A vertical injection molding apparatus for a vehicle door panel

Abstract

The application provides a vertical injection molding equipment for a vehicle door panel, which is based on the structure of an existing vertical injection molding machine, and the lower mold platform originally fixed on the die position platform of the equipment is optimized, and a lower mold group with a position capable of fine adjustment is installed and connected, the structure of which comprises a sliding adjustment mechanism, which is arranged on the fixed injection molding rack in a slidable and adjustable manner, the upper end of the sliding adjustment mechanism is installed with an upper mold group, and the lower end is in position slidable adjustment with the injection molding rack, through the structure, the position of the lower mold group relative to the injection molding rack, namely the upper mold group, can be finely adjusted, the die closing alignment effect between the upper mold and the lower mold is better, and the technical problem that the existing vertical injection molding equipment for vehicle door forming has strong die position fixity and causes size and quality deviation of products is effectively solved.

Description

A vertical injection molding machine for vehicle door panels Technical Field

[0001] This invention relates to the field of vehicle equipment technology, and more specifically, to a vertical injection molding machine for vehicle door panels. Background Technology

[0002] Injection molding machines are the main molding equipment used to mold thermoplastic or thermosetting plastics into various shapes of plastic products using plastic molds. Existing large-scale equipment used for molding car doors has a large mold opening and closing stroke, resulting in a large overall machine size and excessive length in all directions. This makes operation unsafe and inconvenient for employees. In addition, the machine is limited by the height of the factory building, making it inconvenient to use.

[0003] The vertical injection molding machine is designed to inject molten raw material into a vertically opening and closing mold cavity to form a fixed shape. After cooling and solidification, a preliminary product is obtained. The normal molding process generally involves the following steps: feeding, mold closing, mold locking, injection, pressure holding, and cooling. Vertical injection molding machines are widely used by users due to their advantages such as small footprint, convenient feeding, easy molding, high stability, and simple structure.

[0004] Existing vertical injection molding machines typically involve mounting a lower mold on a molding table and an upper mold on the linear feed end connected to the hydraulic components. After mold closing, the injection substrate is injected to complete the subsequent injection molding process. However, due to the molding requirements of large, integral workpieces such as car door blanks, even vertical injection molding equipment still suffers from large overall dimensions, making manual operation difficult, especially mold replacement and installation. Furthermore, because the mold is fixed in place after installation, fine-tuning is difficult. Any deviation in mold installation position is hard to correct, leading to dimensional inconsistencies in the molded product and poor molding quality.

[0005] In summary, existing vertical injection molding equipment for vehicle door molding has a technical problem: the mold position is highly fixed, which makes the product prone to dimensional and quality deviations. Summary of the Invention

[0006] The technical problem to be solved by the present invention is that the existing vertical injection molding equipment used for vehicle door molding has a strong fixed mold position, which makes the product prone to dimensional and quality deviations.

[0007] To address the aforementioned problems, this invention provides a vertical injection molding machine for vehicle door panels, comprising an injection molding stand, a mold lifting device, and an injection device located on one side of the mold lifting device for injecting molding material into the mold after mold closing. The injection molding stand is used to mount and fix the lower mold assembly, and the mold lifting device is used to mount the upper mold assembly and drive the upper mold to open and close by outputting a vertical feed. The injection molding stand is provided with a lower mold adjustment device for connecting the lower mold assembly, and the lower mold adjustment device includes a sliding adjustment mechanism, through which the relative position of the lower mold assembly mounted thereon on the injection molding stand is adjusted.

[0008] The vertical injection molding equipment design provided by this invention optimizes the lower mold platform, which was originally fixed to the mold pressing platform on the existing vertical injection molding machine structure. It adopts a structure with adjustable position to connect the lower mold assembly. This structure includes a sliding adjustment mechanism, which is slidably adjusted and mounted on the fixed injection molding platform. The upper mold assembly is mounted on the upper end of the sliding adjustment mechanism, and its lower end slides and adjusts relative to the injection molding platform. This structure allows for fine-tuning of the position of the lower mold assembly relative to the injection molding platform (i.e., the upper mold assembly), resulting in better mold alignment between the upper and lower molds. This effectively solves the technical problem of existing vertical injection molding equipment used for vehicle door molding, where the mold position is too fixed, causing dimensional and quality deviations in the product.

