A vacuum pump diaphragm structure manufacturing mold

Abstract

This utility model discloses a manufacturing mold for a vacuum pump diaphragm structure component, belonging to the field of mold technology, aiming to solve the technical problem of inconvenient demolding in existing vacuum pump diaphragm structure component manufacturing molds. The mold includes a lower mold body and an upper mold body, symmetrically distributed. The lower mold body has a mold cavity, and the upper mold body has a punch. Demolding modules are sealed and embedded inside the mold cavity and on the surface of the punch. Ejector rods are provided on both the lower and upper mold bodies, aligned with the demolding modules. One end of the ejector rod passes through the corresponding lower and upper mold bodies and connects to the demolding module. A shell is fixed at a position corresponding to the ejector rod on the opposite side of the lower and upper mold bodies, with the ejector rod passing through the shell. A push plate is movably disposed inside the shell and fixedly sleeved on the ejector rod. This vacuum pump diaphragm structure component manufacturing mold enables rapid demolding, greatly improving production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, specifically relating to a mold for manufacturing vacuum pump diaphragm structure components. Background Technology

[0002] The diaphragm of a vacuum pump is a key component, and its quality directly affects the pump's performance and lifespan. During operation, the diaphragm needs to continuously reciprocate to draw in and expel gas, thus creating a vacuum environment within the pump. Therefore, the diaphragm must possess excellent elasticity, sealing properties, and wear resistance to ensure stable and efficient operation of the vacuum pump.

[0003] Currently, vacuum pump diaphragm components are mainly manufactured using molds. However, existing molds for manufacturing vacuum pump diaphragm components have many shortcomings. In terms of demolding, many traditional molds lack effective demolding mechanisms, resulting in the molded diaphragm components often fitting tightly to the mold cavity or punch, making them difficult to remove smoothly. This not only increases the difficulty and time of demolding but also easily leads to damage to the diaphragm components during demolding, such as tearing and deformation, seriously affecting product quality and yield. Therefore, this application proposes a mold for manufacturing vacuum pump diaphragm components. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a manufacturing mold for vacuum pump diaphragm structure components, which aims to solve the technical problem of inconvenient demolding of existing vacuum pump diaphragm structure component manufacturing molds.

[0005] Technical solution

[0006] To solve the above-mentioned technical problems, this utility model provides a manufacturing mold for a vacuum pump diaphragm structure, including a lower mold body and an upper mold body, which are symmetrically distributed. The lower mold body is provided with a mold cavity, and the upper mold body is provided with a punch. A release module is sealed and embedded inside the mold cavity and on the surface of the punch. A push rod is provided on both the lower mold body and the upper mold body, and the push rod is aligned with the release module. One end of the push rod passes through the corresponding lower mold body and the upper mold body and is connected to the release module.

[0007] Preferably, a shell is fixed at a position corresponding to the ejector rod on the side of the lower mold body and the upper mold body that is far apart from each other. The ejector rod passes through the shell, and a push plate is movably arranged inside the shell. The push plate is fixedly sleeved on the ejector rod, and a spring is arranged between the push plate and the corresponding lower mold body and upper mold body. The spring is sleeved on the ejector rod.

[0008] Preferably, the punch and the mold cavity are provided with an adapter groove, a sealing pad is fixedly embedded in the adapter groove, the push rod passes through the sealing pad, the ejector module is fitted with the adapter groove and is sealed and fitted with the sealing pad.

[0009] Preferably, the corner of the detachment module facing the top rod is provided with a rounded chamfer.

[0010] Preferably, the lower mold body and the upper mold body are configured as elongated structures. Multiple mold cavities and punches are symmetrically distributed on the opposite side of the lower mold body and the upper mold body. Each mold cavity and punch is provided with a release plate, ejector rod, shell, push plate, spring, adapter groove and sealing pad. A pressure plate is provided on the side of the lower mold body and the upper mold body that is far apart from each other. The pressure plate is distributed along the length direction of the lower mold body and the upper mold body. Multiple ejector rods penetrating the shell are fixedly connected to the pressure plate. A connecting lug is provided on the pressure plate, and a connecting hole is opened on the connecting lug.

