A blow molding die for a vehicle frame

Abstract

The application discloses a vehicle frame blow molding die and belongs to the molding die field.The vehicle frame blow molding die comprises a left partition plate, a right partition plate, a left trigger wheel, a right trigger wheel, a wedge-shaped block, an inner insertion section, an outer section, a plurality of inclined struts, a plurality of demolding wheels, a plurality of energy storage demolding components, a plurality of compression springs, a plurality of pressing plates, a plurality of separation components, a plurality of center points and a plurality of center point demolding components.The vehicle frame blow molding die has the advantages that when the separation component drives the left partition plate and the right partition plate to move away from each other to open the mold cavity, and the left trigger wheel collides with the wedge-shaped block and slides along the first inclined surface of the wedge-shaped block, the movement of the inner insertion section and the outer section reaches the limit, the pressing plate moves upward along the inner insertion section and the compression spring is deformed, a plurality of inclined struts and demolding wheels are simultaneously driven to have a tendency of diffusing around, the blow molding vehicle frame is acted on to perform the diffusion and progressive demolding operation, the energy storage demolding component can be triggered to link with the separation component to perform the demolding during the mold opening process of the separation component, the center point demolding is firstly performed, and then the diffusion and progressive demolding is performed from the center point to the periphery, and the demolding efficiency and the demolding precision are improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of forming die, in particular to a frame blow molding die. BACKGROUND

[0002] In the prior art, when the frame is blow molded, the blow molding die is needed. The operator first places the blow molding frame operation material in the blow molding die, and then completes the blow molding operation of the frame by blow molding process. However, after the blow molding operation of the frame is completed, how to quickly demold and separate the frame after the blow molding operation becomes a technical problem to be solved.

[0003] The present application attempts to alleviate or at least mitigate such problems or deficiencies by providing a new or otherwise improved forming die. SUMMARY

[0004] In view of one or more of the above deficiencies or improvement needs of the prior art, the present application provides a frame blow molding die, which has the advantage of being able to quickly demold and separate the frame after blow molding operation.

[0005] To achieve the above-mentioned purpose, the present application provides a frame blow molding die, which comprises a blow molding die body, which comprises a mold frame, a lower mold plate detachably mounted on the mold frame, and a lower mold cavity in the lower mold plate;

[0006] A left partition plate which can pass through the left end of the lower mold plate;

[0007] A right partition plate which can pass through the right end of the lower mold plate, and when the right partition plate and the left partition plate are in contact with each other, the lower mold cavity of the lower mold plate forms a closed space;

[0008] An upper mold plate which is detachably arranged on the lower mold plate, and an upper mold cavity in the upper mold plate;

[0009] A separation member for separating the left partition plate and the right partition plate, which is detachably arranged on the blow molding die body;

[0010] An energy storage demolding member which is detachably arranged on the blow molding die body, and is composed of a displacement segment and a trigger segment connected to the displacement segment, wherein during the separation of the separation member from the left partition plate and the right partition plate, the displacement segment is triggered to displace, and at the same time the trigger segment has a tendency to spread around to act on the blow molding frame to perform gradual demolding operation.

[0011] As a further improvement of the present application, a sealing plate is detachably arranged on the lower mold plate, a limiting rod is rotatably arranged in the sealing plate, and a through hole is arranged in the upper mold plate for the limiting rod to pass through.

[0012] As a further improvement of the present application, the separating member comprises:

[0013] A connecting machine frame is detachably arranged on the blow molding mold body, a driving motor is arranged at one end of the connecting machine frame, an output end of the driving motor is capable of passing into the connecting machine frame, and a right-handed screw rod is detachably arranged on the output end of the driving motor.

[0014] A left-handed screw rod is rotatably arranged in the connecting machine frame, and the left-handed screw rod is connected with the right-handed screw rod.

[0015] A right-handed ball bearing base is slidably arranged in the connecting machine frame, and the right-handed ball bearing base is capable of being passed through by the right-handed screw rod.

