Die for outer decoration plate of automobile tail door

Abstract

The invention discloses an automobile tail door outer decoration plate mold which comprises a movable mold body, a fixed mold body and a mold core set, the movable mold body, the fixed mold body and the mold core set are matched with one another to form a mold cavity, the mold cavity is suitable for forming an ornament, and the peripheral side of the ornament is at least provided with a bent edge inversely buckled with the mold cavity; the mold core set comprises a first mold core set, the first mold core set is suitable for being matched with each other to mold the inner side face of the bent edge, the first mold core set comprises a first ejector block and a second ejector block, the first ejector block and the second ejector block are suitable for being tightly combined at the fixed mold, and the first ejector block is suitable for forming the bent part of the bent edge. The second jacking block is suitable for forming the part, connected with the bent part, of the bent edge, the jacking directions of the first jacking block and the second jacking block incline in the direction away from the bent edge, and the inclination angle of the jacking direction of the first jacking block is smaller than that of the jacking direction of the second jacking block; the ejection mechanism has the advantage that the demolding process is smooth and stable.

Description

Technical Field

[0001] The present application relates to the technical field of mold equipment, and in particular to a mold for an automobile tailgate exterior panel. Background Art

[0002] During the assembly process, cars require a variety of accessories for decoration and beautification, including interior and exterior trims. Among them, car exterior trims are external parts connected to the car body by bolts or clips, which play a decorative and protective function on the vehicle. They mainly include body coverings such as front and rear bumpers, grilles, and tailgate exterior panels.

[0003] However, the existing demolding process of the tailgate exterior panel has the following defects: in order to provide better connectivity and protection, the tailgate exterior panel usually has bent edges on all sides for snapping connection with the vehicle body and connectors, but this structure will affect the separation of the core during the demolding process of the mold, resulting in increased difficulty in demolding or even failure to demold. Summary of the invention

[0004] One object of the present application is to provide a mold for an automobile tailgate exterior panel that can be demoulded smoothly.

[0005] To achieve the above purpose, the technical solution adopted in the present application is: a mold for an automobile tailgate exterior panel, comprising a movable mold, a fixed mold and a core group, wherein the movable mold, the fixed mold and the core group cooperate with each other to form a cavity, wherein the cavity is suitable for molding a decorative part, and the peripheral side of the decorative part has at least one bent edge that is undercut with the cavity; The core group includes a first core group, which is suitable for cooperating with each other to form the inner side of the bending edge. The first core group includes a first top block and a second top block, which are suitable for being tightly combined at the fixed mold. The first top block is suitable for forming the bending part of the bending edge, and the second top block is suitable for forming the part where the bending edge and the bending part meet. The lifting direction of the first top block and the second top block is inclined in a direction away from the bending edge, and the inclination angle of the lifting direction of the first top block is smaller than the inclination angle of the lifting direction of the second top block, so that the first top block and the second top block are away from each other during the lifting process.

[0006] In some embodiments, the core group includes a second core group, the second core group is suitable for cooperating in molding the outer side surface of the bending edge, the second core group includes a plurality of third top blocks, connecting blocks are arranged between the third top blocks, and the connecting blocks are suitable for at least limiting the connection drop of the third top blocks in the cavity.

[0007] In some embodiments, the third top block is provided with connecting blocks on at least two sides in different directions outside the cavity; the third top block forms the outer side surface on one side of the bending edge in a one-to-one correspondence, and the connecting blocks are arranged correspondingly at the bending part of the bending edge.

[0008] In some embodiments, a positioning block and a positioning groove are respectively provided on the first core group and the second core group, and the positioning block and the positioning groove are suitable for being engaged with each other so that the first core group and the second core group are synchronously lifted, and during the lifting process of the first core group and the second core group, the positioning block and the positioning groove are suitable for being away from each other.

[0009] In some embodiments, the engagement depth of the positioning block and the positioning groove is less than the distance between the first core group and the second core group after the first core group and the second core group are lifted, so that the first core group and the second core group do not interfere with each other in the corresponding lifting direction.

[0010] In some embodiments, the contact surface between the first top block and the second top block gradually inclines from bottom to top in a direction away from the bending edge.

