Structure of a feed horn

Abstract

This invention provides a die-casting molding device for a feedhorn structure, belonging to the field of feedhorn die-casting manufacturing technology. It includes a first clamping component, a second clamping component, a core component, a cavity component, a telescopic insert assembly, an ejector assembly, and a first elastic ejector pin assembly. The device utilizes the opposing movement of the first and second clamping components to close the core and cavity, forming a sealed cavity. Molten alloy metal is then injected under high pressure for molding. The device innovatively incorporates the telescopic insert assembly and the first elastic ejector pin assembly. During ejection, the ejector plate moves the tower-shaped seat via a hollow column, and the insert retracts using an inclined groove. Only after the insert is fully retracted can the first ejector pin contact the limiting seat and eject the workpiece. This design not only solves the problem in traditional technology where the ejector pin cannot directly eject the feedhorn opening, but also effectively protects the integrity of the feedhorn's critical molding surfaces, ensuring product surface quality and dimensional accuracy.

Description

Technical Field

[0001] This invention relates to the field of feedhorn die casting manufacturing technology, and in particular to a feedhorn structure die casting molding apparatus. Background Technology

[0002] The feedhorn, as the primary radiator of a reflector antenna or lens antenna, is the "heart" of the antenna system. In satellite communications, deep space exploration, and airborne / spaceborne radar systems, the feedhorn is responsible for efficiently converting the radio frequency power in the transmission line into electromagnetic waves and accurately illuminating the parabolic reflector, or conversely, focusing the collected weak cosmic signal energy and transmitting it to the receiver. It also ensures good polarization performance, matching characteristics, and low VSWR within the operating frequency band. To meet the stringent requirements of modern aerospace communication systems for high front-to-back ratio, high cross-polarization discrimination, and low VSWR, feedhorns preferentially use metal alloys that differ from common traditional aluminum alloys, such as aluminum-copper alloys.

[0003] Currently, these high-precision metal alloys are mostly mass-produced using die casting to ensure dimensional stability and mechanical strength. However, in the traditional die casting process, due to the complex internal ridges, curved openings, and thin-walled structure of the feed horn, a temporary ejection area needs to be connected at the flared end of the feed horn to eliminate interference between the ejector pin and the inner core in order to ensure smooth ejection after die casting. After the feed horn is removed, these temporary ejection areas must be separated from the horn body by machining, which not only increases the number of steps but also easily damages the workpiece's forming surface, directly affecting the product's electrical performance and appearance quality. Summary of the Invention

[0004] The purpose of this invention is to provide a die-casting molding device for a feedhorn structure, which solves the technical problems of difficult demolding and easy damage to the molding surface of high-precision curved open workpieces, and achieves efficient, non-destructive demolding and reliable molding.

[0005] The objective of this invention is achieved through the following technical solution: a die-casting molding device for a feedhorn structure, comprising a first clamping member, a second clamping member, a core member, a cavity member, a telescopic insert assembly, an ejector assembly, and a first elastic ejector pin assembly.

[0006] The core seat component includes a core portion, the cavity seat component includes a cavity portion, the first clamping component and the second clamping component are movable toward each other, the core portion is fixedly connected to the middle of the inner side surface of the first clamping component, and the cavity portion is fixedly connected to the middle of the inner side surface of the second clamping component.

[0007] The telescopic insert assembly includes a tower-shaped base, the ejector assembly includes a hollow column, and the first elastic ejector pin assembly includes a first limiting seat. A block is slidably connected between the bottom end of the core and the top end of the first clamping member. The tower-shaped base is vertically located at the lower inner end of the core. A push slider is obliquely fixed to the inner side of the top end of the block. Push grooves are evenly and obliquely opened on the side of the tower-shaped base. Push sliders on the same side are slidably connected within the push grooves. A top plate is slidably connected to the inner cavity of the first clamping member. The hollow column is fixed to the middle of the top end of the top plate and is fixed to the bottom of the tower-shaped base. Hollow columns are evenly fixed to the top end of the top plate. A first ejector pin is elastically slidably inserted downwards into the top body of the first clamping member. The first limiting seat is fixed to the bottom end of the first ejector pin, and the first limiting seat on the same side is positioned directly opposite the first push column.

[0008] The first clamping component includes a first clamping plate, a support base, and guide pins. The bottom two sides of the support base are fixedly connected to the top of the first clamping plate, and the guide pins are evenly fixed to the top of the support base.

