Safety helmet integral forming die with exhaust assembly

Abstract

The safety helmet integrated forming die comprises a die frame and an exhaust structure, a hydraulic push rod is vertically installed at the top end of the interior of the die frame, the bottom of the hydraulic push rod is horizontally connected with an upper die assembly, a lower die assembly is arranged under the upper die assembly, and the exhaust structure is arranged on the lower die assembly. The exhaust structures are symmetrically installed on the two sides of the upper die assembly and the two sides of the lower die assembly respectively. According to the safety helmet integrated forming mold provided with the exhaust assemblies, the exhaust structures are symmetrically installed on the two sides of the upper mold assembly and the lower mold assembly correspondingly, so that the upper mold assembly and the lower mold assembly are in butt joint through the structures between the sealing structures and the sealing grooves, and therefore the upper injection mold and the lower injection mold are pressed into a relatively-closed structure; and under the operation of the exhaust structure, the upper exhaust port and the lower exhaust port are used for quickly exhausting the interiors of the upper mold assembly and the lower mold assembly which are in butt joint, so that the quality problems of bubbles, flaws and the like of the safety helmet caused by gas residues during injection molding are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of safety helmet processing technology, specifically to an integrated molding mold for a safety helmet equipped with an exhaust component. Background Technology

[0002] A safety helmet is a piece of equipment that provides protection for the human head, primarily used to prevent injuries to the head caused by falling objects or other specific factors. A safety helmet consists of a shell, liner, chin strap, and accessories, and its protective mechanisms include cushioning, shock absorption, and stress distribution.

[0003] In conventional molding molds, air residue may remain inside the mold during product processing. This can cause air bubbles and defects inside the injection molded parts when the molten material is injected, affecting product quality.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed an integrated molding mold for a safety helmet with an exhaust component. Utility Model Content

[0005] The purpose of this invention is to provide an integrated mold for a safety helmet with an exhaust assembly, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an integrated mold for a safety helmet with an exhaust assembly, comprising a mold frame and an exhaust structure. A hydraulic push rod is vertically installed at the top of the mold frame, and an upper mold assembly is horizontally connected to the bottom of the hydraulic push rod. A lower mold assembly is located directly below the upper mold assembly. The exhaust structure is symmetrically installed on both sides of the upper mold assembly and the lower mold assembly. The exhaust structure includes a stabilizing frame, a vacuum pump, and a connecting pipe. A vacuum pump is installed inside the stabilizing frame, and a connecting pipe is installed at the output end of the vacuum pump.

[0007] Furthermore, the mold frame includes a base, buffer piles, guide columns, a top plate, and a hydraulic cylinder control frame. Buffer piles are installed on the top surface of the base, and guide columns are vertically installed at the four opposite corners of the base. A top plate is installed on the top of the guide columns, and a hydraulic cylinder control frame is installed in the middle of the top plate.

[0008] Furthermore, the buffer piles are simultaneously arranged at equal intervals on the four sides and the middle of the top of the base, and the guide columns are fixedly connected to the base.

[0009] Furthermore, the cylinder control frame is connected to the top of the hydraulic push rod, and the hydraulic push rod is symmetrically installed at both ends of the bottom of the cylinder control frame.

[0010] Furthermore, the upper mold assembly includes an upper mold frame, an upper injection mold, a guide sleeve, a sealing structure, and an upper vent. The upper injection mold is installed inside the upper mold frame, and guide sleeves are vertically installed at the four opposite corners of the upper mold frame. A sealing structure is provided at the bottom between the upper mold frame and the upper injection mold, and upper vents are provided at the bottom surfaces of the four opposite corners of the sealing structure.

[0011] Furthermore, the upper injection mold is fixedly embedded in the middle of the upper mold frame, and the guide sleeve is welded to the upper mold frame.

[0012] Furthermore, the lower mold assembly includes a lower mold frame, an injection lower mold, a support sleeve, a sealing groove, and a lower vent. The injection lower mold is installed inside the lower mold frame, and support sleeves are vertically installed at the four opposite corners of the lower mold frame. A sealing groove is provided on the bottom surface between the lower mold frame and the injection lower mold, and a lower vent is provided on the top surface at the four opposite corners of the sealing structure.

