A molding device for processing automobile sound-absorbing cotton

Abstract

The utility model relates to the technical field of molding devices, and discloses a molding device for automobile sound-absorbing cotton processing, including a lower mold and four legs fixedly installed on the lower surface of the lower mold, an upper mold is hinged on the outer surface of one side of the lower mold, and two openings are symmetrically penetrated through the bottom wall of the lower mold, and the inner walls of the two openings are slidably installed with square top blocks. The utility model drives the slide bar to move close to the square top block through a tension spring, and the slide bar drives the pressure column and the square top block to move upward through a driving groove and a driving column. When the square top block moves upward, the sound-absorbing cotton can be lifted up to prevent the sound-absorbing cotton from adhering to the mold surface, making it difficult to remove the sound-absorbing cotton, reducing the time for operators to remove the sound-absorbing cotton, and speeding up production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of molding devices, in particular to a molding device used for processing automobile sound-absorbing cotton. Background Art

[0002] There are many types of sound-absorbing cotton, one of the more common ones is foamed resin. The most common foamed resin is sponge. Among them, sound-absorbing cotton has a good heat insulation effect. After being pasted inside the car hood, it can effectively prevent the high temperature of the engine from being directly transmitted to the hood, thereby protecting the paint on the hood surface and preventing the hood from fogging up and affecting the vision on rainy days.

[0003] An existing molding device for automobile sound-absorbing cotton processing (publication number: CN211591037U) has at least the following disadvantages:

[0004] When the above patent is in use, the first half mold and the second half mold are closed together, and then the foaming resin, foaming aid and adhesive resin are flushed into the injection runner and the mold cavity through the runner nozzle, and the exhaust operation is performed using the electromagnetic air valve installed on the exhaust flow channel. The hemispherical protrusions on the surface of the mold cavity in the first half mold and the second half mold can be used to create dense silencer holes on the surface of the manufactured silencer cotton, making the manufacture of silencer cotton more convenient. Since the sound-absorbing cotton has a certain adhesion to the mold surface, when the mold is opened, the sound-absorbing cotton will adhere to the mold surface, making it difficult to remove the sound-absorbing cotton, thereby increasing the time of manual operation and reducing the efficiency of sound-absorbing cotton production. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a molding device for processing automobile sound-absorbing cotton.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A molding device for processing automobile sound-absorbing cotton comprises a lower mold and four supporting legs fixedly installed on the lower surface of the lower mold, an upper mold is hinged on the outer surface of one side of the lower mold, and the bottom wall of the lower mold is symmetrically penetrated with two openings, and the inner walls of the two openings are slidably installed with square top blocks, and the upper surface of the lower mold is symmetrically penetrated with two through holes, and the inner walls of the two through holes are slidably installed with pressure columns, and the two pressure columns are respectively arranged on both sides of the lower mold, and two limit sleeves are symmetrically fixedly installed on the lower surface of the lower mold, and sliding rods are slidably inserted in the interiors of the two limit sleeves, and two driving grooves are symmetrically provided at both ends of the sliding rod, and the bottom ends of the pressure column and the square top block are fixedly installed with driving columns, and the driving columns are respectively slidably installed with the inner walls of the two driving grooves.

[0008] As a further solution of the utility model, a retaining ring is fixedly installed on the outer surface of one end of the sliding rod close to the pressure column, and a tension spring is sleeved on the outer surface of the sliding rod. The two ends of the tension spring are respectively fixedly installed on the outer surfaces of the retaining ring and the limiting sleeve.

[0009] As a further solution of the utility model, a plurality of spiral protrusions are fixedly installed at equal intervals on the inner walls of the mold cavities of the lower mold and the upper mold, and the height of the spiral protrusions is lower than the depth of the mold cavities of the lower mold and the upper mold.

[0010] As a further solution of the utility model, two support plates are symmetrically fixedly installed on the outer surface of the upper mold near the hinge position, a fixing rod is fixedly installed between the two support plates, and a support rod is fixedly installed between the two legs near the fixing rod.

[0011] As a further solution of the utility model, an electric telescopic rod is rotatably mounted on the outer surface of the support rod, and the telescopic end of the electric telescopic rod is rotatably mounted on the outer surface of the fixed rod.

[0012] As a further solution of the utility model, an injection tube is fixedly installed on the upper surface of the upper mold, and the injection tube is connected to the mold cavity of the upper mold. An air hole is fixedly installed on the outer surface of one end of the upper mold, and the air hole is connected to the mold cavity of the upper mold.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The tension spring drives the slide bar to move close to the square top block, and the slide bar drives the pressure column and the square top block to move upward through the drive groove and the drive column. When the square top block moves upward, the sound-absorbing cotton can be lifted up to prevent the sound-absorbing cotton from sticking to the mold surface, making it difficult to remove the sound-absorbing cotton, thereby reducing the time for operators to remove the sound-absorbing cotton and speeding up production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a molding device for automobile sound-absorbing cotton processing proposed by the utility model;

[0016] Figure 2 This is a rear view structural schematic diagram of a molding device for automobile sound-absorbing cotton processing proposed by the utility model;

[0017] Figure 3 This is a bottom view structural schematic diagram of a molding device for automobile sound-absorbing cotton processing proposed by the utility model;

[0018] Figure 4 The utility model discloses a schematic diagram of a slide bar of a molding device for processing automobile sound-absorbing cotton.

