An injection mold for manufacturing automotive parts

Abstract

This utility model provides an injection mold for automotive parts production, belonging to the field of injection molds. It solves the problem that traditional automotive parts injection molds, without a release agent spraying device, cause scratches, burrs, or indentations on the plastic part surface due to friction during the demolding process. The injection mold for automotive parts production is characterized by comprising an injection molding equipment body, with an outer frame fixedly connected to the upper end of the equipment body. Multiple rectangularly distributed transverse guide strips are fixedly connected between two outer frames. Corresponding second and first mold uprights are installed at the outer ends of the transverse guide strips. A hydraulic push rod is fixedly connected to the rear inner wall of the outer frame. Its advantage lies in the fact that this automotive parts injection mold, through the symmetrical layout of the vertical release agent storage tank combined with the precise spraying design of the atomizing nozzle, can selectively cover the two mold uprights with release agent.

Description

Technical Field

[0001] This utility model belongs to the field of injection molds and relates to an injection mold for the production of automotive parts. Background Technology

[0002] Injection molds for automotive parts manufacturing are specialized tools used for the mass production of plastic automotive components. Their core function is to inject molten plastic into a mold cavity under high pressure, allowing it to cool and solidify to form precision parts that meet design requirements. These molds are widely used in the automotive industry, covering hundreds of parts including interior components such as dashboards and door panels, exterior components such as grilles and headlight covers, and functional components such as fuel tanks and piping. Their technical level and quality directly affect the safety, lightweight design, and cost control of automobiles.

[0003] In the long-term use of traditional automotive parts injection molds, if no mold release agent spraying device is installed, the friction during the demolding process will cause scratches, burrs or indentations on the surface of the plastic parts, requiring additional grinding and finishing processes. This not only increases production costs, but may also damage the structural strength of the parts due to over-finishing. Manual application is time-consuming and laborious, and may create spraying dead corners. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing an injection mold for the production of automotive parts that includes a mold release agent spraying device.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] An injection mold for automotive parts production is characterized by comprising an injection molding equipment body, an outer frame fixedly connected to the upper end of the injection molding equipment body, a plurality of rectangularly distributed transverse guide strips fixedly connected between two outer frames, a second mold plate and a first mold plate corresponding to each other installed on the outer ends of the transverse guide strips, a hydraulic push rod fixedly connected to the rear inner wall of the outer frame, the output end of the hydraulic push rod being connected to the first mold plate, two vertical mold release agent reservoirs fixedly connected to the upper end of the injection molding equipment body, the two vertical mold release agent reservoirs being located on both sides between the second mold plate and the first mold plate, a top frame fixedly connected to the upper end of the vertical mold release agent reservoirs, a spray pump fixedly connected to the lower end of the top frame, a connecting pipe movably connected to the upper end of the vertical mold release agent reservoirs, the spray pump and the connecting pipe being connected to each other, and atomizing nozzles symmetrically fixedly connected to both sides of the outer end of the vertical mold release agent reservoirs.

[0007] In the aforementioned injection mold for automotive parts production, the vertically corresponding atomizing nozzles are arranged in a spiral pattern with varying angles, and the output ends of the two sets of atomizing nozzles face the surfaces of the second mold plate and the first mold plate, respectively.

[0008] In the aforementioned injection mold for automotive parts production, a metering discharge sensor is fixedly connected to the right end of the vertical mold release agent storage tank, and telescopic crossbars are symmetrically fixedly connected to both sides of the first mold plate near the vertical mold release agent storage tank.

[0009] In the aforementioned injection mold for automotive parts production, an external spring is fitted onto the outer end of the telescopic crossbar, and a flexible block is fixedly connected to one end of the external spring near the vertical release agent storage tank.

[0010] In the aforementioned injection mold for automotive parts production, a metering liquid sensor is fixedly connected to one end of the vertical release agent storage tank near the telescopic crossbar, and the metering liquid sensor and the docking flexible block are horizontally docked to each other.

[0011] In the aforementioned injection mold for automotive parts production, an auxiliary bottom chamber is provided at the lower end of the injection molding equipment body, and two auxiliary liquid replenishment chambers are fixedly connected to the inner end of the auxiliary bottom chamber.

[0012] In the aforementioned injection mold for automotive parts production, the two auxiliary fluid replenishment tanks are interconnected with the corresponding vertical mold release agent storage tanks, and the auxiliary fluid replenishment tanks are equipped with pumps.

