Concave-convex die for manufacturing heat insulation pad with core material flush with single side of concentric-square-shaped frame

Abstract

The utility model discloses a concave-convex die for manufacturing a heat insulation pad with a core material flush with the single side of a concentric-square-shaped frame, which comprises an upper die and a lower die, at least one groove is arranged on the end face, facing the lower die, of the upper die, at least one boss is arranged on the end face, facing the upper die, of the lower die, and the grooves and the bosses are in one-to-one correspondence to form a core material extrusion area; the width of the groove is smaller than that of the concentric-square-shaped frame, and the length of the groove is smaller than that of the concentric-square-shaped frame. The upper die and the lower die which are provided with concave-convex matching structures are used for machining the heat insulation pad, in the vacuum hot pressing process, one end face of an extruded core material can be kept flush with the end face of the concentric-square-shaped frame, a plurality of concave-convex dies can be produced at a time, the manufacturing efficiency of the heat insulation pad is improved, and the production cost is reduced. And the bubbling risk of the double-faced adhesive tape of the heat insulation pad is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal insulation pad manufacturing equipment, and in particular relates to a concave-convex mold for manufacturing a thermal insulation pad whose core material is flush with a return frame on one side. Background Art

[0002] With the continuous increase in sales of new energy vehicles, global users are gradually increasing their cost competitiveness for new energy vehicles while ensuring the mileage and power battery safety. At present, the two end faces of the core material of the conventionally used heat insulation pad with return frame are recessed in the return frame. This is because during vacuum hot pressing and compounding, the two end faces of the core material are recessed in the return frame. Because there is a drop between the core material and the glue frame, after the whole surface is backed with glue, it will cause double-sided glue bubbles at the drop point. After the bubble is heated, it will affect the heat insulation bonding. In addition, the core material is recessed in the return frame. After backing with glue, only the double-sided glue on the surface of the glue frame starts the bonding effect, and the double-sided glue in the core area fails and cannot contact the battery pack. It is urgent to produce a heat insulation pad structure that can effectively contact the battery pack after backing with glue. Utility Model Content

[0003] In view of the deficiencies described in the above-mentioned prior art, the utility model provides a concave-convex mold for making a heat-insulating pad with a core material flush with a single side of a return frame, which is used to make a heat-insulating pad with a core material flush with a single side of a return frame.

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

[0005] A concave-convex mold for making a heat-insulating pad with a core material flush with a return-shaped frame on one side, comprising an upper mold and a lower mold, wherein the upper mold is provided with at least one groove on the end face facing the lower mold, and the lower mold is provided with at least one boss on the end face facing the upper mold, and the grooves and bosses correspond to each other to form a core material extrusion area; the width of the grooves is smaller than the width of the return-shaped frame, and the length of the grooves is smaller than the length of the return-shaped frame. The upper and lower molds cooperate to first perform vacuum hot pressing on the return-shaped frame and the core material on a hot press, and the upper and lower molds are mainly used to extrude the core material and the return-shaped frame. Through the provided groove and boss structure, the end face of the hot-pressed concave core material on the groove side can be flush with the return-shaped frame, so as to obtain a heat-insulating pad semi-finished product with the core material and the return-shaped frame flush on one side, and the structure with multiple bosses and grooves can produce multiple heat-insulating pad semi-finished products with the core material and the return-shaped frame flush on one side at a time.

[0006] As a preferred solution of the utility model, the height of the boss = the thickness of the return frame - the thickness of the core material + the depth of the groove.

[0007] As a preferred solution of the utility model, the corners of the groove and the corners of the boss are both chamfered to avoid breaking the film material, because some core materials are first packaged and then placed in the return frame.

[0008] As a preferred solution of the utility model, fixed mounting holes are provided on both the upper mold and the lower mold, and the fixed mounting holes are used to install the upper and lower molds to corresponding positions of the hot press.

[0009] The utility model uses upper and lower molds with concave-convex matching structures to process the thermal insulation pad. During the vacuum hot pressing process, one end face of the extruded core material can be kept flush with the end face of the return frame, and the concave-convex mold can produce multiple thermal insulation pads at a time to improve the production efficiency of the thermal insulation pad and reduce the risk of bubbling of the double-sided adhesive of the thermal insulation pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a structural schematic diagram of the upper mold of the utility model. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] Embodiment 1:

[0015] A concave-convex mold for making a heat insulation pad with a core material flush with a return frame on one side, comprising an upper mold 1 and a lower mold 2, wherein the upper mold 1 is provided with at least one groove 3 on the end surface facing the lower mold. Figure 1 As shown, this embodiment is demonstrated by taking four grooves as an example. The end surface of the lower mold 2 facing the upper mold is provided with at least one boss 4. The grooves 3 and bosses 4 correspond to each other to form a core material extrusion area. The width of the groove is smaller than the width of the return frame, and the length of the groove is smaller than the length of the return frame. In order to accurately extrude the core material into place, the height of the boss = the thickness of the return frame - the thickness of the core material + the depth of the groove. For the structure in which the film material is set first, the corners of the groove and the corners of the boss are set as chamfers, so as to avoid breaking the film material.

[0016] Because the upper and lower molds need to be installed on the hot press for use, fixed mounting holes 5 are provided on the upper and lower molds. The fixed mounting holes are used to install the upper and lower molds to the corresponding positions of the hot press. The upper mold 1 shows the structure of the fixed mounting holes. Figure 2 shown.

[0017] The upper and lower molds cooperate to perform vacuum hot pressing on the return frame and the core material on a hot press. The upper and lower molds are mainly used to extrude the core material and the return frame. The end face of the hot-pressed concave core material on the groove side can be flush with the return frame through the set groove and boss structure, so as to obtain a semi-finished thermal insulation pad with the core material and the return frame flush on one side. The structure with multiple bosses and grooves can produce multiple semi-finished thermal insulation pads with the core material and the return frame flush on one side at a time.

[0018] In the description of this specification, the description of reference terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation 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.

[0019] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A concave-convex mold for making a heat insulation pad with a core material flush with a single side of a return frame, comprising an upper mold and a lower mold, characterized in that: The end surface of the upper mold facing the lower mold is provided with at least one groove, and the end surface of the lower mold facing the upper mold is provided with at least one boss. The grooves and the bosses correspond one to one to form a core material extrusion area; the width of the groove is smaller than the width of the return frame, and the length of the groove is smaller than the length of the return frame.

2. The concave-convex mold for making a heat-insulating pad with a core material flush with a return frame on one side according to claim 1, characterized in that: The height of the boss = the thickness of the return frame - the thickness of the core material + the depth of the groove.

3. The concave-convex mold for making a heat insulation pad with a core material flush with a return frame on one side according to claim 2, characterized in that: The corners of the groove and the corners of the boss are both chamfered.

4. The concave-convex mold for making a heat-insulating pad with a core material flush with a return frame on one side according to claim 2 or 3, characterized in that: Both the upper mold and the lower mold are provided with fixing holes.

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