A feeding tube structure for an injection molding machine

Abstract

The utility model relates to injection molding equipment technical field, and specifically discloses a kind of feeding pipe structure for injection molding machine, including copper pipe, cooling water tank is installed in copper pipe outer wall, cooling copper pipe is wound in copper pipe outer wall, cooling water tank is connected with cooling copper pipe top end by water inlet pipe and communicates, cooling copper pipe bottom end is connected with cooling water tank by backwater pipe and communicates.The utility model in the present application cooling copper pipe is wound in copper pipe outer wall, cooling copper pipe can absorb the heat of the injection molding raw material in molten state in copper pipe, and then the injection molding raw material in molten state in copper pipe is cooled in time, avoid the degradation phenomenon due to the temperature of the injection molding raw material in molten state in copper pipe is too high, and cooling copper pipe is helically wound in copper pipe outer wall, and the injection molding raw material in molten state in copper pipe can be cooled by heat absorption multiple times, ensure the timeliness and cooling effect of the injection molding raw material in molten state in copper pipe cooling.

Description

Technical Field

[0001] This utility model relates to the field of injection molding equipment technology, and in particular to a feeding pipe structure for an injection molding machine. Background Technology

[0002] An injection molding machine, also known as an injection molding machine or injection molding machine, is a major molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. Injection molding machines can be classified into vertical, horizontal, and vertical-horizontal combined types according to the arrangement of the injection device and the clamping device. An injection molding machine usually consists of an injection system, a mold clamping system, a hydraulic transmission system, an electrical control system, a lubrication system, a heating and cooling system, and a safety monitoring system. The injection molding machine heats the plastic and applies high pressure to the molten plastic, causing it to be injected and fill the mold cavity.

[0003] The feed tube of an injection molding machine is an essential component. However, when the molten injection material is injected into the feed tube, it is prone to degradation due to the excessively high temperature of the molten material. Existing feed tubes cannot cool the excessively hot injection material in time. Therefore, in order to solve this problem, a new feed tube structure for injection molding machines is proposed. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a feeding tube structure for injection molding machines.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A feeding pipe structure for an injection molding machine includes a copper pipe, a cooling water tank is installed on the outer wall of the copper pipe, a cooling copper pipe is wound around the outer wall of the copper pipe, the cooling water tank is connected to the top of the cooling copper pipe through an inlet pipe, and the bottom of the cooling copper pipe is connected to the cooling water tank through a return pipe. The copper tube has a cavity inside, an electric heating wire is installed inside the cavity, and heat-conducting oil is placed inside the cavity.

[0006] Preferably, the outer wall of the copper tube has a spiral groove, and the cooling copper tube is located within the spiral groove.

[0007] Preferably, a plurality of heat-conducting copper plates are installed inside the cooling water tank, the ends of which penetrate through the cooling water tank and extend to the outside of the cooling water tank, and the portion of the heat-conducting copper plate located on the outside of the cooling water tank is provided with a plurality of heat dissipation fins.

[0008] Preferably, the middle section of the return water pipe is connected to several heat dissipation copper pipes, and a cooling fan is installed on the outer wall of the copper pipes, with the cooling fan located on the side of the several heat dissipation copper pipes.

[0009] Preferably, a mounting plate is installed on the outer wall of the copper tube, and a cooling fan is installed on the side of the mounting plate away from the copper tube.

[0010] Preferably, a fixing plate is installed on the outer wall of the copper pipe, and a fixing block is installed on the side of the fixing plate away from the copper pipe, and the cooling water tank is installed on the side of the fixing block away from the copper pipe.

[0011] Preferably, a connecting flange is installed at the top of the copper pipe, and several connecting holes are opened in a ring on the connecting flange. A feeding nozzle is connected to the bottom of the copper pipe, and a water pump is installed in the water inlet pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, a cooling copper tube is wound around the outer wall of a copper tube. The cooling copper tube can absorb the heat of the molten injection molding material inside the copper tube, thereby cooling the molten injection molding material in the copper tube in a timely manner and avoiding degradation due to excessively high temperature of the molten injection molding material inside the copper tube. Furthermore, by using the cooling copper tube to spirally wound around the outer wall of the copper tube, the molten injection molding material inside the copper tube can be cooled by absorbing heat multiple times, ensuring the timeliness and effectiveness of cooling the molten injection molding material inside the copper tube.

