Graphite crucible mold press head demolding agent smearing device

Abstract

The utility model discloses a graphite crucible mould pressure head release agent smearing device, this device contains main and deputy pressure plate, main and deputy hydraulic cylinder, main and deputy hydraulic pole, press down the column, solid pressure head, hollow pressure head etc. When working, the water pump in release solvent box will release agent through hose delivery to the jacket of press down the column outer ring, again through the even distribution of release pipe full press down the column and solid pressure head surface. Main and deputy hydraulic cylinder drive main and deputy pressure plate respectively, and main pressure plate drives press down the column and solid pressure head, and deputy pressure plate drives hollow pressure head, and hollow pressure head is contacted with mould inner wall, and solid pressure head carries out forming operation. After forming, because the release agent of pressure head and mould inner wall, can smoothly release. The device makes release agent smearing even, has promoted the release effect and production efficiency, is helpful to reduce production cost, improves product quality.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for pressing graphite crucibles, specifically to a device for applying release agent to the mold pressing head of a graphite crucible. Background Technology

[0002] In the production and manufacturing process of graphite crucibles, mold forming is a key step, and the demolding operation between the pressure head and the product inside the mold, as well as the effective application of the release agent, directly affect production efficiency and product quality.

[0003] Traditional methods for demolding graphite crucible molds rely heavily on manual application of release agent. Operators must use brushes and other tools to apply the release agent to the surface of the mold head and the inner wall of the mold. This method is not only inefficient, but manual operation also makes it difficult to ensure the uniformity of the release agent application, easily resulting in areas where the agent is applied too thickly or too thinly. Uneven application can cause the product to stick to the mold head or inner wall during demolding, causing surface damage, reducing product yield, and increasing production costs.

[0004] Furthermore, manually applying release agent poses hygiene risks, as operator hand contact may contaminate the release agent, thereby affecting product purity. Moreover, in large-scale production scenarios, manual application cannot meet the demands of continuous and efficient production, becoming a bottleneck restricting production efficiency improvements. Therefore, developing a graphite crucible mold press head release device that can automatically and uniformly apply release agent is of significant practical importance. Utility Model Content

[0005] The purpose of this utility model is to provide a technical solution for a release agent application device for a graphite crucible mold press head, thereby addressing the shortcomings mentioned in the background art. To overcome the drawbacks and defects described in the background art, this technical solution includes the following: It includes two support frames arranged on the left and right. A hydraulic cylinder housing is fixed to the top of the support frames. A main hydraulic cylinder is fixed in the center of the inner cavity of the hydraulic cylinder housing. Four auxiliary hydraulic cylinders are fixed at the four corners of the inner cavity of the hydraulic cylinder housing. The hydraulic extension end of the main hydraulic cylinder is connected to a main hydraulic rod, and the hydraulic extension end of the auxiliary hydraulic cylinder is connected to an auxiliary hydraulic rod. The bottom end of the main hydraulic rod is fixed with a main pressure plate that is penetrated by the auxiliary hydraulic rod. A lower pressure column is fixed on the bottom surface of the main pressure plate. A solid pressure head is fixed at the bottom end of the lower pressure column. An auxiliary pressure plate that is penetrated by the solid pressure head and the lower pressure column is fixed on the outer ring of the auxiliary hydraulic rod. A hollow pressure head is provided below the auxiliary pressure plate. The support frame on the right has a demolding solvent tank fixed inside. A jacket is fixed to the top of the outer surface of the lower pressure column. A water pump is fixed to the left side wall of the demolding solvent tank. The discharge end of the water pump is connected to a hose that penetrates into the inner cavity of the jacket. Multiple release tubes are fixed through the bottom surface of the jacket. 20-40 spiral grooves are arranged in a ring array on the outer surface of the lower pressure column.

[0006] As a preferred embodiment of this utility model: a sliding bushing adapted to slide with the auxiliary hydraulic rod is embedded in each of the four corners of the main pressure plate.

[0007] As a preferred embodiment of this utility model: a circular hole is provided in the center of the inner part of the auxiliary pressure plate for the lower pressure column and the solid pressure head to pass through downward, and the diameter of the circular hole is larger than the outer diameter of the lower pressure column and the solid pressure head.

