A vehicle frame mold

Abstract

The present application discloses a vehicle frame mold, which comprises a front mold and a rear mold, wherein a cavity is defined between the front mold and the rear mold, and the cavity is suitable for molding the vehicle frame, the outer side of the vehicle frame is folded inward to form a folded edge portion, and a folded edge insert is movably provided on the rear mold, and the folded edge insert is suitable for cooperating with the rear mold and molding the folded edge portion, and a repositioning portion is movably provided inwardly on the folded edge insert, and the outer side of the repositioning portion is suitable for contacting the inner side of the folded edge portion, and a tilted ejection assembly is further provided on the rear mold, and the tilted ejection assembly is suitable for ejecting the vehicle frame, and a tilted ejection hole is provided on the inner side of the vehicle frame, and the tilted ejection assembly is suitable for molding the tilted ejection hole; one purpose of the present application is to provide a vehicle frame mold with a simple structure, convenience and durability.

Description

Technical Field

[0001] The present application relates to the field of molds, and in particular to a vehicle frame mold. Background Art

[0002] Currently, automotive frames are installed in vehicles to increase their strength. They can be made from a variety of materials, including steel, aluminum alloy, and plastic. Frames in different locations require different strength and rigidity, so different materials can be used. Frames made from engineering plastics are commonly used in the automotive industry due to their excellent toughness, ease of processing, and moderate strength.

[0003] However, the existing vehicle frame is made by injection molding. Due to the complex structure of the vehicle frame, it is impossible to eject the mold by a simple straight ejection method. The conventional demoulding method generally uses a hydraulic cylinder or a slider to move and demould. The demoulding structure is large, resulting in a large mold structure, inconvenient to use, and slow demoulding speed. This is a problem that technicians in this field need to solve. Summary of the Invention

[0004] One purpose of the present application is to provide a simple, convenient and durable automobile frame mold.

[0005] In order to achieve the above objectives, the technical solutions adopted in this application are:

[0006] A vehicle frame mold comprises a front mold and a rear mold, wherein a cavity is defined between the front mold and the rear mold, the cavity being suitable for molding the vehicle frame, the outer side of the vehicle frame being folded inwardly to form a hem portion, the rear mold being movably provided with a hem insert, the hem insert being suitable for cooperating with the rear mold and molding the hem portion, the hem insert being movably provided inwardly with a repositioning portion, the outer side of the repositioning portion being suitable for abutting against the inner side of the hem portion, the rear mold being further provided with an inclined ejector assembly, the inclined ejector assembly being suitable for ejecting the vehicle frame, and an inclined ejector hole being provided on the inner side of the vehicle frame, the inclined ejector assembly being suitable for molding the inclined ejector hole;

[0007] When the mold is opened, it is suitable to perform a pre-ejection process, wherein the folding insert is suitable for unlocking the folding part, thereby separating the folding insert from the folding part. At this time, the repositioning part is kept against the inner side of the folding part, and at the same time, the inclined ejector assembly is moved along the mold opening direction, and the inclined ejector assembly and the vehicle frame have a certain distance along the mold opening direction; then the ejection process is performed, so that the repositioning part moves inward and separates from the folding part, and the inclined ejector assembly moves toward the vehicle frame, thereby realizing the separation of the vehicle frame from the mold.

[0008] It is worth mentioning that the mold used in the present invention has a pre-ejection process and an ejection process, wherein the pre-ejection process includes controlling the inclined ejector assembly to maintain a certain distance from the injection-molded vehicle frame and separating the hemming insert from the hemming portion. At this time, although the inclined ejector assembly and the hemming insert are both separated from the vehicle frame, the repositioning portion always contacts the inner side of the hemming portion, so the position of the vehicle frame relative to the mold can still be maintained; then the ejection process is carried out to separate the repositioning portion from the hemming portion, and the inclined ejector assembly is ejected from the vehicle frame to complete the demoulding process. Among them, the hemming insert unlocking the hemming portion means that the hemming insert is separated from the hemming portion. In this state, if there is no limiting effect of other components, the hemming portion will complete the demoulding.

[0009] Traditional vehicle frames with hems are typically demolded using the following process: first, the hem insert unlocks the hem, then the frame is ejected using a slender ejector assembly. To maintain the frame's appearance and durability, a relatively slender ejector assembly is typically used. However, in practice, due to the fact that the ejector assembly comes into contact with the plastic during the molding process, directly ejecting the frame makes it difficult to separate the frame from the ejector assembly. Forced separation can also damage the frame's surface. Furthermore, the presence of an ejector hole on the inside of the frame further complicates the separation, making demolding difficult.

[0010] Since the outer side of the vehicle frame is folded inward to form a folded edge, it is very complicated to separate the vehicle frame with the folded edge. The conventional mold structure for forming the folded edge is relatively complex and adopts multi-slide linkage control, which is inconvenient to operate and has a high damage rate. More importantly, due to the complex structure, the ejection process needs to be controlled in speed to prevent the ejection mechanism from failing.

