Anti-adhesion aluminum mold

Abstract

The utility model relates to the technical field of molds, and discloses an anti-adhesion aluminum mold which comprises a mold body, the mold body comprises a lower mold and a section mold installed in the lower mold, two winding wheels used for rotation and isolation cloth used for directional movement are installed in the lower mold, and coil springs are arranged on the two winding wheels. The two ends of the isolation cloth are wound around the two coil springs correspondingly, and the winding wheel cooperates with the coil springs to control the isolation cloth to be wound or released. According to the anti-adhesion aluminum mold, an aluminum material and a section mold are effectively isolated during die casting through the arranged isolation cloth, adhesion is prevented, winding and unwinding of the isolation cloth are facilitated through cooperation of a winding wheel and a coil spring, operation is convenient, fast and efficient, when the isolation cloth is sunken in the die casting process, the coil spring can release a part of the isolation cloth to play a buffering role, and the aluminum material is prevented from being adhered to the section mold. And the coil spring can buffer the stress of the isolation cloth, the use part can be replaced, and the service life of the isolation cloth is prolonged.

Description

Technical Field

[0001] This application relates to the field of mold technology, specifically to an anti-sticking aluminum mold. Background Technology

[0002] A mold is a tool used to shape articles. Molds are widely used in the processing and molding of various materials. They are usually made of specific materials and have precise shapes and dimensions. The fixed mold part mainly includes parts such as the fixed mold base plate, fixed mold plate, and sprue bushing. The fixed mold base plate is used to fix other parts of the fixed mold part. The fixed mold plate has cavities and is the main part of the outer surface of the molded aluminum product. The moving mold part is installed on the moving mold plate of the injection molding machine and mainly includes parts such as the moving mold base plate, moving mold plate, ejector pin, and ejector plate. The moving mold plate has a core that cooperates with the fixed mold cavity to form the molding space. The ejector pin and ejector plate are used to eject the product after molding. The mold guiding mechanism includes guide pillars and guide sleeves, which are generally installed between the fixed mold and the moving mold. The guide pillars are installed on the moving mold, and the guide sleeves are installed on the fixed mold. Their function is to ensure that the moving mold and the fixed mold can be accurately aligned when the mold is closed, and to avoid collision and damage to the core and cavity. When processing aluminum, it can make the aluminum material be shaped into the required product shape through specific processes (such as die casting, injection molding, stamping, etc.) inside.

[0003] In traditional molds, the contact area between the aluminum material and the lower mold is relatively large during actual use. In the die casting process, the large contact area will cause the friction to increase significantly. Under this high friction state, the aluminum material is very easy to stick tightly to the mold surface, which will lead to adhesion. Moreover, during the long-term die casting process, the temperature of the lower mold will also increase. Excessive mold temperature can easily cause the aluminum material to adhere to the surface of the lower mold cavity, making demolding difficult. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides an anti-sticking aluminum mold that has the advantages of anti-sticking, retractability, and self-lubrication, thus solving the problem of easy sticking.

[0005] To achieve the above objectives, this application provides the following technical solution: an anti-adhesion aluminum mold, comprising a mold body, the mold body comprising a lower mold and a template installed inside the lower mold, the lower mold having two rotating take-up wheels and a separating cloth for directional movement installed inside, each of the two take-up wheels having a coil spring, the two ends of the separating cloth being wound around the two coil springs respectively, the take-up wheels cooperating with the coil springs to control the separating cloth to perform take-up or release actions.

[0006] The isolation cloth has a folded edge structure with a rotating wheel at the folded edge, and the folded edge is immersed in the lubricating oil in the lower mold. The isolation cloth is in contact with the bearing surface of the mold. During die casting, the isolation cloth adheres to the aluminum material and the cavity surface of the mold.

[0007] Through the above solution, the isolation cloth can adhere to the surface of the aluminum material and the mold cavity during die casting, forming an isolation between the two. This effectively prevents direct contact between the aluminum material and the mold, reduces adhesion, improves the quality of die-cast products, and lowers the defect rate. Two winding wheels with coil springs are installed in the lower mold. The winding wheels, in conjunction with the coil springs, control the winding or releasing action of the isolation cloth, which allows for convenient winding and unwinding operations. This facilitates flexible use of the isolation cloth and improves operational convenience and efficiency. The isolation cloth has a folded edge structure, and the folded edge is immersed in the lubricating oil in the lower mold. This allows the isolation cloth to automatically wet the lubricating oil during movement. When adhering to the aluminum material and the mold, the lubricating oil can further enhance the isolation effect, reduce friction, and extend the service life of the isolation cloth and the mold.

