Butyl sheet and aluminum foil lamination exhaust method

Abstract

The present invention provides a method for laminating and exhausting butyl sheets and aluminum foils, comprising the following steps: step S1, placing the butyl sheet on release paper; step S2, moving the butyl sheet to a laminating position with the aluminum foil; step S3, laminating the butyl sheet and the aluminum foil by rolling with the cooperation of a spherical tooling and an arc roller; step S4, synchronously rolling diamond patterns and rolling aluminum foil micropores with a diamond-patterned roller with barbed needles to produce a shock-absorbing plate. The present invention rolls and laminates the aluminum foil and the butyl sheet by the cooperation of a spherical tooling and an arc roller, so that the aluminum foil and the butyl sheet are gradually laminated from the middle to both sides, which helps to reduce the generation of bubbles; the diamond-patterned roller with barbed needles synchronously rolls and punctures the aluminum foil to produce micropores, which helps to discharge air in time, ensures that the aluminum foil and the butyl sheet are perfectly laminated, thereby improving the shock-absorbing effect.

Description

Technical Field

[0001] The invention relates to the technical field of radar damping plate production, and in particular to a butyl sheet and aluminum foil laminating exhaust method. Background Art

[0002] The shock-absorbing plate is a viscoelastic material attached to the inner wall of the car body steel plate, which plays a role in shock absorption and noise reduction of the car body.

[0003] The aluminum foil shock-absorbing plate is made of butyl sheet and aluminum foil laminated together. The shock-absorbing plate is relatively wide, and there is a parallelism deviation between the laminated surfaces of the butyl sheet and the aluminum foil, and there is a thickness deviation of the butyl sheet. When the two sides of the aluminum foil are first contacted and laminated with the butyl sheet, there is a hidden possibility that the air in the middle is wrapped and cannot be discharged, which reduces the shock-absorbing effect. Especially for radar shock-absorbing plates, ultrasonic radars need to be installed on the aluminum foil shock-absorbing plates. If there are bubbles between the laminated surfaces of the aluminum foil and the butyl sheet, the bubbles will expand during high-temperature electrophoresis of the OEM to form an interface between different media. The ultrasonic echo encounters this interface and is reflected. The reflected energy is received by the ultrasonic probe, forming a reflected wave clutter, causing the ultrasonic radar to misjudge and fail, resulting in serious driving safety.

[0004] Therefore, the inventors believe that it is necessary to provide a method for venting butyl sheet and aluminum foil lamination that can avoid the generation of bubbles when the butyl sheet and aluminum foil are laminated. Summary of the invention

[0005] In view of the defects in the prior art, the purpose of the present invention is to provide a butyl sheet and aluminum foil laminated exhaust method.

[0006] According to the present invention, a butyl sheet and aluminum foil lamination exhaust method is provided, comprising the following steps:

[0007] Step S1, placing a butyl sheet on a release paper;

[0008] Step S2, moving the butyl sheet to a laminating position with the aluminum foil;

[0009] Step S3, the butyl sheet and the aluminum foil are rolled and laminated by a spherical tooling and an arc roller;

[0010] Step S4, using a diamond roller with barbed needles to simultaneously roll diamond patterns and pierce aluminum foil micropores to produce a shock-absorbing plate.

[0011] Preferably, in the step S1, the butyl rubber material is fed into the feed port of the extruder, and the butyl sheet formed by extrusion is extruded through a die onto the release paper.

[0012] Preferably, in step S2, the butyl sheet is conveyed to a laminating position with the aluminum foil by a traction machine belt.

[0013] Preferably, in step S2, the upper surface of the butyl sheet is laminated to the lower surface of the coiled aluminum foil.

[0014] Preferably, in step S3, the spherical tooling is arranged below the release paper, the top surface of the spherical tooling is a semicircular plane, the semicircular plane gradually extends downward to form a spherical shape, and the butyl sheet and the aluminum foil are gradually rolled downward and laminated on the spherical shape.

[0015] Preferably, the spherical shape of the spherical tooling is SR1800-2000mm, and the curvature of the arc-shaped roller is consistent with the curvature of the spherical shape.

[0016] Preferably, the spherical fixture is fixedly mounted on a workbench, and positioning holes are provided on the semicircular plane of the spherical fixture.

[0017] Preferably, in step S3, rubber sleeves are provided at both ends of the arc roller.

[0018] Preferably, in step S4, a fine needle is provided at the center of each diamond pattern of the diamond pattern roller, and the needle only pierces the aluminum foil to form exhaust micropores.

[0019] Preferably, the method further comprises step S5, wherein the shock absorbing plate is sliced ​​by a slicer to form an aluminum foil radar shock absorbing plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention rolls and laminates the aluminum foil and the butyl sheet by cooperating with the spherical tooling and the arc roller, so that the aluminum foil and the butyl sheet are gradually laminated from the middle to both sides, which helps to reduce the generation of bubbles; the diamond-patterned roller with thorns synchronously pierces the aluminum foil to produce micropores, which helps to discharge air in time, ensures that the aluminum foil and the butyl sheet are perfectly laminated, and thus improves the shock absorption effect.

