An injection molding apparatus for manufacturing automotive door handle assemblies

Abstract

This utility model provides an injection molding device for producing automotive handlebar assemblies. The device includes: a base, with a guide post fixedly connected to the top surface of the base, and a mold closing mechanism fixedly installed at the top of the guide post; an upper ejector assembly mounted on the surface of the mold closing mechanism, with a guide buffer assembly fixedly installed at the bottom of the mold closing mechanism; and a lower mold fixedly mounted on the top surface of the base. The mold closing mechanism facilitates the closing of the upper and lower molds, and the hydraulic cylinder facilitates demolding of the upper and lower molds. During demolding, the cylinder pushes a fixedly connected extrusion post, which in turn moves a fixedly connected push plate. The push plate pushes the top of the automotive handlebar in the molding cavity downwards, and the hydraulic cylinder moves the upper mold base upwards for demolding, thus achieving the ejection of the automotive handlebar.

Description

Technical Field

[0001] This utility model relates to the technical field of injection molding equipment, and is an injection molding device for the production of automobile handle assembly. Background Technology

[0002] Injection molding is a highly efficient processing technology that injects molten plastic into a precision mold under high pressure and then cools and solidifies it to obtain the molded product. As one of the most widely used molding methods in modern manufacturing, car handles, as key components of automobiles, combine functionality, safety, and aesthetics. Their design, materials, and processes have continuously evolved with the development of the automotive industry.

[0003] In the prior art, during the injection molding process of car handles, the injection-molded car handles are prone to physical adhesion to the mold surface. If only the natural separation force of the mold opening and closing is relied upon, the car handle may be torn, deformed, or remain in the mold, affecting the use of the car handle. Utility Model Content

[0004] This invention addresses the technical problem that injection-molded car handlebars easily form physical adhesion to the mold surface, and that relying solely on the natural separation force of mold opening and closing may lead to tearing, deformation, or residue within the mold, affecting the use of the car handlebars. Therefore, this invention provides an injection molding device for producing car handlebar assemblies.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides an injection molding apparatus for producing automotive handlebar assemblies, the injection molding apparatus comprising:

[0007] A base, wherein a guide post is fixedly connected to the top side surface of the base, and a mold closing mechanism is fixedly installed at the top of the guide post;

[0008] An upper ejection assembly is mounted on the surface of a mold closing mechanism, and a guide buffer assembly is fixedly mounted at the bottom end of the mold closing mechanism;

[0009] The lower mold is fixedly installed on the top side surface of the base, and a lower ejection mechanism is installed on the surface of the lower mold.

[0010] Furthermore, supports are fixedly installed at the four corners of the bottom surface of the base, and guide columns are fixedly installed at the four corners of the top surface of the base.

[0011] Furthermore, the mold closing mechanism includes a hydraulic cylinder, an upper mold base, an upper mold, a casting cavity, and a sealing seat. The hydraulic cylinder is fixedly installed on the top side of the connecting plate at the top of the guide column. The output end of the hydraulic cylinder is fixedly connected to the upper mold base. The upper mold is fixedly connected to the bottom surface of the upper mold base. A forming cavity is opened on the bottom surface of the upper mold. The top side of the forming cavity is connected to the casting cavity opened on the top side of the upper mold base, and a sealing seat is provided at the top of the casting cavity.

[0012] Furthermore, four guide pillars are provided through the surface of the upper mold base, and the four guide pillars are located at the four corner positions of the upper mold base surface.

[0013] Furthermore, the upper ejection assembly includes a cylinder, an extrusion column, and a push plate. The cylinder is fixedly installed on the top side surface of the upper mold base, the output end of the cylinder is fixedly connected to the extrusion column, and the bottom end of the extrusion column is fixedly connected to the push plate.

[0014] Furthermore, the push plate is slidably connected to the inner cavity at the top of the forming cavity, and the surface of the push plate is provided with a through hole that matches and communicates with the bottom end of the casting cavity.

