Spare tire compartment manufacturing mold and spare tire compartment manufacturing method

Abstract

The present invention provides a spare tire well manufacturing mold and a spare tire well manufacturing method, the spare tire well manufacturing mold comprises an upper mold group and a lower mold group, the lower mold group comprises a lower mold plate, a lower ejection mechanism and a bottom plate, the upper mold group comprises an upper mold plate, an upper ejection mechanism, a panel and a hole making mechanism; the lower mold plate has a convex mold, the upper mold plate has a concave mold, and the concave mold and the convex mold enclose a forming cavity; the hole making mechanism comprises a plurality of ejector rods, a push plate and a pushing mechanism for pushing the push plate after the spare tire well is formed in the cavity to drive each ejector rod to extend into the cavity to extrude and form a hole position of the spare tire well, and the upper mold plate is provided with a first upper through hole. The present invention opens a first upper through hole in the upper mold plate, and sets an ejector rod in the first upper through hole, so that when the spare tire well is formed, the ejector rod can be retracted in the concave mold, and after the spare tire well is formed in the cavity, the ejector rod can be pushed into the cavity to form a hole position on the spare tire well, so that the ejector rod can be prevented from being deformed, and there is no need to set a production boss in the concave mold, thereby improving the life of the mold.

Description

Technical Field

[0001] The present invention belongs to the field of automobiles, and more specifically, relates to a spare tire well manufacturing mold and a spare tire well manufacturing method. Background Art

[0002] A spare tire is usually placed in the trunk of a car for backup. This requires a spare tire compartment to be set up in the trunk of the car. The spare tire compartment is generally recessed in the middle to form a storage cavity for storing the spare tire, and its edge is fixed in the car. One type of spare tire compartment in the prior art uses a steel structure, which is heavy and has a high manufacturing cost. Another type uses plastic injection molding, but the fibers contained in this spare tire compartment are short and the plastic strength is poor, resulting in low overall mechanical strength. SMC (abbreviation of Sheet Molding Compound, also known as fiberglass, professional terminology is sheet molding compound) composite materials, compared to injection molded plastics, have the characteristics of high strength, high modulus and low density, and are increasingly used in the production of automotive parts. However, due to the large size of the spare tire compartment and the large height difference of the product shape, it is very easy to deform or damage during molding, especially the convex column that produces the hole in the mold. Summary of the invention

[0003] The purpose of the present invention is to provide a spare tire well manufacturing mold and a spare tire well manufacturing method, so as to solve the problem in the prior art that the convex column corresponding to the manufacturing hole portion in the mold for manufacturing the spare tire well using SMC composite material is easily deformed and damaged.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a spare tire well manufacturing mold, including an upper mold group and a lower mold group, the lower mold group includes a lower mold plate, a lower ejection mechanism for pushing the spare tire well away from the lower mold plate and a bottom plate supporting the lower mold plate, the upper mold group includes an upper mold plate, an upper ejection mechanism for pushing the spare tire well out of the upper mold plate and a panel supporting the upper mold plate; the lower mold plate has a convex mold for molding the upper surface of the spare tire well, the upper mold plate has a concave mold for molding the lower surface of the spare tire well, the concave mold covers the convex mold, and the The concave mold and the convex mold together form a cavity for forming the spare tire well, and the upper mold assembly also includes a hole-making mechanism for extruding the hole of the spare tire well after the spare tire well is formed in the cavity; the hole-making mechanism includes a plurality of push rods for extending into the cavity to form the hole of the spare tire well, a push plate supporting each of the push rods, and a pushing mechanism for pushing the push plate after the spare tire well is formed in the cavity to drive each of the push rods to extend into the cavity to extrude the hole of the spare tire well, and a first upper through hole for each of the push rods to pass through is opened in the upper mold plate.

[0005] Furthermore, the pushing mechanism includes a plurality of oil cylinders installed on the pushing plate, and each of the oil cylinders abuts against the panel.

[0006] Furthermore, a plurality of the oil cylinders are symmetrically distributed on both sides of the push plate.

[0007] Furthermore, the hole-making mechanism also includes a plurality of guide rods for guiding the movement of the push plate, each of the guide rods connects the panel and the upper template, and the push plate is provided with a guide hole for each of the guide rods to pass through.

[0008] Furthermore, the hole-making mechanism also includes a plurality of limit rods for positioning the push plate, each of the limit rods is installed on the push plate, and a first sliding hole for inserting each of the limit rods is opened on the upper template.

[0009] Furthermore, the edge of the die and the edge of the punch cooperate to form a parting surface, and the parting surface includes a knife-edge section adjacent to the edge of the cavity, a slope section extending from the lower end of the knife-edge section toward a direction away from the cavity and obliquely downward, a first straight section extending from the lower end of the slope section toward the bottom plate, a transition section extending from the first straight section toward a direction away from the cavity, and a second straight section extending from the transition section toward the bottom plate.

[0010] Furthermore, the knife edge section extends downward from the edge of the cavity and obliquely in a direction away from the cavity, and the inclination angle of the knife edge section relative to the first straight section is in the range of 1-2 degrees.

[0011] Furthermore, a sealing ring is provided on the lower template at a position corresponding to the first straight section.

[0012] Furthermore, the lower template is provided with a vacuum pumping structure for extracting gas from the cavity.

[0013] The beneficial effect of the spare tire well manufacturing mold provided by the present invention is that: compared with the prior art, the present invention opens a first upper through hole in the upper template and arranges a push rod in the first upper through hole, so that when the spare tire well is molded, the push rod can be retracted into the die, and after the spare tire well is molded in the cavity, the push rod can be pushed into the cavity to form a hole on the spare tire well, which can prevent the push rod from deformation and does not require a manufacturing boss to be arranged in the die, thereby improving the life of the mold.

