Demoulding device for silicon carbide product
By designing a mold release device including base, cylinder, positioning column and positioning assembly, the problem of the pin rod abutment damage to the shape during the demolding process of silicon carbide products is solved, and stable mold release and modeling integrity of different molded products are achieved.
Patent Information
- Application Number
- CN202421337515.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-12
AI Technical Summary
During the release process of silicon carbide products, the top rod is easily abutting at the sharp corners of the product, resulting in damage to the external shape.
A mold release device including a base, a cylinder, a positioning column and a positioning assembly is designed. The base is driven upward by the cylinder, and the positioning column penetrates the base mold to eject the product; the design of the positioning assembly and through-hole allows the positioning column to slide at different heights to adapt to different shapes of products.
The stable release of silicon carbide products in various shapes and sizes is achieved, avoiding direct contact and damage to the surface of the product by the pin bar, and ensuring the integrity of the external shape of the product.
Smart Images
Figure CN222662149U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of demoulding devices, and in particular to a demoulding device for silicon carbide products. Background Art
[0002] At present, silicon carbide has many excellent properties, such as high hardness, second only to diamond; high thermal conductivity, high temperature resistance, good oxidation resistance; strong wear resistance, etc.
[0003] The molding methods of silicon carbide products include grouting molding, compression molding, extrusion molding and gel injection molding. After molding, silicon carbide products need to be demolded. The demolding methods include using a release agent, manual demolding and mechanical demolding, etc. For extruded silicon carbide products, mechanical demolding is used for demolding. The specific operation is: an ejection mechanism such as an ejector pin is set in the mold. After the product is formed, the product is slowly ejected from the mold cavity by the ejector pin.
[0004] In actual production, the shapes of silicon carbide products are various, and the position where the ejector pin ejects the silicon carbide product often abuts against the sharp corners of the silicon carbide product, which has the defect of destroying the external shape of the silicon carbide. Utility Model Content
[0005] In order to be applicable to the demoulding of silicon carbide products of various shapes and sizes, the present application provides a demoulding device for silicon carbide products.
[0006] The demoulding device for silicon carbide products provided in the present application adopts the following technical solution:
[0007] A demoulding device for silicon carbide products comprises a base arranged below a stamping bottom die of the silicon carbide products, the base being provided with a cylinder for pushing the base towards or away from the stamping bottom die of the silicon carbide products, a plurality of positioning columns being slidably arranged on the base, adjacent positioning columns being arranged at intervals, one end of the positioning column passing through the base, and the other end of the positioning column being used to pass through the stamping bottom die of the silicon carbide products, the positioning column sliding in a direction towards or away from the stamping bottom die of the silicon carbide products, and a positioning adjustment component being provided on the positioning column for being connected with the base for positioning.
[0008] By adopting the above technical solution, when the silicon carbide product is stamped through the mold, the cylinder is started, and the cylinder drives the base to move upward. At this time, the positioning column moves toward the direction close to the silicon carbide product stamping bottom mold until it penetrates the bottom mold. The positioning column pushes the stamped silicon carbide product out of the bottom mold, thereby completing the demolding. When the shape of the silicon carbide product is different, the position of the positioning column relative to the base is adjusted by the adjustment component, so that the heights of the ends of adjacent positioning columns are different, thereby meeting the different concave and convex surfaces of the silicon carbide product.
[0009] Optionally, the base is provided with a through hole and an annular groove, the annular groove is located on the inner wall of the through hole, the number of through holes corresponds to the number of positioning columns, the number of annular grooves in a single through hole is not less than two, and adjacent annular grooves are provided at intervals; the interior of the positioning column is hollow; the positioning adjustment component includes a push piece, a clamping block, a pull rope and a spring, the clamping block is arranged perpendicular to the positioning column and one end of the clamping block is inserted into the interior of the positioning column, the pull rope and the spring are both located inside the positioning column, one end of the pull rope is fixedly connected to the clamping block, and the other end is fixedly connected to the inner wall of the positioning column, the spring is fixed between the clamping block and the inner wall of the positioning column for pushing the clamping block toward the outside of the positioning column, the push piece is slidably arranged inside the positioning column, the push piece slides along the length direction of the positioning column and slides in the direction close to or away from the pull rope; the end of the clamping block facing away from the spring is used to be inserted into the annular groove.
