Ceramic vacuum chuck gel injection mold

Abstract

The utility model relates to a gel injection mold for a ceramic vacuum chuck, and effectively solves the problems that when an existing gel injection mold is applied to production of the ceramic vacuum chuck, on one hand, the sealing performance of the mold is poor, the liquid leakage phenomenon is easy to occur in the injection molding process, raw material waste is caused, the production cost is low, and the like. The forming quality of the green body is influenced, flaws and even holes appear on the surface of the sucker, and the vacuum adsorption performance is reduced; and on the other hand, the demolding design of the mold is not reasonable enough, and as the ceramic green body is tightly attached to the inner wall of the mold after gel curing, a traditional demolding mode easily causes damage to the green body. According to the ceramic vacuum chuck gel casting mold, the forming plates, the partition plates and the hydraulic rods are relatively pressed and fixed, then gaps existing between the forming plates are reduced, raw material waste is reduced, meanwhile, formed ligands are separated from the inner walls of the shaping grooves through pushing of the pushing blocks, and therefore the integrity during demolding is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of gel injection molding technology, specifically relating to a ceramic vacuum suction cup gel injection mold. Background Technology

[0002] In modern industrial manufacturing, especially in industries such as precision electronics, optical devices, and semiconductors, the demand for high-precision, non-destructive handling of parts is increasing. Ceramic vacuum chucks, with their high hardness, wear resistance, chemical stability, and good insulation properties, have become ideal adsorption and handling tools.

[0003] Traditional ceramic forming processes, such as dry pressing and isostatic pressing, have many limitations when preparing ceramic vacuum chucks with complex shapes and high precision requirements. Dry pressing easily leads to uneven density of the blank, which can easily cause delamination and cracking in products like chucks with fine internal structures and thin walls. Moreover, it is difficult to guarantee the flatness of the chuck surface and the adsorption accuracy. Although isostatic pressing can improve the density uniformity problem, the equipment cost is high, the process is complex, and the subsequent processing of the formed blank is difficult, which is not conducive to large-scale production.

[0004] Gel injection molding technology has emerged as a novel near-net-shape molding process, effectively overcoming some of the shortcomings of traditional molding methods. Based on the cross-linking polymerization of organic monomers under the action of an initiator to form a three-dimensional network structure, the gel injection molding process uniformly disperses and solidifies ceramic powder in situ, enabling high-precision molding of complex-shaped ceramic parts. However, existing gel injection molds still present some problems when applied to the production of ceramic vacuum suction cups. On the one hand, the mold's sealing performance is poor, easily leading to leakage during the injection process. This not only wastes raw materials but also affects the molding quality of the blank, causing defects or even holes on the suction cup surface, reducing its vacuum adsorption performance. On the other hand, the mold's demolding design is not reasonable enough. Because the ceramic blank adheres tightly to the inner wall of the mold after gel solidification, traditional demolding methods easily damage the blank, causing chipping at the suction cup edges and breakage at thin-walled areas, significantly reducing the yield. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the prior art, this utility model provides a ceramic vacuum suction cup gel injection mold. The ceramic vacuum suction cup gel injection mold can be fixed by the relative clamping between the molding plate, the partition plate and the hydraulic rod, thereby reducing the gap between the molding plates and reducing material waste. At the same time, with the cooperation of the guide groove and the push block, the molded ligand can be separated from the inner wall of the molding groove by the push block after the material is molded, thereby ensuring the integrity during demolding.

[0006] A ceramic vacuum suction cup gel injection mold includes a positioning base. A hydraulic rod is fixedly installed on one side of the outer surface of the positioning base. A limiting block is detachably connected to the inner sidewall of the positioning base away from the hydraulic rod. A molding plate is detachably connected to the outer surface of the limiting block. A shaping groove is formed on the outer surface of the molding plate. A feed port is formed on the top of the molding plate above the shaping groove. A guide groove is formed on the inner bottom wall of the shaping groove on the outer surface of the molding plate. A push block is slidably connected to the inner wall of the guide groove. A partition is detachably connected to the other side of the outer surface of the molding plate.

[0007] Preferably, the output end of the hydraulic rod is detachably connected to a pressure block at one end that passes through the positioning seat, and a pad is fixedly connected to the outer surface of the pressure block, with the outer surface of the pad pressing against the outer wall of the partition.

[0008] Preferably, a guide block is fixedly connected to the end of the inner wall of the positioning seat away from the hydraulic rod, and the outer surface of the guide block is slidably connected to the outer wall of the limiting block.

[0009] Preferably, a slot is provided on one side of the outer surface of the molding plate, and a locking block is fixedly connected to both the side of the outer surface of the limiting block closest to the molding plate and the other side of the outer surface of the molding plate.