[0016] A left-handed ball bearing base is slidably arranged in the connecting machine frame, and the left-handed ball bearing base is capable of being passed through by the left-handed screw rod.

[0017] A right separating frame is detachably arranged on the right-handed ball bearing base, a right side support is arranged on the right separating frame, and the right side support is connected with the right separating plate.

[0018] A left separating frame is detachably arranged on the left-handed ball bearing base, a left side support is arranged on the left separating frame, and the left side support is connected with the left separating plate.

[0019] As a further improvement of the present application, the right separating frame is capable of surrounding the connecting machine frame therein, a right trigger wheel is further detachably arranged on the right separating frame, the left separating frame is capable of surrounding the connecting machine frame therein, and a left trigger wheel is further detachably arranged on the left separating frame.

[0020] As a further improvement of the present application, the trigger section of the energy storage demolding member comprises:

[0021] An energy storage rod is detachably arranged on the blow molding mold body, the energy storage rod is composed of an external section and an internal section passing into the external section, a tension spring is arranged in the internal section and connected with an inner bottom wall of the external section, a baffle is arranged in the internal section, an annular flange is arranged at an opening of the external section, the baffle is capable of being limited by the opening flange of the external section, a gasket is arranged on the internal section of the energy storage rod, a pressing plate is slidably arranged on the internal section of the energy storage rod, and a wedge-shaped block is detachably arranged at both ends of the pressing plate.

[0022] a storage spring slidably arranged on the inner insertion section of the storage rod;

[0023] a base plate detachably arranged on the bottom of the inner insertion section of the storage rod, and a plurality of extension arms arranged on the base plate;

[0024] a diagonal strut rotatably connected between one end of the pressing plate and the other end of the sliding block, and the sliding block is capable of sliding along the extension arms.

[0025] As a further improvement of the present application, the displacement section of the energy storage demolding member comprises:

[0026] an ear plate detachably mounted on the sliding block, and a pressing rod slidably arranged on the ear plate;

[0027] a demolding wheel detachably mounted on one end of the pressing rod;

[0028] a compression spring slidably arranged on the pressing rod, and the compression spring is located between the ear plate and the demolding wheel;

[0029] a limiting piece detachably mounted on the other end of the pressing rod.

[0030] As a further improvement of the present application, in the initial state, the energy storage spring is located between the pressing plate and the gasket, and the energy storage spring is in an uncompressed state.

[0031] As a further improvement of the present application, the wedge has a first inclined surface and a second inclined surface, the angle between the first inclined surface and the horizontal plane is A, and the angle between the second inclined surface and the horizontal plane is B, and the value of A is greater than the value of B.

[0032] As a further improvement of the present application, in the initial state, a plurality of the diagonal struts are distributed in a cross distribution state, and when the pressing plate is pressed, the energy storage spring has a tendency to move upward.

[0033] As a further improvement of the present application, a push rod is detachably mounted on one end of the pressing plate, a corrugated barrel is detachably mounted on the extension arm, and the corrugated barrel is detachably connected with the push rod.

[0034] Overall, compared with the prior art, the above technical solutions conceived by the present application have the following beneficial effects:

[0035] 1. The vehicle frame blow molding mold of the present invention, through the arrangement of separation components, after the vehicle frame blow molding is completed, can drive the right-hand lead screw and the left-hand lead screw to rotate by turning on the drive motor, and can drive the right-hand ball bearing base and the left-hand ball bearing base to move closer to each other or further away from each other. When the right-hand ball bearing base and the left-hand ball bearing base move further away from each other, it can drive the left partition plate and the right partition plate to move further away from each other, so as to quickly open the lower mold cavity of the lower mold plate and perform rapid mold opening;

