Cooling structure of injection charging barrel

Abstract

According to the technical scheme, the cooling structure of the injection charging barrel is characterized in that the cooling structure comprises an injection charging barrel body, a pressing plate is arranged on the side face of the injection charging barrel body, a sleeve is connected into the injection charging barrel body in a sliding mode, a cavity is formed in the injection charging barrel body, two guide pipes are both communicated with the cavity, and the two guide pipes are communicated with the sleeve. The injection material barrel comprises an injection material barrel body 1 and a sleeve 3, feed ports are formed in the injection material body, sealing plugs are connected into the two feed ports in a sliding mode, cooling water can be added into the cavity through the two pressing pipes, the injection material barrel can have the good cooling effect through the cooling water in the cavity, cooling water heat preservation oil does not make direct contact with the injection material barrel body 1 and the sleeve 3, and the cooling water heat preservation oil does not make direct contact with the injection material barrel body 1 and the sleeve 3. According to the injection charging barrel, corrosion of the injection charging barrel body 1 or the sleeve 3 can be effectively prevented, corrosion and water leakage caused by long-time use are avoided, the problem of air holes caused by too high water content of a die casting can be effectively prevented, and the safety in the magnesium alloy die casting process can also be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection barrels, and particularly relates to a cooling structure of an injection barrel. Background Art

[0002] A die-casting machine is a series of industrial casting machines that inject molten metal under pressure into a mold for cooling and forming, and obtain solid metal castings after the mold is opened. It is usually divided into two categories: hot-chamber die-casting machines and cold-chamber die-casting machines. The pressure is provided by a randomly configured hydraulic system. Passing cooling water or heat-preserving oil in the barrel can effectively extend the service life of the barrel and prevent the barrel from deforming prematurely. At the same time, it can effectively increase the qualified rate of die-cast products, adjust the temperature distribution of the inner hole of the barrel, and prevent the temperature of the aluminum liquid from being too high or too low before entering the mold.

[0003] In the prior art, the feeding barrel of a cold-chamber die-casting machine is of an integral structure, that is, the feeding port and the barrel body are an inseparable integral component. In addition, the barrel is also the necessary passage for transferring the alloy melt into the pressure chamber. In the die-casting machine, the injection rod is driven by a piston in the injection cylinder to perform the injection action. The front end of the injection rod is connected to the injection head, and the injection head is used to inject high-temperature metal liquid. The injection head is in direct contact with the high-temperature metal liquid, so the temperature of the injection head will be very high, and the temperature of the injection head will be conducted to the injection rod, resulting in an increase in the temperature of the injection rod. Therefore, it is necessary to cool the injection rod and the injection head, and the heat dissipation and cooling at the front end of the injection head and the injection rod are the core of this cooling treatment and also the source of heat.

[0004] In the prior art, cooling circulation holes or open water grooves are directly machined on the barrel matrix, and some sleeve barrels also try to drill circulation water holes or machine water grooves directly on the sleeve to pass cooling water or heat-preserving oil to achieve the purpose of cooling or heat preservation. After long-term use, the matrix of the barrel will crack or deform due to long-term heating, alternating heat and cold, inappropriate material selection, inappropriate material heat treatment, etc. Sometimes the cracks or deformation lines will be connected to the water channels opened on the barrel matrix, resulting in the outflow of the cooling water or heat-preserving oil passing through the matrix. Some flow to the outer circle of the barrel, and some flow to the inner hole of the barrel. Once water or oil is encountered during the pressing production process of aluminum alloy and magnesium alloy, it will directly cause the unqualified die-cast products. Especially for magnesium alloy, there is a risk of fire and explosion once it encounters water. Content of the Utility Model

[0005] Aiming at the problems mentioned in the background art, the purpose of the utility model is to provide a cooling structure of an injection barrel to solve the problems mentioned in the background art.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] Cooling structure of injection barrel, including the injection barrel body, a pressing plate is arranged on the side of the injection barrel body, a sleeve is slidably connected inside the injection barrel body, a cavity is opened inside the injection barrel body, two conduits are fixedly connected to the side of the injection barrel body, both of the two conduits are communicated with the cavity, a feed port is opened on the injection barrel body, and a sealing plug is slidably connected in each of the two feed ports; a copper tube groove is opened on the inner wall of the sleeve, a copper tube is slidably connected in the copper tube groove, water holes are opened on the copper tube, a threaded hole is opened on the side of the injection barrel body, and the injection barrel body is threadedly connected with the pressing plate through the threaded hole.