[0010] By adopting the above technical solution, the push piece is pushed toward the inside of the positioning column, and the push piece drives the pull rope to move, thereby pulling the card block to move closer to the inside of the positioning column. The position of the positioning column is adjusted so that the card block is facing the corresponding annular groove, and the thrust applied to the push piece is released. At this time, the spring pushes the card block to be inserted into the corresponding annular groove, thereby finally achieving the limit fixation of the positioning column.
[0011] Optionally, the through hole is in the shape of an elongated strip.
[0012] By adopting the above technical solution, the long strip-shaped through hole expands the range of position adjustment of the positioning column relative to the base, and is not limited to position adjustment in one direction.
[0013] Optionally, a ring seat is provided on the outer wall of the base, the ring seat is sleeved on the circumferential outer wall of the base, the base is rotatably connected to the ring seat, and the base rotates relative to the ring seat; the piston end of the cylinder is fixedly connected to the ring seat.
[0014] By adopting the above technical scheme, the positions of the holes for the ends of the positioning columns to pass through are different in the stamping bottom dies of silicon carbide products of different shapes. The base is rotated on the ring seat so that more ends of the positioning columns can face the holes for the ends of the positioning columns to pass through opened in the stamping bottom dies of the silicon carbide products.
[0015] Optionally, a eaves board is fixed on the base, and the eaves board is arranged along the top edge of the base in the length direction. A plurality of positioning holes are opened on the ring seat, and adjacent positioning holes are arranged at intervals. Positioning pins are arranged on the eaves board, and the positioning pins pass through the eaves board and are inserted and connected with corresponding positioning holes.
[0016] By adopting the above technical solution, the positioning pin passes through the eaves board and is inserted and fixed into the corresponding positioning hole, thereby locking the position between the ring seat and the base, and the operation is simple and convenient.
[0017] Optionally, the base is provided with a plurality of jacks, all of which are located in the annular groove, adjacent jacks are arranged at intervals, and the ends of the card blocks are plug-fitted and connected with the jacks.
[0018] By adopting the above technical solution and providing a plurality of jacks, the card block can be more stably embedded in the base, and the position of the positioning column can also be easily adjusted.
[0019] Optionally, a push plate is ball-hinged on the end surface of the positioning column away from the base, and a rubber pad is fixed on the side wall of the push plate away from the positioning column.
[0020] By adopting the above technical solution, the arrangement of the ball-hinged push plate and the rubber pad, the end face of the positioning column is in soft contact with the surface of the silicon carbide product when it abuts against the surface of the silicon carbide product, and it fits the surface of the silicon carbide product more closely.
[0021] Optionally, the spring ring is sleeved on the outside of the pull rope, and the pull rope passes through the push piece.
[0022] By adopting the above technical solution, the pull rope plays a limiting role for both the spring and the push piece, ensuring the compression direction of the spring and providing an installation position for the push piece.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. The setting of the position adjustment component can adjust the position of the positioning column relative to the base, and at the same time, in conjunction with the shape of the through hole, the adjustment range of the position of the positioning column relative to the base is expanded;
[0025] 2. The positions of the holes for the ends of the positioning columns to pass through are different in the stamping bottom dies of silicon carbide products of different shapes. The base is rotated on the ring seat so that more ends of the positioning columns can face the holes for the ends of the positioning columns to pass through the stamping bottom dies of silicon carbide products;
[0026] 3. The setting of the ball-hinged push plate and rubber pad makes the end face of the positioning column softly contact with the surface of the silicon carbide product and fits the surface of the silicon carbide product more closely. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the position state when the embodiment of the present application is used;
[0028] Figure 2 is a top view of an embodiment of the present application;
[0029] Figure 3 is a bottom view of an embodiment of the present application;
[0030] Figure 4 It is a cross-sectional view of the local structure at the positioning column.
[0031] In the figure, 1. base; 11. cylinder; 12. through hole; 13. ring groove; 14. plug hole; 15. eaves plate; 2. positioning column; 3. adjustment assembly; 31. push piece; 32. clamping block; 33. pull rope; 34. spring; 4. ring seat; 41. connecting plate; 42. positioning hole; 5. positioning pin; 6. push plate; 61. rubber pad; 7. stamping bottom die of silicon carbide products. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-Figure 4 This application is described in further detail.
