Profile extrusion forming die for machining vehicle energy absorption box

By designing a multi-cavity profile extrusion molding die, the problems of discontinuous production process and die offset in the processing of vehicle energy-absorbing boxes were solved, achieving an efficient and stable molding process and improving production efficiency and product quality.

CN224010964UActive Publication Date: 2026-03-20SUZHOU VOTEL PRECISION MOULD MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

In the current manufacturing of vehicle energy-absorbing boxes, the single-cavity structure leads to a discontinuous production process, affecting efficiency, and mold misalignment issues affect product quality stability.

Method used

The profile extrusion die with a multi-cavity structure restricts the movement trajectory through the cooperation of the limiting rod and the counterweight block. Combined with the drive motor driving the lower die to rotate and the support block ejecting the formed part, it achieves precise mold closing and efficient production.

Benefits of technology

It improves production efficiency, ensures mold stability and molding accuracy, avoids mold misalignment, and extends mold life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of energy absorption box forming, in particular to a profile extrusion forming die for machining a vehicle energy absorption box. According to the technical scheme, the device comprises a machining panel and a first hydraulic rod, and a lower die is arranged on the machining panel; a mounting frame is mounted on an output shaft of the first hydraulic rod through a balancing weight, and an upper mold is mounted on the bottom end face of the mounting frame. A mounting block is mounted on the first hydraulic rod; a second hydraulic rod is arranged on the bottom end face of the machining panel, and a supporting disc is arranged on an output shaft of the second hydraulic rod. A transverse plate is mounted on the rear end face of the mounting block and mounted on the machining panel through a supporting plate. A limiting rod is fixed to the bottom end face of the mounting block and connected into the balancing weight in a sleeved mode. According to the energy absorption box forming device, forming of an energy absorption box is met, a mold with a plurality of cavities is adopted for rotary continuous machining during forming, and the mold is supported during forming to avoid deviation during machining.
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Description

Technical Field

[0001] This utility model relates to the field of energy-absorbing box molding technology, specifically to a profile extrusion molding die for processing vehicle energy-absorbing boxes. Background Technology

[0002] As a core component of the automotive safety system, the vehicle energy absorption box plays a vital role in absorbing impact energy during a collision, thereby effectively protecting the lives of passengers and the integrity of the vehicle's structure.

[0003] In the manufacturing process of vehicle energy-absorbing boxes, profiles are often extruded using molds. However, current molding operations mostly employ a single-cavity structure for material loading and molding. After molding, the workpiece must be removed before subsequent injection molding can begin. This significantly impacts the continuity of the production process, leading to low production efficiency. Furthermore, the high pressure during extrusion can easily cause mold misalignment, negatively affecting product quality and stability. Therefore, the existing manufacturing process for vehicle energy-absorbing boxes still requires improvement. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a profile extrusion molding die for processing vehicle energy-absorbing boxes, thus solving the problems mentioned in the background art.

[0005] The solution of this utility model to the above-mentioned technical problems is as follows:

[0006] A profile extrusion molding die for processing vehicle energy-absorbing boxes includes a processing panel and a first hydraulic rod, wherein a lower die is provided on the processing panel;

[0007] A mounting bracket is installed on the output shaft of the first hydraulic rod via a counterweight, and an upper mold is installed on the bottom end face of the mounting bracket;

[0008] An mounting block is installed on the first hydraulic rod;

[0009] The bottom surface of the processing panel is provided with a second hydraulic rod, and a support plate is provided on the output shaft of the second hydraulic rod.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, a horizontal plate is mounted on the rear end face of the mounting block, and the horizontal plate is mounted on the processing panel via a support plate.

[0012] The beneficial effects of adopting the above-mentioned further solutions are:

[0013] The mounting block is connected to the processing panel by a horizontal plate and a support plate to form a stable support structure.

[0014] Furthermore, a limiting rod is fixed to the bottom end face of the mounting block, and the limiting rod is sleeved inside the counterweight block.

[0015] The beneficial effects of adopting the above-mentioned further solutions are:

[0016] The fitting between the limit rod and the counterweight provides effective limiting. When the output shaft of the first hydraulic rod moves up and down, the counterweight moves accordingly. The limit rod restricts the counterweight's movement trajectory, ensuring it can only move along the axial direction of the limit rod, preventing wobbling or deviation during movement. This helps ensure smooth movement of the mounting bracket and the upper mold, resulting in more precise mold closing with the lower mold.

[0017] Furthermore, a bracket is fixed to the bottom surface of the processing panel, and an anti-slip pad is fitted to the bottom surface of the bracket.