[0011] In some embodiments, the contact surface between the first top block and the second top block is parallel to the inclination angle of the lifting direction of the first top block, or the degree of inclination is greater than the inclination angle of the lifting direction of the first top block.

[0012] In some embodiments, a guide portion is provided on the first ejector block and the second ejector block at a side away from the cavity, a guide groove is provided on the fixed mold, and the guide portion is suitable for sliding along the guide groove.

[0013] In some embodiments, a mold base and a lifting mechanism are provided below the fixed mold, the lifting mechanism is liftably provided on the mold base, the upper end of the lifting mechanism is connected to the core group, a first stroke switch and a second stroke switch are provided on the mold base, the lifting mechanism is suitable for lifting and triggering the first stroke switch and the second stroke switch, when the lifting mechanism triggers the first stroke switch, the core group and the fixed mold are tightly matched, when the lifting mechanism triggers the second stroke switch, the first ejector block, the second ejector block and the third ejector block are separated from each other, and the minimum separation distance between the first core group and the second core group is not less than the width of the projection of the bending edge in the plane perpendicular to the demolding direction.

[0014] In some embodiments, the peripheral side of the decorative part has a bending edge of a U-shaped structure that is inverted with the cavity, and the first top block and the second top block are spaced apart along the bending edge. The first top block corresponds to the inner side surface of the bending portion of the bending edge, and the second top block corresponds to the inner side surface on one side of the bending edge.

[0015] Compared with the prior art, the beneficial effects of this application are: 1. The automobile tailgate exterior panel mold of the present application is designed by splitting the core group and setting the inclination angles of the different top blocks in the first core group respectively, so that the adjacent first top blocks and the second top blocks in the first core group can be demolded without interfering with each other, ensuring the normal movement of the first core group to improve the smoothness of demolding.

[0016] 2. The automobile tailgate exterior panel mold of the present application is designed by splitting the core group and strengthening the connection of each top block in the second core group, so that the second core group can be ejected synchronously, thereby improving the mutual balance between the third top blocks, and being able to control the product splicing line on the trim and optimize the appearance of the trim. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded structural view according to a preferred embodiment of the present application.

[0018] Figure 2 It is a schematic structural diagram of a core assembly in a mold closing state according to a preferred embodiment of the present application.

[0019] Figure 3 It is a schematic diagram of the cooperation between the core assembly and the decorative part in the mold closing state according to a preferred embodiment of the present application.

[0020] Figure 4 It is a schematic structural diagram of a core assembly in a mold opening state according to a preferred embodiment of the present application.

[0021] Figure 5 It is a schematic structural diagram of the first core group in a mold closing state according to a preferred embodiment of the present application.

[0022] Figure 6 It is a schematic structural diagram of the first core group in the mold opening state according to a preferred embodiment of the present application.

[0023] Figure 7 It is a schematic diagram of the cooperation between the first core group and the second core group in the mold closing state according to a preferred embodiment of the present application.

[0024] Figure 8 It is a schematic diagram of the disassembled state of the second core group according to a preferred embodiment of the present application.

[0025] Fig. 9 It is a schematic diagram of the cooperation between the first core group and the second core group in the mold opening state according to a preferred embodiment of the present application.

[0026] Fig.10 It is a schematic diagram of the separation of the first core group and the fixed mold according to a preferred embodiment of the present application.

[0027] In the figure: 1. movable mold; 2. fixed mold; 21. guide groove; 3. decorative part; 31. bending edge; 311. bending part; 4. first core group; 41. first top block; 42. second top block; 43. contact surface; 44. guide part; 45. positioning groove; 5. second core group; 53. third top block; 54. connecting block; 55. positioning block; 6. mold base; 61. first travel switch; 62. second travel switch; 7. lifting mechanism. DETAILED DESCRIPTION

[0028] 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.

[0029] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present application.

[0030] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0031] The terms "including" 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 comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0032] The present application is further described below with reference to the accompanying drawings: like Figures 1 to 10As shown, the present application provides a mold for an automobile tailgate exterior panel, comprising a movable mold 1, a fixed mold 2 and a core group. The movable mold 1, the fixed mold 2 and the core group cooperate with each other to form a cavity, and the cavity is suitable for molding a decorative part 3. The peripheral side of the decorative part 3 has at least one bent edge 31 that is inverted with the cavity.

