Heat insulation pad with edge covering structure for large-bending-angle vehicle and hot pressing die

Abstract

The utility model discloses a large bending angle vehicle heat insulation pad with an edge covering structure and a hot pressing die, the large bending angle vehicle heat insulation pad comprises a bottom and a side edge part arranged on the side edge of the bottom, and the vehicle heat insulation pad comprises an upper surface layer, a fiber felt layer and a lower surface layer which are attached in sequence; the angle between the bottom and the side edge part is 8-12 degrees, the side edge part is provided with a removal part, and the outer edge of the removal part is provided with a cutting groove; and an edge covering structure is arranged on the outer edge of the side edge part. Compared with the prior art, the hot cutting die has the advantages that cutting and edge covering of the heat insulation pad of the product can be directly completed through the hot cutting die, and it is guaranteed that the edge of the product is not damaged, so that after hot cutting of the product is completed, the edge of the product does not need to be further processed. The angle between the side edge portion and the bottom portion is small and is close to a vertical state, the side cutting mode is adopted to complete grooving on the side edge portion in advance, workers can directly remove internal excess materials with hands during installation, and the machining efficiency and the product quality are improved.

Description

Technical Field

[0001] The utility model relates to a thermal insulation pad for a vehicle with a large bending angle and an edge-wrapped structure, belonging to the technical field of thermal insulation pads. Background Art

[0002] In order to improve the heat insulation and sound insulation performance of automotive thermal insulation pads, it is usually necessary to design a side baffle mechanism. Since the thermal insulation pad needs to match the structure of the vehicle, the angle between the side and the main body of the thermal insulation pad is usually close to vertical, especially the thermal insulation pad at the bottom of the truck cab. Furthermore, in order to ensure the installation of the thermal insulation pad, installation holes need to be opened on the side of the thermal insulation pad. These installation holes are processed in the mold by side cutting. Since the hot pressing direction of the thermal insulation pad is perpendicular to the main part of the hot pressing pad ( Figure 2 Therefore, if the mounting hole is to be opened on the side by side cutting, the requirements for the mold are high and the mold cost is increased.

[0003] After hot pressing, the edge of the thermal insulation pad also needs to avoid edge breakage, so a thermal insulation pad structure that can directly achieve edge locking after hot pressing is designed. On the other hand, the thermal insulation pad structure with self-locking edge needs to be realized by a mold with a specific structure, and the mold needs to complete the side cutting at one time during the hot pressing process. Utility Model Content

[0004] In order to solve the deficiencies of the prior art, the purpose of the utility model is to provide a large bending angle vehicle insulation pad and mold with an edge binding structure, mainly to solve the technical problem that the insulation pad in the prior art is prone to edge breakage.

[0005] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0006] A thermal insulation pad for a vehicle with a large bending angle and a edging structure, comprising a bottom and a side portion arranged on the side of the bottom, the thermal insulation pad for the vehicle comprising an upper surface layer, a fiber felt layer, and a lower surface layer which are bonded in sequence;

[0007] The angle between the bottom and the side portion is between 8 and 12 degrees, the side portion is provided with a cutout portion, and the outer edge of the cutout portion is provided with a cutout groove;

[0008] The outer edge of the side portion is provided with an edge binding structure.

[0009] As a preferred embodiment of the present invention, the aforementioned large bending angle vehicle insulation pad with an edging structure, the edging structure is that the upper surface layer extends from the outer edge of the side edge to the edging thermally bonded to the outer edge of the lower surface layer, and the edging wraps the outer edge of the fiber felt layer.

[0010] As a preferred embodiment of the present invention, the aforementioned large bending angle vehicle thermal insulation pad with an edge wrapping structure has an angle of 10 degrees between the bottom and the side.

[0011] As a preferred solution of the utility model, the aforementioned large bending angle vehicle thermal insulation pad with an edge wrapping structure has multiple removed portions, and the outer edges of all the removed portions are provided with cutting grooves.

