Extrusion device for silicon carbide ceramic production

Abstract

The utility model relates to the technical field of extrusion devices, and provides an extrusion device for silicon carbide ceramic production, which comprises a rack, the extrusion assembly is arranged on the rack; the rotating disc is rotationally arranged on the rack and provided with a plurality of clamping grooves, and after the rotating disc rotates, the clamping grooves correspond to the discharging opening of the extrusion assembly; the supporting plate is movably arranged on the rack and enters or is far away from the clamping groove after moving; and the lifting piece is arranged on the rack, and after the lifting piece ascends and descends, the supporting plate located in the clamping groove is driven to slide along the clamping groove. By means of the technical scheme, the problems that in the prior art, when a forming device extrudes raw materials, operation is complex, manual feeding and discharging are needed, efficiency is low, and the formed raw materials are prone to being damaged are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion devices, and specifically to an extrusion device for producing silicon carbide ceramics. Background Art

[0002] Silicon carbide ceramics not only have excellent room temperature mechanical properties, such as high flexural strength, excellent oxidation resistance, good corrosion resistance, high wear resistance and low friction coefficient, but also have the best high temperature mechanical properties among known ceramic materials. The high temperature strength of hot pressed, pressureless sintered and hot isostatic pressed materials can be maintained up to 1600 degrees Celsius, and they have excellent high temperature strength and oxidation resistance.

[0003] In the production process of silicon carbide ceramics, molding and sintering are required. However, the current molding device is complicated to operate when extruding raw materials, and requires manual loading and unloading, which is not only inefficient, but also easily causes damage to the molded raw materials. Utility Model Content

[0004] The utility model provides an extrusion device for producing silicon carbide ceramics, which solves the problem that the molding device in the related art is complicated to operate when extruding raw materials and requires manual loading and unloading, which is not only inefficient but also easily causes damage to the molded raw materials.

[0005] The technical solution of the utility model is as follows:

[0006] An extrusion device for producing silicon carbide ceramics, characterized by comprising:

[0007] frame;

[0008] An extrusion assembly is arranged on the frame;

[0009] A turntable, rotatably disposed on the frame, having a plurality of clamping grooves, wherein after the turntable rotates, the clamping grooves correspond to the discharge port of the extrusion assembly;

[0010] A support plate is movably arranged on the frame and moves into or away from the clamping slot;

[0011] The lifting member is arranged on the frame, and after the lifting member is lifted or lowered, it drives the support plate located in the clamping groove to slide along the clamping groove.

[0012] As a further technical solution, the clamping grooves are provided in a plurality and arranged circumferentially on the rotating disk;

[0013] Also includes:

[0014] The supporting platform is arranged in the clamping groove, and after the supporting plate enters the clamping groove, it overlaps on the supporting platform.

[0015] As a further technical solution, the extrusion assembly includes:

[0016] An extrusion box, arranged on the frame, having a material storage cavity;

[0017] An extrusion piece is slidably arranged on the frame, and after the extrusion piece slides, an extrusion end of the extrusion piece slides along the material storage cavity;

[0018] The mold is arranged on the extrusion box and has a molding cavity, which is connected with the material storage cavity. The mold also has the discharge port, which is connected with the molding cavity. After the turntable rotates, the clamping groove is located below the discharge port.

[0019] As a further technical solution, it also includes:

[0020] A first guide rail, arranged on the frame;

[0021] The extrusion comprises:

[0022] A sliding plate, slidably disposed on the first guide rail;

[0023] A pressing plate is arranged on the sliding plate, and the extrusion end is located on the pressing plate.

[0024] As a further technical solution, it also includes:

[0025] There are two second guide rails, which are arranged on both sides of the frame;

[0026] There are two sliding seats, which are slidably arranged on the two second guide rails correspondingly;

[0027] The cutting wire is wound on the two sliding seats, and the sliding seats are used to cut the shaped raw materials after sliding.

