Injection device of die-casting machine

Abstract

The utility model belongs to the field of die-casting machines, and particularly relates to an injection device of a die-casting machine, which comprises an injection rod. The injection rod comprises an injection rod head and an injection rod body, one end of the injection rod body is detachably installed on the side edge of the injection rod head, a cooling cavity is formed in the injection rod head, a cavity is formed in the middle of the injection rod body and communicated with the cooling cavity, and a cooling assembly is installed at the end, away from the injection rod head, of the injection rod body. The cooling assembly comprises a connecting sleeve, the connecting sleeve is in threaded connection to the outer side of the end of the injection rod body, a rotating plate is installed at the end of the connecting sleeve, through holes are symmetrically formed in the two sides of the rotating plate, fixing pipes are fixedly installed on the outer sides of the through holes, and the rotating plate is rotationally connected with the connecting sleeve. According to the injection rod cooling device, the cooling assembly is arranged so that the injection rod can be cooled, the connecting hose of cooling water can be rapidly disassembled and assembled, and therefore the injection rod in equipment can be conveniently replaced and installed in the later period, and practicability is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of die-casting machines, in particular to an injection device of a die-casting machine. Background Art

[0002] A die-casting machine is a commonly used device in the forming technology field of the mechanical industry. It is an industrial machine that injects molten metal under pressure into a die-casting mold for cooling and forming, and obtains a solid metal casting after opening the mold.

[0003] The utility model with the publication number of CN220862688U discloses an injection device of a die-casting machine, which includes an injection rod, a hydraulic device for driving the injection rod to move, and a heat conduction box. An exchange heat component is arranged in the heat conduction box. A heat dissipation cavity is arranged in the injection rod, a heat conduction liquid is arranged in the heat dissipation cavity, a heat conduction tube group is arranged in the heat dissipation cavity, and both ends of the heat conduction tube group are communicated with the exchange heat component through a liquid inlet pipe and a liquid discharge pipe. For the injection device of the die-casting machine of the utility model, by arranging the heat dissipation cavity and the heat conduction tube group in the injection rod, the heat conducted by the molten metal to the injection rod is absorbed and transported to the heat conduction box, and the heat is quickly dissipated through the heat dissipation component in the heat conduction box, so as to realize the cooling of the injection rod.

[0004] However, when the injection rod of the above device is in use, the liquid inlet pipe and the liquid discharge pipe are fixedly connected to the injection rod, which makes it impossible to conveniently disassemble and replace the injection rod after long-term use, resulting in the problem of low practicability of the existing injection rod of the die-casting machine. Therefore, an injection device of a die-casting machine is proposed for the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve the problems put forward in the background art, the utility model proposes an injection device of a die-casting machine.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: an injection device of a die-casting machine described in the utility model includes an injection rod;

[0007] The injection rod includes an injection rod head and an injection rod body. One end of the injection rod body is detachably installed on the side of the injection rod head. A cooling cavity is arranged inside the injection rod head. A cavity is arranged in the middle of the injection rod body, and the cavity is communicated with the cooling cavity. A cooling component is installed at one end of the injection rod body far away from the injection rod head;

[0008] The cooling component includes a connecting sleeve. The connecting sleeve is threadedly connected to the outer side of the end of the injection rod body. A rotating plate is installed at the end of the connecting sleeve. Through holes are symmetrically arranged on both sides of the rotating plate. Fixed pipes are fixedly installed outside the through holes. The rotating plate is rotatably connected to the connecting sleeve.

[0009] Preferably, a fixed column is arranged in the middle of the cavity. Symmetrically and fixedly connected to the side wall of the fixed column are partition plates I, which are fixedly connected to the inner wall of the cavity of the injection rod body. The inner cavity of the injection rod body is divided into two chambers by the partition plates I and the fixed column. Symmetrically and fixedly connected to the inner wall of the connecting sleeve are partition plates II. The end of the fixed column penetrates through the middle opening of the rotating plate, and the end parts of the two partition plates II are respectively in contact with the side wall of the fixed column.