[0009] The second clamping component includes a second clamping plate, which is arranged opposite to the first clamping plate. Guide slides are evenly fixedly installed in the main body of the second clamping plate. The guide slides on the same side are slidably connected to the guide slides. The cavity is fixed to the bottom end of the second clamping plate. Cooling pipes are connected to the main body of the support, the second clamping plate, and the cavity.

[0010] The core component also includes a main inner ridge groove, which is evenly distributed on the outside of the second clamping plate.

[0011] The cavity component also includes a cavity, which is located in the middle of the main body of the cavity. The cavity and the middle of the main body of the second clamping plate are both provided with a gating hole. A diversion channel connected to the gating hole is provided at the top of the cavity. A gating seat is connected to the inlet of the gating hole. The outlet of the gating seat is inserted into the gating hole and then connected to the diversion channel.

[0012] The telescopic insert assembly also includes an end inner ridge groove, an inclined block, and a movable locking groove. The end inner ridge groove is provided on the outside of the insert. The inclined block is fixed to the inner top of the insert. The sliding block is fixed to the inner end of the inclined block. The inner bottom of the core is provided with a telescopic groove that matches the insert and the telescopic groove. The top of the main body of the support base is evenly provided with guide slide grooves. The bottom end of the insert is fixed with a guide slider. The guide slider on the same side is slidably inserted into the guide slide groove. A compression spring is connected between the guide slider and the guide slide groove. The movable locking groove is provided on the outer side of the guide slider. A locking groove is provided at the position opposite to the guide slide groove and the movable locking groove. One end of the compression spring is locked in the movable locking groove and the other end is locked in the locking groove.

[0013] The ejection assembly also includes an ejector guide seat. Ejector guide columns are uniformly fixed in the hollow structure between the first clamping plate and the support seat. The ejector guide seats are uniformly fixed in the main body of the ejector plate. The ejector guide seats on the same side are slidably connected to the ejector guide columns. A central sliding hole is opened in the middle of the support seat. The hollow column passes through the central sliding hole and is fixed to the bottom end of the tower-shaped seat.

[0014] The first elastic ejector pin assembly also includes a first ejector pin sliding hole and a first ejector spring. The first ejector pin sliding hole is evenly opened in the main body of the support base. An extension slide is evenly fixed at the bottom end of the support base. The position of the extension slide on the same side is directly opposite to the first ejector pin sliding hole. The first ejector pin on the same side is slidably connected to the first ejector pin sliding hole and the extension slide. The first ejector spring is sleeved on the outside of the first ejector pin, and one end is fixed to the bottom surface of the support base, and the other end is fixed to the top surface of the first limiting seat. The top end of the first ejector pin and the top end of the first ejector pin sliding hole are mutually matching conical frustum structures.

[0015] The device also includes a second elastic ejector assembly, which includes a second ejector, a second limiting seat, a second ejector spring, and an inner locking block. The main body of the core has a second ejector sliding hole in the middle. The second ejector is slidably connected in the second ejector sliding hole. The bottom end of the second ejector passes through the through hole of the tower-shaped seat and is fixed to the second limiting seat. The lower end of the hollow column has a second limiting groove. The inner locking block is locked at the lower end of the second limiting groove. The second limiting seat is slidably connected in the second limiting groove. The second ejector spring is sleeved on the outside of the hollow column, with one end locked to the top surface of the second limiting seat and the other end locked to the bottom surface of the support seat. The top ends of the second ejector and the second ejector are also matching conical frustum structures.

[0016] By adopting the above technical solution, the present invention can produce the following beneficial effects:

[0017] (1) The device solves the problem of difficult demolding of curved open workpieces with high precision and high standard requirements such as feedhorn by adopting a mechanical synchronization mechanism composed of telescopic insert assembly and first elastic ejector assembly. During the ejection process, the ejector plate first drives the tower-shaped seat to move through the hollow column. Through the sliding cooperation formed by the push groove and the push slider, the insert is forced to retract inward until it no longer blocks the first ejector. This synchronous action ensures that the first push column can only move to the position of pushing the first limit seat after the end inner ridge groove is successfully avoided. This not only solves the problem that the ejector cannot act on the opening position of the feedhorn in the traditional technology and directly remove it, but also effectively protects the integrity of the key forming surface of the feedhorn and significantly improves the yield and appearance quality of the product.