[0028] As a further technical solution, it also includes:

[0029] A plurality of fixing rings are arranged on the sliding seat, and two ends of the cutting wire are arranged on the fixing rings;

[0030] A screw rod is threadedly arranged on the sliding seat and has a wire passing hole. After the two ends of the cutting wire pass through the wire passing holes on both sides respectively, they are arranged on the fixing ring. After the two screw rods rotate, the wire passing holes approach or move away from each other, which is used to tighten or loosen the cutting wire.

[0031] As a further technical solution, the snap-in slot has an opening and further comprises:

[0032] A feeding piece is arranged on the frame and has a feeding channel, and the feeding channel is used to communicate with the opening.

[0033] As a further technical solution, it also includes:

[0034] A first connecting rod, rotatably disposed on the frame;

[0035] The second connecting rod is arranged on the first connecting rod. The first connecting rod and the second connecting rod form a loading space. After the first connecting rod rotates, the loading space drives one of the supporting plates to slide into the opening.

[0036] As a further technical solution, the support plate has a clamping end and further comprises:

[0037] A conveying member, arranged on the frame;

[0038] There are several clamping protrusions which are arranged at intervals on the conveying member. After the turntable rotates, the clamping groove is located above the conveying member. After the conveying member is moved, the clamping protrusion drives the clamping end to slide along the conveying direction of the conveying member.

[0039] As a further technical solution, the mold is clamped on the extrusion box.

[0040] The working principle and beneficial effects of the utility model are:

[0041] In the utility model, in order to solve the problem that the molding device in the related art is complicated to operate when extruding raw materials, and needs to manually load and unload materials, which is not only inefficient, but also easy to cause damage to the formed raw materials, after the raw materials are extruded and formed by the extrusion assembly, the lifting member rises and lifts the formed raw materials to prevent the raw materials from falling directly and causing damage to the formed raw materials. The present invention designs a number of clamping grooves on the turntable. After different pallets move, they enter different clamping grooves. After the turntable rotates, the pallet is driven to rotate to the middle of the extrusion assembly and the lifting member. When the extrusion assembly is extruded, the lifting member rises, driving the pallet to rise, and lifts the raw materials that have been formed at the discharge port of the extrusion assembly. In order to ensure the yield rate of the raw materials, the lifting member rises first. When the raw materials are extruded, when they extend from the discharge port, the pallet just lifts the formed raw materials, and the lifting member begins to descend. The speed at which the lifting member descends is equal to the rate at which the raw materials are extruded and formed. In this way, it can prevent the formed raw materials from hitting the pallet, causing damage to the bottom of the raw materials, or deformation of the formed raw materials caused by the pallet descending too fast. The lifting member keeps descending at the original speed until the support plate is clamped in the clamping groove again, and the turntable rotates to rotate the formed raw material and the support plate out from between the lifting member and the extrusion assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0043] Figure 1 It is a schematic diagram of the structure of the utility model;

[0044] Figure 2 for Figure 1 A magnified schematic diagram of point A;

[0045] Figure 3 for Figure 1 An enlarged schematic diagram of point B;

[0046] In the figure: 1. frame, 2. turntable, 2-1. snap-fit ​​groove, 3. support plate, 4. lifting member, 5. supporting platform, 6. extrusion box, 7. extrusion member, 8. mold, 9. first guide rail, 10. sliding plate, 11. pressure plate, 12. second guide rail, 13. sliding seat, 14. cutting wire, 15. fixing ring, 16. screw, 16-1. wire hole, 2-2. opening, 17. feeding member, 18. first connecting rod, 19. second connecting rod, 19-1. feeding space, 3-1. snap-fit ​​end, 20. conveying member, 21. snap-fit ​​protrusion, 22. extrusion assembly, 22-1. discharge port. DETAILED DESCRIPTION

[0047] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0048] like Figure 1~Figure 3 As shown, this embodiment proposes