[0008] By adopting the above technical solution, a cavity is opened inside the injection barrel body, and two conduits are fixedly connected to the side of the injection barrel body. Relying on the two conduits, cooling water can be added to the inside of the cavity. Relying on the cooling water inside the cavity, the injection barrel can have a good cooling effect. By fixedly connecting two conduits to the side of the injection barrel body, the two conduits can be used to respectively introduce and discharge the cooling water, which is convenient for replacing the cooling water in the cavity.

[0009] Preferably, both of the two sealing plugs are rubber sealing plugs.

[0010] By adopting the above technical solution, both of the two sealing plugs are made of rubber, which can make the sealing plugs have a good sealing effect.

[0011] Preferably, the two conduits are respectively arranged at the upper end and the lower end of the side of the injection barrel body.

[0012] By adopting the above technical solution, by arranging the two conduits at the upper end and the lower end, it is convenient to add and discharge the cooling water.

[0013] Preferably, a transparent observation ring is arranged on the side of the injection barrel body.

[0014] By adopting the above technical solution, the setting of the transparent observation ring can facilitate the observation of the cooling water situation in the cavity inside the injection barrel body.

[0015] Preferably, a feed ring is slidably connected in the feed port, and an auxiliary feed pipe is arranged on the feed ring.

[0016] By adopting the above technical solution, the setting of the feed ring and the auxiliary feed pipe can facilitate the feeding.

[0017] Preferably, four guide rods are opened on the feed ring, four guide holes are fixedly connected to the bottom of the auxiliary feed pipe, and the four guide rods are respectively slidably connected in the four guide holes.

[0018] By adopting the above technical solution, the auxiliary feeding pipe can be installed by sliding four guide rods in four guide holes, which has a good guiding effect.

[0019] Preferably, a chamfer is provided at the top of the feeding ring.

[0020] By adopting the above technical solution, the setting of the chamfer can reduce the possibility of material accumulation on the surface of the feeding ring and facilitate the guiding and sliding of the material.

[0021] Preferably, the auxiliary feeding pipe is provided as a frustum-shaped auxiliary feeding pipe.

[0022] By adopting the above technical solution, by setting the auxiliary feeding pipe as a frustum-shaped structure, it is convenient to add materials into the auxiliary feeding pipe.

[0023] In summary, the main beneficial effects of the present utility model are as follows:

[0024] First, a cavity is provided inside the injection barrel body of the present utility model, and two conduits are fixedly connected to the side of the injection barrel body. By relying on the two conduits, cooling water can be added to the inside of the cavity. By relying on the cooling water inside the cavity, the injection barrel can have a good cooling effect;

[0025] Second, two conduits are fixedly connected to the side of the injection barrel body of the present utility model. By relying on the two conduits, the cooling water can be respectively introduced and discharged, which is convenient for replacing the cooling water in the cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the structural schematic diagram of the present utility model;

[0027] Figure 2 is one of the disassembled structural schematic diagrams of the present utility model;

[0028] Figure 3 is the other disassembled structural schematic diagram of the present utility model;

[0029] Figure 4 is the structural schematic diagram of the injection barrel body of the present utility model;

[0030] Figure 5 is Figure 2 the enlarged schematic diagram at A in

[0031] Figure 6 is Figure 2 the enlarged schematic diagram at B in

[0032] Figure 7 is Figure 3 the enlarged schematic diagram at C in

[0033] Figure 8 Yes Figure 4 It is an enlarged schematic view of part D in

[0034] Figure 9 It is a schematic connection diagram of the injection barrel body, sleeve and copper tube of the present utility model.