[0015] Furthermore, the guide buffer assembly includes a guide rod, a slide block, a connecting column, a buffer spring, and a buffer seat. The guide rod is fixedly connected to the bottom side surface of the lower mold. The slide block is slidably connected to the inner cavity of the bottom end of the guide rod. The connecting column is fixedly connected to the bottom side of the slide block. A buffer seat is installed at the bottom end of the connecting column, and a buffer spring is sleeved at the bottom end of the buffer column.

[0016] Furthermore, the bottom surface of the buffer seat is threaded with a connecting bolt, the end of which penetrates the surface of the buffer seat and is threaded to the bottom of the guide rod, and the top side of the buffer seat is elastically connected to the bottom of the guide rod through a buffer spring.

[0017] Furthermore, the ejection mechanism includes an electric push rod and an ejection plate. The electric push rod is fixedly installed on the bottom side of the base, and the output end of the electric push rod is fixedly connected to the ejection plate.

[0018] Furthermore, the ejector plate is slidably connected to the inner cavity of the lower mold surface, and the ejector plate is disposed on the inner wall of the bottom end of the forming cavity of the lower mold.

[0019] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0020] The positive and progressive effects of this utility model are as follows:

[0021] The aforementioned injection molding device for producing automotive handlebar assemblies features a mold-closing mechanism that enables the upper and lower molds to close. A hydraulic cylinder facilitates demolding of the upper and lower molds, making operation convenient. During demolding, the cylinder pushes a fixedly connected extrusion column, which in turn moves a fixedly connected push plate. The push plate pushes the top of the automotive handlebar within the molding cavity downwards, and the hydraulic cylinder moves the upper mold base upwards for demolding, thus achieving the ejection of the automotive handlebar. A guide buffer assembly facilitates connection between the buffer seat and the bottom of the guide rod for secure fixing. During mold closing, the bottom of the guide rod inserts into the inner cavity of the top of the lower mold, where a buffer seat and a buffer spring provide cushioning, effectively buffering the merging of the upper and lower molds, reducing damage during mold closing, and ensuring the mold's service life. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application 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 only some embodiments of this application.

[0023] Figure 1 This is a three-dimensional structural diagram of the injection molding device of this utility model.

[0024] Figure 2 This is a front sectional view of the injection molding device of this utility model.

[0025] Figure 3 This utility model relates to an injection molding device. Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0026] Figure 4 This is a bottom-view three-dimensional structural diagram of the injection molding device of this utility model.

[0027] Explanation of reference numerals in the attached figures

[0028] 1. Base; 2. Guide column; 3. Support; 4. Mold closing mechanism; 41. Hydraulic cylinder; 42. Upper mold base; 43. Upper mold; 44. Casting cavity; 45. Sealing seat; 5. Molding cavity; 6. Upper ejection assembly; 61. Cylinder; 62. Extrusion column; 63. Push plate; 7. Guide buffer assembly; 71. Guide rod; 72. Slide; 73. Connecting column; 74. Buffer spring; 75. Buffer seat; 76. Connecting bolt; 8. Lower mold; 9. Lower ejection mechanism; 91. Electric push rod; 92. Ejection plate. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0032] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0033] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0035] like Figure 1-4 As shown, the injection molding apparatus for producing the automotive door handle assembly includes:

[0036] A base 1, wherein a guide post 2 is fixedly connected to the top side surface of the base 1, and a mold closing mechanism 4 is fixedly installed at the top of the guide post 2;

[0037] Upper ejection component 6 is mounted on the surface of mold closing mechanism 4, and a guide buffer component 7 is fixedly mounted at the bottom end of mold closing mechanism 4;

[0038] The lower mold 8 is fixedly installed on the top side surface of the base 1, and the lower mold 8 is equipped with a lower ejection mechanism 9.

[0039] Supports 3 are fixedly installed at the four corners of the bottom surface of the base 1, and guide columns 2 are fixedly installed at the four corners of the top surface of the base 1.