[0033] The undercut between the bent edge 31 of the decorative part 3 and the cavity means that after the decorative part 3 is formed in the cavity, the bent edge 31 of the decorative part 3 will structurally interfere with at least part of the cores in the core group in the opening direction of the fixed mold 2 and the movable mold 1, making it difficult or even impossible to demold the decorative part 3. Forcible removal may cause damage to the decorative part 3.

[0034] like Figure 3 As shown, the bending edge 31 of the decorative part 3 will have structural interference with the core group in the vertical direction (i.e., the mold opening direction), especially the inner side of the bending edge 31 will be stuck with the core group in the mold opening direction. Therefore, during the mold opening process, it is necessary to move the core group on the inner side of the bending edge 31 away from the bending edge 31 to reduce the obstruction and restriction on the bending edge 31, so that the bending edge 31 can obtain sufficient moving space for smooth demolding.

[0035] Since the molding and demolding requirements of the inner and outer sides of the bending edge 31 are different, the core group is divided into a first core group 4 and a second core group 5 according to the position and function of the core group relative to the bending edge 31 to improve the molding quality of the decorative part 3 and reduce the difficulty of demolding.

[0036] The first core group 4 mainly serves to reduce the difficulty of demolding the decorative part 3. The first core group 4 is suitable for cooperating with each other to form the inner side of the bent edge 31. The first core group 4 includes a first top block 41 and a second top block 42. The first top block 41 and the second top block 42 are suitable for being tightly combined at the fixed mold 2. Normally, when the first top block 41 and the second top block 42 are combined with the fixed mold 2, the first top block 41 and the second top block 42 can cooperate with the fixed mold 2 to form a flat surface on one side of the cavity.

[0037] The first top block 41 is suitable for forming the bending portion 311 of the bending edge 31, and the second top block 42 is suitable for forming the portion where the bending edge 31 connects with the bending portion 311. It is understandable that in the traditional mold molding process, if a single core block is used to demold the inner side of the bending edge 31, it is very easy to cause structural interference with one or more edges therein, thereby affecting the demolding of the product. For this reason, the present application splits the single core block into one or more first top blocks 41 and second top blocks 42 to mold different positions of the decorative part 3. Under the premise of ensuring that the molding effect of the decorative part 3 is not reduced, the demolding actions of the first top block 41 and the second top block 42 are separately designed and optimized, so that the first top block 41 and the second top block 42 can have structural interference with each other and with the decorative part 3 during the mold opening and demolding process, thereby improving smooth demolding.

[0038] A specific design scheme of the first top block 41 and the second top block 42 is as follows Figure 5 and 6 As shown, the lifting direction of the first top block 41 and the second top block 42 is inclined in the direction away from the bending edge 31, so that the first top block 41 and the second top block 42 can gradually move away from the bending edge 31 during the process of opening the mold and lifting the decorative part 3, thereby achieving structural avoidance. In order to ensure that the first top block 41 and the second top block 42 do not interfere with each other during the lifting process, the inclination angle of the lifting direction of the first top block 41 is smaller than the inclination angle of the lifting direction of the second top block 42, so that the first top block 41 and the second top block 42 move away from each other during the lifting process, that is, the movement range of the second top block 42 in the horizontal direction away from the bending edge 31 will be greater than the movement range of the first top block 41 in the horizontal direction away from the bending edge 31, so that the second top block 42 can quickly avoid enough space for the first top block 41 to move and pull the core at the first time during the mold opening and lifting process. It can also be understood that the offset movement and core pulling are achieved by the lifting angle difference between the first top block 41 and the second top block 42 to reduce structural interference.

[0039] The first core group 4 structural solution of the present application can be applied to the demoulding operation of the decorative part 3 which is annularly inverted on the cavity.

[0040] like Figure 5 and 6In the illustrated embodiment, in order to ensure the integrity of the cavity and the stability of the first core group 4, the first top block 41 and the second top block 42 will abut against each other in the mold closing state. At this time, the position of the contact surface 43 between the first top block 41 and the second top block 42 is related to whether the first top block 41 and the second top block 42 can be smoothly separated. In the present application, by setting the contact surface 43 between the first top block 41 and the second top block 42 to be located on the side of the first top block 41 away from the cavity and the side of the second top block 42 close to the cavity, the two sides of the first top block 41 and the second top block 42 can reduce the structural collision interference between each other in the process of moving away from each other, thereby improving the smoothness of the demolding process.