[0008] Furthermore, a push rod is slidably connected inside the mold. One end of the push rod is fixedly connected to a spring between it and the inner bottom wall of the lower mold, and the other end is fixedly connected to a grid plate. The grid plate has a slot inside.

[0009] With the above scheme, during die casting, the aluminum material, together with the isolation cloth, drives the grid plate to move and causes the spring to start storing force, preparing for subsequent demolding.

[0010] Furthermore, one end of the mold is rounded.

[0011] The above method reduces the friction between the mold and the isolation cloth.

[0012] Furthermore, the insulating cloth is a polyester fiber composite material.

[0013] Through the above solution, the polyester fiber composite material has good flexibility and heat resistance, and can be easily rolled up to meet the rolling requirements of the isolation cloth. At the same time, when subjected to die casting pressure, it can fit well into the cavity and aluminum surface, playing a good isolation role. Polyester fiber has a certain oil absorption property, which can absorb and retain lubricating oil, making it fully wetted. During the die casting process, the lubricating oil can further reduce the friction between the aluminum and the isolation cloth, preventing adhesion.

[0014] Furthermore, the mold has two oil drainage channels inside, and the mold cavity, the oil drainage channels, and the cavity of the lower mold are connected in sequence.

[0015] Through the above scheme, the lubricating oil in the lower mold cavity enters the mold cavity through the isolation cloth, and the lubricating oil in the mold cavity flows back to the lower mold through the oil drain channel, forming a circulation.

[0016] Furthermore, an oil pump is fixedly installed on one side of the lower mold. Both the oil inlet and outlet of the oil pump are connected to oil pipes. One oil pipe is connected to the cavity of the lower mold, and the other oil pipe is connected to the oil cavity of the lower mold. A conveying channel is provided inside the mold, and the height of the conveying channel is lower than that of the oil discharge channel.

[0017] With the above scheme, when the oil level in the cavity is lower than the predetermined value, the lubricating oil stored in the oil cavity is supplied to the cavity by a delivery pump to ensure that the isolation cloth can always be immersed in lubricating oil.

[0018] Furthermore, the height of the lowest rotating wheel does not exceed the oil drain channel, and the depth of the lubricating oil in the cavity of the lower mold is higher than the rotating wheel and lower than the oil drain channel.

[0019] The above solution ensures that the folded edges of the isolation cloth can be immersed in lubricating oil, and prevents the lubricating oil in the cavity from directly entering the mold cavity through the oil drain channel.

[0020] Furthermore, both the take-up roller and the rotating roller are rotatably connected to the cavity of the lower mold, and one end of the take-up roller passes through the lower mold and is connected to an external power source.

[0021] By connecting the winding wheel and the rotating wheel to the lower mold, the stability of the winding wheel and the rotating wheel can be improved. The winding wheel can be controlled by an external power source, thereby moving the isolation cloth.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This anti-adhesion aluminum mold, through the installation of an isolation cloth, effectively isolates the aluminum material from the mold during die casting, preventing adhesion. The isolation cloth is easily retracted and extended via a winding wheel and a coil spring, making operation convenient and efficient. When the isolation cloth dents during die casting, the coil spring releases a portion of it to cushion the impact and prevent breakage. The coil spring also buffers the stress on the isolation cloth, allowing for replacement of the section and extending its lifespan. Furthermore, when the stressed portion of the isolation cloth dents, the old section can be removed by rotating the winding wheel and coil spring, allowing a new section to continue the die casting process. After die casting is complete, the core rises and detaches from the mold; the lubricating oil prevents adhesion between the core and the isolation cloth. Attached Figure Description

[0024] Figure 1 This is a diagram illustrating the overall structure of this application;

[0025] Figure 2 This is a sectional view of the front view of the mold in this application;

[0026] Figure 3 This is a sectional view of the front view of the mold and die in this application;

[0027] Figure 4 This is a sectional view of the top view of the mold and die in this application;

[0028] Figure 5This is a cross-sectional view of the die-cast aluminum material using a core-fitting mold in this application.