[0011] Preferably, both ends of the lower mold body and the upper mold body are provided with connecting plates, and the connecting plates are provided with mounting holes.

[0012] Preferably, the lower mold body and the upper mold body are provided with air supply holes, which connect the adapter groove and the internal space of the shell. The push plate is hollowed out. Each side wall of the shell is connected with a secondary air pipe. The ends of the multiple secondary air pipes on the lower mold body and the upper mold body are respectively connected to a main air pipe. One end of the main air pipe is provided with an air nozzle connector. The main air pipe is fixed with a fixing rod between the corresponding lower mold body and the upper mold body.

[0013] Beneficial effects

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention, by setting up structures such as ejector pins, ejector modules, push plates, and springs, allows multiple ejector pins to move simultaneously by simply pushing the pressure plate after molding, so that the ejector module can push the molded part out of the mold cavity or punch, achieving rapid demolding and greatly improving production efficiency.

[0016] In this invention, through the cooperation of the main air pipe, the auxiliary air pipe and the air supply hole, the air nozzle connector is connected to the air source. During the demolding process, the demolding module is released from the adapter groove and acts on the molded part. At the same time, the gas is ejected from the adapter groove and fills the gap between the molding vacuum pump diaphragm structure and the mold cavity and the punch, thereby realizing a rapid demolding operation and further improving the demolding efficiency.

[0017] In this invention, by opening an adapter groove in the punch and the mold cavity and embedding a sealing pad, the ejector module fits into the adapter groove and is sealed and adhered to the sealing pad, which effectively prevents gas leakage during the molding process, ensures stable pressure inside the mold, and thus makes the quality of the molded parts more uniform and reliable. Attached image description:

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This utility model Figure 1 Enlarged view of point A in the image;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the upper mold body in this utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged view of point B in the image.

[0023] The markings in the attached diagram are as follows: 1. Lower mold body; 2. Upper mold body; 3. Mold cavity; 4. Demolding module; 5. Connecting plate; 6. Shell; 7. Ejector rod; 8. Pressure plate; 9. Connecting lug; 10. Secondary air pipe; 11. Main air pipe; 12. Fixing rod; 13. Mounting hole; 14. Air nozzle connector; 15. Punch; 16. Push plate; 17. Spring; 18. Air supply hole; 19. Adaptor groove; 20. Sealing pad. Detailed Implementation

[0024] 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.

[0025] This embodiment provides a mold for manufacturing a vacuum pump diaphragm structure, the structural schematic of which is shown below. Figures 1-4 As shown, it includes a lower mold body 1 and an upper mold body 2. The lower mold body 1 and the upper mold body 2 are elongated and symmetrically distributed. Both ends of the lower mold body 1 and the upper mold body 2 are provided with connecting plates 5. The connecting plates 5 are provided with mounting holes 13, which can be used for mold installation and positioning.

[0026] In this embodiment, the lower mold body 1 is provided with multiple mold cavities 3, and the upper mold body 2 is provided with multiple punches 15. The mold cavities 3 and punches 15 are used to form the vacuum pump diaphragm structure. The mold cavity 3 and the surface of the punches 15 are both sealed and embedded with release modules 4. The lower mold body 1 and the upper mold body 2 are both provided with ejector rods 7, which are aligned with the release modules 4. One end of the ejector rod 7 passes through the corresponding lower mold body 1 and upper mold body 2 and is connected to the release module 4.

