Injection mold for automobile fuel tank cap

Abstract

The injection mold comprises a bottom mounting support, a lower mold mounting base, a lower mold body, a side support, an upper mold mounting base and an upper mold body, the lower mold mounting base is mounted on the bottom mounting support, the lower mold body is mounted on the lower mold mounting base, a lower mold cavity is formed in the lower mold body, and grouting hole channels are formed in the two sides of the lower mold cavity correspondingly; the side support is installed on one side of the bottom installation support, the upper die installation base is installed at the top end of the side support, the upper die body is installed on the upper die installation base, an upper die cavity is formed in the lower end face of the upper die body, the upper die cavity and the lower die cavity are arranged oppositely, and the driving assembly is further installed between the upper die body and the upper die installation base. And in addition, the manufactured fuel tank cap can be uniformly cooled, and the machining quality of the automobile fuel tank cap is improved.

Description

Technical Field

[0001] The present application relates to the technical field of mold manufacturing, and in particular to an injection mold for an automobile fuel tank cap. Background Art

[0002] In the existing oil pump assembly, the oil tank cap is installed on the oil tank, and the electric oil pump in the oil tank is controlled by the conductive plug to provide fuel to the generator through the oil outlet and recover excess fuel through the oil return port. The oil tank cap generally includes a body, an oil outlet pipe, an oil return pipe and a conductive plug. The conductive plug is located in the middle of the body, and the oil outlet pipe and the oil return pipe are respectively arranged on both sides of the conductive plug, and the openings of the oil outlet pipe and the oil return pipe are both facing the first side of the body, and the opening of the conductive plug is facing the second side of the body.

[0003] The fuel tank cap is generally formed by injection molding. The existing mold structure is relatively complex, and the fuel tank cap after production is of poor quality and easy to deform. Therefore, it is necessary to design an injection mold for the automobile fuel tank cap. Summary of the invention

[0004] The present application provides an injection mold for an automobile fuel tank cap to solve the problems of low mold manufacturing efficiency and poor quality in the prior art, achieves precise mold closing and mold opening, and can also evenly cool the manufactured fuel tank cap, thereby improving the processing quality of the automobile fuel tank cap.

[0005] The present application provides an injection mold for an automobile fuel tank cap, comprising a bottom mounting bracket, a lower mold mounting seat, a lower mold body, a side bracket, an upper mold mounting seat and an upper mold body;

[0006] The lower mold mounting seat is mounted on the base mounting bracket, the lower mold body is mounted on the lower mold mounting seat, a lower mold cavity is provided on the lower mold body, and grouting channels are respectively provided on both sides of the lower mold cavity;

[0007] The side bracket is installed on one side of the bottom mounting bracket;

[0008] The upper die mounting seat is mounted on the top of the side bracket, and the upper die body is mounted on the upper die mounting seat;

[0009] The lower end surface of the upper mold body is provided with an upper mold cavity, and the upper mold cavity is arranged opposite to the lower mold cavity;

[0010] A driving assembly is also installed between the upper die body and the upper die mounting seat.

[0011] Preferably, the present application provides an injection mold for an automobile fuel tank cap, wherein the driving assembly includes a fixed block, a first support arm, a second support arm and a telescopic hydraulic cylinder group, one end of the first support arm and the second support arm are both fixed to the lower end surface of the fixed block, the other ends of the first support arm and the second support arm are both fixed to the upper end surface of the upper mold body, the first support arm and the second support arm are symmetrically and inclinedly arranged, the tail end of the telescopic hydraulic cylinder group is fixed to the inner side of the upper mold mounting seat, and the telescopic end of the telescopic hydraulic cylinder group is fixed to the upper end surface of the fixed block.