[0009] As a preferred embodiment, the sliding adjustment mechanism is square-plate shaped, with one side supported on the upper surface of the injection molding stand, and the other side featuring a right-angled sliding groove structure. A connecting slider that engages with the sliding groove structure is fixedly mounted on the lower end face of the lower mold assembly. The relative position of the lower mold assembly relative to the injection molding stand is adjusted through the sliding engagement between the connecting slider and the sliding groove structure. This design optimizes the structural design of the sliding adjustment mechanism by incorporating a right-angled sliding groove structure. The right-angled structure allows for fine-tuning of the slider and the connected lower mold assembly in two mutually perpendicular directions. The connecting slider is fixedly connected to the bottom end face of the lower mold assembly.

[0010] As a preferred embodiment, the slide rail structure includes four sets of slide rails respectively located at the four corners of the sliding adjustment mechanism. The right-angle ends of the slide rail sets point towards the center of the sliding adjustment mechanism, and the slots at both ends of the slide rail sets are located at the edges of the four end faces of the sliding adjustment mechanism. This design further optimizes the slide rail design based on the above structure. The four sets of slide rails are respectively located near the four corner areas of the square plate-shaped sliding adjustment mechanism, with right angles pointing towards the center of the plate surface. The ends of the slide rails are open at the adjacent two side edges of the plate surface. This slot structure is used to connect the sliders to be inserted into the slide rails, which facilitates assembly operations. Multiple sets of slide rails facilitate the matching and placement of the lower mold assembly, and are convenient for installing different types of lower mold assemblies to meet different molding requirements.

[0011] As a preferred embodiment, each of the four corner slide groups of the sliding adjustment mechanism includes three parallel mounting slides, with each mounting slide being parallel to the others at a preset distance. This design further optimizes the slide design within each slide group. By using three sets of parallel slides, the slide positions within the same slide group can be selected according to different sizes of the lower module, making the assembly between the lower module and the sliding adjustment mechanism more convenient and flexible.

[0012] As a preferred embodiment, two parallel linear guide rails are provided between the sliding adjustment mechanism and the injection molding table. The linear guide rails are fixedly connected to the upper end face of the sliding adjustment mechanism, and a sliding support platform that slides with the linear guide rails is provided on the bottom plate of the sliding adjustment mechanism.

[0013] Based on the sliding adjustment mechanism and the lower mold assembly mentioned above, this design further incorporates a sliding adjustment mechanism and the injection molding platform below that can smoothly adjust the position of the sliding adjustment mechanism itself. This is achieved by fixing a horizontal linear guide rail on the upper surface of the injection molding platform, with multiple evenly distributed sliding support platforms on it. The sliding support platforms support the bottom surface of the sliding adjustment mechanism. This design allows the sliding adjustment mechanism to be moved out of the mold opening and closing processing position, facilitating the mounting and disassembly of the mold.

[0014] As a preferred embodiment, the injection molding platform has multiple fixed support platforms evenly distributed around the linear guide rail to help distribute the pressure of the lower mold assembly. This design, by increasing the number of fixed support platforms on the basis of the above-mentioned structure that supports the sliding adjustment mechanism via the sliding guide rail, can more evenly distribute the mold closing pressure transmitted through the mold.

[0015] As a preferred embodiment, a feed drive cylinder is connected to the bottom surface of the sliding adjustment mechanism, and the fixed end of the feed drive cylinder is connected to the upper end surface of the injection molding platform, for driving the sliding adjustment mechanism to slide on the linear guide rail. This design provides a mechanism capable of driving the sliding adjustment mechanism to translate on the guide rail, facilitating automatic movement of the sliding adjustment mechanism in conjunction with an automatic control module.

[0016] As a preferred embodiment, the mold lifting device includes a column support assembly and a lifting drive mechanism installed and positioned within the column support assembly. The lifting drive mechanism includes an upper mold mounting plate for mounting and fixing the upper mold assembly. This design improves the structural design of a mold lifting device, mainly including a column support assembly and a lifting drive mechanism. Preferably, a vertical guide column is provided in the column support assembly to assist the vertical movement of the upper mold mounting plate, ensuring smooth and fluid mold closing and opening actions.

[0017] As a preferred embodiment, a step ladder assembly is connected to one side of the column support assembly. The step ladder assembly is suspended above the injection device, and the top of the step ladder assembly is spaced at a predetermined height distance from the upper mold mounting plate. This design optimizes the auxiliary installation and adjustment structure of the upper mold on the column support assembly, and the step ladder assembly facilitates operator access to the upper mold assembly.

