Forming die structure of square antenna shell

Abstract

The utility model discloses a forming die structure of a square antenna shell, which is characterized in that a first cavity and a glue inlet runner are arranged on a die stripper plate, the glue inlet runner is communicated with a glue inlet barrel outside the stripper plate, a movable die core is provided with a second cavity, two X-direction sides and Y-direction sides of the second cavity are respectively provided with a core component, and each core component is provided with a second core. According to the utility model, the glue inlet barrel is arranged beside the water gap plate, and the slag ladle and the air channel are arranged on the water gap plate and the movable mold core, so that gas and foreign matters in the cavity can be flushed to the outer side of the cavity in the process of injecting glue into the cavity, poor injection molding of a plastic part is avoided or reduced, and the appearance quality and the internal strength of the plastic part are ensured; the mold core assemblies below the glue inlet barrel are independently driven by the linear motion driving device, so that the phenomenon that the mold is stuck due to synchronous linkage of the fixed mold plate and the multiple mold core assemblies in the mold closing process can be avoided or reduced, the sliding seat below the glue inlet barrel can be ensured to slide stably, the influence of vibration on glue liquid in the glue inlet barrel is reduced, and the production efficiency is improved. And the injection molding efficiency and the yield are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, in particular to a molding mold structure of a square antenna shell. Background Art

[0002] Some square antenna shells are provided with a bottom shell and four side walls connected and enclosed therewith, and each side wall is provided with a plurality of straight holes and slots for assembling the antenna. In this product, the bottom shell is the main appearance surface, and the straight holes and slots on the side walls are functional structures. The draft bevels that appear in conventional designs cannot appear. Therefore, there are several design difficulties when designing its molding mold: one is the setting of the glue inlet. If the glue inlet is set on the inner wall of the bottom shell, the injection defects will almost all be concentrated on the side walls, which will most likely affect the mechanical strength of the straight holes and slots, and thus affect the function of the product. However, if the glue inlet is set on the side wall, the bottom shell or side wall far away from the glue inlet will be more prone to white spots, bubbles and other undesirable phenomena, affecting the appearance of the product. The second is the setting of multiple side core pulls. Most conventional designs use During the mold closing process, the relative movement of the movable and fixed molds drives the diagonal brace to push the core into or out of the cavity from the side. However, in this product, the product has a square structure with high-precision straight holes and grooves on its four walls. In actual operation, one mold closing action simultaneously pushes the four cores to move precisely in four directions through the diagonal brace, which can easily cause the mold to get stuck. However, if a draft angle is set on each core, the mold jamming phenomenon can be avoided or reduced, but there will be draft bevels on the inner walls of the holes and grooves on the side walls. CNC processing is required after molding to remove these bevels and form a straight inner wall, which is time-consuming and labor-intensive, and it is difficult to improve production efficiency and has a high production cost. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a molding mold structure for a square antenna shell, which can flush the gas and foreign matter in the cavity to the outside of the cavity during the process of injecting glue into the cavity, thereby avoiding or reducing poor injection molding of plastic parts, ensuring the appearance quality and internal strength of the plastic parts, and avoiding or reducing the mold jamming phenomenon caused by the synchronous linkage of the fixed template and multiple core assemblies during the mold closing process. It can also ensure that the slide seat under the glue feed barrel can slide smoothly, reduce the impact of vibration on the glue in the glue feed barrel, and ensure injection molding efficiency and yield rate.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is as follows:

[0005] A forming mold structure of a square antenna shell, a fixed mold and a movable mold are provided on the mold, a mold plate is provided on the fixed mold, and a movable mold plate and an ejector assembly are provided on the movable mold; wherein,

[0006] The fixed mold plate is embedded with a glue feed barrel and a nozzle plate, the nozzle plate is arranged beside the glue feed barrel, and the end of the nozzle plate facing the movable mold plate is provided with a first mold cavity and a glue feed channel that are connected, the glue feed channel is arranged beside the glue feed barrel and connected thereto, and a first mold core that is adapted to the inner wall of the product is formed inside the first mold cavity;

