Gas meter connector forming die and forming device

Abstract

The utility model provides a gas meter connector forming mold and device, the forming mold comprises a cylindrical forming outer mold, one end of the forming outer mold is coaxially provided with an annular groove, the annular groove communicates with the interior of the forming outer mold, and the outward end of the annular groove is provided with a first conical surface; the diameter of the outward end of the first conical face is larger than the outer diameter of the outward end of the flaring end of the flaring pipe fitting. The mold core comprises a pushing column and a supporting column which are coaxially connected, the diameter of the pushing column is matched with the inner diameter of the connector of the gas meter connector, the diameter of the supporting column is matched with the inner diameter of the non-flaring part of the flaring pipe fitting, and the mold core is arranged in the forming outer mold in a sliding mode. The forming device comprises a forming die, a clamping mechanism and pushing mechanisms, the clamping mechanism is used for clamping the flaring pipe fitting, the pushing mechanisms are arranged on one side of the clamping mechanism at intervals, and the pushing ends of the pushing mechanisms are connected with the end, away from the annular groove, of the forming outer die. The flared pipe fitting can be stamped to form a boss and a connector, and the die is not prone to damage and has high practicability.

Description

Technical Field

[0001] This utility model belongs to the field of pipe joint forming technology, and is particularly related to a gas meter joint forming mold and forming device. Background Technology

[0002] Gas meter connectors typically require two stamping processes. Currently, the process involves first stamping a convex ring using a device disclosed in patent CN219324660U for forming metal pipe convex rings, and then stamping a boss using a device disclosed in patent CN219211205U for forming a gas bend meter connector boss. The problems with this method are: due to unavoidable instability in the pipe manufacturing process, if a pipe bursts during the stamping process, it causes significant damage to the inner core, making it prone to wear and tear, thus increasing production costs. Furthermore, this process places high demands on the inner core's machining process, resulting in high mold costs, and the frequent mold changes also severely impact production efficiency. The current solution is to change the forming method, first stamping the end of the pipe into a shape similar to... Figure 1 The flared tube fitting 3 shown has a flared end 301, which is then formed by stamping. Figure 2 The gas meter connector 2 shown has a boss 202 and an interface 201. When flaring, only a punch matching the shape of the flared end 301 of the flared fitting 3 is needed. No inner core is required, which can reduce mold wear. However, the subsequent stamping to form the boss 202 and the interface 201 still requires the design of a stable and practical mold to achieve the forming of the gas meter connector 2. Utility Model Content

[0003] To address the aforementioned deficiencies in the prior art, this application provides a gas meter connector forming mold and forming device, which can stamp the flared pipe fitting to form a boss and interface, and the mold is not easily damaged, thus having strong practicality.

[0004] To achieve the above objectives, the present invention employs the following technology:

[0005] A gas meter connector forming mold, comprising:

[0006] The outer mold is cylindrical, with an annular groove coaxially formed at one end. The annular groove is connected to the interior of the outer mold. The outer end of the annular groove has a first conical surface. The diameter of the annular groove matches the outer diameter of the gas meter connector interface. The diameter of the outer end of the first conical surface is larger than the outer diameter of the outer end of the flared end of the flared pipe fitting.

[0007] The mold core includes a push column and a support column connected coaxially. The diameter of the push column matches the inner diameter of the interface of the gas meter connector, and the diameter of the support column matches the inner diameter of the unflared part of the flared pipe fitting. The mold core is slidably disposed inside the outer mold.

[0008] Furthermore, a spring is connected to the end of the push post away from the support post. The spring is located inside the outer mold. When the spring is in its natural state, the end of the push post near the support post is outside the outer mold.

[0009] Furthermore, the periphery of the end of the support column away from the push column has a second conical surface.

[0010] A gas meter connector forming device includes a gas meter connector forming mold as described above, as well as a clamping mechanism and a pushing mechanism. The clamping mechanism is used to clamp the flared pipe fitting, and the pushing mechanism is spaced apart on one side of the clamping mechanism. The pushing end of the pushing mechanism is connected to the end of the forming outer mold away from the annular groove.

