Safety helmet injection molding mold

Abstract

The utility model discloses a safety helmet injection molding mould, relates to safety helmet production field, including fixed mould, lift subassembly and ejection subassembly, the top of fixed mould is provided with the press-fit piece, and the top center of press-fit piece is fixedly connected with the injection molding pipe, and the outside of press-fit piece is provided with the fixed frame, and the ejection subassembly is provided with the fixed frame. And the inner side of the bottom of the fixed frame is fixedly connected with the fixed mold. According to the safety helmet injection molding mold, by arranging the lifting assembly, the ejection assembly and the offset block, in the use process of producing safety helmets through the injection molding mold, tight connection between structures is guaranteed, the situation of material leakage in the subsequent injection molding process is avoided, meanwhile, a formed object is ejected out, and the safety helmet production efficiency is improved. According to the safety helmet injection molding mold, a safety helmet forming object can be conveniently demolded, a gap is formed between the inner bottom of the safety helmet forming object and the mold, the safety helmet forming object is prevented from being damaged during ejection, and a worker can conveniently use the safety helmet injection molding mold.

Description

TECHNICAL FIELD

[0001] The utility model relates to a safety helmet production field, concretely is a safety helmet injection moulding mould. BACKGROUND

[0002] The safety helmet is a kind of head protection device, mainly used to protect head from falling object and other specific factors caused by injury, is widely used in construction, mining, oil field drilling etc., can effectively reduce the impact and injury of head, in the production process of safety helmet, staff can utilize injection moulding mould to assist production.

[0003] However, the current injection moulding mould still has some deficiencies, such as the safety helmet injection mould of convenient demoulding of the application No.202220315279.2, its ejection structure aspect is not considered comprehensively, in the use process of utilizing injection moulding mould to produce safety helmet, if injection moulding mould is not considered comprehensively in ejection structure aspect, then it can cause the demoulding of safety helmet forming article to be influenced, and safety helmet forming article and mould are in close contact, when ejecting, it can cause damage to forming article, seriously influence the use of safety helmet injection moulding mould of staff.

[0004] Therefore, it is urgent to improve this defect, the utility model is to the existing structure and the research improvement of deficiency, provide a kind of safety helmet injection moulding mould. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of safety helmet injection moulding mould to solve the problems in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of safety helmet injection moulding mould, including fixed mould, lifting assembly and ejection assembly, the top of fixed mould is provided with compression joint, and the top center of compression joint is fixedly connected with injection tube, and the outer side of compression joint is provided with fixed frame, and the bottom inner side of fixed frame is fixedly connected with fixed mould, the lifting assembly is arranged in the inner side of fixed frame, and the lifting assembly includes drive motor, rotating screw rod, transmission roller, transmission belt, electric push rod, limiting piece, movable stop rod and rotating roller, the inner bottom of fixed mould is provided with ejection assembly, and the ejection assembly includes fixed frame, small motor, rotating screw rod, square rod and ejection block.

[0007] Further, the outer wall of the compression joint is welded with the clamping connecting block, and the compression joint is slidably connected with the inner side wall of the fixed frame through the clamping connecting block.

[0008] Further, the driving motor is arranged above the fixed frame, an output shaft of the driving motor is fixedly connected with rotating lead screws through a shaft coupling, the number of the rotating lead screws is three, outer walls of the three rotating lead screws are rotatably connected with edges of the pressing members.

[0009] Further, the top end outer walls of the rotating lead screws are fixedly connected with transmission rollers, outer sides of the transmission rollers are provided with transmission belts, both sides of the top of the fixed frame are fixedly connected with electric push rods, and end portions of the electric push rods are fixedly connected with limiting members.

[0010] Further, the end portions of the limiting members are fixedly connected with limiting movable rods, bottom ends of the limiting movable rods are slidingly connected with the fixed frame, outer sides of the limiting movable rods are rotatably connected with rotating rollers, and outer walls of the rotating rollers are in contact with the transmission belts.

[0011] Further, the fixed frame is welded at the inner bottom of the fixed mold, a small motor is arranged below the fixed frame, and an output shaft of the small motor is fixedly connected with a rotating screw through a shaft coupling.

[0012] Further, one end of the rotating screw is rotatably connected with the fixed frame, a square rod is rotatably connected with the outer side of the rotating screw through threads, and the top end of the square rod is welded with an ejection block.