[0036] 2. The blow molding die for the vehicle frame of the present invention, through the arrangement of energy storage demolding components, when the separation component drives the left and right partition plates to move away from each other to open the lower mold cavity, and the left trigger wheel touches the wedge block and slides along the first inclined surface of the wedge block, it can drive the pressure plate to move the inner insertion section upward and pull the tension spring to extend. When the tension spring moves to the limit position and the baffle on the inner insertion section touches the annular flange, it forms a limit. At this time, multiple sets of demolding wheels can perform demolding operations on the blow-molded vehicle frame at the center position. As the left trigger wheel continues to move on the wedge block, when the left... When the trigger wheel slides along the second inclined surface of the wedge block, the movement of the inner and outer sections reaches its limit. As a result, the pressure plate moves upward along the inner section and compresses the energy storage spring. This causes multiple sets of inclined supports and demolding wheels to spread outwards in a synchronous manner, thus acting on the blow molding frame for a progressive demolding operation. The energy storage demolding components can trigger and link with the separation components during the mold opening process. Demolding starts from the center point and then spreads outwards from the center point in a progressive manner, improving demolding efficiency and accuracy. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of the vehicle frame blow molding die of the present invention;

[0038] Figure 2 This is a structural schematic diagram of the vehicle frame blow molding die from another angle, according to the present invention;

[0039] Figure 3 This is a schematic diagram of the structure of the blow molding die body of the present invention;

[0040] Figure 4 This is a schematic diagram of the structure when the separation component and the energy storage demolding component of the present invention are combined.

[0041] Figure 5 This is a schematic diagram of the structure of the present invention when the separation component and the energy storage demolding component are combined from another perspective;

[0042] Figure 6 For the present invention Figure 5 Enlarged view of point A;

[0043] Figure 7 For the present invention Figure 5enlarged view of B of Fig. 1;

[0044] Figure 8 for the present invention Figure 5 enlarged view of C of Fig. 1.

[0045] In all the drawings, the same reference numerals refer to the same technical features, specifically: 1, blow molding mold body; 11, mold frame; 12, lower mold plate; 13, left partition plate; 14, right partition plate; 15, upper mold plate; 16, closing plate; 17, limiting rod; 2, separation component; 21, connecting machine frame; 22, driving motor; 23, right-hand screw rod; 24, left-hand screw rod; 25, right-hand ball bearing base; 26, left-hand ball bearing base; 27, right separation frame; 271, right side support; 28, left separation frame; 281, left side support; 29, right trigger wheel; 291, left trigger wheel; 3, energy storage demolding component; 31, energy storage rod; 32, pressing plate; 33, wedge block; 34, energy storage spring; 35, bottom plate; 36, inclined support; 37, sliding block; 38, ear plate; 39, pressing rod; 391, compression spring; 392, demolding wheel; 393, limiting sheet; 394, push rod; 395, corrugated cylinder. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0047] The terms used herein are merely used to describe specific embodiments, and are not intended to limit the present application. The terms "comprise", "contain", and the like used herein indicate the existence of the stated features, steps, operations and / or components, but do not exclude the presence or addition of one or more other features, steps, operations or components.

[0048] All terms used herein (including technical and scientific terms) have meanings commonly understood by a person of ordinary skill in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted to have meanings consistent with the context of the present specification, and should not be interpreted in an idealized or overly formal manner.

[0049] In the embodiments, the Figures 1-8The application discloses a blow molding die for a vehicle frame, which comprises a blow molding die body 1, a lower die plate 12 detachably arranged on a die frame 11 of the blow molding die body 1 and provided with a lower die cavity, a left partition plate 13 capable of passing through a left end of the lower die plate 12, a right partition plate 14 capable of passing through a right end of the lower die plate 12 and capable of forming a closed space in the lower die cavity of the lower die plate 12 when the right partition plate 14 and the left partition plate 13 abut against each other, an upper die plate 15 detachably arranged on the lower die plate 12 and provided with an upper die cavity, a separation member 2 for separating the left partition plate 13 and the right partition plate 14 and detachably arranged on the blow molding die body 1, and an energy storage demolding member 3 detachably arranged on the blow molding die body 1 and comprising a displacement section and a trigger section connected to the displacement section.

