Spraying structure at bottom of sliding block of die-casting cylinder die

Abstract

The utility model relates to a die-casting cylinder die sliding block bottom spraying structure which comprises a die frame, a die core, a sprue spreader and a cylinder hole sliding block, the die core, the sprue spreader and the cylinder hole sliding block are arranged on the die frame, the die core is provided with a cavity, and the cylinder hole sliding block is driven by a driving mechanism connected with the cylinder hole sliding block to enter and exit from the cavity. Spraying point sprayers spraying upwards are arranged at the positions, corresponding to the cylinder hole sliding block extraction cavities, of the mold core and the mold frame correspondingly, and inlets in the lower ends of the two spraying point sprayers are connected to a die casting machine release agent system through runners correspondingly. The spraying point sprayers spraying upwards are respectively arranged on the mold core and the mold frame corresponding to the positions where the cylinder hole sliding block is drawn out of the mold cavity, so that a release agent can be effectively sprayed on the bottom position of the cylinder hole sliding block, the bad strain of a cylinder hole is well improved, the reject ratio is reduced, and the casting cost of the cylinder is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to die casting cylinder mould technical field, concretely relates to a die casting cylinder mould sliding block bottom spraying structure. BACKGROUND

[0002] In the production process of the garden die casting cylinder product, the inner wall of the cylinder bore is easy to stick aluminum and be damaged, the bad rate of the appearance of the blank is 5%~10%, which greatly increases the casting cost. Through the inspection, it is found that the damaged position mainly concentrates in the bottom of the cylinder bore sliding block, the position is blocked by the mold core, the die casting release agent is not sprayed in place, the local temperature is high, aluminum is easy to stick, and the continuous production causes the local damage and the lack of meat of the product. SUMMARY

[0003] The utility model aims at overcoming the prior art's insufficient, provides a die casting cylinder mould sliding block bottom spraying structure.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A die casting cylinder mould sliding block bottom spraying structure, including the mould frame and being located on the mould frame the mold core, the shunt cone and the cylinder bore sliding block, the mold core has the cavity, the cylinder bore sliding block is driven by the drive mechanism connected to the cavity, the position of the mold core and the mould frame that the cylinder bore sliding block is extracted from the cavity is equipped with the spray point spray head that sprays upwards respectively, and the inlet of the lower end of two spray point spray heads is connected to the die casting machine release agent system through the flow channel respectively.

[0006] Further, two spray point spray heads are fixed on the mold core and the mould frame through threaded connection respectively.

[0007] Further, the flow channel connected to the inlet of the lower end of two spray point spray heads is located inside the mold core and the mould frame.

[0008] The utility model adopts the above technical scheme, through the position of the mold core and the mould frame that the cylinder bore sliding block is extracted from the cavity is equipped with the spray point spray head that sprays upwards respectively, can effectively spray the release agent to the bottom position of the cylinder bore sliding block, the cylinder bore damage is improved well, and the bad rate is reduced, and the casting cost of the cylinder is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0009] The utility model is further explained in detail in the following combining with the specific embodiment and the drawing:

[0010] Fig. 1 It is the front view cross section schematic view of the utility model;

[0011] Fig. 2 It is the plan view of the utility model. DETAILED DESCRIPTION

[0012] The garden cylinder is high pressure die casting, and the aluminum liquid fills the whole cavity through the divergent cone 3 cone position by the injection punch of the die casting machine in the die casting process. The aluminum liquid is washed by the slide block in the filling process, and the overall temperature of the slide block is high. At the same time, the slide block of the product of this type is large in diameter and long, and the draft angle is small (about 0.5°), so it is easy to be pulled and damaged. Therefore, the slide block needs to be cooled by the cooling water system and sprayed by the mold release agent of the die casting machine to keep demolding. However, the bottom position of the cylinder hole slide block cannot be sprayed, the slide block has no mold release agent attached, and the product is easy to be pulled and damaged.

[0013] In order to improve the defect, two sprays are arranged at the bottom of the cylinder hole slide block of the mold to make up for the problem of insufficient spraying. Specifically, as shown in Figs. 1-2 The utility model discloses a die casting cylinder mold slide block bottom spray structure, including die frame 1 and being located on die frame 1 mould core 2, divergent cone 3 and cylinder hole slide block 4, mould core 2 has cavity, and cylinder hole slide block 4 is driven in and out cavity by drive mechanism connected to it, and the position of mould core 2 and die frame 1 is respectively equipped with the spray point spray head 5 of upward injection corresponding to the cylinder hole slide block 4 extraction cavity, and the inlet of the lower end of two spray point spray heads 5 is connected to the die casting machine mold release agent system through flow channel 6 respectively.

[0014] Among them, two spray point spray heads 5 are fixed on mould core 2 and die frame 1 respectively through threaded connection. The flow channel 6 connected to the inlet of the lower end of two spray point spray heads 5 is located inside mould core 2 and die frame 1.

[0015] In the utility model, by being equipped with the spray point spray head 5 of upward injection corresponding to the cylinder hole slide block 4 extraction cavity position on mould core 2 and die frame 1 respectively, the bottom position of cylinder hole slide block 4 can be effectively sprayed with mold release agent, and the cylinder hole pulling damage defect is improved well, the defective rate is reduced, and the casting cost of the cylinder is greatly reduced.

[0016] The specific embodiment of the utility model is described above, but those skilled in the art should understand that this is only an example, and those skilled in the art can make various changes or modifications to this embodiment without departing from the principles and essence of the utility model, but these changes and modifications all fall within the protection scope of the utility model.

Claims

1. A bottom spray structure for a die-casting cylinder mold slider, comprising a mold frame and a mold core, a flow divider cone, and a cylinder bore slider disposed on the mold frame, wherein the mold core has a cavity, and the cylinder bore slider is driven into and out of the cavity by a drive mechanism connected thereto, characterized in that: The mold core and the mold frame are respectively provided with upward spraying spray point nozzles at positions corresponding to the cavity of the slider extracted from the cylinder hole.

2. A die-cast cylinder mold slide block bottom spray structure according to claim 1, characterized by: The two spray point nozzles are respectively fixed on the mold core and the mold frame through threaded connection.

3. A die-cast cylinder mold slide block bottom spray structure according to claim 1, characterized by: The flow channels connected to the lower inlets of the two spray point nozzles are located inside the mold core and the mold frame.

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