Pouring structure of novel hot runner mold

Abstract

The utility model discloses a novel pouring structure of a hot runner mould, which belongs to the technical field of hot runner moulds and comprises a hot runner main body, a nozzle is arranged at the bottom of the hot runner main body, a limit ring is fixed at the top of the nozzle, fixing blocks are fixed on two sides of the nozzle, a limit groove is arranged on one side of each fixing block, and the limit ring is arranged in the limit groove. Mounting plates are symmetrically arranged at the bottom of the hot runner main body, an adjusting rod is rotationally mounted between the mounting plates, movable blocks are symmetrically connected to the adjusting rod in a threaded mode, and a sliding plate is fixed to one side of each movable block. According to the pouring structure of the novel runner mold, the hot runner main body, the nozzle, the limiting ring, the fixed block, the limiting groove, the mounting plate, the adjusting rod, the movable block, the sliding plate, the limiting block and the valve needle are matched for use, so that the pouring structure of the novel runner mold can be conveniently mounted and used, and the purpose of improving the maintenance efficiency of the pouring structure of the novel runner mold is achieved; and therefore, the use of workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of hot runner molds, in particular to a novel casting structure of a hot runner mold. Background Art

[0002] In the conventional hot runner mold casting structure, the hot runner nozzle and the mold cavity directly connect to inject plastic material. This casting structure can achieve good injection molding effect for some larger molds.

[0003] For example, the utility model with application number 201922254452.3 discloses a new casting structure of a hot runner mold. By providing a cold runner between the nozzle of the hot runner and the cavity, and positioning the cold runner on the hot template of the hot runner, the phenomenon of the nozzle of the hot runner being blocked can be avoided, the mold quality can be effectively improved, and the waste of raw materials and labor can be avoided.

[0004] Similar to the above application, there are still some shortcomings:

[0005] The connection installation at the bottom of the casting structure of the new runner mold is not very convenient. The installation and fixing method is time-consuming and labor-intensive, and is inconvenient to operate, which in turn affects the working efficiency of the casting structure of the new runner mold and is not conducive to the maintenance work of the staff.

[0006] Therefore, a new type of hot runner mold casting structure is designed to optimize the above problems. Utility Model Content

[0007] The main purpose of the utility model is to provide a new type of hot runner mold casting structure to solve the related technical problems raised in the above background technology.

[0008] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0009] A new type of casting structure for a hot runner mold includes a hot runner body, a nozzle is arranged at the bottom of the hot runner body, a limiting ring is fixed on the top of the nozzle, fixed blocks are fixed on both sides of the nozzle, a limiting groove is provided on one side of the fixed block, mounting plates are symmetrically arranged at the bottom of the hot runner body, adjusting rods are rotatably installed between the mounting plates, movable blocks are symmetrically threaded on the adjusting rods, a slide plate is fixed on one side of the movable block, limiting blocks are fixed on the sides of the slide plates close to each other, and a valve needle is installed inside the nozzle.

[0010] Preferably: a filter disc is fixed to the top side wall of the valve needle, and spiral leaves are evenly arranged on the outer side of the valve needle.

[0011] Preferably, an injection channel is provided inside the hot runner body, buffer sheets are evenly arranged inside the injection channel, a through hole is provided on one side of the buffer sheet, and a buffer block is fixed inside the injection channel.

[0012] Preferably, both ends of the adjusting rod are provided with a rotating block, and the rotating block is an anti-slip rotating block.

[0013] Preferably, heating tubes are evenly arranged inside the nozzle, and an isolation layer is arranged outside the nozzle.

[0014] Preferably, the buffer sheet is a conical plate, and a high temperature resistant protective layer is provided on the outer side of the buffer block.