[0050] The application is based on the following overall idea: after the blow molding of the vehicle frame is completed, the separation member 2 is driven to separate the left partition plate 13 and the right partition plate 14 by starting a driving motor 22, the right screw rod 23 and the left screw rod 24 are driven to rotate, the right ball bearing base 25 and the left ball bearing base 26 are driven to approach or move away from each other, the left partition plate 13 and the right partition plate 14 are driven to move away from each other after the right ball bearing base 25 and the left ball bearing base 26 move away from each other, the lower die cavity of the lower die plate 12 is quickly opened, the mold is quickly opened, the energy storage demolding member 3 is arranged, when the separation member 2 drives the left partition plate 13 and the right partition plate 14 to move away from each other to open the lower die cavity, and the left trigger wheel 291 collides with the wedge block 33 and slides along the first inclined surface of the wedge block 33, the pressing plate 32 drives the inner insertion section to move upwards and stretches the tension spring, when the tension spring moves to the limit position and the blocking piece on the inner insertion section collides with the annular flange, the limit position is formed, at this moment, the plurality of demolding wheels 392 can demold the blow molding vehicle frame at the center position, when the left trigger wheel 291 continues to move on the wedge block 33 and slides along the second inclined surface of the wedge block 33, because the movement of the inner insertion section and the outer insertion section reaches the limit, the pressing plate 32 moves upwards along the inner insertion section and compresses the energy storage spring 34 to deform, the plurality of inclined supports 36 and the demolding wheels 392 can simultaneously have a tendency to diffuse towards the periphery, so as to act on the blow molding vehicle frame to perform the diffusion and progressive demolding operation, the energy storage demolding member 3 is arranged to trigger the demolding operation in the process of opening the mold by the separation member 2, the demolding operation is first performed at the center point and then gradually diffuses towards the periphery, and the demolding efficiency and the demolding precision are improved.

[0051] In some embodiments, in order to facilitate the rapid closing of the lower die plate 12 and the upper die plate 15, a sealing plate 16 is detachably mounted on the lower die plate 12, a limiting rod 17 is rotatably arranged in the sealing plate 16, and the upper die plate 15 has a counterbore for the limiting rod 17 to pass through;

[0052] When the lower die plate 12 and the upper die plate 15 are closed, the upper die plate 15 is covered on the lower die plate 12, the limiting rod 17 is rotated into the counterbore by abutting the sealing plate 16 and the upper die plate 15, and the closing of the lower die plate 12 and the upper die plate 15 is completed.

[0053] Next, the overall structure and configuration of the separation member 2 will be further explained. The separation member 2 comprises a connecting frame 21 which is detachably arranged on the blow molding die body 1, a driving motor 22 at one end of the connecting frame 21, an output end of the driving motor 22 capable of passing through the connecting frame 21, a right-hand screw rod 23 detachably arranged on the output end of the driving motor 22, a left-hand screw rod 24 rotatably arranged in the connecting frame 21 and connected between the right-hand screw rod 23 and the left-hand screw rod 24, a right-hand ball seat 25 slidably arranged in the connecting frame 21 and capable of being passed through by the right-hand screw rod 23, a left-hand ball seat 26 slidably arranged in the connecting frame 21 and capable of being passed through by the left-hand screw rod 24, a right separation frame 27 detachably arranged on the right-hand ball seat 25 and having a right side support 271 connected with the right partition plate 14, and a left separation frame 28 detachably arranged on the left-hand ball seat 26 and having a left side support 281 connected with the left partition plate 13.