[0041] like Figure 5 and 6 In the illustrated embodiment, the contact surface 43 between the first top block 41 and the second top block 42 is gradually inclined from bottom to top in a direction away from the bending edge 31. It can be understood that since the first core group 4 is synchronously lifted from the bottom as a whole during the mold opening and lifting process, and since the lifting inclination angle of the second top block 42 is greater than the lifting inclination angle of the first top block 41, when the bottom of the first core group 4 is lifted by the same distance, the vertical rise of the second top block 42 will be less than the vertical rise of the first top block 41. Therefore, by designing the contact surface 43 as an inclined structure, the probability of structural interference between the upper side of the second top block 42 close to the contact surface 43 and the lower side of the first top block 41 close to the contact surface 43 during the mold opening and lifting process can be further reduced, thereby improving the smoothness of demolding.

[0042] like Fig.10 In the illustrated embodiment, a guide portion 44 is provided on the side of the first top block 41 and the second top block 42 away from the cavity, a guide groove 21 is provided on the fixed mold 2, and the guide portion 44 is suitable for sliding along the guide groove 21. It can be understood that the guide portion 44 and the guide groove 21 are interlocked with each other, and can limit the direction other than the sliding direction of the guide portion 44, thereby improving the stability of the first top block 41 and the second top block 42 in the mold closing state.

[0043] In some embodiments, a guide groove 21 may be provided on the first top block 41 and the second top block 42 away from the cavity, and a guide portion 44 may be provided on the fixed mold 2 .

[0044] In some embodiments, the number of first top blocks 41 can be determined according to the number of bent portions 311 of the bent edge 31 of the trim 3, and the number of second top blocks 42 can be determined according to the number of edges connected to the bent portions 311 of the bent edge 31 of the trim 3. Normally, when the bent edge 31 of the trim 3 is continuously formed in the present application, the number of second top blocks 42 will be one more than the number of first top blocks 41.

[0045] like Figure 1 , 2 In the embodiments shown in and 4, the peripheral side of the decorative part 3 has a U-shaped bending edge 31 that is inverted with the cavity, and the first top block 41 and the second top block 42 are spaced apart along the bending edge 31. The first top block 41 corresponds to the inner side surface of the bending portion 311 of the formed bending edge 31, and the second top block 42 corresponds to the inner side surface on one side of the formed bending edge 31. According to the above description of the number of the first top block 41 and the second top block 42, the number of the bending portions 311 of the U-shaped bending edge 31 is two, so the number of the first top blocks 41 is two, and the number of the second top blocks 42 is three.

[0046] The second core group 5 mainly serves to improve the molding quality of the decorative part 3. The second core group 5 is suitable for cooperating in molding the outer side surface of the bending edge 31. The second core group 5 includes a plurality of third top blocks 53. Connecting blocks 54 are provided between the third top blocks 53. The connecting blocks 54 are suitable for at least limiting the connection drop of the third top blocks 53 in the cavity. Since the appearance requirements of the outer side surface of the bending edge 31 of the decorative part 3 are relatively high, it is necessary to control the splicing line formed by the second core group 5 within a certain range (for example, 0.02 mm). Therefore, there are certain requirements for the connection accuracy between the third top blocks 53. In the present application, a connecting block 54 is provided between two adjacent third top blocks 53 to strengthen the connection between the two, and the splicing line of the decorative part 3 is controlled by limiting the connection drop of the third top block 53 in the cavity.

[0047] Typically, the outer side surface of the decorative component 3 of the present application is the appearance surface. By controlling the splicing line of the decorative component 3, the aesthetics of the appearance surface of the decorative component 3 can be improved, so that the appearance surface of the decorative component 3 meets customer requirements.

[0048] It is worth noting that, since the second core group 5 has the same mold opening and ejection process as the first core group 4, the third ejector block 53, after being connected through the connecting block 54, can improve the synchronization, stability and balance in the mold opening and ejection process, making the mold opening and ejection process smoother.