[0049] An extrusion device for producing silicon carbide ceramics, characterized by comprising:

[0050] Rack 1;

[0051] An extrusion assembly 22 is arranged on the frame 1;

[0052] The turntable 2 is rotatably arranged on the frame 1 and has a clamping groove 2-1. After the turntable 2 rotates, the clamping groove 2-1 corresponds to the discharge port 22-1 of the extrusion assembly 22;

[0053] The support plate 3 is movably arranged on the frame 1 and moves into or away from the clamping slot 2-1;

[0054] The lifting member 4 is arranged on the frame 1. After the lifting member 4 is lifted or lowered, it drives the support plate 3 located in the clamping groove 2-1 to slide along the clamping groove 2-1.

[0055] In this embodiment, in order to solve the problem that the molding device in the related art is complicated to operate when extruding raw materials, and requires manual loading and unloading, which is not only inefficient but also easily causes damage to the molded raw materials, this solution uses the extrusion component 22 to extrude the raw materials, and then the lifting member 4 rises to lift the molded raw materials to prevent the raw materials from falling directly and causing damage to the molded raw materials. This solution designs a clamping groove 2-1 on the turntable 2. After the support plate 3 moves, it enters the clamping groove 2-1. After the turntable 2 rotates, it drives the support plate 3 to rotate to the middle of the extrusion component 22 and the lifting member 4. When the extrusion component 22 is extruding, the lifting member 4 rises, driving the support plate 3 to rise, to lift the raw materials that have been formed at the discharge port 22-1 of the extrusion component 22. In order to ensure the yield of the raw materials, the lifting member 4 rises first. During the extrusion process, when the raw materials extend out from the discharge port 22-1, the support plate 3 just lifts the formed raw materials, and the lifting member 4 begins to descend. The descending speed of the lifting member 4 is equal to the rate at which the raw materials are extruded. This can prevent the formed raw material from hitting the support plate 3, causing damage to the bottom of the raw material, or deformation of the formed raw material due to the support plate 3 descending too quickly. The lifting member 4 continues to descend at the original speed until the support plate 3 is clamped in the clamping groove 2-1 again, and the turntable 2 rotates to rotate the formed raw material and the support plate 3 out of the middle of the lifting member 4 and the extrusion assembly 22.

[0056] Furthermore, there are a plurality of snap-in grooves 2-1, which are arranged circumferentially on the turntable 2;

[0057] Also includes:

[0058] The supporting platform 5 is arranged in the clamping groove 2 - 1 . After the supporting plate 3 enters the clamping groove 2 - 1 , it overlaps on the supporting platform 5 .

[0059] In this embodiment, this scheme designs several clamping grooves 2-1 on the turntable 2. When the extrusion device is continuously operated, different pallets 3 are moved into different clamping grooves 2-1 in sequence to continuously and sequentially lift the formed raw materials. In order to prevent the pallet 3 from being misplaced during the rotation of the turntable 2, resulting in lifting failure, this scheme designs a support platform 5 on the clamping groove 2-1. After the pallet 3 enters the clamping groove 2-1, it overlaps on the support platform 5. The upper end surface of the pallet 3 can be located in the same horizontal plane as the upper end surface of the turntable 2 or not. When the pallet 3 is overlapped on the support platform 5, no matter how the turntable 2 rotates, the pallet 3 will not be misplaced. The accuracy of lifting is guaranteed.

[0060] Further, the extrusion assembly 22 includes:

[0061] The extrusion box 6 is arranged on the frame 1 and has a material storage cavity;

[0062] The extrusion member 7 is slidably arranged on the frame 1. After the extrusion member 7 slides, the extrusion end of the extrusion member 7 slides along the material storage cavity;

[0063] The mold 8 is arranged on the extrusion box 6, and has a molding cavity, which is connected with the material storage cavity. The mold 8 also has a discharge port 22-1, which is connected with the molding cavity. After the turntable 2 rotates, the clamping groove 2-1 is located below the discharge port 22-1.