[0022] 2. The present invention laminates the aluminum foil and the butyl sheet in a spherical shape through a spherical tooling and an arc roller, that is, the butyl sheet is in a spherical shape after passing through the spherical tooling, and the aluminum foil is automatically flattened by the arc roller and then runs smoothly, thereby avoiding the phenomenon of different tightness in the middle and on both sides caused by inconsistent tension of the coiled aluminum foil, ensuring that the aluminum foil is spherically laminated from the middle of the butyl sheet to both sides, greatly reducing the potential for air to be wrapped.

[0023] 3. The present invention uses a diamond roller with barbed needles to roll the diamond pattern online while simultaneously piercing the aluminum foil with barbed needles to produce micropores, and the remaining air wrapped in each diamond pattern is exhausted through the aluminum foil micropores, so that the aluminum foil and the butyl sheet are perfectly laminated, and the resonance transmission is effectively reduced, which completely solves the problem of bubbles on the laminated surface of the aluminum foil and the butyl sheet, causing the ultrasonic radar to misjudge and fail, resulting in serious driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0025] Figure 1 This is a schematic diagram of the structure of the present invention mainly showing the lamination and rolling of butyl sheet and aluminum foil;

[0026] Figure 2 It is a schematic diagram of a diamond-patterned roller mainly embodied in the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the spherical tooling mainly embodied in the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the arc roller mainly embodied in the present invention;

[0029] Figure 5 It is a schematic diagram of the needles on the diamond-patterned roller mainly embodied in the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of the aluminum foil radar shock absorbing plate mainly embodied in the present invention;

[0031] Figure 7 The present invention mainly embodies the schematic diagram of the conventional production of aluminum foil shock-absorbing plates by laminating and rolling.

[0032] As shown in the figure:

[0033] Butyl sheet 1 Release paper 2 Aluminum foil 3

[0034] Round roller 4 Aluminum foil damping plate 5 Spherical tooling 6

[0035] Curved roller 7 Rubber sleeve 71 Diamond roller 8

[0036] Aluminum foil radar shock absorber 9 DETAILED DESCRIPTION

[0037] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0038] like Figure 1 and 2 As shown, a butyl sheet and aluminum foil laminating exhaust method provided by the present invention comprises the following steps:

[0039] Step S1, placing a butyl sheet 1 on a release paper 2;

[0040] Step S2, moving the butyl sheet 1 to a laminating position with the aluminum foil 3;

[0041] Step S3, the butyl sheet 1 and the aluminum foil 3 are rolled and laminated by the spherical tooling 6 and the arc roller 7;

[0042] Step S4, the diamond-patterned roller 8 with thorn needles is used to simultaneously roll the diamond patterns and puncture the aluminum foil micropores to produce a shock-absorbing plate.

[0043] In the present application, the aluminum foil 3 and the butyl sheet 1 are spherically laminated by rolling with a spherical tooling 6 and an arc roller 7, and then passed through a diamond roller 8 with barbed needles. After the aluminum foil 3 and the butyl sheet 1 are laminated, diamond patterns and aluminum foil micropores are rolled online synchronously to ensure that the aluminum foil at the center of each diamond pattern contains an exhaust micropore.

[0044] In step S1, butyl rubber is fed into the feed port of an extruder, and a butyl sheet 1 formed by extrusion is extruded through a die onto a release paper 2.

[0045] In step S2, the butyl sheet 1 is conveyed to a laminating position with the aluminum foil 3 by a traction machine belt. The upper surface of the butyl sheet 1 is laminated with the lower surface of the coiled aluminum foil 3.

[0046] like Figure 3 As shown, in step S3, the spherical fixture 6 is arranged below the release paper 2, the top surface of the spherical fixture 6 is a semicircular plane, the semicircular plane gradually extends downward to form a spherical shape, and the butyl sheet 1 and the aluminum foil 3 are gradually rolled downward on the spherical shape. The spherical shape of the spherical fixture 6 is SR1800-2000mm, and the thickness is determined by the width of the damping plate. The curvature of the arc roller 7 is consistent with the curvature of the spherical shape. The spherical fixture 6 is firmly installed on the workbench, and a positioning hole is set on the semicircular plane of the spherical fixture 6.

[0047] like Figure 4 As shown, in step S3, rubber sleeves 71 are provided at both ends of the arc roller 7, and elastic extrusion is used to ensure that the aluminum foil 3 and the butyl sheet 1 are fully laminated on the spherical tooling 6, and the laminating pressure is determined according to the materials of the butyl sheet 1 and the aluminum foil 3.

