Adjustable safety helmet preforming mold

Abstract

The utility model provides an adjustable safety helmet preforming die, which relates to the field of safety helmet processing, and comprises a lower die mechanism, the lower die mechanism comprises a lower die body, a driving groove, a movable groove, a moving groove, an extrusion port and an ejection port, and a fine adjustment assembly is arranged in the lower die mechanism. The fine adjustment assembly comprises a bidirectional threaded rod, a rotating rod, a fine adjustment internal threaded block, a mold core body, a stabilizing frame and a connecting spring, an ejection assembly is arranged in the lower mold mechanism, the ejection assembly comprises a reset spring, a moving plate, an extrusion block and an ejection block, and the top of the lower mold mechanism is movably connected with the bottom of the upper mold body. According to the utility model, the rotating rod is rotated to drive the two-way threaded rod to rotate, the two-way threaded rod rotates to drive the fine adjustment internal threaded block to move so as to drive the mold core body to perform fine adjustment, and through the movement of the mold core body, the size of a cavity of a mold can be conveniently and quickly adjusted within a certain range.

Description

Technical Field

[0001] This utility model relates to the field of safety helmet processing technology, and in particular to an adjustable safety helmet pre-forming mold. Background Technology

[0002] Safety helmet preform molds are key tools used in the manufacture of safety helmets. Typically, the upper and lower molds are the main working parts of the mold, which form the cavity of the safety helmet when closed. The upper mold is usually mounted on the moving plate of the injection molding machine, while the lower mold is fixed on the fixed plate of the injection molding machine.

[0003] In the existing technology, the structure of the pre-forming mold for safety helmets is relatively fixed, making it difficult to quickly adjust the size of the mold cavity within a certain range. Furthermore, the demolding process requires manual removal by workers, which is quite laborious, thus making the demolding of safety helmets inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable safety helmet preform mold to solve the problems mentioned in the background art, such as the relatively fixed structure of the safety helmet preform mold, the difficulty in quickly adjusting the size of the mold cavity within a certain range, and the need for manual removal by workers during demolding, which is laborious and makes demolding of safety helmets inconvenient.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: It includes a lower mold mechanism, comprising a lower mold body, a drive groove, a movable groove, a moving groove, an extrusion port, and an ejector port. The lower mold mechanism is internally equipped with a fine-tuning component, which includes a bidirectional threaded rod, a rotating rod, a fine-tuning internal threaded block, a mold core body, a stabilizing frame, and a connecting spring. The lower mold mechanism is also internally equipped with an ejector component, which includes a reset spring, a moving plate, an extrusion block, and an ejector block. The top of the lower mold mechanism is movably connected to the bottom of the upper mold body.

[0006] In a preferred embodiment, the lower mold body has a drive groove inside, and both sides of the lower mold body have movable grooves inside, and both sides of the lower mold body have moving grooves inside.

[0007] In a preferred embodiment, the top of the moving groove is provided with a compression port and a top outlet.

[0008] In a preferred embodiment, the inner wall of the drive groove is rotatably connected to the outer wall of one end of the bidirectional threaded rod via a bearing, and the outer walls of both ends of the bidirectional threaded rod are respectively threaded to the inner wall of the fine-tuning internal thread block.

[0009] In a preferred embodiment, the top of the fine-tuning internal thread block is fixedly connected to the bottom of the mold core body, and the inner wall of the movable groove is fixedly connected to the bottom end of the connecting spring.

[0010] In a preferred embodiment, the top of the connecting spring is fixedly connected to the bottom of the stabilizer, and the bottom of the stabilizer is movably abutting against the top of the mold core body.

[0011] In a preferred embodiment, the inner wall of the movable groove is fixedly connected to the bottom end of the return spring, and the top end of the return spring is fixedly connected to the bottom of the movable plate, while the outer wall of the movable plate is movably connected to the inner wall of the movable groove.

[0012] In a preferred embodiment, the top of the movable plate is fixedly connected to the bottom of the extrusion block, and the top of the movable plate is fixedly connected to the bottom of the ejector block. The outer wall of the extrusion block is movably connected to the inner wall of the extrusion port, and the inner wall of the ejector port is movably connected to the outer wall of the ejector block.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. This utility model uses a rotating rod to drive a bidirectional threaded rod to rotate. The rotation of the bidirectional threaded rod drives the fine-tuning internal thread block to move, which in turn drives the mold core body to make fine adjustments. During the fine adjustment of the mold core body, the intermediate stabilizing frame is lifted, and the movement of the stabilizing frame stretches the connecting spring. Through the movement of the mold core body, the size of the mold cavity can be quickly adjusted within a certain range.