[0014] Another object of the present invention is to provide a method for manufacturing a spare tire well, comprising the spare tire well manufacturing mold as described above, and the spare tire well manufacturing method further comprises the following steps:

[0015] Feeding: placing the SMC composite material on the male mold;

[0016] Mold closing: buckle the female mold onto the male mold and keep it for a while, then the pushing mechanism pushes each of the ejector pins into the mold cavity to extrude the molding hole, and keep it for a while again;

[0017] Opening the mold: moving the upper mold assembly away from the lower mold assembly, and making the upper ejection mechanism push against the spare tire well in the mold cavity to separate the spare tire well from the concave mold;

[0018] Demolding: the lower ejection mechanism pushes against the spare tire well to separate the spare tire well from the convex mold to obtain the spare tire well.

[0019] The spare tire well manufacturing method provided by the present invention uses the spare tire well manufacturing mold, which can not only use the SMC composite material to manufacture the spare tire well, but also can conveniently manufacture the spare tire well with holes and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic structural diagram of a mold for manufacturing a spare tire compartment provided in an embodiment of the present invention;

[0022] Figure 2 A schematic front view of the structure of a spare tire well manufacturing mold provided by an embodiment of the present invention;

[0023] Figure 3 For along Figure 2 Schematic diagram of the cross-sectional structure of the midline AA;

[0024] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part B;

[0025] Figure 5 A schematic side view of the structure of a spare tire well manufacturing mold provided by an embodiment of the present invention;

[0026] Figure 6 For along Figure 5 Schematic diagram of the cross-sectional structure of the midline CC;

[0027] Figure 7 A schematic structural diagram of an upper mold assembly in a spare tire well manufacturing mold provided by an embodiment of the present invention;

[0028] Figure 8 for Figure 7 Structural diagram of the middle and upper template;

[0029] Fig. 9 for Figure 8 A schematic diagram of the enlarged structure of the D part;

[0030] Fig.10 for Figure 8 Structural schematic diagram of the middle and upper heating structure;

[0031] Fig.11 for Figure 7 Structural diagram of the middle and upper ejection mechanism;

[0032] Fig.12 for Fig.11 An enlarged structural diagram of the middle and upper intake and exhaust valves;

[0033] Fig.13 for Figure 7 A schematic diagram of the structure of the hole making mechanism in the upper die assembly;

[0034] Fig.14 A schematic structural diagram of a lower module in a spare tire well manufacturing mold provided by an embodiment of the present invention;

[0035] Fig.15 for Fig.14 A schematic diagram of the enlarged structure of part E in the middle;

[0036] Fig.16 for Fig.14 Structural schematic diagram of the middle and lower heating structure of the middle and lower template;

[0037] Fig.17 for Fig.14 A schematic diagram of the structure of the vacuum pumping structure in the middle and lower templates;

[0038] Fig.18 for Fig.14 Structural diagram of the middle and lower ejection mechanism;

[0039] Fig.19 for Fig.18 An enlarged structural diagram of the middle and lower intake and exhaust mechanism;

[0040] Fig. 20 for Fig.19 Schematic diagram of the enlarged structure of the middle and lower intake and exhaust valves.

[0041] Among them, the main marks of the drawings in the figure are:

[0042] 100- Spare tire compartment production mold;

[0043] 101-cavity; 102-parting surface; 103-knife edge section; 104-bevel section; 105-first straight section; 106-transition section; 107-second straight section;

[0044] 10-upper mold assembly; 11-panel; 12-upper support block;

[0045] 20-upper template; 21-die; 221-upper blade surface; 222-upper inclined surface; 223-first upper straight surface; 224-upper transition surface; 225-second upper straight surface; 226-upper step surface;

[0046] 23-upper heating structure; 231-upper transverse flow channel; 232-upper longitudinal flow channel; 233-upper vertical flow channel; 234-oblique flow channel; 235-upper oil inlet nozzle; 236-upper oil outlet nozzle;

[0047] 24-upper insulation structure; 241-upper insulation board; 242-top insulation board;

[0048] 251 - first upper through hole; 252 - accommodating cavity; 253 - upper exhaust duct;

[0049] 31-upper ejection mechanism; 311-upper ejector pin; 312-upper positioning plate; 313-upper fixing plate; 314-upper ejection mechanism; 315-guide rod; 316-sliding rod; 321-first sliding hole; 322-second sliding hole; 323-second sliding hole;

[0050] 34-upper exhaust structure; 341-upper air pipe; 35-upper air valve; 351-upper tube body; 3511-upper exhaust port; 352-upper valve core; 353-upper valve body;

[0051] 40-hole making mechanism; 41-thrust rod; 42-push plate; 421-extension platform; 43-pushing mechanism; 44-guide rod; 45-limiting rod;

[0052] 50-lower die set; 51-bottom plate; 52-lower support block; 53-guide rod; 54-positioning rod;

[0053] 60-lower template; 61-convex mold; 621-lower blade surface; 622-lower inclined surface; 623-first lower straight surface; 624-lower transition surface; 625-second lower straight surface; 626-lower step surface; 631-sealing ring; 632-wear-resistant block; 633-pressure bearing block; 634-lower through hole; 635-accommodation hole; 636-accommodation chamber; 637-lower exhaust duct;

[0054] 64-lower heating structure; 641-lower transverse flow channel; 642-lower longitudinal flow channel; 643-lower vertical flow channel; 644-lower oil inlet nozzle; 645-lower oil outlet nozzle;

[0055] 65-vacuum extraction structure; 651-main airway; 652-bronchial airway; 653-air nozzle; 654-air plate;

[0056] 66-lower insulation structure; 661-lower insulation board; 662-bottom insulation board;

[0057] 71-lower ejection mechanism; 711-lower ejector pin; 712-lower positioning plate; 713-lower fixing plate; 714-lower ejection mechanism;

[0058] 75-lower exhaust structure; 751-lower air pipe; 752-gas collecting block; 76-lower air valve; 761-lower pipe body; 7611-lower exhaust port; 762-lower valve core; 763-lower valve body;

[0059] 80-inflatable structure; 81-blowing plug; 82-controller. DETAILED DESCRIPTION

[0060] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0061] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0062] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.

