Exhaust structure of automobile armrest mold

Abstract

This utility model discloses a venting structure for an automotive armrest mold, relating to the field of mold manufacturing technology. The venting structure includes a mounting base plate and an ejector mechanism. An upper mold is mounted above the mounting base plate, and the upper mold has an internal cavity. Two sets of connecting plates are mounted above the mounting base plate. The ejector mechanism is mounted on the upper mold and drives the two sets of connecting plates to move. Through the coordinated use of the movable plate, fixed rod, spring, connecting plate one, slider, corrugated plate, and connecting plate two, when the melt is injected into the lower mold and generates significant natural pressure, it continuously drives the movable plate upwards. This causes the connecting plate one to drive the two sets of connecting plates two, which in turn causes the two sets of sliders to compress the connecting plates two. This allows adjustment of the opening size of the strip-shaped vent, preventing gas from being compressed and unable to escape, thus avoiding brown or black burn marks on the product surface and improving the product's appearance quality.

Description

Technical Field

[0001] This utility model relates to the field of mold manufacturing technology, and in particular to an exhaust structure for an automobile armrest mold. Background Technology

[0002] Chinese patent document CN219806424U discloses a mold venting structure, including an upper mold body. Through slots are formed at both ends of the top of the upper mold body. A plug is fitted inside each through slot, and an L-shaped venting steel bar is fixedly connected inside each plug. A connecting slot is formed between the through slots. When the gas in the mold cavity increases, it pushes the plug upwards. When the plug moves to one end of the connecting slot, the gas in the mold cavity flows into the through slot and then through the L-shaped venting steel bar inside the plug into the connecting slot. The gas entering the connecting slot flows into the first venting slot and pushes the piston block upwards. It then flows through the arc-shaped connecting slot to the top of the first venting slot and is discharged through the first vent sleeve. During venting, molten material does not enter the through slots. The sealing column is extracted from the second vent sleeve and the second venting slot, allowing the gas in the mold cavity to enter the second venting slot through multiple venting steel columns and be discharged from the second venting slot and the second vent sleeve. Manual venting is possible.

[0003] The mold venting structure mentioned above has a fixed venting hole opening size. When the melt is injected into the mold and generates natural pressure, the high-pressure melt may compress the gas at the fixed venting hole, preventing it from being discharged quickly. This results in brown or black burn marks on the product surface, reducing the product's appearance quality. Utility Model Content

[0004] The purpose of this invention is to provide an exhaust structure for an automotive armrest mold that can solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an exhaust structure for an automotive armrest mold, comprising:

[0006] The mounting base plate is equipped with an upper mold, which has a cavity inside. Two sets of connecting plates are installed above the mounting base plate.

[0007] The ejection mechanism is installed on the upper mold and is used to drive the movement of the two sets of connecting plates.

[0008] Preferably, the ejection mechanism includes a movable plate, a fixed rod, a spring, and a connecting plate. The movable plate is slidably installed inside the cavity, and the fixed rod is fixedly installed on the top of the movable plate. The spring is fixedly installed inside the cavity and is sleeved on the outer wall of the fixed rod. One end of the fixed rod extends to the top of the upper mold and is fixedly installed with the connecting plate.

[0009] Preferably, the fixing rod and the upper mold are slidably installed, and both sides of the connecting plate one are hinged to a set of connecting plates two.

[0010] Preferably, the top of the upper mold has two sets of strip-shaped exhaust ports, and a set of sliders is slidably installed inside each set of strip-shaped exhaust ports. The top of each set of sliders is hinged to a set of connecting plates. A set of corrugated plates is fixedly installed on the adjacent side of each set of sliders, and one end of each set of corrugated plates is fixedly installed in a set of grooves.

[0011] Preferably, a lower mold is fixedly installed on the top of the mounting base plate, and a mounting truss is fixedly installed on the top of the mounting base plate.

[0012] Preferably, a hydraulic rod is fixedly installed on the top of the mounting truss, the free end of the hydraulic rod extends into the interior of the mounting truss and is fixedly connected to the upper mold, and a feed pipe is fixedly installed on the top of the upper mold, one end of the feed pipe extends into the interior of the upper mold, and a shut-off valve is provided on the outer wall of the feed pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The exhaust structure of this car armrest mold, through the coordinated use of a movable plate, a fixed rod, a spring, a connecting plate one, a slider, a corrugated plate, and a connecting plate two, allows the molten material to continuously drive the movable plate upward when injected into the lower mold and generates significant natural pressure. This, in turn, causes the connecting plate one to drive the two sets of connecting plates two, which in turn drive the two sets of sliders to compress the connecting plates two. This allows for adjustment of the opening size of the strip-shaped exhaust port, preventing gas from being compressed and unable to escape from the exhaust port, thus avoiding brown or black burn marks on the product surface and improving the product's appearance quality. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a front perspective view of the present invention;

[0017] Figure 2 This is a perspective view of the upper mold of this utility model, in sectional view.

[0018] Figure 3 This is an enlarged view of part A of this utility model.

[0019] Reference numerals in the attached drawings: 1. Mounting base plate; 2. Mounting truss; 3. Lower mold; 4. Hydraulic rod; 5. Upper mold; 6. Ejection mechanism; 601. Movable plate; 602. Fixed rod; 603. Spring; 604. Connecting plate one; 7. Slider; 8. Cavity; 9. Strip-shaped exhaust port; 10. Corrugated plate; 11. Feed pipe; 12. Connecting plate two. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] Please see Figure 1-3 This utility model provides a technical solution: an exhaust structure for an automobile armrest mold, including a mounting base plate 1 and an ejection mechanism 6. An upper mold 5 is provided above the mounting base plate 1, and a cavity 8 is opened inside the upper mold 5. Two sets of connecting plates 12 are provided above the mounting base plate 1. The ejection mechanism 6 is provided on the upper mold 5 and is used to drive the two sets of connecting plates 12 to move.