[0015] 2. In this utility model, when the lower mold mechanism and the upper mold body approach each other, the bottom of the upper mold body squeezes the extrusion block, which in turn drives the moving plate and the ejector block to move downward. The moving plate squeezes the return spring. After the safety helmet is formed, the edge of the safety helmet is located at the top of the ejector block. When the upper mold body rises, the return spring resets and drives the moving plate and the ejector block to move upward, thereby lifting and demolding the formed safety helmet, which facilitates the demolding of the formed safety helmet. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of an adjustable safety helmet preform mold provided by this utility model;

[0017] Figure 2 A cross-sectional view of an adjustable safety helmet preform mold provided by this utility model;

[0018] Figure 3 A sectional view of the lower mold body of an adjustable safety helmet preform mold provided by this utility model;

[0019] Figure 4A schematic diagram of the ejection assembly of an adjustable safety helmet preform mold provided by this utility model;

[0020] Figure 5 A cross-sectional view of the stabilizing frame of an adjustable safety helmet preform mold provided by this utility model.

[0021] Legend:

[0022] 1. Lower mold mechanism; 101. Lower mold body; 102. Drive groove; 103. Movable groove; 104. Moving groove; 105. Extrusion port; 106. Ejector outlet; 2. Fine-tuning assembly; 201. Bidirectional threaded rod; 202. Rotating rod; 203. Fine-tuning internal threaded block; 204. Mold core body; 205. Stabilizing frame; 206. Connecting spring; 3. Ejection assembly; 301. Return spring; 302. Moving plate; 303. Extrusion block; 304. Ejection block; 4. Upper mold body. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5 This utility model provides a technical solution comprising: a lower mold mechanism 1, the lower mold mechanism 1 including a lower mold body 101, a drive groove 102, a movable groove 103, a moving groove 104, an extrusion port 105 and an ejection port 106, a fine-tuning component 2 inside the lower mold mechanism 1, the fine-tuning component 2 including a bidirectional threaded rod 201, a rotating rod 202, a fine-tuning internal threaded block 203, a mold core body 204, a stabilizing frame 205 and a connecting spring 206, an ejection component 3 inside the lower mold mechanism 1, the ejection component 3 including a reset spring 301, a moving plate 302, an extrusion block 303 and an ejection block 304, the top of the lower mold mechanism 1 being movably connected to the bottom of the upper mold body 4.

[0025] In one embodiment, a drive groove 102 is provided inside the lower mold body 101, and movable grooves 103 are provided inside both sides of the lower mold body 101, and moving grooves 104 are provided inside both sides of the lower mold body 101.

[0026] Specifically, the drive groove 102 facilitates the rotation of the bidirectional threaded rod 201.

[0027] In one embodiment, the top of the moving groove 104 is provided with a compression port 105, and the top of the moving groove 104 is provided with a top outlet 106.

[0028] Specifically, the movement of the moving plate 302, the extrusion block 303, and the ejection block 304 is facilitated by the moving groove 104, the extrusion port 105, and the top outlet 106.

[0029] In one embodiment, the inner wall of the drive groove 102 is rotatably connected to the outer wall of one end of the bidirectional threaded rod 201 via a bearing, and the outer walls of both ends of the bidirectional threaded rod 201 are respectively threadedly connected to the inner wall of the fine-tuning internal thread block 203.

[0030] Specifically: the rotating rod 202 drives the bidirectional threaded rod 201 to rotate, and the rotation of the bidirectional threaded rod 201 drives the fine-tuning internal thread block 203 to move.

[0031] In one embodiment, the top of the fine-tuning internal thread block 203 is fixedly connected to the bottom of the mold core body 204, and the inner wall of the movable groove 103 is fixedly connected to the bottom end of the connecting spring 206.

[0032] Specifically: the movement of the stabilizer 205 stretches the connecting spring 206, preventing the stabilizer 205 from affecting the fine-tuning of the mold core body 204.

[0033] In one embodiment, the top of the connecting spring 206 is fixedly connected to the bottom of the stabilizer 205, and the bottom of the stabilizer 205 is movably abutting against the top of the mold core body 204.

[0034] Specifically: During the fine-tuning process of the mold core body 204, the intermediate stabilizer 205 is lifted up, and the movement of the stabilizer 205 stretches the connecting spring 206.

[0035] In one embodiment, the inner wall of the moving groove 104 is fixedly connected to the bottom end of the return spring 301, and the top end of the return spring 301 is fixedly connected to the bottom of the moving plate 302, while the outer wall of the moving plate 302 is movably connected to the inner wall of the moving groove 104.