[0007] A movable mold core adapted to the nozzle plate is embedded on the movable mold plate, a second mold cavity adapted to the first mold cavity and the first mold core is formed on the end of the movable mold core facing the fixed mold, a core assembly is slidably mounted on both sides of the X direction and both sides of the Y direction of the movable mold core, and each of the core assemblies is provided with one or more second mold cores at the end facing the movable mold core, each of the second mold cores passes through the movable mold core and extends to the side of the second mold cavity, and each of the core assemblies can slide on the movable mold plate under the action of an external force to approach or move away from the movable mold core, and synchronously drive a plurality of the second mold cores to enter or leave the second mold cavity;

[0008] The ejector assembly includes an ejector plate and a plurality of ejectors mounted thereon and extending along the mold opening direction, each of the ejectors passes through the movable mold core and extends to the lower end of the second cavity, and the ejector plate can translate along the mold opening direction on the movable mold under the action of an external force to drive the plurality of ejectors to move synchronously to eject the product from the second cavity.

[0009] As a further elaboration of the above technical solution:

[0010] In the above technical scheme, one of the core assemblies is arranged below the glue feeding barrel and is transmission-connected to a linear motion driving device, and the other three core assemblies are transmission-connected to an inclined brace respectively, and each of the inclined braces is slidably connected to one of the core assemblies, one end of which obliquely passes through one of the core assemblies and is slidably connected to the movable mold plate, and the other end extends to the outside of the core assembly and obliquely extends toward the middle of the fixed mold plate; the inclined brace can slide relative to the fixed mold plate and the movable mold plate respectively during mold closing and mold opening to drive the core assembly to approach or move away from the movable mold core.

[0011] In the above technical solution, each of the core assemblies includes a slide and one or more second cores mounted on one side wall thereof: each of the slides is slidably connected to the movable mold plate, and is provided with a first through hole or a positioning groove, the first through hole is adapted to an inclined brace and obliquely passes through the slide, the positioning groove is provided on the side wall of the slide away from the movable mold core, and is adapted to the output end of the linear motion drive device; the end of each of the second cores is a columnar structure and is arranged perpendicular to the second cavity.

[0012] In the above technical solution, each of the core assemblies also includes a pull rod, one of the pull rods is mechanically or electrically connected to the output end of the linear motion drive device to limit an initial position of the slide, and one end of the other three pull rods passes through the movable template and extends to its outside, and a return spring is provided on the pull rod located on the outside of the movable template.

[0013] In the above technical solution, the movable template is provided with a plurality of slideways which can be matched with the diagonal braces one by one, and each of the slideways extends along the X direction or the Y direction.

[0014] In the above technical solution, the fixed template is provided with a plurality of second through holes which can be matched one by one with the diagonal braces.

[0015] In the above technical solution, a plurality of first slag bags are provided on the sprue plate on the periphery of the first cavity, and a plurality of second slag bags are provided on the movable mold core on the periphery of the second cavity. The plurality of second slag bags and the plurality of first slag bags can be matched and connected one by one when the molds are closed. Each of the first slag bags and the second slag bags are connected to the first cavity or the second cavity, and are respectively connected to an air duct, and each of the air ducts is connected to a ventilation channel provided on the fixed mold or the movable mold.

[0016] Each of the first slag bag 54 and the second slag bag 62 is connected to the first cavity 51 or the second cavity 61, and is connected to an air channel 110. Each air channel 110 is connected to a ventilation channel provided on the fixed mold or the movable mold.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: by arranging the glue feed barrel beside the nozzle plate and connecting it with the cavity arranged on the nozzle plate through the glue feed flow channel, and at the same time arranging a plurality of matching slag bags and air channels on the nozzle plate and the movable mold core, the gas and foreign matter in the cavity can be flushed to the outside of the cavity during the process of injecting the glue into the cavity, thereby avoiding or reducing the defects such as black spots, white spots, bubbles or material shortage on the plastic parts, and ensuring the appearance quality and internal mechanical strength of the plastic parts; by slidingly installing the core assemblies on the outside of the four walls of the square cavity, the forming of the straight functional holes and grooves on the four walls can be realized synchronously through the straight side core pulling action, and at the same time, by arranging the core assembly under the glue feed barrel to be driven by a linear motion drive device alone, not only can the mold jamming phenomenon caused by the synchronous linkage of the fixed mold plate and multiple core assemblies during the mold closing process be avoided or reduced, but also the slide seat under the glue feed barrel can be ensured to slide smoothly, reducing the influence of vibration on the glue in the glue feed barrel, and ensuring the injection molding efficiency and yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the decomposed structure of this embodiment;

[0019] Figure 2Schematic diagram of the structure of the nozzle plate in this embodiment;

[0020] Figure 3 It is a structural schematic diagram of the movable template in this embodiment;

[0021] Figure 4 Schematic diagram of the structure of the movable mold core in this embodiment;

[0022] Figure 5 It is a structural schematic diagram of a core assembly in this embodiment.