[0018] As a preferred embodiment, the upper end face of the injection molding stand is provided with locking mechanisms on both sides of the sliding adjustment mechanism for locking the position of the sliding adjustment mechanism. The locking mechanism includes an electrically controlled feed lock head, and the two end faces of the sliding adjustment mechanism are provided with positioning lock holes that mate with the electrically controlled feed lock head. This design is mainly based on the consideration that the sliding adjustment mechanism itself can slide on the injection molding stand. After the lower mold is adjusted, the lower mold along with the sliding adjustment mechanism is synchronously guided into the mold opening and closing process position via a linear guide rail. To ensure that the position of the sliding adjustment mechanism is stable and does not shift after it is in place, a locking mechanism is provided to completely fix the position of the sliding adjustment mechanism on the guide rail. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall structure of a vertical injection molding equipment for vehicle door panels provided by the present invention;

[0020] Figure 2 is a schematic diagram of the injection molding stand of the vertical injection molding equipment used for vehicle door panels in Figure 1;

[0021] Figure 3 is a partial structural diagram of the upper end face of the injection molding platform in Figure 2.

[0022] Among them, in Figures 1-3:

[0023] 1. Injection molding stand; 1-1. Linear guide rail; 1-2. Locking mechanism; 1-3. Sliding support platform; 1-4. Fixed support platform; 1-5. Feed drive cylinder; 2. Mold lifting device; 2-1. Column support assembly; 2-2. Upper mold mounting plate; 2-3. Lifting drive mechanism; 3. Injection device; 4. Sliding adjustment mechanism; 4-1. Slide group; 4-2. Mounting slide; 5. Step ladder assembly. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0025] Before providing a detailed explanation of the working principle of this invention, further clarification is needed regarding the following: In this description, terms such as "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are used solely 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.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or a connection of two components welded together. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] Referring to Figures 1-3, the following embodiments are described. Figure 1 is a schematic diagram of the overall structure of a vertical injection molding equipment for vehicle door panels provided by the present invention; Figure 2 is a schematic diagram of the structure of the injection molding stand of the vertical injection molding equipment for vehicle door panels in Figure 1; Figure 3 is a partial schematic diagram of the upper end face of the injection molding stand in Figure 2.

[0028] The vertical injection molding equipment for vehicle door panels provided in this embodiment includes an injection molding stand 1, a mold lifting device 2, and an injection device 3 located on one side of the mold lifting device 2 for injecting molding material into the mold after mold closing. The injection molding stand 1 is used to install and fix the lower mold assembly, and the mold lifting device 2 is used to install the upper mold assembly and drive the upper mold to open and close by outputting vertical feed. The injection molding stand 1 is provided with a lower mold adjustment device for connecting the lower mold assembly. The lower mold adjustment device includes a sliding adjustment mechanism 4, which adjusts the relative position of the lower mold assembly installed on it on the injection molding stand 1.

[0029] The vertical injection molding equipment design provided by this invention optimizes the lower mold platform, which was originally fixed to the mold pressing platform on the existing vertical injection molding machine structure. It adopts a structure with adjustable position to install and connect the lower mold assembly. The structure includes a sliding adjustment mechanism 4, which is set on the fixed injection molding platform 1 in a sliding adjustment manner. The upper mold assembly is installed at the upper end of the sliding adjustment mechanism 4, and its lower end slides and adjusts with the injection molding platform 1. This structure allows for fine adjustment of the position of the lower mold assembly relative to the injection molding platform 1, i.e., the upper mold assembly, resulting in better mold closing and alignment between the upper and lower molds. This effectively solves the technical problem of existing vertical injection molding equipment used for vehicle door molding, where the mold position is strongly fixed, causing product dimensional and quality deviations.

[0030] In the technical solution provided in this embodiment, the sliding adjustment mechanism 4 is square-shaped, with one side of its plate supported on the upper surface of the injection molding stand 1, and the other side of its plate having a right-angled slide groove structure. A connecting slider that matches the slide groove structure is fixedly installed on the lower end face of the lower mold assembly. The relative position of the lower mold assembly relative to the injection molding stand 1 is adjusted by the sliding engagement between the connecting slider and the slide groove structure. This design optimizes the structural design of the sliding adjustment mechanism 4, by setting a right-angled slide groove structure on it. The right-angled structure is mainly used to allow the slider and the connected lower mold assembly to make fine adjustments to their displacement in two mutually perpendicular directions. The connecting slider is fixedly connected to the bottom end face of the lower mold assembly.