[0012] Preferably, the present application provides an injection mold for an automobile fuel tank cap, which also includes a guide assembly, wherein the guide assembly is installed on both sides of the upper mold body, and the guide assembly includes a first guide sleeve, a second guide sleeve, a first guide column and a second guide column, the first guide sleeve and the second guide sleeve are respectively installed on both sides of the upper mold body, the first guide column and the second guide column are respectively perpendicular to the lower end surface of the upper mold mounting seat, and the first guide column passes through the first guide sleeve, and the second guide column passes through the second guide sleeve.

[0013] Preferably, the present application provides an injection mold for an automobile fuel tank cap, wherein a plurality of ejection holes are provided on the bottom wall of the lower mold cavity, and a bottom plate is also installed on the bottom wall of the lower mold cavity, and an inner cavity refrigeration plate is provided on the surface of the bottom plate.

[0014] Preferably, the present application provides an injection mold for an automobile fuel tank cap, wherein the cooling plate adopts a double-layer structure, and the cooling plate is a semiconductor temperature difference cooling plate.

[0015] Preferably, the present application provides an injection mold for an automobile fuel tank cap, which further includes a push assembly, which is installed on a bottom mounting bracket, and the push assembly includes a first ejector pin, a second ejector pin, a third ejector pin, a first compression spring, a second compression spring and a third compression spring, the tops of the first ejector pin, the second ejector pin and the third ejector pin pass through the lower mold mounting seat and pass through the push hole to be placed under the bottom plate, and the first compression spring, the second compression spring and the third compression spring are respectively arranged between the ends of the first ejector pin, the second ejector pin and the lower end surface of the lower mold mounting seat.

[0016] Preferably, the present application provides an injection mold for an automobile fuel tank cap, which also includes a pressure plate and a push cylinder group, the upper surface of the pressure plate contacts the ends of the first ejector pin, the second ejector pin, and the third ejector pin, the tail end of the push cylinder group is fixed to the bottom mounting bracket, and the telescopic end of the push cylinder group is connected to the lower end surface of the pressure plate.

[0017] Preferably, the present application provides an injection mold for an automobile fuel tank cap, which also includes a spray cooling component, wherein the spray cooling component includes an atomizing water tank, a pipe, an atomizing nozzle mounting seat and a plurality of atomizing nozzles, the atomizing water tank is installed on one side of the bottom mounting bracket, one end of the pipe is connected to the atomizing water tank, and the other end of the pipe is connected to the liquid inlet end of the atomizing nozzle mounting seat, and the plurality of atomizing nozzles are installed at equal intervals on the liquid outlet holes on the atomizing nozzle mounting seat.

[0018] Preferably, a method for using an injection mold for an automobile fuel tank cap comprises the following steps:

[0019] A. When it is necessary to make a fuel tank cap mold for an automobile, first control the telescopic hydraulic cylinder group to work, the telescopic hydraulic cylinder group pushes the fixed block to move, and the fixed block pushes the upper mold body downward to contact the lower mold body through the first support arm and the second support arm;

[0020] B. After the upper mold body contacts the lower mold body, a mold cavity is formed between the upper mold cavity and the lower mold cavity;

[0021] C. Then, high-temperature slurry is injected into the inner box mold cavity from the grouting channel through the external grouting pipe;

[0022] D. After the high-temperature slurry fills the mold cavity, the semiconductor temperature difference cooling sheet cools the mold in the mold cavity evenly to form the mold;

[0023] E. After the mold is formed, the upper mold body is controlled to reset, and the push cylinder group is controlled to work at the same time. The push cylinder group pushes the pressure plate to move up, the pressure plate pushes the ejector pin to move up, and the ejector pin pushes the bottom plate to move up, and the mold is pushed out of the lower mold cavity;

[0024] F. Finally, control the pump body in the atomizing water tank to work, and the water in the atomizing water tank enters the atomizing nozzle through the pipeline. The atomizing nozzle sprays atomized water onto the surface of the mold to further evenly cool it down.

[0025] Beneficial effects:

[0026] (1) The present invention has a novel structural design, is easy to use, and can achieve precise mold closing and mold opening. In addition, it can also evenly cool the fuel tank cap after manufacture, thereby improving the processing quality of the automobile fuel tank cap.