[0010] Preferably, a compression spring is fixedly connected to the inner wall of the guide groove, and the outer surface of the push block is fixedly connected to the end of the compression spring.

[0011] Preferably, the outer surface of the partition is provided with a positioning hole that matches the card block, and the inner wall of the positioning hole engages with the outer surface of the card block.

[0012] The beneficial effects of the above technical solution are as follows:

[0013] (1) The ceramic vacuum suction cup gel injection mold, through the combination of the molding plate and the shaping groove, can ensure that the material enters the shaping groove through the feed port, thereby shaping the material. It is also connected with the partition plate to seal the shaping groove, so that the material can completely fill the shaping groove, thereby shaping the material. In addition, it cooperates with the hydraulic rod to achieve a tight connection between the molding plate and the shaping plate, thereby reducing leakage when injecting material. Furthermore, different numbers of molding plates and partition plates can be used in combination according to the specific use, thereby improving the applicability of the device.

[0014] (2) The ceramic vacuum suction cup gel injection mold, through the combination of guide groove and push block, can separate the molded material from the inner wall of the molding groove from the middle of the molding groove by means of the sliding of the push block in the guide groove after the material is shaped, thus making it easier for workers to demold the material and improving the integrity of the material after demolding. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall installation structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the installation structure of the limiting block of this utility model;

[0017] Figure 3 This is a schematic diagram of the installation structure of the molding plate of this utility model;

[0018] Figure 4 This is a schematic diagram of the exploded structure of the molded plate of this utility model;

[0019] Figure 5 This is a schematic diagram of the molding plate structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the pusher block installation structure of this utility model.

[0021] In the diagram: 1. Positioning seat; 2. Hydraulic rod; 3. Pressure block; 4. Pad block; 5. Guide block; 6. Limiting block; 7. Forming plate; 8. Shaping groove; 9. Feed port; 10. Slot; 11. Slot block; 12. Guide groove; 13. Compression spring; 14. Push block; 15. Partition plate; 16. Positioning hole. Detailed Implementation

[0022] The foregoing and other technical contents, features and effects of this utility model are described in conjunction with the appendix below. Figures 1 to 6 The embodiments are described in detail below.

[0023] This embodiment provides a ceramic vacuum suction cup gel injection mold, as shown in the attached figure, including a positioning seat 1. A hydraulic rod 2 is fixedly installed on one side of the outer surface of the positioning seat 1. A pressure block 3 is detachably connected to one end of the hydraulic rod 2 that passes through the positioning seat 1. A pad 4 is fixedly connected to the outer surface of the pressure block 3. The outer surface of the pad 4 abuts against the outer wall of the partition plate 15. A limit block 6 is detachably connected to one end of the inner side wall of the positioning seat 1 away from the hydraulic rod 2. A guide block 5 is fixedly connected to one end of the inner side wall of the positioning seat 1 away from the hydraulic rod 2. The outer surface of the guide block 5 is slidably connected to the outer wall of the limit block 6. The positioning seat 1 serves as the basic support structure of the entire mold device, providing an installation positioning reference for other components and ensuring the relative position stability of each component during operation. The hydraulic rod 2 provides an adjustable clamping force, and its output end can push the pressure block 3 to achieve a tight compaction action between the partition plate 15 and the molding plate 7.

[0024] During the injection molding stage, the hydraulic rod 2 extends, driving the pressure block 3, along with the pad 4, to press the partition plate 15 tightly. This ensures a tight fit between the molding plates 7, effectively reducing gaps between them, preventing material leakage, ensuring the sealing of the injection molding process, and improving molding quality. The pressure block 3, acting as a force transmission component between the hydraulic rod 2 and the partition plate 15, evenly distributes the thrust of the hydraulic rod 2 onto the partition plate 15, preventing direct contact between the hydraulic rod 2 and the partition plate 15 from causing excessive local pressure and damaging the partition plate 15. This ensures uniform force distribution on the partition plate 15 and guarantees pressure between the molding plates 7 when the mold closes. Force balance ensures that the raw material is evenly distributed in the molding groove 8, which helps to improve the density uniformity of the ceramic blank. The limiting block 6 connects and fixes the molding plate 7, and cooperates with the positioning seat 1 to constrain the position of the molding plate 7. At the same time, its own sliding design facilitates the installation and replacement of the molding plate 7. It also allows the molding plate 7 to be stably installed in the positioning seat 1, withstand the injection molding pressure without displacement, ensure the shape accuracy of the molding groove 8, and can easily disassemble the molding plate 7 when it is necessary to adjust the mold specifications or perform maintenance, thereby improving the versatility and maintenance convenience of the mold.

