Gas meter bottom shell mold

Abstract

The utility model relates to the technical field of molds, and discloses a gas meter bottom shell mold which comprises a supporting plate, supporting rods are fixedly connected to the four corners of the top of the supporting plate, springs are arranged on the outer bottom sides of the supporting rods in a sleeving mode, first sliding rings are slidably connected to the outer bottom sides of the supporting rods, and second sliding rings are arranged on the sliding rings. Connecting plates are fixedly connected to the close sides of the multiple first sliding rings, multiple fixing frames are fixedly connected to the top of the supporting plate, rotating shafts are fixedly connected to the interiors of the multiple fixing frames, rotating rods are rotationally connected to the exteriors of the multiple rotating shafts, telescopic rods are fixedly connected to the left ends and the right ends of the multiple rotating rods, and the telescopic rods are fixedly connected to the left ends and the right ends of the multiple rotating rods. The top of the supporting plate is fixedly connected with an ejector rod, and the outer portion of the ejector rod is slidably connected with a moving ring. According to the utility model, the demoulding process is accelerated, and the staying time of an injection molded part in the mould is reduced, so that the risk of shrinkage or deformation caused by supercooling is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field especially relates to a gas meter bottom shell mould. BACKGROUND

[0002] Mould is a precision tool used in industrial production to shape and size objects, usually made of high-strength and high-wear-resistant materials such as alloy steel or stainless steel. In the manufacturing process, the mould is transformed into a specific product form by injection molding, extrusion, die casting and other processes, and the mould is diverse, which can be divided into metal processing mould (such as stamping mould, extrusion mould), non-metal processing mould (such as plastic mould, rubber mould) and other moulds according to the processing object and process. These moulds are widely used in product manufacturing in the fields of automobile, electronics, medical treatment and other fields. A complete mould system includes two parts of moving die and fixed die, which realizes the forming and demolding process of products through opening and closing action. When designing the mould, the specific needs of the product and the production efficiency need to be considered to ensure that each product produced can meet the quality standards. The gas meter bottom shell mould is a mould specially used for producing the bottom shell of the gas meter. The design and manufacture of this mould need to consider the use environment and functional requirements of the gas meter to ensure that the produced gas meter bottom shell can meet the actual use requirements.

[0003] However, the existing part of the gas meter bottom shell mould is not convenient for quick ejection of the injection molding part after the injection molding of the bottom shell is completed due to the limitation of the design and structure of the mould. The injection molding worker usually needs to personally intervene and manually take out the injection molding part from the mould or use special tools to clamp these parts. This process not only consumes time and effort, but also increases the labor intensity of the workers, and at the same time may cause accidental damage to the injection molding part, affecting the product quality. Therefore, in view of the above problems, a gas meter bottom shell mould is proposed to solve the above problems. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a gas meter bottom shell mould, which aims to improve the problem that the existing part of the gas meter bottom shell mould is not convenient for quick ejection of the injection molding part after the injection molding is completed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A gas meter bottom shell mold includes a support plate, with support rods fixedly connected to the four top corners of the support plate. Springs are fitted onto the outer bottom sides of each of the support rods. Sliding rings are slidably connected to the outer bottom sides of each of the support rods. Connecting plates are fixedly connected to adjacent sides of each sliding ring. Multiple fixing brackets are fixedly connected to the top of the support plate. Rotating shafts are fixedly connected inside each of the fixing brackets. Rotating rods are rotatably connected to the outer sides of each of the rotating shafts. Telescopic rods are fixedly connected to the left and right ends of each of the rotating rods. An ejector rod is fixedly connected to the top of the support plate. A moving ring is slidably connected to the outer side of the ejector rod. A gasket is fixedly connected to the top of the ejector rod. A second sliding ring is fixedly connected to the outer bottom side of the moving ring. Pressure rings are slidably connected to the outer sides of each of the support rods. Installation components for maintaining stability are provided on the outer sides of the support rods.

[0007] As a further description of the above technical solution:

[0008] The installation assembly includes a first installation plate, which is internally fixedly connected to the outside of a plurality of support rods. A lower mold is provided on the top of the first installation plate, and a second installation plate is fixedly connected to the top of the plurality of support rods. An upper mold is fixedly connected to the bottom of the second installation plate.

[0009] As a further description of the above technical solution:

[0010] The lower mold has multiple air inlets and multiple flow holes. A fixed frame is fixedly connected to the top left side of the mounting plate. Two fans are fixedly connected inside the fixed frame. Two filter plates are fixedly connected to both sides of the fixed frame. The lower mold has an ejection groove. The four corners of the mounting plate have sliding grooves.