[0027] (2) The driving assembly used in the present invention can drive the upper mold body to move stably. The guide sleeves installed on both sides of the upper mold body cooperate with the guide columns to achieve a guiding effect, further improving the accuracy of the mold closing between the upper mold body and the lower mold body, thereby improving the manufacturing quality of the injection mold.

[0028] (3) In the present invention, a plurality of ejection holes are provided on the bottom wall of the lower mold cavity, and an ejection assembly is arranged below the ejection holes, which can eject the lower mold cavity after the mold is formed. In addition, a cooling plate embedded in the bottom plate can evenly cool the mold to prevent cracking.

[0029] (4) In the present invention, the spray cooling component used can spray and cool the mold after manufacture, thereby achieving the purpose of uniform cooling, thereby improving the mold processing quality.

[0030] The above description is only an overview of the technical solution of the embodiment of the present application. In order to more clearly understand the technical means of the embodiment of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a schematic diagram of the structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the installation of the push assembly of the present invention;

[0034] Figure 3 This is a schematic diagram of the installation of the spray cooling component of the present invention;

[0035] Figure 4 It is the work flow chart of the present invention;

[0036] Explanation of the accompanying drawings: bottom mounting bracket 1, lower mold mounting seat 2, lower mold body 3, side bracket 4, upper mold mounting seat 5, upper mold body 6, lower mold cavity 7, grouting channel 8, upper mold cavity 9, fixed block 10, first support arm 11, second support arm 12, telescopic hydraulic cylinder group 13, first guide sleeve 14, second guide sleeve 15, first guide column 16, second guide column 17, push hole 18, bottom plate 19, refrigeration plate 20, first ejector pin 21, second ejector pin 22, third ejector pin 23, first compression spring 24, second compression spring 25, third compression spring 26, pressure plate 27, push cylinder group 28, atomizing water tank 29, pipeline 30, atomizing nozzle mounting seat 31, atomizing nozzle 32. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover non-exclusive inclusions.

[0039] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0040] The directional words appearing in the following description are all directions shown in the drawings, and do not limit the specific structure of the present application. For example, in the description of the present application, the directions or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application.

[0041] In addition, the expressions of indicated directions such as the X direction, the Y direction, and the Z direction used to illustrate the operation and construction of the components of the present embodiment are not absolute but relative, and although these indications are appropriate when the components are in the positions shown in the figures, when these positions change, these directions should be interpreted differently to correspond to the changes.

[0042] In addition, the terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0043] In the description of the present application, 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, the "connection" or "connection" of a mechanical structure may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through a screw, bolt or other fixing member; the physical connection may also be a detachable connection, such as a mutual snap-on or snap-fit ​​connection; the physical connection may also be an integral connection, such as a connection formed by welding, bonding or integral molding. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0044] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0045] Embodiment 1:

[0046] See also Figure 1-Figure 4 , the present application discloses an injection mold for a fuel tank cap of an automobile, comprising a bottom mounting bracket 1, a lower mold mounting seat 2, a lower mold body 3, a side bracket 4, an upper mold mounting seat 5 and an upper mold body 6;

[0047] The lower die mounting seat 2 is mounted on the base mounting bracket 1, the lower die body 3 is mounted on the lower die mounting seat 2, a lower die cavity 7 is formed on the lower die body 3, and grouting channels 8 are respectively formed on both sides of the lower die cavity 7;

[0048] The side bracket 4 is installed on one side of the bottom mounting bracket 1;

[0049] The upper die mounting seat 5 is mounted on the top of the side bracket 4, and the upper die body 6 is mounted on the upper die mounting seat 5;

[0050] The upper die body 6 has an upper die cavity 9 at the lower end surface, and the upper die cavity 9 is arranged opposite to the lower die cavity 7;

[0051] A driving assembly is also installed between the upper die body 6 and the upper die mounting seat 5 .