[0064] In this embodiment, in order to realize the extrusion of raw materials, this scheme is to fix the extrusion box 6 on the frame 1, and the unformed raw material is stored in the material storage cavity. The extrusion member 7 slides up and down along the frame 1. After sliding, the extrusion end squeezes the raw material in the material storage cavity, so that the raw material is formed after passing through the molding cavity of the mold 8. During the continuous molding process of the raw material, the support plate 3 supports the molded raw material.

[0065] Furthermore, it also includes:

[0066] A first guide rail 9 is arranged on the frame 1;

[0067] The extrusion member 7 comprises:

[0068] A sliding plate 10 is slidably disposed on the first guide rail 9;

[0069] The pressing plate 11 is arranged on the sliding plate 10 , and the extrusion end is located on the pressing plate 11 .

[0070] In this embodiment, in order to achieve precise extrusion of the extrusion piece 7, this solution prevents the sliding plate 10 from being misplaced by sliding the sliding plate 10 along the first guide rail 9, and the pressing plate 11 cannot extrude the raw materials in the material storage cavity. After the sliding plate 10 slides, it drives the pressing plate 11 to slide. After the pressing plate 11 slides downward with the sliding plate 10, the action of extruding the raw materials can be achieved. After the pressing plate 11 rises with the sliding plate 10, the user can replenish the raw materials in the material storage cavity. This solution can be, but is not limited to, driving the sliding plate 10 to slide after the cylinder is extended and retracted.

[0071] Furthermore, it also includes:

[0072] There are two second guide rails 12, which are arranged on both sides of the frame 1;

[0073] There are two sliding seats 13, which are slidably arranged on the two second guide rails 12;

[0074] The cutting wire 14 is wound on two sliding seats 13, and the sliding seats 13 slide to cut the shaped raw materials.

[0075] In this embodiment, since the device can realize continuous extrusion of raw materials, in order to divide the continuously formed raw materials into individual independent formed raw materials, this solution is designed to be located below the discharge port 22-1 by the cutting wire 14. The cutting wire 14 slides back and forth on the second guide rail 12. When it slides through the formed raw materials, the raw materials are cut. This solution can realize precise cutting of the formed raw materials by controlling the sliding speed of the slide, and can also make the sliding seat 13 slide back and forth at intervals.

[0076] Furthermore, it also includes:

[0077] A plurality of fixing rings 15 are provided on the sliding seat 13 , and both ends of the cutting wire 14 are provided on the fixing rings 15 ;

[0078] The screw rod 16 is threadedly arranged on the sliding seat 13 and has a wire passing hole 16-1. After the two ends of the cutting wire 14 pass through the wire passing holes 16-1 on both sides respectively, they are arranged on the fixing ring 15. After the two screw rods 16 rotate, the wire passing holes 16-1 move closer to or farther away from each other, which is used to tighten or loosen the cutting wire 14.

[0079] In this embodiment, after the cutting wire 14 has been used for a period of time, it will be deformed, and the cutting wire 14 between the two sliding seats 13 will become loose, resulting in cutting errors. In order to extend the service life of the cutting wire 14, this solution designs a fixing ring 15 on the sliding seat 13, and the two ends of the cutting wire 14 are respectively tied to the two fixing rings 15, and the cutting wire 14 is respectively wound in the wire holes 16-1 of the screw rod 16. When the cutting wire 14 becomes loose, the tightness of the cutting wire 14 can be adjusted by twisting the screw rod 16, thereby reducing the frequency of replacing the cutting wire 14 and reducing costs.

[0080] Furthermore, the card slot 2-1 has an opening 2-2, and further includes:

[0081] The feeding member 17 is arranged on the frame 1 and has a feeding channel, and the feeding channel is used to communicate with the opening 2-2.