[0011] As a further description of the above technical solution:

[0012] Multiple support columns are fixedly connected to the top left and right sides of the support plate, and an injection tube is fixedly connected to the right side of the upper mold.

[0013] As a further description of the above technical solution:

[0014] One end of the spring is fixedly connected to the bottom of the sliding ring, and the other end of the spring is fixedly connected to the top of the support plate.

[0015] As a further description of the above technical solution:

[0016] Four of the telescopic rods are rotatably connected to the outside of the first sliding ring on the side away from the ejector rod, and the other four telescopic rods are rotatably connected to the outside of the second sliding ring on the side closer to the ejector rod.

[0017] As a further description of the above technical solution:

[0018] The outer side of the movable ring is slidably connected to the inside of the mounting plate one, and the outer side of the movable ring is fixedly connected to the inside of the lower mold.

[0019] As a further description of the above technical solution:

[0020] The interior of the air inlet is connected to the interior of the flow hole, and the exterior of the telescopic rod is slidably connected to the interior of the top outlet groove;

[0021] As a further description of the above technical solution:

[0022] The outer part of the pressure ring is slidably connected to the inside of the groove, and the top of the sliding ring is fixedly connected to the bottom of the pressure ring.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this invention, after the injection molding process is completed and the mold is opened, the ejector rod uses a shim to quickly lift the injection molded part from the mold. This mechanism not only accelerates the demolding process but also reduces the residence time of the injection molded part inside the mold, thereby reducing the risk of shrinkage or deformation due to excessive cooling. Furthermore, the design of the ejector rod and shim ensures the stability and integrity of the injection molded part during demolding, avoiding potential damage.

[0025] 2. In this invention, the support rods are evenly distributed around the mold, ensuring uniform force distribution throughout the mold structure during the mold closing process and preventing deformation or damage caused by uneven force. The springs provide additional pressure during mold closing, ensuring a tight mold closure, and simultaneously help related components quickly return to their initial positions after mold opening. This design improves the precision and repeatability of mold operation, ensuring the quality stability of the injection molded parts.

[0026] 3. In this invention, multiple air inlets and flow holes are interconnected, forming an internal air circulation system. Combined with a fan within the fixed frame, this system can evenly blow cooling air into the mold, accelerating the cooling process of the injection molded part. The design of the flow holes increases the contact area between the cooling gas and the injection molded part, further improving cooling efficiency. Attached Figure Description

[0027] Figure 1 This is a perspective view of a gas meter bottom shell mold proposed in this utility model;

[0028] Figure 2 This is a schematic diagram of the upper mold structure of a gas meter bottom shell mold proposed in this utility model;

[0029] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0030] Figure 4 for Figure 2 Enlarged view at point B in the middle;

[0031] Figure 5 for Figure 2 Enlarged view at point C;

[0032] Figure 6 This is a schematic diagram of the lower mold structure of a gas meter bottom shell mold proposed in this utility model.

[0033] Legend:

[0034] 1. Support plate; 2. Support rod; 3. Spring; 4. Sliding ring one; 5. Connecting plate; 6. Rotating rod; 7. Fixing frame; 8. Rotating shaft; 9. Sliding ring two; 10. Ejector rod; 11. Moving ring; 12. Mounting plate one; 13. Lower mold; 14. Pressure ring; 15. Mounting plate two; 16. Upper mold; 17. Air inlet; 18. Flow hole; 19. Fixing frame; 20. Fan; 21. Filter plate; 22. Ejector groove; 23. Slide groove; 24. Support column; 25. Injection tube; 26. Telescopic rod; 27. Gasket. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Reference Figures 1 to 3This utility model provides an embodiment of a gas meter bottom shell mold, including a support plate 1. The support plate 1 is the basic frame of the entire mold, with a robust structure to withstand the weight and pressure of all components above. Support rods 2 are fixedly connected to the four top corners of the support plate 1. The support rods 2 ensure uniform stress distribution on the entire mold structure, avoiding deformation or damage caused by uneven stress during injection molding. Springs 3 are sleeved on the outer bottom sides of multiple support rods 2. One end of the spring 3 is fixedly connected to the bottom of the sliding ring 4, and the other end of the spring 3 is fixedly connected to the top of the support plate 1. The springs 3 play a role in resetting and buffering during mold operation. This helps the relevant components return to their initial position quickly after the mold opens, and also provides additional pressure when the mold closes to ensure that the mold is tightly closed. The outer bottom sides of multiple support rods 2 are slidably connected to sliding rings 4. The sliding rings 4 move downward, thereby triggering a series of mechanical actions, including the rotation of the rotating rod 6 and the rise of the lower mold 13. The adjacent sides of multiple sliding rings 4 are fixedly connected to connecting plates 5. The top of the support plate 1 is fixedly connected to multiple fixing frames 7. The interior of multiple fixing frames 7 is fixedly connected to rotating shafts 8. The fixing frames 7 provide support for the rotating shafts 8, thereby allowing the rotating rod 6 to rotate smoothly. The rotating shaft 8 is the center point of rotation of the rotating rod 6.

