Multi-ring spring punch with opening structure

Abstract

The utility model discloses a multi-ring spring punch with an opening structure, which comprises a ring seat, and a plurality of metal ring-shaped pieces are sequentially sleeved on the outer circumference of the ring seat along the axial direction; at least one of the metal ring-shaped pieces is provided with a breaking line on the ring surface, so that the metal ring-shaped piece forms a ring-shaped structure which is provided with an opening gap and is not connected; according to the utility model, the plurality of metal ring-shaped pieces are arranged on the periphery of the ring seat, and the ring surfaces are provided with the breaking lines, so that the metal ring-shaped pieces form a ring-shaped structure which is provided with the opening gaps and is not connected, and the friction loss and the reducing effect between each ring and the melting cup are stably compensated; and meanwhile, under the condition that the connector and the injection rod are not disassembled, all the rings can be conveniently replaced, the replacement time is saved, and the operation efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of pressure casting equipment, specifically relating to a multi-ring spring punch with an open structure. Background Technology

[0002] Pressure casting is a casting method in which liquid or semi-solid metal or alloy, or liquid metal or alloy containing reinforcing phases, is filled into the cavity of a die-casting mold at high pressure and high speed, and the metal or alloy is solidified under pressure to form a casting.

[0003] The injection punch is a key component of a pressure casting machine. During the pressure casting process, it is primarily used to pump molten metal into the mold cavity, and its performance directly affects the product quality. In existing technologies, the injection punch is connected to the injection rod via a connector.

[0004] While conducting early research on the problem of friction and wear between the punch, molten cup, and injection chamber wall, the applicant filed patent application CN202022672005.2, which discloses a spring-supported ring punch. By using a steel ring and a copper ring installed on the punch, under the action of the inner support spring, the frictional loss between the copper ring and the molten cup can be stably compensated, so that the copper ring and the inner wall of the injection chamber are always in close contact. The high sealing state achieved by this compensation method can stably reduce the vacuum value and greatly improve product quality.

[0005] As the applicant further investigated, it was discovered that the rings in the technical solution were all closed, making disassembly inconvenient. When the rings were worn to a certain extent and needed to be replaced, the injection rod, connector and punch had to be disassembled and separated, which resulted in a large workload, trouble and low efficiency. Utility Model Content

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A multi-ring spring punch with an open structure, comprising:

[0008] The ring seat has several metal ring-shaped parts sequentially fitted along the axial direction from the outer circumference;

[0009] At least one of the metal rings has a break line on its ring surface, so that the metal ring is a ring structure with an opening gap and no connection.

[0010] The disconnected line is zigzag-shaped.

[0011] Furthermore, the opening gap of the metal ring is not less than 1 mm.

[0012] Furthermore, the plurality of said metal ring-shaped members include a first steel ring and a second steel ring distributed near the two ends of the ring seat, and at least one copper ring located between the first steel ring and the second steel ring.

[0013] Furthermore, multiple annular grooves are spaced apart on the outer circumference of the ring seat, and the first steel ring, copper ring, and second steel ring are respectively installed in the annular grooves.

[0014] Furthermore, a support spring is also provided inside the annular groove.

[0015] Furthermore, the metal ring-shaped component also includes an oil spraying ring disposed between the first steel ring and the second steel ring.

[0016] Furthermore, the oil injection ring is evenly distributed with oil injection holes that communicate with the oil drain holes in the circumferential direction.

[0017] Compared with the prior art, this utility model has the following advantages:

[0018] Multiple metal rings on the outer periphery of the ring seat are designed with open lines on their surfaces, forming a ring structure with open gaps and no connection. This ensures stable compensation for frictional losses between each ring and the melting cup, as well as the effect of diameter change. The Z-shaped structure with movable gaps allows for a significant increase in gaps under the action of the installation clamps. This enables convenient replacement of each ring without disassembling the connector or injection rod, saving replacement time and improving work efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram illustrating a specific embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram illustrating the exploded structure of a specific embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram illustrating the main structural features of the ring seat in a specific embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram illustrating a partial structure of the first steel ring in a specific embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the mounting clamps used to install the metal ring-shaped component of this utility model;

[0024] The reference numerals in the accompanying drawings include:

[0025] 1. Ring seat, 10. Annular groove, 11. Oil drain hole, 2. First steel ring, 3. Second steel ring, 4. Copper ring, 5. Oil injection ring, 50. Oil injection hole, 6. Disconnect line, 60. Opening gap, 7. Installation clamp. Detailed Implementation

[0026] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] The accompanying drawings are for illustrative purposes only and represent schematic diagrams, not actual physical objects. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals in the drawings of the embodiments of this utility model correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" appear, indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0028] like Figure 1 - Figure 5 As shown, the present invention provides a multi-ring spring punch with an open structure, comprising a ring seat 1 and several metal ring-shaped parts.

