Mold vacuum control structure

Abstract

The mold vacuum control structure comprises a vacuum tank assembly, a mold assembly, a vacuum suction assembly and a header pipe, the vacuum tank assembly is connected with the mold assembly, one end of the header pipe is connected with the vacuum tank assembly, the other end of the header pipe is connected with the vacuum suction assembly, and the vacuum suction assembly can vacuumize the vacuum tank assembly in total. According to the mold vacuum control structure, a vacuum environment is provided for the mold assembly, the process of adsorbing, grabbing or putting down products is completed, a separation unit is arranged on the vacuum tank assembly and can separate the vacuum tanks, so that the vacuum tanks are conveniently controlled, meanwhile, mutual influence between the vacuum tanks is avoided, and the mold vacuum control structure is simple in structure and convenient to operate. The production cost can be reduced, the structural reliability is high, and the problem that the vacuum environment is disordered due to mutual influence between the vacuum tanks is solved.

Description

Technical Field

[0001] The utility model belongs to the field of vacuum control systems. Specifically, the utility model relates to a mold vacuum control structure. Background Art

[0002] In a vacuum control system, products are grabbed by vacuum negative pressure adsorption or released by eliminating vacuum. Usually, a vacuum tank is connected to a mold. The vacuum tank can provide a vacuum negative pressure environment for the mold. However, in actual production, it is usually necessary for molds to cooperate with each other to complete the production process of products, resulting in complex control of the vacuum tank. The vacuum tanks are easily affected by each other, leading to disorder of the vacuum environment and increasing production costs.

[0003] To solve the above problems, Patent Document 102129256B provides a vacuum control system that uses a vacuum pump to control the vacuum pressure and flow of process gas in a vacuum container. The vacuum container receives the process gas provided by a gas supply unit and performs processing on an object to be processed. The vacuum control system includes: a plurality of vacuum control valves respectively connected between each exhaust port and the vacuum pump, and the exhaust ports are arranged at different positions in the vacuum container; a pressure measurement unit that measures the vacuum pressure of the process gas provided to the object to be processed; and a control device that controls the opening degree of each of the plurality of vacuum control valves according to the measured vacuum pressure, but it cannot solve the above problems. Summary of the Utility Model

[0004] The present utility model is made to solve the above problems, and aims to provide a mold vacuum control structure with a simple structure, capable of reducing production costs, having strong structural reliability, and capable of avoiding the problem of disorder of the vacuum environment caused by mutual influence between vacuum tanks. To achieve the above object, the technical solution adopted by the present utility model is as follows:

[0005] The present utility model provides a mold vacuum control structure, having the following features: including a vacuum tank assembly, a mold assembly, a vacuum suction assembly, and a main pipe. The vacuum tank assembly is connected to the mold assembly. One end of the main pipe is connected to the vacuum tank assembly, and the other end of the main pipe is connected to the vacuum suction assembly. A separation unit is provided on the vacuum tank assembly.

[0006] In the mold vacuum control structure provided by the present utility model, it may further have the following features: the vacuum tank assembly includes a first vacuum tank and a second vacuum tank. The first vacuum tank is connected to a first vacuum pipe. One end of the first vacuum pipe is connected to the first vacuum tank, and the other end of the first vacuum pipe is connected to the main pipe. The second vacuum tank is connected to a second vacuum pipe. One end of the second vacuum pipe is connected to the second vacuum tank, and the other end of the second vacuum pipe is connected to the main pipe.

[0007] In the mold vacuum control structure provided by the present utility model, it may further have the following features: The mold assembly includes an upper mold and a lower mold. The upper mold is connected to a first vacuum tank through a first connecting pipeline, and the lower mold is connected to a second vacuum tank through a second connecting pipeline.

[0008] In the mold vacuum control structure provided by the present utility model, it may further have the following features: A first solenoid valve is provided on the first connecting pipeline, and a second solenoid valve is provided on the second connecting pipeline.