[0013] Further, the inner bottom of the fixed mold is provided with offset blocks on four sides, the offset blocks are welded with ejection rods on one side, the ejection rods are slidingly connected with sliding clamping blocks on one side, and the bottom of the sliding clamping blocks is fixedly connected with lifting push rods.

[0014] The utility model provides a kind of safety helmet injection molding mould, with following beneficial effects:

[0015] 1, the utility model is provided with lifting assembly, in the use process of producing safety helmet by using injection molding mould, with the rotation of rotating lead screw, the pressing member gradually carries out descending movement, so that the pressing member is closely connected with fixed mould, simple structure, guarantee the close connection between structure, avoid the situation that material leaks in subsequent injection molding process, and mechanical automation, avoid manual mold movement, guarantee the production efficiency of safety helmet, facilitate staff to use safety helmet injection molding mould.

[0016] 2, The utility model discloses a ejection assembly and offset block are provided, in the use process of producing safety cap by utilizing injection mould, with the rotation of rotary screw, make square rod and its top end welding ejection block gradually rise upwards to the safety cap formed object is ejected, simple structure, convenient to the safety cap formed object is demoulded, improve the production efficiency of safety cap injection mould, and with the lifting of sliding block, offset block gradually ejects a certain distance to the safety cap formed object, make the inner bottom of safety cap formed object and fixed mould produce gap, guarantee the efficient operation of ejection assembly, avoid damaging safety cap formed object when ejecting, simple structure, convenient for staff to use safety cap injection mould. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the appearance three-dimensional structure schematic diagram of a safety cap injection mould of the utility model;

[0018] Figure 2 It is the fixed mould - offset block three -dimensional sectional structure split schematic diagram of a safety cap injection mould of the utility model;

[0019] Figure 3 It is the fixed mould - lifting push rod three -dimensional sectional structure schematic diagram of a safety cap injection mould of the utility model;

[0020] Figure 4 It is the fixed mould - lifting push rod three -dimensional sectional structure schematic diagram of a safety cap injection mould of the utility model; Figure 3 It is the structure enlarged schematic diagram of A place in the middle.

[0021] In the drawing: 1, fixed mould; 2, press together spare; 3, injection pipe; 4, fixed frame; 5, clamping connecting block; 6, lifting assembly; 601, drive motor; 602, rotary screw rod; 603, transmission roller; 604, transmission belt; 605, electric push rod; 606, limit piece; 607, limit movable rod; 608, rotation roller; 7, ejection assembly; 701, fixed frame; 702, small -size motor; 703, rotary screw rod; 704, square rod; 705, ejection block; 8, offset block; 9, ejection rod; 10, sliding block; 11, lifting push rod. DETAILED DESCRIPTION

[0022] The embodiment of the utility model is further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0023] As Figure 1 And Figure 2As shown, a safety helmet injection molding mold, including fixed mold 1, lifting assembly 6 and ejection assembly 7, the upper portion of fixed mold 1 is provided with compression member 2, and the top center of compression member 2 is fixedly connected with injection pipe 3, and the outer side of compression member 2 is provided with fixed frame 4, and the inner side of the bottom of fixed frame 4 is fixedly connected with fixed mold 1, and the outer wall of compression member 2 is welded with clamping connecting block 5, and compression member 2 is slidingly connected with the inner side wall of fixed frame 4 through clamping connecting block 5, lifting assembly 6 is arranged on the inner side of fixed frame 4, and lifting assembly 6 includes drive motor 601, rotating lead screw 602, transmission roller 603, transmission belt 604, electric push rod 605, limiting piece 606, limiting movable rod 607 and rotating roller 608, drive motor 601 is arranged above fixed frame 4, and the output shaft of drive motor 601 is fixedly connected with rotating lead screw 602 through a shaft coupling, and the number of rotating lead screws 602 is three, the outer wall of the three rotating lead screws 602 is rotatably connected with the edge of compression member 2, the top end outer wall of rotating lead screw 602 is fixedly connected with transmission roller 603, the outer side of transmission roller 603 is provided with transmission belt 604, and the top of fixed frame 4 is fixedly connected with electric push rod 605 on both sides, and the end of electric push rod 605 is fixedly connected with limiting piece 606, the end of limiting piece 606 is fixedly connected with limiting movable rod 607, the bottom end of limiting movable rod 607 is slidingly connected with fixed frame 4, and the outer side of limiting movable rod 607 is rotatably connected with rotating roller 608, and the outer wall of rotating roller 608 is in contact with transmission belt 604;

