Hot runner balance shunting device suitable for multi-point injection

Abstract

The utility model relates to the technical field of injection molds, in particular to a hot runner balance shunting device suitable for multi-point injection, which mainly comprises a mounting frame, a fixed box is arranged on the inner side of the mounting frame, a positioning plate I is arranged on the inner side of the fixed box, and a shunting box is arranged at the top end of the positioning plate I; a flow dividing pipe is arranged on the outer side of the flow dividing box, an adjusting plate is arranged on the outer side of the flow dividing pipe, a heating pipe is arranged at the bottom end of the adjusting plate, the heat dissipation plate is arranged at the bottom end of the adjusting plate, and a surrounding condensation pipe is arranged at the top of the heat dissipation plate. According to the hot runner balance flow dividing device suitable for multi-point injection, flow dividing control is conducted on fluid injected into the injection molding pipe through connection of the flow dividing pipe and the connecting pipe, local high temperature is avoided, and then the situation that the injection molding effect is affected due to fluid hardening acceleration caused by temperature reduction during flowing is avoided; and the temperature is regulated and controlled by arranging the heating pipes at different contact positions, so that the injection molding effect is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is a kind of hot runner balanced shunt device suitable for multiple point injection. BACKGROUND

[0002] Hot runner shunt device is the key component in injection mold, for even distribution of molten plastic to multiple cavities or gates, ensure the filling pressure and speed of each cavity consistent, so as to improve the quality and production efficiency of injection product. The device is widely used in multi-cavity mold, large mold and high-precision injection product.

[0003] In the injection process of existing hot runner shunt equipment, the molten plastic is shunted by setting multiple channels or gates to allow heat to spread. At this time, if the shunt pipeline is too long, it may cause the molten plastic to cool and harden after shunting, resulting in reduced transmission speed and affecting the subsequent plastic molding effect. If the shunt pipeline is too short, the heat cannot be completely spread, and the continuous processing will still cause the heat to rise, thereby reducing the service life of the equipment, which needs to be optimized and improved. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of hot runner balanced shunt device suitable for multiple point injection to solve the problem that injection molding effect or equipment service life will be affected if temperature control and adjustment of shunt pipeline are difficult after shunting in the injection structure as described in the background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of hot runner balanced shunt device suitable for multiple point injection, comprising: mounting frame, the inner side of the mounting frame is provided with fixed box, and the inner side of fixed box is provided with locating plate one, further comprising temperature control and adjustment assembly and heat dissipation adjustment assembly:

[0006] The temperature control and adjustment assembly includes a shunt box, which is arranged at the top end of the locating plate one, and a shunt pipe is arranged on the outer side of the shunt box. An adjusting plate is arranged on the outer side of the shunt pipe, and a heating pipe is arranged at the bottom end of the adjusting plate. The temperature control and adjustment assembly is used for heating temperature control and adjustment during transmission of the shunt pipe. The heat dissipation adjustment assembly includes a heat dissipation plate, which is arranged at the bottom end of the adjusting plate. A surrounding condenser pipe is arranged at the top of the heat dissipation plate. A circulating water tank is connected to the outer side of the surrounding condenser pipe. A heat dissipation hole is arranged in the heat dissipation plate. The heat dissipation adjustment assembly is used for heat dissipation adjustment of the end of the shunt pipe.

[0007] Preferably, a motor is installed at the bottom end of the locating plate one, and a rotating rod is connected to the top end of the motor.

[0008] Preferably, the shunt box is connected to the top end of the rotating rod, and an injection pipe is installed at the top end of the shunt box.

[0009] Preferably, the inside of the adjusting plate is provided with an arc-shaped slot for limiting the adjusting position of the shunt pipe.

[0010] Preferably, the bottom end of the adjusting plate is provided with a mounting plate, and the heating pipe is arranged outside the mounting plate.

[0011] Preferably, the bottom end of the shunt pipe is connected with a positioning plate II, and the bottom end of the positioning plate II is connected with a connecting pipe.

[0012] Preferably, the bottom end of the connecting pipe is connected with an injection port, and the surrounding condenser pipe is arranged outside the connecting pipe.

[0013] Preferably, the top end of the circulating water tank is provided with a temperature sensor for detecting the water temperature inside the circulating water tank.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model discloses a shunt pipe and connecting pipe are connected, and the fluid injected by the injection pipe is controlled, avoids local high temperature, then avoids the temperature reduction when flowing and causes fluid hardening to accelerate and influences injection effect, and temperature regulation is carried out through the heating pipe of different contact positions, so as to ensure injection molding effect.