[0009] In the mold vacuum control structure provided by the present utility model, it may further have the following features: The separation unit includes a first check valve and a second check valve. The first check valve is arranged on the first vacuum pipe, and the second check valve is arranged on the second vacuum pipe.

[0010] In the mold vacuum control structure provided by the present utility model, it may further have the following features: A connecting pipe is provided between the first vacuum tank and the second vacuum tank, and a connecting valve is provided on the connecting pipe.

[0011] In the mold vacuum control structure provided by the present utility model, it may further have the following features: A first pressure relief valve and a first pressure gauge are provided on the first vacuum tank, and a second pressure relief valve and a second pressure gauge are provided on the second vacuum tank.

[0012] In the mold vacuum control structure provided by the present utility model, it may further have the following features: The vacuum suction assembly includes a vacuum suction pipe and a vacuum pump. One end of the vacuum suction pipe is connected to the vacuum pump, and the other end of the vacuum suction pipe is connected to the main pipe.

[0013] In the mold vacuum control structure provided by the present utility model, it may further have the following features: A third check valve is provided on the vacuum suction pipe.

[0014] In the mold vacuum control structure provided by the present utility model, it may further have the following features: The vacuum suction pipe is connected to a ventilation pipe, and a third solenoid valve is provided on the ventilation pipe.

[0015] The technical effect of the present utility model is as follows: The mold vacuum control structure provided by the present utility model includes a vacuum tank assembly, a mold assembly, a vacuum suction assembly, and a main pipe. The vacuum tank assembly is connected to the mold assembly. One end of the main pipe is connected to the vacuum tank assembly, and the other end of the main pipe is connected to the vacuum suction assembly. The vacuum suction assembly can evacuate the vacuum tank assembly through the main pipe, thereby providing a vacuum environment for the mold assembly to complete the process of adsorbing and grasping or releasing products. A separation unit is provided on the vacuum tank assembly, and the separation unit can separate the vacuum tanks, thereby facilitating the control of the vacuum tanks and avoiding mutual influence between the vacuum tanks.

[0016] Therefore, the mold vacuum control structure provided by the present utility model has a simple structure, can reduce production costs, has strong structural reliability, and avoids the problem of vacuum environment disorder caused by mutual influence between vacuum tanks. Description of the Drawings

[0017] This specification includes the following drawings, and the shown contents are respectively:

[0018] Figure 1 It is a schematic diagram of the system structure of the mold vacuum control structure in the embodiment of the present utility model.

[0019] Reference numerals in the figure are: 10 - vacuum tank assembly, 11 - first vacuum tank, 121 - first pressure relief valve, 122 - first pressure gauge, 12 - second vacuum tank, 121 - second pressure relief valve, 122 - second pressure gauge, 13 - first vacuum tube, 14 - second vacuum tube, 15 - connecting pipe, 151 - connecting valve, 20 - mold assembly, 21 - upper mold, 22 - lower mold, 23 - first connecting pipeline, 24 - second connecting pipeline, 25 - first solenoid valve, 26 - second solenoid valve, 30 - vacuum suction assembly, 31 - vacuum suction tube, 311 - third one - way valve, 32 - vacuum pump, 33 - ventilation pipe, 34 - third solenoid valve, 40 - main pipe, 50 - separation unit, 51 - first one - way valve, 52 - second one - way valve. Detailed Embodiments

[0020] The following is a more detailed description of the specific embodiments of the present invention with reference to the drawings, aiming to help those skilled in the art have a more complete, accurate, and in - depth understanding of the inventive concept and technical solution of the present invention, and to facilitate its implementation.

[0021] Figure 1 It is a schematic diagram of the system structure of the mold vacuum control structure in the embodiment of the present utility model.