[0015] The beneficial effects of the utility model are:

[0016] The utility model provides a new type of casting structure of a hot runner mold. Through the coordinated use of a hot runner body, a nozzle, a limiting ring, a fixed block, a limiting groove, a mounting plate, an adjusting rod, a movable block, a slide plate, a limiting block and a valve needle, the limiting ring on the top of the nozzle is placed in the groove at the bottom of the hot runner body, and at the same time, the fixed blocks and the limiting grooves on both sides of the nozzle are aligned with the limiting blocks. The adjusting rod is rotated to make the movable block and the slide plate and the limiting block on the adjusting rod move horizontally until the limiting block is engaged in the inside of the limiting groove, and then the fixed block and the nozzle are quickly limited through the limiting groove, which can facilitate the installation and use of the casting structure of the new runner mold, achieve the purpose of improving the maintenance efficiency of the casting structure of the new runner mold, and thus facilitate the work. Personnel's use; through the coordinated use of spiral blades, filter discs and injection molding runners, the cylinder is used to push and pull the valve needle to cause the bottom end of the valve needle to move up, thereby retracting the injection molding glue, and the spiral blades on the outside of the valve needle lengthen the flow length of the injection molding liquid to improve the heating efficiency of the injection molding liquid. At the same time, the filter disc filters the injection molding liquid to improve the quality of the injection mold, thereby meeting people's use needs; through the coordinated use of buffer plates, through holes and buffer blocks, the injection molding liquid through the injection molding runner enters the buffer plate through pressure, and the blocking of the buffer plate slows down the impact of the injection molding liquid. The injection molding liquid continues to enter the buffer block at the corner of the injection molding runner, and the buffer block further protects the inner wall of the injection molding runner, thereby improving the protection effect of the casting structure of the habitual hot flow mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front cross-sectional view of the utility model;

[0018] Figure 2 For the utility model Figure 1 A magnified view of the structure at center;

[0019] Figure 3 It is a connection diagram of the adjusting rod and the movable block of the utility model.

[0020] In the figure: 1. hot runner body; 2. nozzle; 3. limit ring; 4. fixing block; 5. limit groove; 6. mounting plate; 7. adjusting rod; 8. movable block; 9. slide plate; 10. limit block; 11. valve needle; 12. spiral blade; 13. filter disc; 14. injection runner; 15. buffer disc; 16. through hole; 17. buffer block. DETAILED DESCRIPTION

[0021] In order to make the technical solution of the utility model more clear and specific to those skilled in the art, the utility model is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the utility model are not limited thereto.

[0022] Embodiment 1

[0023] like Figure 1-Figure 3 As shown, this embodiment provides a casting structure of a new hot runner mold, including a hot runner body 1, a nozzle 2 is arranged at the bottom of the hot runner body 1, a limiting ring 3 is fixed on the top of the nozzle 2, fixed blocks 4 are fixed on both sides of the nozzle 2, and a limiting groove 5 is provided on one side of the fixed block 4, and mounting plates 6 are symmetrically arranged at the bottom of the hot runner body 1, and adjusting rods 7 are rotatably installed between the mounting plates 6, and movable blocks 8 are symmetrically threaded on the adjusting rods 7, a slide plate 9 is fixed on one side of the movable block 8, and a limiting block 10 is fixed on the side of the slide plate 9 close to each other, a valve needle 11 is installed inside the nozzle 2, a filter plate 13 is fixed on the top side wall of the valve needle 11, and spiral leaves 12 are evenly arranged on the outer side of the valve needle 11.

[0024] By using the hot runner body 1, nozzle 2, limiting ring 3, fixed block 4, limiting groove 5, mounting plate 6, adjusting rod 7, movable block 8, slide plate 9, limiting block 10 and valve needle 11 in coordination, the limiting ring 3 at the top of the nozzle 2 is placed in the groove at the bottom of the hot runner body 1, and the fixed blocks 4 and limiting groove 5 on both sides of the nozzle 2 are aligned with the limiting block 10, and the adjusting rod 7 is rotated to make the movable block 8 and slide plate 9 on the adjusting rod 7 and the limiting block 10 move horizontally until the limiting block 10 is engaged in the limiting groove 5, so as to quickly limit the fixed block 4 and the nozzle 2 through the limiting groove 5. The spiral blade 12, the filter disc 13 and the injection molding runner 14 are used in combination, and the bottom end of the valve needle 11 is pushed and pulled by the cylinder to cause the bottom end of the valve needle 11 to move upward, thereby retracting the injection molding glue. The spiral blade 12 on the outside of the valve needle 11 lengthens the flow length of the injection molding liquid, thereby improving the heating efficiency of the injection molding liquid. At the same time, the filter disc 13 filters the injection molding liquid to improve the quality of the injection mold, thereby meeting people's usage needs.