[0082] In this embodiment, in order to realize automatic loading of the pallet 3, the present solution is to design an opening 2-2 in the clamping groove 2-1, and a plurality of pallets 3 are sequentially arranged in the loading channel, and the loading channel is arranged obliquely, and the pallet 3 can slide along the loading channel by its own gravity and slide into the clamping groove 2-1. The present structure is simple and realizes uninterrupted supply of the pallet 3.

[0083] Furthermore, it also includes:

[0084] A first connecting rod 18 is rotatably mounted on the frame 1;

[0085] The second connecting rod 19 is arranged on the first connecting rod 18. The first connecting rod 18 and the second connecting rod 19 form a loading space 19-1. After the first connecting rod 18 rotates, the loading space 19-1 drives a supporting plate 3 to slide into the opening 2-2.

[0086] In this embodiment, when the previous pallet 3 is stuck in the clamping groove 2-1, the next pallet 3 may follow closely and be clamped in the same clamping groove 2-1 as the previous pallet 3. In order to prevent this situation from happening, this scheme designs a first connecting rod 18 and a second connecting rod 19 that are staggered and fixed on the frame 1. The first connecting rod 18 and the second connecting rod 19 rotate on the frame 1 at the same time, and after rotation, the pallet 3 clamped in the loading space 19-1 is pushed into the clamping groove 2-1, and at the same time, the next pallet 3 is blocked from sliding down to avoid interference with the previous pallet 3.

[0087] Further, the support plate 3 has a clamping end 3-1, and further comprises:

[0088] The conveying member 20 is arranged on the frame 1;

[0089] There are several clamping protrusions 21, which are arranged at intervals on the conveying member 20. After the turntable 2 rotates, the clamping groove 2-1 is located above the conveying member 20. After the conveying member 20 moves, the clamping protrusion 21 drives the clamping end 3-1 to slide along the conveying direction of the conveying member 20.

[0090] In this embodiment, in order to realize automatic unloading after the pallet 3 lifts the formed raw materials, this solution is designed with a clamping end 3-1 at the bottom of the pallet 3. When the turntable 2 rotates, the pallet 3 lifting the formed raw materials is transported to the top of the conveying member 20, and the clamping protrusion 21 on the conveying member 20 moves the clamping end 3-1 along the conveying direction of the conveying member 20. At the same time, the clamping end 3-1 of the pallet 3 contacts the conveying member 20, and the conveying member 20 lifts the pallet 3 to prevent the pallet 3 from slipping. This structure realizes automatic unloading. The pallet 3 that has been unloaded slides out of the clamping groove 2-1. After the turntable 2 continues to rotate, the clamping groove 2-1 can receive a new pallet 3 when it passes through the loading channel.

[0091] Furthermore, the die 8 is clamped and arranged on the extrusion box 6 .

[0092] In this embodiment, in order to facilitate the extrusion of different molding structures, the present solution designs the mold 8 as a structure that is clamped on the extrusion box 6. The present solution may be to open slide grooves on both sides of the extrusion box 6, design protrusions on the mold 8, and the protrusions slide along the slide grooves. After sliding to a suitable position, the mold 8 is installed. Since the sliding direction of the protrusions is perpendicular to the extrusion direction, there is no need to worry about the mold 8 falling off. Since the slide grooves are on the sides of the extrusion box 6, leakage is also prevented.

[0093] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An extrusion device for producing silicon carbide ceramics, characterized in that: include: Rack(1); An extrusion assembly (22) is arranged on the frame (1); a turntable (2) rotatably disposed on the frame (1) and having a plurality of clamping grooves (2-1); after the turntable (2) rotates, the clamping grooves (2-1) correspond to the discharge port (22-1) of the extrusion assembly (22); A support plate (3) is movably arranged on the frame (1) and moves into or away from the clamping slot (2-1); A lifting member (4) is arranged on the frame (1); after the lifting member (4) is lifted or lowered, it drives the support plate (3) located in the clamping groove (2-1) to slide along the clamping groove (2-1).