[0037] Reference Figures 2 to 4 Multiple rotating shafts 8 are rotatably connected to rotating rods 6 on their exteriors. Telescopic rods 26 are fixedly connected to both ends of the rotating rods 6. The telescopic rods 26 extend, retract, and rotate with the rotation of the rotating rods 6. One end of each telescopic rod is connected to an ejector rod 10, and the other end is connected to a sliding ring 9, used to transmit motion to control the up-and-down movement of the lower mold 13. The telescopic rods 26 are slidably connected to the interior of the ejector groove 22. An ejector rod 10 is fixedly connected to the top of the support plate 1. Four telescopic rods 26 are rotatably connected to the exterior of the sliding ring 4 on the side furthest from the ejector rod 10, while the other four telescopic rods 26 are rotatably connected to the exterior of the sliding ring 4 on the side closest to the ejector rod 10. The ejector rod 10 is slidably connected to the outside of the sliding ring 2 9. The moving ring 11 is slidably connected to the outside of the ejector rod 10. The moving ring 11 rises with the rise of the lower mold 13 to ensure the correct closure of the mold during the injection molding process. The top of the ejector rod 10 is fixedly connected to the gasket 27. After the injection molded part is formed, the injection molded part is lifted by the gasket 27 to achieve rapid demolding. The bottom side of the moving ring 11 is fixedly connected to the sliding ring 2 9. The outside of the multiple support rods 2 is slidably connected to the pressure ring 14. The top of the sliding ring 1 4 is fixedly connected to the bottom of the pressure ring 14. The outside of the multiple support rods 2 is provided with mounting components for maintaining stability.

[0038] Reference Figures 3 to 5The mounting assembly includes a mounting plate 12, with a movable ring 11 externally slidably connected to the inside of the mounting plate 12. Multiple support rods 2 are fixedly connected to the outside of the mounting plate 12. A lower mold 13 is mounted on the top of the mounting plate 12. A rotating rod 6 is connected to a fixed frame 7 via a rotating shaft 8 and can rotate around the shaft. Its rotation is driven by the displacement of the sliding ring 4, further affecting the position of the lower mold 13. The movable ring 11 is fixedly connected to the inside of the lower mold 13. A second mounting plate 15 is fixedly connected to the top of the multiple support rods 2, and an upper mold 16 is fixedly connected to the bottom of the second mounting plate 15. The lower mold 13 and the upper mold 16 cooperate to form an injection cavity.

[0039] Reference Figures 4 to 6 The lower mold 13 has multiple air inlets 17 and multiple flow holes 18 inside. The interiors of the air inlets 17 and flow holes 18 are connected. Through the connecting holes, the air blown by the fan 20 can circulate inside the mold, thereby improving cooling efficiency. A fixing frame 19 is fixedly connected to the top left side of the mounting plate 12. Two fans 20 are fixedly connected inside the fixing frame 19. The fans 20 blow air into the mold to accelerate the cooling process of the injection molded part. The left side of the fixing frame 19... Two filter plates 21 are fixedly connected to both sides of the mold. The filter plates 21 ensure that the air entering the mold is clean and prevent dust or impurities from affecting the quality of the injection molded parts. The lower mold 13 has an ejector groove 22 inside. The four corners of the mounting plate 12 have sliding grooves 23 inside. The pressure ring 14 is slidably connected to the inside of the sliding groove 23. Multiple support columns 24 are fixedly connected to the top left and right sides of the support plate 1. The upper mold 16 has an injection tube 25 fixedly connected to the right side. The injection tube 25 is used to inject injection liquid into the mold and is a key channel in the injection process.