[0024] Specific operation as follows, the staff drives rotating lead screw 602 to rotate by using drive motor 601, and under the transmission action of transmission roller 603 and transmission belt 604, the remaining two rotating lead screws 602 follow to rotate synchronously, so that the rotating lead screw 602 outside gradually performs descending movement along with the rotation of rotating lead screw 602, and the clamping connecting block 5 welded on the outer wall of compression member 2 slidingly descends along the inner side wall of fixed frame 4, so that compression member 2 is closely connected with fixed mold 1, then the staff transports the molding material into fixed mold 1 from injection pipe 3 fixedly connected with the top center of compression member 2, so as to produce safety helmet, in addition, the staff can drive limiting movable rod 607 fixedly connected with limiting piece 606 at the end to slidingly move on the top of fixed frame 4 by using electric push rod 605, so that rotating roller 608 rotatably connected with limiting movable rod 607 outside adjusts the tension of transmission belt 604, to ensure the smooth transmission of transmission roller 603 and transmission belt 604, the structure is simple, and the staff can use the safety helmet injection molding mold.

[0025] As Figures 1-4As shown, the ejection assembly 7 is arranged at the inner bottom of the fixed mold 1, and the ejection assembly 7 comprises a fixed frame 701, a small motor 702, a rotating screw 703, a square rod 704 and an ejection block 705, the fixed frame 701 is welded at the inner bottom of the fixed mold 1, and a small motor 702 is arranged below the fixed frame 701, and the output shaft of the small motor 702 is fixedly connected with the rotating screw 703 through a shaft coupling, one end of the rotating screw 703 is rotationally connected with the fixed frame 701, and the outer side of the rotating screw 703 is rotationally connected with the square rod 704 through threads, and the top end of the square rod 704 is welded with the ejection block 705, and the inner bottom of the fixed mold 1 is provided with offset blocks 8 on four sides, and the ejection rod 9 is welded on one side of the offset block 8, and the ejection rod 9 is slidingly connected with the sliding clamping block 10 on one side, and the bottom of the sliding clamping block 10 is fixedly connected with the lifting push rod 11;

[0026] Specific operation as follows, after the safety helmet injection molding is finished, the ejection assembly 7 is used to eject the molded article, the small motor 702 drives the rotating screw 703 to rotate, and one end of the rotating screw 703 is rotationally connected with the fixed frame 701, with the rotation of the rotating screw 703, the square rod 704 rotationally connected with the rotating screw 703 on the outer side is gradually raised upward, so that the ejection block 705 welded at the top end of the square rod 704 ejects the molded article, in addition, before the molded article is ejected, the staff uses the lifting push rod 11 to drive the sliding clamping block 10 fixedly connected at the top to move up and down, with the lifting of the sliding clamping block 10, the ejection rod 9 slidingly connected with one side of the sliding clamping block 10 gradually deviates obliquely, so that the offset block 8 welded at the top end of the ejection rod 9 moves, thereby ejecting the safety helmet molded article by a certain distance, so that a gap is generated between the inner bottom of the safety helmet molded article and the fixed mold 1, ensuring efficient operation of the ejection assembly 7, simple structure, convenient for staff to use the safety helmet injection molding mold.