[0054] Next, the principle and effect of the overall use of the separation member 2 will be further explained. After the blow molding of the vehicle frame is completed, the driving motor 22 is started to drive the right-hand screw rod 23 and the left-hand screw rod 24 to rotate, thereby driving the right-hand ball seat 25 and the left-hand ball seat 26 to move closer to or farther away from each other, and when the right-hand ball seat 25 and the left-hand ball seat 26 move farther away from each other, the left partition plate 13 and the right partition plate 14 are driven to move farther away from each other, thereby rapidly opening the lower die cavity of the lower die plate 12 and rapidly opening the mold.

[0055] In some embodiments, more specifically, in order to facilitate the synchronization of the separation member 2 acting on the energy storage demolding member 3 during driving, so that the energy storage demolding member 3 is driven, the right separation frame 27 can surround the connecting machine frame 21, and a right trigger wheel 29 is detachably arranged on the right separation frame 27. The left separation frame 28 can also surround the connecting machine frame 21, and a left trigger wheel 291 is detachably arranged on the left separation frame 28.

[0056] Next, the energy storage demolding member 3 is further explained in detail. The trigger section of the energy storage demolding member 3 includes: an energy storage rod 31 detachably arranged on the blow molding mold body 1, the energy storage rod 31 is composed of an external section and an inserted section penetrating into the external section, a tension spring is arranged in the inserted section, and the tension spring is connected between the inner bottom wall of the external section and the inserted section, a baffle is arranged in the inserted section, an annular flange is arranged at the opening of the external section, the baffle is limited by the opening flange of the external section, a gasket is arranged on the inserted section of the energy storage rod 31, a pressing plate 32 is slidably arranged on the inserted section of the energy storage rod 31, and a wedge-shaped block 33 is detachably arranged at both ends of the pressing plate 32; an energy storage spring 34 is slidably arranged on the inserted section of the energy storage rod 31; a bottom plate 35 is detachably arranged at the bottom of the inserted section of the energy storage rod 31, and a plurality of extension arms are arranged on the bottom plate 35; an inclined support 36 is rotatably connected between one end of the pressing plate 32 and the other end of the pressing plate 32, and a sliding block 37 is rotatably arranged on the other end of the inclined support 36, and the sliding block 37 can slide along the extension arm. The displacement section of the energy storage demolding member 3 includes: an ear plate 38 detachably arranged on the sliding block 37, a pressing rod 39 slidably arranged on the ear plate 38; a demolding wheel 392 detachably arranged at one tail end of the pressing rod 39; a compression spring 391 slidably arranged on the pressing rod 39, and the compression spring 391 is located between the ear plate 38 and the demolding wheel 392; and a limiting piece 393 detachably arranged at the other tail end of the pressing rod 39.

[0057] Further explanation of the use principle of the energy storage demolding member 3 is as follows. When the separating member 2 drives the left partition plate 13 and the right partition plate 14 to move away from each other to open the mold cavity, and the left trigger wheel 291 collides with the wedge block 33 and slides along the first inclined surface of the wedge block 33, the pressure plate 32 can drive the inner insertion section to move upward and pull the tension spring to stretch. When the tension spring moves to the limit position and the blocking piece on the inner insertion section collides with the annular flange, the limit position is formed. At this time, the plurality of demolding wheels 392 can perform demolding operation on the blow molding frame at the center position. After the left trigger wheel 291 continues to move on the wedge block 33, when the left trigger wheel 291 slides along the second inclined surface of the wedge block 33, because the movement of the inner insertion section and the outer insertion section reaches the limit, the pressure plate 32 moves upward along the inner insertion section and compresses the energy storage spring 34 to deform. The plurality of inclined struts 36 and the demolding wheels 392 can be synchronously driven to have a tendency to spread to the periphery to act on the blow molding frame to perform the spread and progressive demolding operation. Through the energy storage demolding member 3 arranged, the demolding can be triggered and linked with the separating member 2 during the opening of the separating member 2. The demolding is first performed from the center point, and then the spread and progressive demolding is performed from the center point to the periphery. The demolding efficiency and the demolding precision are improved.

