A forming die for a car trim bright strip

Abstract

The utility model discloses a kind of automobile decorative bright strip forming die, relate to automobile decorative bright strip production technical field, including: forming mechanism, the forming mechanism is used to shape automobile decorative bright strip;Release agent output mechanism, the release agent output mechanism is used to store release agent;And sealing flow guide mechanism, the sealing flow guide mechanism includes the sealing cover of fixed sleeve interface setting in upper die outer side, sealing rubber ring is adhesively arranged in the sealing cover inboard bottom, the waste gas pipe connected with tail gas treatment equipment is fixedly penetrated and arranged in the left end of sealing cover, atomizing nozzle is fixedly nested and arranged in the right end middle part of sealing cover, the input end of atomizing nozzle is fixedly connected with connecting hose. The utility model can realize the active spraying of release agent in the process of lower die and upper die die closing, in addition, a large amount of waste gas containing release agent can be avoided to enter into working environment during spraying process to cause pollution.

Description

Technical Field

[0001] This utility model relates to the field of automotive decorative trim production technology, and in particular to an automotive decorative trim molding die. Background Technology

[0002] Automotive decorative trim strips are decorative strips installed along the edges of car windows, primarily for aesthetic purposes. Currently, they are mainly made of stainless steel and industrial plastic. Regardless of the material used, corresponding molding molds are required for production.

[0003] When producing automotive decorative trim strips using injection molding molds, in order to facilitate demolding after the trim strips are formed, a release agent needs to be sprayed into the molding chambers of the upper and lower molds before each injection molding. In the existing technology, a special release agent spraying equipment is usually set up. After demolding, the spraying equipment moves the atomizing nozzle between the upper and lower molds. After spraying, the spraying equipment then moves the atomizing nozzle back to its original position.

[0004] While the above method can complete the spraying of the release agent in the molding chamber, the operation time is relatively long, which has a relatively large impact on the production efficiency of automotive decorative trim strips. In addition, since there is no shielding during the spraying process, some release agent will directly enter the air in the working environment, causing air pollution.

[0005] Therefore, it is necessary to invent a molding die for automotive decorative trim strips to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a molding die for automotive decorative trim strips, which can achieve active spraying of release agent during the mold closing process between the lower and upper molds. In addition, the spraying process can avoid a large amount of exhaust gas containing release agent entering the working environment and causing pollution. This solves the problem mentioned in the background art, which is that the operation time required is relatively long, which has a relatively large impact on the production efficiency of automotive decorative trim strips. Furthermore, since there is no shielding during the spraying process, some release agent will directly enter the air in the working environment, causing air pollution.

[0007] According to one aspect of this disclosure, the following technical solution is provided: a molding die for automotive decorative trim strips, comprising:

[0008] A molding mechanism for molding automotive decorative trim strips;

[0009] A mold release agent dispensing mechanism, the mold release agent dispensing mechanism being used to store mold release agent; and

[0010] A sealing and guiding mechanism includes a sealing cover fixedly sleeved on the outside of the upper mold, a sealing ring bonded to the bottom of the inner side of the sealing cover, an exhaust pipe connected to a tail gas treatment device fixedly passing through the left end of the sealing cover, an atomizing nozzle fixedly nested in the middle of the right end of the sealing cover, a connecting hose fixedly connected to the input end of the atomizing nozzle, and an extension plate fixedly installed at the top of the right end of the sealing cover.

[0011] According to at least one embodiment of the automotive decorative trim molding die of the present disclosure, the molding mechanism includes a fixed base, and mounting holes are provided at the four corners of the top of the fixed base.

[0012] According to at least one embodiment of the automotive decorative trim molding die of the present disclosure, a lower mold is fixedly disposed on the top left side of the fixed base, and an upper mold is disposed directly above the lower mold, the lower mold and the upper mold together forming a molding cavity.

[0013] According to at least one embodiment of the automotive decorative trim molding die of the present disclosure, the release agent output mechanism includes a liquid storage tank located on the right side of the upper mold, and a support frame fixedly disposed on the top right side of the fixed base is fixedly disposed at the bottom of the liquid storage tank.

[0014] According to at least one embodiment of the automotive decorative trim molding die of the present disclosure, a piston cylinder is fixedly nested at the bottom center of the reservoir, and an output pipe connected to a connecting hose is fixedly provided through the bottom right side of the piston cylinder, and a valve is fixedly provided inside the output pipe.