[0029] In the picture:

[0030] 1. Mold body; 2. Lower mold; 201. Cavity; 202. Oil cavity; 3. Molding mold; 4. Isolation cloth; 5. Coil spring; 6. Oil drain channel; 7. Oil pump; 8. Push rod; 9. Grid plate; 10. Rotating wheel; 11. Core; 12. Conveying channel. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 , Figure 2 and Figure 3 This embodiment of an anti-adhesion aluminum mold includes a mold body 1, which includes a lower mold 2 and a mold 3 installed inside the lower mold 2. The lower mold 2 has two rotating take-up wheels and a directional isolation cloth 4 installed inside. Both the take-up wheels and the rotating wheels 10 are rotatably connected to the cavity 201 of the lower mold 2. One end of the take-up wheel passes through the lower mold 2 and is connected to an external power source. By connecting the take-up wheel and the rotating wheel 10 to the lower mold 2, the stability of the take-up wheel and the rotating wheel 10 can be improved. The external power source can control the take-up wheels, thereby moving the isolation cloth 4. Both take-up wheels are equipped with winding... The two ends of the isolation cloth 4 are respectively wound around two coil springs 5. The winding wheel, together with the coil springs 5, controls the winding or releasing action of the isolation cloth 4. The isolation cloth 4 is made of polyester fiber composite material. Polyester fiber composite material has good flexibility and heat resistance, and can be easily wound up to meet the winding requirements of the isolation cloth 4. At the same time, when subjected to die casting pressure, it can better fit the cavity and the surface of the aluminum material, playing a good isolation role. Polyester fiber has a certain oil absorption property, which can absorb and retain lubricating oil, making it fully wetted. During the die casting process, the lubricating oil can further reduce the friction between the aluminum material and the isolation cloth 4, preventing adhesion.

[0033] Please see Figure 2 and Figure 3The isolation cloth 4 has a folded edge structure, with a rotating wheel 10 at the folded edge. The folded edge is immersed in the lubricating oil inside the lower mold 2. The isolation cloth 4 contacts the bearing surface of the mold 3. During die casting, the isolation cloth 4 adheres to the aluminum material and the cavity surface of the mold 3, forming an isolation between them. This effectively prevents direct contact between the aluminum material and the mold 3, reduces adhesion, improves the quality of the die-cast product, and lowers the defect rate. The lower mold 2 is equipped with two rollers... The winding wheel of spring 5, in conjunction with the winding spring 5, controls the winding or unwinding action of the isolation cloth 4, which facilitates the winding and unwinding operation of the isolation cloth 4, making it easier and more flexible to use the isolation cloth 4, and improving the convenience and efficiency of operation. The isolation cloth 4 has a folded edge structure, and the folded edge is immersed in the lubricating oil in the lower mold 2, so that the isolation cloth 4 can be automatically wetted with lubricating oil during the movement. When bonding the aluminum material and the mold 3, the lubricating oil can further enhance the isolation effect, reduce friction, and extend the service life of the isolation cloth 4 and the mold 3.

[0034] Please see Figure 2 and Figure 3 A push rod 8 is slidably connected inside the mold 3. One end of the push rod 8 is fixedly connected to the inner bottom wall of the lower mold 2 with a spring, and the other end is fixedly connected to a grid plate 9. The grid plate 9 has a groove inside. During die casting, the aluminum material and the isolation cloth 4 drive the grid plate 9 to move and cause the spring to start storing force to prepare for subsequent demolding. One end of the mold 3 is rounded to reduce the friction between the mold 3 and the isolation cloth 4.

[0035] Please see Figure 3 and Figure 4 The mold 3 has two oil drain channels 6 inside. The cavity of the mold 3, the oil drain channels 6 and the cavity 201 of the lower mold 2 are connected in sequence. The lubricating oil in the cavity 201 of the lower mold 2 enters the cavity of the mold 3 through the isolation cloth 4. The lubricating oil in the cavity flows back to the lower mold 2 through the oil drain channels 6 and forms a circulation. The height of the rotating wheel 10 at the bottom does not exceed the oil drain channel 6. The depth of the lubricating oil in the cavity 201 of the lower mold 2 is higher than the rotating wheel 10 and lower than the oil drain channel 6. On the one hand, this ensures that the folded edge of the isolation cloth 4 can be immersed in the lubricating oil. On the other hand, it prevents the lubricating oil in the cavity 201 from directly entering the cavity of the mold 3 through the oil drain channels 6.