[0036] Specifically: When the lower mold mechanism 1 and the upper mold body 4 come close to each other, the bottom of the upper mold body 4 presses the extrusion block 303, which in turn drives the moving plate 302 and the ejector block 304 to move downward. The moving plate 302 presses the reset spring 301. After the safety helmet is formed, the edge of the safety helmet is located at the top of the ejector block 304.

[0037] In one embodiment, the top of the movable plate 302 is fixedly connected to the bottom of the extrusion block 303, and the top of the movable plate 302 is fixedly connected to the bottom of the ejection block 304. The outer wall of the extrusion block 303 is movably connected to the inner wall of the extrusion port 105, and the inner wall of the ejection port 106 is movably connected to the outer wall of the ejection block 304.

[0038] Specifically: the reset spring 301 drives the moving plate 302 and the ejector block 304 to move upward, thereby lifting and demolding the formed safety helmet, which facilitates the demolding of the formed safety helmet.

[0039] Working principle: The rotating rod 202 drives the bidirectional threaded rod 201 to rotate. The rotation of the bidirectional threaded rod 201 drives the fine-tuning internal thread block 203 to move, which in turn drives the mold core body 204 to make fine adjustments. During the fine adjustment of the mold core body 204, the intermediate stabilizing frame 205 is lifted up. The movement of the stabilizing frame 205 stretches the connecting spring 206. When the lower mold mechanism 1 and the upper mold body 4 come closer to each other, the bottom of the upper mold body 4 squeezes the extrusion block 303, which in turn drives the moving plate 302 and the ejector block 304 to move downward. The movement of the moving plate 302 squeezes the reset spring 301. After the safety helmet is formed, the edge of the safety helmet is located at the top of the ejector block 304. When the upper mold body 4 is raised, the reset of the reset spring 301 drives the moving plate 302 and the ejector block 304 to move upward, thereby lifting and demolding the formed safety helmet.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An adjustable safety helmet pre-forming mold, characterized in that, include: The lower mold mechanism (1) includes a lower mold body (101), a drive groove (102), a movable groove (103), a moving groove (104), an extrusion port (105), and an ejector port (106). The lower mold mechanism (1) is internally equipped with a fine-tuning component (2), which includes a bidirectional threaded rod (201), a rotating rod (202), a fine-tuning internal threaded block (203), a mold core body (204), a stabilizing frame (205), and a connecting spring (206). The lower mold mechanism (1) is internally equipped with an ejector component (3), which includes a reset spring (301), a moving plate (302), an extrusion block (303), and an ejector block (304). The top of the lower mold mechanism (1) is movably connected to the bottom of the upper mold body (4).

2. The adjustable safety helmet preform mold according to claim 1, characterized in that: The lower mold body (101) has a drive groove (102) inside, and both sides of the lower mold body (101) have movable grooves (103) inside, and both sides of the lower mold body (101) have moving grooves (104) inside.

3. The adjustable safety helmet preform mold according to claim 2, characterized in that: The top of the moving groove (104) is provided with a pressing port (105) and a top outlet (106).

4. The adjustable safety helmet preform mold according to claim 1, characterized in that: The inner wall of the drive groove (102) is rotatably connected to the outer wall of one end of the bidirectional threaded rod (201) via a bearing, and the outer walls of both ends of the bidirectional threaded rod (201) are respectively threaded to the inner wall of the fine-tuning internal thread block (203).

5. The adjustable safety helmet pre-forming mold according to claim 4, characterized in that: The top of the fine-tuning internal thread block (203) is fixedly connected to the bottom of the mold core body (204), and the inner wall of the movable groove (103) is fixedly connected to the bottom end of the connecting spring (206).

6. The adjustable safety helmet pre-forming mold according to claim 5, characterized in that: The top of the connecting spring (206) is fixedly connected to the bottom of the stabilizer (205), and the bottom of the stabilizer (205) is movably abutting against the top of the mold core body (204).

7. The adjustable safety helmet preform mold according to claim 1, characterized in that: The inner wall of the movable groove (104) is fixedly connected to the bottom end of the return spring (301), and the top end of the return spring (301) is fixedly connected to the bottom of the movable plate (302). The outer wall of the movable plate (302) is movably connected to the inner wall of the movable groove (104).

8. The adjustable safety helmet preform mold according to claim 7, characterized in that: The top of the movable plate (302) is fixedly connected to the bottom of the extrusion block (303), and the top of the movable plate (302) is fixedly connected to the bottom of the ejection block (304). The outer wall of the extrusion block (303) is movably connected to the inner wall of the extrusion port (105), and the inner wall of the ejection port (106) is movably connected to the outer wall of the ejection block (304).

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