[0010] Preferably, an installation sleeve is arranged outside the fixed pipe. The end of the installation sleeve is threadedly connected to the outer wall of the fixed pipe. Fixedly connected to the position near the end inside the installation sleeve is a retaining ring I. Fixedly installed in the middle inside the installation sleeve is a retaining ring II. A sealing plate is movably installed between the retaining ring I and the retaining ring II. A spring I is fixedly installed between the sealing plate and the retaining ring II. There is a gap between the side of the sealing plate and the inner wall of the installation sleeve. The fixed pipe is adapted to the middle hole of the retaining ring I. A through groove is arranged at the end of the fixed pipe.

[0011] Preferably, fixedly connected to the side wall of the partition plate I is a fixing plate. Fixedly connected to the fixing plate is a sleeve rod. A plugging rod is movably installed in the middle of the sleeve rod. A spring II for resetting the plugging rod is fixedly installed inside the sleeve rod. The end of the plugging rod is round-headed and is adapted to the through hole.

[0012] Preferably, a hydraulic rod is threadedly connected to the middle of the end of the fixed column away from the injection rod head, and the hydraulic rod is fixedly connected to the telescopic end of the hydraulic device.

[0013] Preferably, the size of the sealing plate is larger than the size of the middle hole of the retaining ring I.

[0014] Preferably, a connecting head is rotatably connected to the side of the installation sleeve away from the rotating plate.

[0015] Preferably, the end of the injection rod body is threadedly connected to the middle of the side wall of the injection rod head.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. The utility model cools the injection rod by setting a cooling component. The cooling water in the cooling device enters the cavity and the cooling cavity through the fixed pipe on one side and is discharged from the fixed pipe on the other side. The cooling water entering the cooling cavity can exchange heat with the side wall of the injection rod head, having good heat conduction efficiency, so as to cool the injection rod head and ensure the stable operation of the injection rod head. And the inner cavity of the injection rod body is divided into two left and right chambers by partition one, partition two and fixed columns, and the two chambers correspond to the fixed pipes on both sides respectively. The cooling water entering from the fixed pipe on one side can move along one chamber all the way to the cooling cavity and then be discharged from the chamber and the fixed pipe on the other side. In this way, the cooling water in the cooling cavity can be replaced in time to ensure that the cooling water inside the cooling cavity always remains at a relatively low level and has good heat conduction efficiency.

[0018] 2. The utility model sets structures such as mounting sleeves, retaining rings one, retaining rings two, and sealing plates to connect the fixed pipes and the connecting hoses on the cooling device. When in use and it is necessary to connect the fixed pipes to the cooling device, connecting hoses are respectively fixedly installed at the water inlet end and the water outlet end of the cooling device. Then the mounting sleeve is installed at the end of the connecting hose. During installation, the fixed pipe is inserted into the middle of the mounting sleeve, so that the fixed pipe penetrates through the middle hole of the retaining ring one. The end of the fixed pipe pushes the sealing plate towards the inside of the mounting sleeve, and at this time the first spring is compressed. Then the mounting sleeve is rotated so that the end of the mounting sleeve is threadedly connected to the outer wall of the fixed pipe to connect the mounting sleeve and the fixed pipe together. At this time, the sealing plate is separated from the baffle one, and the through groove at the end of the fixed pipe moves between the retaining ring one and the retaining ring two to introduce the cooling water entering from the middle hole of the retaining ring two into the inner cavity of the injection rod body. When it is necessary to separate the mounting sleeve and the fixed pipe, the mounting sleeve is rotated in the reverse direction to disengage the mounting sleeve from the fixed pipe. Then under the rebounding action of the first spring, the sealing plate is pushed back to fit with the retaining ring one, thereby blocking the middle hole of the retaining ring one to prevent the cooling water in the connecting hose from leaking and causing waste, and preventing the cooling water from leaking to the ground and causing environmental pollution to the surrounding area. Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is the overall structure schematic diagram of Embodiment 1;

[0021] Figure 2 It is the partial structure cross-sectional view of Embodiment 1;