[0036] Please see Figure 2 and Figure 3An oil pump 7 is fixedly installed on one side of the lower mold 2. Both the oil inlet and outlet of the oil pump 7 are connected to oil pipes. One oil pipe is connected to the cavity 201 of the lower mold 2, and the other oil pipe is connected to the oil cavity 202 of the lower mold 2. The mold 3 is provided with a conveying channel 12. The height of the conveying channel 12 is lower than that of the oil discharge channel 6. When the amount of oil in the cavity 201 is lower than the predetermined value, the conveying pump supplies the lubricating oil stored in the oil cavity 202 to the cavity 201 to ensure that the isolation cloth 4 can always be immersed in lubricating oil.

[0037] This embodiment of an anti-adhesion aluminum mold utilizes an isolation cloth 4 to effectively separate the aluminum material from the mold 3 during die casting, preventing adhesion. The isolation cloth 4 is easily retracted and extended via a winding wheel and a coil spring 5, making operation convenient and efficient. Since the fixed end of the isolation cloth 4 is connected to the coil spring 5, when the isolation cloth 4 becomes concave during die casting, the coil spring 5 can release a portion of the isolation cloth 4 to provide cushioning and prevent it from breaking under stress. The coil spring 5 buffers the stress on the isolation cloth 4, allows for replacement of the used portion, and extends the service life of the isolation cloth 4. Furthermore, when the stressed portion of the isolation cloth 4 becomes concave, the old portion can be removed by rotating the winding wheel and the coil spring 5, allowing a new portion to continue to replace it during die casting. It should be noted that, in its initial state, the coil spring 5 is twisted by an external force, such as a motor-driven winding wheel, to store elastic potential energy and simultaneously tighten the isolation cloth 4. When the isolation cloth 4 is compressed by the aluminum material and the core 11 and mold 3 during the die-casting process, this is equivalent to applying a reverse force to the coil spring 5. As an elastic element, the coil spring 5 will respond to this reaction force and begin to release the stored elastic potential energy, causing the coil spring 5 to rotate in the opposite direction, thereby releasing part of the isolation cloth 4. After the die-casting is completed, the core 11 rises and separates from the mold 3. With the help of lubricating oil, it can prevent the core 11 and the isolation cloth 4 from sticking together.

[0038] It should be noted that the main body 1 of the mold should be equipped with a moving mold part. The core 11 of the moving mold part is compatible with the mold 3. It should be ensured that the core 11 and the mold 3 can be accurately aligned when the mold is closed, so as to avoid collision and damage between the core 11 and the cavity. When processing aluminum material, it can enable the aluminum material to be formed by die casting inside.

[0039] The working principle of the above embodiments is as follows:

[0040] First, fix the fixed end of the coil spring 5 to the take-up wheel, and fix its free end to the fixed end of the isolation cloth 4. Wrap both ends of the isolation cloth 4 around the two coil springs 5 ​​respectively. Connect the two take-up wheels to an external power source, which can be a motor. The motor drives the take-up wheels to rotate, which in turn drives the coil springs 5 ​​to rotate and tightens the isolation cloth 4. At this time, the coil springs 5 ​​should be in a static state. The oil cavity 202 of the lower mold 2 can be connected to a pipe. Lubricating oil is introduced into the oil cavity 202 through the pipe. Then, start the oil pump 7 to pump the oil into the oil cavity. Part of the lubricating oil in cavity 202 is transported to cavity 201 through an oil pipe. The lubricating oil in cavity 201 overflows the rotating wheel 10 below and the oil delivery channel. The lubricating oil in one cavity 201 enters the other cavity 201 along the oil delivery channel, making the lubricating oil depth in the two cavities 201 equal. Since the folded edge below the isolation cloth 4 is immersed in lubricating oil, it can carry lubricating oil. By controlling the rotation of the take-up wheel and the coil spring 5, the part of the isolation cloth 4 carrying lubricating oil is moved to the mold 3. Then, as... Figure 5 As shown, the aluminum material to be processed is placed on the isolation strip. The lower mold 2 and the mold 3 provide support. The descent of the core 11 drives the aluminum material and the isolation strip to descend, allowing the aluminum material to be die-cast inside the cavity of the mold 3. During the descent, the isolation strip pushes the grid plate 9 down, and the grid plate 9 drives the push rod 8 down. The push rod 8 compresses the spring, causing the spring to store force, preparing for the subsequent reset work. During this process, the lubricating oil carried by the isolation strip can contact the core 11 and the mold 3. At this time, the isolation cloth 4 is located between the core 11 and the mold 3, and the isolation cloth 4 plays a role in isolating the two to prevent them from sticking together. It should be noted that the fixed end of the isolation cloth 4 is connected to the coil spring 5. Next, when the isolation cloth 4 is dented during the die casting process, the coil spring 5 can undergo elastic deformation and release a portion of the isolation cloth 4 to act as a buffer and prevent the isolation cloth 4 from breaking under stress. When the stressed part of the isolation cloth 4 is dented, the old part can be removed by rotating the take-up wheel and the coil spring 5, so that the new part can continue to take over the die casting work. After the die casting is completed, the core 11 rises and separates from the mold 3. Under the action of lubricating oil, it can prevent the core 11 from sticking to the isolation cloth 4. Under the elastic deformation of the coil spring 5 and the reset action of the grid plate 9, the elastic layer is finally reset. The reset of the grid plate 9 can separate the aluminum material from the mold 3, preparing for the next aluminum material to be processed and formed.