[0022] As Figure 1 shown, the mold vacuum control structure provided by the present utility model includes a vacuum tank assembly 10, a mold assembly 20, a vacuum suction assembly 30, and a main pipe 40. The vacuum tank assembly 10 is connected to the mold assembly 20. One end of the main pipe 40 is connected to the vacuum tank assembly 10, and the other end of the main pipe 40 is connected to the vacuum suction assembly 30. The vacuum suction assembly 30 can evacuate the vacuum tank assembly 10 through the main pipe 40, thereby providing a vacuum environment for the mold assembly 20, evacuating or degassing the mold assembly 20 to complete the process of adsorbing, grasping, or releasing the product. A separation unit 50 is provided on the vacuum tank assembly 10. The separation unit 50 can separate the vacuum tanks, thereby facilitating the control of the vacuum tanks and avoiding mutual influence between the vacuum tanks.

[0023] The vacuum tank assembly 10 includes a first vacuum tank 11 and a second vacuum tank 12. The first vacuum tank 11 is connected to a first vacuum tube 13. One end of the first vacuum tube 13 is connected to the first vacuum tank 11, and the other end of the first vacuum tube 11 is connected to the main pipe 40. The second vacuum tank 11 is connected to a second vacuum tube 14. One end of the second vacuum tube 14 is connected to the second vacuum tank 12, and the other end of the second vacuum tube 14 is connected to the main pipe 40. The first vacuum tube 13, the second vacuum tube 14, and the main pipe 40 are connected through a tee fitting, so that the first vacuum tank 11 and the second vacuum tank 12 can respectively provide a vacuum environment for the mold assembly 20.

[0024] The mold assembly 20 includes an upper mold 21 and a lower mold 22. The upper mold 21 is connected to the first vacuum tank 11 through a first connecting pipeline 23. One end of the first connecting pipeline 23 is connected to the upper mold 21, and the other end of the first connecting pipeline 23 is connected to the first vacuum tank 11. The lower mold 22 is connected to the second vacuum tank 12 through a second connecting pipeline 24. One end of the second connecting pipeline 24 is connected to the lower mold 22, and the other end of the second connecting pipeline 24 is connected to the second vacuum tank 12. Thus, the first vacuum tank 11 can provide a vacuum environment for the upper mold 21, and the vacuum tank 12 can provide a vacuum environment for the lower mold 22, enabling the upper mold 21 and the lower mold 22 to cooperate to complete the product production process.

[0025] A first solenoid valve 25 is provided on the first connecting pipeline 23. The first solenoid valve 25 can control the flow or closure of the first connecting pipeline 23. When the first solenoid valve 25 is opened, the first connecting pipeline 23 is in flow, and the vacuum negative pressure in the first vacuum tank 11 is transmitted to the upper mold 21, enabling the upper mold 21 to adsorb and grasp the product. When the first solenoid valve 25 is closed, the first connecting pipeline 23 is closed, and the vacuum negative pressure in the first vacuum tank 11 is disconnected from the upper mold 21, causing the upper mold 21 to cancel the adsorption of the product and release the product. A second solenoid valve 26 is provided on the second connecting pipeline 24. The second solenoid valve 26 can control the flow or closure of the second connecting pipeline 24. When the second solenoid valve 26 is opened, the second connecting pipeline 24 is in flow, and the vacuum negative pressure in the second vacuum tank 12 is transmitted to the lower mold 22, enabling the lower mold 22 to adsorb and grasp the product. When the second solenoid valve 26 is closed, the second connecting pipeline 24 is closed, and the vacuum negative pressure in the second vacuum tank 12 is disconnected from the lower mold 22, causing the lower mold 22 to cancel the adsorption of the product and release the product.

[0026] A first pressure relief valve 111 and a first pressure gauge 112 are provided on the first vacuum tank 11. After the production stops, the first pressure relief valve 111 can eliminate the negative pressure in the first vacuum tank 11, ensuring the normal use of the first vacuum tank 11 and extending its service life. The first pressure gauge 112 can monitor the pressure in the first vacuum tank 11, facilitating the understanding of the vacuum environment in the first vacuum tank 11. A second pressure relief valve 121 and a second pressure gauge 122 are provided on the second vacuum tank 12. After the production stops, the second pressure relief valve 121 can eliminate the negative pressure in the second vacuum tank 12, ensuring the normal use of the second vacuum tank 12 and extending its service life. The second pressure gauge 122 can monitor the pressure in the second vacuum tank 12, facilitating the understanding of the vacuum environment in the second vacuum tank 12.