[0018] (2) The device achieves adaptive sealing and automatic reset during the die casting process through the separate design of the first elastic ejector assembly and the ejection assembly. During the die casting filling stage, the top of the first ejector is flush with the top of the first clamping component, forming a precise fit gap, which can effectively resist the high pressure penetration of the molten metal and ensure the integrity of the feed horn and the safety of the device during the molding process. After the ejection action is completed, the first ejector can automatically reset after the ejector plate returns to the initial position by utilizing the support elasticity, without the need for an additional driving device, thus simplifying the structure. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the first clamping member and the second clamping member of the present invention;

[0022] Figure 3 This is a schematic diagram of the cavity seat component of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the cavity in this invention;

[0024] Figure 5 This is a schematic diagram of the installation structure of the core seat component of the present invention;

[0025] Figure 6 This is a schematic diagram showing the positional relationship between the telescopic insert assembly and the core of the present invention;

[0026] Figure 7 This is a schematic diagram of the telescopic insert assembly of the present invention;

[0027] Figure 8 This is a schematic diagram of the connection structure of the insert portion of the present invention;

[0028] Figure 9 This is a schematic diagram of the structure of each set of inserts relative to the core in this invention;

[0029] Figure 10 This is a cross-sectional schematic diagram of the first elastic ejector pin assembly of the present invention;

[0030] Figure 11 This is an exploded structural diagram of the ejector assembly of the present invention;

[0031] Figure 12 This is a schematic diagram of the ejection assembly and the first limiting seat of the present invention;

[0032] Figure 13 This is a schematic diagram of the installation structure of the second elastic ejector pin assembly of the present invention;

[0033] Figure 14 This is a schematic diagram of the structure of the second ejector pin portion of the present invention;

[0034] Figure 15 This is a schematic diagram of the feed horn of the present invention.

[0035] Figure label:

[0036] 1. First clamping component; 101. First clamping plate; 102. Support seat; 103. Guide column;

[0037] 2. Second clamping component; 201. Second clamping plate; 202. Guide slide; 203. Cooling pipe;

[0038] 3. Core seat component; 301. Core; 302. Main inner ridge groove;

[0039] 4. Cavity seat component; 401. Cavity section; 402. Receptacle; 403. Flow channel; 404. Streaming hole;

[0040] 5. Pouring seat;

[0041] 6. Telescopic insert assembly; 601. Insert; 602. End inner ridge groove; 603. Inclined block; 604. Telescopic groove; 605. Tower-shaped base; 606. Pushing slide; 607. Pushing slider; 608. Guide slider; 609. Moving slot; 610. Compression spring; 611. Guide slide; 612. Fixing slot;

[0042] 7. Ejection assembly; 701. Ejecting guide column; 702. Ejecting plate; 703. Ejecting guide seat; 704. Hollow column; 705. First push column; 706. Ejection operation hole; 707. Central sliding hole;

[0043] 8. First elastic ejector pin assembly; 801. First ejector pin sliding hole; 802. First ejector pin; 803. Extension slide; 804. First limiting seat; 805. First ejector spring;

[0044] 9. Second elastic ejector pin assembly; 901. Second ejector pin sliding hole; 902. Second ejector pin; 903. Second limiting seat; 904. Second ejector spring; 905. Second limiting slide groove; 906. Inner locking block. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] Example 1:

[0048] An example of the present invention is an example of a molding device formed by a first clamping member 1, a second clamping member 2, a core seat member 3, a cavity seat member 4, a gating seat 5, a telescopic insert assembly 6, an ejector assembly 7, and a first elastic ejector pin assembly 8, which is connected to a die-casting machine for molding operations. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 15 As shown;

[0049] The first clamping member 1 and the second clamping member 2 can move toward each other with high precision. The core 301 is fixed to the middle of the inner side of the first clamping member 1, and the cavity 401 is fixed to the middle of the inner side of the second clamping member 2.

[0050] When the first clamping member 1 and the second clamping member 2 move toward each other, the cavity 401 and the core 301 can be driven to open and close. When the cavity 401 and the core 301 are closed, the molten metal can enter the cavity formed by the cavity 401 and the core 301 under a certain pressure through the pouring seat 5 provided on the second clamping member 2, and can quickly fill every corner of the cavity.