[0041] Next, as the lubricating oil carried by the isolation cloth 4 falls onto the grid plate 9 and into the mold 3, some of the lubricating oil is discharged from the slot of the grid plate 9 into the mold 3. The lubricating oil in the mold 3 will flow back into the cavity 201 through the oil discharge channel 6 for recycling. Since some lubricating oil will adhere to the aluminum material, when the aluminum material is removed, and as the amount of processed aluminum material increases, the lubricating oil content in the cavity 201 will decrease. To prevent the lubricating oil depth from falling below the rotating wheel 10, the oil pump 7 can supply lubricating oil to the cavity 201 to ensure that the isolation cloth 4 can always adhere to the lubricating oil. In summary, because the isolation cloth 4 can be adjusted and moved at will, its service life is improved.

[0042] 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.

[0043] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-adhesion aluminum mold, comprising a mold body (1), characterized in that: The mold body (1) includes a lower mold (2) and a mold (3) installed inside the lower mold (2). The lower mold (2) has two rotating winding wheels and a directional isolation cloth (4) installed inside. Both winding wheels are equipped with coil springs (5). The two ends of the isolation cloth (4) are respectively wound around the two coil springs (5). The winding wheels work together with the coil springs (5) to control the isolation cloth (4) to perform winding or releasing actions. The isolation cloth (4) has a folded edge structure, with a rotating wheel (10) at the folded edge, and the folded edge is immersed in the lubricating oil in the lower mold (2). The isolation cloth (4) is in contact with the bearing surface of the mold (3). During die casting, the isolation cloth (4) adheres to the aluminum material and the cavity surface of the mold (3).

2. The anti-adhesion aluminum mold according to claim 1, characterized in that: A push rod (8) is slidably connected inside the mold (3). One end of the push rod (8) is fixedly connected to the inner bottom wall of the lower mold (2) with a spring, and the other end is fixedly connected to a grid plate (9). The grid plate (9) has a slot inside.

3. The anti-adhesion aluminum mold according to claim 1, characterized in that: One end of the mold (3) is rounded.

4. The anti-adhesion aluminum mold according to claim 1, characterized in that: The isolation cloth (4) is a polyester fiber composite material.

5. The anti-adhesion aluminum mold according to claim 1, characterized in that: The mold (3) has two oil drain channels (6) inside, and the cavity of the mold (3), the oil drain channels (6) and the cavity (201) of the lower mold (2) are connected in sequence.

6. The anti-adhesion aluminum mold according to claim 5, characterized in that: An oil pump (7) is fixedly installed on one side of the lower mold (2). The oil pump (7) has oil pipes connected to both the oil inlet and the oil outlet. One oil pipe is connected to the cavity (201) of the lower mold (2), and the other oil pipe is connected to the oil cavity (202) of the lower mold (2). A conveying channel (12) is provided inside the mold (3). The height of the conveying channel (12) is lower than that of the oil discharge channel (6).

7. The anti-adhesion aluminum mold according to claim 5, characterized in that: The height of the lowest rotating wheel (10) does not exceed the oil drain channel (6), and the depth of the lubricating oil in the cavity (201) of the lower mold (2) is higher than the rotating wheel (10) and lower than the oil drain channel (6).

8. The anti-adhesion aluminum mold according to claim 1, characterized in that: Both the take-up roller and the rotating roller (10) are rotatably connected to the cavity (201) of the lower mold (2). One end of the take-up roller passes through the lower mold (2) and is connected to an external power source.

Images