Processing device of battery tray composite EPP

Abstract

The application discloses a kind of processing device of battery tray composite EPP, include: hydraulic press, the bottom of hydraulic press is equipped with positioning mould, top is equipped with grabbing and pressing unit, positioning mould is used to place the battery tray and EPP block to be processed, grabbing and pressing unit is used to grab the battery tray on positioning mould, and battery tray is pressed and combined on EPP block;Heating module, heating module is set outside hydraulic press;Conveying module, conveying module is connected with hydraulic press, heating module, for heating module is conveyed to the top of positioning mould, heating is carried out before battery tray pressing of EPP block on positioning mould, after heating is completed, conveying module conveys heating module to the outside of hydraulic press, then battery tray is pressed and combined on heated EPP block.The application adopts the mode of heating bonding composite, can fix battery tray and EPP coated with glue in advance together, constructs a high-efficiency "buffer barrier" to battery tray.

Description

Technical Field

[0001] This invention relates to the field of battery tray manufacturing and processing technology, and in particular to a processing apparatus for battery tray composite EPP. Background Technology

[0002] In today's rapidly developing new energy vehicle industry, the safety and durability of battery packs, as the core power source, remain paramount in design and manufacturing. The battery system design for the new generation of vehicles incorporates an innovative structural protection solution: a high-performance EPP (expanded polypropylene) impact-resistant material is laminated to the bottom of the steel-aluminum hybrid battery tray.

[0003] However, innovative structures often come with entirely new technological challenges. Achieving a high-strength, high-durability bond between the steel-aluminum pallet and the polymer EPP is key to the success of this solution. While mechanical connections are currently used, the vastly different material properties can introduce stress concentration points and increase weight. Therefore, a completely new processing method based on a symmetrical design is necessary. Summary of the Invention

[0004] According to an embodiment of the present invention, a processing apparatus for battery tray composite EPP is provided, comprising: The hydraulic press has a positioning mold at the bottom and a gripping and pressing unit at the top. The positioning mold is used to place the battery tray to be processed and the EPP block. The gripping and pressing unit is used to grip the battery tray on the positioning mold and press the battery tray onto the EPP block. Heating module, which is located on the outside of the hydraulic press; The conveying module is connected to the hydraulic press and the heating module. It is used to convey the heating module to the top of the positioning mold to heat the EPP block on the positioning mold before pressing the battery tray. After heating, the conveying module conveys the heating module to the outside of the hydraulic press and then presses the battery tray onto the heated EPP block.

[0005] Furthermore, the heating module includes a heater, which has multiple external infrared heating tubes inside.

[0006] Furthermore, the multiple infrared heating tubes are divided into multiple groups from beginning to end, and the power of each group of infrared heating tubes can be adjusted independently.

[0007] Furthermore, the heating module also includes: multiple temperature measuring units, each temperature measuring unit corresponding to a set of infrared heating tubes, used to detect the temperature of the corresponding set of infrared heating tubes.

[0008] Furthermore, the conveying module includes: A support frame is installed on the outside of the hydraulic press; A pair of support plates, one end of which is connected to both sides of the hydraulic press, and the other end of which is connected to both sides of the support frame. A pair of slide rails are respectively mounted on a pair of support plates; A pair of sliders, each slider being slidably connected to a pair of slide rails; Multiple connecting posts connect a pair of sliders and the heating module; The drive unit drives a pair of sliders to move on a pair of slide rails.

[0009] Furthermore, the driver module includes: A rack, which is fixed to one of the support plates and located on one side of one of the slide rails; The mounting bracket is connected to one of the sliders; The motor unit is mounted on a fixed frame and provides the driving force for rotational motion; The gear is located at the output end of the motor unit and meshes with the rack.

[0010] Furthermore, the conveying module also includes: The test piece is set on one of the sliders; An initial position sensor is installed at one end of one of the support plates to detect the workpiece and determine whether the heating module is in the initial position. A machining position sensor is installed at the other end of one of the support plates to detect the workpiece and determine whether the heating module is in the machining position.

