Hot pressing die applied to heat insulation pad of special-shaped structure

Abstract

The utility model discloses a hot pressing die applied to a heat insulation pad with a special-shaped structure, which comprises an upper die and a lower die, the upper die is a flat plate die, at least one special-shaped concave cavity is arranged on the working end face of the lower die facing the upper die, the special-shaped concave cavity comprises a first groove cavity and a second groove cavity, and the first groove cavity is communicated with the second groove cavity. A second groove cavity is formed in the depth direction of the first groove cavity, the second groove cavity is communicated with the first groove cavity, and a first step is formed between the first groove cavity and the second groove cavity; according to the single-groove die, the die with a chamfer and a step structure is designed according to an actual product, a traditional upper-convex and lower-concave type die form is changed, a single-groove die with an upper flat plate die and a lower concave die is used, and the die is simple in structure, convenient to use and high in production efficiency. And the lower die is further provided with a rectangular die cavity, namely a step concave cavity, of a conventional heat insulation pad, the heat insulation pad of a special-shaped structure and the heat insulation pad of a conventional structure can be produced through one die, and the use range of the heat insulation pad hot-pressing die is widened.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the processing field of the heat -insulating pad of special shape structure, and specifically relates to a hot-pressing die applied to the heat -insulating pad of special shape structure. BACKGROUND

[0002] The common heat -insulating pad in the market is the regular cuboid structure, and the corresponding hot-pressing die is also the regular cuboid structure, and the hot-pressing die is the structure of upper convex and lower concave, and there is no corresponding die for the heat -insulating pad product with boss and angle cutting structure, if the traditional hot-pressing die is used to be refitted, the upper die has the protrusion, needs to set the corresponding boss and angle cutting structure in the protruding area, and the recess of the lower die also needs to set the corresponding step and angle cutting structure, so the workload of the refitting is big, and due to the high cooperation precision of the upper die and the lower die, it is difficult to guarantee the cooperation precision to refit the traditional upper die and lower die separately. CONTENT OF THE UTILITY MODEL

[0003] In view of the deficiencies described in the prior art, the utility model provides a hot-pressing concave-convex die applied to the heat -insulating pad of special shape structure.

[0004] The technical scheme adopted by the utility model is:

[0005] A hot-pressing die applied to the heat -insulating pad of special shape structure, including upper die and lower die, the upper die is flat die, the working end face of the lower die towards the upper die is provided with at least one special-shaped recess, the special-shaped recess includes first recess cavity and second recess cavity, the second recess cavity is arranged along the depth direction of the first recess cavity, the second recess cavity is communicated with the first recess cavity, and the first step is formed between the first recess cavity and the second recess cavity;The inclined part is arranged on the side wall of the first recess cavity, and the inclined part is inclined towards the second recess cavity.The hot-pressing die of single concave die is prepared by the second recess cavity and the first recess cavity to prepare the heat -insulating pad with step structure, and the first recess cavity has the angle cutting structure by the setting of the inclined part, and finally the heat -insulating pad with step and angle cutting structure is obtained.

[0006] As a preferred scheme of the utility model, the depth of the first recess cavity is not more than the depth of the second recess cavity, and the depth of the second recess cavity plus the depth of the first recess cavity is the main body thickness of the prepared heat -insulating pad.

[0007] As a preferred scheme of the utility model, the length of the first recess cavity is greater than the length of the second recess cavity, and the width of the first recess cavity is equal to the width of the second recess cavity, so that the step of the prepared heat -insulating pad is located at the side.

[0008] As a preferred scheme of the utility model, along the length direction of the first recess cavity, the first step is arranged on both sides of the second recess cavity, so that the step of the prepared heat -insulating pad is located on both sides.

[0009] As a preferred scheme of the utility model, the shortest distance value of the inclined part and the second groove cavity is greater than 0 along the length direction of the first groove cavity.

[0010] As a preferred scheme of the utility model, the inclined angle α of the inclined part is 165°-175°.

[0011] As a preferred scheme of the utility model, the shortest length between the two inclined parts and the length of the first groove cavity is 0.9-1.0 along the length direction of the first groove cavity.

[0012] As a preferred scheme of the utility model, the corner of the first step is provided with a chamfer structure. The chamfer structure is formed by chamfering, avoiding cutting the film material when packaging the heat insulation pad.

[0013] As a preferred scheme of the utility model, the second step formed by the first groove cavity and the working end face of the lower mold, the corner of the second step is provided with a chamfer structure. Also in order to cut the film material when packaging the heat insulation pad subsequently.

[0014] As a preferred scheme of the utility model, the working end face of the lower mold towards the upper mold is further provided with a stepped cavity. The difference between the stepped cavity and the special-shaped cavity structure is that the special-shaped cavity structure has an inclined part, and the stepped cavity does not have an inclined part, and other structures are the same.

[0015] The utility model discloses a mold with corner and step structure according to actual product design, changes the traditional convex lower concave mold form, uses the single concave groove mold of upper flat plate mold lower concave mold, and the lower mold is further provided with the rectangular mold cavity of conventional heat insulation pad, i.e. stepped cavity, one mold can produce special-shaped structure heat insulation pad and can produce conventional structure heat insulation pad, improves the use range of heat insulation pad hot-pressing mold. ACCURATE DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for ordinary skilled person in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0017] Figure 1 It is the top view of the upper mold of the utility model.

[0018] Figure 2 It is the bottom view of the upper mold of the utility model.

[0019] Figure 3 It is the front view of the lower mold of the utility model.

[0020] Figure 4 It is a top view of the lower mold of the utility model.