[0063] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0064] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] Please also read Figures 1 to 6 , the spare tire well manufacturing mold 100 provided by the present invention is now described. The spare tire well manufacturing mold 100 includes an upper mold assembly 10 and a lower mold assembly 50, wherein the lower mold assembly 50 includes a lower template 60, a lower ejection mechanism 71 and a bottom plate 51, wherein the lower template 60 has a convex mold 61, and the convex mold 61 is used to shape the upper surface of the spare tire well; the lower template 60 is supported on the bottom plate 51, and the lower ejection mechanism 71 is used to push the spare tire well away from the lower template 60, that is, after the spare tire well is manufactured, the spare tire well is separated from the lower template 60 by the lower ejection mechanism 71; the upper mold assembly 10 includes an upper template 20, an upper ejection mechanism 31, a panel 11 and a hole making mechanism 40, wherein the upper template 20 has a concave mold 21, and the concave mold 21 is used to shape the spare tire well The lower surface; the upper template 20 is supported on the panel 11, and the upper ejection mechanism 31 is used to push the spare tire well out of the upper template 20, that is, after the spare tire well is made, the spare tire well is ejected out of the die 21 by the upper ejection mechanism 31; when in use, the upper mold assembly 10 cooperates with the lower mold assembly 50, and the die 21 of the upper template 20 is buckled on the convex mold 61 on the lower template 60, so that the die 21 and the convex mold 61 enclose the molding cavity 101 for molding the spare tire well; and after the spare tire well is molded in the mold cavity 101, the hole making mechanism 40 extrude the molding hole position on the spare tire well, that is, the hole making mechanism 40 is used to extrude the hole position of the spare tire well after the spare tire well is molded in the mold cavity 101.

[0066] Please also read Fig.13The hole-making mechanism 40 includes a plurality of push rods 41, a push plate 42 and a push mechanism 43. The push rods 41 are used to extend into the mold cavity 101 to form the hole position of the spare tire well. The push mechanism 43 is used to push the push plate 42 after the spare tire well is formed in the mold cavity 101, so as to drive each push rod 41 to extend into the mold cavity 101 to extrude and form the hole position of the spare tire well. The upper mold plate 20 is provided with a plurality of first upper through holes 251, and the plurality of first upper through holes 251 are located at the positions corresponding to the positions in the mold cavity 101 for forming the spare tire well. The positions of the holes correspond to the positions of the holes, and each first upper through hole 251 is inserted with a push rod 41, and each push rod 41 is installed on a push plate 42, and each push rod 41 is supported by the push plate 42, and the pushing mechanism 43 is used to push the push plate 42 to drive each push rod 41 to extend into the cavity 101; thus, after the spare tire well is formed in the cavity 101, the pushing mechanism 43 pushes the push plate 42 to drive each push rod 41 to extend into the cavity 101, and a hole is extruded on the spare tire well in the cavity 101.

[0067] Compared with the prior art, the spare tire well manufacturing mold 100 provided by the present invention has a first upper through hole 251 opened in the upper template 20 and a push rod 41 arranged in the first upper through hole 251, so that when the spare tire well is molded, the push rod 41 can be received in the die 21. After the spare tire well is molded in the cavity 101, the push rod 41 can be pushed into the cavity 101 to form a hole on the spare tire well, which can prevent the push rod 41 from deformation and does not require a manufacturing boss to be arranged in the die 21, thereby improving the life of the mold.

[0068] For further information, see Figure 3 , Figure 5 and Fig.13 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the pushing mechanism 43 includes a plurality of oil cylinders, each of which is installed on a push plate 42, and each of the oil cylinders abuts against the panel 11, so that the push plate 42 is pushed to move by the oil cylinder against the panel 11, thereby driving each push rod 41 to be driven into the cavity 101.

[0069] For further information, see Figure 3 , Figure 5 and Fig.13 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, a plurality of oil cylinders are symmetrically distributed on both sides of the push plate 42. The oil cylinders are symmetrically distributed on both sides of the push plate 42, and when the oil cylinders move the push plate 42, the force on both sides of the push plate 42 can be more evenly applied, so that the push plate 42 moves more smoothly.

[0070] For further information, see Figure 3 , Figure 5 and Fig.13As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the hole-making mechanism 40 further includes a plurality of guide rods 44, each of which connects the panel 11 and the upper template 20, and a guide hole (not shown in the figure) for each guide rod 44 to pass through is opened on the push plate 42, so that when the push plate 42 moves, the push plate 42 can be guided to move smoothly by each guide rod 44. Furthermore, there are four guide rods 44, which are respectively located at the four corners of the push plate 42, so as to guide and position the push plate 42.

[0071] For further information, see Figure 3 , Figure 5 and Fig.13 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the hole-making mechanism 40 also includes a plurality of limit rods 45, each of which is installed on the push plate 42, and the upper template 20 is provided with a first sliding hole (not marked in the figure) for each limit rod 45 to slide into, so that during assembly, the push plate 42 can be conveniently positioned by the limit rod 45, and then each push rod 41 can be positioned.

[0072] Furthermore, the length of each limiting rod 45 is smaller than the length of each ejector rod 41 , so that each limiting rod 45 will not extend into the cavity 101 , that is, each first sliding hole on the upper mold plate 20 is a blind hole structure.

[0073] For further information, see Fig.13 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, extension platforms 421 are protruded from both sides of the push plate 42, and each cylinder is installed on the corresponding extension platform 421 to facilitate the installation of the cylinder.