[0025] The outer surface of the limiting block 6 is detachably connected to a forming plate 7. A shaping groove 8 is formed on the outer surface of the forming plate 7. A feed inlet 9 is formed on the top of the forming plate 7 above the shaping groove 8. A slot 10 is formed on one side of the outer surface of the forming plate 7. A locking block 11 is fixedly connected to both the side of the outer surface of the limiting block 6 near the forming plate 7 and the other side of the outer surface of the forming plate 7. A guide groove 12 is formed on the inner bottom wall of the shaping groove 8 on the outer surface of the forming plate 7. The forming plate 7 directly participates in the shaping process of the ceramic blank. The shaping groove 8 inside provides a forming space for the raw material. The feed inlet 9 is used to introduce the raw material. The slot 10, locking block 11 and other structures on the outer surface are used to connect with other components. They determine the outer contour and internal structural features of the ceramic vacuum suction cup. The precise design of the shaping groove 8 can realize the near-net-shape forming of complex-shaped suction cups. The shaping groove 8 contains and limits the ceramic raw material, so that it is solidified and formed according to the preset shape. It is the key structure that gives the final shape of the ceramic vacuum suction cup.

[0026] The feed inlet 9 serves as the channel for raw materials to enter the molding tank 8, guiding liquid or semi-liquid ceramic raw materials smoothly into the mold. The slot 10 and the locking block 11 cooperate to achieve rapid connection and positioning between the molding plate 7 and the limiting block 6 or other molding plates 7, forming a stable mold component structure, improving assembly speed, and ensuring tight and reliable connection. During the injection molding process, it can effectively prevent the molding plate 7 from loosening or misaligning, ensuring the sealing of the molding tank 8 and the molding accuracy of the blank. At the same time, it is easy to disassemble and replace the molding plate 7 to adapt to different production needs. The locking block 11 corresponds to the slot 10 and plays a snap-fit ​​connection role, enhancing the connection strength and stability between components. It is not only used for the splicing and combination of the molding plate 7 itself, but also ensures that the partition plate 15 is tightly attached to the molding plate 7 when connected with the partition plate 15, further strengthening the mold sealing, preventing raw material leakage during injection molding, ensuring the complete molding of the suction cup blank, and improving the finished product qualification rate.

[0027] A compression spring 13 is fixedly connected to the inner wall of the guide groove 12. The outer surface of the push block 14 is fixedly connected to the end of the compression spring 13. The push block 14 is slidably connected to the inner wall of the guide groove 12. A partition 15 is detachably connected to the other side of the outer surface of the forming plate 7. The outer surface of the partition 15 has a positioning hole 16 that matches the locking block 11. The inner wall of the positioning hole 16 engages with the outer surface of the locking block 11. The guide groove 12 provides a precise sliding guide path for the push block 14, limits the movement direction of the push block 14, and enables it to move in a predetermined direction. The pusher moves smoothly within the molded surface. During the demolding stage, it guides the pusher block 14 outward from inside the molding groove 8, separating the molded ceramic blank from the inner wall of the molding groove 8. This avoids damage caused by uneven force on the blank during demolding, ensuring the integrity of key parts such as the suction cup edge and thin wall, and improving the yield. Normally, the compression spring 13 provides inward preload to the pusher block 14, keeping it in its initial position and not affecting the injection molding process. During demolding, after the arch support personnel push the pusher block 14 to complete the demolding, the pusher block 14 can be reset in time, without affecting the next use.

[0028] The partition plate 15 works with the forming plate 7 to seal the molding groove 8. It also serves as a replaceable component of the mold to adapt to the production needs of suction cups of different thicknesses or specifications. At the same time, it can enhance the mold's sealing performance, prevent raw material leakage, and ensure injection molding quality. By flexibly combining different partition plates 15, the mold cavity size can be quickly adjusted to meet diverse production requirements, improve mold versatility, reduce production costs, and increase production efficiency. The positioning hole 16 works with the locking block 11 to achieve precise positioning and connection between the partition plate 15 and the forming plate 7, ensuring that the partition plate 15 is installed in an accurate position.