[0012] As a preferred solution of the utility model, the aforementioned large bending angle vehicle thermal insulation pad with a edging structure has an integrated structure at the bottom and side portions.

[0013] As a preferred embodiment of the present invention, in the aforementioned large bending angle vehicle thermal insulation pad with a edging structure, the cutting depth of the groove is 60%-80% of the thickness of the thermal insulation pad where the groove is located.

[0014] A hot pressing mold is used for processing a large bending angle vehicle insulation pad with an edge binding structure as described in any of the above items, and is provided with an edge binding cutter for cutting the extension of the insulation pad.

[0015] As a preferred solution of the utility model, the aforementioned hot pressing mold, the edge cutting knife includes an inner bevel arranged inside and an outer bevel arranged outside, and the inclination angle of the inner bevel is smaller than the inclination angle of the outer bevel.

[0016] Beneficial effects achieved by the utility model:

[0017] Compared with the prior art, the utility model can directly complete the cutting and edging of the product's thermal insulation pad through a hot cutting mold, ensuring that the product's edge is not damaged, so that the mold can automatically achieve the edging of the product during hot pressing, and the edge part will not be layered and the base color will not be exposed. In this way, after the hot cutting is completed, the product's edge does not need to be further processed.

[0018] Secondly, the angle between the side and the bottom of the utility model is small, close to a vertical state, and the side cutting method can be used to complete the grooving processing on the side in advance. During installation, workers can directly remove the internal excess material by hand, thereby improving processing efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an axonometric drawing of the overall structure of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3 This utility model Figure 2 A partial enlarged schematic diagram of point B in the middle;

[0022] Figure 4 This is a partial enlarged view of the hot pressing die used for hemming the hemming structure;

[0023] The meanings of the reference numerals in the figure are: 1-bottom; 2-side portion; 3-removal portion; 4-upper surface layer; 5-fiber felt layer; 6-lower surface layer; 31-cutting groove; 41-edge portion; 7-edge cutting knife; 7a-inner bevel; 7b-outer bevel. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0025] like Figures 1 to 3 As shown: This embodiment discloses a thermal insulation pad for a vehicle with a large bending angle and a edging structure, comprising a bottom 1 and a side portion 2 arranged on the side of the bottom 1, the bottom 1 and the side portion 2 are an integrated structure, and the so-called integrated structure means that the bottom 1 and the side portion 2 are a complete piece of material and are hot-pressed in one step.

[0026] The heat insulation pad includes an upper surface layer 4, a fiber felt layer 5, and a lower surface layer 6 which are laminated in sequence, wherein the upper surface layer 4 and the lower surface layer 6 are usually made of fabric structure. The angle between the bottom 1 and the side portion 2 ( Figure 2 The angle A) is between 8-12 degrees, and the optimal angle is 10 degrees.

[0027] The side portion 2 is provided with a removal portion 3, and the outer edge of the removal portion 3 is provided with a groove 31, which is processed by a cutter in a hot pressing mold, and the function of the groove is to facilitate the operator to remove the removal portion 3. In addition, the cutting depth of the groove 31 is 60%-80% of the thickness of the thermal insulation pad where the groove 31 is located.

[0028] In order to prevent the edge of the thermal insulation pad from being broken, a edging structure is also provided on the outer edge of the side portion 2. Different from the edging structure in the prior art, the edging structure in this embodiment is produced by one-time hot pressing molding with a hot cutting mold. Specifically, the edging structure is that the upper surface layer 4 extends from the outer edge of the side portion 2 to the edging portion 41 that is thermally bonded to the outer edge of the lower surface layer 6, and the edging portion 41 wraps the outer edge of the fiber felt layer 5. Figure 4 , Figure 4 The hemming cutter 7 is located on one side of the upper surface layer 4 and is used to cut the thermal insulation pad during hot pressing, and to extrude the cut upper surface layer 4 to the lower surface layer 6 and complete the pasting by high temperature.

