A hot press die for an automobile floor panel part

By introducing a cooling mechanism consisting of a water-cooled box, heat-conducting plate, thermoelectric cooling element, and radiator fan into the hot pressing mold for automotive floor parts, as well as a demolding mechanism consisting of lifting hydraulic rods and top plate, the problems of excessive mold temperature and low demolding efficiency are solved. This achieves efficient mold cooling and convenient demolding, extends mold life, and reduces production costs.

CN224322216UActive Publication Date: 2026-06-05NINGBO SHENGYUAN AUTOMOBILE MOULD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO SHENGYUAN AUTOMOBILE MOULD CO LTD
Filing Date
2025-07-18
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In the traditional hot pressing process of automotive chassis parts, excessively high mold temperatures lead to decreased part quality, accelerated mold wear, shortened service life, and low demolding efficiency.

Method used

The cooling mechanism employs a water-cooled box, heat-conducting plate, thermoelectric cooling element, and cooling fan, as well as a demolding mechanism consisting of lifting hydraulic rods and a top plate, to achieve rapid cooling and convenient demolding of the mold.

Benefits of technology

It effectively avoids wear and aging caused by excessive mold temperature, improves demolding efficiency, extends mold life, and reduces production costs and time loss.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224322216U_ABST
    Figure CN224322216U_ABST
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Abstract

The utility model relates to hot press mould technical field, and disclose a kind of hot press mould of automobile floor parts, including upper die, the lower die is installed in the lower of upper die, the bottom of lower die is equipped with cooling mechanism, the top surface inside of lower die is provided with pressure groove.The hot press mould of automobile floor parts, through the setting of cooling mechanism, when device is to be used, water cooling tank is installed on the bottom of lower die, heat conduction plate is installed on the both sides of water cooling tank, thermoelectric refrigeration piece is installed on the side of heat conduction plate, the liquid in the inside is cooled by the transmission of heat conduction plate, however, heat dissipation fan is also arranged on the outward side of thermoelectric refrigeration piece, the temperature drop rate can be accelerated, the effect of facilitating the cooling of mould is played, the temperature of mould itself is avoided to continuously increase, leading to the influence of the overall quality of part also can accelerate the wear and tear and aging of mould material, shorten mould service life.
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Description

Technical Field

[0001] This utility model relates to the field of hot pressing mold technology, and in particular to a hot pressing mold for automotive floor parts. Background Technology

[0002] As a key component of the car body, the automotive floor panel plays an important role in supporting, bearing load, and resisting road impacts during vehicle operation. Hot pressing has become a common method for manufacturing high-performance automotive floor panel parts due to its advantages such as improving the strength of metal materials and achieving lightweight parts.

[0003] In the traditional hot pressing process of automotive floor parts, the mold is in a high-temperature and high-pressure working state for a long time. Its own temperature will continue to rise. Excessive mold temperature will affect the overall quality of the parts and accelerate the wear and aging of the mold material, shortening the mold's service life. Moreover, after curing, strong adhesion will be generated. When hot pressing is completed and demolding is required, forced demolding will cause parts to deform and surface scratches, reduce product qualification rate, increase production costs and time loss, and result in low demolding efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this utility model is to provide a hot pressing mold for automotive floor parts, which solves the problems mentioned in the background art, such as excessively high temperature, which affects the quality of parts, shortens the service life of the mold, and makes demolding inconvenient, resulting in incomplete demolding and low efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a hot pressing mold for automotive floor parts, comprising an upper pressing mold, a lower pressing mold installed below the upper pressing mold, a cooling mechanism installed at the bottom of the lower pressing mold, a pressure groove provided inside the top surface of the lower pressing mold, a demolding mechanism installed inside the pressure groove, the cooling mechanism comprising a water-cooled box installed at the bottom of the lower pressing mold, heat-conducting plates fixedly connected to both sides of the water-cooled box, a thermoelectric cooling chip fixedly connected to one side of the heat-conducting plate, a cooling fan fixedly connected to the outer surface of the thermoelectric cooling chip, and a lifting hydraulic rod installed in the middle of the inner end of the pressure groove, a chassis fixedly connected to the top of the lifting hydraulic rod, and a top plate fixedly connected to the top of the chassis.

[0008] As a further embodiment of this utility model, a heat dissipation box is fixedly connected to both sides of the water-cooled box, and a storage battery is installed inside the heat dissipation box. The storage battery provides power for the device.

[0009] As a further embodiment of this utility model, a temperature controller is installed on the top of one of the heat dissipation boxes. The end of the temperature controller is electrically connected to one side of the thermoelectric cooling element through a power cord. The temperature controller is set to control the cooling temperature.