[0031] In the technical solution provided in this embodiment, the slide group structure includes four slide groups 4-1 respectively disposed at the four corners of the sliding adjustment mechanism 4. The right-angle ends of the slide groups 4-1 point towards the center of the sliding adjustment mechanism 4, and the slots at both ends of the slide groups 4-1 are located at the edges of the four end faces of the sliding adjustment mechanism 4. This design further optimizes the slide design based on the above structure. The four slide groups 4-1 are respectively disposed near the four corner areas of the square plate-shaped sliding adjustment mechanism 4, with right angles pointing towards the center of the plate surface. The ends of both ends are open at the adjacent two side edges of the plate surface. This slot structure is used to connect the slider to the installation slide, which facilitates the assembly operation. Multiple slide groups 4-1 facilitate the matching and placement of the lower mold, and are convenient for installing different types of lower molds to meet different molding requirements.

[0032] In the technical solution provided in this embodiment, each of the four corner slide groups 4-1 of the sliding adjustment mechanism 4 includes three parallel mounting slides 4-2, and each mounting slide 4-2 is parallel to each other at a preset distance. This design further optimizes the slide design within each slide group. By using three sets of parallel slides, the slide position within the same slide group can be selected according to the different sizes of the lower module, making the assembly between the lower module and the sliding adjustment mechanism 4 more convenient and flexible.

[0033] In the technical solution provided in this embodiment, two parallel linear guide rails 1-1 are provided between the sliding adjustment mechanism 4 and the injection molding table 1. The linear guide rails 1-1 are fixedly connected to the upper end face of the sliding adjustment mechanism 4, and the bottom plate of the sliding adjustment mechanism 4 is provided with a sliding support platform 1-3 that slides with the linear guide rails 1-1.

[0034] Based on the sliding adjustment mechanism 4 and the lower module, this design further provides a smooth adjustment mechanism for the position of the sliding adjustment mechanism 4 itself between the sliding adjustment mechanism 4 and the injection molding platform 1 below. This is achieved by fixing a horizontal linear guide rail 1-1 on the upper surface of the injection molding platform 1, and then setting multiple evenly distributed sliding support platforms 1-3 on it. The sliding support platforms 1-3 support the bottom surface of the sliding adjustment mechanism 4. This design allows the sliding adjustment mechanism 4 to be moved out of the mold opening and closing processing position, which is convenient for mold mounting and disassembly.

[0035] In the technical solution provided in this embodiment, the injection molding stand 1 has multiple fixed support platforms 1-4 evenly distributed around the linear guide rail 1-1 to help distribute the pressure of the lower mold assembly. This design increases the number of fixed support platforms on the basis of the above-mentioned structure in which the sliding adjustment mechanism 4 is supported by the sliding guide rail, which can more evenly distribute the mold closing pressure transmitted through the mold.

[0036] In the technical solution provided in this embodiment, a feed drive cylinder 1-5 is connected to the bottom surface of the sliding adjustment mechanism 4. The fixed end of the feed drive cylinder 1-5 is connected to the upper end surface of the injection molding table 1, and is used to drive the sliding adjustment mechanism 4 to slide on the linear guide rail 1-1. This design provides a mechanism that can drive the sliding adjustment mechanism 4 to translate on the guide rail, which is convenient for automatic movement of the sliding adjustment mechanism 4 in conjunction with the automatic control module.

[0037] In the technical solution provided in this embodiment, the mold lifting device 2 includes a column support assembly 2-1 and a lifting drive mechanism 2-3 installed and positioned within the column support assembly 2-1. The lifting drive mechanism 2-3 includes an upper mold mounting plate for mounting and fixing the upper mold assembly. This design improves the structural design of the mold lifting device 2, mainly including the column support assembly 2-1 and the lifting drive mechanism 2-3. Preferably, a vertical guide column is provided in the column support assembly 2-1 to assist the vertical movement of the upper mold mounting plate, ensuring smooth and fluid mold closing and opening actions.

[0038] In the technical solution provided in this embodiment, a step ladder assembly 5 is connected to one side of the column support assembly 2-1. The step ladder assembly 5 is suspended above the injection device 3, and the top of the step ladder assembly 5 is spaced at a preset height distance from the upper mold mounting plate. This design optimizes the auxiliary installation and adjustment structure of the upper mold of the column support assembly 2-1, and the step ladder assembly 5 facilitates the operator's access to the position of the upper mold.

