Snap ring punch for die-casting machine

Abstract

The utility model relates to a snap ring punch for a die-casting machine, which comprises a punch body, a pressing end is fixedly arranged at the top of the punch body, a connecting end is arranged at the bottom of the punch body, a cooling cavity is arranged in the punch body, a through hole is arranged in the connecting end, the through hole is communicated with the cooling cavity, a first sealing component is arranged at the pressing end, and a second sealing component is arranged at the connecting end. The first sealing assembly is arranged on the punch body, the second sealing assembly is arranged on the punch body, and the first sealing assembly and the second sealing assembly are both used for sealing the charging barrel and the punch body, so that the sealing performance between the punch body and the charging barrel is improved, molten aluminum can fully enter a die, a product is fuller, meanwhile, the whole punch is prevented from being replaced, and the production cost is reduced. Machining cost is reduced, and practicability of the punch is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting machine equipment, in particular to a clamping ring punch for a die-casting machine. Background Art

[0002] The die-casting machine is a kind of metal casting equipment that squeezes aluminum liquid into the mold cavity at a certain pressure and speed through a punch under pressure to cool and form the product, so that the product molding meets the design and use requirements.

[0003] At present, the Chinese patent with the authorization publication number CN204276863U discloses a die-casting punch, including a cylindrical punch body and a connecting piece. A spiral oil suction groove is provided on the outer circumferential surface of the punch body. Before die-casting, the spiral oil suction groove can store lubricating oil. During the whole die-casting process, the lubricating oil in the groove can be continuously infiltrated into the pressure chamber, with good lubrication effect, ensuring smooth movement between the punch and the pressure chamber, and indirectly improving product quality. However, the punch body is easily worn during the die-casting process and has poor sealing. At the same time, the entire punch needs to be replaced during replacement, which increases the processing cost and has poor practicality. Utility Model Content

[0004] The purpose of the utility model is to provide a clamping ring punch for a die-casting machine in view of the deficiencies in the prior art. The clamping ring punch for the die-casting machine increases the sealing between the punch and the barrel, allowing the aluminum liquid to fully enter the interior of the mold, making the product fuller, while avoiding the need to replace the entire punch, reducing processing costs and improving the practicality of the punch.

[0005] The technical solutions of the utility model are as follows:

[0006] A retaining ring punch for a die-casting machine comprises a punch body, a material pressing end is fixedly arranged on the top of the punch body, a connecting end is arranged on the bottom, a cooling cavity is opened in the punch body, a through hole is opened in the connecting end, the through hole is connected with the cooling cavity, a first sealing component is arranged on the material pressing end, and a second sealing component is arranged on the punch body, and the first sealing component and the second sealing component are both used to seal between a barrel and the punch body.

[0007] As a preference, the first sealing assembly comprises a clamping ring annularly mounted on the pressing end and a first sealing groove formed on the clamping ring.

[0008] Preferably, the second sealing assembly comprises a first clamping ring annularly mounted in the middle of the punch body, a second clamping ring annularly mounted in the middle of the punch body, and a second sealing groove formed on the first clamping ring and the second clamping ring.

[0009] As a preference, a boss is fixedly provided on the top of the pressing end.

[0010] Preferably, a first internal thread is provided on the inner wall of the bottom of the punch body.

[0011] As another preferred embodiment, the top of the connecting end is provided with an external thread, and the inner wall thereof is provided with a second internal thread, and the external thread is adapted to the first internal thread.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a first sealing component. During die-casting, the clamping ring expands due to heat and can automatically adjust its size according to the gap between the punch body and the barrel, so that the clamping ring fits the inner wall of the barrel more closely, thereby improving the sealing between the punch body and the barrel and allowing the aluminum liquid to fully enter the interior of the mold, making the product fuller. At the same time, the clamping ring is easy to replace without replacing the entire punch, thereby reducing processing costs and improving the practicality of the punch.

[0014] 2. The utility model is also provided with a second sealing assembly. During die casting, the first clamping ring and the second clamping ring further improve the sealing between the punch body and the barrel, and the first clamping ring and the second clamping ring are easy to replace.

[0015] In summary, the utility model has the advantages of high sealing performance and easy replacement of the clamping ring, and is suitable for the technical field of die-casting machine equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings:

[0017] Figure 1 It is a structural schematic diagram of the clamping ring punch for the die-casting machine;

[0018] Figure 2 The internal structure diagram of the clamping ring punch for the die casting machine is shown in FIG.

[0019] Figure 3 It is a cross-sectional view of the retaining ring punch for the die casting machine.

[0020] Figure markings: 1-punch body; 11-cooling chamber; 2-pressing end; 3-connecting end; 31-through hole; 4-first sealing assembly; 41-clamping ring; 42-first sealing groove; 5-second sealing assembly; 51-first clamping ring; 52-second clamping ring; 53-second sealing groove; 6-boss; 7-first internal thread; 8-external thread; 9-second internal thread. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present utility model are clearly and completely described below in conjunction with the accompanying drawings.