[0048] like Figure 5 As shown, in step S4, a fine needle is provided at the center of each diamond pattern of the diamond pattern roller 8, and the needle only pierces the aluminum foil 3 to form exhaust micropores. The rolling pressure of the diamond pattern roller 8 is determined according to the material of the butyl sheet 1 and the depth of the diamond pattern.

[0049] like Figure 6 As shown, the method further includes step S5, in which the damping plate is sliced ​​by a slicer to form an aluminum foil radar damping plate 9 for actual use.

[0050] like Figure 7As shown, generally, the aluminum foil 3 and the butyl sheet 1 are horizontally laminated by rolling with a round roller 4 to produce a conventional aluminum foil shock absorbing plate 5, which has the problem that the air in the middle is wrapped and cannot be discharged, thereby reducing the shock absorbing effect.

[0051] In the present application, the aluminum foil 3 and the butyl sheet 1 are rolled spherically by the spherical fixture 6 and the arc roller 7, that is, the butyl sheet 1 is spherical by the spherical fixture 6, and the aluminum foil 3 is automatically flattened by the arc roller 7 and runs smoothly, avoiding the phenomenon of different tightness in the middle and two sides caused by inconsistent tension of the coiled aluminum foil, ensuring that the aluminum foil 3 is spherically laminated from the middle to the two sides of the butyl sheet 1, greatly reducing the potential for air to be wrapped. If aluminum foil with micropores is directly used, or the aluminum foil micropores are first rolled online and then laminated with the sheet, there is a risk of glue overflowing from the micropores during lamination and rolling of the diamond pattern, and it is difficult to ensure that the aluminum foil in the center of each diamond pattern contains an exhaust micropore. The present application uses a diamond roller 8 with barbed needles to synchronously pierce the aluminum foil 3 to produce micropores when rolling the diamond patterns online, and the remaining air wrapped in each diamond pattern is exhausted through the aluminum foil micropores, so that the aluminum foil 3 and the butyl sheet 1 are perfectly laminated, and the resonance transmission is effectively reduced, which completely solves the problem of bubbles on the laminated surface of the aluminum foil 3 and the butyl sheet 1, causing the ultrasonic radar to misjudge and fail, thereby causing serious driving safety.

[0052] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0053] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A butyl sheet and aluminum foil laminating exhaust method, characterized in that: The following steps are involved: Step S1, placing a butyl sheet (1) on a release paper (2); Step S2, moving the butyl sheet (1) to a laminating position with the aluminum foil (3); Step S3, the butyl sheet (1) and the aluminum foil (3) are rolled and laminated together by a spherical tooling (6) and an arc roller (7); Step S4, using a diamond-patterned roller (8) with thorn needles to simultaneously roll diamond patterns and puncture aluminum foil micropores to produce a shock-absorbing plate; In the step S3, the spherical tooling (6) is arranged below the release paper (2), the top surface of the spherical tooling (6) is a semicircular plane, the semicircular plane gradually extends downward to form a spherical shape, and the butyl sheet (1) and the aluminum foil (3) are gradually rolled downward on the spherical shape to be laminated; In the step S4, a fine needle is provided at the center of each diamond pattern of the diamond pattern roller (8), and the needle only pierces the aluminum foil (3) to form exhaust micropores.

2. The butyl sheet and aluminum foil laminating exhaust method according to claim 1, characterized in that: In the step S1, a butyl rubber material is fed into the feed port of an extruder, and the butyl sheet (1) formed by extrusion is extruded through a die onto the release paper (2).

3. The butyl sheet and aluminum foil laminating exhaust method according to claim 1, characterized in that: In the step S2, the butyl sheet (1) is conveyed to a laminating position with the aluminum foil (3) via a traction machine belt.

4. The butyl sheet and aluminum foil laminating exhaust method according to claim 1, characterized in that: In the step S2, the upper surface of the butyl sheet (1) is laminated to the lower surface of the aluminum foil (3).

5. The butyl sheet and aluminum foil laminating exhaust method according to claim 1, characterized in that: The spherical shape of the spherical tooling (6) is SR1800-2000 mm, and the curvature of the arc-shaped roller (7) is consistent with the curvature of the spherical shape.

6. The butyl sheet and aluminum foil laminating exhaust method according to claim 1, characterized in that: The spherical tooling (6) is fixedly mounted on a workbench, and a positioning hole is provided on the semicircular plane of the spherical tooling (6).

7. The butyl sheet and aluminum foil laminating exhaust method according to claim 1, characterized in that: In step S3, rubber sleeves (71) are provided at both ends of the arc-shaped roller (7).

8. The butyl sheet and aluminum foil laminating exhaust method according to claim 1, characterized in that: The invention also comprises step S5, wherein the damping plate is sliced ​​by a slicer to form an aluminum foil radar damping plate (9).

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