[0027] Furthermore, a shell 6 is fixed at a position corresponding to the ejector pin 7 on the opposite side of the lower mold body 1 and the upper mold body 2. The ejector pin 7 passes through the shell 6, and a push plate 16 is movably disposed inside the shell 6. The push plate 16 is fixedly sleeved on the ejector pin 7, and a spring 17 is disposed between the push plate 16 and the corresponding lower mold body 1 and upper mold body 2. The spring 17 is sleeved on the ejector pin 7. An adapter groove 19 is opened in the punch 15 and the mold cavity 3. A sealing pad 20 is fixedly embedded inside the adapter groove 19. The ejector pin 7 passes through the sealing pad 20, and the ejector module 4 fits into the adapter groove 19 and is sealed to the sealing pad 20. This ensures the sealing of the mold interior and prevents air leakage during the molding process. In the natural state, the elastic force of the spring 17 causes the push plate 16 to move away from the lower mold body 1 or the upper mold body 2, and the ejector pin 7 is in a retracted state. At this time, the ejector pin 7 drives the ejector module 4 to fit into the adapter groove 19 and be sealed to the sealing pad 20. The corner of the detachable module 4 facing the top rod 7 is provided with a rounded chamfer. This design makes it easy for the detachable module 4 to be inserted into the adapter slot 19.

[0028] Furthermore, in this embodiment, a pressure plate 8 is provided on the side of the lower mold body 1 and the upper mold body 2 that are far apart from each other. The pressure plate 8 is distributed along the length direction of the lower mold body 1 and the upper mold body 2, and multiple push rods 7 penetrating the shell cylinder 6 are fixedly connected to the pressure plate 8. A connecting lug 9 is provided on the pressure plate 8, and a connecting hole is opened on the connecting lug 9. The pressure plate 8 can simultaneously push the push rods 7 to force the demolding module 4 to disengage from the adapter groove 19 for demolding operation.

[0029] In a preferred embodiment, air supply holes 18 are provided inside the lower mold body 1 and the upper mold body 2, connecting the adapter groove 19 and the internal space of the shell 6. Each shell 6 has a secondary air pipe 10 connected to its side wall. Multiple secondary air pipes 10 on the lower mold body 1 and the upper mold body 2 are connected to main air pipes 11 at their ends. One end of each main air pipe 11 has a nozzle connector 14, and a fixing rod 12 is fixed between the main air pipe 11 and the corresponding lower mold body 1 and upper mold body 2. An air source can be connected through the nozzle connector 14 to supply gas into the mold for demolding.

[0030] In actual use, the mold is installed on the corresponding molding equipment and fixed through the mounting hole 13. The raw material of the vacuum pump diaphragm structure is injected into the mold cavity 3 of the lower mold body 1, and then the mold is closed so that the punch 15 of the upper mold body 2 cooperates with the mold cavity 3 of the lower mold body 1 to form the raw material. During the molding process, the air source is connected through the air nozzle connector 14. The gas enters the adapter groove 19 and the internal space of the shell 6 through the main air pipe 11, the auxiliary air pipe 10 and the air supply hole 18. Since the demolding module 4 is sealed and fitted with the sealing pad 20, the gas pressure can maintain a stable molding environment inside the mold. After molding is completed, the mold is opened, and the pressure plate 8 is pushed by the external equipment. The pressure plate 8 drives the ejector rod 7 to move. The ejector rod 7 pushes the demolding module 4 to eject the formed vacuum pump diaphragm structure from the mold cavity 3 or the punch 15. At the same time, the gas is blown out from the adapter groove 19 through the main air pipe 11, the auxiliary air pipe 10, the air supply hole 18, the shell 6, and then to assist demolding.

[0031] Working principle:

[0032] The raw material for the vacuum pump diaphragm structure is injected into the cavity 3 of the lower mold body 1. The lower mold body 1 and the upper mold body 2 approach each other and close under the drive of the molding equipment. The punch 15 on the upper mold body 2 precisely matches the cavity 3 on the lower mold body 1 to form the raw material and gradually shape it into the required vacuum pump diaphragm structure.

[0033] After molding is completed, the molding equipment drives the lower mold body 1 and the upper mold body 2 to separate. Then, an external device pushes the pressure plate 8, which drives multiple ejector rods 7 fixedly connected to it to move simultaneously. The ejector rods 7 slide inside the shell 6, overcoming the elastic force of the spring 17, and push the demolding module 4 fixed at the end of the ejector rod 7 to move outward. The demolding module 4 ejects the molded vacuum pump diaphragm structure from the mold cavity 3 or the punch 15. At the same time, the air source is connected through the air nozzle connector 14, and the gas enters the adapter groove 19 and the internal space of the shell 6 through the main air pipe 11, the auxiliary air pipe 10 and the air supply hole 18. Since the demolding module 4 is disengaged from the adapter groove 19, the gas will be ejected from the adapter groove 19, filling the gap between the molded vacuum pump diaphragm structure and the mold cavity 3 and the punch 15, realizing a rapid demolding operation. After demolding is completed, the spring 17 will push the push plate 16 and the ejector rods 7 to reset, preparing for the next molding.