[0027] The vacuum suction assembly 30 includes a vacuum suction pipe 31 and a vacuum pump 32. One end of the vacuum suction pipe 31 is connected to the vacuum pump 32, and the other end is connected to the main pipe 40. The vacuum pump 32 can evacuate the first vacuum tank 11 and the second vacuum tank 12 through the vacuum suction pipe 31 and the main pipe 40, enabling the first vacuum tank 11 and the second vacuum tank 12 to provide vacuum negative pressure for the upper mold 21 and the lower mold 22 respectively.

[0028] The separation unit 50 includes a first one-way valve 51 and a second one-way valve 52. The first one-way valve 51 is arranged on the first vacuum pipe 13, restricting the flow direction in the first vacuum pipe 13 to only from the first vacuum tank 11 to the main pipe 40. The second one-way valve 52 is arranged on the second vacuum pipe 14, restricting the flow direction in the second vacuum pipe 14 to only from the second vacuum tank 12 to the main pipe 40, thus separating the first vacuum tank 11 and the second vacuum tank 12 and enabling the independent control of the upper mold 21 and the lower mold 22, avoiding mutual influence between the first vacuum tank 11 and the second vacuum tank 12.

[0029] A connecting pipe 15 is provided between the first vacuum tank 11 and the second vacuum tank 12. One end of the connecting pipe 15 is connected to the first vacuum tank 11, and the other end is connected to the second vacuum tank 12. A connecting valve 151 is provided on the connecting pipe 15. The connecting valve 151 can control the flow or closure of the connecting pipe 15, and the connecting valve 151 is normally closed.

[0030] A third one-way valve 311 is provided on the vacuum suction pipe 31. The third one-way valve 311 restricts the flow direction in the vacuum suction pipe 31 to only from the main pipe 40 into the vacuum pump 32, thus effectively preventing the oil in the vacuum pump 32 from being sucked back when the vacuum pump 32 stops, avoiding affecting the normal operation of the vacuum pump 32 and avoiding affecting the vacuum environment of the vacuum control system. The vacuum suction pipe 31 is connected to a ventilation pipe 33. One end of the ventilation pipe 33 is connected to the vacuum suction pipe 31, and the other end of the ventilation pipe 33 is communicated with the atmospheric environment. A third solenoid valve 34 is provided on the ventilation pipe 33. When the vacuum pump 32 is evacuating, the third solenoid valve 34 remains closed to ensure the normal operation of the vacuum pump 32; when the vacuum pump 32 stops, the third solenoid valve 34 closes, and air enters the vacuum pump 32 through the ventilation pipe 33, so that the vacuum pump 32 is under normal pressure when it stops, extending the service life of the vacuum pump 32.

[0031] The three vacuum suction pipes 31 of the three groups of vacuum suction assemblies 30 are all connected to the main pipe 40, so that the three vacuum pumps 32 are connected. At least one vacuum pump 32 can be turned on according to the required vacuum level for production, so as to meet the required vacuum level for production and improve the reliability of the structure.