[0011] The vehicle frame mold using this solution uses a folding insert and a repositioning part, and the separation of the folding insert and the folding part does not cause the folding part to be directly demolded. Therefore, the movement speed of the folding insert can be increased to a certain extent, thereby increasing the demolding efficiency; in addition, since the repositioning part moves inward, the folding part is completely unlocked, and the inclined ejector assembly consistent with the mold opening direction can directly drive the vehicle frame to be demolded; moreover, since the inclined ejector assembly has completed the separation from the vehicle frame in the pre-positioning process, during the ejection process, the inclined ejector assembly can have a certain acceleration when contacting the vehicle frame, thereby making the ejection efficiency higher.

[0012] Compared with the traditional demolding method without a pre-ejection process, due to the unlocking of the folding edge panel, the vehicle frame will be completely fixed on the inclined ejector assembly through the inclined ejector hole. The inclined ejector assembly generally adopts an ejector pin structure. Therefore, the heavier vehicle frame will cause the inclined ejector assembly to break and fail. In addition, even if the inclined ejector assembly is driven, the ejection efficiency is low because there is almost no gap between the two, making it difficult to separate the vehicle frame and the inclined ejector assembly, and it is more likely to form deeper ejector marks, affecting the appearance and quality of the product.

[0013] As a preferred embodiment, the vehicle frame includes a first molding surface and a second molding surface, the second molding surface is arranged on the outside of the first molding surface, and the first molding surface and the second molding surface form a certain angle, the outer edge of the second molding surface is folded inward to form the folding portion, and a rib portion is provided on the inner side of the second molding surface, and the setting direction of the rib portion is consistent with the displacement direction of the folding insert during the pre-ejection process, and a rib position groove is provided on the folding insert, and the rib position groove is suitable for forming the rib portion; during the pre-ejection process, the folding insert is separated from the folding portion, and the rib position groove is separated from the rib portion; the outer side of the folding insert is provided with a clearance groove matching the repositioning portion, and when the molding process is performed, the repositioning portion is suitable for being placed in the clearance groove, and the outer side of the repositioning portion and the outer side of the folding insert are suitable for simultaneously contacting the inner side of the folding portion.

[0014] Preferably, a plurality of positioning holes are provided on the first molding surface, and the demoulding directions of the positioning holes respectively form a certain angle with the demoulding direction of the first molding surface; a positioning hole insert is movably provided on the front mold, and the positioning hole insert is suitable for cooperating with the rear mold and forming the positioning hole, and the positioning hole insert is suitable for displacement relative to the demoulding direction of the positioning hole, so that the positioning hole and the positioning hole insert are separated;

[0015] When the mold is opened for the pre-ejection process, the positioning hole insert is suitable for moving relative to the demolding direction of the positioning hole, and controls the displacement of the vehicle frame along the mold opening direction, while ensuring that the inclined ejector assembly and the vehicle frame have a certain distance along the mold opening direction.

[0016] As a preference, the positioning hole insert includes an insert pin and a insert pin fixing seat, the insert pin is suitable for being detachably fixed on the insert pin fixing seat from the inside to the outside, and is suitable for forming the positioning hole, the insert pin fixing seat is suitable for moving relative to the demolding direction of the positioning hole, and is slidably connected to the front mold.

[0017] As a preference, the displacement direction of the hemming insert during the pre-ejection process is arranged parallel to the horizontal plane and forms an acute angle with the negative direction of the X-axis, and the repositioning portion is movably connected to the hemming insert along the Y-axis.

[0018] As a preference, a hook-shaped component is provided on the rear mold, the vertical axis of the hook-shaped component is arranged along the Y-axis, and the repositioning part is provided at the bend of the hook-shaped component, and the hook-shaped component is suitable for moving along the Y-axis and driving the repositioning part to move along the Y-axis at the same time.

[0019] As a preferred embodiment, a first guide hole is provided at the tail end of the vertical axis of the hook-shaped component along the X-axis, the inner wall of the first guide hole is defined by a first guide surface, a guide rod is provided on the rear mold along the X-axis, the guide rod is slidably provided in the first guide hole, and a second guide surface is provided on the guide rod, the second guide surface is suitable for contacting the first guide surface and driving the hook-shaped component to move along the Y-axis.

[0020] As a preferred embodiment, the guide rod is detachably mounted on the rear mold, and the guide rod is sequentially provided with a delay section and a guide section along the positive direction of the X-axis, the second guide surface is provided on the guide section, the guide section forms an acute angle with the positive direction of the X-axis, and the delay section is arranged parallel to the X-axis. When the mold is opened for the pre-ejection process, the delay section is suitable for passing through the first guide hole and keeping the hook-shaped component stationary on the Y-axis; when the ejection process is performed, the guide section is suitable for passing through the first guide hole and making the second guide surface contact the first guide surface, thereby driving the hook-shaped component to move inward on the Y-axis, and the repositioning portion moves inward and separates from the folding portion.

[0021] As a preferred embodiment, an ejector plate is movably provided on the rear mold along the X-axis, the inclined ejector assembly is provided along the X-axis, and one end of the inclined ejector assembly abuts against the ejector plate, and the other end of the inclined ejector assembly is suitable for abutting against the rear side of the vehicle frame; a slider is slidably provided on the ejector plate along the Y-axis, and a folding fixing rod is slidably provided on the slider, one end of the folding fixing rod is slidably provided on the slider, and the other end of the folding fixing rod is detachably connected to the folding inlay, and the folding fixing rod is suitable for driving the folding inlay to unlock the folding portion, thereby separating the folding inlay from the folding portion.