[0023] In the figure: 10, fixed mold plate; 11, second through hole; 20, movable mold plate; 30, ejector pin assembly; 31, ejector pin plate; 32, ejector pin; 40, glue feed barrel; 50, sprue plate; 51, first cavity; 52, glue feed channel; 53, first core; 54, first slag bag; 60, movable mold core; 61, second cavity; 62, second slag bag; 70, core assembly; 71, second core; 72, slide; 73, pull rod; 80, linear motion drive device; 90, diagonal support; 100, return spring; 110, airway; 1, first through hole; 2, positioning groove; 3, slideway. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] The embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and cannot be understood as limiting the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "several" and "multiple" mean two or more, unless otherwise clearly and specifically defined. In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In this application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature can include the first and second features being in direct contact, or it can include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] like Figure 1 As shown, a molding die structure of a square antenna shell is provided. The die has a fixed die and a movable die. The fixed die has a set die plate 10, and the movable die plate 20 and an ejector assembly 30 are provided on the movable die.

[0027] like Figure 1 , 2As shown, a glue feed barrel 40 and a sprue plate 50 are embedded on the fixed mold plate 10. The sprue plate 50 is arranged beside the glue feed barrel 40. The end thereof facing the movable mold plate 20 is provided with a connected first cavity 51 and a glue feed channel 52. The glue feed channel 52 is arranged beside the glue feed barrel 40 and is connected thereto. A first core 53 adapted to the inner wall of the product is formed on the inner side of the first cavity 51.

[0028] like Figure 1 , 3 As shown in Figures 4 and 5, a movable mold core 60 adapted to the sprue plate 50 is embedded on the movable mold plate 20, and a second cavity 61 adapted to the first cavity 51 and the first core 53 is formed on the end of the movable mold core 60 facing the fixed mold, and a core assembly 70 is slidably installed on both sides of the X direction and both sides of the Y direction of the movable mold core 60, and each core assembly 70 is provided with one or more second cores 71 at the end facing the movable mold core 60, and each second core 71 passes through the movable mold core 60 and extends to the side of the second cavity 61. Each core assembly 70 can slide on the movable mold plate 20 under the action of external force to move away from or approach the movable mold core 60, and synchronously drive a plurality of second cores 71 to enter or leave the second cavity 61.

[0029] like Figure 5 As shown, in this embodiment, a core assembly 70 is arranged below the glue feeding barrel 40 and is transmission-connected to a linear motion driving device 80, and the other three core assemblies 70 are transmission-connected to an inclined support 90 respectively, and each inclined support 90 is slidably connected to a core assembly 70, one end of which obliquely passes through a core assembly 70 and is slidably connected to the movable template 20, and the other end extends to the outside of the core assembly 70 and obliquely extends toward the middle of the fixed template 10. The inclined support 90 can slide relative to the fixed template 10 and the movable template 20 respectively during mold closing and mold opening to drive the core assembly 70 to approach or move away from the movable mold core 60; each core assembly 70 includes a slide seat 72 and one or more second cores 71 mounted on one side wall thereof: each slide The seats 72 are all slidably connected to the movable mold plate 20, and are provided with a first through hole 1 or a positioning groove 2. The first through hole 1 is adapted to a diagonal support 90 and obliquely penetrates the slide 72. The positioning groove 2 is arranged on the side wall of the slide 72 away from the movable mold core 60, and is adapted to the output end of the linear motion drive device 80; the end of each second core 71 is a columnar structure and is vertically arranged with the second cavity 61; each core assembly 70 also includes a pull rod 73, a pull rod 73 is mechanically or electrically connected to the output end of the linear motion drive device 80 to limit the initial position of a slide 72, and one end of the other three pull rods 73 passes through the movable mold plate 20 and extends to its outside, and a reset spring 100 is sleeved on the pull rod 73 located on the outside of the movable mold plate 20.

