold (47).

3. The hydraulic forming apparatus as described in claim 2, characterized in that: The anti-detachment device includes positioning posts (48), a support plate (410), and a U-shaped handle (411). Two positioning holes (49) are opened on both sides of the upper end of the molding mold (47). The two U-shaped handles (411) are symmetrically connected to the support plate (410). The four positioning posts (48) are symmetrically inserted into the corresponding positioning holes (49) and cooperate with the U-shaped handles (411).

4. The hydraulic forming apparatus as described in claim 3, characterized in that: A support plate is installed on the slide (43), which is located below the forming mold (47) and on the side of the hinge rod near the oil cylinder (45).

5. The hydraulic forming apparatus as described in claim 4, characterized in that: Limit switches are connected to the support plate.

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