[0022] As a preference, a third guide hole is provided on the ejection plate, a second guide hole is provided on the slider, the second guide hole is connected to the third guide hole, a slider guide rod is provided through the second guide hole and the third guide hole, the slider guide rod is arranged outward along the X-axis, and when the ejection plate is driven to move along the X-axis, the slider is suitable for generating displacement along the slider guide rod.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] (1) The vehicle frame mold of this solution uses a folding insert and a repositioning part, and the separation of the folding insert and the folding part does not cause the folding insert to be directly demolded. Therefore, the movement speed of the folding insert can be increased to a certain extent, thereby increasing the demolding efficiency. In addition, since the repositioning part moves inward, the folding part is completely unlocked, and the inclined ejector assembly consistent with the mold opening direction can directly drive the vehicle frame to be demolded. Moreover, since the inclined ejector assembly has completed the separation from the vehicle frame in the pre-positioning process, the inclined ejector assembly can have a certain acceleration when contacting the vehicle frame during the ejection process, thereby making the ejection efficiency higher.

[0025] (2) Compared with the traditional demoulding method without pre-ejection process, due to the unlocking of the folding insert, the vehicle frame will be completely fixed on the inclined ejector assembly through the inclined ejector hole, and the inclined ejector assembly generally adopts an ejector pin structure. Therefore, the heavy vehicle frame will cause the inclined ejector assembly to break and fail. In addition, even if the inclined ejector assembly is driven, since there is almost no gap between the two, the ejection efficiency is low, it is difficult to separate the vehicle frame and the inclined ejector assembly, and it is more likely to form a deeper ejector pin mark, affecting the appearance and quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of an embodiment of a vehicle frame mold of the present application, showing a front mold, a rear mold, and a vehicle frame;

[0027] Figure 2 This is a schematic diagram of an embodiment of a vehicle frame of the present application, showing the vehicle frame;

[0028] Figure 3 A partial enlarged view of position A of an embodiment of the vehicle frame of the present application;

[0029] Figure 4 This is a schematic diagram of an embodiment of the vehicle frame mold of the present application, showing the relative positions of the hem insert and the vehicle frame;

[0030] Figure 5 This is a schematic diagram of an embodiment of a vehicle frame mold of the present application, showing a clearance groove;

[0031] Figure 6 This is a partial enlarged view of position B of an embodiment of the vehicle frame mold of the present application, showing the rib groove;

[0032] Figure 7a A cross-sectional view of an embodiment of the vehicle frame mold of the present application, showing that the hem insert and the repositioning portion simultaneously abut against the hem portion;

[0033] Figure 7b This is a schematic diagram of an embodiment of a vehicle frame mold of the present application, showing another cross section;

[0034] Figure 8a A cross-sectional view of an embodiment of the vehicle frame mold of the present application, showing the unlocking of the hem insert and the hem portion;

[0035] Figure 8b This is a cross-sectional view of an embodiment of the vehicle frame mold of the present application, showing the relative positional relationship between the inclined ejector assembly and the inclined ejector hole when the hem insert and the hem portion are unlocked;

[0036] Figure 9a A cross-sectional view of an embodiment of the vehicle frame mold of the present application, showing the unlocking of the repositioning portion and the folding portion;

[0037] Figure 9b This is a cross-sectional view of an embodiment of the vehicle frame mold of the present application, showing the inclined ejector assembly ejecting the vehicle frame;

[0038] Figure 10 This is a schematic diagram of an embodiment of a vehicle frame mold of the present application, showing a hook-shaped component;

[0039] Figure 11 This is a schematic diagram of an embodiment of a vehicle frame mold of the present application, showing a positioning hole insert;

[0040] Figure 12 This is a schematic diagram of an embodiment of the vehicle frame mold of the present application, showing the separation of the positioning hole insert and the front mold;

[0041] Figure 13 A schematic diagram of an embodiment of a vehicle frame mold of the present application, showing an insert pin;

[0042] Figure 14 This is a schematic diagram of an embodiment of the vehicle frame mold of the present application, showing the displacement of the slider;

[0043] Figure 15 This is a schematic diagram of an embodiment of the vehicle frame mold of the present application, showing the displacement of the folding insert in a predetermined process;

[0044] Figure 16 This is a schematic diagram of an embodiment of a vehicle frame mold of the present application, showing a slider guide rod;

[0045] Figure 17 This is a schematic diagram of an embodiment of the vehicle skeleton mold of the present application, showing the rear mold plate and the rear mold fixing plate.