[0016] When the connecting pipe connects the injection port to inject fluid, the surrounding condenser pipe is arranged outside to be wound and heat exchanged, and the heat dissipation hole at the bottom end can be ventilated and heat dissipated, so that the injection port is cooled and adjusted at the injection position, the service life of the injection port is improved, the sustainable processing of the equipment is ensured, and the processing efficiency is improved. DRAWINGS

[0017] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 It is the three-dimensional structure schematic diagram of the internal structure of the utility model;

[0019] Figure 3 It is the three-dimensional structure schematic diagram of the temperature control adjusting assembly of the utility model;

[0020] Figure 4 It is the three-dimensional structure schematic diagram of the heat dissipation adjusting assembly of the utility model.

[0021] In the diagram: 1. Mounting bracket; 2. Fixing box; 3. Positioning plate one; 4. Motor; 5. Rotating rod; 6. Diverter box; 7. Injection molding tube; 8. Diverter pipe; 9. Adjusting plate; 10. Arc groove; 11. Mounting plate; 12. Heating tube; 13. Positioning plate two; 14. Heat sink; 15. Connecting pipe; 16. Injection port; 17. Surrounding condenser tube; 18. Heat dissipation hole; 19. Circulating water tank; 20. Temperature sensor. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

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

[0024] like Figure 1 - Figure 4 As shown, this application provides a hot runner balancing and splitting device suitable for multi-point injection, including: a mounting frame 1, a fixing box 2 is provided on the inner side of the mounting frame 1, and a positioning plate 3 is provided on the inner side of the fixing box 2;

[0025] The temperature control and adjustment component includes a distribution box 6, which is located at the top of the positioning plate 3. A distribution pipe 8 is provided on the outside of the distribution box 6, and an adjustment plate 9 is provided on the outside of the distribution pipe 8. A heating pipe 12 is provided at the bottom of the adjustment plate 9. The temperature control and adjustment component is used for heating temperature control and adjustment during the transmission of the distribution pipe 8.

[0026] Specifically, such as Figure 2 As shown, a motor 4 is installed at the bottom of the positioning plate 3, and a rotating rod 5 is connected to the top of the motor 4. The rotation of the rotating rod 5 controls the flow distribution box 6 to drive the flow distribution pipe 8 to swing at a certain angle, which facilitates temperature control at different positions.

[0027] Specifically, such as Figure 2 As shown, the flow divider 6 is connected to the top of the rotating rod 5, and the top of the flow divider 6 is equipped with an injection tube 7. Molten plastic is poured into the injection tube 7 and then transferred through the flow divider 6 to the flow divider pipe 8 for flow division.

[0028] Specifically, such as Figure 4 As shown, the inside of the adjusting plate 9 is provided with arc-shaped grooves 10 on all four sides. The arc-shaped grooves 10 are used to limit the adjustment position of the diversion pipe 8.

[0029] Specifically, as shown in Figure 4 The bottom end of the adjusting plate 9 is provided with a mounting plate 11, and the outer side of the mounting plate 11 is provided with a heating pipe 12. The heating pipe 12 is provided with three heating positions. The shunt pipe 8 rotates to different positions in the arc-shaped groove 10 to receive different temperatures.

[0030] The heat dissipation adjusting assembly includes a heat dissipation plate 14 provided at the bottom end of the adjusting plate 9. The top of the heat dissipation plate 14 is provided with a surrounding condensing pipe 17. The outer side of the surrounding condensing pipe 17 is connected with a circulating water tank 19. The inside of the heat dissipation plate 14 is provided with a heat dissipation hole 18. The heat dissipation adjusting assembly is used for heat dissipation adjustment of the end of the shunt pipe 8.

[0031] Specifically, as shown in Figure 4 The bottom end of the shunt pipe 8 is connected with a positioning plate two 13. The bottom end of the positioning plate two 13 is connected with a connecting pipe 15. The connecting pipe 15 is threadedly connected with the shunt pipe 8. The shunt pipe 8 is provided as a hose with certain adjustment performance.

[0032] Specifically, as shown in Figure 4 The bottom end of the connecting pipe 15 is connected with an injection port 16. The surrounding condensing pipe 17 is provided at the outer side of the connecting pipe 15. The surrounding condensing pipe 17 is wound at the outer side of the four connecting pipes 15. The surrounding condensing pipe 17 can control the temperature of the injection contact position to avoid affecting the service life of the injection port 16.

[0033] Specifically, as shown in Figure 1 The top end of the circulating water tank 19 is provided with a temperature sensor 20. The temperature sensor 20 is used for detecting the water temperature in the circulating water tank 19. When the detected water temperature reaches a defined value, external water circulation temperature control can be performed.