[0013] Compared with existing technologies, this injection mold for automotive parts production utilizes a symmetrical layout of vertical release agent storage tanks, combined with a precise spraying design of atomizing nozzles. This allows for targeted release agent coverage of both mold plates. The spiral angle of the nozzles expands the spraying range, ensuring uniform adhesion of the release agent to the mold surface, preventing localized adhesion, reducing the risk of plastic part damage, and improving product yield. The combination of telescopic crossbars, external springs, and flexible docking blocks, along with a quantitative liquid dispensing sensor, precisely controls the release agent output based on the position of the mold plates. This prevents insufficient spraying from affecting demolding while avoiding excessive spraying that could lead to waste, thus reducing raw material costs. The linkage between the auxiliary bottom tank and the auxiliary replenishment tank automatically replenishes the storage tanks, ensuring uninterrupted spraying, reducing manual intervention, and improving production efficiency. The overall structure achieves integrated operation of injection molding and release agent spraying. The tight fit of all components not only enhances the stability and reliability of equipment operation but also improves the production quality and efficiency of automotive parts, reduces maintenance and raw material costs, and is suitable for large-scale production needs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of the injection molding equipment for the injection mold used in the production of automotive parts;

[0015] Figure 2 This is a schematic diagram of the auxiliary bottom compartment structure of the injection mold used in the production of automotive parts;

[0016] Figure 3 This is a partially enlarged cross-sectional view of the injection molding equipment body for the injection mold used in the production of automotive parts.

[0017] Figure 4 This is a schematic diagram of the vertical mold release agent storage structure of the injection mold used in the production of automotive parts.

[0018] In the diagram, 1. Injection molding equipment body; 2. Equipment outer frame; 3. Horizontal guide bar; 4. Hydraulic push rod; 5. First mold upright plate; 6. Second mold upright plate; 7. Vertical release agent storage tank; 8. Atomizing nozzle; 9. Telescopic crossbar; 10. External spring; 11. Connecting flexible block; 12. Quantitative liquid dispensing sensor; 13. Auxiliary bottom tank; 14. Auxiliary liquid replenishment tank; 15. Top frame; 16. Liquid spraying pump; 17. Connecting pipes. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. 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.

[0020] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] like Figure 1As shown in Figure 4, this injection mold for automotive parts production includes an injection molding equipment body 1. An outer frame 2 is fixedly connected to the upper end of the injection molding equipment body 1. Multiple rectangularly distributed transverse guide strips 3 are fixedly connected between two outer frames 2. Corresponding second mold plates 6 and first mold plates 5 are installed on the outer ends of the transverse guide strips 3. A hydraulic push rod 4 is fixedly connected to the rear inner wall of the outer frame 2. The output end of the hydraulic push rod 4 is connected to the first mold plate 5. The injection molding equipment body 1... Two vertical mold release agent storage tanks 7 are fixedly connected to the upper end of the mold. The two vertical mold release agent storage tanks 7 are located on both sides between the second mold plate 6 and the first mold plate 5. A top frame 15 is fixedly connected to the upper end of the vertical mold release agent storage tank 7. A spray pump 16 is fixedly connected to the lower end of the top frame 15. A connecting pipe 17 is movably connected to the upper end of the vertical mold release agent storage tank 7. The spray pump 16 and the connecting pipe 17 are connected to each other. Atomizing nozzles 8 are symmetrically fixedly connected to both sides of the outer end of the vertical mold release agent storage tank 7.

[0023] The atomizing nozzles 8 are arranged in a spiral pattern with corresponding vertical angles, and the output ends of the two sets of atomizing nozzles 8 face the surfaces of the second mold plate 6 and the first mold plate 5, respectively.

[0024] A metering liquid sensor 12 is fixedly connected to the right end of the vertical mold release agent storage tank 7, and telescopic crossbars 9 are symmetrically fixedly connected to both sides of the first mold plate 5 near the vertical mold release agent storage tank 7.

[0025] An external spring 10 is fitted on the outer end of the telescopic crossbar 9, and a docking flexible block 11 is fixedly connected to one end of the external spring 10 near the vertical release agent storage tank 7.

[0026] The vertical release agent storage tank 7 is fixedly connected to a metering liquid sensor 12 at one end near the telescopic crossbar 9, and the metering liquid sensor 12 and the docking flexible block 11 are horizontally docked with each other.

[0027] The lower end of the injection molding equipment body 1 is provided with an auxiliary bottom chamber 13, and two auxiliary liquid replenishment chambers 14 are fixedly connected to the inner end of the auxiliary bottom chamber 13.

[0028] The two auxiliary replenishment tanks 14 are interconnected with the corresponding vertical release agent storage tanks 7, and the auxiliary replenishment tanks 14 are equipped with pumps.