[0015] According to at least one embodiment of the automotive decorative trim molding die of the present disclosure, a piston rod is slidably disposed on the inner side of the piston cylinder in the vertical direction, a rubber piston is fixedly disposed at the top end of the piston rod, and the bottom end of the piston rod is fixedly connected to the top of the extension plate.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] This invention features a sealing and guiding mechanism. As the upper mold moves downwards under the hydraulic drive, the sealing cover moves downwards synchronously. Simultaneously, the sealing cover, via an extension plate, drives the piston rod downwards. When the sealing cover, due to its continuous descent, fits over the lower mold, a sealing ring seals the space between the lower mold and the sealing cover. Meanwhile, a rubber piston, driven by the piston rod, enters the piston cylinder. As the sealing cover continues to descend, the rubber piston pushes the release agent inside the piston cylinder, forcing open the valves and entering the atomizing nozzle through a connecting hose. The agent is then atomized and sprayed into the chamber formed by the lower mold, upper mold, and sealing cover. The exhaust gas generated during the release agent spraying process is discharged to a waste gas treatment device for processing via an exhaust pipe. As the upper mold continues to descend, it eventually fits against the top of the lower mold, forming a molding chamber. Compared to existing technologies, this invention allows for active spraying of the release agent during the mold-closing process between the lower and upper molds. Furthermore, it avoids the entry of large amounts of exhaust gas containing the release agent into the working environment, preventing pollution. Attached Figure Description

[0018] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0019] Figure 1 This is a schematic diagram of the overall structure of a molding die for automotive decorative trim strips according to one embodiment of the present disclosure.

[0020] Figure 2 This is a partial structural diagram of the molding mechanism and release agent output mechanism of an automotive decorative trim molding die according to one embodiment of the present disclosure.

[0021] Figure 3 This is a partial structural diagram of the release agent output mechanism and the sealing and guiding mechanism of an automotive decorative trim molding die according to one embodiment of the present disclosure.

[0022] The specific labels in the attached figures are as follows:

[0023] 1. Molding mechanism; 11. Fixed base; 12. Mounting hole; 13. Lower mold; 14. Upper mold;

[0024] 2. Release agent dispensing mechanism; 21. Storage tank; 22. Support frame; 23. Piston cylinder; 24. Dispensing pipe; 25. Piston rod; 26. Rubber piston;

[0025] 3. Sealing and guiding mechanism; 31. Sealing cover; 32. Sealing ring; 33. Exhaust pipe; 34. Atomizing nozzle; 35. Connecting hose; 36. Extension plate. Detailed Implementation

[0026] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0027] Figure 1 This is a schematic diagram of the overall structure of a molding die for automotive decorative trim strips according to one embodiment of the present disclosure.

[0028] Figure 2 This is a partial structural diagram of the molding mechanism 1 and the release agent output mechanism 2 of an automotive decorative trim molding die according to one embodiment of the present disclosure.

[0029] Figure 3 This is a partial structural diagram of the release agent output mechanism 2 and the sealing and guiding mechanism 3 of an automotive decorative trim molding die according to one embodiment of the present disclosure.

[0030] like Figures 1-3 As shown, the automotive decorative trim molding mold disclosed herein may include components such as a molding mechanism 1, a release agent output mechanism 2, and a sealing and guiding mechanism 3. The molding mechanism 1 serves as the main body of the mold and undertakes the injection molding function of the automotive decorative trim, providing a basic chamber for the release agent spraying. The release agent output mechanism 2 realizes the storage and quantitative delivery of the release agent and is linked with the movement of the molding mechanism 1 without the need for additional driving equipment. The sealing and guiding mechanism 3 forms a closed space during the spraying stage, reducing the leakage of release agent exhaust gas, and at the same time guiding the release agent to cover the molding chamber.

[0031] like Figure 2As shown in this disclosure, the molding mechanism 1 includes a fixed base 11 made of high-strength gray cast iron, which has excellent compressive strength and stability and can withstand the clamping force during injection molding. The fixed base 11 has mounting holes 12 at the four corners of its top. A lower mold 13 is fixedly installed on the left side of the top of the fixed base 11. An upper mold 14 is installed directly above the lower mold 13. The upper mold 14 is provided with an injection runner interface for inputting molten engineering plastic and an exhaust pipe for venting and connected to the exhaust gas treatment equipment. The lower mold 13 and the upper mold 14 are both prior art, so the specific structure will not be described in detail here. A hydraulic drive device for driving vertical lifting is fixedly connected to the top of the upper mold 14. The lower mold 13 and the upper mold 14 together form the molding chamber.

[0032] Therefore, in the actual production process, the hydraulic drive equipment drives the upper mold 14 and the lower mold 13 to close the mold. At this time, the lower mold 13 and the upper mold 14 form a molding chamber. Subsequently, the molten engineering plastic can be input through the injection channel interface on the upper mold 14, so that the engineering plastic is formed under the action of the molding chamber.

[0033] like Figure 2 and Figure 3 As shown, in a preferred embodiment, the release agent output mechanism 2 is entirely treated with corrosion resistance or made of corrosion-resistant materials. Specifically, it includes a liquid storage tank 21 located on the right side of the upper mold 14, which is made of 304 stainless steel. A support frame 22, which is a welded angle steel structure, is fixedly installed at the bottom of the liquid storage tank 21 and fixedly installed on the top right side of the fixed base 11. A piston cylinder 23, which is a precision seamless steel pipe, is fixedly nested at the bottom center of the liquid storage tank 21. The inner wall is chrome-plated to reduce the friction coefficient with the rubber piston 26. An output pipe 24, which is connected to the connecting hose 35, is fixedly installed through the bottom right side of the piston cylinder 23. A valve is fixedly installed inside the output pipe 24. A piston rod 25 is slidably installed on the inner side of the piston cylinder 23 in the vertical direction. A seal is provided between the piston cylinder 23 and the piston rod 25 to prevent release agent leakage. A rubber piston 26 is fixedly installed at the top of the piston rod 25, and the bottom end of the piston rod 25 is fixedly connected to the top of the extension plate 36.

