Extrusion molding machine for processing silicon carbide product

Abstract

The utility model discloses an extrusion forming machine for processing silicon carbide products, which comprises a frame, self-separating dies, a first hydraulic cylinder and an extrusion mechanism, the plurality of self-separating dies are slidably mounted on the frame, the first hydraulic cylinder is mounted on the frame, the power output end of the first hydraulic cylinder is arranged corresponding to the outermost self-separating die, and the power output end of the first hydraulic cylinder is arranged corresponding to the outermost self-separating die. The extrusion mechanism is mounted at the bottom of the rack, and a plurality of extrusion ends of the extrusion mechanism are matched with the self-separation mold; the self-separation mold comprises a left mold shell, a right mold shell and a spring, the left mold shell and the right mold shell are symmetrically arranged, a cavity used for a silicon carbide product is formed between the left mold shell and the right mold shell, and the spring is installed on a lug plate of the right mold shell and arranged opposite to the lug plate on the left mold shell. When the forming machine is used for producing irregular products or products which are not smooth enough in surface, the formed products can be quickly and conveniently taken out. In addition, the self-separating dies can be separated from each other in a non-working state, so that maintenance, cleaning and inspection are facilitated.

Description

Technical Field

[0001] This utility model relates to the technical field of silicon carbide product molding machines, and in particular to an extrusion molding machine for processing silicon carbide products. Background Technology

[0002] Silicon carbide products are defined by their materials and specifications, and are manufactured using silicon carbide materials to create various shapes and sizes. For example, common silicon carbide bolts are high-performance fasteners widely used in high-temperature, high-pressure, and corrosive environments. The production process for silicon carbide ceramic bolts involves: first, preparing a mold; then, molding the prepared silicon carbide in the mold using dry pressing, isostatic pressing, or slip casting; and finally, sintering the molded silicon carbide bolt blank to achieve ceramicization.

[0003] When using die-forming technology for production, regular products with smooth surfaces can generally be extruded and ejected from the die in one go. Conversely, irregular or uneven products are difficult to eject in one go. For silicon carbide bolts, the threads and the bolt body are formed together in the die, making it difficult to quickly remove them in one ejection. Therefore, there is an urgent need for an extrusion molding machine for processing silicon carbide products that allows for convenient and rapid removal of the product. Utility Model Content

[0004] The purpose of this invention is to provide an extrusion molding machine for processing silicon carbide products, so as to solve the problem that irregular or uneven silicon carbide products are difficult to be quickly removed from the extrusion molding machine.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An extrusion molding machine for processing silicon carbide products includes a frame, self-separating dies, a first hydraulic cylinder, and an extrusion mechanism. Multiple self-separating dies are slidably mounted on the frame. The first hydraulic cylinder is mounted on the frame, and its power output end corresponds to the outermost self-separating die. The extrusion mechanism is mounted at the bottom of the frame, and its multiple extrusion ends are adapted to the self-separating dies.

[0007] The self-separating mold includes a left mold shell, a right mold shell, and a spring. The left mold shell and the right mold shell are symmetrically arranged and a cavity for silicon carbide products is formed between them. The spring is mounted on the ear plate of the right mold shell and is arranged opposite to the ear plate on the left mold shell.

[0008] A further technical solution is: the self-separating mold is slidably installed in the slide groove of the frame, and two positioning sliders located on the two outer sides of the self-separating mold are slidably installed in the slide groove, and the positioning sliders are fixed by bolts.

[0009] A further technical solution is that a pad is provided on the side of the self-separating mold.

[0010] A further technical solution is: the frame is provided with an ejection mechanism adapted to the self-separating mold. The ejection mechanism includes a cylinder, a horizontal plate and ejector rods. The cylinder is vertically mounted on the bottom plate of the frame. The horizontal plate is mounted on the power output end of the cylinder. Multiple ejector rods are vertically mounted on the horizontal plate. The load-bearing plate of the frame is provided with positioning holes adapted to the ejector rods.

[0011] A further technical solution is: the extrusion mechanism includes a second hydraulic cylinder, a lifting plate, and a die head. The second hydraulic cylinder is vertically mounted downwards on the top plate of the frame. The lifting plate is mounted on the power output end of the second hydraulic cylinder. Multiple die heads are vertically mounted downwards on the lifting plate, and each die head corresponds to a multiple self-separating mold.

