An optical mold core dismounting device

Abstract

The utility model provides a kind of optical mould mould core dismounting device, four corners of mould core are equipped with sealing hole and inserting column, inserting column is equipped with annular groove, annular groove is fixedly installed sealing ring, inserting column is equipped with guide hole, sealing hole is sealedly installed with sealing plug, sealing plug is fixedly connected with pull handle.When installation, the position, quantity and diameter corresponding with inserting column are provided with insertion hole on mould, the depth of insertion hole is equal to the height of inserting column, use tool to hook pull handle, the sealing plug of sealing hole is taken out, the inserting column of mould core is inserted into insertion hole of mould, the sealing ring of inserting column is sealingly connected with the inner wall of insertion hole, the air in insertion hole is forced to discharge to outside from guide hole-sealing hole, make inserting column contact with the hole bottom of insertion hole, the sealing plug is inserted into sealing hole, make inserting column and insertion hole form sealed space, make inserting column and insertion hole connect fixed, and then make mould core fixed on mould, quickly complete mould core fixation.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, specifically relating to an optical mold core disassembly device. Background Technology

[0002] Optical molds are key cavity fixtures used in the injection molding of optical products, while the mold core is the core precision component located at the center of the optical mold. Its structure is usually extremely complex, difficult to process, and expensive to manufacture. In actual production, the manufacturing cost of the mold core often consists mainly of labor costs, which may even far exceed the cost of the materials themselves. The mold core generally consists of two parts: an upper mold core and a lower mold core.

[0003] In existing technologies, optical mold cores are mostly connected to the optical mold using bolts. Specifically, threaded holes are typically machined directly into the core, and bolts are used to fix the core to the mold. However, this bolted connection method has significant drawbacks in long-term use. Threaded holes are prone to wear and corrosion under frequent disassembly and assembly, and in complex operating environments (such as corrosive media). Over time, the degree of wear and corrosion gradually intensifies, eventually leading to thread failure and preventing the bolts from being screwed in. Once the threaded holes are unusable, the core cannot be effectively connected to the optical mold, thus affecting the normal production and quality of optical products.

[0004] Chinese utility model patent CN217862549U discloses an optical mold core disassembly device, specifically relating to the field of optical mold technology. It includes an upper mold core and a lower mold core, with mounting components on both sides of the upper mold core. A mounting post is fixedly connected to the center of the bottom of the upper mold core, and an extension groove is formed on the surface of the mounting post. The mounting post of this utility model can be inserted into the built-in groove. The mating block enters the extension groove under the pressure of the built-in groove wall. The positioning spring contracts under the pressure of the mating block. When the mating block aligns with the mating groove, the elastic force of the positioning spring drives the mating block into the mating groove. This design solves the shortcomings of the prior art. When the threaded hole is worn or corroded, the user can disassemble and replace the positioning strip with the support frame, preventing the mold core from being unable to connect to the optical mold due to corrosion of the threaded hole. Furthermore, the upper and lower mold cores are fixed by the mating block and the mating groove. While the mold core and mold are indirectly connected through the mounting components, they are still fixed with bolts. These bolts engage with threaded holes on the mold, and the threaded holes still pose a risk of thread failure. Utility Model Content

[0005] The purpose of this invention is to provide an optical mold core disassembly device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an optical mold core disassembly device, comprising mold cores symmetrically arranged vertically, each of the four corners of the mold core being provided with a sealing hole and a plug-in post, the plug-in post being provided with an annular groove, the annular groove being fixedly installed with a sealing ring, the plug-in post being provided with a guide hole, the guide hole being connected to the sealing hole, the sealing hole being sealed with a sealing plug, and the sealing plug being fixedly connected to a pull handle.

[0007] Preferably, the sealing plug is fixedly connected to the handle by an insert injection molding process, and the sealing plug is made of phenyl silicone rubber.

[0008] Preferably, the sealing plug has raised textures, and the inner wall of the sealing hole has recessed textures.

[0009] Preferably, a sealing gasket is fixedly connected to the mold core at the root of the insertion post, and the sealing gasket is made of phenyl silicone rubber.

[0010] Preferably, the mold core has a groove, and a magnet is fixedly installed in the groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] During installation, the mold has insertion holes corresponding to the position, number, and diameter of the insertion pins. The depth of the insertion holes is equal to the height of the insertion pins. Using a tool to hook the handle, the sealing plug of the sealing hole is removed. The insertion pin of the mold core is inserted into the insertion hole of the mold. The sealing ring of the insertion pin is sealed to the inner wall of the insertion hole. The air in the insertion hole is forced to be discharged to the outside through the guide hole-sealing hole, so that the insertion pin contacts the bottom of the insertion hole. At this time, the sealing plug is inserted into the sealing hole, so that a sealed space is formed between the insertion pin and the insertion hole, so that the insertion pin and the insertion hole are connected and fixed, thereby fixing the mold core on the mold and quickly completing the mold core fixing. Attached Figure Description

[0013] Figure 1 This is a structural view of the present invention.