[0011] Furthermore, the push end of the push mechanism is threadedly connected to a connecting cover, on which a connecting hole matching the outer diameter of the forming outer mold is opened coaxially. An annular piece is coaxially provided at the end of the forming outer mold away from the annular groove. The outer diameter of the annular piece is larger than the outer diameter of the forming outer mold. The forming outer mold passes through the connecting hole, and the outer diameter of the annular piece is smaller than the inner diameter of the connecting cover.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. It can stamp the flared pipe fittings to form bosses and interfaces, and the mold is not easily damaged. It has strong practicality. The outer mold size and the mold core size match to meet the process requirements of necking, shaping, length setting and flattening.

[0014] 2. The connecting cover and the ring plate make it easy to change the forming mold, and can prevent the forming mold from shifting during the stamping process, thus ensuring high stability.

[0015] 3. After the stamping process is completed and the pushing mechanism retracts, the spring can automatically reset the mold core. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the structure of the pipe fitting after it has been flared.

[0017] Figure 2 This is a three-dimensional view of part of the gas meter connector after it has been formed.

[0018] Figure 3 This is a perspective view of the overall structure of the molding die in the embodiments of this application.

[0019] Figure 4 This is an exploded view of the molding die in an embodiment of this application.

[0020] Figure 5 for Figure 4 Enlarged view of section A in the middle.

[0021] Figure 6 This is a three-dimensional view of the molding device in the embodiments of this application.

[0022] Figure 7 This is an exploded view of a portion of the molding apparatus in an embodiment of this application.

[0023] Reference numerals: outer mold-1, gas meter connector-2, flared pipe fitting-3, push post-4, support post-5, spring-6, clamping mechanism-7, pushing mechanism-8, connecting cover-9, annular groove-101, annular piece-102, first conical surface-1011, interface-201, boss-202, flared end-301, second conical surface-501, connecting hole-901. Detailed Implementation

[0024] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0025] On the one hand, embodiments of this application provide a gas meter connector forming mold, such as Figures 3-5 As shown, it includes the outer mold 1, the mold core, etc.

[0026] Specifically, the outer mold 1 is cylindrical, with an annular groove 101 coaxially formed at one end. The annular groove 101 is connected to the interior of the outer mold 1. The outer end of the annular groove 101 has a first conical surface 1011. The diameter of the annular groove 101 matches the outer diameter of the interface 201 of the gas meter connector 2. The diameter of the outer end of the first conical surface 1011 is larger than the outer diameter of the outer end of the flared end 301 of the flared pipe fitting 3, which is used to reduce the opening at the flared end of the pipe fitting. The mold core includes a push column 4 and a support column 5 coaxially connected. The diameter of the push column 4 matches the inner diameter at the interface 201 of the gas meter connector 2, and the diameter of the support column 5 matches the inner diameter of the unflared part of the flared pipe fitting 3. The mold core is slidably disposed inside the outer mold 1.

[0027] In actual use, the flared pipe fitting is fixed, the forming outer mold 1 is connected to the telescopic end of the hydraulic cylinder, and the forming outer mold 1 is coaxially aligned with the flared end 301 of the flared pipe fitting 3. Then, the hydraulic cylinder is controlled to drive the forming outer mold 1 and the mold core to move towards the flared pipe fitting 3. During the movement, the support column 5 will first enter the unflared part of the pipe fitting to support it and prevent it from being subsequently deformed by the impact. The push column 4 will abut against the conical part of the flared section and stop moving. As the hydraulic cylinder continues to advance, the forming outer mold 1 will continue to move forward. When the flared end 301 of the flared pipe fitting 3 abuts against the first conical surface 1011, the inner diameter of the flared end 301 will gradually decrease to match the diameter of the push column 4, forming... Figure 2 The interface 201 shown, after the flared end 301 abuts against the inward end of the annular groove 101, will be deformed by the thrust, forming... Figure 2 The boss 202 shown.