[0049] like Figure 7 In the illustrated embodiment, the third top blocks 53 correspond one by one to the outer side surfaces on one side of the formed bending edge 31, and the connecting blocks 54 are arranged correspondingly to the bending portion 311 of the bending edge 31. Such a design can ensure that each side of the bending edge 31 is formed separately by a third top block 53, thereby improving the forming accuracy of each side of the bending edge 31, reducing the appearance of splicing lines within a large flat surface, and reducing the visual impact on the appearance caused by the unstable connection of the third top block 53.

[0050] like Figure 8In the illustrated embodiment, the third top blocks 53 are provided with connecting blocks 54 at least on both sides in different directions outside the cavity, which can further enhance the connection accuracy between the third top blocks 53, limit the connection drop of the third top blocks 53 in different direction planes within the cavity, and improve the connection stability between the third top blocks 53.

[0051] like Figure 8 In the illustrated embodiment, the two third top blocks 53 cooperate to form an engaging groove, and the connecting block 54 is engaged in the engaging groove and fixed by a fastener.

[0052] like Fig. 9 In the illustrated embodiment, a positioning block 55 and a positioning groove 45 are respectively provided on the first core group 4 and the second core group 5. The positioning block 55 and the positioning groove 45 are adapted to be engaged with each other so that the first core group 4 and the second core group 5 are synchronously lifted. During the lifting process of the first core group 4 and the second core group 5, the positioning block 55 and the positioning groove 45 are adapted to be away from each other. Since the lifting amplitude of the first ejecting block 41 and the second ejecting block 42 in the first core group 4 is different from the lifting amplitude of the third ejecting block 53 in the second core group 5, the positioning block 55 and the positioning groove 45 are set to be away from each other, which can reduce the structural interference of the first core group 4 and the second core group 5 during the process of mold opening and lifting, thereby improving the smoothness of mold opening.

[0053] It can be understood that the mutual engagement of the positioning block 55 and the positioning groove 45 can also improve the structural stability of the first core group 4 and the second core group 5 when forming the cavity, thereby improving the molding quality.

[0054] In some embodiments, the engagement depth of the positioning block 55 and the positioning groove 45 is less than the distance between the first core group 4 and the second core group 5 after the first core group 4 and the second core group 5 are lifted, so that the first core group 4 and the second core group 5 do not interfere with each other in the corresponding lifting direction. The main purpose of this design is to facilitate the disassembly and separation of the first core group 4 and the second core group 5. Since the cores are all installed on the ejector rod of the lifting mechanism 7, the lifting direction of the core is the length direction of the ejector rod. During the process of disassembling the core from the ejector rod, it is necessary to slide along the ejector rod to detach. At this time, if the positioning block 55 and the positioning groove 45 still remain in the engagement state, the core in the first core group 4 and the core in the second core group 5 will cause structural interference, resulting in the inability to be removed from the ejector rod. The same is true when installing the core. Therefore, by setting the engagement depth of the positioning block 55 and the positioning groove 45, the assembly, replacement and maintenance of the core group can be facilitated, thereby improving the convenience of use.

[0055] like Figure 1 , 2In the embodiment shown in FIG. 4 , a mold base 6 and a lifting mechanism 7 are provided below the fixed mold 2. The lifting mechanism 7 is movably provided on the mold base 6. The upper end of the lifting mechanism 7 is connected to the core group. A first stroke switch 61 and a second stroke switch 62 are provided on the mold base 6. The lifting mechanism 7 is suitable for lifting and lowering and triggering the first stroke switch 61 and the second stroke switch 62. When the lifting mechanism 7 triggers the first stroke switch 61, the core group and the fixed mold 2 are closely matched. When the lifting mechanism 7 triggers the second stroke switch 62, the first ejector block 41, the second ejector block 42 and the third ejector block 53 are separated from each other, and the minimum separation distance between the first core group 4 and the second core group 5 is not less than the width of the projection of the bending edge 31 in a plane perpendicular to the demolding direction, so that the first core group 4 and the second core group 5 can be separated and a gap of sufficient size can be generated, ensuring that the bending edge 31 part of the decorative part 3 can be removed from between the first core group 4 and the second core group 5 along the mold opening direction for demolding, thereby reducing the demolding difficulty.

[0056] In some embodiments, the lifting mechanism 7 can use a cylinder as a power source, and connect each core block through a lift plate and a lift rod.