[0014] Figure 2 This is a structural view of the mold core of this utility model.

[0015] Figure 3 This is an exploded structural view of the mold core of this utility model.

[0016] Figure 4 This is a cross-sectional view of the insertion post of the mold core of this utility model.

[0017] The diagram is labeled as follows: mold core 1, sealing hole 2, insertion post 3, ring groove 4, sealing ring 5, guide hole 6, sealing plug 7, pull handle 8, raised texture 9, concave texture 10, sealing gasket 11, groove 12, magnet 13. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1:

[0020] This utility model provides an optical mold core disassembly device, comprising a mold core 1 symmetrically arranged vertically. Each of the four corners of the mold core 1 has a sealing hole 2 and a connecting post 3. The connecting post 3 has an annular groove 4, on which a sealing ring 5 is fixedly installed. The connecting post 3 has a guide hole 6 communicating with the sealing hole 2. A sealing plug 7 is installed in the sealing hole 2, and the sealing plug 7 is fixedly connected to a pull handle 8. The sealing plug 7 is fixedly connected to the pull handle 8 through an insert injection molding process. The sealing plug 7 is made of phenyl silicone rubber. The sealing plug 7 has raised textures 9, and the inner wall of the sealing hole 2 has recessed textures 10. A sealing gasket 11, also made of phenyl silicone rubber, is fixedly connected to the root of the mold core 1 and the connecting post 3. The mold core 1 has a groove 12, on which a magnet 13 is fixedly installed.

[0021] With the above technical solution, when installing this utility model, the mold is provided with insertion holes corresponding to the position, number and diameter of the insertion pins 3. The depth of the insertion holes is equal to the height of the insertion pins 3. Using a tool to hook the pull handle 8, the sealing plug 7 of the sealing hole 2 is removed. The insertion pins 3 of the mold core 1 are inserted into the insertion holes of the mold. The sealing ring 5 of the insertion pin 3 is sealed to the inner wall of the insertion hole. The air in the insertion hole is forced to be discharged to the outside from the guide hole 6-sealing hole 2, so that the insertion pin 3 contacts the bottom of the insertion hole. At this time, the sealing plug 7 is inserted into the sealing hole 2, so that a sealing space is formed between the insertion pin 3 and the insertion hole, so that the insertion pin 3 is connected and fixed to the insertion hole, thereby fixing the mold core 1 on the mold and quickly completing the fixing of the mold core 1.

[0022] Example 2:

[0023] In this embodiment, the mold core 1 has sealing holes 2 and insertion posts 3 at each of its four corners. The insertion post 3 has an annular groove 4, within which a sealing ring 5 is fixedly installed. The sealing ring 5 is made of an elastic material and can form a tight fit with the inner wall of the insertion hole on the mold. The insertion post 3 has a guide hole 6 inside, which communicates with the sealing hole 2 to form a gas passage. A sealing plug 7 is installed inside the sealing hole 2. The sealing plug 7 is made of a high-temperature resistant and corrosion-resistant material and can completely seal the sealing hole 2. A handle 8 is fixedly connected to the top of the sealing plug 7, making it easy for the operator to grip and apply force.

[0024] During installation, the mold has corresponding insertion holes for the insert pins 3, and the depth of the insertion holes matches the height of the insert pins 3. During operation, first use a special tool to hook the pull handle 8 and remove the sealing plug 7 from the sealing hole 2. Then, align the insert pin 3 of the mold core 1 with the insertion hole on the mold and slowly insert it. As the insert pin 3 is inserted, the air inside the insertion hole is forced out through the guide hole 6 and the sealing hole 2 to the outside. When the insert pin 3 is fully inserted into the insertion hole, the end face of the insert pin 3 is in close contact with the bottom of the insertion hole, at which point the sealing ring 5 forms a sealing fit with the inner wall of the insertion hole. Finally, reinsert the sealing plug 7 into the sealing hole 2, creating a sealed space between the insert pin 3 and the insertion hole, using atmospheric pressure to firmly fix the mold core 1 onto the mold.