[0035] Reference numerals: 1, injection barrel body; 2, pressing plate; 3, sleeve; 4, conduit; 5, cavity; 6, feed inlet; 7, sealing plug; 8, transparent observation ring; 9, feed ring; 10, auxiliary feed pipe; 11, guide rod; 12, guide hole; 13, chamfer; 14, copper tube groove; 15, copper tube; 16, water hole; 17, threaded hole. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0037] Embodiment 1

[0038] Refer to Figures 1-8 , the cooling structure of the injection barrel includes an injection barrel body 1, a pressing plate 2 is arranged on the side surface of the injection barrel body 1, a sleeve 3 is slidably connected inside the injection barrel body 1, a cavity 5 is opened inside the injection barrel body 1, two conduits 4 are fixedly connected to the side surface of the injection barrel body 1, and both two conduits 4 are communicated with the cavity 5. A feed inlet 6 is opened on the injection barrel body 1, and a sealing plug 7 is slidably connected in each of the two feed inlets 6. By opening a cavity 5 inside the injection barrel body 1 and fixedly connecting two conduits 4 to the side surface of the injection barrel body 1, cooling water can be added to the inside of the cavity 5 by relying on the two conduits 4. Relying on the cooling water inside the cavity 5, the injection barrel can have a good cooling effect. By fixedly connecting two conduits 4 to the side surface of the injection barrel body 1, the cooling water can be respectively introduced and discharged by relying on the two conduits 4, which is convenient for replacing the cooling water in the cavity 5.

[0039] Refer to Figure 6 , both two sealing plugs 7 are set as rubber sealing plugs, and both two sealing plugs 7 are made of rubber material, which can make the sealing plugs 7 have a good sealing effect.

[0040] Refer to Figure 4 , the two conduits 4 are respectively arranged at the upper end and the lower end of the side surface of the injection barrel body 1. By arranging the two conduits 4 at the upper end and the lower end, it is convenient to add and discharge the cooling.

[0041] Reference Figure 6 and Figure 8 On the side of the injection barrel body 1, a transparent observation ring 8 is provided. The setting of the transparent observation ring 8 can facilitate the observation of the cooling water in the inner cavity 5 of the injection barrel body 1.

[0042] Reference Figure 2 In the feed inlet 6, a feed ring 9 is slidably connected. An auxiliary feed pipe 10 is provided on the feed ring 9. The settings of the feed ring 9 and the auxiliary feed pipe 10 can facilitate the feeding.

[0043] Reference Figure 2 and Figure 3 Four guide rods 11 are provided on the feed ring 9. Four guide holes 12 are fixedly connected to the bottom of the auxiliary feed pipe 10. The four guide rods 11 are respectively slidably connected in the four guide holes 12. By sliding the four guide rods 11 in the four guide holes 12, the auxiliary feed pipe 10 can be installed, having a good guiding effect.

[0044] Reference Figure 5 On the top of the feed ring 9, a chamfer 13 is provided. The setting of the chamfer 13 can reduce the possibility of material accumulation on the surface of the feed ring 9 and facilitate the guiding and sliding of the material.

[0045] Reference Figure 2 and Figure 3 The auxiliary feed pipe 10 is set as a frustum-shaped auxiliary feed pipe. By setting the auxiliary feed pipe 10 as a frustum-shaped structure, it is convenient to add materials into the auxiliary feed pipe 10.

[0046] Embodiment 2

[0047] Reference Figure 9 The cooling structure of the injection barrel includes an injection barrel body 1. A sleeve 3 is slidably connected inside the injection barrel body 1. A copper pipe groove 14 is provided on the inner wall of the sleeve 3. A copper pipe 15 is slidably connected in the copper pipe groove 14. Water holes 16 are provided on the copper pipe 15. A threaded hole 17 is provided on the side of the injection barrel body 1. The injection barrel body 1 is threadedly connected with a pressing plate 2 through the threaded hole 17.