[0011] Furthermore, the EPP blocks to be processed on the positioning mold are multiple, and each EPP block corresponds to a set of infrared heating tubes.

[0012] Furthermore, it also includes: multiple non-contact infrared thermometers, which are positioned opposite multiple EPP blocks, with each non-contact infrared thermometer detecting the adhesive layer temperature of the EPP block it is opposite.

[0013] Furthermore, the non-contact infrared thermometer is a short-wave infrared thermometer.

[0014] According to an embodiment of the present invention, a battery tray composite EPP processing apparatus is used to grip the battery tray to be processed by a gripping and pressing unit on a hydraulic press. Then, multiple EPP blocks pre-coated with adhesive are placed on a positioning mold. A heating module is conveyed by a conveying module to the multiple EPP blocks for heating, reactivating the cured adhesive on the multiple EPP blocks to a suitable viscosity and flowability, so that it can achieve sufficient molecular-level contact and wetting with the metal surface in the subsequent pressing process. Finally, after cooling, a strong bonding interface far exceeding the strength of the material itself is formed. Finally, the battery tray is pressed onto the EPP blocks by the gripping and pressing unit, completing the effective composite process.

[0015] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a processing apparatus for a battery tray composite EPP according to an embodiment of the present invention.

[0017] Figure 2 This is a partially enlarged schematic diagram of a processing apparatus for a battery tray composite EPP according to an embodiment of the present invention. Figure 1 .

[0018] Figure 3 This is a partially enlarged schematic diagram of a processing apparatus for a battery tray composite EPP according to an embodiment of the present invention. Figure 2 .

[0019] Figure 4 This is a schematic diagram of the structure of a battery tray composite EPP processing device according to an embodiment of the present invention, in which a module is placed above the EPP block. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0021] First, combine Figures 1-4 This invention describes a processing apparatus for bonding a battery tray to EPP according to an embodiment of the present invention, which is used for bonding a battery tray to an EPP block 400 and has a wide range of applications.

[0022] like Figures 1-4 As shown, an embodiment of the present invention provides a processing apparatus for battery tray composite EPP, comprising a hydraulic press 100, a heating module, and a conveying module.

[0023] Specifically, such as Figures 1-4As shown, the hydraulic press 100 has a positioning mold 101 at the bottom and a gripping and pressing unit 102 at the top. The positioning mold 101 is used to place the battery tray to be processed and the EPP block 400. The gripping and pressing unit 102 is used to grip the battery tray on the positioning mold 101 and press the battery tray onto the EPP block 400. During operation, the battery tray is first placed on the positioning mold 101 and gripped by the gripping and pressing unit 102. After the battery tray is gripped, multiple EPP blocks 400 pre-coated with adhesive are placed on the positioning mold 101.

[0024] Specifically, such as Figures 1-4 As shown, the heating module is located on the outside of the hydraulic press 100. The heating module includes a heater 201, which contains multiple infrared heating tubes 202 for heating. The heater 201 is connected to the conveying module. The wavelength of the infrared heating tubes 202 can be selected based on the infrared absorption spectrum of the EPP material and the adhesive, choosing a matching short-wave or medium-wave infrared heater 201. Short-wave infrared has strong penetrating power and is suitable for rapid heating; medium-wave infrared heating is gentler and provides better uniformity. Combining the two can balance efficiency and quality.

[0025] Furthermore, such as Figures 1-4 As shown, multiple infrared heating tubes are divided into groups from beginning to end. Each group of infrared heating tubes has its power independently adjustable. The heating surface is modularized, divided into multiple independently adjustable heating units. Through closed-loop control, the energy output in the central region can be actively suppressed, while the power in the edge region can be compensated for, thereby achieving "peak shaving and valley filling" of the entire heating surface and achieving precise temperature field balance. In this embodiment, there are four groups of infrared heating tubes, each heating one of four EPP blocks 400.

[0026] Furthermore, such as Figures 1-4 As shown, the heating module also includes: multiple temperature measuring units 203, each temperature measuring unit 203 corresponding to a set of infrared heating tubes 202, used to detect the temperature of the corresponding set of infrared heating tubes 202 and control the heating temperature.