[0008] As a preferred embodiment of this utility model: the upper and lower ports of the hollow pressure head are interconnected, and the hollow pressure head is pressed down and inserted into the interior of the crucible mold, with the outer ring surface of the hollow pressure head in contact with the inner cavity sidewall of the crucible mold.

[0009] As a preferred embodiment of this utility model: the length of the solid pressure head is equal to the opening depth of the crucible mold, and the outer diameter of the solid pressure head is consistent with that of the lower pressure column.

[0010] As a preferred embodiment of this utility model: the interior of the jacket is hollow, and a plurality of through holes arranged in a ring array are formed on the bottom surface of the jacket. The bottom port of the through holes is connected to the top port of the liquid release tube, and the bottom port of the liquid release tube is connected to the top port of the spiral groove.

[0011] As a preferred embodiment of this utility model: the water pump's suction port, away from the hose, is connected to a suction pipe that penetrates into the inner cavity of the demolding solvent tank. The demolding solvent tank is transparent and a liquid level sensor is installed inside the demolding solvent tank.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This graphite crucible mold press head release agent application device features a jacket around the lower press column, connected to a release agent tank. The release agent is delivered via a hose to the jacket and then flows through a through-hole into a release pipe, ensuring even distribution across the lower press column and solid press head surface. This results in more uniform release agent application, improved release effect, and reduced product defects caused by uneven release agent application. Main and auxiliary hydraulic cylinders drive the main and auxiliary pressure plates respectively. The main pressure plate drives the lower press column and solid press head, while the auxiliary pressure plate drives the hollow press head. The hollow press head contacts the inner wall of the mold cavity, while the solid press head performs the molding operation. After molding, both are lifted. Because both the press head and the mold inner wall are coated with release agent, they easily separate from the product, improving production efficiency. Furthermore, the device has a simple structure, is easy to operate, has tightly integrated components, and operates stably, effectively reducing production costs and improving product quality and production efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 A schematic diagram of a graphite crucible mold pressing device; Figure 2 This is a partial schematic diagram of the pressing equipment; Figure 3 This is a schematic diagram of the secondary pressure mechanism; Figure 4 A schematic diagram of the main pressure mechanism; Figure 5 This is a schematic diagram of the pressure head.

[0015] Explanation of reference numerals in the attached figures: 1. Support frame; 2. Main pressure plate; 3. Secondary pressure plate; 4. Crucible mold; 5. Secondary hydraulic rod; 6. Main hydraulic rod; 7. Main hydraulic cylinder; 8. Secondary hydraulic cylinder; 9. Hydraulic cylinder housing; 10. Hollow pressure head; 11. Sliding bushing; 12. Lower pressure column; 13. Solid pressure head; 14. Demolding solvent tank; 15. Release tube; 16. Jacket; 17. Hose; 18. Water pump; 19. Suction tube; 20. Spiral groove. Detailed Implementation

[0016] To provide a clearer explanation and illustration of the technical solution and implementation of this utility model, several preferred specific embodiments for implementing the technical solution of this utility model are described below. The following description is merely exemplary and not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these drawings, the same or similar reference numerals indicate the same or similar parts and features. The various drawings only schematically illustrate the concept and principle of the embodiments of this disclosure and do not necessarily show the specific dimensions and proportions of the various embodiments of this disclosure. The technical solution of this utility model will be clearly and completely described below in conjunction with embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model.