[0074] For further information, see Figure 3 , Figure 4 and Figure 6As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the edge of the concave mold 21 cooperates with the edge of the convex mold 61 to form a parting surface 102, and the parting surface 102 includes a knife edge section 103, a slope section 104, a first straight section 105, a transition section 106 and a second straight section 107; the knife edge section 103 is adjacent to the edge of the cavity 101 so as to form the edge of the cavity 101; the slope section 104 extends from the lower end of the knife edge section 103 toward a direction away from the cavity 101 and obliquely downward to facilitate mold closing; the first straight section 105 is adjacent to the edge of the cavity 101 so as to form the edge of the cavity 101; the slope section 104 extends from the lower end of the knife edge section 103 toward a direction away from the cavity 101 and obliquely downward to facilitate mold closing; 05 extends from the lower end of the inclined surface section 104 toward the bottom plate 51 so as to position the punch 61 and the die 21; the transition section 106 extends from the first straight section 105 toward a direction away from the cavity 101. The provision of the transition section 106 can facilitate mold closing and also facilitate the transition between the first straight section 105 and the second straight section 107; the second straight section 107 extends from the transition section 106 toward the bottom plate 51 so as to better play a role in positioning and guiding during mold closing to avoid damage to the knife edge section 103 and the first straight section 105.

[0075] For further information, see Figure 3 , Figure 8 , Fig. 9 , Fig.14 and Fig.15 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the upper template 20 has an upper blade surface 221, an upper inclined surface 222, a first upper straight surface 223, an upper transition surface 224 and a second upper straight surface 225 in sequence from the edge of the concave mold 21 to the bottom surface of the upper template 20; the lower template 60 has a lower blade surface 621, a lower inclined surface 622, a first lower straight surface 623, a lower transition surface 624 and a second lower straight surface 625 in sequence from the edge of the convex mold 61 to the bottom surface of the lower template 60; when the upper template 20 and the lower template When the mold 60 is closed, the upper blade surface 221 cooperates with the lower blade surface 621 to form the blade section 103 of the parting surface 102; the upper inclined surface 222 cooperates with the lower inclined surface 622 to form the inclined surface section 104 of the parting surface 102; the first upper straight surface 223 cooperates with the first lower straight surface 623 to form the first straight section 105 of the parting surface 102; the upper transition surface 224 cooperates with the lower transition surface 624 to form the transition section 106 of the parting surface 102; the second upper straight surface 225 cooperates with the second lower straight surface 625 to form the second straight section 107 of the parting surface 102.

[0076] For further information, see Figure 3 , Figure 4 and Figure 6 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the first straight section 105 and the second straight section 107 are both perpendicular to the panel 11 to facilitate better mold closing.

[0077] For further information, see Figure 3 , Figure 4 and Figure 6 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the blade section 103 extends downward from the edge of the cavity 101 and tilts away from the cavity 101, and the blade section 103 has an inclination angle range of 1-2 degrees relative to the first straight section 105. The blade section 103 is tilted and the inclination angle range of the blade section 103 is 1-2 degrees, which is not only convenient for reducing flash during manufacturing, but also convenient for mold closing and mold opening. Preferably, the inclination angle range of the blade section 103 is 1.5 degrees.

[0078] For further information, see Figure 4 and Fig.15 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, a sealing ring 631 is provided on the lower template 60 at a position corresponding to the first straight section 105. The sealing ring 631 is provided on the lower template 60 so that the first straight section 105 forms a sealing surface for easy sealing. Furthermore, there are at least two sealing rings 631 to improve the sealing performance.

[0079] For further information, see Figure 3 , Figure 4 and Figure 6 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the length of the second straight section 107 is greater than the length of the first straight section 105, so as to better assist in mold closing and avoid damage to the blade section 103 and the first straight section 105.

[0080] For further information, see Figure 4 , Fig.14 and Fig.15 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, a plurality of wear-resistant blocks 632 are provided on the second lower straight surface 625 of the lower mold plate 60 to increase the service life and better assist mold closing to avoid damage to the blade section 103 and the first straight section 105. Furthermore, a mounting groove (not shown in the figure) is provided on the second lower straight section, and the wear-resistant block 632 is installed in the corresponding mounting groove to accommodate the wear-resistant block 632.

[0081] For further information, see Figure 1 , Figure 3 , Figure 6 and Fig.17 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, a vacuum structure 65 for extracting gas from the mold cavity 101 is provided in the lower mold plate 60. The vacuum structure 65 can be provided to vacuum the mold cavity 101 when the mold is closed, so as to facilitate the flow of the molding material in the mold cavity 101 and further facilitate the molding of the spare tire well.

[0082] For further information, see Figure 1 , Figure 3 , Figure 6 and Fig.17 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the vacuum structure 65 includes a main air channel 651 provided in the lower mold plate 60, a plurality of branch air channels 652 extending from the main air channel 651 to the edge of the male mold 61, and a gas nozzle 653 connected to the main air channel 651. The gas nozzle 653 is used to be connected to an external gas extraction device to extract gas in the cavity 101.

[0083] For further information, see Figure 4 , Figure 8 , Fig.14 and Fig.15 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, an upper step surface 226 is provided between the upper inclined surface 222 and the first upper straight surface 223 in the upper template 20; correspondingly, a lower step surface 626 is provided between the lower inclined surface 622 and the first lower straight surface 623 in the lower template 60, and the upper step surface 226 matches the lower step surface 626.

[0084] For further information, see Figure 4 , Figure 8 , Fig.14 and Fig.15 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, a plurality of pressure blocks 633 are provided around the punch 61 on the lower template 60. When the upper template 20 is buckled on the lower template 60, the bottom surface of the upper template 20 is supported on the pressure blocks 633 so as to support the upper template 20.

[0085] For further information, see Figure 3 , Figure 6 , Fig.15 and Fig.17 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, each branch airway 652 extends to the lower step surface 626 to extract the gas in the cavity 101 and facilitate the layout of the branch airway 652 outlet.

[0086] For further information, see Figure 3 , Figure 6 , Fig.15 and Fig.17 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, a plurality of air plates 654 are installed on the lower step surface 626, and a plurality of air holes are opened on the air plates 654. Each branch air channel 652 is connected to at least one air plate 654. The air plates 654 are provided to better extract the gas in the cavity 101 and facilitate exhaust.

[0087] For further information, see Figure 3 , Figure 8 , Fig.10 and Fig.16 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, an upper heating structure 23 is provided in the upper template 20. The upper heating structure 23 is used to heat the upper template 20 so that the material for manufacturing the spare tire well in the cavity 101 melts and flows, which is convenient for molding.