[0025] During disassembly, the operator simply holds the handle 8 and pulls the sealing plug 7 outward, allowing outside air to enter the sealed space between the insertion post 3 and the insertion hole through the sealing hole 2 and the guide hole 6, eliminating the negative pressure. At this point, the fixing force between the mold core 1 and the mold disappears, and the mold core 1 can be easily removed from the mold. The entire process does not require the use of traditional fasteners such as bolts, avoiding the problems of threaded hole wear and corrosion.

[0026] This device secures the mold core 1 using a pressure difference, while the sealing ring 5 between the insertion post 3 and the insertion hole ensures a tight seal. The design of the sealing plug 7 guarantees a good seal during installation while facilitating disassembly. The structure of the insertion posts 3 at the four corners and the sealing holes 2 ensures even stress distribution on the mold core 1, resulting in reliable fixation. This device is particularly suitable for optical molds that require frequent replacement of the mold core 1, significantly improving work efficiency and extending mold lifespan.

[0027] Example 3:

[0028] In this embodiment, the mold core 1 has sealing holes 2 and insertion posts 3 at each of its four corners. The insertion post 3 has an annular groove 4, within which a sealing ring 5 is fixedly installed. The insertion post 3 has a guide hole 6 inside, which communicates with the sealing hole 2. A sealing plug 7 is sealed inside the sealing hole 2, and this sealing plug 7 is fixedly connected to the handle 8 via an insert injection molding process.

[0029] In practice, the sealing plug 7 is made of phenyl silicone rubber. Phenyl silicone rubber has excellent high-temperature resistance and elastic recovery properties, ensuring that the sealing plug 7 maintains a good sealing effect during long-term use. The handle 8 and the sealing plug 7 are fixedly connected through an insert injection molding process. This process gives the joint between the handle 8 and the sealing plug 7 extremely high connection strength, which can withstand frequent pulling operations without loosening or falling off.

[0030] When it is necessary to install the mold core 1, first align the mold core 1 with the insertion hole position on the mold. The mold has insertion holes corresponding to the insertion pins 3, and the depth of the insertion holes matches the height of the insertion pins 3. The operator uses a special tool to hook the pull handle 8 and remove the sealing plug 7 from the sealing hole 2. At this time, the guide hole 6 of the insertion pin 3 and the sealing hole 2 form a communication channel.

[0031] Insert the insert pin 3 of the mold core 1 into the insertion hole of the mold. The sealing ring 5 on the insert pin 3 forms a tight fit with the inner wall of the insertion hole. As the insert pin 3 is inserted, the air in the insertion hole is forced out to the outside through the guide hole 6 and the sealing hole 2. When the insert pin 3 is fully inserted into the insertion hole and contacts the bottom of the hole, immediately reinsert the sealing plug 7 into the sealing hole 2. The phenyl silicone rubber material of the sealing plug 7 will undergo elastic deformation during the insertion process, forming a tight seal with the inner wall of the sealing hole 2.

[0032] After the sealing plug 7 is inserted, a sealed space is formed between the plug post 3 and the socket. Since the internal air has been expelled, the external atmospheric pressure exerts a continuous clamping force on the plug post 3, ensuring a secure connection between the plug post 3 and the socket. This connection method eliminates the need for threaded structures, completely avoiding the problems of thread wear and corrosion. Furthermore, the phenyl silicone rubber sealing plug 7 has excellent aging resistance, maintaining a stable sealing effect over a long period.

[0033] When it is necessary to disassemble the mold core 1, simply use a tool to hook the pull handle 8 and pull the sealing plug 7 out of the sealing hole 2. At this time, external air enters the space between the insert pin 3 and the insertion hole through the guide hole 6, eliminating the vacuum state, and the insert pin 3 can be easily removed from the insertion hole. The entire disassembly process is simple and quick, and will not cause any damage to the mold core 1 or the mold.

[0034] This device achieves rapid installation and disassembly between the mold core 1 and the mold through an innovative sealing connection method. The insert injection molding process ensures the reliability of the connection between the pull handle 8 and the sealing plug 7, while the phenyl silicone rubber sealing plug 7 guarantees long-term stable sealing performance. This design not only solves the problem of easy wear in traditional threaded connections but also greatly improves the efficiency and convenience of assembling and disassembling the mold core 1.

[0035] Example 4:

[0036] In this embodiment, the mold core 1 has sealing holes 2 and insertion posts 3 at each of its four corners. The insertion post 3 has an annular groove 4, and a sealing ring 5 is fixedly installed in the annular groove 4. The insertion post 3 has a guide hole 6 inside, which communicates with the sealing hole 2. A sealing plug 7 is sealed and installed in the sealing hole 2, and a pull handle 8 is fixedly connected to the sealing plug 7.