[0048] Principle of use and advantages: During use, cooling water is introduced into the interior of the cavity 5 through the upper conduit 4, and the cooling water inside the cavity 5 can be discharged through the lower conduit 4. Since a cavity 5 is provided inside the injection barrel body 1, two conduits 4 are fixedly connected to the side of the injection barrel body 1. By relying on the two pressure tubes, cooling water can be added to the interior of the cavity 5. With the cooling water inside the cavity 5, the injection barrel can have a good cooling effect. By relying on the two conduits 4, the cooling water can be introduced and discharged respectively, facilitating the replacement of the cooling water inside the cavity 5. By relying on the two conduits 4, cooling water can be added to the interior of the cavity 5. With the cooling water inside the cavity 5, the injection barrel can have a good cooling effect. When guiding materials, the feeding ring 9 is slidably connected to the feeding port 6, and the auxiliary feeding tube 10 is installed by sliding on four guide rods 11 in four guide holes 12, enabling the installation and disassembly of the auxiliary feeding tube 10, and the auxiliary feeding tube 10 can be used for auxiliary material guiding.

[0049] Cooling water or heat-insulating oil flows inside the copper tube 15. Even if the barrel cracks or the like, there will be no leakage or seepage of water or oil. The inlet and outlet of the cooling water are both the copper tube 15 and are integrally structured with the copper tube 15 on the sleeve 3. The cooling water and heat-insulating oil do not directly contact the injection barrel body 1 and the sleeve 3, which can effectively prevent the corrosion of the injection barrel body 1 or the sleeve 3, avoid corrosion and water leakage caused by long-term use, effectively prevent the porosity problem of die-castings due to too high water content, and can also improve the safety during the magnesium alloy die-casting process. The pressing plate 2 serves to prevent the sleeve 3 from moving or loosening and falling off.

[0050] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling structure for an injection barrel, comprising an injection barrel body (1), characterized in that: A pressure plate (2) is arranged on the side of the injection barrel body (1), a sleeve (3) is slidably connected to the interior of the injection barrel body (1), a cavity (5) is provided inside the injection barrel body (1), two conduits (4) are fixedly connected to the side of the injection barrel body (1), both of the two conduits (4) are connected to the cavity (5), a feed port (6) is provided on the injection barrel body (1), and sealing plugs (7) are slidably connected to the two feed ports (6); a copper tube groove (14) is provided on the inner wall of the sleeve (3), a copper tube (15) is slidably connected to the copper tube groove (14), and a water hole (16) is provided on the copper tube (15); a threaded hole (17) is provided on the side of the injection barrel body (1), and the injection barrel body (1) is threadedly connected to the pressure plate (2) through the threaded hole (17).

2. The cooling structure of the injection barrel according to claim 1, characterized in that: The two sealing plugs (7) are both configured as rubber sealing plugs.

3. The cooling structure of the injection barrel according to claim 1, characterized in that: The two conduits (4) are respectively arranged at the upper end and the lower end of the side surface of the injection barrel body (1).

4. The cooling structure of the injection barrel according to claim 1, characterized in that: A transparent observation ring (8) is provided on the side of the injection barrel body (1).

5. The cooling structure of the injection barrel according to claim 1, characterized in that: A feed ring (9) is slidably connected in the feed port (6), and an auxiliary feed pipe (10) is arranged on the feed ring (9).

6. The cooling structure of the injection barrel according to claim 5, characterized in that: The feed ring (9) is provided with four guide rods (11), the bottom of the auxiliary feed pipe (10) is fixedly connected with four guide holes (12), and the four guide rods (11) are slidably connected in the four guide holes (12) respectively.

7. The cooling structure of the injection barrel according to claim 6, characterized in that: The top of the feed ring (9) is provided with a chamfer (13).

8. The cooling structure of the injection barrel according to claim 7, characterized in that: The auxiliary feeding pipe (10) is configured as a truncated cone-shaped auxiliary feeding pipe.

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