[0051] An insert 601 is slidably connected between the bottom end of the core 301 and the top end of the first clamping member 1. A tower-shaped base 605 is vertically disposed at the lower inner end of the core 301. A push slider 607 is obliquely fixed to the inner side of the top end of the insert 601. Push grooves 606 are evenly obliquely opened on the side of the tower-shaped base 605. The push slider 607 on the same side is slidably connected in the push groove 606. A top plate 702 is slidably connected in the inner cavity of the first clamping member 1. A hollow column 704 is fixed to the middle of the top end of the top plate 702, and after passing through the main body of the first clamping member 1, it is fixed to the bottom of the tower-shaped base 605. Hollow columns 704 are evenly fixed to the top of 702. First ejector pins 802 are evenly and elastically slid downward in the top body of the first clamping member 1. First limiting seat 804 is fixed to the bottom end of the first ejector pin 802. The first limiting seat 804 on the same side is directly opposite the first push column 705. When the push plate 702 is in the lower limit position, the outer surface of the insert 601 is flush with the outer surface of the core 301 to form an integral component. The first push column 705 is in a position that does not contact the first limiting seat 804. When there is no external force pushing the first limiting seat 804, the top of the first ejector pin 802 is flush with the top of the first clamping member 1.

[0052] And the first top spring 805 can only contact the bottom end of the first limit seat 804 when the top plate 702 moves upward and drives the insert 601 back to a position that does not block the first top pin 802.

[0053] The working principle is as follows:

[0054] The main structure of a feedhorn is usually made of metal alloy to ensure mechanical strength and dimensional stability. In order to balance good conductivity and lightweight properties, aluminum-copper alloy is preferred when manufacturing feedhorns using die casting technology.

[0055] Before die casting, aluminum ingots, copper or other alloying elements need to be proportioned in a specific ratio, and the good raw materials are put into a melting furnace and heated to 700℃-740℃ to completely melt them. The processed pure molten metal is then transferred into a holding furnace.

[0056] Before production begins, the die casting molding device needs to be connected to the die casting machine, and a release agent needs to be sprayed inside the cavity 401 and outside the core 301. The die casting machine drives the first clamping member 1 and the second clamping member 2 to move closer to each other, causing the core 301 and the cavity 401 to close, forming a complete sealed cavity for molding the feed horn body, which is reliably locked to resist the pressure generated during subsequent molten metal injection.

[0057] A fixed amount of molten metal is taken out from the holding furnace and poured into the cold chamber of the die casting machine for injection. The punch of the die casting machine pushes the molten metal from the water injection seat 5 set on the second clamping component 2 into the cavity formed by the cavity 401 and the core 301 at a certain speed and pressure. The high pressure ensures that the molten metal can instantly fill every corner of the cavity, and even thin-walled or complex parts can be perfectly formed.

[0058] During the die-casting process, the first ejector pin 802 is always positioned with its top end flush with the top end of the first clamping component 1;

[0059] Furthermore, those skilled in the art should understand that in order to achieve relative movement between the various moving parts of the device, there must be a fitting gap. Through the precise design of the fitting gap, such as the sliding fit between the first ejector pin 802 and the main body of the first clamping component 1, which is configured to be 0.02-0.05mm, this precise fitting gap can not only ensure the relative movement of the various moving parts, but also effectively prevent high-pressure aluminum liquid from penetrating into the depth of the gap by utilizing the flow resistance characteristics of molten metal in the micro-channel.

[0060] After the molten metal is filled, the pressure will continue to be maintained for a period of time (usually a few seconds to tens of seconds) to compensate for the volume change caused by the cooling and contraction of the metal, ensuring that the internal structure of the workpiece is dense and the dimensions are accurate.

[0061] The cooling water channels inside the device continuously supply cooling medium to keep the temperature within a reasonable range and accelerate the solidification of the workpiece.

[0062] After the workpiece has completely solidified, the die-casting machine drives the first clamping member 1 and the second clamping member 2 to move away from each other, thereby opening the core 301 and the cavity 401. After the core 301 and the cavity 401 are opened to a position that does not interfere with the removal of the workpiece, the die-casting machine drives the top plate 702 to move, so that the top plate 702 moves towards the core 301.