[0022] Embodiment 1

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0024] like Figures 1 to 3 As shown, a retaining ring punch for a die-casting machine includes a punch body 1, a pressing end 2 is fixedly arranged on the top of the punch body 1, a connecting end 3 is arranged on the bottom, a cooling cavity 11 is opened in the punch body 1, a through hole 31 is opened in the connecting end 3, and the through hole 31 is connected to the cooling cavity 11, a first sealing component 4 is arranged on the pressing end 2, and a second sealing component 5 is arranged on the punch body 1, and the first sealing component 4 and the second sealing component 5 are both used to seal between the barrel and the punch body 1.

[0025] like Figure 1 As shown, the first sealing assembly 4 includes a clamping ring 41 installed on the pressing end 2 and a first sealing groove 42 opened on the clamping ring 41. During die-casting, the clamping ring 41 expands due to heat and can automatically adjust its size according to the gap between the punch body 1 and the barrel, so that the clamping ring 41 fits the inner wall of the barrel more closely, thereby improving the sealing between the punch body 1 and the barrel and allowing the aluminum liquid to fully enter the mold, making the product fuller. At the same time, the clamping ring 41 is easy to replace without replacing the entire punch, thereby reducing processing costs and improving the practicality of the punch.

[0026] like Figure 1 As shown, the second sealing assembly 5 includes a first clamping ring 51 installed in an annular manner in the middle of the punch body 1, a second clamping ring 52 installed in an annular manner in the middle of the punch body 1, and a second sealing groove 53 opened on the first clamping ring 51 and the second clamping ring 52. During die-casting, the first clamping ring 51 and the second clamping ring 52 further improve the sealing between the punch body 1 and the barrel, and the first clamping ring 51 and the second clamping ring 52 are easy to replace.

[0027] like Figure 2 As shown, a boss 6 is fixedly provided on the top of the pressing end 2. By providing the boss 5, its cross section gradually decreases from top to bottom, thereby avoiding the problems of wear and poor fit caused by the pressing end 2 moving back and forth in the cavity, and reducing the die-casting resistance, thereby improving the die-casting efficiency.

[0028] like Figure 2 As shown, a first internal thread 7 is provided on the inner wall of the bottom of the punch body 1 .

[0029] like Figure 2As shown, an external thread 8 is provided on the top of the connecting end 3, and a second internal thread 9 is provided on the inner wall thereof. The external thread 8 is adapted to the first internal thread 7. By providing the external thread 8 and the second internal thread 9, one end of the connecting end 3 is connected to the punch body 1, and the other end is connected to the injection rod, which is more firm and convenient for replacement.

[0030] Working process

[0031] When in use, during die casting, the clamping ring 41 expands due to heat and can automatically adjust its size according to the gap between the punch body 1 and the barrel, so that the clamping ring 41 fits the inner wall of the barrel more closely, thereby improving the sealing between the punch body 1 and the barrel, allowing the aluminum liquid to fully enter the mold and making the product fuller. Similarly, the first clamping ring 51 and the second clamping ring 52 further improve the sealing between the punch body 1 and the barrel. At the same time, the clamping ring 41, the first clamping ring 51 and the second clamping ring 52 are easy to replace without replacing the entire punch, thereby reducing processing costs and improving the practicality of the punch.

[0032] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only used to describe the present invention and simplify the description, rather than indicating or implying that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

[0033] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0034] The above combined with the accompanying drawings is only a preferred implementation mode of the utility model, but the utility model is not limited to the above implementation mode. It should be pointed out that for technicians in this field, various deformations and improvements can be made without departing from the structure of the utility model. These should also be regarded as the scope of protection of the utility model and will not affect the effect and practicality of the implementation of the utility model.

Claims

1. A clamping ring punch for a die-casting machine, comprising a punch body (1), characterized in that: A pressing end (2) is fixedly provided on the top of the punch body (1), and a connecting end (3) is provided on the bottom thereof; a cooling cavity (11) is provided in the punch body (1), and a through hole (31) is provided in the connecting end (3); the through hole (31) is connected to the cooling cavity (11); a first sealing component (4) is provided on the pressing end (2), and a second sealing component (5) is provided on the punch body (1); the first sealing component (4) and the second sealing component (5) are both used to seal between the barrel and the punch body (1).

2. A clamping ring punch for a die casting machine according to claim 1, characterized in that: The first sealing assembly (4) comprises a clamping ring (41) annularly mounted on the pressing end (2) and a first sealing groove (42) formed on the clamping ring (41).

3. The clamping ring punch for a die casting machine according to claim 1, characterized in that: The second sealing assembly (5) comprises a first retaining ring (51) annularly mounted in the middle of the punch body (1), a second retaining ring (52) annularly mounted in the middle of the punch body (1), and a second sealing groove (53) formed on the first retaining ring (51) and the second retaining ring (52).

4. The clamping ring punch for a die casting machine according to claim 1, characterized in that: A boss (6) is fixedly arranged on the top of the pressing end (2).

5. The clamping ring punch for a die casting machine according to claim 1, characterized in that: A first internal thread (7) is provided on the inner wall of the bottom of the punch body (1).

6. A clamping ring punch for a die casting machine according to claim 5, characterized in that: The top of the connection end (3) is provided with an external thread (8), and the inner wall thereof is provided with a second internal thread (9), and the external thread (8) is adapted to the first internal thread (7).

Images