[0030] In this embodiment, if Figure 3As shown, the movable template 20 is provided with a plurality of slideways 3 that can be matched with the diagonal braces 90 one by one, and each slideway 3 extends along the X direction or the Y direction; Figure 1 As shown, the fixed template 10 is provided with a plurality of second through holes 11 which can be matched with the diagonal braces 90 one by one.

[0031] During the mold closing process, the movable mold moves toward the fixed mold, and the three diagonal braces 90 first contact the fixed mold plate 10 and slide into the second through hole 11. Under the reaction of the fixed mold plate 10, the diagonal braces 90 slide in the second through hole 11 and push the slide 72 on the movable mold plate 20 to slide toward the movable mold core 60. The second core 71 on the slide 72 enters the second cavity 61 and simultaneously pulls the pull rod 73 to move synchronously to press the reset spring 100 against the side wall of the movable mold plate 20. In addition, the linear motion drive device 80 drives the slide 72 under the glue feeding barrel 40 to move toward the movable mold core 60 and pushes the second core 71 thereon into the second cavity 61. After the second cores 71 in the four directions are all pushed into place, injection molding can be performed. After the injection molding is completed, the movable mold leaves the fixed mold, the reset spring 100 pushes the slide 72 to reset, and the second core 71 thereon exits the second cavity 61 , and the linear motion drive device 80 drives a slide 72 to reset and pull the second core 71 thereon out of the second cavity 61 .

[0032] In this embodiment, if Figure 2 , 4 As shown, the nozzle plate 50 is further provided with a plurality of first slag bags 54 on the periphery of the first cavity 51, and the movable mold core 60 is further provided with a plurality of second slag bags 62 on the periphery of the second cavity 61. The plurality of second slag bags 62 and the plurality of first slag bags 54 can be matched and connected one by one when the molds are closed. Each of the first slag bags 54 and the second slag bags 62 are connected to the first cavity 51 or the second cavity 61, and are connected to an air channel 110. Each air channel 110 is connected to a ventilation channel provided on the fixed mold or the movable mold.

[0033] During injection molding, the glue liquid enters the cavity formed by the first cavity 51, the first core 53, the second cavity 61 and the second core 71 from the outside of the side wall through the glue feeding barrel 40 and the glue feeding container 52. The glue liquid pushes the air in the cavity and the release agent and other substances on the cavity wall to the end of the cavity and pushes them into the slag bag. The air is discharged from the mold through the airway 110 to prevent gas and foreign matter from being squeezed and mixed into the glue liquid, resulting in white spots, black spots, bubbles or insufficient glue injection on the surface or inside of the plastic part.

[0034] In this embodiment, after the mold is closed, at least one slag bag and air channel 110 are formed on the gate plate 50 and the movable mold core 60 on the outer side of the square cavity away from the side wall connected to the glue inlet channel 52, ensuring that the slag and air accumulated at the confluence of the glue and liquid can be discharged from the cavity in time.

[0035] like Figure 1As shown, the ejector assembly 30 includes an ejector plate 31 and a plurality of ejector pins 32 mounted thereon and extending along the mold opening direction. Each ejector pin 32 passes through the movable mold core 60 and extends to the lower end of the second cavity 61. The ejector plate 31 can translate along the mold opening direction on the movable mold under the action of an external force to drive the plurality of ejector pins 32 to move synchronously to eject the product from the second cavity 61.

[0036] The utility model arranges the glue feeding barrel 40 beside the nozzle plate 50 and communicates with the cavity arranged on the nozzle plate 40 through the glue feeding flow channel 52, and arranges a plurality of matching slag bags and air channels 110 on the nozzle plate 50 and the movable mold core 60, so that the gas and foreign matter in the cavity can be flushed to the outside of the cavity during the process of injecting glue into the cavity, thereby avoiding or reducing the defects such as black spots, white spots, bubbles or lack of material on the plastic part, and ensuring the appearance quality and internal mechanical strength of the plastic part; by sliding on the outside of the four walls of the square cavity By installing the core assembly 70, the straight functional holes and grooves on the four walls can be synchronously formed through a straight side core pulling action. At the same time, by setting the core assembly 70 below the glue feeding barrel 40 to be driven by a linear motion drive device 90 alone, not only can the mold jamming phenomenon caused by the synchronous linkage of the fixed mold plate 10 and multiple core assemblies 70 during the mold closing process be avoided or reduced, but it can also ensure that the slide seat 72 below the glue feeding barrel 40 can slide smoothly, reduce the impact of vibration on the glue in the glue feeding barrel, and ensure injection molding efficiency and yield rate.