[0040] The mold closing mechanism 4 includes a hydraulic cylinder 41, an upper mold base 42, an upper mold 43, a casting cavity 44, and a sealing seat 45. The hydraulic cylinder 41 is fixedly installed on the top side of the connecting plate at the top of the guide column 2. The output end of the hydraulic cylinder 41 is fixedly connected to the upper mold base 42. The upper mold 43 is fixedly connected to the bottom surface of the upper mold base 42. A forming cavity 5 is opened on the bottom surface of the upper mold 43. The top side of the forming cavity 5 is connected to the casting cavity 44 opened on the top side of the upper mold base 42, and a sealing seat 45 is provided at the top of the casting cavity 44.

[0041] Start the hydraulic cylinder 41, which pushes the fixedly connected upper mold base 42 to move. The upper mold base 42 drives the fixedly connected upper mold 43 to move. The upper mold 43 moves down and fits with the corresponding upper mold 43 on the bottom side, realizing the mold closing of the upper mold 43 and the lower mold 8. Under the action of the hydraulic cylinder 41, it is convenient to demold the upper mold 43 and the lower mold 8, making the operation convenient.

[0042] Four guide posts 2 are penetrating the surface of the upper mold base 42, and the four guide posts 2 are located at the four corner positions of the surface of the upper mold base 42.

[0043] The upper ejection assembly 6 includes a cylinder 61, an extrusion column 62, and a push plate 63. The cylinder 61 is fixedly installed on the top side surface of the upper mold base 42. The output end of the cylinder 61 is fixedly connected to the extrusion column 62, and the bottom end of the extrusion column 62 is fixedly connected to the push plate 63.

[0044] During demolding, cylinder 61 is activated, which pushes the fixedly connected extrusion column 62 to move. The extrusion column 62 drives the fixedly connected push plate 63 to move. The push plate 63 facilitates the downward pushing of the top of the car handle in the molding cavity 5, and also facilitates the hydraulic cylinder 41 to drive the upper mold base 42 to move upward for demolding, thereby realizing the separation of the car handle and achieving the ejection effect of the car handle.

[0045] The push plate 63 is slidably connected to the inner cavity at the top of the forming cavity 5, and the surface of the push plate 63 is provided with a through hole that matches and communicates with the bottom end of the casting cavity 44.

[0046] The guide buffer assembly 7 includes a guide rod 71, a slide block 72, a connecting post 73, a buffer spring 74, and a buffer seat 75. The guide rod 71 is fixedly connected to the bottom side surface of the lower mold 8. The slide block 72 is slidably connected to the inner cavity of the bottom end of the guide rod 71. The connecting post 73 is fixedly connected to the bottom side of the slide block 72. The buffer seat 75 is installed at the bottom end of the connecting post 73, and the buffer spring 74 is sleeved at the bottom end of the buffer post.

[0047] The bottom surface of the buffer seat 75 is threaded with a connecting bolt 76. The end of the connecting bolt 76 passes through the surface of the buffer seat 75 and is threaded to the bottom of the guide rod 71. The top side of the buffer seat 75 is elastically connected to the bottom of the guide rod 71 through a buffer spring 74.

[0048] Rotary connecting bolt 76 facilitates the connection between buffer seat 75 and the bottom end of guide rod 71 for easy fixation. During the mold closing process of upper mold 43 and lower mold 8, the bottom end of guide rod 71 is inserted into the inner cavity of the top end of lower mold 8. Buffer seat 75 and buffer spring 74 provide cushioning, effectively buffering the merging of upper mold 43 and lower mold 8, reducing damage during the mold closing process, ensuring the service life of the mold, and meeting usage requirements.

[0049] The ejection mechanism includes an electric push rod 91 and an ejection plate 92. The electric push rod 91 is fixedly installed on the bottom side of the base 1, and the output end of the electric push rod 91 is fixedly connected to the ejection plate 92.

[0050] Start the electric push rod 91, which pushes the fixedly connected ejector plate 92 to move. The ejector plate 92 pushes the bottom of the car handle upward, realizing the automatic removal of the car handle and improving the ejection and demolding effect.

[0051] The ejector plate 92 is slidably connected to the inner cavity of the lower mold 8, and the ejector plate 92 is disposed on the inner wall of the bottom end of the forming cavity 5 of the lower mold 8.

[0052] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.