[0040] Working Principle: When the base shell mold needs to be used, it can first be installed inside the injection molding device. Then, the injection molding device can be used to control the displacement of the mounting plate 15, which in turn causes the upper mold 16 to move downward. As the upper mold 16 moves downward, the pressure ring 14 will also move. The displacement of the pressure ring 14 will compress the sliding ring 4, causing the spring 3 to compress. The displacement of the sliding ring 4 will cause the telescopic rod 26 to extend and rotate, which will cause the rotating rod 6 to rotate around the rotating shaft 8. This will cause the sliding ring 9 to move upward, which will then cause the moving ring 11 to move upward. This will cause the lower mold 13 to move upward along with the moving ring 11, thus allowing the lower mold 13 to close with the upper mold 16. Then, the mold can be passed through the injection tube. After adding injection molding fluid to the 25th mold, the fan 20 is started. The air blown by the fan 20 enters the lower mold 13 and the upper mold 16 through the air inlet 17 and flows through the flow hole 18. This greatly increases the contact area between the lower mold 13 and the upper mold 16 and the cooling gas, thereby greatly improving the cooling efficiency. After cooling is completed, the installation plate 15 is displaced by the injection molding device, which causes the upper mold 16 to move upward, completing the separation of the injection mold. Then, the spring force of the spring 3 causes the pressure ring 14 and the sliding ring 4 to reset, which causes the rotating rod 6 to rotate around the rotating shaft 8, which in turn causes the sliding ring 9 to reset. At this time, the lower mold 13 moves downward and the injection molded part is lifted by the ejector rod 10 and the shim 27, thus completing the rapid ejection of the injection molded part.

[0041] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas meter bottom shell mold, comprising a support plate (1), characterized in that: Support rods (2) are fixedly connected to the top four corners of the support plate (1). Springs (3) are sleeved on the outer bottom sides of the multiple support rods (2). Sliding rings (4) are slidably connected to the outer bottom sides of the multiple support rods (2). Connecting plates (5) are fixedly connected to the adjacent sides of the multiple sliding rings (4). Multiple fixing frames (7) are fixedly connected to the top of the support plate (1). Rotating shafts (8) are fixedly connected inside the multiple fixing frames (7). Rotating rods (6) are rotatably connected to the outside of the multiple rotating shafts (8). Telescopic rods (26) are fixedly connected to both ends of the multiple rotating rods (6). An ejector rod (10) is fixedly connected to the top of the support plate (1). A moving ring (11) is slidably connected to the outside of the ejector rod (10). A gasket (27) is fixedly connected to the top of the ejector rod (10). A sliding ring (9) is fixedly connected to the bottom side of the moving ring (11). A pressure ring (14) is slidably connected to the outside of the multiple support rods (2). An installation component for maintaining stability is provided on the outside of the multiple support rods (2).

2. The gas meter bottom shell mold according to claim 1, characterized in that: The installation assembly includes a first installation plate (12), which is internally fixedly connected to the outside of a plurality of support rods (2). A lower mold (13) is provided on the top of the first installation plate (12), and a second installation plate (15) is fixedly connected to the top of the plurality of support rods (2). An upper mold (16) is fixedly connected to the bottom of the second installation plate (15).

3. The gas meter bottom shell mold according to claim 2, characterized in that: The lower mold (13) has multiple air inlets (17) inside, and multiple flow holes (18) inside. A fixed frame (19) is fixedly connected to the top left side of the mounting plate (12). Two fans (20) are fixedly connected inside the fixed frame (19). Two filter plates (21) are fixedly connected to both the left and right sides of the fixed frame (19). A top groove (22) is opened inside the lower mold (13). Sliding grooves (23) are opened at the four corners inside the mounting plate (12).

4. A gas meter bottom shell mold according to claim 2, characterized in that: Multiple support columns (24) are fixedly connected to the top left and right sides of the support plate (1), and an injection tube (25) is fixedly connected to the right side of the upper mold (16).

5. A gas meter bottom shell mold according to claim 1, characterized in that: One end of the spring (3) is fixedly connected to the bottom of the sliding ring (4), and the other end of the spring (3) is fixedly connected to the top of the support plate (1).

6. A gas meter bottom shell mold according to claim 1, characterized in that: Four of the telescopic rods (26) are rotatably connected to the outside of the sliding ring one (4) on the side away from the ejector rod (10), and the other four telescopic rods (26) are rotatably connected to the outside of the sliding ring two (9) on the side close to the ejector rod (10).

7. A gas meter bottom shell mold according to claim 2, characterized in that: The outer side of the movable ring (11) is slidably connected to the inside of the mounting plate (12), and the outer side of the movable ring (11) is fixedly connected to the inside of the lower mold (13).

8. A gas meter bottom shell mold according to claim 3, characterized in that: The interior of the air inlet (17) is connected to the interior of the flow hole (18), and the exterior of the telescopic rod (26) is slidably connected to the interior of the top outlet groove (22).

9. A gas meter bottom shell mold according to claim 3, characterized in that: The outer side of the pressure ring (14) is slidably connected to the inside of the groove (23), and the top of the sliding ring (4) is fixedly connected to the bottom of the pressure ring (14).

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