Nitrogen needle assembly of forming die

Abstract

The utility model discloses a nitrogen needle assembly of a forming die, which relates to the technical field of nitrogen needles and comprises a sleeve, a stop block is fixedly mounted at one end of the sleeve, an air inlet pipe is mounted on the side wall of the sleeve, and an adjusting mechanism is arranged in the sleeve. The adjusting mechanism comprises a threaded rod, a mounting cylinder, a limiting piece and a sealing piece, an adjusting cavity is formed in the sleeve, the threaded rod is rotationally connected to the inner wall of the adjusting cavity, the sealing piece is movably connected to the side wall of the threaded rod and movably connected into the adjusting cavity, the mounting cylinder is fixedly mounted at one end of the sealing piece, and the limiting piece is fixedly mounted on the side wall of the mounting cylinder; according to the technical scheme provided by the utility model, the adjusting mechanism is adopted, the threaded rod is adjusted and rotated as required, and the sealing element can be driven to slide in the adjusting cavity by rotating the threaded rod, so that the distance between the sealing element and the inner wall of the top of the adjusting cavity can be adjusted, and the injection amount of nitrogen can be adjusted; adjustment can be carried out more accurately by observing the scale lines, and use is more convenient and flexible.

Description

TECHNICAL FIELD

[0001] The utility model relates to nitrogen gas needle technical field especially relates to a nitrogen gas needle assembly of forming die. BACKGROUND

[0002] Injection molding is also called injection molding, which is a kind of injection molding method. The advantages of injection molding method are fast production speed, high efficiency, automatic operation, various colors and shapes, simple to complex shape, large to small size, accurate product size, easy to update product, and can produce complex products. Injection molding is suitable for mass production and complex product forming processing field. However, ordinary injection molding products are prone to shrinkage and surface shrinkage, which affects the quality of products, so in order to overcome the defects of ordinary injection molding, gas assisted injection molding technology is used, and nitrogen gas needle is needed at this time.

[0003] The conventional nitrogen gas needle assembly can only inject nitrogen into the mold during use, and cannot adjust the injection amount of nitrogen as needed, so it is not flexible and convenient to use. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problems that the conventional nitrogen gas needle assembly can only inject nitrogen into the mold during use, and cannot adjust the injection amount of nitrogen as needed, so it is not flexible and convenient to use.

[0005] Therefore, the utility model provides a nitrogen gas needle assembly of forming die, which comprises a sleeve, a blocking block is fixedly installed at one end of the sleeve, an air inlet pipe is installed on the side wall of the sleeve, an adjusting mechanism is arranged in the sleeve,

[0006] The adjusting mechanism comprises a threaded rod, a mounting cylinder, a limiting piece and a sealing piece, an adjusting cavity is formed in the sleeve, the threaded rod is rotatably connected to the inner wall of the adjusting cavity, the sealing piece is movably connected to the side wall of the threaded rod, and the sealing piece is movably connected to the inside of the adjusting cavity, the mounting cylinder is fixedly installed at one end of the sealing piece, the limiting piece is fixedly installed on the side wall of the mounting cylinder, the limiting piece is slidably connected to the inside of the adjusting cavity, a flow pipe is fixedly installed in the sleeve, one end of the flow pipe is communicated with the air inlet pipe, and the other end of the flow pipe is communicated with the adjusting cavity.

[0007] Optionally, one end of the flow pipe is located at the top side of the adjusting cavity, and one end of the flow pipe is located at the top of the sealing piece.

[0008] Optionally, a plurality of scale lines are formed in the side wall of the limiting piece.

[0009] Optionally, the adjusting cavity is provided with an air outlet mechanism at one end.

[0010] Optionally, the air outlet mechanism comprises a movable piece, a baffle and a limiting block, a flow-through cavity is formed at the top of the adjusting cavity, the top of the flow-through cavity is a trapezoidal cavity, an air outlet is formed at the top of the flow-through cavity, the air outlet is located at one side of the blocking block, the movable piece is movably connected inside the threaded rod, the baffle is fixedly installed at one end of the movable piece, and the limiting block is fixedly installed on the inner wall of the air outlet.

[0011] Optionally, a supporting spring is fixedly installed at one end of the baffle, and the supporting spring is located at the side wall of the movable piece.

[0012] Optionally, a sealing gasket is fixedly installed at one end of the baffle, and the sealing gasket is located at one side of the baffle.

[0013] From the above technical solutions, it can be seen that the embodiments of the present application have the following advantages:

[0014] 1. The nitrogen needle assembly of the forming die comprises an adjusting mechanism, the rotating threaded rod is adjusted according to needs, the sealing element can slide in the adjusting cavity by rotating the threaded rod, the distance between the sealing element and the inner wall of the top of the adjusting cavity can be adjusted, the injection amount of nitrogen can be adjusted, the adjustment can be more accurate by observing the scale line, and the use is more convenient and flexible.