[0032] When the mold vacuum control structure provided by the present utility model controls the upper mold 21 and the lower mold 22 to work, the communication valve 151 is closed, the first solenoid valve 25 is closed, the second solenoid valve 26 is closed, and the vacuum suction assembly 30 is started to evacuate the first vacuum tank 11 and the second vacuum tank 12 through the first vacuum tube 13 and the second vacuum tube 14 respectively. When the upper mold 21 is evacuated, the communication valve 151 is closed, the first solenoid valve 25 is opened, the second solenoid valve 26 is closed, the upper mold 21 consumes the vacuum in the first vacuum tank 12, and the second one-way valve 52 can play an isolation role to prevent the upper mold 21 from consuming the vacuum in the second vacuum tank 12; when the upper mold 21 is degassed, the first solenoid valve 25 is closed to disconnect the upper mold 21 from the first vacuum tank 11, and the upper mold 21 is degassed. When the lower mold 22 is evacuated, the communication valve 151 is closed, the first solenoid valve 25 is closed, the second solenoid valve 26 is opened, the lower mold 22 consumes the vacuum in the second vacuum tank 12, and the first one-way valve 51 can play an isolation role to prevent the lower mold 22 from consuming the vacuum in the first vacuum tank 12; when the lower mold 22 is degassed, the second solenoid valve 26 is closed to disconnect the lower mold 22 from the second vacuum tank 12, and the lower mold 22 is degassed. When the upper mold 21 and the lower mold 22 need to be evacuated simultaneously, the communication valve 151 is opened, the first solenoid valve 25 is opened, the second solenoid valve 26 is opened, so that the first vacuum tank 11 and the second vacuum tank 12 can cooperate with the upper mold 21 and the lower mold 22 to work together. And during the working process of the upper mold 21 and the lower mold 22, the vacuum suction assembly 30 can continuously work to timely supplement the consumed vacuum pressure in the first vacuum tank 11 or the second vacuum tank 12, and can maximize the capacity of the vacuum pump 32. Therefore, the mold vacuum control structure provided by the present utility model can independently control the upper mold 21 and the lower mold 22, and the control structure and control process are simple, effectively reducing the production cost and avoiding the mutual influence between the first vacuum tank 11 and the second vacuum tank 12 during the independent working process of the upper mold 21 or the lower mold 22, and the structural reliability is strong.

[0033] Functions and effects of the embodiment

[0034] The mold vacuum control structure provided by the present utility model includes a vacuum tank assembly 10, a mold assembly 20, a vacuum suction assembly 30, and a main pipe 40. The vacuum tank assembly 10 is connected to the mold assembly 20. One end of the main pipe 40 is connected to the vacuum tank assembly 10, and the other end of the main pipe 40 is connected to the vacuum suction assembly 30. The vacuum suction assembly 30 can evacuate the vacuum tank assembly 10 through the main pipe 40, thereby providing a vacuum environment for the mold assembly 20, evacuating or degassing the mold assembly 20, and completing the process of adsorbing and grasping or putting down the product. A separation unit 50 is provided on the vacuum tank assembly 10. The separation unit 50 can separate the vacuum tanks, thereby facilitating the control of the vacuum tanks and avoiding mutual influence between the vacuum tanks. The mold vacuum control structure provided by the present utility model has a simple structure, can reduce production costs, has strong structural reliability, and avoids the problem of disorder of the vacuum environment caused by mutual influence between the vacuum tanks.

[0035] When the mold vacuum control structure provided by the present utility model is used to control the upper mold 21 and the lower mold 22 to work, the communication valve 151 is closed, the first solenoid valve 25 is closed, the second solenoid valve 26 is closed, and the vacuum suction assembly 30 is started to evacuate the first vacuum tank 11 and the second vacuum tank 12 through the first vacuum pipe 13 and the second vacuum pipe 14 respectively. When evacuating the upper mold 21, the communication valve 151 is closed, the first solenoid valve 25 is opened, the second solenoid valve 26 is closed, and the upper mold 21 consumes the vacuum in the first vacuum tank 12. The second one-way valve 52 can play an isolation role to avoid the upper mold 21 consuming the vacuum in the second vacuum tank 12. When degassing the upper mold 21, the first solenoid valve 25 is closed to disconnect the upper mold 21 from the first vacuum tank 11, and the upper mold 21 is degassed. When evacuating the lower mold 22, the communication valve 151 is closed, the first solenoid valve 25 is closed, the second solenoid valve 26 is opened, and the lower mold 22 consumes the vacuum in the second vacuum tank 12. The first one-way valve 51 can play an isolation role to avoid the lower mold 22 consuming the vacuum in the first vacuum tank 12. When degassing the lower mold 22, the second solenoid valve 26 is closed to disconnect the lower mold 22 from the second vacuum tank 12, and the lower mold 22 is degassed. When the upper mold 21 and the lower mold 22 need to be evacuated simultaneously, the communication valve 151 is opened, the first solenoid valve 25 is opened, the second solenoid valve 26 is opened, so that the first vacuum tank 11 and the second vacuum tank 12 can cooperate with the upper mold 21 and the lower mold 22 to work together. And during the working process of the upper mold 21 and the lower mold 22, the vacuum suction assembly 30 can continuously work to timely supplement the consumed vacuum pressure in the first vacuum tank 11 or the second vacuum tank 12, and can maximize the capacity of the vacuum pump 32. Therefore, the mold vacuum control structure provided by the present utility model can independently control the upper mold 21 and the lower mold 22, and the control structure and control process are simple, effectively reducing production costs and avoiding mutual influence between the first vacuum tank 11 and the second vacuum tank 12 during the independent working process of the upper mold 21 or the lower mold 22, and has strong structural reliability.