[0022] The ejection mechanism 6 includes a movable plate 601, a fixed rod 602, a spring 603, and a connecting plate 604. The movable plate 601 is slidably installed inside the cavity 8, and the fixed rod 602 is fixedly installed on the top of the movable plate 601. The spring 603 is fixedly installed inside the cavity 8 and is sleeved on the outer wall of the fixed rod 602. One end of the fixed rod 602 extends to the top of the upper mold 5 and is fixedly installed with the connecting plate 604. When the melt is injected into the lower mold 3 and generates a large natural pressure, it will continuously drive the movable plate 601 to move upward, which in turn causes the connecting plate 604 to drive the two sets of connecting plates 12 to move, which in turn drives the two sets of sliders 7 to compress the connecting plates 12. This allows the opening size of the strip exhaust port 9 to be adjusted, preventing gas from being compressed at the strip exhaust port 9 and unable to be discharged, which would cause brown or black burn marks on the product surface and improve the appearance quality of the product.

[0023] The fixing rod 602 and the upper mold 5 are slidably installed, and both sides of the connecting plate 604 are hinged to a set of connecting plates 12.

[0024] The top of the upper mold 5 is provided with two sets of strip-shaped vents 9. A set of sliders 7 is slidably installed inside each set of strip-shaped vents 9. The top of each set of sliders 7 is hinged to a set of connecting plates 12. A set of corrugated plates 10 is fixedly installed on the adjacent side of each set of sliders 7. One end of each set of corrugated plates 10 is fixedly installed in a set of grooves.

[0025] The lower mold 3 is fixedly installed on the top of the mounting base plate 1, and the mounting truss 2 is fixedly installed on the top of the mounting base plate 1.

[0026] A hydraulic rod 4 is fixedly installed on the top of the mounting truss 2. The free end of the hydraulic rod 4 extends into the interior of the mounting truss 2 and is fixedly connected to the upper mold 5. A feed pipe 11 is fixedly installed on the top of the upper mold 5. One end of the feed pipe 11 extends into the interior of the upper mold 5. A shut-off valve is provided on the outer wall of the feed pipe 11.

[0027] Working principle: When work is required, the hydraulic rod 4 is activated. The free end of the hydraulic rod 4 drives the upper mold 5 to move downward and overlap with the lower mold 3. Molten material is injected into the lower mold 3 through the feed pipe 11. After the molten material is injected, the molten material will generate natural pressure. The natural pressure will enter the cavity 8 and continuously push the movable plate 601 upward. At this time, the fixed rod 602 will push the connecting plate 604 upward. Through the action of the strip-shaped vent 9 and the slider 7, the connecting plate 604 drives the two sets of connecting plates 12 to move, which in turn drives the two sets of sliders 7 to slide at the strip-shaped vent 9 and retract the wave plate 10, which can expose part of the strip-shaped vent 9. At this time, venting can be carried out through the two exposed sets of strip-shaped vent 9. The greater the natural pressure generated by the molten material, the larger the opening of the two sets of strip-shaped vent 9. After venting is completed, the compressed spring 603 rebounds and can close the two exposed sets of strip-shaped vent 9 again.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An exhaust structure of an automobile armrest mold characterized by comprising: include: Mounting base plate (1), an upper mold (5) is provided above the mounting base plate (1), a cavity (8) is provided inside the upper mold (5), and two sets of connecting plates (12) are provided above the mounting base plate (1). Ejection mechanism (6) is set on the upper mold (5) and is used to drive the two sets of connecting plates (12) to move. The ejection mechanism (6) includes a movable plate (601), a fixed rod (602), a spring (603), and a connecting plate (604). The movable plate (601) is slidably installed inside the cavity (8). The fixed rod (602) is fixedly installed on the top of the movable plate (601). The spring (603) is fixedly installed inside the cavity (8). The spring (603) is sleeved on the outer wall of the fixed rod (602). One end of the fixed rod (602) extends to the top of the upper mold (5) and is fixedly installed with the connecting plate (604). The fixing rod (602) and the upper mold (5) are slidably installed, and both sides of the connecting plate one (604) are hinged to a set of connecting plates two (12); The top of the upper mold (5) is provided with two sets of strip-shaped exhaust ports (9). A set of sliders (7) is slidably installed inside each set of strip-shaped exhaust ports (9). The top of each set of sliders (7) is hinged to a set of connecting plates (12). A set of corrugated plates (10) is fixedly installed on the adjacent side of each set of sliders (7). One end of each set of corrugated plates (10) is fixedly installed in a set of grooves.

2. The exhaust structure of a car armrest mold according to claim 1, characterized by: The lower mold (3) is fixedly installed on the top of the mounting base plate (1), and the mounting truss (2) is fixedly installed on the top of the mounting base plate (1).

3. The exhaust structure of a car armrest mold according to claim 2, characterized by: A hydraulic rod (4) is fixedly installed on the top of the mounting truss (2). The free end of the hydraulic rod (4) extends into the interior of the mounting truss (2) and is fixedly connected to the upper mold (5). A feed pipe (11) is fixedly installed on the top of the upper mold (5). One end of the feed pipe (11) extends into the interior of the upper mold (5). A shut-off valve is provided on the outer wall of the feed pipe (11).

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