[0028] Preferred options, please refer to Figure 3 , Figure 4 A spring 6 is connected to the end of the pusher 4 furthest from the support column 5. The spring 6 is located inside the outer forming mold 1. When the spring 6 is in its natural state, the end of the pusher 4 closest to the support column 5 is outside the outer forming mold 1. After the flared pipe fitting 3 is stamped, the outer forming mold 1 disengages from the interface 201, and the mold core is reset by the elastic force of the spring 6, facilitating the next stamping process. For details, please refer to [link / reference]. Figure 4 The support column 5 has a second conical surface 501 on the periphery of the end away from the push column 4. The second conical surface 501 makes it easier for the support column 5 to enter the unflared part of the flared pipe fitting 3.

[0029] On the other hand, embodiments of this application provide a gas meter connector 2 forming device, such as... Figure 6 As shown, the device includes a clamping mechanism 7, a pushing mechanism 8, and the aforementioned gas meter connector forming mold. The clamping mechanism 7 is used to clamp the flared pipe fitting 3. The pushing mechanism 8 is spaced apart on one side of the clamping mechanism 7, and the pushing end of the pushing mechanism 8 is connected to the end of the forming outer mold 1 away from the annular groove 101. For details, please refer to [reference needed]. Figure 7 The pushing end of the pushing mechanism 8 is threadedly connected to a connecting cover 9. The connecting cover 9 has a connecting hole 901 coaxially formed with the outer diameter of the forming outer mold 1. An annular piece 102 is coaxially provided at the end of the forming outer mold 1 furthest from the annular groove 101. The outer diameter of the annular piece 102 is larger than the outer diameter of the forming outer mold 1. The forming outer mold 1 passes through the connecting hole 901, and the outer diameter of the annular piece 102 is smaller than the inner diameter of the connecting cover 9. The connecting cover 9, with its larger diameter relative to the forming outer mold 1, is easy to unscrew, facilitating mold replacement. Furthermore, this connection method prevents mold displacement during stamping, ensuring high stability.

[0030] The above are only some of the embodiments listed in this application and are not intended to limit this application.

Claims

1. A gas meter connector forming mold, characterized in that, include: The forming outer mold (1) is cylindrical, and an annular groove (101) is coaxially provided at one end. The annular groove (101) is connected to the interior of the forming outer mold (1). The outer end of the annular groove (101) has a first conical surface (1011). The diameter of the annular groove (101) matches the outer diameter of the interface (201) of the gas meter connector (2). The diameter of the outer end of the first conical surface (1011) is greater than the outer diameter of the outer end of the flared end (301) of the flared pipe fitting (3). The mold core includes a push column (4) and a support column (5) connected coaxially. The diameter of the push column (4) matches the inner diameter of the interface (201) of the gas meter connector (2). The diameter of the support column (5) matches the inner diameter of the unflared part of the flared pipe fitting (3). The mold core is slidably disposed in the outer mold (1).

2. The gas meter connector forming mold according to claim 1, characterized in that, A spring (6) is connected to the end of the push column (4) away from the push support column (5). The spring (6) is located inside the molding outer mold (1). When the spring (6) is in its natural state, the end of the push column (4) close to the support column (5) is outside the molding outer mold (1).

3. The gas meter connector forming mold according to claim 1, characterized in that, The periphery of the end of the support column (5) away from the push column (4) has a second conical surface (501).

4. A gas meter connector forming device, characterized in that, The gas meter connector forming mold, clamping mechanism (7), and pushing mechanism (8) are included as described in any one of claims 1-3. The clamping mechanism (7) is used to clamp the flared pipe fitting (3). The pushing mechanism (8) is spaced apart on one side of the clamping mechanism (7). The pushing end of the pushing mechanism (8) is connected to the end of the forming outer mold (1) away from the annular groove (101).

5. A gas meter connector forming device according to claim 4, characterized in that, The push end of the push mechanism (8) is threadedly connected to a connecting cover (9). The connecting cover (9) is coaxially provided with a connecting hole (901) that matches the outer diameter of the forming outer mold (1). The end of the forming outer mold (1) away from the annular groove (101) is coaxially provided with an annular piece (102). The outer diameter of the annular piece (102) is larger than the outer diameter of the forming outer mold (1). The forming outer mold (1) passes through the connecting hole (901). The outer diameter of the annular piece (102) is smaller than the inner diameter of the connecting cover (9).

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