[0037] The side surface of the sealing plug 7 has a textured structure 9, which is evenly distributed along the axial direction of the sealing plug 7. The inner wall of the sealing hole 2 has a corresponding concave structure 10, the shape of which matches the textured 9. The sealing plug 7 is made of a soft, elastic material. When the sealing plug 7 is inserted into the sealing hole 2, the textured 9 and the concave 10 engage with each other, forming a tight fit. This fit significantly improves the sealing performance between the sealing plug 7 and the sealing hole 2, effectively preventing air leakage.

[0038] During installation, first align the insert pin 3 of mold core 1 with the insertion hole on the mold. Use a tool to hook the pull handle 8 and remove the sealing plug 7 from the sealing hole 2. Then insert the insert pin 3 into the insertion hole of the mold, and the sealing ring 5 on the insert pin 3 forms a preliminary seal with the inner wall of the insertion hole. As the insert pin 3 is inserted deeper, the air in the insertion hole is forced out to the outside through the guide hole 6 and the sealing hole 2. When the insert pin 3 is fully inserted and in contact with the bottom of the insertion hole, reinsert the sealing plug 7 into the sealing hole 2.

[0039] When the sealing plug 7 is inserted, the raised texture 9 on its surface engages with the recessed texture 10 on the inner wall of the sealing hole 2. Because the sealing plug 7 is made of a soft material, the raised texture 9 undergoes elastic deformation, completely filling the gaps in the recessed texture 10. This structure not only enhances the sealing effect but also improves the stability of the sealing plug 7 within the sealing hole 2. The increased friction between the sealing plug 7 and the sealing hole 2 effectively prevents the sealing plug 7 from accidentally falling off under vibration or external force.

[0040] When it is necessary to disassemble the mold core 1, simply pull the sealing plug 7 out of the sealing hole 2 using the pull handle 8. At this time, outside air enters the space between the insert post 3 and the insertion hole through the guide hole 6, breaking the vacuum state and allowing the insert post 3 to be easily pulled out of the insertion hole. The mating structure of the raised texture 9 and the concave texture 10 makes the insertion and removal process of the sealing plug 7 smoother, while ensuring that the same sealing effect is achieved every time it is installed.

[0041] The mating structure of the raised texture 9 and the recessed texture 10 in this embodiment is particularly suitable for applications requiring frequent disassembly. Since no threaded connection is involved, problems caused by thread wear or corrosion are completely avoided. The soft material properties of the sealing plug 7 allow it to withstand multiple insertions and removals without affecting its sealing performance, significantly extending the service life of the mold core 1.

[0042] Example 5:

[0043] In this embodiment, the mold core 1 has sealing holes 2 and insertion posts 3 at each of its four corners. The insertion post 3 has an annular groove 4, and a sealing ring 5 is fixedly installed in the annular groove 4. The insertion post 3 has a guide hole 6 inside, which communicates with the sealing hole 2. A sealing plug 7 is sealed and installed in the sealing hole 2, and a pull handle 8 is fixedly connected to the sealing plug 7.

[0044] A sealing gasket 11, made of phenyl silicone rubber, is fixedly connected to the base of the insertion post 3 of the mold core 1. When the insertion post 3 is fully inserted into the insertion hole of the mold, the sealing gasket 11 located at the base of the insertion post 3 will tightly cover the opening of the insertion hole, forming an effective seal. This sealing structure ensures that a sealed space is formed between the insertion hole and the insertion post 3, thereby achieving a stable fixing effect.

[0045] In actual operation, the mold has insertion holes corresponding to the position, number, and diameter of the insertion pins 3. The depth of the insertion holes is designed to be equal to the height of the insertion pins 3. During installation, first use a special tool to hook the pull handle 8 and remove the sealing plug 7 from the sealing hole 2. Then align the insertion pins 3 of the mold core 1 and insert them into the insertion holes of the mold. During insertion, the sealing ring 5 on the insertion pin 3 forms a tight fit with the inner wall of the insertion hole, forcing the air in the insertion hole to be discharged to the outside through the guide hole 6 and the sealing hole 2.

[0046] When the plug 3 is fully inserted into the socket and contacts the bottom of the hole, the sealing plug 7 is reinserted into the sealing hole 2. At this point, a completely sealed space is formed between the plug 3 and the socket, generating a negative pressure effect that tightly connects and secures the plug 3 to the socket. Simultaneously, the phenyl silicone rubber sealing gasket 11 at the base of the plug 3 further enhances the sealing effect, ensuring complete airtightness of the connection. This double-sealing structure not only improves the stability of the connection but also effectively prevents external contaminants from entering the connection area.