[0018] The beneficial effects of adopting the above-mentioned further solutions are:

[0019] The support frame provides structural support for the entire mold, ensuring it can be placed stably on the worktable. The installation of anti-slip feet further enhances the stability of the processing panel.

[0020] Furthermore, a drive motor is mounted on the top surface of the processing panel, and a rotating shaft is mounted on the output shaft of the drive motor, with the rotating shaft mounted on the bottom surface of the lower mold.

[0021] The beneficial effects of adopting the above-mentioned further solutions are:

[0022] The drive motor drives the lower mold to rotate via a shaft. During the extrusion molding process of the vehicle energy-absorbing box, the personnel can place the processed profile of the energy-absorbing box into multiple forming cavities of the lower mold in sequence. By controlling the speed and direction of rotation of the drive motor, the multiple cavities in the lower mold can be made to cooperate with the upper mold for forming operations one by one, avoiding the impact of processing only one energy-absorbing box at a time on production capacity.

[0023] Furthermore, a support block and an ejector block are fixed on the support plate, and both the support block and the ejector block are sleeved inside the lower mold.

[0024] The beneficial effects of adopting the above-mentioned further solutions are:

[0025] The support block plays a supporting role during the mold forming process. When the lower and upper molds are closed and extrusion molding is performed, the support plate can be driven by a hydraulic mechanism to move upward to support the lower mold. During this support, the support block can enter the lower mold and close the bottom end face, thus supporting the lower mold and preventing deformation due to excessive force, ensuring the mold's service life and forming accuracy. The ejector block plays its role after forming is completed. After forming in one cavity of the lower mold, the support plate moves downward and the lower mold continues to rotate to the next cavity for further extrusion molding. After moving, the support plate continues to move upward to provide support. During this support, the ejector block pushes the formed vehicle energy-absorbing box out of the lower mold, making it convenient for operators to remove the formed product and improving production efficiency.

[0026] Furthermore, a fixing rod is installed on the bottom surface of the processing panel, and a guide rod is slidably sleeved inside the fixing rod. The top surface of the guide rod is fixedly installed on the bottom surface of the support plate.

[0027] The beneficial effects of adopting the above-mentioned further solutions are:

[0028] The cooperation between the fixed rod and the guide rod provides guidance for the movement of the support plate. When the second hydraulic rod pushes the support plate up and down, the guide rod slides within the fixed rod, ensuring that the support plate can move smoothly in the predetermined direction. This allows the support block and ejector block to accurately enter and exit the lower mold, avoiding problems with the fit between the support block / ejector block and the lower mold due to offset of the support plate.

[0029] This utility model provides a profile extrusion molding die for processing vehicle energy-absorbing boxes. It has the following beneficial effects:

[0030] The locking rod and the counterweight block are engaged to restrict the movement trajectory of the counterweight block, preventing it from shaking or deviating, and ensuring the smooth movement of the mounting frame and the upper mold. This makes the mold closing of the upper and lower molds more precise. The cooperation between the fixing rod and the guide rod provides guidance for the movement of the support plate, ensuring the smooth movement of the support plate and allowing the support block and the ejector block to accurately enter and exit the lower mold, avoiding problems with the fit.

[0031] The drive motor rotates the lower mold via a rotating shaft, allowing the profiles to be processed into energy-absorbing boxes to be placed sequentially into multiple forming cavities within the lower mold. This enables the multiple cavities in the lower mold to work in conjunction with the upper mold for one-to-one forming operations, avoiding the impact of processing only one energy-absorbing box at a time and thus reducing production capacity. After forming is complete, the ejector block ejects the formed vehicle energy-absorbing box from the lower mold, making it easier for operators to remove the formed product and improving production efficiency.

[0032] The support block plays a supporting role in the mold forming process. When the lower mold and the upper mold are closed and extrusion molding is carried out, the support plate is driven to move upward by the hydraulic mechanism. The support block enters the lower mold and closes the bottom end face, so that the lower mold is supported and avoids deformation due to excessive force, thus ensuring the service life and forming accuracy of the mold. Attached Figure Description

[0033] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0034] In the attached diagram:

[0035] Figure 1 This is a front view schematic diagram of the present invention;

[0036] Figure 2 This is a side view of the present invention;

[0037] Figure 3 This is a schematic diagram of the installation of the support plate of this utility model;

[0038] Figure 4 This is a cross-sectional view of the support plate of this utility model.