[0010] As a further embodiment of this utility model, a hollow heat dissipation plate is fixedly connected to the bottom of the water-cooled box, and a support block is fixedly connected to the bottom surface of the hollow heat dissipation plate. The setting of the hollow heat dissipation plate enhances the cooling effect of the water-cooled box.

[0011] As a further embodiment of this utility model, a lifting groove is provided in the middle of the bottom surface of the pressure groove. The interior of the lifting groove is slidably connected to the exterior of the lifting hydraulic rod. The lifting groove serves to retract and conceal the lifting hydraulic rod.

[0012] As a further embodiment of this utility model, a heat dissipation window is provided on one side of the heat dissipation box, and a dustproof net is installed inside the heat dissipation window. The dustproof net serves to dissipate heat while preventing dust.

[0013] As a further embodiment of this utility model, a temperature sensor is installed on one side edge of the water-cooled box, and the detection end of the temperature sensor is installed inside the water-cooled box. The temperature sensor is used to detect the temperature of the device in real time.

[0014] (III) Beneficial Effects

[0015] This utility model provides a hot pressing mold for automotive floor parts, which has the following advantages:

[0016] 1. The hot pressing mold for the automotive chassis part, through the setting of the cooling mechanism, has a water-cooled box installed at the bottom of the pressing mold when the device is to be used. Heat-conducting plates are installed on both sides of the water-cooled box, and a thermoelectric cooling fin is installed on one side of the heat-conducting plate. The thermoelectric cooling fin cools the internal liquid through the heat-conducting plate. However, a cooling fan is also set on the outward side of the thermoelectric cooling fin, which can accelerate the temperature drop rate and facilitate the cooling of the mold. This avoids the mold's own temperature from rising continuously, which would affect the overall quality of the part and accelerate the wear and aging of the mold material, thus shortening the mold's service life.

[0017] 2. The hot press mold for the automotive floor panel parts, through the setting of the demolding mechanism, has a lifting groove in the middle of the lower pressing mold that can retract to hold the lifting hydraulic rod when the device is to be used. The top of the lifting hydraulic rod is mounted on the chassis, and the chassis drags the top plate on top of it. When the lifting hydraulic rod rises, the top plate can push the part inside the pressing groove out from the middle, which facilitates demolding. This plays a role in facilitating demolding and avoids the problem of incomplete demolding due to the lack of a demolding device, which leads to high demolding difficulty, increased production costs and time loss, and low demolding efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cooling mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the demolding mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the disassembled upper and lower mold structure of this utility model.

[0022] In the diagram: 1. Upper pressing mold; 2. Lower pressing mold; 3. Cooling mechanism; 301. Water cooling box; 302. Heat conduction plate; 303. Thermoelectric cooling element; 304. Cooling fan; 4. Pressing groove; 5. Demolding mechanism; 501. Lifting hydraulic rod; 502. Chassis; 503. Top plate; 6. Heat dissipation box; 7. Battery; 8. Temperature controller; 9. Isolation heat dissipation plate; 10. Support block; 11. Lifting groove; 12. Heat dissipation window; 13. Dustproof net; 14. Temperature sensor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1 to 4This utility model provides a technical solution for a hot pressing mold for automotive floor parts: a hot pressing mold for automotive floor parts, including an upper pressing mold 1, a lower pressing mold 2 installed below the upper pressing mold 1, a cooling mechanism 3 installed at the bottom of the lower pressing mold 2, a pressing groove 4 provided inside the top surface of the lower pressing mold 2, a demolding mechanism 5 installed inside the pressing groove 4, the cooling mechanism 3 including a water-cooled box 301 installed at the bottom of the lower pressing mold 2, heat-conducting plates 302 fixedly connected inside both sides of the water-cooled box 301, a thermoelectric cooling chip 303 fixedly connected to one side of the heat-conducting plate 302, a cooling fan 304 fixedly connected to the outer surface of the thermoelectric cooling chip 303, and a lifting hydraulic rod 501 installed in the middle of the inner end of the pressing groove 4, a chassis 502 fixedly connected to the top of the lifting hydraulic rod 501, and a top plate 503 fixedly connected to the top of the chassis 502;

[0025] Please see Figure 2 The water-cooled box 301 is fixedly connected to the two sides of the heat dissipation box 6. The heat dissipation box 6 is equipped with a storage battery 7. The storage battery 7 provides power for the device.

[0026] Please see Figure 2 One of the heat dissipation boxes 6 has a thermostat 8 installed on its top. The end of the thermostat 8 is electrically connected to one side of the thermoelectric cooling chip 303 via a power cord. The thermostat 8 is used to control the temperature of the cooling chip.