[0013] Furthermore, the end of the connecting pipe furthest from the vacuum pump is connected to the upper mold frame and the lower mold frame respectively, and the upper exhaust port and the lower exhaust port are both connected to the connecting pipe through pipelines.

[0014] This utility model provides an integrated mold for a safety helmet with a venting assembly, which has the following features:

[0015] Beneficial effects:

[0016] 1. In this utility model, because the outer surface structure of the sealing structure matches the inner surface structure of the sealing groove, when the upper mold assembly is vertically extended and retracted by the hydraulic push rod, and vertically connects with the lower mold assembly from top to bottom, as the upper mold frame and the lower mold frame connect and close, the sealing structure located between the upper mold frame and the upper injection mold will connect with the sealing groove between the lower mold frame and the lower injection mold. This makes the lower injection mold and the upper injection mold in a relatively closed structural space. At this time, under the operation of the vacuum pump, with the assistance of the upper exhaust port on the bottom surface of the sealing structure and the lower exhaust port set inside the sealing groove, the upper injection mold and the lower injection mold after docking are quickly evacuated. This effectively solves the problem of gas remaining inside the upper injection mold and the lower injection mold during injection, which causes quality problems such as bubbles and defects in the injection of safety helmets. At the same time, the above structure also ensures the sealing of the upper injection mold and the lower injection mold after docking as much as possible, avoiding unnecessary impact of external factors on the internal injection space.

[0017] 2. This utility model utilizes buffer piles arranged around the top perimeter and center of the base, with the tops of the buffer piles inserted into the bottom of the lower mold frame. This structure provides structural support when the upper mold assembly is pushed vertically to the top surface of the lower mold assembly by the hydraulic push rod. The buffer piles also act as a buffer, preventing excessive contact between the upper and lower mold assemblies. This protects the upper and lower injection molds within the upper and lower mold frames, extending their service life. Furthermore, while providing a relatively enclosed structural space for the upper and lower injection molds, the upper and lower mold frames also offer excellent structural protection, preventing damage from external factors. Attached Figure Description

[0018] Figure 1 This is a side-view structural diagram of the body of an integrated mold for a safety helmet with an exhaust assembly according to the present invention.

[0019] Figure 2 This is a schematic diagram of the mold frame structure of an integrated molding mold for a safety helmet equipped with an exhaust component according to the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of the upper mold component of an integrated molding mold for a safety helmet equipped with an exhaust assembly, according to the present invention.

[0021] Figure 4 This is a three-dimensional structural diagram of the lower mold component of an integrated molding mold for a safety helmet equipped with an exhaust assembly, according to this utility model.

[0022] In the diagram: 1. Mold frame; 101. Base; 102. Buffer pile; 103. Guide column; 104. Top plate; 105. Cylinder control frame; 2. Hydraulic push rod; 3. Upper mold assembly; 301. Upper mold frame; 302. Injection upper mold; 303. Guide sleeve; 304. Sealing structure; 305. Upper vent; 4. Lower mold assembly; 401. Lower mold frame; 402. Injection lower mold; 403. Support sleeve; 404. Sealing groove; 405. Lower vent; 5. Venting structure; 501. Stabilizer; 502. Vacuum pump; 503. Connecting pipe. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] like Figures 1 to 4As shown, a one-piece mold for a safety helmet with an exhaust assembly includes a mold frame 1 and an exhaust structure 5. A hydraulic push rod 2 is vertically mounted at the top of the mold frame 1, and an upper mold assembly 3 is horizontally connected to the bottom of the hydraulic push rod 2. A lower mold assembly 4 is located directly below the upper mold assembly 3. The exhaust structure 5 is symmetrically mounted on both sides of the upper mold assembly 3 and the lower mold assembly 4. The exhaust structure 5 includes a stabilizing frame 501, a vacuum pump 502, and a connecting pipe 503. The vacuum pump 502 is installed inside the stabilizing frame 501, and the connecting pipe 503 is installed at the output end of the vacuum pump 502. The upper mold assembly 3 includes an upper mold frame 301, an upper injection mold 302, a guide sleeve 303, a sealing structure 304, and an upper exhaust port 305. The upper injection mold 302 is installed inside the upper mold frame 301, and guide sleeves 303 are vertically mounted at the four opposite corners of the upper mold frame 301. A bottom space is provided between the upper mold frame 301 and the upper injection mold 302. The system has a sealing structure 304, and each of the four opposite corners of the bottom surface of the sealing structure 304 is provided with an upper exhaust port 305. The upper injection mold 302 is fixedly embedded in the middle of the upper mold frame 301, and the guide sleeve 303 is welded to the upper mold frame 301. As the upper mold frame 301 and the lower mold frame 401 are docked and closed, the sealing structure 304 located between the upper mold frame 301 and the upper injection mold 302 docks with the sealing groove 404 between the lower mold frame 401 and the lower injection mold 402, so that the lower injection mold 402 and the upper injection mold 302 are in a relatively closed structural space. At this time, under the operation of the vacuum pump 502, the upper injection mold 302 and the lower injection mold 402 are quickly evacuated with the assistance of the upper exhaust port 305 on the bottom surface of the sealing structure 304 and the lower exhaust port 405 provided inside the sealing groove 404.