[0039] The attached diagram lists the components represented by each number as follows:

[0040] 1. Processing panel; 101. Bracket; 102. Support plate; 103. Horizontal plate; 2. Lower mold; 201. Drive motor; 3. First hydraulic rod; 301. Counterweight; 302. Limiting rod; 303. Mounting block; 304. Mounting bracket; 305. Upper mold; 4. Support plate; 401. Second hydraulic rod; 402. Support block; 403. Ejector block; 404. Guide rod; 405. Fixing rod. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows:

[0043] Example 1

[0044] A profile extrusion molding die for processing vehicle energy-absorbing boxes includes a processing panel 1 and a first hydraulic rod 3, with a lower die 2 provided on the processing panel 1;

[0045] A mounting bracket 304 is mounted on the output shaft of the first hydraulic rod 3 via a counterweight 301, and an upper mold 305 is mounted on the bottom end face of the mounting bracket 304.

[0046] A mounting block 303 is installed on the first hydraulic rod 3;

[0047] The bottom surface of the processing panel 1 is provided with a second hydraulic rod 401, and a support plate 4 is provided on the output shaft of the second hydraulic rod 401;

[0048] A horizontal plate 103 is installed on the rear end face of the mounting block 303. The horizontal plate 103 is installed on the processing panel 1 through the support plate 102. The mounting block 303 and the processing panel 1 are connected by the horizontal plate 103 and the support plate 102 to form a stable support structure.

[0049] A limiting rod 302 is fixed to the bottom surface of the mounting block 303. The limiting rod 302 is sleeved inside the counterweight block 301, and the sleeved cooperation between the limiting rod 302 and the counterweight block 301 provides a good limiting effect. When the output shaft of the first hydraulic rod 3 moves up and down, the counterweight block 301 will move accordingly. The limiting rod 302 can restrict the movement trajectory of the counterweight block 301, so that it can only move along the axial direction of the limiting rod 302, avoiding swaying or deviation of the counterweight block 301 during movement. This helps to ensure the smooth movement of the mounting bracket 304 and the upper mold 305, making the upper mold 305 more accurate when closing with the lower mold 2.

[0050] A bracket 101 is fixed to the bottom surface of the processing panel 1, and anti-slip pads are fitted onto the bottom surface of the bracket 101. The bracket 101 provides support for the entire mold, ensuring that the mold can be placed stably on the worktable. The installation of anti-slip pads further enhances the stability of the processing panel 1.

[0051] A drive motor 201 is mounted on the top surface of the processing panel 1. A rotating shaft is mounted on the output shaft of the drive motor 201, and the rotating shaft is mounted on the bottom surface of the lower mold 2. The drive motor 201 can drive the lower mold 2 to rotate via the rotating shaft. During the extrusion molding process of the vehicle energy-absorbing box, the personnel can place the profile of the energy-absorbing box to be processed sequentially into multiple molding cavities of the lower mold 2. By controlling the speed and rotation direction of the drive motor 201, the multiple cavities in the lower mold 2 can be made to cooperate with the upper mold 305 to perform molding operations one by one, avoiding the impact of processing only one energy-absorbing box at a time on production capacity.

[0052] Example 2

[0053] To make the mold more stable during molding, to provide internal support and restraint within the mold, and to facilitate the removal of the molded part after molding, for example, such as... Figures 1 to 4 As shown, this utility model also includes:

[0054] Support block 402 and ejector block 403 are fixed on support plate 4. Both support block 402 and ejector block 403 are fitted inside lower mold 2. Support block 402 plays a supporting role during mold forming. When lower mold 2 and upper mold 305 are closed and extrusion forming is performed, support plate 4 can be driven by hydraulic mechanism to move upward to support lower mold 2. During support, support block 402 can enter lower mold 2 to close the bottom end face, thereby supporting lower mold 2 to prevent excessive force and deformation, ensuring mold service life and forming accuracy. Ejector block 403 plays its role after forming is completed. After forming in one cavity of lower mold 2, support plate 4 moves downward and lower mold 2 continues to rotate to the next cavity for further extrusion forming. After moving, support plate 4 continues to move upward to provide support. During support, ejector block 403 will eject the formed vehicle energy-absorbing box from lower mold 2, making it convenient for operators to remove the formed product and improving production efficiency.

[0055] A fixing rod 405 is installed on the bottom surface of the processing panel 1. A guide rod 404 is slidably sleeved inside the fixing rod 405. The top surface of the guide rod 404 is fixedly installed on the bottom surface of the support plate 4. The cooperation between the fixing rod 405 and the guide rod 404 provides guidance for the movement of the support plate 4. When the second hydraulic rod 401 pushes the support plate 4 to move up and down, the guide rod 404 will slide inside the fixing rod 405, ensuring that the support plate 4 can move smoothly in a predetermined direction. This allows the support block 402 and the ejector block 403 to accurately enter and exit the lower mold 2, avoiding problems with the fit between the support block 402 and the ejector block 403 and the lower mold 2 due to the offset of the support plate 4.