[0029] Among them, the metal ring-shaped parts are sequentially sleeved along the axial direction of the ring seat 1;

[0030] At least one of the metal rings has a break line 6 on its ring surface, so that the metal ring forms a ring structure with an opening gap 60 and no connection.

[0031] The broken line 6 is in a Z-shape.

[0032] Multiple metal rings on the outer periphery of the ring seat 1 are designed with open lines 6 on their surfaces, forming a non-connected annular structure with an opening gap 60. This ensures stable compensation for frictional losses between each ring and the melting cup, as well as the effect of diameter change. The Z-shaped structure with movable gaps allows for a significant increase in the gaps under the action of the mounting clamps 7. This enables convenient replacement of each ring without disassembling the connector or injection rod, saving replacement time and improving work efficiency.

[0033] When replacing existing punches, the threads are deformed due to prolonged high-temperature impact and rust caused by cooling water circulation. Replacing a punch is quite time-consuming and labor-intensive, conservatively estimated to take 25 minutes on average. This wastes time and effort and affects production efficiency.

[0034] The improved punch of this utility model only requires replacement of the wear parts (copper ring, steel ring) after wear. Disassembly and assembly are performed using tools such as wrenches or pliers. Figure 5 As shown. The forearm of the installation clamp 7 extends into the opening gap 60 to pry open the metal ring. Replacing the spare part only takes about 5 minutes, effectively reducing replacement time and worker labor intensity, and improving work efficiency.

[0035] The opening gap of this metal ring is not less than 1 mm.

[0036] Furthermore, since the break line 6 has a Z-shaped structure, it can prevent the metal ring from moving axially at the break line 6 during the use of the punch, thus preventing unevenness of the circumferential end face of the metal ring. It has good stability and plays a positive role in both the service life of the metal ring itself and the sealing effect between the entire spring punch and the injection chamber, as well as the quality of the casting.

[0037] Specifically, in this embodiment, the plurality of metal ring-shaped components include a first steel ring 2 and a second steel ring 3 distributed near the two ends of the ring seat 1, and at least one copper ring 4 located between the first steel ring 2 and the second steel ring 3.

[0038] Multiple annular grooves 10 are spaced apart on the outer circumference of the ring seat 1. The first steel ring 2, the copper ring 4, and the second steel ring 3 are respectively installed in the annular grooves 10. The annular grooves 10 are also provided with inner support springs (not shown in the figure) to support the copper ring 4 and the steel ring respectively. Under the action of the inner support springs, the copper ring 4 and the steel ring always bulge outward, which can offset the wear caused by wear, thereby ensuring a precise fit between the punch and the injection chamber wall, good sealing, continuous and stable compensation for frictional loss, and stable sealing state.

[0039] Since this spring punch is an improvement on the technical solution mentioned in the background art, the specific configuration of its components will not be described in detail here.

[0040] In addition, the metal ring component also includes an oil spray ring 5 disposed between the first steel ring 2 and the second steel ring 3. The oil spray ring 5 has oil spray holes 50 evenly distributed circumferentially, communicating with the oil drain hole 11. The oil spray ring 5 guides the oil from the oil drain hole 11 into the oil spray holes 50, providing uniform lubrication to the steel ring and copper ring 4, making the punch move more smoothly back and forth on the inner wall of the melting cup, reducing frictional resistance, providing better protection for the pressure chamber and the punch, and extending the life of the pressure chamber, the punch, and each metal ring.

[0041] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A multi-ring spring punch with an open structure, characterized in that, include: The ring seat (1) has several metal ring-shaped parts sequentially fitted along the axial direction from the outer circumference; At least one of the metal rings has a break line (6) on its ring surface, so that the metal ring forms a ring structure with an opening gap (60) and no connection. The disconnect line (6) is zigzag-shaped.

2. A multi-ring spring punch with an open structure as described in claim 1, characterized in that: The opening gap (60) of the metal ring is not less than 1 mm.

3. A multi-ring spring punch with an open structure as described in claim 1 or 2, characterized in that: The plurality of said metal rings include a first steel ring (2) and a second steel ring (3) distributed near the two ends of the ring seat (1), and at least one copper ring (4) located between the first steel ring (2) and the second steel ring (3).

4. A multi-ring spring punch with an open structure as described in claim 3, characterized in that: The outer circumferential surface of the ring seat (1) is provided with a plurality of annular grooves (10) spaced apart, and the first steel ring (2), copper ring (4) and second steel ring (3) are respectively installed in the annular grooves (10).

5. A multi-ring spring punch with an open structure as described in claim 4, characterized in that: A support spring is also provided inside the annular groove (10).

6. A multi-ring spring punch with an open structure as described in claim 1, 2, 4, or 5, characterized in that: The metal ring also includes an oil spraying ring (5) disposed between the first steel ring (2) and the second steel ring (3).

7. A multi-ring spring punch with an open structure as described in claim 6, characterized in that: The oil injection ring (5) has oil injection holes (50) that communicate with the oil drain hole (11) evenly distributed in the circumferential direction.

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