[0021] Figure 5 for Figure 4 BB cross-sectional view of the special-shaped cavity. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1:

[0024] A hot pressing die for a special-shaped structure thermal insulation pad comprises an upper die 1 and a lower die 2, wherein the upper die 1 is a flat die. Figures 1-3 As shown, the end surface of the upper mold 1 away from the lower mold 2 is provided with a connection hole for connecting to the hot press; Figure 4 As shown, the working end surface of the lower mold 2 facing the upper mold 1 is provided with a special-shaped cavity and a step cavity 6. The number of the special-shaped cavities and the number of the step cavities 6 are set according to actual needs, and the arrangement can be arranged in rows or in columns, or in both rows and columns.

[0025] The special-shaped cavity includes a first groove cavity 21 and a second groove cavity 22. Figure 4 and 5 As shown, a second groove cavity 22 is arranged along the depth direction of the first groove cavity 21, the second groove cavity 22 is communicated with the first groove cavity 21, and the depth of the first groove cavity 21 is not greater than the depth of the second groove cavity 22. In this embodiment, the depth of the first groove cavity 21 is less than the depth of the second groove cavity 22, and the length of the first groove cavity 21 is greater than the length of the second groove cavity 22, and the width of the first groove cavity 21 is equal to the width of the second groove cavity 22, so that a first step 3 is formed between the first groove cavity 21 and the second groove cavity 22, and there is a first step 3 on both sides of the second groove cavity 22, and a second step 5 is also formed on both sides of the first groove cavity 21 and the working end surface of the lower mold 2; the depth of the second step 5 is the depth of the first groove cavity 21, and the depth of the second groove cavity 22 plus the depth of the first groove cavity 21 is the main body thickness of the prepared thermal insulation pad.

[0026] The inclined part 4 is inclined towards the second recess cavity 22, and the inclination angle a of the inclined part 4 is 165°, preferably between 165° and 175°; the shortest distance between the inclined part 4 and the second recess cavity 22 along the length direction of the first recess cavity 21 is greater than 0, and the ratio of the shortest length between the two inclined parts 4 to the length of the first recess cavity 21 is 0.95, and the specific ratio can be changed according to the actual product, preferably between 0.9 and 1.0.

[0027] The first recess cavity 21 and the second recess cavity 22 finally form a mold cavity with a chamfered and stepped structure, and after adding a thermal insulation material into the mold cavity, the upper mold 1 and the lower mold 2 are pressed tightly and hot-pressed, and finally a thermal insulation pad core material with a chamfered and stepped structure is formed, and a film material is packaged in the mold cavity of the lower mold 2.

[0028] In order not to pierce the film material during packaging, a chamfered structure is arranged at the corner of the first step 3 and the corner of the second step 5. The chamfered structure is formed by chamfering, which avoids cutting the film material when packaging the thermal insulation pad.

[0029] Moreover, the difference between the step recess cavity 6 and the special-shaped recess cavity structure is only that the special-shaped recess cavity structure has an inclined part, while the step recess cavity 6 does not have an inclined part 4, and the other structures are the same.

[0030] Embodiment 2:

[0031] A hot-pressing mold applied to a special-shaped structure thermal insulation pad, only a special-shaped recess cavity is arranged on the lower mold, and the rest is the same as embodiment 1.

[0032] In the description of the specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A hot pressing die for a special-shaped structure thermal insulation pad, comprising an upper die (1) and a lower die (2), characterized in that: The upper die (1) is a flat die, and the lower die (2) is provided with at least one special-shaped cavity on the working end surface facing the upper die, wherein the special-shaped cavity comprises a first groove cavity (21) and a second groove cavity (22), wherein the second groove cavity (22) is provided along the depth direction of the first groove cavity (21), the second groove cavity (22) is communicated with the first groove cavity (21), and a first step (3) is formed between the first groove cavity (21) and the second groove cavity (22); an inclined portion (4) is provided on the side wall of the first groove cavity (21), and the inclined portion (4) is inclined toward the second groove cavity (22).

2. The hot pressing mold for special-shaped thermal insulation pads according to claim 1, characterized in that: The depth of the first groove cavity (21) is not greater than the depth of the second groove cavity (22).

3. The hot pressing die for special-shaped thermal insulation pads according to claim 1 or 2, characterized in that: The length of the first groove cavity (21) is greater than the length of the second groove cavity (22), and the width of the first groove cavity (21) is equal to the width of the second groove cavity (22).

4. The hot pressing die for special-shaped thermal insulation pads according to claim 3, characterized in that: Along the length direction of the first groove cavity (21), first steps (3) are provided on both sides of the second groove cavity (22).

5. The hot pressing die for special-shaped thermal insulation pads according to claim 4, characterized in that: Along the length direction of the first groove cavity (21), the shortest distance between the inclined portion (4) and the second groove cavity (22) is greater than 0.

6. The hot pressing die for special-shaped thermal insulation pads according to claim 5, characterized in that: The inclination angle α of the inclined portion (4) is 165°-175°.

7. The hot pressing die for special-shaped thermal insulation pads according to claim 6, characterized in that: Along the length direction of the first groove cavity (21), the ratio of the shortest length between the two inclined portions (4) to the length of the first groove cavity (21) is 0.9-1.

0.

8. The hot pressing die for special-shaped thermal insulation pads according to claim 4, characterized in that: A chamfered structure is provided at the corner of the first step (3).

9. The hot pressing die for special-shaped thermal insulation pads according to claim 8, characterized in that: The first groove cavity (21) and the working end surface of the lower die (2) form a second step (5), and a chamfered structure is provided at a corner of the second step (5).

10. The hot pressing die for special-shaped thermal insulation pads according to claim 9, characterized in that: A step cavity (6) is also provided on the working end surface of the lower die (2) facing the upper die.

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