[0017] Example 1: This graphite crucible mold press head release agent application device has two left and right support frames 1, with a hydraulic cylinder housing 9 fixed at the top of the two support frames 1. A main hydraulic cylinder 7 is fixed in the center of the inner cavity of the hydraulic cylinder housing 9, and four auxiliary hydraulic cylinders 8 are fixed at the four corners. The hydraulic extension end of the main hydraulic cylinder 7 is connected to the main hydraulic rod 6, and the hydraulic extension end of the auxiliary hydraulic cylinders 8 is connected to the auxiliary hydraulic rod 5. A main pressure plate 2 is fixed at the bottom of the main hydraulic rod 6. Sliding bushings 11 adapted to slide with the auxiliary hydraulic rods 5 are embedded in the four corners of the main pressure plate 2. The auxiliary hydraulic rods 5 pass through the main pressure plate 2. A lower pressure column 12 is fixed at the bottom of the main pressure plate 2, and a solid press head 13 is fixed at the bottom of the lower pressure column 12. The length of the solid press head 13 is equal to the opening depth of the crucible mold 4 and is consistent with the outer diameter of the lower pressure column 12. A secondary pressure plate 3 is fixed to the outer ring of the secondary hydraulic rod 5. The secondary pressure plate 3 is penetrated by a solid pressure head 13 and a lower pressure column 12. A circular hole is opened in the center of the secondary pressure plate 3 for the lower pressure column 12 and the solid pressure head 13 to pass through downwards. The diameter of the circular hole is larger than the outer diameter of the lower pressure column 12 and the solid pressure head 13. A hollow pressure head 10 is provided below the secondary pressure plate 3. The upper and lower ends of the hollow pressure head 10 are connected. It is inserted into the crucible mold 4 by downward pressure, and the outer ring contacts the inner wall of the crucible mold 4. A demolding solvent tank 14 is fixed inside the right support frame 1. The demolding solvent tank 14 is transparent and a liquid level sensor is installed inside. A ring of clips 16 is fixed to the top of the outer surface of the lower pressure column 12. The clips 16 are hollow inside and have multiple through holes arranged in a ring array on the bottom surface. A water pump 18 is fixed to the left side wall of the release solvent tank 14. The pump 18's suction port is connected to a suction pipe 19 that penetrates into the inner cavity of the release solvent tank 14, and its discharge end is connected to a flexible hose 17 that penetrates into the inner cavity of the jacket 16. Multiple release pipes 15 are fixed through the bottom surface of the jacket 16. The bottom ends of the release pipes 15 are respectively connected to the top ends of the spiral grooves 20. Twenty spiral grooves 20 are arranged in a ring array on the outer surface of the pressure column 12. During operation, the water pump 18 extracts the release agent from the release solvent tank 14, which enters the jacket 16 through the flexible hose 17, and then flows through the release pipes 15 to the spiral grooves 20. The release agent is distributed along the spiral grooves 20 to cover the surface of the pressure column 12, and then to the surface of the solid pressure head 13. The main hydraulic cylinder 7 and the auxiliary hydraulic cylinder 8 work to press down the solid pressure head 13 and the hollow pressure head 10, completing the molding and application of the release agent. When lifted, the solid pressure head 13 is successfully demolded due to the release agent.

[0018] Example 2: In this device, the connection and arrangement of the support frame 1, hydraulic cylinder housing 9, main hydraulic cylinder 7, auxiliary hydraulic cylinder 8, main hydraulic rod 6, and auxiliary hydraulic rod 5 are the same as in Example 1. The main pressure plate 2 cooperates with the auxiliary hydraulic rod 5 through the sliding bushing 11 to ensure downward pressure stability. The lower pressure column 12 is fixed to the solid pressure head 13, and the size of the solid pressure head 13 is adapted to the crucible mold 4. The auxiliary pressure plate 3 is penetrated by the lower pressure column 12 and the solid pressure head 13, and the hollow pressure head 10 cooperates with the crucible mold 4 below the auxiliary pressure plate 3. The release solvent tank 14 is inside the right support frame 1, and the water pump 18 is connected to the liquid extraction pipe 19 and the hose 17 to deliver the release agent to the jacket 16. Unlike Example 1, the outer surface of the lower pressure column 12 has 30 spiral grooves 20 arranged in a ring array, and the number of through holes and release pipes 15 at the bottom of the jacket 16 corresponds to this. During operation, the release agent is delivered by the water pump 18, and after being diverted in the jacket 16, it enters the spiral groove 20 through the release pipe 15. Due to the increase in the number of spiral grooves 20, the release agent is more evenly and quickly distributed on the surface of the lower pressure column 12 and the solid pressure head 13. Subsequently, the main and auxiliary hydraulic cylinders work to achieve molding and demolding. When lifted, the solid pressure head 13 is successfully demolded.