[0088] Similarly, a lower heating structure 64 is provided in the lower template 60, and the lower heating structure 64 is used to heat the lower template 60 so that the material for making the spare tire well in the cavity 101 can flow and facilitate molding.

[0089] For further information, see Figure 3 , Figure 8 and Fig.10 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the upper heating structure 23 includes a plurality of upper transverse flow channels 231 for heating oil to pass through and a plurality of upper longitudinal flow channels 232 for heating oil to circulate, each upper transverse flow channel 231 is opened in the upper template 20 along the length direction of the upper template 20, each upper longitudinal flow channel 232 is opened in the upper template 20 along the width direction of the upper template 20, each upper longitudinal flow channel 232 is connected to at least one upper transverse flow channel 231, and a plurality of transverse flow channels and a plurality of longitudinal flow channels surround the surface of the die 21 so as to heat the die 21 faster.

[0090] For further information, see Figure 3 , Figure 8 and Fig.10 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the upper heating structure 23 also includes an upper oil inlet nozzle 235 and an upper oil outlet nozzle 236. The upper oil inlet nozzle 235 is connected to the upper transverse flow channel 231, and the upper oil outlet nozzle 236 is connected to the upper transverse flow channel 231. The upper oil inlet nozzle 235 and the upper oil outlet nozzle 236 are respectively connected to different upper transverse flow channels 231. The upper oil inlet nozzle 235 and the upper oil outlet nozzle 236 are both installed on the upper template 20 to facilitate the connection of external hot oil equipment.

[0091] For further information, see Figure 3 , Figure 8 and Fig.10 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, among the several upper transverse flow channels 231 located in the middle area of ​​the upper template 20, at least two upper transverse flow channels 231 are connected with upper oil inlet nozzles 235, and the upper oil outlet nozzles 236 are connected to the upper transverse flow channels 231 corresponding to the edge area of ​​the upper template 20.

[0092] For further information, see Figure 3 , Figure 8 and Fig.10 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the upper heating structure 23 also includes a plurality of upper vertical flow channels 233, each of which is connected to at least one upper transverse flow channel 231, and each of the upper vertical flow channels 233 is opened in the upper template 20 along the thickness direction of the upper template 20, so as to heat the concave mold 21 faster and improve the heating efficiency.

[0093] For further information, see Figure 3 , Figure 8 and Fig.10 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the upper heating structure 23 also includes a plurality of inclined flow channels 234, each of which is located on the side of the die 21, and each of which is connected to at least one upper vertical flow channel 233, so as to heat the die 21 faster and more evenly.

[0094] For further information, see Figure 3 and Fig.16 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the lower heating structure 64 includes a plurality of lower transverse flow channels 641 for heating oil to pass through and a plurality of lower longitudinal flow channels 642 for heating oil to circulate, each lower transverse flow channel 641 is opened in the lower template 60 along the length direction of the lower template 60, each lower longitudinal flow channel 642 is opened in the lower template 60 along the width direction of the lower template 60, each lower longitudinal flow channel 642 is connected to at least one lower transverse flow channel 641, and a plurality of transverse flow channels and a plurality of longitudinal flow channels surround the surface of the punch 61 so as to heat the punch 61 faster.

[0095] For further information, see Figure 3 and Fig.16 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the lower heating structure 64 also includes a lower oil inlet nozzle 644 and a lower oil outlet nozzle 645. The lower oil inlet nozzle 644 is connected to the lower transverse flow channel 641, and the lower oil outlet nozzle 645 is connected to the lower transverse flow channel 641. The lower oil inlet nozzle 644 and the lower oil outlet nozzle 645 are respectively connected to different lower transverse flow channels 641. The lower oil inlet nozzle 644 and the lower oil outlet nozzle 645 are both installed on the lower template 60 to facilitate the connection of external hot oil equipment.

[0096] For further information, see Figure 3 and Fig.16 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, among the several lower transverse flow channels 641 located in the middle area of ​​the lower template 60, at least two lower transverse flow channels 641 are connected with lower oil inlet nozzles 644, and the lower oil outlet nozzles 645 are connected to the lower transverse flow channels 641 corresponding to the edge area of ​​the lower template 60.

[0097] For further information, see Figure 3 and Fig.16 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the lower heating structure 64 also includes a plurality of lower vertical flow channels 643, each of which is connected to at least one lower transverse flow channel 641, and each of the lower vertical flow channels 643 is opened in the lower template 60 along the thickness direction of the lower template 60, so as to heat the punch 61 faster and improve the heating efficiency.

[0098] For further information, see Figure 1 , Figure 2 , Figure 5 and Figure 7 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, an upper heat-insulating structure 24 is provided on the upper template 20, and the upper heat-insulating structure 24 includes a plurality of upper heat-insulating boards 241 installed on the peripheral side of the upper template 20. After the upper heating structure 23 heats the upper template 20, the upper template 20 can be kept warm to prevent heat loss.

[0099] For further information, see Figure 3 , Figure 5 and Figure 6 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the upper insulation structure 24 also includes a plurality of top insulation boards 242 installed on the top surface of the upper template 20 to better prevent heat loss.

[0100] For further information, see Figure 1 , Figure 2 , Figure 5 and Fig.14 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, a lower heat preservation structure 66 is provided on the lower template 60, and the lower heat preservation structure 66 includes a plurality of lower heat insulation boards 661 installed on the peripheral side of the lower template 60. After the lower heating structure 64 heats the lower template 60, the lower template 60 can be kept warm to prevent heat loss.

[0101] For further information, see Figure 3 , Figure 5 and Figure 6 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the lower insulation structure 66 also includes a plurality of bottom insulation boards 662 installed on the bottom surface of the lower template 60 to better prevent heat loss.