[0019] In the figure: 1. lower mold; 2. upper mold; 3. injection tube; 4. air vent; 5. spiral protrusion; 6. support plate; 7. fixed rod; 8. electric telescopic rod; 9. support rod; 10. square top block; 11. pressure column; 12. limit sleeve; 13. slide rod; 14. retaining ring; 15. tension spring; 16. drive groove; 17. drive column. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Reference Figure 1-Figure 4A molding device for automobile sound-absorbing cotton processing comprises a lower mold 1 and four legs fixedly mounted on the lower surface of the lower mold 1. The outer surface of one side of the lower mold 1 is hinged with an upper mold 2. The bottom wall of the lower mold 1 is symmetrically penetrated with two openings. The inner walls of the two openings are slidably mounted with square top blocks 10. The upper surface of the lower mold 1 is symmetrically penetrated with two through holes. The inner walls of the two through holes are slidably mounted with pressure columns 11. The two pressure columns 11 are respectively arranged on both sides of the lower mold 1. The lower surface of the lower mold 1 is symmetrically fixed with two A limiting sleeve 12, a sliding rod 13 is slidably inserted inside the two limiting sleeves 12, two driving grooves 16 are symmetrically opened at both ends of the sliding rod 13, a driving column 17 is fixedly installed at the bottom end of the pressure column 11 and the square top block 10, and the driving column 17 is slidably installed with the inner walls of the two driving grooves 16 respectively, a retaining ring 14 is fixedly installed on the outer surface of the sliding rod 13 near one end of the pressure column 11, and a tension spring 15 is sleeved on the outer surface of the sliding rod 13, and the two ends of the tension spring 15 are fixedly installed with the retaining ring 14 and the outer surface of the limiting sleeve 12 respectively.

[0024] When demolding, the upper mold 2 and the lower mold 1 are separated by the retracting movement of the telescopic end of the electric telescopic rod 8. When the upper mold 2 is away from the pressure column 11, the tension spring 15 drives the slide bar 13 to move close to the square top block 10. The slide bar 13 drives the pressure column 11 and the square top block 10 to move upward through the driving groove 16 and the driving column 17. When the square top block 10 moves upward, the sound-absorbing cotton can be lifted up to prevent the sound-absorbing cotton from sticking to the mold surface, which makes it difficult to remove the sound-absorbing cotton, reduces the time for operators to remove the sound-absorbing cotton, and speeds up production efficiency.

[0025] In this embodiment, a plurality of spiral protrusions 5 are fixedly installed at equal intervals on the inner walls of the mold cavities of the lower mold 1 and the upper mold 2 , and the height of the spiral protrusions 5 is lower than the depth of the mold cavities of the lower mold 1 and the upper mold 2 .

[0026] The spiral protrusions 5 can form many spiral holes on the front and back sides of the sound-absorbing cotton. The spiral hole design on the sound-absorbing cotton can enhance the sound absorption effect to a certain extent. This design can increase the roughness and irregularity of the material surface, help scatter sound waves and increase the multiple reflections and refractions of sound in the material, thereby improving the energy loss and absorption effect of the sound.

[0027] In this embodiment, two support plates 6 are symmetrically fixedly installed on the outer surface of the upper mold 2 near the hinge position, a fixing rod 7 is fixedly installed between the two support plates 6, a support rod 9 is fixedly installed between the two legs near the fixing rod 7, and an electric telescopic rod 8 is rotatably installed on the outer surface of the support rod 9, and the telescopic end of the electric telescopic rod 8 is rotatably installed on the outer surface of the fixing rod 7.

[0028] When in use, the telescopic end of the electric telescopic rod 8 extends to drive the fixed rod 7 to move, and the fixed rod 7 drives the upper mold 2 to rotate downward through the support plate 6. When the upper mold 2 rotates to be completely in contact with the lower mold 1, the injection molding production of the sound-absorbing cotton can be carried out. This device facilitates the opening and closing of the lower mold 1 and the upper mold 2.

[0029] In this embodiment, an injection tube 3 is fixedly installed on the upper surface of the upper mold 2, and the injection tube 3 is connected to the mold cavity of the upper mold 2. An air vent 4 is fixedly installed on the outer surface of one end of the upper mold 2, and the air vent 4 is connected to the mold cavity of the upper mold 2.

[0030] The solenoid valve on the air hole 4 is used to exhaust the air inside the mold cavity to ensure that the sound-absorbing cotton produced is dense and has no pores. When demolding, the solenoid valve on the air hole 4 is opened to allow air to enter the mold cavity of the upper mold 2 to avoid the formation of negative pressure between the mold cavity of the upper mold 2 and the outer surface of the sound-absorbing cotton, causing the sound-absorbing cotton to be adsorbed on the upper mold 2.