[0022] Figure 3 For the Figure 2 magnified schematic view of the structure at position A in Embodiment 1;

[0023] Figure 4 Partial cross-sectional view of another angle of the structure in Embodiment 1;

[0024] Figure 5 For the Figure 4 magnified schematic view of the structure at position B in

[0025] In the figure: 1, injection rod head; 2, injection rod body; 21, fixed column; 22, partition plate 1; 3, cooling component; 31, connecting sleeve; 32, rotating plate; 33, partition plate 2; 34, through hole; 35, fixed pipe; 36, mounting sleeve; 37, retaining ring 1; 38, through groove; 39, sealing plate; 310, retaining ring 2; 311, spring 1; 312, fixing plate; 313, sleeve rod; 314, plugging rod; 315, spring 2; 316, connecting head; 4, hydraulic rod. Specific embodiments

[0026] 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 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 belong to the scope of protection of the present utility model.

[0027] Embodiment 1

[0028] Please refer to Figures 1-5 as shown, a die-casting machine injection device, including an injection rod;

[0029] The injection rod includes an injection rod head 1 and an injection rod body 2. One end of the injection rod body 2 is detachably installed on the side of the injection rod head 1. A cooling cavity is provided inside the injection rod head 1. A cavity is provided in the middle of the injection rod body 2, and the cavity is communicated with the cooling cavity. A cooling component 3 is installed at the end of the injection rod body 2 away from the injection rod head 1;

[0030] The cooling component 3 includes a connecting sleeve 31. The connecting sleeve 31 is threadedly connected to the outer side of the end of the injection rod body 2. A rotating plate 32 is installed at the end of the connecting sleeve 31. Through holes 34 are symmetrically opened on both sides of the rotating plate 32. A fixed pipe 35 is fixedly installed outside the through holes 34. The rotating plate 32 is rotatably connected to the connecting sleeve 31;

[0031] During operation, one fixed pipe 35 is connected to the water outlet end of the cooling device, and the other fixed pipe 35 is connected to the water inlet end of the cooling device. The cooling water in the cooling device enters the cavity and the cooling chamber through one fixed pipe 35, and is discharged from the other fixed pipe 35. The cooling water entering the cooling chamber can exchange heat with the side wall of the injection plunger head 1, having good heat conduction efficiency, so as to cool down the injection plunger head 1 and ensure the stable operation of the injection plunger head 1.

[0032] A fixed column 21 is arranged in the middle of the cavity. Symmetrically fixed to the side wall of the fixed column 21 are partition plates one 22, and the partition plates one 22 are fixedly connected to the inner wall of the cavity of the injection plunger body 2. Through the partition plates one 22 and the fixed column 21, the inner cavity of the injection plunger body 2 is divided into two chambers. Symmetrically fixed to the inner wall of the connecting sleeve 31 are partition plates two 33. The end of the fixed column 21 passes through the middle opening of the rotating plate 32, and the end parts of the two partition plates two 33 are respectively in contact with the side wall of the fixed column 21. During operation, when the connecting sleeve 31 rotates and is inserted into the end of the injection plunger body 2, the partition plates two 33 inside the connecting sleeve 31 are exactly completely aligned with the partition plates one 22. At this time, through the partition plates one 22, the partition plates two 33 and the fixed column 21, the inner cavity of the injection plunger body 2 is divided into left and right two chambers, and the two chambers respectively correspond to the fixed pipes 35 on both sides. The cooling water entering from one fixed pipe 35 can move along one chamber all the way to the cooling chamber, and then be discharged from the other chamber and the fixed pipe 35. In this way, the cooling water in the cooling chamber can be replaced in time, so as to ensure that the cooling water inside the cooling chamber always remains at a relatively low level of stability, making it have good heat conduction efficiency.