[0027] Please see Figure 2 The bottom of the water-cooled box 301 is fixedly connected to a heat dissipation plate 9, and the bottom surface of the heat dissipation plate 9 is fixedly connected to a support block 10. The heat dissipation plate 9 is used to increase the cooling effect of the water-cooled box 301.

[0028] Please see Figure 3 A lifting groove 11 is provided in the middle of the bottom surface of the pressure groove 4. The inside of the lifting groove 11 is slidably connected to the outside of the lifting hydraulic rod 501. The lifting groove 11 serves to retract and hide the lifting hydraulic rod 501.

[0029] Please see Figure 2 A heat dissipation window 12 is provided on one side of the heat dissipation box 6. A dustproof net 13 is installed inside the heat dissipation window 12. The dustproof net 13 serves to dissipate heat while preventing dust.

[0030] Please see Figure 1 A temperature sensor 14 is installed on one side edge of the water-cooled box 301. The detection end of the temperature sensor 14 is installed inside the water-cooled box 301. The temperature sensor 14 is used to detect the temperature of the device in real time.

[0031] In this invention, the working steps of the device are as follows:

[0032] First step: A water-cooled box 301 is installed at the bottom of the pressing mold 2. Heat-conducting plates 302 are installed on both sides of the water-cooled box 301. A thermoelectric cooling chip 303 is installed on one side of the heat-conducting plate 302. The thermoelectric cooling chip 303 cools the internal liquid through the heat-conducting plate 302. A cooling fan 304 is also provided on the outward side of the thermoelectric cooling chip 303 to accelerate the rate of temperature drop.

[0033] The second step: A lifting groove 11 is set in the middle pressing groove 4 of the lower pressing mold 2 to accommodate the retractable lifting hydraulic rod 501. A base plate 502 is installed on the top of the lifting hydraulic rod 501. The base plate 502 drags the top plate 503 on its top. When the lifting hydraulic rod 501 rises, the top plate 503 can push the parts inside the pressing groove 4 out from the middle, which is convenient for demolding.

[0034] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0035] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot pressing mold for automotive floor parts, comprising an upper pressing mold (1), characterized in that: A lower pressing mold (2) is installed below the upper pressing mold (1). A cooling mechanism (3) is installed at the bottom of the lower pressing mold (2). A pressing groove (4) is provided inside the top surface of the lower pressing mold (2). A demolding mechanism (5) is installed inside the pressing groove (4). The cooling mechanism (3) includes a water-cooled box (301) installed at the bottom of the pressing mold (2). Heat-conducting plates (302) are fixedly connected to the inside of both sides of the water-cooled box (301). A thermoelectric cooling chip (303) is fixedly connected to one side of the heat-conducting plate (302). A cooling fan (304) is fixedly connected to the outer surface of the thermoelectric cooling chip (303). The demolding mechanism (5) includes a lifting hydraulic rod (501) installed in the middle of the inner end of the pressure groove (4). The top of the lifting hydraulic rod (501) is fixedly connected to a chassis (502), and the top of the chassis (502) is fixedly connected to a top plate (503).

2. The hot pressing mold for an automobile floor part according to claim 1, characterized in that: The water-cooled box (301) is fixedly connected to two sides of a heat dissipation box (6), and a storage battery (7) is installed inside the heat dissipation box (6).

3. The hot pressing mold for an automobile floor part according to claim 2, characterized in that: One of the heat dissipation boxes (6) has a thermostat (8) installed on its top, and the end of the thermostat (8) is electrically connected to one side of the thermoelectric cooling chip (303) via a power cord.

4. The hot pressing mold for an automobile floor part according to claim 1, characterized in that: The bottom of the water-cooled box (301) is fixedly connected to a heat dissipation plate (9), and the bottom surface of the heat dissipation plate (9) is fixedly connected to a support block (10).

5. A hot pressing mold for an automotive floor panel part according to claim 1, characterized in that: The bottom surface of the pressure groove (4) is provided with a lifting groove (11), and the interior of the lifting groove (11) is slidably connected to the exterior of the lifting hydraulic rod (501).

6. A hot pressing mold for an automotive floor panel part according to claim 2, characterized in that: The heat dissipation box (6) has a heat dissipation window (12) on one side, and a dustproof net (13) is installed inside the heat dissipation window (12).

7. A hot pressing mold for an automotive floor panel part according to claim 1, characterized in that: A temperature sensor (14) is installed on one side edge of the water-cooled box (301), and the detection end of the temperature sensor (14) is installed inside the water-cooled box (301).