A square graphite crucible one-time forming mold

Abstract

The utility model discloses a square graphite crucible one-time forming die, including die main body, head plate and movable door, die main body one end is provided with feed inlet, and the other end is provided with discharge gate, and the cavity is formed between feed inlet and discharge gate, the end face of die main body opposite discharge gate is fixed with head plate, the panel on head plate is provided with square material groove, and square material groove communicates discharge gate, and the movable door is slidably connected on head plate to cover square material groove, and the base forming cavity is formed between movable door and head plate. The utility model discloses through extruding the bottom and the wall of one-time forming square crucible, and the made bottom body is dense, and the strength is big, and the texture is uniform, and simple operation, and the production cost is low, and the bottom body can be freely controlled according to need, and production is more flexible, and the scrap rate is low.

Description

Technical Field

[0001] This utility model relates to the field of graphite crucible manufacturing technology, and more specifically to a one-time forming mold for a square graphite crucible. Background Technology

[0002] For a long time, graphite crucibles have been formed mainly by vibration molding and graphite electrode forming. However, the products produced by vibration molding have low and uneven density, are prone to cracking during firing, and the length of the crucible is limited by the size of the mold. Graphite crucibles formed by graphite electrodes are expensive, have a complicated processing process, and have a high damage rate.

[0003] Therefore, how to provide a square graphite crucible mold that is simple to operate, low in cost, and produces a uniform texture of finished product is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the present invention provides a one-time forming mold for a square graphite crucible, which aims to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A one-piece molding die for a square graphite crucible includes a die body, a head plate, and a movable door;

[0007] The mold body has a feed inlet at one end and a discharge outlet at the other end, with a cavity formed between the feed inlet and the discharge outlet; the end plate is fixed to the end face of the mold body opposite to the discharge outlet; a square material groove is formed on the panel of the end plate, and the square material groove is connected to the discharge outlet; the movable door is slidably connected to the end plate to cover the square material groove; a base forming cavity is formed between the movable door and the end plate.

[0008] The beneficial effects of this utility model are that the raw material enters the mold body through the feed port and is squeezed into the base forming cavity through the discharge port and square material groove. The crucible wall and crucible bottom are extruded and formed in one step. After the crucible bottom is formed, the required length of the crucible wall can be freely selected by opening the movable door. The graphite crucible manufactured by this mold has high density, high strength and uniform texture.

[0009] Preferably, the mold body is rotatably connected to a stirring blade relative to the inner wall of the feed inlet. The stirring blade agitates the raw material entering the mold, making it more uniform, enhancing its fluidity, and improving the crucible forming efficiency.

[0010] Preferably, a square nozzle is fixed on the side panel of the end cap plate away from the mold body, and a square material groove is formed circumferentially on the end cap plate opposite to the square nozzle. The square nozzle protruding from the end cap plate ensures more accurate and aesthetically pleasing forming of the bottom of the square crucible.

[0011] Preferably, a crucible bottom plate is fixed to the outer wall of the end of the movable door away from the end cap plate; the crucible bottom plate corresponds to the square material trough; the base forming cavity is formed between the crucible bottom plate and the square nozzle core. The crucible bottom plate corresponds to the square nozzle core, so that the crucible wall and crucible bottom are integrally extruded and formed.

[0012] Preferably, the movable door has two panels, each with a slot at its top and bottom that engages with the upper and lower ends of the end cap plate. The two panels are driven by a hydraulic cylinder to move closer or further apart along the end cap plate. When the opposite ends of the two panels approach each other, they form the crucible bottom shape plate. When the two panels are closed, the crucible bottom is formed; when open, continuous extrusion is possible. Different crucible wall heights can be selected by controlling the discharge length of the crucible.

[0013] Preferably, the mold body includes a hollow outer shell and a mold core, with the mold core coaxially fixed to the inner cavity of the hollow outer shell; a raw material flow channel is formed between the outer wall of the mold core and the inner wall of the hollow outer shell. The raw material enters the square material trough from the raw material flow channel for extrusion molding, and the mold core reduces the waste of raw materials.