[0029] In summary, the steps for using this ceramic vacuum suction cup gel injection mold are as follows:

[0030] 1. Guided by the guide block 5, slide the limiting block 6 along the inner wall of the positioning seat 1 to the corresponding position, so that the limiting block 6 is initially connected to the positioning seat 1, ensuring that the limiting block 6 can move stably and is positioned accurately. Pick up the forming plate 7, and use the slot 10 on one side of it to cooperate with the locking block 11 on the limiting block 6 to lock the forming plate 7 onto the outer surface of the limiting block 6. At the same time, pay attention to the position of the locking block 11 on the other side of the forming plate 7. Select a suitable partition 15, align the positioning hole 16 on the partition 15 with the locking block 11 on the other side of the forming plate 7, and lock them tightly. The partition 15 is securely connected to the molding plate 7 to form a sealed molding cavity prototype, ensuring that all components are tightly connected without gaps. The output end of the hydraulic rod 2 is inserted into the positioning seat 1, and the pressure block 3 and the pad block 4 are pressed against the outer wall of the partition 15. The hydraulic rod 2 pushes the pressure block 3, and the pressure block 3 drives the pad block 4 to press tightly against the outer wall of the partition 15. The pressure is transmitted to the molding plate 7 through the partition 15, so that the molding plates 7 are tightly fitted together, reducing gaps, preventing material leakage, and ensuring the sealing of the injection molding process until the material completely fills the molding groove 8 and reaches the preset injection volume.

[0031] 2. Through the feed inlet 9 at the top of the molding plate 7, slowly and evenly inject the prepared liquid or semi-liquid raw materials containing ceramic powder, organic monomers, initiators, etc. into the molding tank 8. Pay attention to controlling the injection speed to avoid splashing or uneven injection of raw materials.

[0032] 3. After the raw material is injected, keep the mold stationary and wait for a period of time to allow the organic monomers to cross-link and polymerize under the action of the initiator to form a three-dimensional network structure, so that the ceramic powder is evenly dispersed and solidified in situ, completing the forming process of the ceramic green body in the molding groove 8. The curing time needs to be controlled according to the characteristics of the raw material, the size of the green body and other factors.

[0033] 4. After curing, release the pressure of hydraulic rod 2, remove the molding plate 7 and partition plate 15 outwards, manually push push block 14 to overcome the preload of compression spring 13, and let push block 14 slide outwards from the middle of the inner bottom wall of molding groove 8 along guide groove 12. Push block 14 contacts and pushes the molded ceramic blank, gradually separating it from the inner wall of molding groove 8. When the blank is separated from the inner wall of molding groove 8 to a certain extent, carefully remove the blank from the mold to complete demolding. During demolding, be careful to be gentle to avoid damaging the blank, especially the edges of suction cups, thin walls and other critical parts. After demolding, compression spring 13 automatically resets push block 14 to the initial position, ready for the next demolding operation.

[0034] The above description is only for illustrating the present utility model. It should be understood that the present utility model is not limited to the above embodiments, and various modifications that conform to the concept of the present utility model are within the protection scope of the present utility model.

Claims

1. A ceramic vacuum suction cup gel injection mold, comprising a positioning base (1), characterized in that: A hydraulic rod (2) is fixedly installed on one side of the outer surface of the positioning seat (1). A limiting block (6) is detachably connected to the end of the inner wall of the positioning seat (1) away from the hydraulic rod (2). A forming plate (7) is detachably connected to the outer surface of the limiting block (6). A shaping groove (8) is opened on the outer surface of the forming plate (7). A feed port (9) is opened on the top of the forming plate (7) above the shaping groove (8). A guide groove (12) is opened on the inner bottom wall of the shaping groove (8) on the outer surface of the forming plate (7). A push block (14) is slidably connected to the inner wall of the guide groove (12). A partition plate (15) is detachably connected to the other side of the outer surface of the forming plate (7).

2. The ceramic vacuum suction cup gel injection mold according to claim 1, characterized in that: The output end of the hydraulic rod (2) is detachably connected to a pressure block (3) at one end of the positioning seat (1). A pad (4) is fixedly connected to the outer surface of the pressure block (3), and the outer surface of the pad (4) abuts against the outer wall of the partition plate (15).

3. The ceramic vacuum suction cup gel injection mold according to claim 1, characterized in that: A guide block (5) is fixedly connected to one end of the inner wall of the positioning seat (1) away from the hydraulic rod (2), and the outer surface of the guide block (5) is slidably connected to the outer wall of the limiting block (6).

4. The ceramic vacuum suction cup gel injection mold according to claim 1, characterized in that: A slot (10) is provided on one side of the outer surface of the molding plate (7), and a locking block (11) is fixedly connected to both the side of the outer surface of the limiting block (6) close to the molding plate (7) and the other side of the outer surface of the molding plate (7).

5. A ceramic vacuum suction cup gel injection mold according to claim 1, characterized in that: A compression spring (13) is fixedly connected to the inner wall of the guide groove (12), and the outer surface of the push block (14) is fixedly connected to the end of the compression spring (13).

6. The ceramic vacuum suction cup gel injection mold according to claim 1, characterized in that: The outer surface of the partition (15) is provided with a positioning hole (16) that is adapted to the locking block (11), and the inner wall of the positioning hole (16) is engaged with the outer surface of the locking block (11).

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