[0063] The push plate 702 drives the tower-shaped base 605 to move via the hollow column 704. The push groove 606 on the side of the tower-shaped base 605 forms a sliding engagement with the push slider 607 fixed on the inner side of the top of the insert 601. When the tower-shaped base 605 moves away from the first clamping member 1, the obliquely arranged push groove 606 pushes the push slider 607, forcing the insert 601 to retract and slide at the top of the core 301, so that the insert 601 retracts to a position that does not block the first ejector pin 802. Only after the insert 601 retracts to a position that does not block the first ejector pin 802 can the first push column 705 move to a position that contacts the bottom of the first limiting seat 804. Afterwards, as the push plate 702 continues to move and the insert 601 continues to retract, the first ejector pin 802 will push the formed feed horn out of the core 301.

[0064] After the first ejector pin 802 ejects the formed feed horn workpiece and separates it from the core 301, the feed horn workpiece can be removed by a robot or manually. The above removal methods are all existing technologies and will not be described in detail here.

[0065] After the ejection action is completed, the ejector plate 702 returns to its initial position. Under the action of the supporting elastic force, the first ejector pin 802 and the first limiting seat 804 automatically reset, so that the top of the first ejector pin 802 is flush with the top of the first clamping member 1, ready to enter the next cycle.

[0066] The specific structures of the first clamping component 1, the second clamping component 2, the core component 3, and the cavity component 4 are as follows: Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the bottom two sides of the support base 102 are fixedly connected to the top of the first clamping plate 101, and the hollow structure between the first clamping plate 101 and the support base 102 is used to provide moving space for the ejection assembly 7.

[0067] The guide pins 103 are evenly fixed at the corners of the top of the support base 102;

[0068] The second clamping plate 201 is arranged opposite to the first clamping plate 101. Guide slide seats 202 are evenly fixedly installed in the main body of the second clamping plate 201. The guide slide seats 202 on the same side are slidably connected to the guide slide column 103. The cavity 401 is fixedly connected to the bottom end of the second clamping plate 201.

[0069] Cooling pipes 203 are connected to the main body of the support base 102, the second clamping plate 201 and the cavity 401. The inlet and outlet of the cooling pipes 203 are connected to external coolant supply devices, which can continuously supply cooling medium to the cooling pipes 203.

[0070] The number and layout of cooling pipes 203 in the main body of support 102, second clamping plate 201 and cavity 401 are determined based on the geometric characteristics of the cavity and the heat capacity distribution to ensure a uniform temperature field.

[0071] The main inner ridge grooves 302 are evenly opened on the outside of the second clamping plate 201 to form the inner ridge of the feed horn;

[0072] The cavity 402 is located in the middle of the main body of the cavity 401. The cavity 401 and the middle of the main body of the second clamping plate 201 are both provided with a gating hole 404. The inner top of the cavity 402 is provided with a diversion channel 403 that is connected to the gating hole 404.

[0073] A gating seat 5 is connected to the inlet of the gating hole 404. The outlet of the gating seat 5 is inserted into the gating hole 404 and then connected to the diversion channel 403.

[0074] This allows molten metal to enter from the gating seat 5 when the core 301 and the cavity 401 are closed in place, and enter the sealed cavity between the inner wall of the cavity 402 and the outer wall of the core 301 through the evenly distributed diversion channels 403.

[0075] The cross-section of the diversion channel 403 is a semi-circular structure, with its circular part opened at the top of the cavity 402. The end of the diversion channel 403 is connected to the inner wall of the cavity 402, which allows the gate residue formed by the diversion channel 403 to be connected to the closing end of the feedhorn workpiece after the die casting is completed.

[0076] The specific structure of the telescopic insert assembly 6 is as follows: Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the outer side of the insert 601 is provided with an end inner ridge groove 602, and the end inner ridge groove 602 on the same side cooperates with the main inner ridge groove 302 to form a complete feed horn inner ridge.

[0077] The inclined block 603 is fixed to the inner top of the insert 601, and the push slider 607 is fixed to the inner end of the inclined block 603;

[0078] The inner bottom end of the core 301 is provided with a telescopic groove 604 that is adapted to the insert 601 and the telescopic groove 604, so that both the insert 601 and the inclined block 603 can slide in the telescopic groove 604.