[0039] In the technical solution provided in this embodiment, the upper end face of the injection molding stand 1 is provided with locking mechanisms 1-2 on both sides of the sliding adjustment mechanism 4 for locking the position of the sliding adjustment mechanism 4. The locking mechanism 1-2 includes an electrically controlled feed lock head, and the two end faces of the sliding adjustment mechanism 4 are provided with positioning lock holes that cooperate with the electrically controlled feed lock head. This design is mainly based on the consideration that the sliding adjustment mechanism 4 itself can slide on the injection molding stand 1. After the lower mold is adjusted, the lower mold along with the sliding adjustment mechanism 4 is synchronously guided into the mold opening and closing process position through the linear guide rail 1-1. In order to ensure that the position of the sliding adjustment mechanism 4 is stable and does not deviate after it is in place, the locking mechanism 1-2 is set to completely fix the position of the sliding adjustment mechanism 4 on the guide rail.

[0040] While the disclosure is as stated above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this invention.

Claims

1. A vertical injection molding machine for vehicle door panels, comprising an injection molding stand (1), a mold lifting device (2), and an injection device (3) located on one side of the mold lifting device (2) for injecting molding material into a mold after mold closing; the injection molding stand (1) is used to install and fix a lower mold assembly, and the mold lifting device (2) is used to install an upper mold assembly and drive the upper mold assembly to open and close the mold by outputting a vertical feed; characterized in that, The injection molding stand (1) is provided with a lower mold adjustment device for connecting the lower mold assembly. The lower mold adjustment device includes a sliding adjustment mechanism (4). The relative position of the lower mold assembly installed on it on the injection molding stand (1) is adjusted by the sliding adjustment mechanism (4). The sliding adjustment mechanism (4) is square plate-shaped. One side of its plate is supported on the upper end surface of the injection molding stand (1), and the other side plate is provided with a right-angled slide groove structure. The lower end surface of the lower mold assembly is fixedly provided with a connecting slider that matches the slide groove structure. The sliding slider and the slide groove structure are connected by sliding... The relative position of the lower module relative to the injection molding stand (1) is adjusted; the slide group structure includes 4 slide groups (4-1) respectively set at the four corners of the sliding adjustment mechanism (4), the right angle end of the slide group (4-1) points to the center of the sliding adjustment mechanism (4), and the slots at both ends of the slide group (4-1) are located at the four end edges of the sliding adjustment mechanism (4); each slide group (4-1) located at the four corners of the sliding adjustment mechanism (4) includes three parallel mounting slides (4-2), and each mounting slide (4-2) is parallel to each other at a preset distance.

2. The vertical injection molding equipment for vehicle door panels according to claim 1, characterized in that, Two parallel linear guide rails (1-1) are provided between the sliding adjustment mechanism (4) and the injection molding stand (1). The linear guide rails (1-1) are fixedly connected to the upper end face of the sliding adjustment mechanism (4). The bottom plate of the sliding adjustment mechanism (4) is provided with a sliding support platform (1-3) that slides with the linear guide rails (1-1).

3. The vertical injection molding equipment for vehicle door panels according to claim 2, characterized in that, The injection molding stand (1) has multiple fixed support platforms (1-4) evenly distributed around the linear guide rail (1-1) to help share the pressure of the lower module.

4. The vertical injection molding equipment for vehicle door panels according to claim 2, characterized in that, The bottom surface of the sliding adjustment mechanism (4) is connected to a feed drive cylinder (1-5). The fixed end of the feed drive cylinder (1-5) is connected to the upper end surface of the injection molding stand (1) to drive the sliding adjustment mechanism (4) to slide on the linear guide rail (1-1).

5. The vertical injection molding equipment for vehicle door panels according to any one of claims 1-4, characterized in that, The mold lifting device (2) includes a column support assembly (2-1) and a lifting drive mechanism (2-3) installed and positioned within the column support assembly (2-1). The lifting drive mechanism (2-3) includes an upper mold mounting plate (2-2) for installing and fixing the upper mold assembly.

6. The vertical injection molding equipment for vehicle door panels according to claim 5, characterized in that, A step ladder assembly (5) is connected to one side of the column support assembly (2-1). The step ladder assembly (5) is suspended above the injection device (3). The top of the step ladder assembly (5) is spaced at a preset height distance from the upper mold mounting plate (2-2).

7. The vertical injection molding equipment for vehicle door panels according to claim 6, characterized in that, The upper end face of the injection molding stand (1) is provided with locking mechanisms (1-2) for locking the position of the sliding adjustment mechanism (4) on both sides of the sliding adjustment mechanism (4). The locking mechanism (1-2) includes an electrically controlled feed lock head. The two end faces of the sliding adjustment mechanism (4) are provided with positioning lock holes that cooperate with the electrically controlled feed lock head.

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