[0025] like Figures 1 to 4The mold frame 1 shown includes a base 101, buffer piles 102, guide columns 103, a top plate 104, and a hydraulic cylinder control frame 105. Buffer piles 102 are installed on the top surface of the base 101, and guide columns 103 are vertically installed at the four opposite corners of the base 101. A top plate 104 is installed on the top of the guide columns 103, and a hydraulic cylinder control frame 105 is installed in the middle of the top plate 104. Buffer piles 102 are equidistantly arranged on the four sides and the middle of the top of the base 101. The guide columns 103 are fixedly connected to the base 101. The hydraulic cylinder control frame 105 is connected to the top of the hydraulic push rod 2, and the hydraulic push rod 2 is symmetrically installed at both ends of the bottom of the hydraulic cylinder control frame 105. The lower mold assembly 4 includes a lower mold frame 401, an injection lower mold 402, a support sleeve 403, a sealing groove 404, and a lower vent 405. The injection lower mold 402 is installed inside the lower mold frame 401. Support sleeves 403 are vertically installed at the four opposite corners of 401. A sealing groove 404 is provided on the bottom surface between the lower mold frame 401 and the injection mold 402. The top surface of the four opposite corners of the sealing structure 304 is provided with a lower exhaust port 405. The end of the connecting pipe 503 away from the vacuum pump 502 is connected to the upper mold frame 301 and the lower mold frame 401 respectively. The upper exhaust port 305 and the lower exhaust port 405 are connected to the connecting pipe 503 through pipelines. Buffer piles 102 are arranged around the top and in the middle of the base 101. The top of the buffer piles 102 is inserted into the bottom of the lower mold frame 401. With this structure, when the hydraulic push rod 2 pushes the upper mold assembly 3 to the top surface of the lower mold assembly 4 in the vertical direction, it can provide structural support and also provide structural buffering by utilizing the structural characteristics of the buffer piles 102.

[0026] In summary, as Figures 1 to 4 As shown, when the safety helmet mold with exhaust assembly is in use, the hydraulic push rod 2, which is vertically installed at the bottom of the top plate 104, is first operated under the control of the oil cylinder control frame 105 in the middle of the top plate 104. Under the extension and contraction of its structure, the guide sleeves 303 at the four opposite corners of the upper mold assembly 3 connected to the bottom of the hydraulic push rod 2 will slide along the surface of the guide column 103 vertically installed between the base 101 and the top plate 104, so that the entire upper mold assembly 3 moves vertically downward and docks with the lower mold assembly 4.

[0027] At this time, as the upper mold frame 301 and the lower mold frame 401 dock, the upper injection mold 302 and the lower injection mold 402 inside them dock with each other. During this process, the sealing structure 304 between the upper mold frame 301 and the upper injection mold 302 also docks with the sealing groove 404 between the lower mold frame 401 and the lower injection mold 402. Then, the exhaust structure 5 located on both sides of the upper mold assembly 3 and the lower mold assembly 4 will operate synchronously.