[0013] 2: In this utility model, when the cooling water enters the cooling water tank through several heat dissipation copper pipes, the cooling fan is activated. The cooling fan can blow air to cool the several heat dissipation copper pipes, thereby cooling the cooling water that has passed through the heat dissipation copper pipes. This can cool the cooling water that has absorbed heat in time, and prevent the cooling water temperature entering the cooling water tank from being too high, which would cause poor cooling of the molten injection molding material in the copper pipes. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a feeding pipe for an injection molding machine proposed in this utility model; Figure 2 for Figure 1 Enlarged view of part A in the middle; Figure 3 This is a schematic diagram showing the connection between the cooling water tank and the water inlet pipe of the feeding pipe structure for an injection molding machine proposed in this utility model; Figure 4 This is a schematic diagram of the structure of a copper tube for a feeding pipe structure of an injection molding machine proposed in this utility model.

[0015] In the diagram: 1. Copper pipe; 2. Connecting flange; 3. Connecting hole; 4. Feed nozzle; 5. Fixing plate; 6. Fixing block; 7. Cooling water tank; 8. Inlet pipe; 9. Water pump; 10. Cooling copper pipe; 11. Return pipe; 12. Mounting plate; 13. Cooling fan; 14. Heat dissipation copper pipe; 15. Thermally conductive copper fins; 16. Heat dissipation fins; 17. Spiral groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figure 1-4 A feeding pipe structure for an injection molding machine includes a copper pipe 1, a cooling water tank 7 installed on the outer wall of the copper pipe 1, a cooling copper pipe 10 wound around the outer wall of the copper pipe 1, the cooling water tank 7 being connected to the top end of the cooling copper pipe 10 through an inlet pipe 8, and the bottom end of the cooling copper pipe 10 being connected to the cooling water tank 7 through a return pipe 11. The copper tube 1 has a cavity inside, an electric heating wire is installed inside the cavity, and heat transfer oil is placed inside the cavity.

[0018] As a technical optimization of this utility model, a spiral groove 17 is formed on the outer wall of the copper pipe 1, and the cooling copper pipe 10 is located in the spiral groove 17; several heat-conducting copper sheets 15 are installed in the cooling water tank 7, the ends of the heat-conducting copper sheets 15 penetrate through the cooling water tank 7 and extend to the outside of the cooling water tank 7, and several heat dissipation fins 16 are provided on the part of the heat-conducting copper sheets 15 located on the outside of the cooling water tank 7; several heat dissipation copper pipes 14 are connected in the middle section of the return water pipe 11, and a cooling fan 13 is installed on the outer wall of the copper pipe 1, and the cooling fan 13 is located on the side of several heat dissipation copper pipes 14; the spiral groove 17 can facilitate the installation of the cooling copper pipe 10 and facilitate the contact between the cooling copper pipe 10 and the copper pipe 1, thereby absorbing the heat of the molten injection molding material in the copper pipe 1 and increasing the contact area between the cooling copper pipe 10 and the copper pipe 1; through the combined use of the heat-conducting copper sheets 15 and the heat dissipation fins 16, the cooling water in the cooling water tank 7 can be cooled and cooled down.

[0019] As a technical optimization of this utility model, an mounting plate 12 is installed on the outer wall of the copper pipe 1, and a cooling fan 13 is installed on the side of the mounting plate 12 away from the copper pipe 1; a fixing plate 5 is installed on the outer wall of the copper pipe 1, and a fixing block 6 is installed on the side of the fixing plate 5 away from the copper pipe 1; a cooling water tank 7 is installed on the side of the fixing block 6 away from the copper pipe 1; a connecting flange 2 is installed at the top of the copper pipe 1, and several connecting holes 3 are opened in a ring on the connecting flange 2; a feeding nozzle 4 is connected to the bottom of the copper pipe 1, and a water pump 9 is installed in the water inlet pipe 8; the mounting plate 12 can facilitate the connection between the cooling fan 13 and the copper pipe 1, and the cooperation of the fixing plate 5 and the fixing block 6 can facilitate the connection between the cooling water tank 7 and the copper pipe 1.

[0020] In use, when the molten injection molding material enters the copper tube 1, the water pump 9 is started. The water pump 9 draws cooling water from the cooling water tank 7 into the inlet pipe 8. The cooling water in the inlet pipe 8 then enters the cooling copper tube 10. The cooling copper tube 10 is wound around the outer wall of the copper tube 1, and it absorbs the heat from the molten injection molding material inside the copper tube 1, thereby cooling the molten injection molding material in the copper tube 1 in a timely manner. This prevents degradation caused by excessively high temperature of the molten injection molding material inside the copper tube 1. Furthermore, by spirally winding the cooling copper tube 10 around the outer wall of the copper tube 1, the molten injection molding material inside the copper tube 1 can be cooled multiple times by absorbing heat, ensuring the timeliness and effectiveness of cooling the molten injection molding material inside the copper tube 1.