[0015] 2. The nitrogen needle assembly of the forming die comprises a movable piece and a baffle, so that the injection timing of nitrogen can be controlled.

[0016] These features and advantages of the present application will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below with reference to the drawings:

[0018] Figure 1 is a structural schematic view of the present application;

[0019] Figure 2 is a structural schematic view of the bottom of the present application;

[0020] Figure 3 is a structural schematic view of the present application;

[0021] Figure 4 is a structural schematic view of the present application.

[0022] Explanation of reference signs: 1, sleeve; 2, blocking block; 3, air inlet pipe; 4, threaded rod; 5, mounting cylinder; 6, limiting piece; 7, scale line; 8, movable piece; 9, sealing piece; 10, flow-through pipe; 11, adjusting cavity; 12, flow-through cavity; 13, baffle; 14, air outlet; 15, limiting block; 16, supporting spring; 17, sealing gasket. DETAILED DESCRIPTION

[0023] The technical solutions of the embodiments of the utility model are explained and described below in combination with the drawings of the embodiments of the utility model. However, the following embodiments are only preferred embodiments of the utility model, and not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] One nitrogen needle assembly of a forming die is specifically described below in combination with the drawings of the embodiments of the utility model.

[0025] Embodiment 1

[0026] For the convenience of understanding, please refer to Figures 1 to 4 One embodiment of the nitrogen needle assembly of a forming die provided by the utility model comprises a sleeve 1, the sleeve 1 is fixedly provided with a blocking block 2 at one end, an air inlet pipe 3 is installed on the side wall of the sleeve 1, and an adjusting mechanism is arranged in the sleeve 1.

[0027] The adjusting mechanism comprises a threaded rod 4, a mounting cylinder 5, a limiting piece 6 and a sealing piece 9, the sleeve 1 is provided with an adjusting cavity 11, the threaded rod 4 is rotationally connected to the inner wall of the adjusting cavity 11, the sealing piece 9 is movably connected to the side wall of the threaded rod 4 and movably connected to the inside of the adjusting cavity 11, the mounting cylinder 5 is fixedly installed at one end of the sealing piece 9, the limiting piece 6 is fixedly installed on the side wall of the mounting cylinder 5 and slidably connected to the inside of the adjusting cavity 11, the sleeve 1 is fixedly provided with a flow-through pipe 10, one end of the flow-through pipe 10 is communicated with the air inlet pipe 3, and the other end of the flow-through pipe 10 is communicated with the adjusting cavity 11.

[0028] It should be noted that the sleeve 1 is installed in the forming die, the distance between the sleeve 1 and the cavity of the forming die can be limited by arranging the blocking block 2, the nitrogen gas can be filled by arranging the air inlet pipe 3, the nitrogen gas filled by the air inlet pipe 3 can flow to the inside of the adjusting cavity 11 by arranging the flow-through pipe 10, the sliding direction of the mounting cylinder 5 and the sealing piece 9 in the adjusting cavity 11 can be limited by arranging the limiting piece 6, the mounting cylinder 5 and the sealing piece 9 are prevented from rotating in the adjusting cavity 11, the sealing piece 9 can be slid in the adjusting cavity 11 by rotating the threaded rod 4, so that the distance between the sealing piece 9 and the top inner wall of the adjusting cavity 11 can be adjusted, and the filling amount of the nitrogen gas can be adjusted, so that the use is more convenient and flexible.

[0029] In some embodiments, as shown in Figure 3 One end of the flow pipe 10 is located inside the adjusting cavity 11 near the top side, and the other end of the flow pipe 10 is located on the top of the sealing piece 9.

[0030] It should be noted that by arranging the flow pipe 10, the nitrogen gas injected by the air inlet pipe 3 can be injected between the top of the sealing piece 9 and the top of the adjusting cavity 11.

[0031] In some embodiments, as shown in Figure 2 The side wall of the limiting piece 6 is provided with a plurality of scale lines 7.

[0032] It should be noted that by arranging the scale lines 7, the injection amount of nitrogen gas can be observed.

[0033] Embodiment 2

[0034] In some embodiments, as shown in Figure 4 One end of the adjusting cavity 11 is provided with an air outlet mechanism, the air outlet mechanism includes a movable piece 8, a baffle 13 and a limiting block 15, the top of the adjusting cavity 11 is provided with a flow cavity 12, the top of the flow cavity 12 is a trapezoidal cavity, the top of the flow cavity 12 is provided with an air outlet 14, the air outlet 14 is located on one side of the blocking block 2, the movable piece 8 is movably connected inside the threaded rod 4, the baffle 13 is fixedly installed on one end of the movable piece 8, the limiting block 15 is fixedly installed on the inner wall of the air outlet 14, one end of the baffle 13 is fixedly installed with a supporting spring 16, the supporting spring 16 is located on the side wall of the movable piece 8, one end of the baffle 13 is fixedly installed with a sealing gasket 17, and the sealing gasket 17 is located on one side of the baffle 13.