[0052] In this embodiment, the driving assembly includes a fixed block 10, a first support arm 11, a second support arm 12 and a telescopic hydraulic cylinder group 13, one end of the first support arm 11 and the second support arm 12 are fixed to the lower end surface of the fixed block 10, the other ends of the first support arm 11 and the second support arm 12 are fixed to the upper end surface of the upper mold body 6, the first support arm 11 and the second support arm 12 are symmetrically and tiltedly arranged, the tail end of the telescopic hydraulic cylinder group 13 is fixed to the inner side of the upper mold mounting seat 5, and the telescopic end of the telescopic hydraulic cylinder group 13 is fixed to the upper end surface of the fixed block 10; it also includes a guide assembly, which is installed on both sides of the upper mold body 6, and the guide assembly includes a first guide sleeve 14, a second guide sleeve 15, a first guide column 16 and a second guide column 17, the first guide sleeve 14 and the second guide sleeve 15 are respectively installed on both sides of the upper mold body 6, the first guide column 16 and the second guide column 17 are respectively perpendicular to the lower end surface of the upper mold mounting seat 5, and the first guide column 16 passes through the first guide sleeve 14, and the second guide column 17 passes through the second guide sleeve 15. The driving assembly adopted in the present invention can promote the upper mold body to move stably, and the guide sleeves installed on both sides of the upper mold body cooperate with the guide columns to achieve a guiding effect, further improving the accuracy of the mold closing between the upper mold body and the lower mold body, thereby improving the manufacturing quality of the injection mold.

[0053] In this embodiment, a plurality of ejection holes 18 are provided on the bottom wall of the lower mold cavity 9, and a bottom plate 19 is also installed on the bottom wall of the lower mold cavity 9, and a refrigeration plate 20 is embedded in the surface of the bottom plate 19; the refrigeration plate 20 adopts a double-layer structure, and the refrigeration plate 20 is a semiconductor temperature difference refrigeration plate; it also includes an ejection assembly, which is installed on the bottom mounting bracket 1, and the ejection assembly includes a first ejector pin 21, a second ejector pin 22, a third ejector pin 23, a first compression spring 24, a second compression spring 25 and a third compression spring 26, and the first ejector pin 21, the second ejector pin 22, and the third ejector pin 23 are ejected. The first ejector 21, the second ejector 22, the third ejector 23 end and the lower end surface of the lower mold mounting seat 2 are respectively provided with a first compression spring 24, a second compression spring 25 and a third compression spring 26; it also includes a pressing plate 27 and a pushing cylinder group 28, the upper surface of the pressing plate 27 contacts the ends of the first ejector 21, the second ejector 22, the third ejector 23, the tail end of the pushing cylinder group 28 is fixed to the bottom mounting bracket 1, and the telescopic end of the pushing cylinder group 28 is connected to the lower end surface of the pressing plate 27. In the present invention, a plurality of pushing holes are provided on the bottom wall of the lower mold cavity, and a pushing assembly is provided below the pushing holes, which can eject the lower mold cavity after the mold is formed. In addition, the refrigeration plate embedded in the bottom plate can evenly cool the mold to prevent cracking.

[0054] Embodiment 2:

[0055] An injection mold for an automobile fuel tank cap, comprising a bottom mounting bracket 1, a lower mold mounting seat 2, a lower mold body 3, a side bracket 4, an upper mold mounting seat 5 and an upper mold body 6;

[0056] The lower die mounting seat 2 is mounted on the base mounting bracket 1, the lower die body 3 is mounted on the lower die mounting seat 2, a lower die cavity 7 is formed on the lower die body 3, and grouting channels 8 are respectively formed on both sides of the lower die cavity 7;

[0057] The side bracket 4 is installed on one side of the bottom mounting bracket 1;

[0058] The upper die mounting seat 5 is mounted on the top of the side bracket 4, and the upper die body 6 is mounted on the upper die mounting seat 5;

[0059] The upper die body 6 has an upper die cavity 9 at the lower end surface, and the upper die cavity 9 is arranged opposite to the lower die cavity 7;

[0060] A driving assembly is also installed between the upper die body 6 and the upper die mounting seat 5 .