[0046] In the figure: 1, front mold; 11, positioning hole insert; 111, insert pin; 112, insert pin fixing seat; 2, rear mold; 21, folding edge insert; 211, rib position groove; 212, clearance groove; 22, repositioning part; 23, ejector plate; 231, slider; 2311, folding edge fixing rod; 2312, second guide hole; 232, third guide hole; 24, inclined ejector assembly; 25, hook assembly; 251, curved hook; 252, Vertical axis; 2521, first guide hole; 2522, first guide surface; 26, guide rod; 261, delay section; 262, guide section; 2621, second guide surface; 27, slider guide rod; 28, rear template; 29, rear template fixing plate; 100, vehicle frame; 101, folding edge portion; 102, first molding surface; 103, second molding surface; 104, positioning hole; 105, rib portion; 106, inclined top hole. DETAILED DESCRIPTION

[0047] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0048] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, the directions and positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of this application.

[0049] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0050] The terms "comprises" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0051] Vehicle frame 100 Figure 2 、 Figure 3 and Figure 8bAs shown, the outer side of the vehicle frame 100 is folded inward to form a folded edge portion 101 , and an inclined top hole 106 is provided on the inner side of the vehicle frame 100 .

[0052] The inventor has developed a vehicle frame mold, one embodiment of which is as follows: Figures 1 to 17 As shown, there are a front mold 1 and a rear mold 2, with a cavity defined between the front mold 1 and the rear mold 2, and the cavity is suitable for forming a vehicle frame 100. The rear mold 2 is movably provided with a hem insert 21, which is suitable for cooperating with the rear mold 2 and forming a hem portion 101. The hem insert 21 is movably provided inwardly with a repositioning portion 22, and the outer side of the repositioning portion 22 is suitable for contacting the inner side of the hem portion 101. The rear mold 2 is also provided with a slanted ejector assembly 24, which is suitable for forming a slanted ejector hole 106 and ejecting the vehicle frame 100 during the ejection process.

[0053] When the mold is opened, it is suitable for pre-ejection process (such as Figure 7a and Figure 8a As shown), the hem insert 21 is suitable for unlocking the hem portion 101, so that the hem insert 21 is separated from the hem portion 101, and the repositioning portion 22 is kept against the inner side of the hem portion 101, while the inclined ejector assembly 24 is moved along the mold opening direction, and the inclined ejector assembly 24 and the vehicle frame 100 are at a certain distance D along the mold opening direction (as shown). Figure 7b and Figure 8b Then the ejection process is carried out (as shown in Figure 9a As shown), the repositioning portion 22 moves inward and separates from the folding portion 101, and the inclined top assembly 24 moves toward the vehicle frame 100 (as shown Figure 9b As shown), the vehicle frame 100 is separated from the mold. Figures 7a to 9a ,as well as Figures 7b to 9b All other irrelevant parts have been deleted. Figure 7a It shows that after the forming process is completed, the repositioning portion 22 abuts against the hem portion 101, and the hem insert 21 also abuts against the hem portion 101; Figure 7b It shows that after the molding process is completed, the lift assembly 24 abuts against the inner wall of the lift hole 106; Figure 8a It shows that in the pre-ejection process, the hemming insert 21 is separated from the hemming portion 101, and the repositioning portion 22 abuts against the hemming portion 101. Figure 8b It shows that in the pre-ejection process, the inclined ejector assembly 24 first moves along the mold opening direction and maintains a certain distance D from the inclined ejector hole 106; Figure 9a It shows that during the ejection process, the repositioning portion 22 is separated from the folding portion 101. Figure 9b It is shown that during the ejection process, the inclined ejector assembly 24 drives the vehicle frame 100 to separate from the mold.

[0054] It is worth mentioning that the mold used in the present invention has a pre-ejection process and an ejection process, wherein the pre-ejection process includes controlling the inclined ejector assembly 24 to maintain a certain distance from the injection-molded vehicle frame 100, and separating the hemming insert 21 from the hemming portion 101. At this time, although the inclined ejector assembly 24 and the hemming insert 21 are both separated from the vehicle frame 100, the repositioning portion 22 always contacts the inner side of the hemming portion 101, and thus the position of the vehicle frame 100 relative to the mold can be maintained; then the ejection process is performed to separate the repositioning portion 22 from the hemming portion 101, and the inclined ejector assembly 24 is ejected from the vehicle frame 100 to complete the demoulding process. Among them, the unlocking of the hemming portion 101 by the hemming insert 21 means that the hemming insert 21 is separated from the hemming portion 101. In this state, if there is no limiting effect of other components, the hemming portion 101 will be demoulded. If the hemming insert 21 is not separated from the hemming portion 101, that is, the hemming insert 21 does not unlock the hemming portion 101, due to the limiting effect of the hemming insert 21, the vehicle frame 100 is directly ejected along the mold opening direction. Due to the obstruction of the hemming insert 21, the hemming portion 101 cannot be demolded, thereby causing the vehicle frame 100 to be unable to be demolded.

[0055] Conventional vehicle frames with a flanged portion 101 are typically demolded using the following process: first, the flanged portion 101 is unlocked by the flanged insert 21, and then the vehicle frame 100 is ejected using the inclined ejector assembly 24. To ensure the appearance and durability of the vehicle frame 100, a relatively slender ejector assembly 24 is generally used. Therefore, in actual use, since the inclined ejector assembly 24 has some contact with the plastic during the molding process, it is difficult to directly eject the vehicle frame 100, making it difficult to separate the vehicle frame 100 from the inclined ejector assembly 24. Forced separation can also cause surface damage to the vehicle frame 100. Furthermore, the inclined ejector hole 106 provided on the inner side of the vehicle frame 100 further increases the difficulty of separating the inclined ejector assembly 24 from the inclined ejector hole 106, making it difficult to demold the mold.