[0034] In this embodiment, the connection of the shunt pipe 8 and the connecting pipe 15 controls the shunt of the fluid injected by the injection pipe 7 to avoid local high temperature. Then, in order to avoid the temperature reduction caused by the flow to accelerate the hardening of the fluid and affect the injection effect, the heating pipe 12 with different contact positions is set to adjust the temperature. When the fluid is injected at the injection port 16, the surrounding condensing pipe 17 is wound and heat exchanged at the outer side. The heat dissipation hole 18 at the bottom end can be ventilated and heat dissipated. In this way, the injection port 16 is cooled and adjusted at the injection position to improve the service life of the injection port 16.

[0035] The specific scheme is: when the injection fluid is injected, the injection fluid is injected through the injection pipe 7, then is distributed through the connection of the distribution box 6 and the distribution pipe 8, then in order to avoid the temperature reduction and cooling hardening of the fluid in the distribution pipe 8 during the transmission after the distribution, the rotation position of the distribution pipe 8 arranged in the soft tube is adjusted through the rotation of the rotating rod 5, then the heating distance of the distribution pipe 8 and the heating pipe 12 changes, the temperature can be adjusted according to the actual requirement, the fluid after the secondary heating is injected through the injection port 16, the top end of the injection port 16 is cooled through the surrounding condensing pipe 17, the surrounding condensing pipe 17 is connected with the external circulating water tank 19, the cooling effect is achieved, then the heat dissipation hole 18 at the bottom end plays a certain effect of ventilation and heat dissipation, the external temperature of the injection port 16 is reduced after the injection, the continuous high temperature is avoided to affect the service life.

[0036] Those skilled in the art should understand that the discussion of the above any embodiment is only exemplary; the technical features in the above embodiments or different embodiments can be combined under the idea of the present application, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of simplicity.

[0037] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such modifications, variations, and equivalents that fall within the spirit and scope of the present application are intended to be included within the scope of the present application.

Claims

1. A hot runner balancing and splitting device suitable for multi-point injection, comprising: A mounting bracket (1), wherein a fixing box (2) is provided on the inner side of the mounting bracket (1), and a positioning plate (3) is provided on the inner side of the fixing box (2), characterized in that it further includes: The temperature control adjustment component includes a distribution box (6), which is located at the top of the positioning plate (3), and a distribution pipe (8) is provided on the outside of the distribution box (6). An adjustment plate (9) is provided on the outside of the distribution pipe (8), and a heating pipe (12) is provided at the bottom of the adjustment plate (9). The temperature control adjustment component is used for heating temperature control adjustment during the transmission of the distribution pipe (8). The heat dissipation adjustment assembly includes a heat dissipation plate (14), which is located at the bottom of the adjustment plate (9), and a condenser tube (17) is arranged around the top of the heat dissipation plate (14). A circulating water tank (19) is connected to the outside of the condenser tube (17). A heat dissipation hole (18) is provided inside the heat dissipation plate (14). The heat dissipation adjustment assembly is used for heat dissipation adjustment at the end of the diversion pipe (8).

2. The hot runner balancing and splitting device suitable for multi-point injection according to claim 1, characterized in that, The bottom end of the positioning plate (3) is equipped with a motor (4), and the top end of the motor (4) is connected to a rotating rod (5).

3. A hot runner balancing and splitting device suitable for multi-point injection according to claim 2, characterized in that, The diversion box (6) is connected to the top of the rotating rod (5), and an injection molding tube (7) is installed on the top of the diversion box (6).

4. A hot runner balancing and splitting device suitable for multi-point injection according to claim 1, characterized in that, The adjustment plate (9) has arc-shaped grooves (10) on all four sides inside, and the arc-shaped grooves (10) are used to limit the adjustment position of the diversion pipe (8).

5. A hot runner balancing and splitting device suitable for multi-point injection according to claim 1, characterized in that, An mounting plate (11) is installed at the bottom of the adjusting plate (9), and the heating tube (12) is located on the outside of the mounting plate (11).

6. A hot runner balancing and splitting device suitable for multi-point injection according to claim 1, characterized in that, The bottom end of the diversion pipe (8) is connected to a positioning plate two (13), and the bottom end of the positioning plate two (13) is connected to a connecting pipe (15).

7. A hot runner balancing and splitting device suitable for multi-point injection according to claim 6, characterized in that, The bottom end of the connecting pipe (15) is connected to an injection port (16), and the surrounding condenser pipe (17) is located on the outside of the connecting pipe (15).

8. A hot runner balancing and splitting device suitable for multi-point injection according to claim 1, characterized in that, A temperature sensor (20) is installed at the top of the circulating water tank (19), and the temperature sensor (20) is used to detect the water temperature inside the circulating water tank (19).

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