[0056] Working principle:

[0057] After the energy-absorbing box profiles are placed sequentially into the multiple forming cavities of the lower mold 2.

[0058] The first hydraulic rod 3 begins to operate, and its output axis moves downward. Since the limiting rod 302 is sleeved within the counterweight 301, the counterweight 301 moves smoothly downward along the axial direction of the limiting rod 302, causing the mounting frame 304 and the upper mold 305 to move smoothly downward. Here, the horizontal plate 103 and the support plate 102 connect the mounting block 303 to the processing panel 1, forming a stable support structure to ensure the stability of the first hydraulic rod 3 and related components.

[0059] The upper mold 305 moves downwards until it closes with the lower mold 2. Simultaneously, the second hydraulic rod 401 pushes the support plate 4 upwards. Because the fixed rod 405 and the guide rod 404 cooperate to guide the movement of the support plate 4, the support plate 4 moves upwards smoothly. The support block 402 enters the lower mold 2 and closes its bottom surface, providing support for the lower mold 2 and preventing it from deforming due to excessive force during the extrusion process. At this point, the upper mold 305 and the lower mold 2 extrude the profile, completing the forming of an energy-absorbing box within a cavity.

[0060] After the energy-absorbing box in one cavity is formed, the output shaft of the first hydraulic rod 3 moves upward, separating the upper mold 305 from the lower mold 2. The drive motor 201 starts and drives the lower mold 2 to rotate via the rotating shaft, rotating the next cavity containing the profile to the position corresponding to the upper mold 305.

[0061] When the first hydraulic rod 3 moves the upper mold 305 upward and the lower mold 2 rotates, the second hydraulic rod 401 moves the support plate 4 downward. When the lower mold 2 rotates to the next cavity to prepare for extrusion molding again, the support plate 4 moves upward again. At this time, the ejector block 403 ejects the vehicle energy-absorbing box formed in the previous cavity from the lower mold 2, making it convenient for the operator to remove.

[0062] Repeat the steps to form the multiple cavities in the lower mold 2 in sequence until all the profiles are processed into energy-absorbing boxes.

[0063] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0064] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A profile extrusion molding die for processing vehicle energy-absorbing boxes, comprising a processing panel (1) and a first hydraulic rod (3), wherein a lower die (2) is provided on the processing panel (1), characterized in that: A mounting bracket (304) is installed on the output shaft of the first hydraulic rod (3) via a counterweight (301), and an upper mold (305) is installed on the bottom end face of the mounting bracket (304); An mounting block (303) is installed on the first hydraulic rod (3); The bottom surface of the processing panel (1) is provided with a second hydraulic rod (401), and a support plate (4) is provided on the output shaft of the second hydraulic rod (401).

2. The profile extrusion molding die for processing vehicle energy-absorbing boxes according to claim 1, characterized in that: A horizontal plate (103) is installed on the rear end face of the mounting block (303), and the horizontal plate (103) is mounted on the processing panel (1) by a support plate (102).

3. The profile extrusion molding die for processing vehicle energy-absorbing boxes according to claim 2, characterized in that: A limiting rod (302) is fixed to the bottom end face of the mounting block (303), and the limiting rod (302) is sleeved inside the counterweight block (301).

4. The profile extrusion molding die for processing vehicle energy-absorbing boxes according to claim 1, characterized in that: The bottom surface of the processing panel (1) is fixed with a bracket (101), and the bottom surface of the bracket (101) is fitted with an anti-slip pad.

5. The profile extrusion molding die for processing vehicle energy-absorbing boxes according to claim 1, characterized in that: A drive motor (201) is mounted on the top surface of the processing panel (1), and a rotating shaft is mounted on the output shaft of the drive motor (201), and the rotating shaft is mounted on the bottom surface of the lower mold (2).

6. The profile extrusion molding die for processing vehicle energy-absorbing boxes according to claim 1, characterized in that: The support plate (4) is fixed with a support block (402) and an ejector block (403), both of which are fitted into the lower mold (2).

7. The profile extrusion molding die for processing vehicle energy-absorbing boxes according to claim 1, characterized in that: A fixing rod (405) is installed on the bottom end face of the processing panel (1), and a guide rod (404) is slidably sleeved inside the fixing rod (405). The top end face of the guide rod (404) is fixedly installed on the bottom end face of the support plate (4).