[0034] All technical features in this embodiment can be freely combined according to actual needs.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is 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 mold for manufacturing a vacuum pump diaphragm structure, comprising a lower mold body (1) and an upper mold body (2), characterized in that: The lower mold body (1) and the upper mold body (2) are symmetrically distributed. The lower mold body (1) is provided with a mold cavity (3), and the upper mold body (2) is provided with a punch (15). The mold cavity (3) and the surface of the punch (15) are both sealed with a release module (4). The lower mold body (1) and the upper mold body (2) are both provided with ejector rods (7). The ejector rods (7) are aligned with the release module (4). One end of the ejector rod (7) passes through the corresponding lower mold body (1) and upper mold body (2) and is connected to the release module (4).

2. The mold for manufacturing a vacuum pump diaphragm structure according to claim 1, characterized in that, A shell cylinder (6) is fixed at a position corresponding to the ejector rod (7) on the side of the lower mold body (1) and the upper mold body (2) that are far apart from each other. The ejector rod (7) passes through the shell cylinder (6). A push plate (16) is movably arranged inside the shell cylinder (6). The push plate (16) is fixedly sleeved on the ejector rod (7). A spring (17) is arranged between the push plate (16) and the corresponding lower mold body (1) and upper mold body (2). The spring (17) is sleeved on the ejector rod (7).

3. The mold for manufacturing a vacuum pump diaphragm structure according to claim 2, characterized in that, The punch (15) and the mold cavity (3) are provided with an adapter groove (19). A sealing pad (20) is fixedly embedded inside the adapter groove (19). The push rod (7) passes through the sealing pad (20). The release module (4) fits into the adapter groove (19) and is sealed to the sealing pad (20).

4. The manufacturing mold for a vacuum pump diaphragm structure according to claim 3, characterized in that, The corner of the detachment module (4) facing the top rod (7) is provided with a rounded chamfer.

5. A mold for manufacturing a vacuum pump diaphragm structure according to claim 3, characterized in that, The lower mold body (1) and the upper mold body (2) are configured as long strip structures. Multiple mold cavities (3) and punches (15) are symmetrically distributed on the opposite side of the lower mold body (1) and the upper mold body (2). Each mold cavity (3) and punch (15) is provided with a release plate (4), a push rod (7), a shell cylinder (6), a push plate (16), a spring (17), a fitting groove (19), and a sealing pad (20). A pressure plate (8) is provided on the side of the lower mold body (1) and the upper mold body (2) that is far away from each other. The pressure plate (8) is distributed along the length direction of the lower mold body (1) and the upper mold body (2). Multiple push rods (7) that penetrate the shell cylinder (6) are fixedly connected to the pressure plate (8). A connecting lug (9) is provided on the pressure plate (8), and a connecting hole is provided on the connecting lug (9).

6. A mold for manufacturing a vacuum pump diaphragm structure according to claim 5, characterized in that, Both ends of the lower mold body (1) and the upper mold body (2) are provided with connecting plates (5), and the connecting plates (5) are provided with mounting holes (13).

7. A vacuum pump diaphragm structure manufacturing mold according to claim 5, wherein The lower mold body (1) and the upper mold body (2) are provided with air supply holes (18), which connect the adapter groove (19) and the internal space of the shell (6). The push plate (16) is set in a hollow shape. Each shell (6) is connected to a secondary air pipe (10). The ends of the multiple secondary air pipes (10) on the lower mold body (1) and the upper mold body (2) are respectively connected to a main air pipe (11). One end of the main air pipe (11) is provided with an air nozzle connector (14). The main air pipe (11) is fixed with a fixing rod (12) between the corresponding lower mold body (1) and upper mold body (2).

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