[0029] In this injection mold for automotive parts production, the injection molding equipment body 1 provides basic support for the overall structure. The outer frame 2, which is fixedly connected to the upper end of the equipment, provides overall protection and support. Multiple rectangularly distributed transverse guide bars 3 are fixedly connected between the two outer frames 2, providing stable sliding guidance for the second mold plate 6 and the first mold plate 5, ensuring that they maintain precise alignment during movement. The hydraulic push rod 4, which is fixedly connected to the rear inner wall of the outer frame 2, is the power source for mold opening and closing. Its output end is connected to the first mold plate 5. Through the extension and retraction of the hydraulic push rod 4, the first mold plate 5 is driven to move along the transverse guide bars 3, realizing the mold closing and opening actions with the second mold plate 6, so as to complete the injection molding and part removal operations. Two vertical release agent storage tanks 7, which are fixedly connected to the upper end of the injection molding equipment body 1, are used to store release agent. They are located on both sides between the second mold plate 6 and the first mold plate 5, and can be used to spray release agent onto the two mold plates. The top frame 15, fixedly connected to the upper end of the vertical release agent storage tank 7, provides installation support for the spray pump 16. The spray pump 16 is connected to the connecting pipe 17, which is movably connected to the upper end of the vertical release agent storage tank 7. Under the action of the spray pump 16, the release agent in the vertical release agent storage tank 7 can be extracted and delivered to the atomizing nozzles 8. The atomizing nozzles 8, symmetrically fixedly connected to both sides of the outer end of the vertical release agent storage tank 7, are the execution components for spraying the release agent. The multiple vertically corresponding atomizing nozzles 8 are arranged in a spiral pattern with varying angles. This design can expand the spraying range and ensure that the release agent evenly covers the surfaces of the second mold plate 6 and the first mold plate 5. The output ends of the two sets of atomizing nozzles 8 face the surfaces of the second mold plate 6 and the first mold plate 5, respectively, which can accurately spray the two mold plates. The first mold plate 5 is symmetrically fixed on both sides near the end of the vertical release agent storage tank 7. The telescopic crossbar 9 is connected to an external spring 10 with an elastic reset function. The flexible block 11 connected to the end of the external spring 10 near the vertical mold release agent storage tank 7 will horizontally dock with the quantitative liquid discharge sensor 12 fixedly connected to the end of the vertical mold release agent storage tank 7 near the telescopic crossbar 9 during the movement of the first mold plate 5. Through the contact between the two, the quantitative liquid discharge sensor 12 can sense the position of the mold plate and thus control the output of the mold release agent to achieve quantitative spraying and avoid mold release agent waste or insufficient spraying. Two auxiliary liquid replenishment tanks 14 are fixedly connected in the auxiliary bottom tank 13 opened at the lower end of the injection molding equipment body 1. They are respectively connected to the corresponding vertical mold release agent storage tank 7. The pump built into the auxiliary liquid replenishment tank 14 can automatically replenish the mold release agent in the vertical mold release agent storage tank 7 when the mold release agent is insufficient, to ensure the continuous supply of mold release agent and ensure the continuity of the spraying process.

[0030] The technical features of the above-described embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. An injection mold for manufacturing automotive parts, characterized in that, The device includes an injection molding machine body. An outer frame is fixedly connected to the upper end of the injection molding machine body. Multiple rectangularly distributed transverse guide strips are fixedly connected between two outer frames. Corresponding second and first mold plates are installed at the outer ends of the transverse guide strips. A hydraulic push rod is fixedly connected to the rear inner wall of the outer frame. The output end of the hydraulic push rod is connected to the first mold plate. Two vertical mold release agent reservoirs are fixedly connected to the upper end of the injection molding machine body. The two vertical mold release agent reservoirs are located on both sides between the second and first mold plates. A top frame is fixedly connected to the upper end of each vertical mold release agent reservoir. A spray pump is fixedly connected to the lower end of the top frame. A connecting pipe is movably connected to the upper end of each vertical mold release agent reservoir. The spray pump and the connecting pipe are interconnected. Atomizing nozzles are symmetrically fixedly connected to both sides of the outer end of each vertical mold release agent reservoir.

2. The injection mold for automobile parts production according to claim 1, characterized in that, The atomizing nozzles, which are vertically corresponding, are arranged in a spiral pattern with varying angles. The output ends of the two sets of atomizing nozzles face the surfaces of the second mold plate and the first mold plate, respectively.

3. The injection mold for automobile parts production according to claim 2, characterized in that, A metering sensor is fixedly connected to the right end of the vertical mold release agent storage tank, and telescopic crossbars are symmetrically fixedly connected to both sides of the first mold plate near the vertical mold release agent storage tank.

4. The injection mold for automobile parts production according to claim 3, characterized in that, An external spring is fitted at the outer end of the telescopic crossbar, and a flexible block is fixedly connected to the end of the external spring near the vertical release agent storage tank.

5. The injection mold for producing an automobile part according to claim 4, wherein The vertical release agent storage tank is fixedly connected to a metering liquid sensor at one end near the telescopic crossbar, and the metering liquid sensor and the docking flexible block are horizontally docked to each other.

6. The injection mold for producing an automobile part according to claim 5, wherein An auxiliary bottom chamber is provided at the lower end of the injection molding equipment body, and two auxiliary liquid replenishment chambers are fixedly connected to the inner end of the auxiliary bottom chamber.

7. The injection mold for producing an automobile part according to claim 6, wherein The two auxiliary replenishment tanks are interconnected with their respective vertical release agent storage tanks, and each auxiliary replenishment tank is equipped with a pump.

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