[0036] The above has made an exemplary description of the present utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present utility model; or without improvement, the above concept and technical solution of the present utility model are directly applied to other occasions, they are all within the protection scope of the present utility model.

Claims

1. A mold vacuum control structure, characterized in that, It includes a vacuum tank assembly (10), a mold assembly (20), a vacuum suction assembly (30), and a main pipe (40). The vacuum tank assembly (10) is connected to the mold assembly (20). One end of the main pipe (40) is connected to the vacuum tank assembly (10), and the other end of the main pipe (40) is connected to the vacuum suction assembly (30). A separation unit (50) is provided on the vacuum tank assembly (10).

2. The mold vacuum control structure according to claim 1, wherein, The vacuum tank assembly (10) includes a first vacuum tank (11) and a second vacuum tank (12). The first vacuum tank (11) is connected with a first vacuum pipe (13). One end of the first vacuum pipe (13) is connected to the first vacuum tank (11), and the other end of the first vacuum pipe (13) is connected to the main pipe (40). The second vacuum tank (12) is connected with a second vacuum pipe (14). One end of the second vacuum pipe (14) is connected to the second vacuum tank (12), and the other end of the second vacuum pipe (14) is connected to the main pipe (40).

3. The mold vacuum control structure according to claim 2, wherein The mold assembly (20) includes an upper mold (21) and a lower mold (22). The upper mold (21) is connected to the first vacuum tank (11) through a first connecting pipeline (23), and the lower mold (22) is connected to the second vacuum tank (12) through a second connecting pipeline (24).

4. The mold vacuum control structure according to claim 3, characterized in that A first solenoid valve (25) is provided on the first connecting pipeline (23), and a second solenoid valve (26) is provided on the second connecting pipeline (24).

5. The mold vacuum control structure according to claim 4, characterized in that, The separation unit (50) includes a first check valve (51) and a second check valve (52). The first check valve (51) is arranged on the first vacuum pipe (13), and the second check valve (52) is arranged on the second vacuum pipe (14).

6. The mold vacuum control structure according to claim 5, wherein A communicating pipe (15) is provided between the first vacuum tank (11) and the second vacuum tank (12), and a communicating valve (151) is provided on the communicating pipe (15).

7. The mold vacuum control structure according to claim 6, characterized in that, A first pressure relief valve (111) and a first pressure gauge (112) are provided on the first vacuum tank (11), and a second pressure relief valve (121) and a second pressure gauge (122) are provided on the second vacuum tank (12).

8. The mold vacuum control structure according to any one of claims 1 to 7, characterized in that, The vacuum suction assembly (30) includes a vacuum suction pipe (31) and a vacuum pump (32). One end of the vacuum suction pipe (31) is connected to the vacuum pump (32), and the other end of the vacuum suction pipe (31) is connected to the main pipe (40).

9. The mold vacuum control structure according to claim 8, wherein, A third check valve (311) is provided on the vacuum suction pipe (31).

10. The mold vacuum control structure according to claim 9, characterized in that, The vacuum suction pipe (31) is connected with a ventilation pipe (33), and a third solenoid valve (34) is provided on the ventilation pipe (33).

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