2. The extrusion device for producing silicon carbide ceramics according to claim 1, characterized in that: There are a plurality of the clamping grooves (2-1), which are arranged along the circumference on the rotating disk (2); Also includes: The supporting platform (5) is arranged in the clamping groove (2-1), and after the supporting plate (3) enters the clamping groove (2-1), it overlaps on the supporting platform (5).

3. The extrusion device for producing silicon carbide ceramics according to claim 1, characterized in that: The extrusion assembly (22) comprises: An extrusion box (6) is arranged on the frame (1) and has a material storage cavity; An extrusion member (7) is slidably disposed on the frame (1), and after the extrusion member (7) slides, an extrusion end of the extrusion member (7) slides along the material storage cavity; The mold (8) is arranged on the extrusion box (6) and has a molding cavity, the molding cavity is connected to the material storage cavity, the mold (8) also has the discharge port (22-1), the discharge port (22-1) is connected to the molding cavity, and after the rotating disk (2) rotates, the clamping groove (2-1) is located below the discharge port (22-1).

4. The extrusion device for producing silicon carbide ceramics according to claim 3, characterized in that: Also includes: A first guide rail (9) is arranged on the frame (1); The extruded part (7) comprises: A sliding plate (10) slidably disposed on the first guide rail (9); A pressing plate (11) is arranged on the sliding plate (10), and the extrusion end is located on the pressing plate (11).

5. The extrusion device for producing silicon carbide ceramics according to claim 3, characterized in that: Also includes: Two second guide rails (12) are provided on both sides of the frame (1); There are two sliding seats (13), which are slidably arranged on the two second guide rails (12) correspondingly; The cutting wire (14) is wound around the two sliding seats (13), and the sliding seats (13) are used to cut the shaped raw materials after sliding.

6. The extrusion device for producing silicon carbide ceramics according to claim 5, characterized in that: Also includes: A plurality of fixing rings (15) are arranged on the sliding seat (13), and two ends of the cutting wire (14) are arranged on the fixing rings (15); A screw rod (16) is threadedly arranged on the sliding seat (13) and has a wire passing hole (16-1). After the two ends of the cutting wire (14) pass through the wire passing holes (16-1) on both sides respectively, they are arranged on the fixing ring (15). After the two screw rods (16) rotate, the wire passing holes (16-1) move closer to or farther from each other, so as to tighten or loosen the cutting wire (14).

7. The extrusion device for producing silicon carbide ceramics according to claim 1, characterized in that: The clamping slot (2-1) has an opening (2-2) and further comprises: A loading piece (17) is arranged on the frame (1) and has a loading channel, wherein the loading channel is used to communicate with the opening (2-2).

8. An extrusion device for producing silicon carbide ceramics according to claim 7, characterized in that: Also includes: A first connecting rod (18) rotatably disposed on the frame (1); The second connecting rod (19) is arranged on the first connecting rod (18), and the first connecting rod (18) and the second connecting rod (19) form a loading space (19-1). After the first connecting rod (18) rotates, the loading space (19-1) drives one of the supporting plates (3) to slide into the opening (2-2).

9. The extrusion device for producing silicon carbide ceramics according to claim 1, characterized in that: The support plate (3) has a clamping end (3-1) and further comprises: A conveying member (20) is arranged on the frame (1); There are a plurality of clamping protrusions (21) which are arranged at intervals on the conveying member (20); after the turntable (2) rotates, the clamping groove (2-1) is located above the conveying member (20); after the conveying member (20) is transferred, the clamping protrusion (21) drives the clamping end (3-1) to slide along the conveying direction of the conveying member (20).

10. The extrusion device for producing silicon carbide ceramics according to claim 3, characterized in that: The mold (8) is clamped and arranged on the extrusion box (6).

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