[0037] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A molding die structure for a square antenna shell, wherein a fixed die and a movable die are arranged on the die, a platen is arranged on the fixed die, and a movable die plate and an ejector assembly are arranged on the movable die; characterized in that : The fixed mold plate is embedded with a glue feed barrel and a nozzle plate, the nozzle plate is arranged beside the glue feed barrel, and a first mold cavity and a glue feed channel are arranged on the end of the fixed mold plate facing the movable mold plate, the glue feed channel is arranged beside the glue feed barrel and is connected thereto, and a first mold core adapted to the inner wall of the product is formed inside the first mold cavity; A movable mold core adapted to the nozzle plate is embedded on the movable mold plate, a second mold cavity adapted to the first mold cavity and the first mold core is formed on the end of the movable mold core facing the fixed mold, a core assembly is slidably mounted on both sides of the X direction and both sides of the Y direction of the movable mold core, and each of the core assemblies is provided with one or more second mold cores at the end facing the movable mold core, each of the second mold cores passes through the movable mold core and extends to the side of the second mold cavity, and each of the core assemblies can slide on the movable mold plate under the action of an external force to approach or move away from the movable mold core, and synchronously drive a plurality of the second mold cores to enter or leave the second mold cavity; The ejector assembly includes an ejector plate and a plurality of ejectors mounted thereon and extending along the mold opening direction, each of the ejectors passes through the movable mold core and extends to the lower end of the second cavity, and the ejector plate can translate along the mold opening direction on the movable mold under the action of an external force to drive the plurality of ejectors to move synchronously to eject the product from the second cavity.

2. The forming mold structure of a square antenna shell according to claim 1, characterized in that: One of the core assemblies is arranged below the glue feeding barrel and is transmission-connected to a linear motion driving device, and the other three core assemblies are transmission-connected to an inclined brace respectively, and each of the inclined braces is slidably connected to one of the core assemblies, one end of which obliquely passes through one of the core assemblies and is slidably connected to the movable mold plate, and the other end extends to the outside of the core assembly and obliquely extends toward the middle of the fixed mold plate; the inclined brace can slide relative to the fixed mold plate and the movable mold plate respectively during mold closing and mold opening, so as to drive the core assembly to approach or move away from the movable mold core.

3. The forming mold structure of a square antenna shell according to claim 2, characterized in that: Each of the core assemblies comprises a slide and one or more second cores mounted on one side wall thereof: each of the slides is slidably connected to the movable mold plate, and is provided with a first through hole or a positioning groove, the first through hole is adapted to an inclined support and obliquely penetrates the slide, the positioning groove is provided on the side wall of the slide away from the movable mold core, and is adapted to the output end of the linear motion drive device; the end of each of the second cores is a columnar structure and is vertically arranged with the second cavity.

4. The forming mold structure of a square antenna shell according to claim 3, characterized in that: Each of the core assemblies further includes a pull rod, one of the pull rods being mechanically or electrically connected to the output end of the linear motion drive device to define an initial position of the slide seat, one end of the other three pull rods passing through the movable template and extending to its outside, and a return spring is sleeved on the pull rods located on the outside of the movable template.

5. The forming mold structure of a square antenna shell according to claim 2, characterized in that: The movable template is provided with a plurality of slideways which can be matched with the diagonal braces one by one, and each of the slideways extends along the X direction or the Y direction.

6. The forming mold structure of a square antenna housing according to claim 2, characterized in that: The fixed template is provided with a plurality of second through holes which can be matched one by one with the diagonal braces.

7. A forming mold structure for a square antenna housing according to any one of claims 1 to 6, characterized in that: A plurality of first slag bags are provided on the gate plate on the periphery of the first cavity, and a plurality of second slag bags are provided on the movable mold core on the periphery of the second cavity. The plurality of second slag bags and the plurality of first slag bags can be matched and connected one by one when the molds are closed. Each of the first slag bags and the second slag bags is connected to the first cavity or the second cavity, and is respectively connected to an air channel, and each of the air channels is connected to a ventilation channel provided on the fixed mold or the movable mold.

Images