[0035] It should be noted that by arranging the baffle 13, the flow cavity 12 and the air outlet 14 can be blocked, by arranging the movable piece 8, the movement of the baffle 13 can be controlled, by arranging the top of the flow cavity 12 as a trapezoidal cavity, when the baffle 13 moves downward, the flow cavity 12 can be connected with the air outlet 14, by arranging the limiting block 15, the position of the baffle 13 can be limited, by arranging the supporting spring 16, the baffle 13 can be supported, and by arranging the movable piece 8 and the baffle 13, the injection timing of nitrogen gas can be controlled.

[0036] Working principle: before use according to the size of the rotating screw rod 4, mould, through the rotation of screw rod 4 can drive sealing element 9 inside the adjusting cavity 11 sliding, so can adjust the distance between sealing element 9 and the top of adjusting cavity 11 inner wall, according to the need to adjust the position of sealing element 9, in this way can adjust the injection amount of nitrogen, through the observation of scale line 7 can be more accurate adjustment, then nitrogen is injected through the inlet pipe 3, nitrogen injection inlet pipe 3 can be injected to the top of sealing element 9 and the top of adjusting cavity 11, need to inject pull the movable element 8 control baffle 13 down, when baffle 13 down, flow through cavity 12 can be connected with the gas outlet 14, make the nitrogen inside adjusting cavity 11 can be discharged by the gas outlet 14 through flow through cavity 12, so as to inject nitrogen into the mould, complete the nitrogen filling.

[0037] The above-described embodiments are merely used to illustrate the technical solutions of the present application, rather than limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A nitrogen pin assembly for a forming die, characterized by: The utility model provides a kind of air flow regulating device, including sleeve (1), the sleeve (1) one end is fixedly installed with blocking block (2), the sleeve (1) side wall is installed with air inlet pipe (3), the sleeve (1) inside is provided with adjusting mechanism; The adjusting mechanism includes a threaded rod (4), a mounting cylinder (5), a limiting piece (6) and a sealing element (9), the sleeve (1) is internally provided with an adjusting cavity (11), the threaded rod (4) is rotatably connected to the inner wall of the adjusting cavity (11), the sealing element (9) is movably connected to the side wall of the threaded rod (4), and the sealing element (9) is movably connected to the inside of the adjusting cavity (11), the mounting cylinder (5) is fixedly installed at one end of the sealing element (9), the limiting piece (6) is fixedly installed on the side wall of the mounting cylinder (5), and the limiting piece (6) is slidably connected to the inside of the adjusting cavity (11), the sleeve (1) is internally fixedly installed with a flow-through pipe (10), one end of the flow-through pipe (10) is in communication with the air inlet pipe (3), and the other end of the flow-through pipe (10) is located in communication with the adjusting cavity (11).

2. A nitrogen needle assembly for a forming die according to claim 1, wherein: One end of the flow-through pipe (10) is located inside the adjusting cavity (11) near the top side, and one end of the flow-through pipe (10) is located at the top of the sealing element (9).

3. A nitrogen needle assembly for a forming die according to claim 1, wherein: A plurality of scale lines (7) are formed on the side wall of the limiting piece (6).

4. A nitrogen needle assembly for a forming die according to claim 1, wherein: One end of the adjusting cavity (11) is provided with an air outlet mechanism.

5. A nitrogen needle assembly for a forming die according to claim 4, wherein: The air outlet mechanism includes a movable element (8), a baffle (13) and a limiting block (15), the adjusting cavity (11) is provided with a flow-through cavity (12) at the top, the flow-through cavity (12) is a trapezoidal cavity at the top, the flow-through cavity (12) is provided with an air outlet (14) at the top, the air outlet (14) is located on one side of the blocking block (2), the movable element (8) is movably connected to the inside of the threaded rod (4), the baffle (13) is fixedly installed at one end of the movable element (8), and the limiting block (15) is fixedly installed on the inner wall of the air outlet (14).

6. A nitrogen needle assembly for a forming die according to claim 5, wherein: The baffle (13) is fixedly installed with a supporting spring (16) at one end, and the supporting spring (16) is located on the side wall of the movable element (8).

7. A nitrogen needle assembly for a forming die according to claim 5, wherein: The baffle (13) is fixedly installed with a sealing gasket (17) at one end, and the sealing gasket (17) is located on one side of the baffle (13).

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