Tank continuous negative pressure mechanism for plastic uptake

Abstract

The utility model relates to the technical field of blister, in particular to a continuous negative pressure mechanism for a blister tank, which comprises a bottom plate, a negative pressure tank, a vacuum pump and a pressure controller, one end of the top of the bottom plate is connected with a connecting sleeve through a support rod, and the negative pressure tank is sleeved in the connecting sleeve. A sleeve shell is mounted on one side of the connecting sleeve through bolts, a pressure controller is mounted in the sleeve shell through screws, and a vacuum pump is mounted at the top of the bottom plate and located on one side of the negative pressure tank through a mounting base. An input opening in the top of the negative pressure tank is connected with a second conveying pipe, an electromagnetic valve is arranged on the second conveying pipe, one end of the second conveying pipe is connected with a filter cartridge through a clamping cover, a metal filter screen is installed in the filter cartridge through a screw, and the other end of the filter cartridge is connected with a first conveying pipe through a clamping cover; the pressure controller can automatically control the vacuum pump to start to work, continuous vacuumizing is achieved, continuous blister work can be achieved conveniently, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blister packaging, in particular to a continuous negative pressure mechanism for a blister packaging tank. Background Art

[0002] Blistering is a plastic processing technology. The main principle is to heat and soften the flat plastic hard sheet, then use vacuum adsorption to the mold surface, and then cool it to form. This technical process is widely used in various industries. According to the thickness of the molding material, blistering can be divided into thick plate blistering and ordinary blistering. Thick plate blistering, also known as thick sheet blistering, refers to the blistering process in which the molding material thickness exceeds 2 mm (generally ranging from 2-12 mm, or even thicker). Materials of this thickness cannot be automatically blistered and need to be processed on a special semi-automatic blister forming machine; the blister equipment needs to be installed with a tank negative pressure mechanism to achieve blister forming of heated plastic sheets.

[0003] The existing blister tank cannot automatically control the vacuum pump to start working and realize continuous vacuuming, which is not convenient for continuous blister work and has low production efficiency. Therefore, a continuous negative pressure mechanism for the blister tank is proposed. The pressure controller automatically controls the vacuum pump to start working and realizes continuous vacuuming, which is convenient for continuous blister work and greatly improves production efficiency. Summary of the invention

[0004] In view of the problems in the prior art, the utility model provides a continuous negative pressure mechanism for a tank body for blister forming. The pressure controller automatically controls the vacuum pump to start working, thereby achieving continuous vacuuming, facilitating continuous blister forming work, and greatly improving production efficiency.

[0005] The technical solution adopted by the utility model to solve the technical problem is a continuous negative pressure mechanism for a blister tank, comprising a bottom plate, a negative pressure tank, a vacuum pump and a pressure controller, wherein one end of the top of the bottom plate is connected to a connecting sleeve through a support rod, the negative pressure tank is sleeved in the connecting sleeve, a sleeve shell is installed on one side of the connecting sleeve through bolts, and a pressure controller is installed in the sleeve shell through screws, and a vacuum pump is installed on the top of the bottom plate and on one side of the negative pressure tank through a mounting seat;

[0006] The top input port of the negative pressure tank is connected to the No. 2 delivery pipe and an electromagnetic valve is arranged on the No. 2 delivery pipe, one end of the No. 2 delivery pipe is connected to a filter cartridge via a snap-fit ​​cover, a metal filter is installed in the filter cartridge via screws and the other end of the filter cartridge is connected to the No. 1 delivery pipe via a snap-fit ​​cover, and a time relay switch is installed at the top of the negative pressure tank and on one side of the electromagnetic valve via screws.

[0007] By adopting the above technical solution, the solenoid valve is opened to allow the airflow to quickly enter the negative pressure tank, so that the blister mold automatically blister-forms the heated plastic sheet, and the time relay switch is used to automatically control the opening time of the solenoid valve, and the solenoid valve is automatically closed after the set time is reached, thereby controlling the blister time;

[0008] The metal filter in the filter cartridge is used to filter impurities in the gas during blistering to prevent them from entering the negative pressure tank. When the pressure in the negative pressure tank is lower than the set value of the pressure controller, the pressure controller will automatically control the vacuum pump to start working and achieve continuous vacuuming, which is convenient for continuous blistering and greatly improves production efficiency.