[0028] With the vacuum pump 502 operating inside the stabilizer 501, the connecting pipe 503 and pipeline are connected to the upper exhaust port 305 and the lower exhaust port 405. Excess gas is quickly discharged inside the closed and connected upper mold frame 301 and lower mold frame 401, thereby avoiding quality problems such as bubbles and defects caused by excess air during the injection molding of the safety helmet.

[0029] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A one-piece mold for a safety helmet with an exhaust assembly, comprising a mold frame (1) and an exhaust structure (5), characterized in that: A hydraulic push rod (2) is vertically installed at the top of the mold frame (1), and an upper mold assembly (3) is horizontally connected to the bottom of the hydraulic push rod (2). A lower mold assembly (4) is provided directly below the upper mold assembly (3). The exhaust structure (5) is symmetrically installed on both sides of the upper mold assembly (3) and the lower mold assembly (4). The exhaust structure (5) includes a stabilizer (501), a vacuum pump (502), and a connecting pipe (503). The vacuum pump (502) is installed inside the stabilizer (501), and the connecting pipe (503) is installed at the output end of the vacuum pump (502).

2. The one-piece molding mold for a safety helmet with an exhaust assembly according to claim 1, characterized in that, The mold frame (1) includes a base (101), a buffer pile (102), a guide column (103), a top plate (104), and a hydraulic cylinder control frame (105). The top surface of the base (101) is equipped with a buffer pile (102), and the four diagonal corners of the base (101) are vertically equipped with guide columns (103). The top of the guide columns (103) is equipped with a top plate (104), and the hydraulic cylinder control frame (105) is installed in the middle of the top plate (104).

3. The one-piece molding mold for a safety helmet with an exhaust assembly according to claim 2, characterized in that, The buffer piles (102) are simultaneously arranged at equal intervals on the four sides and the middle of the top of the base (101), and the guide column (103) is fixedly connected to the base (101).

4. The one-piece molding mold for a safety helmet with an exhaust assembly according to claim 2, characterized in that, The cylinder control frame (105) is connected to the top of the hydraulic push rod (2), and the hydraulic push rod (2) is symmetrically installed at both ends of the bottom of the cylinder control frame (105).

5. The one-piece molding mold for a safety helmet with an exhaust assembly according to claim 1, characterized in that, The upper mold assembly (3) includes an upper mold frame (301), an injection upper mold (302), a guide sleeve (303), a sealing structure (304), and an upper vent (305). The injection upper mold (302) is installed inside the upper mold frame (301), and the guide sleeve (303) is vertically installed at each of the four opposite corners of the upper mold frame (301). A sealing structure (304) is provided at the bottom between the upper mold frame (301) and the injection upper mold (302), and an upper vent (305) is provided at the bottom surface of each of the four opposite corners of the sealing structure (304).

6. A one-piece mold for a safety helmet with an exhaust assembly according to claim 5, characterized in that, The upper injection mold (302) is fixedly embedded in the middle of the upper mold frame (301), and the guide sleeve (303) is welded to the upper mold frame (301).

7. A one-piece mold for a safety helmet with an exhaust assembly according to claim 5, characterized in that, The lower mold assembly (4) includes a lower mold frame (401), an injection lower mold (402), a support sleeve (403), a sealing groove (404), and a lower vent (405). The injection lower mold (402) is installed inside the lower mold frame (401), and the support sleeve (403) is vertically installed at each of the four opposite corners of the lower mold frame (401). A sealing groove (404) is provided on the bottom surface between the lower mold frame (401) and the injection lower mold (402), and a lower vent (405) is provided on the top surface at each of the four opposite corners of the sealing structure (304).

8. A one-piece mold for a safety helmet with an exhaust assembly according to claim 7, characterized in that, The end of the connecting pipe (503) away from the vacuum pump (502) is connected to the upper mold frame (301) and the lower mold frame (401) respectively, and the upper exhaust port (305) and the lower exhaust port (405) are connected to the connecting pipe (503) through pipelines.

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