[0031] It should be noted that when the utility model is in use, the extension of the telescopic end of the electric telescopic rod 8 drives the fixed rod 7 to move, and the fixed rod 7 drives the upper mold 2 to rotate downward through the support plate 6. When the upper mold 2 rotates to fully fit with the lower mold 1, the injection molding production of the sound-absorbing cotton can be carried out. The present device is convenient for opening and closing the lower mold 1 and the upper mold 2. During injection molding, the foaming resin, the foaming aid and the adhesive resin are injected into the mold cavity of the lower mold 1 and the upper mold 2 through the injection molding tube 3, and the air inside the mold cavity is discharged by the electromagnetic valve on the air vent 4 to ensure that the produced sound-absorbing cotton is dense and has no pores. When demolding, the telescopic end of the electric telescopic rod 8 is retracted. The upper mold 2 is moved to separate from the lower mold 1. When the upper mold 2 is away from the pressure column 11, the tension spring 15 drives the slide bar 13 to move close to the square top block 10. The slide bar 13 drives the pressure column 11 and the square top block 10 to move upward through the driving groove 16 and the driving column 17. When the square top block 10 moves upward, the sound-absorbing cotton can be lifted up to prevent the sound-absorbing cotton from adhering to the mold surface, which makes it difficult to remove the sound-absorbing cotton, reduces the time for operators to remove the sound-absorbing cotton, and speeds up production efficiency. Many spiral holes can be formed on the front and back sides of the sound-absorbing cotton through the spiral protrusion 5. The spiral hole design on the sound-absorbing cotton can play a certain role in enhancing the sound absorption effect. This design can increase the roughness and irregularity of the material surface, help scatter sound waves and increase multiple reflections and refractions of sound in the material, thereby improving the energy loss and absorption effect of the sound; it should be noted that when demolding, the solenoid valve on the air vent 4 is opened to allow air to enter the mold cavity of the upper mold 2, thereby avoiding the formation of negative pressure between the mold cavity of the upper mold 2 and the outer surface of the sound-absorbing cotton, causing the sound-absorbing cotton to be adsorbed on the upper mold 2.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A molding device for automobile sound-absorbing cotton processing, comprising a lower mold (1) and four legs fixedly mounted on the lower surface of the lower mold (1), characterized in that: The outer surface of one side of the lower mold (1) is hinged with the upper mold (2), the bottom wall of the lower mold (1) is symmetrically penetrated with two openings, the inner walls of the two openings are slidably mounted with square top blocks (10), the upper surface of the lower mold (1) is symmetrically penetrated with two through holes, the inner walls of the two through holes are slidably mounted with pressure columns (11), the two pressure columns (11) are respectively arranged on both sides of the lower mold (1), the lower surface of the lower mold (1) is symmetrically fixedly mounted with two limit sleeves (12), the interiors of the two limit sleeves (12) are slidably inserted with sliding rods (13), the two ends of the sliding rods (13) are symmetrically arranged with two driving grooves (16), the bottom ends of the pressure columns (11) and the square top blocks (10) are fixedly mounted with driving columns (17), and the driving columns (17) are respectively slidably mounted with the inner walls of the two driving grooves (16).

2. A molding device for automobile sound-absorbing cotton processing according to claim 1, characterized in that: A retaining ring (14) is fixedly mounted on the outer surface of one end of the slide rod (13) close to the pressure column (11), and a tension spring (15) is sleeved on the outer surface of the slide rod (13). The two ends of the tension spring (15) are respectively fixedly mounted on the outer surfaces of the retaining ring (14) and the limiting sleeve (12).

3. A molding device for automobile sound-absorbing cotton processing according to claim 2, characterized in that: The inner walls of the mold cavities of the lower mold (1) and the upper mold (2) are both equidistantly and fixedly mounted with a plurality of spiral protrusions (5), and the height of the spiral protrusions (5) is lower than the depth of the mold cavities of the lower mold (1) and the upper mold (2).

4. A molding device for automobile sound-absorbing cotton processing according to claim 1, characterized in that: Two support plates (6) are symmetrically fixedly mounted on the outer surface of the upper mold (2) on one side close to the hinge position, a fixing rod (7) is fixedly mounted between the two support plates (6), and a support rod (9) is fixedly mounted between two legs close to the fixing rod (7).

5. A molding device for automobile sound-absorbing cotton processing according to claim 4, characterized in that: An electric telescopic rod (8) is rotatably mounted on the outer surface of the support rod (9), and the telescopic end of the electric telescopic rod (8) is rotatably mounted on the outer surface of the fixed rod (7).

6. A molding device for automobile sound-absorbing cotton processing according to claim 1, characterized in that: An injection tube (3) is fixedly mounted on the upper surface of the upper mold (2), and the injection tube (3) is connected to the mold cavity of the upper mold (2). An air vent (4) is fixedly mounted on the outer surface of one end of the upper mold (2), and the air vent (4) is connected to the mold cavity of the upper mold (2).

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