[0102] For further information, see Figure 2 , Figure 3 and Fig.11As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the upper ejection mechanism 31 includes a plurality of upper ejector pins 311 inserted into the upper mold plate 20, an upper positioning plate 312 for positioning each upper ejector pin 311, an upper fixing plate 313 for fixing each upper ejector pin 311 in cooperation with the upper positioning plate 312, and an upper ejection mechanism 314 for pushing the upper fixing plate 313 to move, and the upper ejection mechanism 314 is installed on the upper fixing plate 313; a plurality of second upper through holes (not shown in the figure) are provided in the upper mold plate 20, and each upper ejector pin 311 is slidably inserted into the corresponding second upper through hole. Therefore, when the mold is opened, the upper ejection mechanism 314 pushes the upper fixing plate 313 to move, thereby driving each upper ejector pin 311 to move, and ejecting the spare tire well from the concave mold 21.

[0103] For further information, see Figure 2 , Figure 3 and Fig.11 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the upper positioning plate 312 and the upper fixing plate 313 are arranged between the push plate 42 and the upper template 20, and the upper positioning plate 312 and the upper fixing plate 313 are respectively provided with first sliding holes 321 for the corresponding push rods 41 to pass through. The upper positioning plate 312 and the upper fixing plate 313 are respectively provided with second sliding holes 322 for the corresponding limit rods 45 to pass through. The upper positioning plate 312 and the upper fixing plate 313 are respectively provided with second sliding holes 323 for the corresponding guide rods 44 to pass through.

[0104] For further information, see Figure 2 , Figure 3 and Fig.11 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the upper pushing mechanism 314 includes a plurality of upper hydraulic cylinders, each of which is installed on the upper fixed plate 313, and each of the upper hydraulic cylinders abuts against the panel 11, so that the upper fixed plate 313 is pushed to move by the upper hydraulic cylinders abutting against the panel 11.

[0105] For further information, see Figure 2 , Figure 3 and Fig.11 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the upper mold assembly 10 also includes a plurality of guide rods 315 for guiding the movement of the upper positioning plate 312 and the upper fixing plate 313, each guide rod 315 is installed on the panel 11, and a third sliding hole (not shown in the figure) for inserting each guide rod 315 is opened in the upper mold plate 20, so as to facilitate the positioning of the upper mold plate during assembly, and the upper positioning plate 312 and the upper fixing plate 313 are correspondingly opened with a third sliding hole (not marked in the figure) for the guide rod 315 to pass through.

[0106] For further information, see Figure 2 , Figure 3 and Fig.11 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the upper mold assembly 10 also includes a plurality of slide bars 316 for positioning the upper positioning plate 312 and the upper fixing plate 313 for movement, each slide bar 316 connects the panel 11 and the upper mold plate 20 so as to position the upper positioning plate 312 and the upper fixing plate 313 during assembly; and the upper positioning plate 312 and the upper fixing plate 313 are correspondingly provided with a fourth slide hole (not shown in the figure) for the slide bar 316 to pass through.

[0107] For further information, see Figure 5 , Figure 6 and Fig.18 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the lower ejection mechanism 71 includes a plurality of lower ejector pins 711 inserted into the lower mold plate 60, a lower positioning plate 712 for positioning each lower ejector pin 711, a lower fixing plate 713 for fixing each lower ejector pin 711 in cooperation with the lower positioning plate 712, and a lower ejection mechanism 714 for pushing the lower fixing plate 713 to move, and the lower ejection mechanism 714 is installed on the lower fixing plate 713; a plurality of lower through holes 634 are opened in the lower mold plate 60, and each lower ejector pin 711 is slidably inserted into the corresponding lower through hole 634. Therefore, when the mold is opened, the lower ejection mechanism 714 pushes the lower fixing plate 713 to move, thereby driving each lower ejector pin 711 to move, and ejecting the spare tire well from the convex mold 61.

[0108] For further information, see Figure 5 , Figure 6 and Fig.18 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the lower push-up mechanism 714 includes a plurality of lower hydraulic cylinders, each of which is installed on the lower fixed plate 713, and each of the lower hydraulic cylinders abuts against the bottom plate 51, so that the lower fixed plate 713 is pushed to move by the lower hydraulic cylinders abutting against the bottom plate 51.

[0109] For further information, see Figure 5 , Figure 6 and Fig.18 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the lower mold assembly 50 also includes a plurality of guide rods 53, each guide rod 53 is installed on the bottom plate 51, and the lower template 60 is provided with openings (not marked in the figure) for each guide rod 53 to pass through, and the lower positioning plate 712 and the lower fixing plate 713 are correspondingly provided with first sliding holes (not marked in the figure) for the guide rods 53 to pass through, so that the lower positioning plate 712 and the lower fixing plate 713 can be guided to move by each guide rod 53, and at the same time, it is convenient to position the lower positioning plate 712, the lower fixing plate 713 and the lower template 60 during assembly.

[0110] For further information, see Figure 5, Figure 6 and Fig.18 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the lower mold assembly 50 also includes a plurality of positioning rods 54, each positioning rod 54 connecting the bottom plate 51 and the lower mold plate 60, and the lower positioning plate 712 and the lower fixed plate 713 are correspondingly provided with second sliding holes (not marked in the figure) for the positioning rods 54 to pass through, so as to guide the movement of the lower positioning plate 712 and the lower fixed plate 713 through each positioning rod 54.

[0111] For further information, see Figure 2 , Figure 3 and Fig.11 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the upper mold assembly 10 also includes an upper exhaust structure 34 for exhausting the gas in the cavity 101, and the upper exhaust structure 34 includes an upper air valve 35 and an upper air pipe 341 for controlling the switch of the upper air valve 35. The upper mold plate 20 is provided with a receiving cavity 252 for accommodating the upper air valve 35, and the upper air valve 35 is connected to the cavity 101, so that when the spare tire well is formed, the exhaust gas can be better discharged, so as to form the spare tire well.