[0047] During disassembly, simply remove the sealing plug 7 to break the negative pressure within the sealed space, and the mold core 1 can be easily removed from the mold. The entire process eliminates the need for traditional fasteners such as bolts, avoiding issues like threaded hole wear and corrosion. The phenyl silicone rubber sealing gasket 11 possesses excellent high-temperature resistance and elastic recovery, enabling it to withstand frequent disassembly and assembly operations while maintaining stable sealing performance. This device, through its innovative sealing connection method, achieves rapid and reliable fixation between the mold core 1 and the mold, significantly improving the service life and maintenance convenience of the optical mold.

[0048] Example 6:

[0049] In this embodiment, the mold core 1 has sealing holes 2 and insertion posts 3 at each of its four corners. The insertion post 3 has an annular groove 4, and a sealing ring 5 is fixedly installed in the annular groove 4. The insertion post 3 has a guide hole 6 inside, which communicates with the sealing hole 2. A sealing plug 7 is sealed and installed in the sealing hole 2, and a pull handle 8 is fixedly connected to the sealing plug 7.

[0050] The mold core 1 has a groove 12, and a magnet 13 is fixedly installed in the groove 12. During the assembly of the mold core 1, the magnet 13 serves as a temporary fixation. Specifically, during assembly, the insertion pin 3 of the mold core 1 is first aligned with the insertion hole on the mold. Because the magnet 13 is installed on the mold core 1, it will adhere to the metal surface of the mold, temporarily fixing the mold core 1 in the predetermined position. This temporary fixing method facilitates subsequent operations and prevents the mold core 1 from shifting during assembly.

[0051] After the magnet 13 attracts and fixes the mold core 1, the operator inserts the plug pin 3 into the mold's insertion hole. The sealing ring 5 on the plug pin 3 forms a sealing fit with the inner wall of the insertion hole. As the plug pin 3 is inserted, the air in the insertion hole is forced out to the outside through the guide hole 6 and the sealing hole 2. When the plug pin 3 is fully inserted and contacts the bottom of the insertion hole, the operator inserts the sealing plug 7 into the sealing hole 2. The insertion of the sealing plug 7 cuts off the air passage, creating a sealed space between the plug pin 3 and the insertion hole. Due to the external atmospheric pressure, the plug pin 3 is firmly fixed in the insertion hole, thus achieving a stable connection between the mold core 1 and the mold.

[0052] When disassembling mold core 1, the operator uses a tool to hook the pull handle 8 and remove the sealing plug 7 from the sealing hole 2. At this time, external air enters the space between the insertion post 3 and the insertion hole through the guide hole 6, eliminating the vacuum suction force. Since the attraction force of magnet 13 is relatively small, the operator can easily remove mold core 1 from the mold. The entire disassembly process does not require the use of tools to tighten bolts, avoiding the wear problems that may be caused by threaded connections.

[0053] In this embodiment, the mounting position of the magnet 13 is specially designed. The groove 12 is set in the non-working area of ​​the mold core 1, which ensures the fixing effect of the magnet 13 without affecting the normal use function of the mold core 1. The magnet 13 is made of high-temperature resistant material, which can adapt to the temperature changes in the working environment of the mold. The magnetic strength of the magnet 13 has been precisely calculated to ensure both the reliability of temporary fixing and easy separation during disassembly.

[0054] This embodiment achieves rapid installation and disassembly of the mold core 1 by combining temporary fixation with vacuum adsorption. Compared with the traditional bolt connection method, this solution completely avoids the problem of thread wear, greatly extending the service life of the mold core 1. At the same time, since frequent bolt tightening is not required, it also reduces the labor intensity of operators and improves work efficiency.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0056] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. An optical mold core disassembly device, comprising mold cores symmetrically arranged vertically, characterized in that, Each of the four corners of the mold core is provided with a sealing hole and a plug-in post. The plug-in post is provided with an annular groove, and a sealing ring is fixedly installed in the annular groove. The plug-in post is provided with a guide hole, which communicates with the sealing hole. A sealing plug is installed in the sealing hole, and the sealing plug is fixedly connected to the handle.

2. The optical mold core disassembly device according to claim 1, characterized in that, The sealing plug is fixedly connected to the handle by an insert injection molding process, and the sealing plug is made of phenyl silicone rubber.

3. The optical mold core disassembly device according to claim 1, characterized in that, The sealing plug has raised textures, and the inner wall of the sealing hole has recessed textures.

4. The optical mold core disassembly device according to claim 1, characterized in that, The mold core is fixedly connected to a sealing gasket at the root of the insertion post, and the sealing gasket is made of phenyl silicone rubber.

5. The optical mold core disassembly device according to claim 1, characterized in that, The mold core has a groove, and a magnet is fixedly installed in the groove.

Images