[0058] In some embodiments, more specifically, in order to facilitate the compression of the energy storage spring 34, in the initial state, the energy storage spring 34 is located between the pressure plate 32 and the gasket, and the energy storage spring 34 is in an uncompressed state.

[0059] In some embodiments, more specifically, the wedge block 33 has a first inclined surface and a second inclined surface. The angle between the first inclined surface and the horizontal plane is A, and the angle between the second inclined surface and the horizontal plane is B. The value of A is greater than the value of B.

[0060] In some more specific embodiments, by limiting the value of A to be greater than the value of B, the inner insertion section of the energy storage rod 31 can generate a larger deformation amount in unit time when driving the demolding wheel 392 to move upward, so that the blow molding frame can be quickly subjected to center impact demolding.

[0061] In some embodiments, more specifically, in the initial state, the plurality of inclined struts 36 are in a cross-distributed state. When the pressure plate 32 is extruded, the energy storage spring 34 has a tendency to move upward.

[0062] In some embodiments, more specifically, a push rod 394 is detachably installed at one tail end of the pressure plate 32. A corrugated barrel 395 is detachably installed on the extension arm, and the corrugated barrel 395 and the push rod 394 are detachably connected.

[0063] In some embodiments, the push rod 394 can be pushed up by the pressing plate 32 after moving up, and the corrugated cylinder 395 can be pushed to generate deformation and release gas to cool the frame after blow molding.

[0064] In summary, through the separation member 2, after the frame is blow molded, the right-hand screw rod 23 and the left-hand screw rod 24 can be driven to rotate by starting the driving motor 22, the right-hand ball seat 25 and the left-hand ball seat 26 can be driven to move close to or away from each other, and the left partition plate 13 and the right partition plate 14 can be driven to move away from each other to quickly open the lower mold cavity of the lower mold plate 12 and quickly open the mold. When the left trigger wheel 291 collides with the wedge block 33 and slides along the first inclined surface of the wedge block 33, the pressing plate 32 can drive the inner insertion segment to move up and pull the tension spring to stretch, and when the tension spring moves to the limit position and the baffle on the inner insertion segment collides with the annular flange, the limit position is formed. At this time, a plurality of demolding wheels 392 can perform demolding operation on the blow-molded frame at the center position. When the left trigger wheel 291 continues to move on the wedge block 33 and slides along the second inclined surface of the wedge block 33, because the movement of the inner insertion segment and the outer insertion segment reaches the limit, the pressing plate 32 moves up along the inner insertion segment and compresses the energy storage spring 34 to deform, and a plurality of inclined struts 36 and demolding wheels 392 can be simultaneously driven to have a tendency to spread around the center, so as to act on the blow-molded frame to perform the diffusion and progressive demolding operation. Through the energy storage demolding member 3, the mold opening process of the separation member 2 can be triggered and linked to demolding, first demolding from the center point, and then gradually diffusing and demolding from the center point to the periphery, so that the demolding efficiency and precision are improved.

[0065] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A blow-molded frame mold characterized by, It includes: Blow molding mold body, including a mold frame, a lower die plate is detachably mounted on the lower die plate, and a lower die cavity is formed in the lower die plate; The left partition plate can pass through the left end of the lower die plate; The right partition plate can pass through the right end of the lower die plate, and the lower die cavity of the lower die plate can form a closed space when the right partition plate and the left partition plate are in contact with each other; The upper die plate is detachably arranged on the lower die plate, and an upper die cavity is formed in the upper die plate; A separation member for separating the left partition plate and the right partition plate is detachably arranged on the blow molding mold body; The energy storage demolding member is detachably arranged on the blow molding mold body and is composed of a displacement segment and a trigger segment connected to the displacement segment, wherein the displacement segment is triggered to displace during the separation of the separation member from the left partition plate and the right partition plate, and the trigger segment is driven to have a tendency to spread around to act on the blow molding frame to perform a gradual demolding operation.