[0112] For further information, see Figure 3 , Fig.11 and Fig.12 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the upper air valve 35 includes an upper tube body 351, an upper valve core 352 inserted into the upper tube body 351, and an upper valve body 353 driving the upper valve core 352 to move in the upper tube body 351. The upper tube body 351 is connected to the upper valve body 353, and an upper exhaust port 3511 is provided on the side of the upper tube body 351. The upper mold plate 20 is provided with an upper exhaust passage 253 connected to the upper exhaust port 3511. Therefore, by controlling the movement of the upper valve core 352 in the upper tube body 351, the connection or disconnection between the upper exhaust port 3511 and the cavity 101 is controlled, thereby controlling the exhaust.

[0113] For further information, see Figure 6 , Figures 18 to 20 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the lower mold assembly 50 also includes a lower exhaust structure 75 for exhausting the gas in the cavity 101, and the lower exhaust structure 75 includes a lower air valve 76 and a lower air pipe 751 for controlling the switch of the lower air valve 76. The lower mold plate 60 is provided with a receiving chamber 636 for accommodating the lower air valve 76, and the lower air valve 76 is connected to the cavity 101, so that when the spare tire well is formed, the exhaust gas can be better discharged, so as to form the spare tire well.

[0114] For further information, see Figure 6 , Figures 18 to 20As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the lower air valve 76 includes a lower tube body 761, a lower valve core 762 inserted into the lower tube body 761, and a lower valve body 763 driving the lower valve core 762 to move in the lower tube body 761. The lower tube body 761 is connected to the lower valve body 763, and a lower exhaust port 7611 is provided on the side of the lower tube body 761. The lower template 60 is provided with a lower exhaust channel 637 connected to the lower exhaust port 7611. Therefore, by controlling the movement of the lower valve core 762 in the lower tube body 761, the connection or disconnection of the lower exhaust port 7611 and the cavity 101 is controlled, thereby controlling the exhaust.

[0115] For further information, see Figure 6 , Figures 18 to 20 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, there are at least two lower air valves 76 for better exhaust. Furthermore, the lower exhaust structure 75 also includes an air collecting block 752, and each lower air valve 76 is connected to the air collecting block 752 through a lower air pipe 751 to better control the opening and closing of each lower air valve 76.

[0116] For further information, see Figure 6 and Fig.14 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the lower mold assembly 50 also includes an inflation structure 80 for filling gas between the surface of the punch 61 and the spare tire well. The inflation structure 80 includes a blow plug 81 installed in the lower mold plate 60 and a controller 82 connected to the blow plug 81. A receiving hole 635 for accommodating the blow plug 81 is provided in the lower mold plate 60. The controller 82 is connected to an external air pump so that when the mold is opened, gas can be filled between the punch 61 and the spare tire well to assist in demolding.

[0117] For further information, see Figures 1 to 6 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the upper mold assembly 10 also includes an upper support block 12, which is arranged between the panel 11 and the upper template 20 so as to support the upper template 20 on the panel 11 through the upper support block 12.

[0118] For further information, see Figures 1 to 6 As a specific embodiment of the spare tire well manufacturing mold 100 provided by the present invention, the lower mold assembly 50 also includes a lower support block 52, and the lower support block 52 is arranged between the bottom plate 51 and the lower template 60 so as to support the lower template 60 on the bottom plate 51 through the lower support block 52.

[0119] The present invention also provides a method for making a spare tire compartment. Figures 1 to 20 The spare tire well uses the spare tire well manufacturing mold 100. The spare tire well manufacturing method comprises the following steps:

[0120] Feeding: placing SMC composite material on the punch 61;

[0121] Mold closing: The female mold 21 is buckled onto the male mold 61 and held for a period of time, and then the pushing mechanism 43 pushes each push rod 41 into the mold cavity 101 to extrude the forming hole position, and then held for a period of time again;

[0122] Opening the mold: moving the upper mold assembly 10 away from the lower mold assembly 50, and making the upper ejection mechanism 31 push against the spare tire well in the cavity 101, so as to separate the spare tire well from the concave mold 21;

[0123] Demolding: The lower ejection mechanism 71 pushes against the spare tire well to separate the spare tire well from the punch 61, thereby obtaining the spare tire well.

[0124] Through the feeding step, the SMC composite material is rotated on the punch 61 so that after the mold is closed, the cavity 101 has the SMC composite material, and after the spare tire well is formed in the forming process, the hole making mechanism 40 makes a hole position on the spare tire well, and then the mold is opened. The spare tire well manufacturing method is simple, the spare tire well can be made of the SMC composite material, and the service life is long.

[0125] For further information, see Figure 3 , Fig.10 and Fig.16 As a specific embodiment of the spare tire well manufacturing method provided by the present invention, after the feeding step, a heating step is also included: hot oil is respectively introduced into the upper heating structure 23 and the lower heating structure 64 to heat the upper template 20 and the lower template 60 respectively; so as to facilitate the flow of the SMC composite material after the mold is closed.

[0126] For further information, see Figure 3 , Figure 6 , Fig.14 and Fig.17 As a specific embodiment of the spare tire compartment manufacturing method provided by the present invention, when the mold is closed, it also includes a vacuuming step: the vacuuming structure 65 is connected to an external air pump to evacuate air; thereby, when the mold is closed, a negative pressure is formed in the cavity 101, which facilitates the flow of the SMC composite material and forms the spare tire compartment.

[0127] For further information, see Figure 3 , Figure 6 , Fig.14 and Fig.17As a specific embodiment of the spare tire well manufacturing method provided by the present invention, the mold closing step also includes: when the concave mold 21 is buckled on the convex mold 61, and after the mold is closed, the pressure is maintained for 18-25 seconds to make the product overflow, and the vacuum structure 65 is closed to better form the spare tire well. Preferably, when the pressure holding time is 20 seconds, the vacuum structure 65 is closed. Specifically, the vacuum structure 65 can be closed when the knife edge section 103 around the cavity 101 overflows 0.08-0.15mm.