[0033] An installation sleeve 36 is provided outside the fixed pipe 35. The end of the installation sleeve 36 is threadedly connected to the outer wall of the fixed pipe 35. A first retaining ring 37 is fixedly connected near the end inside the installation sleeve 36. A second retaining ring 310 is fixedly installed in the middle inside the installation sleeve 36. A sealing plate 39 is movably installed between the first retaining ring 37 and the second retaining ring 310. A first spring 311 is fixedly installed between the sealing plate 39 and the second retaining ring 310. There is a gap between the side of the sealing plate 39 and the inner wall of the installation sleeve 36. The fixed pipe 35 is adapted to the middle hole of the first retaining ring 37. A through groove 38 is provided at the end of the fixed pipe 35; during operation, when it is necessary to connect the fixed pipe 35 to the cooling device, connection hoses are fixedly installed at the water inlet end and the water outlet end of the cooling device respectively. Then, the installation sleeve 36 is installed at the end of the connection hose. During installation, the fixed pipe 35 is inserted into the middle of the installation sleeve 36, so that the fixed pipe 35 passes through the middle hole of the first retaining ring 37. The end of the fixed pipe 35 pushes the sealing plate 39 to move towards the inside of the installation sleeve 36. At this time, the first spring 311 is compressed. Then, the installation sleeve 36 is rotated so that the end of the installation sleeve 36 is threadedly connected to the outer wall of the fixed pipe 35, so as to connect the installation sleeve 36 and the fixed pipe 35 together. At this time, the sealing plate 39 is separated from the first baffle. The through groove 38 at the end of the fixed pipe 35 moves between the first retaining ring 37 and the second retaining ring 310, so as to introduce the cooling water entering from the middle hole of the second retaining ring 310 into the inner cavity of the injection rod body 2; when it is necessary to separate the installation sleeve 36 and the fixed pipe 35, the installation sleeve 36 is rotated in the reverse direction so that the installation sleeve 36 is detached from the fixed pipe 35. Then, under the rebounding action of the first spring 311, the sealing plate 39 is pushed to reset, so that the sealing plate 39 fits with the first retaining ring 37, thereby blocking the middle hole of the first retaining ring 37, preventing the cooling water in the connection hose from leaking and causing waste, and preventing the cooling water from leaking to the ground and causing environmental pollution to the surrounding area.

[0034] A fixing plate 312 is fixedly connected to the side wall of the first partition plate 22. A sleeve rod 313 is fixedly connected to the fixing plate 312. A plugging rod 314 is movably installed in the middle of the sleeve rod 313. A second spring 315 for resetting the plugging rod 314 is fixedly installed inside the sleeve rod 313. The end of the plugging rod 314 is round-headed. The plugging rod 314 is adapted to the through hole 34; during operation, the rotating plate 32 is rotated so that the through hole 34 on the rotating plate 32 is aligned with the plugging rod 314. At this time, under the pushing action of the second spring 315, the round head end of the plugging rod 314 is inserted into the through hole 34, thereby blocking the through hole 34. Then, the installation sleeve 36 and the fixed pipe 35 are separated. At this time, the cooling water in the inner cavity of the injection rod body 2 will not leak from the through hole 34, further preventing the cooling water from leaking.

[0035] A hydraulic rod 4 is threadedly connected to the middle of the end of the fixed column 21 away from the injection rod head 1, and the hydraulic rod 4 is fixedly connected to the telescopic end of the hydraulic device; during operation, the hydraulic rod 4 is threadedly connected to the fixed column 21 to facilitate the quick disassembly and assembly of the hydraulic rod 4.

[0036] The size of the sealing plate 39 is larger than the size of the middle hole of the first retaining ring 37; during operation, it is used to completely block the middle hole of the first retaining ring 37 through the sealing plate 39.

[0037] A connector 316 is rotatably connected to the side of the mounting sleeve 36 away from the rotating plate 32; during operation, it is used to install the mounting sleeve 36 on the end of the connecting hose through the connector 316, and enables the mounting sleeve 36 and the connecting hose to rotate relative to each other, so as to rotatably install the mounting sleeve 36 on the outside of the fixed pipe 35.