2. The vehicle frame blow molding mold according to claim 1, characterized by A sealing plate is detachably mounted on the lower die plate, a limiting rod is rotatably arranged in the sealing plate, and a sink hole is formed in the upper die plate for the limiting rod to pass through.

3. The vehicle frame blow molding mold according to claim 2, characterized in that, The separation member includes: A connecting machine frame is detachably arranged on the blow molding mold body, and a drive motor is arranged at one end of the connecting machine frame. The output end of the drive motor can pass into the connecting machine frame, and a right screw rod is detachably arranged on the output end of the drive motor; A left screw rod is rotatably arranged in the connecting machine frame, and the left screw rod is connected to the right screw rod; A right ball bearing base is slidably arranged in the connecting machine frame, and the right ball bearing base can be passed through by the right screw rod; A left ball bearing base is slidably arranged in the connecting machine frame, and the left ball bearing base can be passed through by the left screw rod; A right separation frame is detachably arranged on the right ball bearing base, and a right support is arranged on the right separation frame and connected to the right partition plate; A left separation frame is detachably arranged on the left ball bearing base, and a left support is arranged on the left separation frame and connected to the left partition plate.

4. The vehicle frame blow molding mold according to claim 3, characterized in that, The right separation frame can surround the connecting machine frame, and a right trigger wheel is detachably arranged on the right separation frame. The left separation frame can surround the connecting machine frame, and a left trigger wheel is detachably arranged on the left separation frame.

5. The vehicle frame blow molding mold of claim 4, wherein, The trigger segment of the energy storage demolding member includes: An energy storage rod is detachably arranged on the blow molding mold body, and the energy storage rod is composed of an external segment and an internal segment inserted into the external segment. A tension spring is arranged in the internal segment and connected between the internal bottom wall of the external segment and the internal segment. A stop plate is arranged in the internal segment, and an annular flange is arranged at the opening of the external segment. The stop plate can be limited with the opening flange of the external segment. A gasket is arranged on the internal segment of the energy storage rod, a pressing plate is slidably arranged on the internal segment of the energy storage rod, and a wedge-shaped block is detachably mounted at both ends of the pressing plate. a storage spring slidably arranged on the inner insertion section of the storage rod; a base plate detachably arranged on the bottom of the inner insertion section of the storage rod, and a plurality of extension arms arranged on the base plate; a diagonal support rotatably connected between the pressing plate and the other end of the diagonal support rotatably arranged with a sliding block, and the sliding block is capable of sliding along the extension arm.

6. The vehicle frame blow molding mold according to claim 5, wherein The displacement section of the energy storage demolding member comprises: an ear plate detachably mounted on the sliding block, and a pressing rod slidably arranged on the ear plate; a demolding wheel detachably mounted on the tail end of the pressing rod; a compression spring slidably arranged on the pressing rod, and the compression spring is located between the ear plate and the demolding wheel; a limiting piece detachably mounted on the other tail end of the pressing rod.

7. The vehicle frame blow molding mold according to claim 6, characterized in that, In the initial state, the storage spring is located between the pressing plate and the gasket, and the storage spring is in an uncompressed state. The wedge has a first inclined surface and a second inclined surface, the angle between the first inclined surface and the horizontal plane is A, the angle between the second inclined surface and the horizontal plane is B, and the value of A is greater than the value of B.

8. The vehicle frame blow molding mold according to claim 7, characterized in that, In the initial state, a plurality of the diagonal supports are in a cross-distributed state, and when the pressing plate is pressed, the storage spring has a tendency to move upward.

9. The vehicle frame blow molding mold of claim 8, wherein, A push rod is detachably mounted on the tail end of the pressing plate, a corrugated cylinder is detachably mounted on the extension arm, and the corrugated cylinder is detachably connected with the push rod. ​ 10. The vehicle frame blow molding mold of claim 9, wherein, ​

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