[0079] The top of the main body of the support base 102 is evenly provided with guide grooves 611. The bottom end of the insert 601 is fixed with a guide slider 608. The guide slider 608 on the same side is slidably inserted into the guide groove 611. A compression spring 610 is connected between the guide slider 608 and the guide groove 611. A movable slot 609 is opened on the outer side of the guide slider 608. A fixed slot 612 is opened at the position where the guide groove 611 and the movable slot 609 are directly opposite. One end of the compression spring 610 is fixed in the movable slot 609 and the other end is fixed in the fixed slot 612. This can provide the insert 601 with a supporting elastic force to slide towards the tower-shaped base 605, which is more conducive to the insert 601 forming a retraction action. The guide groove 611 can provide sufficient sliding stroke for the guide slider 608, so that the insert 601 can complete the action of extending outward and retracting inward.

[0080] The specific structures of the ejector assembly 7 and the first elastic ejector pin assembly 8 are as follows: Figure 10 , Figure 11 and Figure 12As shown, a jacking guide column 701 is uniformly fixed in the hollow structure between the first clamping plate 101 and the support base 102. A jacking guide seat 703 is uniformly fixed in the main body of the jacking plate 702. The jacking guide seat 703 on the same side is slidably connected to the jacking guide column 701. A central sliding hole 707 is opened in the middle of the support base 102. The hollow column 704 passes through the central sliding hole 707 and is fixed to the bottom end of the tower-shaped base 605.

[0081] The first clamping plate 101 has a top-moving operation hole 706 in the middle. The force application device in the die-casting machine passes through the top-moving operation hole 706 and is connected to the top plate 702. With the power provided by the hydraulic system, the top plate 702 is pushed to move linearly. The force application device is equipped with a precision position sensor, which can ensure that the top plate 702 stops at a precise position. This is a commonly used technology. It can make the tower-shaped seat 605 and the push slider 607 form a sliding engagement, accurately converting the linear movement of the top plate 702 into the radial extension and retraction movement of the insert 601. This ensures that when the insert 601 extends outward, it can form an integral structure with the core 301 and can retract inward into place.

[0082] The first ejector pin sliding hole 801 is evenly opened in the body of the support base 102. The bottom end of the support base 102 is evenly fixed with the extension slide 803. The position of the extension slide 803 on the same side is directly opposite to the first ejector pin sliding hole 801. The first ejector pin 802 on the same side is slidably connected with the first ejector pin sliding hole 801 and the extension slide 803. By adding the extension slide 803, the stability and accuracy of the movement of the first ejector pin 802 can be improved, which is crucial for the first ejector pin 802.

[0083] The first top spring 805 is sleeved on the outside of the first top pin 802, with one end fixed to the bottom surface of the support base 102 and the other end fixed to the top surface of the first limiting base 804, which can provide downward support elastic force for the first limiting base 804 and the first top pin 802.

[0084] Furthermore, the top end of the first ejector pin 802 and the top end of the first ejector pin sliding hole 801 are mutually matched conical frustum structures, which can not only increase the contact area with the workpiece during the ejection process and improve the stability of ejection, but also improve the sealing effect between the head end of the first ejector pin 802 and the head end of the first ejector pin sliding hole 801.

[0085] Furthermore, the elastic force provided by the first top spring 805 is sufficient to ensure that the first pin 802 can be securely and elastically locked at the position where its head end is flush with the top end of the support seat 102 when the first push post 705 does not push the first limit seat 804 upward.

[0086] Example 2:

[0087] Considering that using only the first elastic ejector assembly 8 to eject the flared end face of the feed horn has the disadvantage of a single force-bearing surface, which can easily lead to uneven force distribution and workpiece deformation, this invention, based on embodiment one, also adds a second elastic ejector assembly 9, such as... Figure 11 , Figure 12 , Figure 13 and Figure 14 As shown;

[0088] The second elastic ejector assembly 9 can cooperate with the first elastic ejector assembly 8 to form a three-dimensional ejection operation for the feed speaker. The core 301 has a second ejector sliding hole 901 in the middle of its main body. The second ejector 902 is slidably connected in the second ejector sliding hole 901. The tower-shaped base 605 has a through hole that is directly opposite to the second ejector 902 in its main body. The bottom end of the second ejector 902 passes through the through hole in the tower-shaped base 605 and is fixed to the second limiting base 903.

[0089] The lower end of the main body of the hollow column 704 is provided with a second limiting groove 905, and the inner locking block 906 is fixed to the lower end of the second limiting groove 905 to prevent the hollow column 704 from deforming due to the opening of the second limiting groove 905.