[0019] Example 3: In the overall structure of this device, the support frame 1 supports the hydraulic cylinder housing 9, and the main hydraulic cylinder 7 and the auxiliary hydraulic cylinder 8 are respectively connected to the main hydraulic rod 6 and the auxiliary hydraulic rod 5. The main pressure plate 2 is connected to the auxiliary hydraulic rod 5 through the sliding bushing 11. The lower pressure column 12 and the solid pressure head 13 are fixed below the main pressure plate 2, and the size of the solid pressure head 13 meets the requirements of the crucible mold 4. The auxiliary pressure plate 3 is penetrated by the lower pressure column 12 and the solid pressure head 13, and the hollow pressure head 10 is below the auxiliary pressure plate 3 and cooperates with the crucible mold 4. The demolding solvent tank 14 is inside the right support frame 1, and the water pump 18 is connected to the liquid extraction pipe 19 and the hose 17 to deliver the demolding agent to the jacket 16. In this example, the outer surface of the lower pressure column 12 has 40 spiral grooves 20 arranged in a ring array, and the number of through holes and release pipes 15 at the bottom of the jacket 16 is appropriate. During operation, the release agent is delivered to the jacket 16 by the water pump 18, and then enters the spiral groove 20 through the release pipe 15. Because there are more spiral grooves 20, the release agent can be more finely and evenly distributed on the surface of the lower pressure column 12 and the solid pressure head 13. The main and auxiliary hydraulic cylinders work to complete the molding and demolding operations. When lifted, the solid pressure head 13 can be demolded smoothly.

[0020] Based on the above-described preferred technical solution, the workflow of this technical solution is explained as follows: The water pump 18 associated with the release solvent tank 14 inside the right support frame 1 is activated. The water pump 18 extracts release agent from the release solvent tank 14 through the extraction pipe 19, and delivers it through the hose 17 to the inner cavity of the jacket 16 fixed to the top of the outer ring surface of the lower pressure column 12. Since the jacket 16 is hollow inside and has multiple through holes arranged in a ring array on its bottom surface, the bottom port of each through hole connects to the top port of the release pipe 15. The release agent flows from the through holes into the release pipe 15, and then flows through the bottom port of the release pipe 15 to the 20-hole ring array on the outer ring surface of the lower pressure column 12. At the top port of the 40 spiral grooves 20, the release agent flows downward along the spiral grooves 20, evenly covering the surface of the lower pressure column 12, and then covering the surface of the solid pressure head 13 fixed at the bottom of the lower pressure column 12. At this time, the release agent has been pre-sprayed on the inner wall of the mold. Then, the main hydraulic cylinder 7 and the auxiliary hydraulic cylinder 8 start to work. The hydraulic extension end of the main hydraulic cylinder 7 drives the main hydraulic rod 6 to move downward. The main hydraulic rod 6 pushes the main pressure plate 2 to move downward. The sliding bushings 11, which are fitted and slide with the auxiliary hydraulic rod 5 at the four corners of the main pressure plate 2, can ensure that the main pressure plate 2 moves downward smoothly. The main pressure plate 2 drives the lower pressure column 12 and the solid pressure head 13 to move downward. At the same time, the hydraulic extension end of the auxiliary hydraulic cylinder 8 drives the auxiliary hydraulic rod 5 to move downward. The auxiliary hydraulic rod 5 pushes the auxiliary pressure plate 3 to move downward. The circular hole opened in the center of the auxiliary pressure plate 3 allows the lower pressure column 12 and the solid pressure head 13 to pass downward. Furthermore, the diameter of the circular hole is larger than the outer diameter of the lower pressure column 12 and the solid pressure head 13, allowing the lower pressure column 12 and the solid pressure head 13 to pass through smoothly. The auxiliary pressure plate 3 drives the hollow pressure head 10 to move downward. The upper and lower ends of the hollow pressure head 10 are interconnected and are inserted into the crucible mold 4. The outer surface of the hollow pressure head 10 contacts the inner wall of the crucible mold 4. The solid pressure head 13 enters the crucible mold 4 to perform the forming operation. After the forming is completed, the main hydraulic cylinder 7 and the auxiliary hydraulic cylinder 8 drive the main hydraulic rod 6 and the auxiliary hydraulic rod 5 to move upward. The main hydraulic rod 6 drives the main pressure plate 2, the lower pressure column 12 and the solid pressure head 13 to move upward. The auxiliary hydraulic rod 5 drives the auxiliary pressure plate 3 and the hollow pressure head 10 to move upward. Since the surface of the solid pressure head 13 is evenly covered with release agent and the inner wall of the mold is also sprayed with release agent, it can smoothly separate from the formed product during the upward lifting process of the solid pressure head 13, thus achieving demolding.