[0033] The embodiment of the present application discloses a demoulding device for silicon carbide products.
[0034] refer to Figure 1 and Figure 2 A demoulding device for silicon carbide products comprises a base 1, a ring seat 4, a cylinder 11 and a positioning column 2. A connecting plate 41 is arranged between the cylinder 11 and the ring seat 4. One end of the connecting plate 41 is fixedly connected to the piston end of the cylinder 11, and the other end is fixedly connected to the ring seat 4. The ring seat 4 is sleeved on the circumferential outer wall of the base 1. The base 1 is rotatably connected to the ring seat 4, that is, the base 1 rotates relative to the ring seat 4. The positioning column 2 is slidably arranged on the base 1, and the base 1 is located directly below the bottom die 7 for stamping silicon carbide products.
[0035] refer to Figure 2 A cornice 15 is fixed on the base 1, and the length direction of the cornice 15 is arranged along the top edge of the base 1. A plurality of positioning holes 42 are opened on the ring seat 4, and adjacent positioning holes 42 are arranged at intervals. A positioning pin 5 is arranged on the cornice 15, and the positioning pin 5 penetrates the cornice 15 and is inserted and connected with the corresponding positioning hole 42. The connecting line of all the positioning holes 42 is circular and the center of the circle coincides with the center of the circle of the ring seat 4.
[0036] refer to Figure 1 , Figure 3 and Figure 4 A positioning assembly 3 is provided between the positioning column 2 and the base 1, and the positioning assembly 3 is used for fixing the positioning column 2 after the position is adjusted relative to the base 1. That is, after the positioning column 2 is adjusted to be directly below the hole opened in the silicon carbide product stamping bottom die 7, the position of the positioning column 2 is locked by the positioning assembly 3.
[0037] refer to Figure 2 and Figure 3 The base 1 is provided with a plurality of through holes 12, and in the embodiment of the present application, there are four through holes 12. The through hole 12 is in the shape of a long strip. The base 1 is provided with an annular groove 13 and a plug hole 14, and a plurality of annular grooves 13 and a plug hole 14 are provided. The number of annular grooves 13 provided in a single through hole 12 is not less than two, and the annular groove 13 is provided on the inner wall of the through hole 12 in a circle, and adjacent annular grooves 13 are provided at intervals. Adjacent plug holes 14 in a single annular groove 13 are provided at intervals.
[0038] refer to Figure 3 and Figure 4 The positioning assembly 3 includes a push piece 31, a block 32, a pull rope 33 and a spring 34. The interior of the positioning column 2 is hollow. The pull rope 33 and the spring 34 are both located inside the positioning column 2. The block 32 is arranged vertically to the positioning column 2 and one end thereof penetrates into the interior of the positioning column 2. One end of the pull rope 33 is fixedly connected to the block 32, and the other end is fixedly connected to the inner wall of the positioning column 2. The spring 34 is replaced on the pull rope 33, one end of the spring 34 is fixed to the end of the block 32, and the other end of the spring 34 abuts against the push piece 31. The push piece 31 is slidably arranged inside the positioning column 2, and the push piece 31 slides along the length direction of the positioning column 2 and slides in the direction close to or away from the pull rope 33. The pull rope 33 passes through one end of the push piece 31, and the end of the block 32 away from the spring 34 is plugged and connected with the corresponding socket 14.
[0039] refer to Figure 4 A push plate 6 is ball-hinged on the end surface of the positioning column 2 away from the base 1 , and a rubber pad 61 is fixed on the side wall of the push plate 6 away from the positioning column 2 .