[0029] There are multiple removal portions 3 , and the outer edges of all the removal portions 3 are provided with cutting grooves 31 .

[0030] This embodiment also discloses a hot pressing mold for processing the above-mentioned large bending angle vehicle thermal insulation pad with an edging structure. The hot pressing mold is provided with an edging cutter 7 for cutting the extension of the thermal insulation pad.

[0031] The hemming cutter 7 includes an inner bevel 7a disposed inside and an outer bevel 7b disposed outside, and the inclination angle of the inner bevel 7a is smaller than the inclination angle of the outer bevel 7b. Figure 4 , Figure 4 The middle dotted line Q represents the inclination angles of the inner bevel 7a and the outer bevel 7b relative to the dotted line, and the dotted line Q represents the movement trajectory of the hot pressing mold in the opening and closing directions. During the processing, the cut edge can be squeezed through the inner bevel 7a to complete the bonding of the upper surface layer 4 and the lower surface layer 6, ensuring that the edge of the product is not damaged.

[0032] Compared with the prior art, this embodiment can directly complete the cutting and hemming of the product (thermal insulation pad) through the hot cutting mold to ensure that the edge of the product is not damaged. After the hot cutting of the product is completed, the mold automatically realizes the hemming of the product during hot pressing, and the edge part is not layered and the base color is not exposed. After the hot cutting of the product is completed, there is no need to further process the edge of the product.

[0033] Secondly, the angle between the side portion 2 and the bottom 1 in this embodiment is small and close to a vertical state. The side cutting method can be used to complete the processing of the groove 31 on the side portion 2 in advance. During installation, workers can directly remove the internal excess material by hand, thereby improving processing efficiency and product quality.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A thermal insulation pad for a vehicle with a large bending angle and a hemming structure, characterized in that: It comprises a bottom portion (1) and a side portion (2) arranged on the side of the bottom portion (1), and the vehicle thermal insulation pad comprises an upper surface layer (4), a fiber felt layer (5), and a lower surface layer (6) which are laminated in sequence; The angle between the bottom portion (1) and the side portion (2) is between 8 and 12 degrees, the side portion (2) is provided with a removal portion (3), and the outer edge of the removal portion (3) is provided with a cutting groove (31); The outer edge of the side portion (2) is provided with an edge binding structure.

2. A thermal insulation pad for a vehicle with a large bending angle and a edging structure according to claim 1, characterized in that: The edge binding structure is an edge binding portion (41) where the upper surface layer (4) extends from the outer edge of the side edge portion (2) to be thermally bonded to the outer edge of the lower surface layer (6), and the edge binding portion (41) wraps around the outer edge of the fiber felt layer (5).

3. The thermal insulation pad for a vehicle with a large bending angle and a hemming structure according to claim 1, characterized in that: The angle between the bottom portion (1) and the side portion (2) is 10 degrees.

4. The thermal insulation pad for a vehicle with a large bending angle and a hemming structure according to claim 1, characterized in that: There are a plurality of removal portions (3), and the outer edges of all the removal portions (3) are provided with cutting grooves (31).

5. The thermal insulation pad for a vehicle with a large bending angle and a hemming structure according to claim 1, characterized in that: The bottom portion (1) and the side portion (2) are an integrated structure.

6. The thermal insulation pad for a vehicle with a large bending angle and a hemming structure according to claim 1, characterized in that: The cutting depth of the cut groove (31) is 60%-80% of the thickness of the thermal insulation pad where the cut groove (31) is located.

7. A hot pressing mold for processing a large bending angle vehicle thermal insulation pad with a edging structure as claimed in any one of claims 1 to 6, characterized in that: An edge cutting knife (7) is provided for cutting the extension of the thermal insulation pad.

8. The hot pressing mold according to claim 7, characterized in that: The hemming cutter (7) comprises an inner bevel (7a) arranged inside and an outer bevel (7b) arranged outside, and the inclination angle of the inner bevel (7a) is smaller than the inclination angle of the outer bevel (7b).

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