[0128] For further information, see Figure 3 , Figure 6 and Fig.13 As a specific embodiment of the spare tire well manufacturing method provided by the present invention, the mold closing step further includes: after the mold is closed, the pushing mechanism 43 of the hole making mechanism 40 pushes each push rod 41 into the mold cavity 101 when the pressure is maintained for 75-85 seconds to make the hole position on the spare tire well. Preferably, when the pressure is maintained for 80 seconds, the pushing mechanism 43 pushes each push rod 41 into the mold cavity 101.

[0129] For further information, see Figure 3 , Figure 6 and Fig.11 As a specific embodiment of the spare tire well manufacturing method provided by the present invention, the mold closing step further includes: after the mold is closed, when the pressure is maintained for 90-100 seconds, the upper exhaust structure 34 is opened, and air is inflated into the mold cavity 101 through the upper exhaust structure 34. Preferably, when the pressure is maintained for 95 seconds, the upper exhaust structure 34 is opened, and air is inflated into the mold cavity 101 through the upper exhaust structure 34.

[0130] For further information, see Figure 3 , Figure 6 and Fig.11 As a specific implementation of the spare tire well manufacturing method provided by the present invention, after the mold is closed and the pressure is maintained for 100-110s, the mold is opened, and the lower ejection mechanism 71 ejects the spare tire well out of the die 21, and the upper mold assembly 10 is separated from the lower mold assembly 50.

[0131] For further information, see Figure 3 , Figure 6 and Fig.11 As a specific embodiment of the spare tire well manufacturing method provided by the present invention, during the mold opening process, the inflatable structure 80 is opened to inflate air between the convex mold 61 and the spare tire well, and the lower ejection mechanism 71 pushes against the spare tire well to separate the spare tire well from the convex mold 61. After the spare tire well is separated from the convex mold 61, the inflatable structure 80 is closed.

[0132] For further information, see Figure 3 , Figure 6 and Fig.14As a specific implementation of the spare tire well manufacturing method provided by the present invention, before the feeding step, it includes: cutting and weighing the SMC composite material to better control the amount of the SMC composite material and ensure good molding of the spare tire well.

[0133] A specific implementation of the spare tire compartment manufacturing mold 100 of the present invention is to use a 1200T press to produce the spare tire compartment of an automobile, and adopt SMC composite material; the spare tire compartment is large and the ribs are deep; the product is light in weight and the production cycle is short.

[0134] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A spare tire compartment mold, comprising an upper mold assembly and a lower mold assembly, characterized in that: The lower mold assembly includes a lower mold plate, a lower ejection mechanism for pushing the spare tire well away from the lower mold plate, and a bottom plate supporting the lower mold plate, and the upper mold assembly includes an upper mold plate, an upper ejection mechanism for pushing the spare tire well out of the upper mold plate, and a panel supporting the upper mold plate; the lower mold plate has a convex mold for molding the upper surface of the spare tire well, and the upper mold plate has a concave mold for molding the lower surface of the spare tire well, the concave mold covers the convex mold, and the concave mold and the convex mold together form a cavity for molding the spare tire well, and the upper mold assembly also includes a hole-making mechanism for extruding a hole for the spare tire well after molding the spare tire well in the cavity; the hole-making mechanism includes a hole-making mechanism for extending into the cavity to mold the A plurality of push rods for forming the hole of the spare tire well, a push plate supporting each of the push rods, and a pushing mechanism for pushing the push plate after the spare tire well is formed in the cavity so as to drive each of the push rods to extend into the cavity to extrude and form the hole of the spare tire well, wherein a first upper through hole is provided in the upper template for each of the push rods to pass through; the hole-making mechanism also includes a plurality of guide rods for guiding the movement of the push plate, each of the guide rods connects the panel and the upper template, and a guide hole is provided on the push plate for each of the guide rods to pass through; the hole-making mechanism also includes a plurality of limit rods for positioning the push plate, each of the limit rods is installed on the push plate, and a first sliding hole is provided on the upper template for each of the limit rods to be inserted into.

2. The spare tire well manufacturing mold according to claim 1, characterized in that: The pushing mechanism comprises a plurality of oil cylinders installed on the pushing plate, and each of the oil cylinders abuts against the panel.

3. The spare tire well manufacturing mold according to claim 2, characterized in that: A plurality of oil cylinders are symmetrically distributed on both sides of the push plate.

4. The spare tire well manufacturing mold according to any one of claims 1 to 3, characterized in that: The edge of the die and the edge of the punch cooperate to form a parting surface, and the parting surface includes a knife edge section adjacent to the edge of the cavity, an inclined surface section extending downwardly from the lower end of the knife edge section toward a direction away from the cavity, a first straight section extending from the lower end of the inclined surface section toward the bottom plate, a transition section extending from the first straight section toward a direction away from the cavity, and a second straight section extending from the transition section toward the bottom plate.

5. The spare tire well manufacturing mold according to claim 4, characterized in that: The knife edge section extends downward from the edge of the cavity and obliquely in a direction away from the cavity. The inclination angle of the knife edge section relative to the first straight section is in the range of 1-2 degrees.

6. The spare tire well manufacturing mold according to claim 4, characterized in that: A sealing ring is provided on the lower template at a position corresponding to the first straight section.

7. The spare tire well manufacturing mold according to any one of claims 1 to 3, characterized in that: The lower template is provided with a vacuum pumping structure for extracting gas from the cavity.

8. A method for manufacturing a spare tire compartment, characterized in that: The spare tire well manufacturing mold according to any one of claims 1 to 7, wherein the spare tire well manufacturing method further comprises the following steps: Feeding: placing the SMC composite material on the male mold; Mold closing: buckle the female mold onto the male mold and keep it for a while, then the pushing mechanism pushes each of the ejector pins into the mold cavity to extrude the molding hole, and keep it for a while again; Opening the mold: moving the upper mold assembly away from the lower mold assembly, and making the upper ejection mechanism push against the spare tire well in the mold cavity to separate the spare tire well from the concave mold; Demolding: the lower ejection mechanism pushes against the spare tire well to separate the spare tire well from the convex mold to obtain the spare tire well.

Images