[0009] Specifically, the detection end of the pressure controller is located in the negative pressure tank, and the output end of the pressure controller is electrically connected to the input end of the vacuum pump through a wire.

[0010] Specifically, the output end of the time relay switch is electrically connected to the input end of the solenoid valve through a wire.

[0011] Specifically, a pressure gauge is installed on one side of the negative pressure tank by means of screws, and a detection end of the pressure gauge is located inside the negative pressure tank.

[0012] Specifically, the suction end of the vacuum pump is located in the negative pressure tank.

[0013] Specifically, the No. 1 delivery pipe and the No. 2 delivery pipe are both connected to the filter cartridge.

[0014] Beneficial effects of the utility model:

[0015] The utility model discloses a continuous negative pressure mechanism for a tank body for blister forming. The electromagnetic valve is opened to allow airflow to quickly enter the negative pressure tank, so that the blister mold can automatically blister the heated plastic sheet. The time relay switch is used to automatically control the opening time of the electromagnetic valve, which is automatically closed after the set time is reached to control the blister forming time. The metal filter in the filter cylinder is used to filter impurities in the gas during blister forming to prevent them from entering the negative pressure tank.

[0016] The utility model discloses a continuous negative pressure mechanism for a blister tank. When the pressure in the negative pressure tank is lower than the set value of the pressure controller, the pressure controller will automatically control the vacuum pump to start working, thereby achieving continuous vacuuming, facilitating continuous blistering and greatly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a side view of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the snap-fit ​​cover and metal filter screen of the utility model;

[0021] In the figure: 1. No. 1 delivery pipe; 2. Filter cartridge; 3. No. 2 delivery pipe; 4. Solenoid valve; 5. Time relay switch; 6. Negative pressure tank; 7. Housing; 8. Connecting sleeve; 9. Vacuum pump; 10. Bottom plate; 11. Support rod; 12. Pressure controller; 13. Pressure gauge; 14. Metal filter; 15. Snap-on cover. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] The pressure controller 12 will automatically control the vacuum pump 9 to start working, realize continuous vacuuming, facilitate continuous blistering, and greatly improve production efficiency. Figure 1-3 As shown, the utility model of a continuous negative pressure mechanism for a blister tank comprises a bottom plate 10, a negative pressure tank 6, a vacuum pump 9 and a pressure controller 12. The top end of the bottom plate 10 is connected to a connecting sleeve 8 through a support rod 11. The negative pressure tank 6 is sleeved in the connecting sleeve 8. A sleeve shell 7 is installed on one side of the connecting sleeve 8 through bolts, and a pressure controller 12 is installed in the sleeve shell 7 through screws. The top of the bottom plate 10 and located on one side of the negative pressure tank 6 is installed with a vacuum pump 9 through a mounting seat;

[0024] The top input port of the negative pressure tank 6 is connected to the No. 2 delivery pipe 3 and the No. 2 delivery pipe 3 is provided with a solenoid valve 4, one end of the No. 2 delivery pipe 3 is connected to the filter cartridge 2 through a snap-fit ​​cover 15, a metal filter screen 14 is installed in the filter cartridge 2 through screws and the other end of the filter cartridge 2 is connected to the No. 1 delivery pipe 1 through the snap-fit ​​cover 15, and a time relay switch 5 is installed on the top of the negative pressure tank 6 and on one side of the solenoid valve 4 through screws.

[0025] When in use, the solenoid valve 4 is opened to allow the airflow to quickly enter the negative pressure tank 6, so that the blister mold automatically blister-forms the heated plastic sheet. The time relay switch 5 is used to automatically control the opening time of the solenoid valve 4, and automatically closes after reaching the set time to control the blister time;

[0026] The metal filter 14 in the filter cartridge 2 is used to filter impurities in the gas during the blistering process to prevent them from entering the negative pressure tank 6. When the pressure in the negative pressure tank 6 is lower than the set value of the pressure controller 12, the pressure controller 12 will automatically control the vacuum pump 9 to start working, thereby achieving continuous vacuuming, facilitating continuous blistering, and greatly improving production efficiency.

[0027] For example, Figure 1 As shown, the utility model also includes that the detection end of the pressure controller 12 is located in the negative pressure tank 6, and the output end of the pressure controller 12 is electrically connected to the input end of the vacuum pump 9 through a wire.