[0090] The second limiting seat 903 is slidably connected in the second limiting slide groove 905. The second top spring 904 is sleeved on the outside of the hollow column 704, with one end locked to the top surface of the second limiting seat 903 and the other end locked to the bottom surface of the support seat 102, which is used to provide downward support elastic force for the second ejector pin 902 and the second limiting seat 903.

[0091] Similarly, the top of the second ejector pin 902 is also a matching conical frustum structure. The elastic force provided by the second ejector spring 904 is sufficient to ensure that the second ejector pin 902 can be safely and firmly locked in a position where the head end is flush with the top of the core 301 when the inner locking block 906 does not push the second limiting seat 903 upward.

[0092] The inner locking block 906 is positioned at the same height as the first push column 705 on the top moving plate 702. The bottom surface of the second limiting seat 903 extends relative to the support seat 102 at the same height as the bottom surface of the first limiting seat 804 extends relative to the support seat 102. This ensures that the movement of the top moving plate 702 drives the first push column 705 and the first limiting seat 804 to form a tight match with the inner locking block 906 and the second limiting seat 903. This enables the first ejector pin 802 and the second ejector pin 902 to perform a synchronous three-dimensional ejection operation.

[0093] This allows the second ejector pin 902 to simultaneously eject the remaining material from the gate end of the feed horn when the first ejector pin 802 ejects the feed horn after the insert 601 is retracted into place. This results in ejection of the feed horn at different spatial positions, improving the success rate of the feed horn separating from the core 301 after molding and protecting it from damage during the ejection process.

[0094] Furthermore, due to the high temperature of the die-casting environment, the materials used in the forming components of this device (such as the first clamping component 1, the second clamping component 2, the core seat component 3, and the cavity seat component 4) must possess excellent high-temperature strength, resistance to tempering softening, thermal fatigue resistance, and wear resistance. Hot work die steels such as 4Cr5MoSiV1 or 8407 are preferred. The compression spring 610, the first top spring 805, the second top spring 904, and other unlisted springs or elastic support components also need to possess excellent heat resistance, and their materials should be high-temperature alloy materials, such as 50CrVA spring steel.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A die-casting molding device for a feedhorn structure, comprising a first clamping member (1) and a second clamping member (2), characterized in that: It also includes a core seat component (3), a cavity seat component (4), a telescopic insert assembly (6), an ejector assembly (7), and a first elastic ejector pin assembly (8). The core seat component (3) includes a core (301), the cavity seat component (4) includes a cavity (401), the first clamping component (1) and the second clamping component (2) are movable toward each other, the core (301) is fixed to the middle of the inner side of the first clamping component (1), and the cavity (401) is fixed to the middle of the inner side of the second clamping component (2); The telescopic insert assembly (6) includes a tower-shaped base (605), the ejector assembly (7) includes a hollow column (704), the first elastic ejector assembly (8) includes a first limiting seat (804), an insert (601) is evenly slidably connected between the bottom end of the core (301) and the top end of the first clamping member (1), the tower-shaped base (605) is vertically disposed at the lower inner end of the core (301), a push slider (607) is obliquely fixed on the inner side of the top end of the insert (601), and push grooves (606) are evenly obliquely opened on the side of the tower-shaped base (605), and the push slider (607) on the same side slides... The first clamping member (1) is slidably connected to the push groove (606) and the inner cavity of the push plate (702). The hollow column (704) is fixed to the top center of the push plate (702) and is fixed to the bottom of the tower-shaped seat (605). The top of the push plate (702) is uniformly fixed with the hollow column (704). The first ejector pin (802) is uniformly and elastically slid downward in the top body of the first clamping member (1). The first limiting seat (804) is fixed to the bottom end of the first ejector pin (802), and the first limiting seat (804) on the same side is directly opposite the first push column (705).

2. The die-casting molding device for a feedhorn structure according to claim 1, characterized in that: The first clamping component (1) includes a first clamping plate (101), a support base (102) and a guide column (103). The bottom two sides of the support base (102) are fixed to the top of the first clamping plate (101), and the guide column (103) is evenly fixed to the top of the support base (102).

3. The die-casting molding device for a feedhorn structure according to claim 2, characterized in that: The second clamping component (2) includes a second clamping plate (201), which is arranged opposite to the first clamping plate (101). Guide slides (202) are uniformly fixedly installed in the main body of the second clamping plate (201). The guide slides (202) on the same side are slidably connected to the guide slides (103). The cavity (401) is fixedly connected to the bottom end of the second clamping plate (201). Cooling pipes (203) are connected in the main body of the support (102), the second clamping plate (201) and the cavity (401).