[0057] The above describes the basic principles, main features and advantages of the present application. Technical personnel in this industry should understand that the present application is not limited to the above embodiments. The above embodiments and the specification only describe the principles of the present application. Without departing from the spirit and scope of the present application, the present application will also have various changes and improvements. These changes and improvements all 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 attached claims and their equivalents.

Claims

1. A mold for an automobile tailgate exterior panel, characterized in that: It comprises a movable mold, a fixed mold and a core group, wherein the movable mold, the fixed mold and the core group cooperate with each other to form a cavity, wherein the cavity is suitable for molding a decorative part, and the peripheral side of the decorative part has at least one bent edge that is undercut with the cavity; The core group includes a first core group, which is suitable for cooperating with each other to form the inner side surface of the bending edge. The first core group includes a first top block and a second top block, which are suitable for being tightly combined at the fixed mold. The first top block is suitable for forming the bending part of the bending edge, and the second top block is suitable for forming the part where the bending edge and the bending part meet. The lifting direction of the first top block and the second top block is inclined in a direction away from the bending edge, and the inclination angle of the lifting direction of the first top block is smaller than the inclination angle of the lifting direction of the second top block, so that the first top block and the second top block are away from each other during the lifting process.

2. The automobile tailgate exterior panel mold according to claim 1, characterized in that: The core group includes a second core group, which is suitable for cooperating to form the outer side surface of the bending edge. The second core group includes a plurality of third top blocks, and connecting blocks are arranged between the third top blocks. The connecting blocks are suitable for at least limiting the connection drop of the third top blocks in the cavity.

3. The automobile tailgate exterior panel mold according to claim 2, characterized in that: The third top block is provided with connecting blocks at least on both sides in different directions outside the cavity; the third top block forms the outer side surface on one side of the bending edge in a one-to-one correspondence, and the connecting blocks are arranged correspondingly at the bending part of the bending edge.

4. The automobile tailgate exterior panel mold according to claim 2, characterized in that: The first core group and the second core group are respectively provided with a positioning block and a positioning groove, and the positioning block and the positioning groove are suitable for being fitted with each other so that the first core group and the second core group are synchronously lifted. During the lifting process of the first core group and the second core group, the positioning block and the positioning groove are suitable for being away from each other.

5. The automobile tailgate exterior panel mold according to claim 4, characterized in that: The engagement depth of the positioning block and the positioning groove is less than the distance between the first core group and the second core group after the first core group and the second core group are lifted, so that the first core group and the second core group do not interfere with each other in the corresponding lifting direction.

6. The automobile tailgate exterior panel mold according to claim 1, characterized in that: The contact surface between the first top block and the second top block is gradually inclined from bottom to top in a direction away from the bending edge.

7. The automobile tailgate exterior panel mold according to claim 1, characterized in that: The contact surface between the first top block and the second top block is parallel to the inclination angle of the lifting direction of the first top block, or the inclination degree is greater than the inclination angle of the lifting direction of the first top block.

8. The automobile tailgate exterior panel mold according to claim 1, characterized in that: A guide portion is provided on one side of the first top block and the second top block away from the cavity, a guide groove is provided on the fixed mold, and the guide portion is suitable for sliding along the guide groove.

9. The automobile tailgate exterior panel mold according to claim 1, characterized in that: A mold base and a lifting mechanism are arranged below the fixed mold. The lifting mechanism is arranged on the mold base in a liftable manner. The upper end of the lifting mechanism is connected to the core group. A first stroke switch and a second stroke switch are arranged on the mold base. The lifting mechanism is suitable for lifting and lowering and triggering the first stroke switch and the second stroke switch. When the lifting mechanism triggers the first stroke switch, the core group and the fixed mold are closely matched. When the lifting mechanism triggers the second stroke switch, the first ejector block, the second ejector block and the third ejector block are separated from each other, and the minimum separation distance between the first core group and the second core group is not less than the width of the projection of the bending edge in the plane perpendicular to the demolding direction.

10. The automobile tailgate exterior panel mold according to claim 1, characterized in that: The surrounding side of the decorative part has a U-shaped bending edge that is inverted with the cavity, and the first top block and the second top block are spaced apart along the bending edge. The first top block corresponds to the inner side surface of the bending portion of the bending edge, and the second top block corresponds to the inner side surface on one side of the bending edge.

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