[0021] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A graphite crucible mold press head demolding agent smearing device comprising two left and right support frames (1), characterized in that: The top ends of the support frames (1) are fixed with hydraulic cylinder housings (9), the center of the inner cavity of the hydraulic cylinder housing (9) is fixed with a main hydraulic cylinder (7), and the four corners of the inner cavity of the hydraulic cylinder housing (9) are fixed with four auxiliary hydraulic cylinders (8). The hydraulic telescopic end of the main hydraulic cylinder (7) is connected with a main hydraulic rod (6), and the hydraulic telescopic end of the auxiliary hydraulic cylinder (8) is connected with an auxiliary hydraulic rod (5). The bottom end of the main hydraulic rod (6) is fixed with a main pressure plate (2) that is penetrated by the auxiliary hydraulic rod (5). The bottom surface of the main pressure plate (2) is fixed with a lower pressure column (12). The bottom end of the lower pressure column (12) is fixed with a solid pressure head (13). The outer ring of the auxiliary hydraulic rod (5) is fixed with an auxiliary pressure plate (3) that is penetrated by the solid pressure head (13) and the lower pressure column (12). A hollow pressure head (10) is provided below the auxiliary pressure plate (3). The support frame (1) on the right side has a demolding solvent tank (14) fixed inside. A jacket (16) is fixed on the top of the outer ring surface of the lower pressure column (12). A water pump (18) is fixed on the left side wall of the demolding solvent tank (14). The discharge end of the water pump (18) is connected to a hose (17) that penetrates into the inner cavity of the jacket (16). Multiple release tubes (15) are fixed through the bottom surface of the jacket (16). 20-40 spiral grooves (20) are opened in a ring array on the outer ring surface of the lower pressure column (12).

2. A graphite crucible mold press head release agent application device according to claim 1, characterized in that: The main pressure plate (2) has a sliding bushing (11) at each of its four internal corners that is adapted to slide with the auxiliary hydraulic rod (5).

3. A graphite crucible mold press head release agent application device according to claim 1, characterized in that: The inner center of the sub-pressure plate (3) is provided with a circular hole through which the lower pressure column (12) and the solid pressure head (13) pass downward, and the diameter of the circular hole is larger than the outer diameter of the lower pressure column (12) and the solid pressure head (13).

4. A graphite crucible mold press head release agent application device according to claim 1, characterized by: The upper and lower ports of the hollow pressure head (10) are interconnected, and the hollow pressure head (10) is pressed down and inserted into the interior of the crucible mold (4), with the outer ring surface of the hollow pressure head (10) in contact with the inner cavity sidewall of the crucible mold (4).

5. A graphite crucible mold press head release agent application device according to claim 1, characterized by: The length of the solid pressure head (13) is equal to the opening depth of the crucible mold (4), and the outer diameter of the solid pressure head (13) is consistent with that of the lower pressure column (12).

6. The device for applying release agent to the pressure head of a graphite crucible mold according to claim 1, characterized in that: The interior of the jacket (16) is hollow. Multiple through holes arranged in a ring array are opened on the bottom surface of the jacket (16). The bottom port of the through holes is connected to the top port of the liquid release tube (15). The bottom port of the liquid release tube (15) is connected to the top port of the spiral groove (20).

7. The device for applying release agent to the pressure head of a graphite crucible mold according to claim 1, characterized in that: The pump (18) is connected to a suction pipe (19) that extends into the cavity of the release solvent tank (14) at the suction port away from the hose (17). The release solvent tank (14) is transparent and has a liquid level sensor installed inside.

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