[0040] The implementation principle of a demolding device for silicon carbide products in an embodiment of the present application is as follows: start the cylinder 11 so that the rubber pad 61 is located at the hole opened by the silicon carbide product stamping bottom die 7 itself, thereby filling the defect of the hole and starting to stamp the silicon carbide product. When the silicon carbide product is stamped through the mold, start the cylinder 11, and the cylinder 11 drives the base 1 to move upward. At this time, the positioning column 2 moves toward the direction close to the silicon carbide product stamping bottom die 7 until it penetrates the bottom die. The positioning column 2 pushes the stamped silicon carbide product out of the bottom die, thereby completing the demolding. When the shape of the silicon carbide product is different, the position of the positioning column 2 relative to the base 1 is adjusted by the adjustment component 3, so that the heights of the ends of adjacent positioning columns 2 are different, thereby meeting the different concave and convex surfaces of the silicon carbide product.
[0041] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A demoulding device for a silicon carbide product, comprising a base (1) arranged below a stamping bottom die (7) for a silicon carbide product, characterized in that: The base (1) is provided with a cylinder (11) for pushing the base (1) toward or away from the silicon carbide product stamping bottom die (7), and a plurality of positioning columns (2) are slidably provided on the base (1), and adjacent positioning columns (2) are arranged at intervals, one end of the positioning column (2) penetrates the base (1), and the other end of the positioning column (2) is used to penetrate the silicon carbide product stamping bottom die (7), the positioning column (2) slides in a direction approaching or away from the silicon carbide product stamping bottom die (7), and the positioning column (2) is provided with a positioning component (3) for positioning connection with the base (1).
2. A demoulding device for silicon carbide products according to claim 1, characterized in that: The base (1) is provided with a through hole (12) and an annular groove (13), the annular groove (13) being located on the inner wall of the through hole (12), the number of the through holes (12) corresponding to the number of the positioning posts (2), the number of the annular grooves (13) in a single through hole (12) being not less than two, and adjacent annular grooves (13) being provided at intervals; the interior of the positioning post (2) is hollow; the positioning adjustment component (3) comprises a push piece (31), a clamping block (32), a pull rope (33) and a spring (34), the clamping block (32) being arranged vertically to the positioning post (2) and one end of which penetrates into the interior of the positioning post (2), the pull rope (33) and The springs (34) are all located inside the positioning column (2); one end of the pull rope (33) is fixedly connected to the block (32) and the other end is fixedly connected to the inner wall of the positioning column (2); the spring (34) is fixed between the block (32) and the inner wall of the positioning column (2) and is used to push the block (32) toward the outside of the positioning column (2); the push piece (31) is slidably arranged inside the positioning column (2); the push piece (31) slides along the length direction of the positioning column (2) and slides in a direction close to or away from the pull rope (33); the end of the block (32) away from the spring (34) is used to be inserted into the annular groove (13).
3. A demoulding device for silicon carbide products according to claim 2, characterized in that: The through hole (12) is in the shape of an elongated strip.
4. A demoulding device for silicon carbide products according to claim 1, characterized in that: A ring seat (4) is arranged on the outer wall of the base (1), the ring seat (4) is sleeved on the circumferential outer wall of the base (1), the base (1) is rotatably connected to the ring seat (4), and the base (1) rotates relative to the ring seat (4); the piston end of the cylinder (11) is fixedly connected to the ring seat (4).
5. A demoulding device for silicon carbide products according to claim 4, characterized in that: A cornice (15) is fixed on the base (1), and the cornice (15) is arranged along the top edge of the base (1) in the length direction. A plurality of positioning holes (42) are provided on the ring seat (4), and adjacent positioning holes (42) are arranged at intervals. A positioning pin (5) is provided on the cornice (15), and the positioning pin (5) passes through the cornice (15) and is inserted and connected with the corresponding positioning hole (42).
6. A demoulding device for silicon carbide products according to claim 3, characterized in that: The base (1) is provided with a plurality of insertion holes (14), the insertion holes (14) are all located in the annular groove (13), adjacent insertion holes (14) are arranged at intervals, and the ends of the clamping blocks (32) are plug-fitted and connected to the insertion holes (14).
7. A demoulding device for silicon carbide products according to claim 1, characterized in that: A push plate (6) is ball-hinged on the end surface of the positioning column (2) away from the base (1), and a rubber pad (61) is fixed on the side wall of the push plate (6) away from the positioning column (2).
8. A demoulding device for silicon carbide products according to claim 2, characterized in that: The spring (34) is looped around the outside of the pull rope (33), and the pull rope (33) is arranged to pass through the push piece (31).