[0061] In this embodiment, the driving assembly includes a fixed block 10, a first support arm 11, a second support arm 12 and a telescopic hydraulic cylinder group 13, one end of the first support arm 11 and the second support arm 12 are fixed to the lower end surface of the fixed block 10, the other ends of the first support arm 11 and the second support arm 12 are fixed to the upper end surface of the upper mold body 6, the first support arm 11 and the second support arm 12 are symmetrically and tiltedly arranged, the tail end of the telescopic hydraulic cylinder group 13 is fixed to the inner side of the upper mold mounting seat 5, and the telescopic end of the telescopic hydraulic cylinder group 13 is fixed to the upper end surface of the fixed block 10; it also includes a guide assembly, which is installed on both sides of the upper mold body 6, and the guide assembly includes a first guide sleeve 14, a second guide sleeve 15, a first guide column 16 and a second guide column 17, the first guide sleeve 14 and the second guide sleeve 15 are respectively installed on both sides of the upper mold body 6, the first guide column 16 and the second guide column 17 are respectively perpendicular to the lower end surface of the upper mold mounting seat 5, and the first guide column 16 passes through the first guide sleeve 14, and the second guide column 17 passes through the second guide sleeve 15. The driving assembly adopted in the present invention can promote the upper mold body to move stably, and the guide sleeves installed on both sides of the upper mold body cooperate with the guide columns to achieve a guiding effect, further improving the accuracy of the mold closing between the upper mold body and the lower mold body, thereby improving the manufacturing quality of the injection mold.

[0062] In this embodiment, a plurality of ejection holes 18 are provided on the bottom wall of the lower mold cavity 9, and a bottom plate 19 is also installed on the bottom wall of the lower mold cavity 9, and a refrigeration plate 20 is embedded in the surface of the bottom plate 19; the refrigeration plate 20 adopts a double-layer structure, and the refrigeration plate 20 is a semiconductor temperature difference refrigeration plate; it also includes an ejection assembly, which is installed on the bottom mounting bracket 1, and the ejection assembly includes a first ejector pin 21, a second ejector pin 22, a third ejector pin 23, a first compression spring 24, a second compression spring 25 and a third compression spring 26, and the first ejector pin 21, the second ejector pin 22, and the third ejector pin 23 are ejected. The first ejector 21, the second ejector 22, the third ejector 23 end and the lower end surface of the lower mold mounting seat 2 are respectively provided with a first compression spring 24, a second compression spring 25 and a third compression spring 26; it also includes a pressing plate 27 and a pushing cylinder group 28, the upper surface of the pressing plate 27 contacts the ends of the first ejector 21, the second ejector 22, the third ejector 23, the tail end of the pushing cylinder group 28 is fixed to the bottom mounting bracket 1, and the telescopic end of the pushing cylinder group 28 is connected to the lower end surface of the pressing plate 27. In the present invention, a plurality of pushing holes are provided on the bottom wall of the lower mold cavity, and a pushing assembly is provided below the pushing holes, which can eject the lower mold cavity after the mold is formed. In addition, the refrigeration plate embedded in the bottom plate can evenly cool the mold to prevent cracking.

[0063] This embodiment also includes a spray cooling component, which includes an atomizing water tank 29, a pipe 30, an atomizing nozzle mounting seat 31 and a plurality of atomizing nozzles 32. The atomizing water tank 29 is mounted on one side of the bottom mounting bracket 1. One end of the pipe 30 is connected to the atomizing water tank 29, and the other end of the pipe 30 is connected to the liquid inlet end of the atomizing nozzle mounting seat 31. The plurality of atomizing nozzles 32 are evenly spaced and mounted on the liquid outlet holes on the atomizing nozzle mounting seat 31. In the present invention, the spray cooling component used can spray and cool the mold after manufacture, achieve the purpose of uniform cooling, and thus improve the mold processing quality.

