Novel self-ejection type die-cutting knife die for battery heat insulation pad
By using a combined structure of elastic parts and pressing plates during the die-cutting process of the insulation pad, the four-corner crease problem of the insulation pad caused by traditional elastic cotton die-cutting is solved, reducing production costs and improving the product qualification rate.
Patent Information
- Application Number
- CN202420938357.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-04-30
AI Technical Summary
In the traditional cotton-padded die-cutting process, the four corners of the heat insulation pad are prone to creases, and the cotton-padded consumption is high, which affects the product qualification rate and production cost.
The new self-elastic die cutting tool die is adopted, and the structure composed of elastic parts and press plates is used to replace the traditional elastic cotton to ensure that the insulation pad can be ejected simultaneously after die cutting to avoid four-corner creases.
By using press plates and elastic parts, the die cutting cost is reduced, the creases at the four corners of the insulation pad are avoided, and the product pass rate is improved.
Smart Images
Figure CN222792312U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of die-cutting of power battery heat insulation pads, and specifically relates to a novel self-elastic die-cutting knife die for battery heat insulation pads. Background Art
[0002] With the continuous increase in sales of new energy vehicles, competition in the thermal insulation pad market has gradually intensified, and requirements for product cost reduction and product appearance have become stricter. It is particularly important to control the production process of thermal insulation pads and optimize tooling. The die-cutting process plays an important role in this process. The consumption of die-cutting auxiliary materials such as elastic cotton and the life of die-cutting cutters seriously affect the processing cost. In addition, in the traditional cotton-elasticating process, due to the soft nature of the elastic cotton itself and the force problem during the die-cutting process, the elastic cotton at the four corners of the knife frame is stuck in the knife frame during the rebound process of the thermal insulation pad after die-cutting. The force here is the greatest, causing the thermal insulation pad to rebound first in the middle and then at the four corners when it rebounds after die-cutting, resulting in the thermal insulation pad not rebounding at the same time as a whole, which can easily cause product creases at the four corners of the thermal insulation pad, seriously affecting the product qualification rate. Utility Model Content
[0003] The utility model aims at solving the technical problems that the use of elastic cotton in the traditional die-cutting of thermal insulation pads easily causes creases at the four corners of the thermal insulation pad products and the elastic cotton itself has high consumption. The utility model provides a new self-elastic die-cutting knife die for battery thermal insulation pads, and uses a structure composed of elastic parts and a pressure plate to replace the original elastic cotton.
[0004] The technical solution adopted by the utility model is:
[0005] A new self-elastic die-cutting knife die for battery thermal insulation pads includes a die die substrate, a plurality of knife cavities and cutters are arranged on the die die substrate, the cutters correspond to the knife cavities one by one, and the cutters are arranged around the knife cavities, a plurality of elastic parts are arranged in the knife cavities, the top of each elastic part is connected to a pressing plate, and the pressing plate in a natural state and a pressing plate in an extruded state do not exceed the cutter. The pressing plate replaces the original consumable cotton, and no consumables are used, which reduces the die-cutting cost. The pressing plate and elastic parts are used to assist the die-cutting of the thermal insulation pad, and the thermal insulation pad after die-cutting can be synchronously bounced up, and no creases will appear at the four corners.
[0006] As a preferred solution of the utility model, an elastic mounting hole is provided at the bottom of the knife cavity, and the elastic member is installed in the elastic mounting hole.
[0007] As a preferred solution of the utility model, the elastic member is a spring positioning pin, which can keep the top surface at the same height and ensure that the pressing plate can rebound after being compressed, so as to eject the die-cut thermal insulation pad synchronously.
[0008] As a preferred solution of the utility model, the side wall of the pressing plate is in smooth contact with the inner wall of the knife cavity, and the pressing plate is made of a lightweight material. The pressing plate moves along the inner wall of the knife cavity to maximize contact with the die-cutting heat insulation pad, so that the whole body bounces synchronously, avoiding creases and improving the product qualification rate.
[0009] As a preferred solution of the utility model, the pressing plate is a PC board, a PP board, a wooden board or a resin board.