[0056] Since the outer side of the vehicle frame 100 is folded inward to form the folded edge portion 101, it is very complicated to separate the vehicle frame 100 having the folded edge portion 101. The conventional mold structure for forming the folded edge portion 101 is relatively complex and adopts multi-slider linkage control, which is inconvenient to operate and has a high damage rate. More importantly, due to the complex structure, the speed of the ejection process needs to be controlled during the ejection process to prevent the ejection mechanism from failing.

[0057] The vehicle frame mold using this solution uses a folding insert 21 and a repositioning part 22. The separation of the folding insert 21 from the folding part 101 does not cause the folding part 101 to be directly demolded. Therefore, the movement speed of the folding insert 21 can be increased to a certain extent, thereby increasing the demolding efficiency. In addition, since the repositioning part 22 moves inward, the folding part 101 is completely unlocked, and the inclined ejector assembly 24 consistent with the mold opening direction can directly drive the vehicle frame 100 to be demolded. Moreover, since the inclined ejector assembly 24 has completed the separation from the vehicle frame 100 in the pre-positioning process, during the ejection process, the inclined ejector assembly 24 can have a certain acceleration when contacting the vehicle frame 100, thereby making the ejection efficiency higher.

[0058] Compared with the traditional demolding method without a pre-ejection process, due to the unlocking of the folding panel 21, the vehicle frame 100 will be completely fixed on the inclined ejector assembly 24 through the inclined ejector hole 106, and the inclined ejector assembly 24 generally adopts an ejector pin structure. Therefore, the heavier weight of the vehicle frame 100 will cause the inclined ejector assembly 24 to break and fail; in addition, even if the inclined ejector assembly 24 is driven, since there is almost no gap between the two, the ejection efficiency is low, it is difficult to separate the vehicle frame 100 and the inclined ejector assembly 24, and it is more likely to form a deeper ejector pin mark, affecting the appearance and quality of the product.

[0059] As a preferred option, Figure 2 As shown, the vehicle frame 100 includes a first molding surface 102 and a second molding surface 103. The second molding surface 103 is arranged on the outside of the first molding surface 102, and the first molding surface 102 and the second molding surface 103 form a certain angle. The outer edge of the second molding surface 103 is folded inward to form a folding portion 101. The inner side of the second molding surface 103 is provided with a rib portion 105. The setting direction of the rib portion 105 is consistent with the displacement direction of the folding insert 21 during the pre-ejection process. 1 is provided with a rib groove 211, which is suitable for forming the rib portion 105; during the predetermined process, the hemming insert 21 is separated from the hemming portion 101, and at the same time, the rib groove 211 is separated from the rib portion 105; the outer side of the hemming insert 21 is provided with a clearance groove 212 that matches the repositioning portion 22. When the forming process is carried out, the repositioning portion 22 is suitable for being placed in the clearance groove 212, and the outer side of the repositioning portion 22 and the outer side of the hemming insert 21 are suitable for simultaneously contacting the inner side of the hemming portion 101.

[0060] like Figure 8a As shown, in order to unlock the hemming insert 21 and the hemming portion 101, the hemming insert 21 has a variety of different displacement routes. In this specific embodiment, as shown in FIG. Figure 8aAs shown, the folding portion 101 can be unlocked by moving along the positive direction of the Y-axis or by moving obliquely downward along the Y-axis. In order to demold the rib portion 105, it is necessary to make the displacement direction of the folding insert 21 during the pre-ejection process consistent with the setting direction of the rib portion 105, so that when the vehicle frame 100 has a complex surface, the folding portion 101 can be successfully unlocked during the pre-ejection process. A clearance groove 212 matching the repositioning portion 22 is provided on the outer side of the folding insert 21 to facilitate the design of the vehicle frame 100 and avoid the inner side of the vehicle frame 100 from forming a smooth surface, so that the vehicle frame 100 does not sacrifice aesthetics or function for the sake of molding.

[0061] As a preferred option, Figure 3 As shown, a plurality of positioning holes 104 are provided on the first molding surface 102, and the demolding directions of the positioning holes 104 respectively form a certain angle with the demolding direction of the first molding surface 102; a positioning hole insert 11 is movably provided on the front mold 1, and the positioning hole insert 11 is suitable for cooperating with the rear mold 2 and forming the positioning holes 104, and the positioning hole insert 11 is suitable for being displaced relative to the demolding direction of the positioning holes 104, thereby separating the positioning holes 104 from the positioning hole insert 11;

[0062] When the mold is opened for the pre-ejection process, the positioning hole insert 11 is suitable for moving relative to the positioning hole 104 in the demolding direction, and controls the displacement of the vehicle frame 100 along the mold opening direction, while ensuring that the inclined ejector assembly 24 has a certain distance from the vehicle frame 100 along the mold opening direction.