[0027] In summary, the safety helmet injection molding mold, according to Figures 1-4In the use process of producing the safety helmet by using the injection molding mold, first, the staff drives the rotating lead screw 602 to rotate by using the driving motor 601, and under the transmission of the transmission roller 603 and the transmission belt 604, the remaining two rotating lead screws 602 are synchronously rotated, so that the rotating lead screw 602 gradually moves downward with the rotation of the rotating lead screw 602, and the clamping connecting block 5 welded on the outer wall of the pressing piece 2 is clamped and slides downward on the inner side wall of the fixed frame 4, so that the pressing piece 2 is tightly connected with the fixed mold 1, then the staff sends the molding material into the fixed mold 1 from the injection pipe 3 fixedly connected at the top center of the pressing piece 2, so as to produce the safety helmet, in addition, the staff can drive the limiting movable rod 607 fixedly connected at the end of the limiting piece 606 to slide on the top of the fixed frame 4 by using the electric push rod 605, so that the rotating roller 608 rotatably connected on the outside of the limiting movable rod 607 adjusts the tightness of the transmission belt 604, and the transmission of the transmission roller 603 and the transmission belt 604 is smoothly performed, after the safety helmet is injection molded, the molded object is ejected by using the ejecting assembly 7, the rotating screw 703 is driven to rotate by using the small-sized motor 702, and one end of the rotating screw 703 is limitingly and rotatably connected with the fixed frame 701, with the rotation of the rotating screw 703, the square rod 704 rotatably connected with the rotating screw 703 on the outside gradually rises upward, so that the ejecting block 705 welded at the top end of the square rod 704 ejects the molded object, in addition, before the molded object is ejected, the staff drives the sliding clamping block 10 fixedly connected at the top to move up and down by using the lifting push rod 11, with the up-and-down movement of the sliding clamping block 10, the ejecting rod 9 slidably connected on one side of the sliding clamping block 10 gradually deviates obliquely, so that the deviation block 8 welded at the top end of the ejecting rod 9 moves, and the safety helmet molded object is ejected by a certain distance, so that a gap is formed between the inner bottom of the safety helmet molded object and the fixed mold 1, the efficient operation of the ejecting assembly 7 is ensured, the structure is simple, and the staff can conveniently use the safety helmet injection molding mold.

[0028] The embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the present application and its practical application, and to enable others skilled in the art to understand the present application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A safety helmet injection molding mold comprising a stationary mold (1), a lifting assembly (6) and an ejection assembly (7), characterized in that, The top of the fixed mold (1) is provided with a pressing part (2), the top center of the pressing part (2) is fixedly connected with an injection tube (3), the outer side of the pressing part (2) is provided with a fixed frame (4), the bottom inner side of the fixed frame (4) is fixedly connected with the fixed mold (1), the lifting assembly (6) is arranged on the inner side of the fixed frame (4), and the lifting assembly (6) comprises a driving motor (601), a rotating lead screw (602), a transmission roller (603), a transmission belt (604), an electric push rod (605), a limiting piece (606), a limiting movable rod (607) and a rotating roller (608).

2. The safety helmet injection molding mold according to claim 1, wherein, The outer wall of the pressing part (2) is welded with a clamping connecting block (5), and the pressing part (2) is clamped and slidably connected with the inner side wall of the fixed frame (4) through the clamping connecting block (5).

3. The safety helmet injection molding mold according to claim 1, wherein, The driving motor (601) is arranged above the fixed frame (4), the output shaft of the driving motor (601) is fixedly connected with the rotating lead screw (602) through a shaft coupling, the number of the rotating lead screws (602) is three, the outer walls of the three rotating lead screws (602) are rotatably connected with the edges of the pressing part (2).

4. The safety helmet injection molding mold of claim 1, wherein, The top end outer wall of the rotating lead screw (602) is fixedly connected with the transmission roller (603), the outer side of the transmission roller (603) is provided with the transmission belt (604), the top sides of the fixed frame (4) are fixedly connected with the electric push rod (605), and the end portion of the electric push rod (605) is fixedly connected with the limiting piece (606).

5. The safety helmet injection molding mold of claim 1, wherein, The end portion of the limiting piece (606) is fixedly connected with the limiting movable rod (607), the bottom end of the limiting movable rod (607) is clamped and slidably connected with the fixed frame (4), the outer side of the limiting movable rod (607) is rotatably connected with the rotating roller (608), and the outer wall of the rotating roller (608) is in contact with the transmission belt (604).

6. The safety helmet injection molding mold of claim 1, wherein, The fixed frame (701) is welded on the inner bottom of the fixed mold (1), a small motor (702) is arranged below the fixed frame (701), and the output shaft of the small motor (702) is fixedly connected with the rotating screw (703) through a shaft coupling.

7. The safety helmet injection molding mold of claim 1, wherein, One end of the rotating screw (703) is limitingly rotatably connected with the fixed frame (701), the outer side of the rotating screw (703) is rotatably connected with the square rod (704) through threads, and the top end of the square rod (704) is welded with the ejection block (705).

8. The safety helmet injection molding mold of claim 1, wherein, The inner bottom four sides of the fixed mold (1) are provided with offset blocks (8), one side of the offset block (8) is welded with an ejection rod (9), one side of the ejection rod (9) is clamped and slidably connected with a sliding clamping block (10), and the bottom of the sliding clamping block (10) is fixedly connected with a lifting push rod (11).

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