[0012] A further technical solution is that the separation distance between the left mold shell and the right mold shell is greater than the maximum diameter of the silicon carbide product.

[0013] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0014] This invention discloses an extrusion molding machine for processing silicon carbide products. When using this molding machine to form irregular or unevenly smooth products, the self-separating mold automatically separates after the pressure on it is released, achieving a quick and convenient removal of the molded product. Furthermore, the self-separating molds can separate when not in operation, facilitating maintenance, cleaning, and inspection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an extrusion molding machine for processing silicon carbide products according to the present invention.

[0016] Figure 2 This utility model Figure 1 A structural diagram from a top-down perspective.

[0017] Figure 3 This utility model Figure 1 A schematic diagram of the self-separating mold.

[0018] Figure 4 This utility model Figure 3A schematic diagram of the structure in another state.

[0019] Reference numerals: 1. Frame; 2. Self-separating mold; 3. First hydraulic cylinder; 4. Extrusion mechanism; 5. Left mold shell; 6. Right mold shell; 7. Spring; 8. Ear plate; 9. Slide groove; 10. Positioning slider; 11. Pad plate; 12. Ejection mechanism; 13. Cylinder; 14. Horizontal plate; 15. Ejector rod; 16. Second hydraulic cylinder; 17. Lifting plate; 18. Die head. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0026] This implementation example Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an extrusion molding machine for processing silicon carbide products includes a frame 1, a self-separating die 2, a first hydraulic cylinder 3, and an extrusion mechanism 4. Multiple self-separating dies 2 are slidably mounted on the frame 1. The first hydraulic cylinder 3 is mounted on the frame 1, and the power output end of the first hydraulic cylinder 3 is correspondingly set with the outermost self-separating die 2. The extrusion mechanism 4 is mounted at the bottom of the frame 1, and multiple extrusion ends of the extrusion mechanism 4 are adapted to the self-separating dies 2. The self-separating die 2 includes a left die shell 5, a right die shell 6, and a spring 7. The left die shell 5 and the right die shell 6 are symmetrically arranged, and a cavity for silicon carbide products is formed between them. The spring 7 is mounted on the ear plate 8 of the right die shell 6, and the spring 7 is opposite to the ear plate 8 on the left die shell 5.

[0027] Generally, the two ends of the spring 7 can be connected to the two ear plates 8 on the left mold shell 5 and the right mold shell 6 respectively. However, for the later disassembly and installation of the left mold shell 5 and the right mold shell 6, without affecting the operation of the spring 7, a single-sided installation method can be used, that is, the spring 7 can be installed on either the left mold shell 5 or the right mold shell 6 ear plate 8.

[0028] When the left mold shell 5 and the right mold shell 6 are combined, a molding cavity for silicon carbide products will be formed between them.

[0029] Here, we take silicon carbide ceramic bolts as an example: First, the first hydraulic cylinder 3 extends to press each self-separating mold 2 against itself, ensuring that each self-separating mold 2 forms a molding cavity; then, the raw material is quantitatively filled into the molding cavity by automatic feeding or manual filling; next, the extrusion mechanism 4 intervenes to extrude and shape the material in the molding cavity; finally, the first hydraulic cylinder 3 retracts, and under the action of the spring 7, the left mold shell 5 and the right mold shell 6 separate, exposing the molded product inside for easy and quick removal.

[0030] It is worth noting that if the amount of filler is difficult to control during filling, the molding cavity can be filled completely. The shape and size of the molding cavity should be consistent with the specifications of the silicon carbide ceramic bolt to be molded, so as to achieve the purpose of quantitative filling.

[0031] Preferably, the self-separating mold 2 is slidably installed in the slide groove 9 of the frame 1, and two positioning sliders 10 located on the outer sides of the self-separating mold 2 are slidably installed in the slide groove 9. The positioning sliders 10 are fixed by bolts.

[0032] The positioning sliders 10 on both sides are mainly used to control the separation distance between each self-separating mold 2.

[0033] Preferably, a pad 11 is provided on the side of the self-separating mold 2.