[0021] After the cooling copper pipe 10 absorbs the heat from the molten injection molding material in the copper pipe 1, the cooled water can enter the return water pipe 11. The cooled water in the return water pipe 11 will pass through several heat dissipation copper pipes 14 and then enter the cooling water tank 7. When the cooled water enters the cooling water tank 7 through several heat dissipation copper pipes 14, the cooling fan 13 is activated. The cooling fan 13 can blow air to cool the several heat dissipation copper pipes 14, thereby cooling the cooled water that has passed through the heat dissipation copper pipes 14. This can cool the cooled water after absorbing heat in time, and prevent the temperature of the cooled water entering the cooling water tank 7 from being too high, which would cause poor cooling of the molten injection molding material in the copper pipe 1.

[0022] Furthermore, the heat of the cooling water entering the cooling water tank 7 will be absorbed by the heat-conducting copper sheet 15, thereby cooling the cooling water in the cooling water tank 7 again. After absorbing the heat of the cooling water, the heat-conducting copper sheet 15 will dissipate the heat through the heat dissipation fins 16, ensuring that the heat-conducting copper sheet 15 continuously conducts heat and dissipates heat for the cooling water in the cooling water tank 7, thus ensuring the cooling effect of the cooling water in the cooling water tank 7.

[0023] When copper tube 1 is not in use, the residual molten injection molding material inside copper tube 1 will solidify after prolonged residence, making it difficult to clean the residual injection molding material from the inner wall of copper tube 1. At this time, the heat transfer oil can be heated by the electric heating installed in the cavity inside copper tube 1. After the heat transfer oil is heated, the residual solidified injection molding material on the inner wall of copper tube 1 can be heated to a molten state, which makes it easier to flow out of the residual injection molding material inside copper tube 1, facilitating the subsequent cleaning of the residual solidified injection molding material inside copper tube 1.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A feeding pipe structure for an injection molding machine, comprising a copper pipe (1), characterized in that, A cooling water tank (7) is installed on the outer wall of the copper pipe (1), and a cooling copper pipe (10) is wound around the outer wall of the copper pipe (1). The cooling water tank (7) is connected to the top of the cooling copper pipe (10) through the inlet pipe (8), and the bottom of the cooling copper pipe (10) is connected to the cooling water tank (7) through the return pipe (11). The copper tube (1) has a cavity inside, an electric heating wire is installed inside the cavity, and heat-conducting oil is placed inside the cavity.

2. The feeding pipe structure for an injection molding machine according to claim 1, characterized in that, The outer wall of the copper tube (1) is provided with a spiral groove (17), and the cooling copper tube (10) is located in the spiral groove (17).

3. The feeding pipe structure for an injection molding machine according to claim 1, characterized in that, The cooling water tank (7) is equipped with several heat-conducting copper plates (15). The ends of the heat-conducting copper plates (15) penetrate the cooling water tank (7) and extend to the outside of the cooling water tank (7). The part of the heat-conducting copper plates (15) located on the outside of the cooling water tank (7) is provided with several heat dissipation fins (16).

4. The feeding pipe structure for an injection molding machine according to claim 1, characterized in that, The middle section of the return water pipe (11) is connected to several heat dissipation copper pipes (14), and a cooling fan (13) is installed on the outer wall of the copper pipe (1). The cooling fan (13) is located on the side of several heat dissipation copper pipes (14).

5. The feeding pipe structure for an injection molding machine according to claim 4, characterized in that, The copper pipe (1) has an mounting plate (12) installed on its outer wall, and a cooling fan (13) is installed on the side of the mounting plate (12) away from the copper pipe (1).

6. The feeding pipe structure for an injection molding machine according to claim 1, characterized in that, A fixing plate (5) is installed on the outer wall of the copper pipe (1), and a fixing block (6) is installed on the side of the fixing plate (5) away from the copper pipe (1). The cooling water tank (7) is installed on the side of the fixing block (6) away from the copper pipe (1).

7. The feeding pipe structure for an injection molding machine according to claim 1, characterized in that, The copper pipe (1) is equipped with a connecting flange (2) at the top end. The connecting flange (2) has several connecting holes (3) in a ring shape. The bottom end of the copper pipe (1) is connected to a feeding nozzle (4). A water pump (9) is installed inside the water inlet pipe (8).

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