[0063] Since the vehicle frame 100 is provided with a positioning hole 104, it is necessary to movably provide a positioning hole insert 11 on the front mold 1, so that during the demoulding process, the positioning hole insert 11 and the vehicle frame 100 are displaced and generate relative movement, and the relative movement direction is the demoulding direction of the positioning hole 104, thereby facilitating the demoulding of the positioning hole 104 (such as Figure 12 shown).

[0064] It is worth mentioning that since the positioning hole insert 11 is suitable for forming the positioning hole 104, in actual use, as the rear mold 2 is opened, the friction between the positioning hole insert 11 and the positioning hole 104 will force the positioning hole insert 11 to move, and at the same time control the vehicle frame 100 not to move immediately with the rear mold 2, and its movement speed is different from the opening speed of the rear mold 2, thereby reducing the displacement distance of the vehicle frame 100 along the opening direction, and then making there a distance D between the inclined top assembly 24 and the inclined top hole 106. The reason is that the inclined top assembly 24 is installed on the rear mold 2. During the mold opening process, the moving speed of the inclined top assembly 24 is the same as that of the rear mold 2 and is greater than the moving speed of the vehicle frame 100, thereby forming a distance D, realizing the purpose of the distance between the pre-elevation holes 106 of the inclined top assembly 24 in the pre-ejection process, and reducing the use of other driving components. Its structure is simpler and its durability is also higher.

[0065] As a preferred option, Figure 13 As shown, the positioning hole insert 11 includes a pin 111 and a pin fixing seat 112. The pin 111 is suitable for being detachably fixed on the pin fixing seat 112 from the inside to the outside, and is suitable for forming the positioning hole 104. The pin fixing seat 112 is suitable for moving relative to the demolding direction of the positioning hole 104 and is slidably connected to the front mold 1.

[0066] The positioning hole insert 11 includes a detachable insert pin 111 and an insert pin fixing seat 112, so that the insert pin 111 can be easily replaced when the insert pin 111 is damaged.

[0067] As a preferred option, Figures 7a to 9a As shown, the displacement direction of the hem insert 21 during the pre-ejection process is parallel to the horizontal plane and forms an acute angle with the negative direction of the X-axis. The repositioning portion 22 is movably connected to the hem insert 21 along the Y-axis. It is worth mentioning that in this specific embodiment, the horizontal plane is YOZ.

[0068] Since there are many forms of unlocking the hemming insert 21, the repositioning part 22 and the hemming part 101, the best choice is that the displacement direction of the hemming insert 21 during the pre-ejection process is set parallel to the horizontal plane and forms an acute angle with the negative direction of the X-axis. The repositioning part 22 and the hemming insert 21 are movably connected along the Y-axis, which facilitates the demoulding of the rib part 105 and the movement of the repositioning part 22. Since it moves along the Y-axis direction, the driving structure for realizing this movement is relatively simple, thereby further simplifying the structure of the mold and increasing the durability of the mold.

[0069] As a preferred option, Figure 10As shown, a hook-shaped component 25 is provided on the rear mold 2, the vertical axis 252 of the hook-shaped component 25 is arranged along the Y-axis, and a repositioning portion 22 is provided at the bent hook 251 of the hook-shaped component 25. The hook-shaped component 25 is suitable for moving along the Y-axis and at the same time drives the repositioning portion 22 to move along the Y-axis.

[0070] A hook-shaped component 25 is provided, and the vertical axis 252 of the hook-shaped component 25 is provided along the Y-axis, and a repositioning portion 22 is provided at the bent hook 251 of the hook-shaped component 25. This can simplify the structure of the repositioning portion 22, and this structure facilitates the control of the displacement of the hook-shaped component 25, that is, a variety of limit components can be used to limit the rotation of the hook-shaped component 25 when it moves along the Y-axis direction.

[0071] As a preferred option, Figure 10 As shown, a first guide hole 2521 is provided at the tail end of the vertical axis 252 of the hook component 25 along the X-axis, and a first guide surface 2522 is defined on the inner wall of the first guide hole 2521. A guide rod 26 is provided on the rear mold 2 along the X-axis. The guide rod 26 is slidably provided in the first guide hole 2521, and a second guide surface 2621 is provided on the guide rod 26. The second guide surface 2621 is suitable for contacting the first guide surface 2522 and driving the hook component 25 to move along the Y-axis.

[0072] The drive method of driving the hook assembly 25 along the Y-axis by driving the guide rod 26 can simplify the drive assembly's efficiency. Furthermore, since the guide rod 26 moves along the X-axis, aligning with the mold opening and closing direction, it can be more conveniently configured, reducing the size of the vehicle frame mold. It is also worth noting that this drive method may generate a certain amount of torque in the hook assembly 25. Therefore, a limiter assembly can be provided on the hook assembly 25 to prevent the hook assembly 25 from being stationary along the X-axis. This configuration is conventional and will not be discussed further here.