[0038] Embodiment 2

[0039] Please refer to Figure 2 As shown, compared with Embodiment 1, as another implementation manner of the present invention, the end of the injection rod body 2 is threadedly connected to the middle of the side wall of the injection rod head 1; during operation, it is used to quickly separate the injection rod body 2 and the injection rod head 1 to replace damaged parts in a timely manner.

[0040] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A shot sleeve device of a die-casting machine, characterized in that: It includes a shot sleeve rod; The shot sleeve rod includes a shot sleeve rod head (1) and a shot sleeve rod body (2). One end of the shot sleeve rod body (2) is detachably installed on the side of the shot sleeve rod head (1). A cooling cavity is provided inside the shot sleeve rod head (1). A cavity is arranged in the middle of the shot sleeve rod body (2), and the cavity is communicated with the cooling cavity. A cooling component (3) is installed at one end of the shot sleeve rod body (2) away from the shot sleeve rod head (1); The cooling component (3) includes a connecting sleeve (31). The connecting sleeve (31) is threadedly connected to the outer side of the end of the shot sleeve rod body (2). A rotating plate (32) is installed at the end of the connecting sleeve (31). Through holes (34) are symmetrically opened on both sides of the rotating plate (32). A fixed pipe (35) is fixedly installed on the outer side of the through hole (34). The rotating plate (32) is rotatably connected to the connecting sleeve (31).

2. The injection device of a die-casting machine according to claim 1, characterized in that: A fixed column (21) is arranged in the middle of the cavity. Partition plates one (22) are symmetrically and fixedly connected to the side wall of the fixed column (21). The partition plates one (22) are fixedly connected to the inner wall of the cavity of the shot sleeve rod body (2). The inner cavity of the shot sleeve rod body (2) is divided into two chambers by the partition plates one (22) and the fixed column (21). Partition plates two (33) are symmetrically and fixedly connected to the inner wall of the connecting sleeve (31). The end of the fixed column (21) penetrates through the middle opening of the rotating plate (32), and the end parts of the two partition plates two (33) are respectively attached to the side wall of the fixed column (21).

3. The injection device of a die-casting machine according to claim 2, characterized in that: An installation sleeve (36) is arranged on the outer side of the fixed pipe (35). The end of the installation sleeve (36) is threadedly connected to the outer wall of the fixed pipe (35). A retaining ring one (37) is fixedly connected to the position near the end inside the installation sleeve (36). A retaining ring two (310) is fixedly installed in the middle of the installation sleeve (36). A sealing plate (39) is movably installed between the retaining ring one (37) and the retaining ring two (310). A spring one (311) is fixedly installed between the sealing plate (39) and the retaining ring two (310). There is a gap between the side of the sealing plate (39) and the inner wall of the installation sleeve (36). The fixed pipe (35) is adapted to the middle hole of the retaining ring one (37). A through groove (38) is arranged at the end of the fixed pipe (35).

4. The injection device of a die-casting machine according to claim 3, characterized in that: A fixing plate (312) is fixedly connected to the side wall of the partition plate one (22). A sleeve rod (313) is fixedly connected to the fixing plate (312). A plugging rod (314) is movably installed in the middle of the sleeve rod (313). A spring two (315) for resetting the plugging rod (314) is fixedly installed inside the sleeve rod (313). The end of the plugging rod (314) is round-headed, and the plugging rod (314) is adapted to the through hole (34).

5. The injection device of a die-casting machine according to claim 4, characterized in that: A hydraulic rod (4) is threadedly connected to the middle of the end of the fixed column (21) away from the shot sleeve rod head (1). The hydraulic rod (4) is fixedly connected to the telescopic end of the hydraulic device.

6. The injection device of a die-casting machine according to claim 5, characterized in that: The size of the sealing plate (39) is larger than the size of the middle hole of the retaining ring one (37).

7. The injection device of a die-casting machine according to claim 6, characterized in that: A connecting head (316) is rotatably connected to the side of the installation sleeve (36) away from the rotating plate (32).

8. The injection device of a die-casting machine according to claim 7, characterized in that: The end of the shot sleeve rod body (2) is threadedly connected to the middle of the side wall of the shot sleeve rod head (1).

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