[0014] Preferably, the inner core of the mold, from the inlet to the outlet, consists of a pointed section, a transition section, and a forming section in sequence. This improves the flow efficiency of the raw material within the material flow channel.

[0015] Preferably, the hollow shell is divided into a large-diameter section, an inclined section, and a small-diameter section in sequence from the feed port to the discharge port, and the large-diameter section is connected to the discharge port of the extruder through a connector.

[0016] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a one-time forming mold for a square graphite crucible. By extruding the bottom and wall of the square crucible in one step, the crucible body produced has high density, high strength, and uniform texture. Moreover, the operation is simple and the production cost is low. The crucible body can be freely controlled and selected as needed, making production more flexible and reducing the scrap rate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 A schematic diagram of the mold structure provided for this utility model;

[0019] Figure 2 This is a schematic diagram of the mold inlet structure provided by this utility model;

[0020] Figure 3 A cross-sectional view of the mold body provided for this utility model.

[0021] in,

[0022] 1-Mold body; 11-Feed inlet; 12-Hollow outer shell; 13-Mold core; 14-Raw material flow channel;

[0023] 2-End plate; 21-Square trough;

[0024] 3-Moving door; 31-Bottom plate of the crucible; 32-Slot;

[0025] 4-Square nozzle;

[0026] 5-Agitator blades. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] See appendix Figures 1-3 This utility model discloses a one-time forming mold for a square graphite crucible, including a mold body 1, a head plate 2, and a movable door 3;

[0029] The mold body 1 has a feed inlet 11 at one end and a discharge outlet at the other end, and a cavity is formed between the feed inlet 11 and the discharge outlet; the end plate 2 is fixed on the end face of the mold body 1 opposite to the discharge outlet; a square material groove 21 is provided on the panel of the end plate 2, and the square material groove 21 is connected to the discharge outlet; the movable door 3 is slidably connected to the end plate 2 to cover the square material groove 21; there is a base forming cavity between the movable door 3 and the end plate 2.

[0030] In this embodiment, the mold body 1 includes a hollow outer shell 12 and a mold core 13, with the mold core 13 coaxially fixed in the inner cavity of the hollow outer shell 12; a raw material flow channel 14 is provided between the outer wall of the mold core 13 and the inner wall of the hollow outer shell 12.

[0031] like Figure 1 and 3 As shown, the raw material enters the inner cavity of the hollow shell through the feed port. Due to the obstruction of the mold core, the raw material flows through the raw material channel from the discharge port of the hollow shell through the square material groove on the end plate into the base forming cavity. During this process, the movable door is in the closed state, that is, the movable door covers the square material groove. The extruded raw material is extruded in the base forming cavity to form the base of the square crucible. The base is in contact with the movable door. After the base is completely extruded and formed, the movable door is opened to continue the raw material extrusion operation to form the crucible wall. The crucible wall is cut according to the required height to complete the production of the square crucible.

[0032] To further optimize the above technical solution and improve extrusion efficiency, the inner core 13 of the mold consists of a pointed section, a transition section, and a forming section from the feed port 11 to the discharge port. The raw material enters the forming cavity of the base through the pointed section, the transition section, and the forming section in sequence, thereby improving extrusion efficiency through a smooth transition.

[0033] To further optimize the above technical solution, the hollow shell 12 consists of a large-diameter section, an inclined section, and a small-diameter section in sequence from the feed port 11 to the discharge port. The large-diameter section is connected to the discharge port of the extruder through a connector.

[0034] The large-diameter section of the extruder connects to the hollow outer shell, facilitating the extrusion of materials that are far from the core. The transition section and the small-diameter section correspond to the transition section and forming section of the die core, respectively, and the resulting material flow channel ensures the smooth extrusion process.

[0035] In some other specific embodiments, in order to ensure that the crucible molding is more uniform and reduce the scrap rate, the mold body 1 is rotatably connected to the inner wall of the feed port 11.

[0036] In this embodiment, a square nozzle 4 is fixed on the side panel of the end plate 2 away from the mold body 1, and a square material groove 21 is provided on the circumference of the end plate 2 relative to the square nozzle 4.