[0027] Specifically, such as Figures 1-4 As shown, the conveying module is connected to the hydraulic press 100 and the heating module. It is used to convey the heating module to the top of the positioning mold 101 to heat the EPP block 400 on the positioning mold 101 before pressing the battery tray. After heating, the conveying module conveys the heating module to the outside of the hydraulic press 100 and then presses the battery tray onto the heated EPP block 400.

[0028] Furthermore, such as Figures 1-4As shown, the conveying module includes: a support frame 301, a pair of support plates 302, a pair of slide rails 303, a pair of sliders 304, multiple connecting columns 305, and a drive unit. The support frame 301 is located on the outside of the hydraulic press 100; one end of each pair of support plates 302 is connected to both sides of the hydraulic press 100, and the other end of each pair of support plates 302 is connected to both sides of the support frame 301; the pair of slide rails 303 are respectively mounted on the pair of support plates 302; the pair of sliders 304 are slidably connected to the pair of slide rails 303; the multiple connecting columns 305 connect the pair of sliders 304 and the heating module; the drive unit drives the pair of sliders 304 to move on the pair of slide rails 303. By controlling the operation of the drive unit, the pair of sliders 304 can move on the pair of slide rails 303, thereby driving the heating module to move via the multiple connecting columns 305.

[0029] Furthermore, such as Figures 1-4 As shown, the drive module includes a rack 306, a mounting bracket 307, a motor unit 308, and a gear (not shown in the figure). The rack 306 is fixed to one of the support plates 302 and located on one side of one of the slide rails 303; the mounting bracket 307 is connected to one of the sliders 304; the motor unit 308 is mounted on the mounting bracket 307 and provides the driving force for rotational movement; the gear is located at the output end of the motor unit 308 and meshes with the rack 306. By controlling the operation of the motor unit 308, the gear can be driven to rotate on the rack 306, thereby allowing a pair of sliders 304 to move on a pair of slide rails 303 via the mounting bracket 307.

[0030] Furthermore, such as Figures 1-4 As shown, the conveying module also includes: a test piece 310, an initial position sensor 311, and a processing position sensor 312. The test piece 310 is mounted on one of the sliders 304 and moves with the slider 304; the initial position sensor 311 is mounted at one end of one of the support plates 302 and is used to detect the test piece 310 and determine whether the heating module is in the initial position; the processing position sensor 312 is mounted at the other end of one of the support plates 302 and is used to detect the test piece 310 and determine whether the heating module is in the processing position.

[0031] Furthermore, such as Figures 1-4 As shown, there are multiple EPP blocks 400 to be processed on the positioning mold 101, and each EPP block 400 corresponds to a set of infrared heating tubes, thereby ensuring that the EPP can be effectively heated.

[0032] Furthermore, such as Figures 1-4As shown, an embodiment of the present invention provides a processing apparatus for composite EPP on a battery tray, which further includes: multiple non-contact infrared thermometers 500, each corresponding to multiple EPP blocks 400. Each non-contact infrared thermometer 500 detects the adhesive layer temperature of the EPP block 400 it is paired with. Instead of a fixed time setting, a temperature-feedback-based intelligent closed-loop control is employed. The system uses the real-time monitored adhesive layer temperature of the EPP block 400 as the basis for judgment, rather than a mechanical timer, avoiding inaccuracies in contact temperature measurement due to changes in the surface physical properties of the adhesive during the solid-to-liquid phase transition. For example, the control logic is as follows: when the coldest point temperature of the adhesive layer surface of the EPP block 400 is detected to reach 80°C, heating is immediately stopped or a bonding command is issued. This ensures that the endpoint of each heating cycle is based on the actual state of the adhesive, rather than a fixed time point, thus perfectly avoiding the risks of overheating or underheating, and fundamentally guaranteeing process consistency. The 500 non-contact infrared thermometer is a short-wave infrared thermometer, selected for its suitability for small targets and low temperature ranges. Its features include high precision, low error, and the ability to effectively eliminate interference from background radiation from the EPP substrate by adjusting emissivity parameters, thus accurately capturing the temperature signal of the adhesive layer itself.