[0034] The pad 11 is made of high-strength and high-hardness material, mainly for protection against impact and compression. Example

[0035] Based on the above embodiment, this embodiment shows that the frame 1 is provided with an ejection mechanism 12 adapted to the self-separating mold 2. The ejection mechanism 12 includes a cylinder 13, a horizontal plate 14 and ejector rods 15. The cylinder 13 is vertically mounted on the bottom plate of the frame 1. The horizontal plate 14 is mounted on the power output end of the cylinder 13. Multiple ejector rods 15 are vertically mounted on the horizontal plate 14. The load-bearing plate of the frame 1 is provided with positioning holes adapted to the ejector rods 15.

[0036] For some simple and relatively smooth products, the left mold shell 5 and right mold shell 6 can be separated, and the product inside can be easily removed. However, for some adhesive products, which are not easy to remove, the cylinder 13 drives the ejector rod 1 to intermittently and slightly impact the bottom of the product, generating vibration to separate the product and facilitate its removal.

[0037] Preferably, the extrusion mechanism 4 includes a second hydraulic cylinder 16, a lifting plate 17, and a die head 18. The second hydraulic cylinder 16 is vertically mounted on the top plate of the frame 1, the lifting plate 17 is mounted on the power output end of the second hydraulic cylinder 16, and multiple die heads 18 are vertically mounted on the lifting plate 17, with each die head 18 corresponding to a multiple self-separating mold 2.

[0038] The second hydraulic cylinder 16 drives the mold head 18 to descend, which is used to compact the material in the mold cavity of the self-separating mold 2 to obtain the molded product.

[0039] Preferably, the separation distance between the left mold shell 5 and the right mold shell 6 is greater than the maximum diameter of the silicon carbide product.

[0040] The separation distance between the left mold shell 5 and the right mold shell 6 is the minimum distance between them, ensuring that the silicon carbide product has enough space to be taken out from between the left mold shell 5 and the right mold shell 6.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An extrusion molding machine for processing silicon carbide products, characterized in that: The assembly includes a frame (1), self-separating molds (2), a first hydraulic cylinder (3), and an extrusion mechanism (4). Multiple self-separating molds (2) are slidably mounted on the frame (1). The first hydraulic cylinder (3) is mounted on the frame (1), and its power output end corresponds to the outermost self-separating mold (2). The extrusion mechanism (4) is mounted at the bottom of the frame (1), and multiple extrusion ends of the extrusion mechanism (4) are adapted to the self-separating molds (2). The self-separating mold (2) includes a left mold shell (5), a right mold shell (6) and a spring (7). The left mold shell (5) and the right mold shell (6) are symmetrically arranged and a cavity for silicon carbide products is formed between them. The spring (7) is installed on the ear plate (8) of the right mold shell (6) and the spring (7) is arranged opposite to the ear plate (8) on the left mold shell (5).

2. The extrusion molding machine for processing silicon carbide products according to claim 1, characterized in that: The self-separating mold (2) is slidably installed in the slide groove (9) of the frame (1). Two positioning sliders (10) located on the two outer sides of the self-separating mold (2) are slidably installed in the slide groove (9). The positioning sliders (10) are fixed by bolts.

3. The extrusion molding machine for processing silicon carbide products according to claim 1, characterized in that: A pad (11) is provided on the side of the self-separating mold (2).

4. The extrusion molding machine for processing silicon carbide products according to claim 1, characterized in that: The frame (1) is provided with an ejection mechanism (12) adapted to the self-separating mold (2). The ejection mechanism (12) includes a cylinder (13), a horizontal plate (14) and ejector rods (15). The cylinder (13) is vertically mounted on the bottom plate of the frame (1). The horizontal plate (14) is mounted on the power output end of the cylinder (13). Multiple ejector rods (15) are vertically mounted on the horizontal plate (14). The load-bearing plate of the frame (1) is provided with positioning holes adapted to the ejector rods (15).

5. The extrusion molding machine for processing silicon carbide products according to claim 1, characterized in that: The extrusion mechanism (4) includes a second hydraulic cylinder (16), a lifting plate (17), and a die head (18). The second hydraulic cylinder (16) is vertically mounted on the top plate of the frame (1). The lifting plate (17) is mounted on the power output end of the second hydraulic cylinder (16). Multiple dies (18) are vertically mounted on the lifting plate (17), and each die head (18) corresponds to a multiple self-separating mold (2).

6. The extrusion molding machine for processing silicon carbide products according to claim 1, characterized in that: The separation distance between the left mold shell (5) and the right mold shell (6) is greater than the maximum diameter of the silicon carbide product.

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