[0053] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. An injection molding apparatus for manufacturing automotive door handle assemblies, characterized in that, The injection molding apparatus for producing automotive door handle assemblies includes: A base (1) is fixedly connected to a guide post (2) on the top side surface of the base (1), and a mold closing mechanism (4) is fixedly installed at the top of the guide post (2). Upper ejection assembly (6) is mounted on the surface of mold closing mechanism (4), and a guide buffer assembly (7) is fixedly mounted at the bottom of mold closing mechanism (4). The lower mold (8) is fixedly installed on the top side surface of the base (1), and the lower mold (8) is equipped with a lower ejection mechanism (9).

2. The injection molding device for producing an automotive handle assembly as claimed in claim 1, characterized in that: Supports (3) are fixedly installed at the four corners of the bottom surface of the base (1), and guide columns (2) are fixedly installed at the four corners of the top surface of the base (1).

3. The injection molding apparatus for producing an automobile handle assembly as claimed in claim 1, wherein: The mold closing mechanism (4) includes a hydraulic cylinder (41), an upper mold base (42), an upper mold (43), a casting cavity (44), and a sealing seat (45). The hydraulic cylinder (41) is fixedly installed on the top side of the connecting plate at the top of the guide column (2). The output end of the hydraulic cylinder (41) is fixedly connected to the upper mold base (42). The upper mold (43) is fixedly connected to the bottom surface of the upper mold base (42). A forming cavity (5) is opened on the bottom surface of the upper mold (43). The top side of the forming cavity (5) is connected to the casting cavity (44) opened on the top side of the upper mold base (42). A sealing seat (45) is provided at the top of the casting cavity (44).

4. The injection molding apparatus for producing an automobile handle assembly as claimed in claim 3, wherein: The upper mold base (42) has four guide posts (2) running through its surface, and the four guide posts (2) are located at the four corners of the upper mold base (42).

5. The injection molding apparatus for producing an automotive handle assembly as claimed in claim 1, wherein: The upper ejection assembly (6) includes a cylinder (61), an extrusion column (62) and a push plate (63). The cylinder (61) is fixedly installed on the top side surface of the upper mold base (42). The output end of the cylinder (61) is fixedly connected to the extrusion column (62), and the bottom end of the extrusion column (62) is fixedly connected to the push plate (63).

6. The injection molding apparatus for producing an automotive handle assembly as claimed in claim 5, wherein: The push plate (63) is slidably connected to the inner cavity at the top of the forming cavity (5), and the surface of the push plate (63) is provided with a through hole that matches and communicates with the bottom end of the casting cavity (44).

7. The injection molding device for producing an automotive handle assembly as claimed in claim 1, characterized in that: The guide buffer assembly (7) includes a guide rod (71), a slide (72), a connecting column (73), a buffer spring (74), and a buffer seat (75). The guide rod (71) is fixedly connected to the bottom surface of the lower mold (8). The slide (72) is slidably connected to the inner cavity of the bottom end of the guide rod (71). The connecting column (73) is fixedly connected to the bottom side of the slide (72). The buffer seat (75) is installed at the bottom end of the connecting column (73), and the buffer spring (74) is sleeved at the bottom end of the buffer column.

8. The injection molding apparatus for producing an automotive handle assembly as claimed in claim 7, wherein: The bottom surface of the buffer seat (75) is threaded with a connecting bolt (76). The end of the connecting bolt (76) passes through the surface of the buffer seat (75) and is threaded to the bottom of the guide rod (71). The top side of the buffer seat (75) is elastically connected to the bottom of the guide rod (71) through a buffer spring (74).

9. The injection molding apparatus for producing automotive handle assemblies as described in claim 1, characterized in that: The ejection mechanism includes an electric push rod (91) and an ejection plate (92). The electric push rod (91) is fixedly installed on the bottom side of the base (1), and the output end of the electric push rod (91) is fixedly connected to the ejection plate (92).

10. The injection molding apparatus for producing automotive handle assemblies as described in claim 9, characterized in that: The ejector plate (92) is slidably connected to the inner cavity of the lower mold (8), and the ejector plate (92) is set on the inner wall of the bottom end of the forming cavity (5) of the lower mold (8).

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