[0034] Therefore, under normal conditions, the valve blocks the output pipe 24 to prevent the release agent inside the piston cylinder 23 from being output and leaking. When the extension plate 36 moves down and drives the piston rod 25 to move down simultaneously, the piston rod 25 drives the rubber piston 26 to move down. Subsequently, the rubber piston 26 enters the piston cylinder 23 under the drive of the piston rod 25. The rubber piston 26 pushes the release agent inside the piston cylinder 23 to open the valve and enter the atomizing nozzle 34 through the connecting hose 35.

[0035] like Figure 3As shown in this disclosure, the sealing and guiding mechanism 3 includes a sealing cover 31 fixedly sleeved on the outside of the upper mold 14. The sealing cover 31 is a stainless steel stamping part. A sealing ring 32 is bonded to the bottom of the inner side of the sealing cover 31. When the sealing cover 31 is sleeved on the lower mold 13, the sealing ring 32 fits tightly with the outer wall of the lower mold 13 to form a closed space and prevent the release agent exhaust gas from leaking out. An exhaust gas pipe 33 connected to a tail gas treatment device is fixedly installed through the left end of the sealing cover 31. An atomizing nozzle 34 is fixedly nested in the middle of the right end of the sealing cover 31. The atomizing nozzle 34 is a fan-shaped atomizing nozzle to ensure that the release agent can evenly cover the concave cavity of the lower mold and the surface of the convex mold of the upper mold. A connecting hose 35 is fixedly connected to the input end of the atomizing nozzle 34. The atomizing nozzle 34 and the connecting hose 35 are also selected to be corrosion-resistant. An extension plate 36 is fixedly installed at the top of the right end of the sealing cover 31.

[0036] Therefore, when the upper mold 14 moves continuously downward under the drive of the hydraulic drive device, the sealing cover 31 moves downward synchronously under the drive of the upper mold 14. At the same time, the sealing cover 31 drives the piston rod 25 to move downward synchronously through the extension plate 36. When the sealing cover 31 is sleeved on the outside of the lower mold 13 due to continuous descent, the sealing ring 32 seals the gap between the lower mold 13 and the sealing cover 31. Meanwhile, the release agent enters the atomizing nozzle 34 through the connecting hose 35 and is then atomized and sprayed into the cavity formed by the lower mold 13, the upper mold 14 and the sealing cover 31. The exhaust gas generated during the release agent spraying process is output to the exhaust gas treatment equipment for treatment through the exhaust gas pipe 33. As the upper mold 14 continues to move downward, the upper mold 14 finally fits against the top of the lower mold 13 to form a molding cavity. Compared with the prior art, this utility model can realize the active spraying of the release agent during the mold closing process of the lower mold 13 and the upper mold 14. In addition, the spraying process can avoid a large amount of exhaust gas containing release agent entering the working environment and causing pollution.

[0037] It should also be noted that any content not described in detail in this specification is prior art known to those skilled in the art.

[0038] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A molding die for automotive decorative trim strips, characterized in that, include: A molding mechanism for molding automotive decorative trim strips; A mold release agent dispensing mechanism, wherein the mold release agent dispensing mechanism is used to store the mold release agent; as well as A sealing and guiding mechanism includes a sealing cover fixedly sleeved on the outside of the upper mold, a sealing ring bonded to the bottom of the inner side of the sealing cover, an exhaust pipe connected to a tail gas treatment device fixedly passing through the left end of the sealing cover, an atomizing nozzle fixedly nested in the middle of the right end of the sealing cover, a connecting hose fixedly connected to the input end of the atomizing nozzle, and an extension plate fixedly installed at the top of the right end of the sealing cover.

2. The automotive decorative trim molding die according to claim 1, characterized in that: The molding mechanism includes a fixed base, and mounting holes are provided at the four corners of the top of the fixed base.

3. The automotive decorative trim molding die according to claim 2, characterized in that: A lower mold is fixedly installed on the top left side of the fixed base, and an upper mold is installed directly above the lower mold. The lower mold and the upper mold together form a molding cavity.

4. The automotive decorative trim molding die according to claim 3, characterized in that: The release agent dispensing mechanism includes a liquid storage tank located on the right side of the upper mold, and a support frame fixedly installed on the top right side of the fixed base is fixedly installed at the bottom of the liquid storage tank.

5. The automotive decorative trim molding die according to claim 4, characterized in that: A piston cylinder is fixedly nested at the bottom center of the liquid storage tank. An output pipe connected to a connecting hose is fixedly installed through the bottom right side of the piston cylinder. A valve is fixedly installed inside the output pipe.

6. The automotive decorative trim molding die according to claim 5, characterized in that: A piston rod is slidably disposed on the inner side of the piston cylinder in the vertical direction. A rubber piston is fixedly disposed on the top end of the piston rod, and the bottom end of the piston rod is fixedly connected to the top of the extension plate.

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