[0037] The square nozzle core has a certain thickness and protrudes from the end plate. There is a certain distance between the square nozzle core and the movable door to form a base forming cavity. The square nozzle core is used to squeeze and guide the material coming out of the square material trough to ensure the crucible forming quality.

[0038] To further optimize the above technical solution, a crucible bottom plate 31 is fixed to the outer wall of the movable door 3 away from the end cap plate 2; the crucible bottom plate 31 corresponds to the square material trough 21; a base forming cavity is formed between the crucible bottom plate 31 and the square nozzle core 4. The cooperation between the crucible bottom plate and the square nozzle core can ensure the forming thickness of the crucible bottom.

[0039] The end plate has a notch on the face of the crucible bottom plate, so that the crucible bottom plate forms the crucible bottom forming cavity corresponding to the square nozzle core. The distance between the crucible bottom plate and the square nozzle core is the thickness of the crucible bottom.

[0040] To further optimize the above technical solution, the movable door 3 is provided with two doors. The top and bottom of the two movable doors 3 are provided with slots 32 and are engaged with the upper and lower ends of the end plate 2. The two movable doors 3 are driven by hydraulic cylinders to move closer or further away from each other along the end plate 2. After the opposite ends of the two movable doors 3 move closer to each other, they form a crucible bottom plate 31.

[0041] The two movable doors are controlled by two hydraulic cylinders. The extension and retraction of the two hydraulic cylinders are synchronized to ensure that the two movable doors move at the same frequency.

[0042] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A one-piece molding die for a square graphite crucible, characterized in that, It includes the mold body (1), the end plate (2), and the movable door (3); The mold body (1) has a feed inlet (11) at one end and a discharge outlet at the other end, and a cavity is formed between the feed inlet (11) and the discharge outlet; the end plate (2) is fixed to the end face of the mold body (1) opposite to the discharge outlet; a square material groove (21) is provided on the panel of the end plate (2), and the square material groove (21) is connected to the discharge outlet; the movable door (3) is slidably connected to the end plate (2) to cover the square material groove (21); a base forming cavity is provided between the movable door (3) and the end plate (2).

2. The one-time forming mold for a square graphite crucible according to claim 1, characterized in that, The mold body (1) is rotatably connected to the inner wall of the feed port (11) with a stirring blade (5).

3. The one-time forming mold for a square graphite crucible according to claim 1, characterized in that, A square nozzle core (4) is fixed on the side panel of the end plate (2) away from the mold body (1), and the square material groove (21) is opened in the circumference of the end plate (2) relative to the square nozzle core (4).

4. The one-time forming mold for a square graphite crucible according to claim 3, characterized in that, The outer wall of the movable door (3) away from the end plate (2) is fixed with a crucible bottom plate (31); the crucible bottom plate (31) corresponds to the square material trough (21); the base forming cavity is formed between the crucible bottom plate (31) and the square nozzle core (4).

5. The one-time forming mold for a square graphite crucible according to claim 4, characterized in that, The movable door (3) has two panels. The top and bottom of the two movable doors (3) are provided with slots (32) and are engaged with the upper and lower ends of the end plate (2). The two movable doors (3) are driven by hydraulic cylinders to move closer or further away from each other along the end plate (2). When the opposite ends of the two movable doors (3) move closer to each other, they form the bottom plate (31).

6. The one-time forming mold for a square graphite crucible according to claim 1, characterized in that, The mold body (1) includes a hollow outer shell (12) and a mold core (13), the mold core (13) being coaxially fixed in the inner cavity of the hollow outer shell (12); there is a raw material flow channel (14) between the outer wall of the mold core (13) and the inner wall of the hollow outer shell (12).

7. The one-piece molding die for a square graphite crucible according to claim 6, characterized in that, The inner core (13) of the mold consists of a pointed section, a transition section and a forming section in sequence from the feed port (11) to the discharge port.

8. The one-time forming mold for a square graphite crucible according to claim 6, characterized in that, The hollow shell (12) consists of a large diameter section, an inclined section and a small diameter section in the direction from the feed port (11) to the discharge port. The large diameter section is connected to the discharge port of the extruder through a connector.

Images