[0033] Working principle: The battery tray to be processed is gripped by the gripping and pressing unit 102 on the hydraulic press 100. Then, multiple EPP blocks 400 pre-coated with adhesive are placed on the positioning mold 101. The heating module is conveyed to the multiple EPP blocks 400 by the conveying module for heating, which reactivates the cured adhesive on the multiple EPP blocks 400 to a suitable viscosity and flowability. Finally, the battery tray is pressed onto the EPP blocks 400 by the gripping and pressing unit 102 to complete the effective bonding.

[0034] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A processing apparatus for battery tray composite EPP, characterized in that, Include: A hydraulic press, wherein the bottom of the hydraulic press is provided with a positioning mold and the top is provided with a gripping and pressing unit. The positioning mold is used to place the battery tray to be processed and the EPP block. The gripping and pressing unit is used to grip the battery tray on the positioning mold and press the battery tray onto the EPP block. A heating module is disposed on the outside of the hydraulic press; A conveying module, connected to the hydraulic press and the heating module, is used to convey the heating module to the top of the positioning mold to heat the EPP block on the positioning mold before pressing the battery tray. After heating, the conveying module conveys the heating module to the outside of the hydraulic press and then presses the battery tray onto the heated EPP block.

2. The processing apparatus for battery tray composite EPP as described in claim 1, characterized in that, The heating module includes a heater, which has multiple external infrared heating tubes inside.

3. The processing apparatus for battery tray composite EPP as described in claim 2, characterized in that, The multiple infrared heating tubes are divided into several groups from beginning to end, and the power of each group of infrared heating tubes can be adjusted independently.

4. The processing apparatus for battery tray composite EPP as described in claim 3, characterized in that, The heating module further includes: multiple temperature measuring units, each of which corresponds to a group of infrared heating tubes and is used to detect the temperature of the corresponding group of infrared heating tubes.

5. The processing apparatus for battery tray composite EPP as described in claim 1, characterized in that, The conveying module includes: A support frame is disposed on the outside of the hydraulic press; A pair of support plates, one end of which is connected to both sides of the hydraulic press, and the other end of which is connected to both sides of the support frame; A pair of slide rails, the pair of slide rails being respectively disposed on the pair of support plates; A pair of sliders, the pair of sliders being slidably connected to a pair of slide rails; Multiple connecting posts are connected between the pair of sliders and the heating module; A drive unit drives the pair of sliders to move on the pair of slide rails.

6. The processing apparatus for battery tray composite EPP as described in claim 5, characterized in that, The driver module includes: A rack, the rack being fixed to one of the support plates and located on one side of one of the slide rails; A fixing frame is connected to one of the sliders; A motor unit, which is mounted on the fixed frame, provides the driving force for rotational motion; A gear is disposed at the output end of the motor unit and meshes with the rack.

7. The processing apparatus for battery tray composite EPP as described in claim 5, characterized in that, The conveying module further includes: The test piece is disposed on one of the sliders; An initial position sensor is disposed at one end of one of the support plates and is used to detect the test piece and determine whether the heating module is in the initial position. A processing position sensor is disposed at the other end of one of the support plates to detect the workpiece under test and determine whether the heating module is in the processing position.

8. The processing apparatus for battery tray composite EPP as described in claim 2, characterized in that, The positioning mold has multiple EPP blocks to be processed, and each EPP block corresponds to a set of infrared heating tubes.

9. The processing apparatus for battery tray composite EPP as described in claim 8, characterized in that, It also includes: multiple non-contact infrared thermometers, each non-contact infrared thermometer being positioned opposite multiple EPP blocks, and each non-contact infrared thermometer detecting the adhesive layer temperature of the EPP block opposite it.

10. The processing apparatus for battery tray composite EPP as described in claim 9, characterized in that, The non-contact infrared thermometer is a short-wave infrared thermometer.

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