[0010] As a preferred solution of the utility model, a mounting hole is provided on the knife die substrate.
[0011] The utility model uses a pressing plate to replace the original consumable cotton elastic, no longer uses consumables, reduces the die-cutting cost, uses the pressing plate and elastic parts to assist in die-cutting the heat insulation pad, and the heat insulation pad can be synchronously bounced after die-cutting, and no creases will appear at the four corners. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] 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.
[0013] Figure 1 It is a structural schematic diagram of the knife die substrate of the utility model.
[0014] Figure 2 The utility model is a schematic diagram of the assembly of the knife die base plate, the pressing plate and the elastic member. DETAILED DESCRIPTION
[0015] 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.
[0016] Example:
[0017] A new self-elastic die-cutting die for battery thermal insulation pads, such as Figure 1As shown, it includes a knife die substrate 1, a mounting hole 7 is provided on the knife die substrate 1, a plurality of knife cavities 2 and cutters 3 are provided on the knife die substrate 1, the cutters 3 correspond to the knife cavities 2 one by one, and the cutters are arranged around the knife cavities 2. This embodiment is demonstrated by taking two rows and four columns as an example. A plurality of elastic members 4 are provided in the knife cavity 2, and the elastic members are spring locating pins. The spring locating pins can keep the top surface at the same height and ensure that the pressure plate can rebound after being compressed, so as to eject the die-cut thermal insulation pad synchronously.
[0018] In this embodiment, six elastic mounting holes 6 are provided at the bottom of the knife cavity 2, and six elastic members 4 are installed in the six elastic mounting holes. The top of each elastic member 4 is connected to the pressing plate 5, and the pressing plate in the natural state and the pressing plate in the extruded state do not exceed the cutter, that is, the outer end surface of the pressing plate does not exceed the end surface of the cutter, and the side wall of the pressing plate 5 is in smooth contact with the inner wall of the knife cavity. The pressing plate moves along the inner wall of the knife cavity to contact the die-cutting heat insulation pad to the greatest extent, so that the whole body is synchronously bounced, avoiding creases and improving the product qualification rate.
[0019] The pressing plate is made of a lightweight material, such as a PC board, a PP board, a wooden board or a resin board. The pressing plate replaces the original consumable elastic cotton, and no consumables are used, thereby reducing the die-cutting cost. The pressing plate and elastic parts are used to assist in die-cutting the thermal insulation pad. After die-cutting, the thermal insulation pad can be synchronously bounced up, and no creases will appear at the four corners.
[0020] 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.
[0021] 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 new self-elastic die-cutting die for battery thermal insulation pads, characterized in that: The invention comprises a knife die substrate (1), on which a plurality of knife cavities (2) and cutters (3) are arranged, the cutters (3) corresponding to the knife cavities (2) one by one, and the cutters are arranged around the knife cavities (2), a plurality of elastic members (4) are arranged in the knife cavities (2), the top of each elastic member (4) is connected to a pressing plate (5), and the pressing plate in a natural state and in an extruded state does not extend beyond the cutters.
2. The novel self-elastic die-cutting die for battery thermal insulation pad according to claim 1 is characterized in that: An elastic mounting hole is provided at the bottom of the knife cavity (2), and the elastic member (4) is mounted in the elastic mounting hole.
3. The new self-elastic die-cutting die for battery thermal insulation pad according to claim 2 is characterized by: The elastic member is a spring positioning pin.
4. The novel self-elastic die-cutting die for battery thermal insulation pad according to claim 2 or 3, characterized in that: The side wall of the pressing plate (5) is in smooth contact with the inner wall of the knife chamber, and the pressing plate is made of a lightweight material.
5. The novel self-elastic die-cutting die for battery thermal insulation pad according to claim 4 is characterized in that: The pressing plate is a PC board, a PP board, a wooden board or a resin board.
6. The novel self-elastic die-cutting die for battery thermal insulation pad according to claim 4 is characterized by: A mounting hole (7) is provided on the knife die base plate (1).