[0064] Working principle: A method for using an injection mold for an automobile fuel tank cap comprises the following steps:

[0065] A. When it is necessary to make a fuel tank cap mold for an automobile, first control the telescopic hydraulic cylinder group to work, the telescopic hydraulic cylinder group pushes the fixed block to move, and the fixed block pushes the upper mold body downward to contact the lower mold body through the first support arm and the second support arm;

[0066] B. After the upper mold body contacts the lower mold body, a mold cavity is formed between the upper mold cavity and the lower mold cavity;

[0067] C. Then, high-temperature slurry is injected into the inner box mold cavity from the grouting channel through the external grouting pipe;

[0068] D. After the high-temperature slurry fills the mold cavity, the semiconductor temperature difference cooling sheet cools the mold in the mold cavity evenly to form the mold;

[0069] E. After the mold is formed, the upper mold body is controlled to reset, and the push cylinder group is controlled to work at the same time. The push cylinder group pushes the pressure plate to move up, the pressure plate pushes the ejector pin to move up, and the ejector pin pushes the bottom plate to move up, and the mold is pushed out of the lower mold cavity;

[0070] F. Finally, control the pump body in the atomizing water tank to work, and the water in the atomizing water tank enters the atomizing nozzle through the pipeline. The atomizing nozzle sprays atomized water onto the surface of the mold to further evenly cool it down.

[0071] In summary, the present invention has novel structural design, is easy to use, can achieve precise mold closing and mold opening, and can also evenly cool the manufactured fuel tank cap, thereby improving the processing quality of the automobile fuel tank cap.

[0072] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An injection mold for a fuel tank cap of an automobile, characterized in that: It comprises a bottom mounting bracket (1), a lower die mounting seat (2), a lower die body (3), a side bracket (4), an upper die mounting seat (5) and an upper die body (6); The lower die mounting seat (2) is mounted on the base mounting bracket (1), the lower die body (3) is mounted on the lower die mounting seat (2), a lower die cavity (7) is provided on the lower die body (3), and grouting channels (8) are respectively provided on both sides of the lower die cavity (7); The side bracket (4) is installed on one side of the bottom mounting bracket (1); The upper die mounting seat (5) is mounted on the top of the side bracket (4), and the upper die body (6) is mounted on the upper die mounting seat (5); An upper mold cavity (9) is formed on the lower end surface of the upper mold body (6), and the upper mold cavity (9) is arranged opposite to the lower mold cavity (7); A driving component is also installed between the upper die body (6) and the upper die mounting seat (5).

2. The injection mold for the automobile fuel tank cap according to claim 1, characterized in that: The driving assembly comprises a fixed block (10), a first support arm (11), a second support arm (12) and a telescopic hydraulic cylinder group (13); one end of the first support arm (11) and the second support arm (12) are both fixed to the lower end surface of the fixed block (10); the other ends of the first support arm (11) and the second support arm (12) are both fixed to the upper end surface of the upper mold body (6); the first support arm (11) and the second support arm (12) are symmetrically inclined; the rear end of the telescopic hydraulic cylinder group (13) is fixed to the inner side of the upper mold mounting seat (5); and the telescopic end of the telescopic hydraulic cylinder group (13) is fixed to the upper end surface of the fixed block (10).

3. The injection mold for the automobile fuel tank cap according to claim 1, characterized in that: The invention also includes a guide assembly, which is installed on both sides of the upper mold body (6). The guide assembly includes a first guide sleeve (14), a second guide sleeve (15), a first guide column (16) and a second guide column (17). The first guide sleeve (14) and the second guide sleeve (15) are respectively installed on both sides of the upper mold body (6). The first guide column (16) and the second guide column (17) are respectively perpendicular to the lower end surface of the upper mold mounting seat (5). The first guide column (16) passes through the first guide sleeve (14), and the second guide column (17) passes through the second guide sleeve (15).