4. A die-casting device for a feedhorn structure according to any one of claims 1-3, characterized in that: The core component (3) also includes a main inner ridge groove (302), which is evenly opened on the outside of the second clamping plate (201).

5. The die-casting molding device for a feedhorn structure according to claim 3, characterized in that: The cavity component (4) also includes a cavity (402), which is located in the middle of the main body of the cavity (401). The cavity (401) and the middle of the main body of the second clamping plate (201) are together provided with a gating hole (404). The inner top of the cavity (402) is provided with a diversion channel (403) that communicates with the gating hole (404). The inlet of the gating hole (404) is connected to a casting seat (5). The outlet of the casting seat (5) is inserted into the gating hole (404) and then communicates with the diversion channel (403).

6. A die-casting device for a feedhorn structure according to claim 2, 3 or 5, characterized in that: The telescopic insert assembly (6) also includes an end inner ridge groove (602), a wedge block (603), and a moving slot (609). The end inner ridge groove (602) is provided on the outside of the insert (601). The wedge block (603) is fixed to the inner top of the insert (601). The push slider (607) is fixed to the inner end of the wedge block (603). The inner bottom of the core (301) is provided with a telescopic groove (604) that is compatible with the insert (601) and the telescopic groove (604). The top of the main body of the support base (102) is uniformly provided with guide grooves (611). The bottom end of the insert (601) is fixed with a guide slider (608). The guide slider (608) on the same side is slidably inserted into the guide groove (611). A compression spring (610) is connected between the guide slider (608) and the guide groove (611). A movable slot (609) is opened on the outer side of the guide slider (608). A fixed slot (612) is opened at the position opposite to the guide groove (611) and the movable slot (609). One end of the compression spring (610) is fixed in the movable slot (609), and the other end is fixed in the fixed slot (612).

7. A die-casting molding device for a feedhorn structure according to claim 2, 3 or 5, characterized in that: The ejection assembly (7) also includes an ejector guide seat (703). An ejector guide column (701) is uniformly fixed in the hollow structure between the first clamping plate (101) and the support seat (102). The ejector guide seat (703) is uniformly fixed in the main body of the ejector plate (702). The ejector guide seat (703) on the same side is slidably connected to the ejector guide column (701). A central sliding hole (707) is opened in the middle of the support seat (102). The hollow column (704) passes through the central sliding hole (707) and is fixed to the bottom end of the tower-shaped seat (605).

8. A die-casting device for a feedhorn structure according to claim 2, 3 or 5, characterized in that: The first elastic ejector assembly (8) also includes a first ejector sliding hole (801) and a first ejector spring (805). The first ejector sliding hole (801) is evenly opened in the main body of the support base (102). An extension slide (803) is evenly fixed at the bottom end of the support base (102). The position of the extension slide (803) on the same side is directly opposite to the first ejector sliding hole (801). The first ejector (802) on the same side is slidably connected to the first ejector sliding hole (801) and the extension slide (803). The first ejector spring (805) is sleeved on the outside of the first ejector (802), and one end is fixed to the bottom surface of the support base (102), and the other end is fixed to the top surface of the first limiting seat (804). The top end of the first ejector (802) and the top end of the first ejector sliding hole (801) are mutually matched conical frustum structures.

9. A die-casting molding device for a feedhorn structure according to claim 1, 2, 3 or 5, characterized in that: It also includes a second elastic ejector assembly (9), which includes a second ejector pin (902), a second limiting seat (903), a second ejector spring (904), and an inner locking block (906). The core (301) has a second ejector pin sliding hole (901) in the middle of its main body. The second ejector pin (902) is slidably connected in the second ejector pin sliding hole (901). The bottom end of the second ejector pin (902) passes through the through hole in the tower-shaped seat (605) and is fixed to the second limiting seat (903). The hollow column (704) The lower end of the main body is provided with a second limiting groove (905), the inner block (906) is fixed at the lower end of the second limiting groove (905), the second limiting seat (903) is slidably connected in the second limiting groove (905), the second top spring (904) is sleeved on the outside of the hollow column (704), and one end is fixed to the top surface of the second limiting seat (903), and the other end is fixed to the bottom surface of the support seat (102). The top end of the second pin (902) and the top end of the second pin (902) are also matching conical frustum structures.

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