[0073] As a preferred option, Figures 7a to 9a As shown, the guide rod 26 is detachably mounted on the rear mold 2. The guide rod 26 is provided with a delay section 261 and a guide section 262 in sequence along the positive direction of the X-axis. The second guide surface 2621 is provided on the guide section 262. The guide section 262 forms an acute angle with the positive direction of the X-axis. The delay section 261 is provided parallel to the X-axis. When the mold is opened for the pre-ejection process, the delay section 261 is adapted to pass through the first guide hole 2521 and keep the hook assembly 25 stationary on the Y-axis; when the ejection process is performed, the guide section 262 is adapted to pass through the first guide hole 2521 and make the second guide surface 2621 contact the first guide surface 2522, thereby driving the hook assembly 25 to move inward on the Y-axis and the realignment portion 22 to move inward and separate from the folding portion 101.

[0074] Installing the guide rod 26 on the rear mold 2 can drive the guide rod 26 to move in the negative direction of the X-axis when the rear mold 2 is opened, so that the contact portion of the guide rod 26 with the first guide hole 2521 changes from the delay section 261 to the guide section 262. When the mold is closed, the action is reversed, thereby achieving reset. This method of setting the guide rod 26 reduces the use of additional cylinders and utilizes the displacement difference formed when the mold is opened to achieve separation of the repositioning portion 22 and the folding portion 101. It is more efficient and has a simpler structure. It can keep the repositioning portion 22 and the folding portion 101 together during the pre-ejection process; and separate the repositioning portion 22 and the folding portion 101 during the ejection process. The delay section 261 is set to keep the hook component 25 stationary on the Y-axis during the pre-ejection process. It uses a mechanical structure to achieve a delay function, which has better stability and avoids mold collision or other interference phenomena.

[0075] As a preferred option, Figure 14 and Figure 15 As shown, an ejector plate 23 is movably provided on the rear mold 2 along the X-axis, and an inclined ejector assembly 24 is provided along the X-axis, and one end of the inclined ejector assembly 24 abuts against the ejector plate 23, and the other end of the inclined ejector assembly 24 is suitable for abutting against the rear side of the vehicle frame 100; a slider 231 is slidably provided on the ejector plate 23 along the Y-axis, and a folding fixing rod 2311 is slidably provided on the slider 231, one end of the folding fixing rod 2311 is slidably provided on the slider 231, and the other end of the folding fixing rod 2311 is detachably connected to the folding insert 21, and the folding fixing rod 2311 is suitable for driving the folding insert 21 to unlock the folding portion 101, thereby separating the folding insert 21 from the folding portion 101.

[0076] like Figure 14 and Figure 15 As shown, when the slider 231 moves outward, since one end of the folding fixing rod 2311 is slidably set on the slider 231, it slides on the slider 231, thereby changing the relative position of the folding panel 21 relative to the vehicle frame 100, thereby separating the folding panel 21 from the folding portion 101.

[0077] As a preferred option, Figure 16 and Figure 17 As shown, the ejection plate 23 is provided with a third guide hole 232, and the slider 231 is provided with a second guide hole 2312. The second guide hole 2312 is connected to the third guide hole 232. A slider guide rod 27 is provided through the second guide hole 2312 and the third guide hole 232. The slider guide rod 27 is arranged outward along the X-axis. When the ejection plate 23 is driven to move along the X-axis, the slider 231 is suitable for generating displacement along the slider guide rod 27.

[0078] The slider 231 and the second guide hole 2312 are provided, and in conjunction with the slider guide rod 27, when the drive assembly drives the ejector plate 23 to move, the slider 231 moves outward, thereby changing the relative position of the hemming insert 21 relative to the vehicle frame 100 and separating the hemming insert 21 from the hemming portion 101. In this specific embodiment, one end of the slider guide rod 27 is fixed to the rear mold plate 28, and the other end is fixed to the rear mold fixing plate 29. When the mold is opened, the rear mold plate 28 and the rear mold fixing plate 29 move simultaneously, while the slider guide rod 27 is stationary relative to the rear mold 2. At this time, driving the ejector plate 23 along the positive direction of the X-axis causes the slider 231 to slide on the slider guide rod 27, thereby causing the slider 231 to slide outward. This arrangement has the simplest structure and the highest durability. In addition, the slider guide rod 27 is hinged at both ends to reduce interference. This is a prior art technique known to those skilled in the art and will not be further described here.