4. The injection mold for the automobile fuel tank cap according to claim 1, characterized in that: The bottom wall of the lower mold cavity (9) is provided with a plurality of ejection holes (18), and a bottom plate (19) is also installed on the bottom wall of the lower mold cavity (9), and a refrigeration plate (20) is embedded in the surface of the bottom plate (19).

5. The injection mold for the automobile fuel tank cap according to claim 4, characterized in that: The refrigeration plate (20) adopts a double-layer structure, and the refrigeration plate (20) is a semiconductor temperature difference refrigeration plate.

6. The injection mold for the automobile fuel tank cap according to claim 4, characterized in that: The invention also comprises a pushing assembly, which is mounted on the bottom mounting bracket (1). The pushing assembly comprises a first ejector pin (21), a second ejector pin (22), a third ejector pin (23), a first compression spring (24), a second compression spring (25) and a third compression spring (26). The tops of the first ejector pin (21), the second ejector pin (22) and the third ejector pin (23) pass through the lower die mounting seat (2) and pass through the pushing hole (18) to be placed below the bottom plate (19). The first compression spring (24), the second compression spring (25) and the third compression spring (26) are respectively arranged between the ends of the first ejector pin (21), the second ejector pin (22) and the third ejector pin (23) and the lower end surface of the lower die mounting seat (2).

7. The injection mold for the automobile fuel tank cap according to claim 6, characterized in that: It also includes a pressing plate (27) and a pushing cylinder group (28), wherein the upper surface of the pressing plate (27) contacts the ends of the first ejector pin (21), the second ejector pin (22), and the third ejector pin (23), the rear end of the pushing cylinder group (28) is fixed to the bottom mounting bracket (1), and the telescopic end of the pushing cylinder group (28) is connected to the lower end surface of the pressing plate (27).

8. The injection mold for the automobile fuel tank cap according to claim 1, characterized in that: The invention also comprises a spray cooling component, which comprises an atomizing water tank (29), a pipe (30), an atomizing nozzle mounting seat (31) and a plurality of atomizing nozzles (32); the atomizing water tank (29) is mounted on one side of the bottom mounting bracket (1); one end of the pipe (30) is connected to the atomizing water tank (29); the other end of the pipe (30) is connected to the liquid inlet end of the atomizing nozzle mounting seat (31); and the plurality of atomizing nozzles (32) are mounted at equal intervals on the liquid outlet holes on the atomizing nozzle mounting seat (31).

9. A method for using the injection mold for an automobile fuel tank cap according to claim 1, characterized in that: The method of use includes the following steps: A. When it is necessary to make a fuel tank cap mold for an automobile, first control the telescopic hydraulic cylinder group to work, the telescopic hydraulic cylinder group pushes the fixed block to move, and the fixed block pushes the upper mold body downward to contact the lower mold body through the first support arm and the second support arm; B. After the upper mold body contacts the lower mold body, a mold cavity is formed between the upper mold cavity and the lower mold cavity; C. Then, high-temperature slurry is injected into the inner box mold cavity from the grouting channel through the external grouting pipe; D. After the high-temperature slurry fills the mold cavity, the semiconductor temperature difference cooling sheet cools the mold in the mold cavity evenly to form the mold; E. After the mold is formed, the upper mold body is controlled to reset, and the push cylinder group is controlled to work at the same time. The push cylinder group pushes the pressure plate to move up, the pressure plate pushes the ejector pin to move up, and the ejector pin pushes the bottom plate to move up, and the mold is pushed out of the lower mold cavity; F. Finally, control the pump body in the atomizing water tank to work, and the water in the atomizing water tank enters the atomizing nozzle through the pipeline. The atomizing nozzle sprays atomized water onto the surface of the mold to further evenly cool it down.

Images