[0025] Embodiment 2

[0026] In this embodiment, if Figure 1-Figure 3 As shown, an injection channel 14 is provided inside the hot runner body 1 , buffer sheets 15 are evenly arranged inside the injection channel 14 , a through hole 16 is provided on one side of the buffer sheet 15 , and a buffer block 17 is fixed inside the injection channel 14 .

[0027] By using the buffer sheet 15, the through hole 16 and the buffer block 17 in coordination, the injection liquid enters the buffer sheet 15 through the injection channel 14 under pressure, and the buffer sheet 15 blocks and mitigates the impact of the injection liquid, and the injection liquid continues to enter the buffer block 17 at the corner of the injection channel 14. The buffer block 17 further protects the inner wall of the injection channel 14, thereby improving the protective effect of the casting structure of the habitual hot flow mold.

[0028] In this embodiment, both ends of the adjusting rod 7 are provided with a rotating block, and the rotating block is an anti-slip rotating block.

[0029] The provision of the anti-slip rotating block makes it convenient for the staff to rotate the adjusting rod 7 through the rotating block, which makes the use easier.

[0030] In this embodiment, heating tubes are evenly arranged inside the nozzle 2 , and an isolation layer is arranged outside the nozzle 2 .

[0031] The isolation layer is provided to prevent the loss of heat inside the nozzle 2, thereby improving the thermal insulation performance and saving energy.

[0032] In this embodiment, the buffer sheet 15 is a conical plate, and a high temperature resistant protective layer is provided on the outer side of the buffer block 17 .

[0033] The conical buffer sheet 15 buffers the flow rate of the injection liquid, slowing down the damage to the interior of the injection liquid, and the protective effect of the buffer block 17 is improved through the protective layer.

[0034] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A new type of hot runner mold casting structure, characterized by: The invention comprises a hot runner body (1), wherein a nozzle (2) is arranged at the bottom of the hot runner body (1), a limiting ring (3) is fixed at the top of the nozzle (2), a fixing block (4) is fixed on both sides of the nozzle (2), a limiting groove (5) is provided on one side of the fixing block (4), a mounting plate (6) is symmetrically arranged at the bottom of the hot runner body (1), an adjusting rod (7) is rotatably installed between the mounting plates (6), a movable block (8) is symmetrically threaded on the adjusting rod (7), a slide plate (9) is fixed on one side of the movable block (8), and a limiting block (10) is fixed on the side of the slide plate (9) close to each other, and a valve needle (11) is installed inside the nozzle (2).

2. According to the pouring structure of a new hot runner mold according to claim 1, it is characterized in that: A filter disc (13) is fixed to the top side wall of the valve needle (11), and spiral leaves (12) are evenly arranged on the outer side of the valve needle (11).

3. The pouring structure of a new hot runner mold according to claim 1, characterized in that: An injection molding runner (14) is provided inside the hot runner body (1), buffer sheets (15) are evenly arranged inside the injection molding runner (14), a through hole (16) is provided on one side of the buffer sheet (15), and a buffer block (17) is fixed inside the injection molding runner (14).

4. The pouring structure of a new hot runner mold according to claim 1 is characterized in that: Both ends of the adjusting rod (7) are provided with a rotating block, and the rotating block is an anti-slip rotating block.

5. The pouring structure of a new hot runner mold according to claim 1, characterized in that: The interior of the nozzle (2) is evenly provided with heating tubes, and the exterior of the nozzle (2) is provided with an isolation layer.

6. The pouring structure of a new hot runner mold according to claim 3 is characterized in that: The buffer sheet (15) is a conical plate, and a high temperature resistant protective layer is arranged on the outer side of the buffer block (17).

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