[0079] The above describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A vehicle frame mold, comprising a front mold and a rear mold, wherein a cavity is defined between the front mold and the rear mold, the cavity being suitable for molding the vehicle frame, characterized in that: The outer side of the vehicle frame is folded inward to form a folded edge portion, and a folded edge insert is movably provided on the rear mold, and the folded edge insert is suitable for cooperating with the rear mold and forming the folded edge portion. A repositioning portion is movably provided inwardly on the folded edge insert, and the outer side of the repositioning portion is suitable for contacting the inner side of the folded edge portion. The rear mold is also provided with an inclined ejection component, and the inclined ejection component is suitable for ejecting the vehicle frame, and an inclined ejection hole is provided on the inner side of the vehicle frame, and the inclined ejection component is suitable for forming the inclined ejection hole; When the mold is opened, a pre-ejection process is suitable for performing, wherein the hemming insert is suitable for unlocking the hemming portion, thereby separating the hemming insert from the hemming portion, at this time keeping the repositioning portion against the inner side of the hemming portion, while moving the inclined ejector assembly along the mold opening direction, and making a certain distance between the inclined ejector assembly and the vehicle frame along the mold opening direction; then an ejection process is performed, wherein the repositioning portion moves inward and separates from the hemming portion, and the inclined ejector assembly moves toward the vehicle frame, thereby achieving separation of the vehicle frame from the mold; The vehicle frame includes a first molding surface and a second molding surface, the second molding surface is arranged on the outside of the first molding surface, and the first molding surface and the second molding surface form a certain angle, the outer edge of the second molding surface is folded inward to form the folding portion, and a rib portion is provided on the inner side of the second molding surface, and the setting direction of the rib portion is consistent with the displacement direction of the folding insert during the pre-ejection process, and a rib groove is provided on the folding insert, and the rib groove is suitable for forming the rib portion; during the pre-ejection process, the folding insert is separated from the folding portion, and the rib groove is separated from the rib portion; the outer side of the folding insert is provided with a clearance groove matching the repositioning portion, and when the molding process is performed, the repositioning portion is suitable for being placed in the clearance groove, and the outer side of the repositioning portion and the outer side of the folding insert are suitable for simultaneously contacting the inner side of the folding portion.

2. The vehicle frame mold according to claim 1, wherein: A plurality of positioning holes are provided on the first molding surface, and the demoulding directions of the positioning holes respectively form a certain angle with the demoulding direction of the first molding surface; a positioning hole insert is movably provided on the front mold, and the positioning hole insert is suitable for cooperating with the rear mold to form the positioning hole, and the positioning hole insert is suitable for being displaced relative to the demoulding direction of the positioning hole, so that the positioning hole and the positioning hole insert are separated; When the mold is opened for the pre-ejection process, the positioning hole insert is suitable for moving relative to the demolding direction of the positioning hole, and controls the displacement of the vehicle frame along the mold opening direction, while ensuring that the inclined ejector assembly and the vehicle frame have a certain distance along the mold opening direction.

3. The vehicle frame mold according to claim 2, characterized in that: The positioning hole insert includes an insert pin and a insert pin fixing seat. The insert pin is suitable for being detachably fixed on the insert pin fixing seat from the inside to the outside and is suitable for forming the positioning hole. The insert pin fixing seat is suitable for moving relative to the demolding direction of the positioning hole and is slidably connected to the front mold.

4. The vehicle frame mold according to claim 2, wherein: The displacement direction of the hemming insert during the pre-ejection process is parallel to the horizontal plane and forms an acute angle with the negative direction of the X-axis. The repositioning portion is movably connected to the hemming insert along the Y-axis.

5. The vehicle frame mold according to claim 4, characterized in that: A hook-shaped component is provided on the rear mold, the vertical axis of the hook-shaped component is arranged along the Y-axis, and the repositioning part is provided at the hook of the hook-shaped component. The hook-shaped component is suitable for moving along the Y-axis and simultaneously drives the repositioning part to move along the Y-axis.

6. The vehicle frame mold according to claim 5, characterized in that: A first guide hole is provided at the tail end of the vertical axis of the hook-shaped component along the X-axis, and a first guide surface is defined on the inner wall of the first guide hole. A guide rod is provided on the rear mold along the X-axis, and the guide rod is slidably provided in the first guide hole, and a second guide surface is provided on the guide rod, and the second guide surface is suitable for contacting the first guide surface and driving the hook-shaped component to move along the Y-axis.

7. The vehicle frame mold according to claim 6, characterized in that: The guide rod is detachably mounted on the rear mold, and is provided with a delay section and a guide section in sequence along the positive direction of the X-axis. The second guide surface is provided on the guide section, and the guide section forms an acute angle with the positive direction of the X-axis. The delay section is arranged parallel to the X-axis. When the mold is opened for the pre-ejection process, the delay section is suitable for passing through the first guide hole and keeping the hook-shaped component stationary on the Y-axis; when the ejection process is performed, the guide section is suitable for passing through the first guide hole and making the second guide surface contact the first guide surface, thereby driving the hook-shaped component to move inward on the Y-axis, and the repositioning portion moves inward and separates from the folding portion.

8. The vehicle frame mold according to claim 7, characterized in that: An ejector plate is movably provided on the rear mold along the X-axis, the inclined ejector assembly is provided along the X-axis, and one end of the inclined ejector assembly abuts against the ejector plate, and the other end of the inclined ejector assembly is suitable for abutting against the rear side of the vehicle frame; a slider is slidably provided on the ejector plate along the Y-axis, a folding fixing rod is slidably provided on the slider, one end of the folding fixing rod is slidably provided on the slider, and the other end of the folding fixing rod is detachably connected to the folding insert, and the folding fixing rod is suitable for driving the folding insert to unlock the folding part, thereby separating the folding insert from the folding part.

9. The vehicle frame mold according to claim 8, characterized in that: A third guide hole is provided on the ejection plate, and a second guide hole is provided on the slider. The second guide hole is connected to the third guide hole. A slider guide rod is provided through the second guide hole and the third guide hole. The slider guide rod is arranged outward along the X-axis. When the ejection plate is driven to move along the X-axis, the slider is suitable for generating displacement along the slider guide rod.

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