[0028] During use, when the pressure in the negative pressure tank 6 is lower than the set value of the pressure controller 12, the pressure controller 12 will automatically control the vacuum pump 9 to start working, thereby achieving continuous vacuuming.

[0029] For example, Figure 1 As shown, the utility model also includes that the output end of the time relay switch 5 is electrically connected to the input end of the solenoid valve 4 through a wire.

[0030] When in use, the time relay switch 5 is used to automatically control the opening time of the electromagnetic valve 4, and the electromagnetic valve 4 is automatically closed after the set time is reached, so as to control the time of the blister.

[0031] For example, Figure 2 As shown, the utility model also includes that a pressure gauge 13 is installed on one side of the negative pressure tank 6 by screws, and the detection end of the pressure gauge 13 is located inside the negative pressure tank 6.

[0032] When in use, the pressure gauge 13 is used to detect the pressure value in the negative pressure tank 6. When the pressure value exceeds the safe value, the vacuum pump 9 can be turned off in time to avoid damaging the negative pressure tank 6.

[0033] For example, Figure 1 As shown, the utility model also includes that the suction end of the vacuum pump 9 is located in the negative pressure tank 6.

[0034] When in use, the vacuum pump 9 is turned on to evacuate the negative pressure tank 6 .

[0035] For example, Figure 3 As shown, the utility model also includes that the No. 1 delivery pipe 1 and the No. 2 delivery pipe 3 are both connected to the filter cartridge 2.

[0036] When the utility model is used, the air inlet of the No. 1 delivery pipe 1 is connected to the air outlet of the blister mold, the vacuum pump 9 is turned on to evacuate the negative pressure tank 6, and the pressure gauge 13 is used to detect the pressure value in the negative pressure tank 6. When the pressure exceeds the safety value, the vacuum pump 9 is turned off in time to avoid damaging the negative pressure tank 6;

[0037] Open the solenoid valve 4 to allow the airflow to quickly enter the negative pressure tank 6, so that the blister mold automatically blister-forms the heated plastic sheet. The time relay switch 5 is used to automatically control the opening time of the solenoid valve 4, and automatically closes after reaching the set time to control the blister time;

[0038] The metal filter 14 in the filter cartridge 2 is used to filter impurities in the gas during the blistering process to prevent them from entering the negative pressure tank 6. When the pressure in the negative pressure tank 6 is lower than the set value of the pressure controller 12, the pressure controller 12 will automatically control the vacuum pump 9 to start working, thereby achieving continuous vacuuming, facilitating continuous blistering, and greatly improving production efficiency.

[0039] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A continuous negative pressure mechanism for a blister tank, characterized in that: It comprises a base plate (10), a negative pressure tank (6), a vacuum pump (9) and a pressure controller (12); one end of the top of the base plate (10) is connected to a connecting sleeve (8) via a support rod (11); the negative pressure tank (6) is sleeved in the connecting sleeve (8); a sleeve shell (7) is mounted on one side of the connecting sleeve (8) via bolts, and a pressure controller (12) is mounted in the sleeve shell (7) via screws; the vacuum pump (9) is mounted on the top of the base plate (10) and on one side of the negative pressure tank (6) via a mounting seat; The top input port of the negative pressure tank (6) is connected to the No. 2 delivery pipe (3) and the No. 2 delivery pipe (3) is provided with a solenoid valve (4); one end of the No. 2 delivery pipe (3) is connected to the filter cartridge (2) via a snap-fit ​​cover (15); a metal filter screen (14) is installed in the filter cartridge (2) via screws and the other end of the filter cartridge (2) is connected to the No. 1 delivery pipe (1) via a snap-fit ​​cover (15); a time relay switch (5) is installed at the top of the negative pressure tank (6) and on one side of the solenoid valve (4) via screws.

2. A continuous negative pressure mechanism for a blister tank according to claim 1, characterized in that: The detection end of the pressure controller (12) is located in the negative pressure tank (6), and the output end of the pressure controller (12) is electrically connected to the input end of the vacuum pump (9) via a wire.

3. A continuous negative pressure mechanism for a blister tank according to claim 1, characterized in that: The output end of the time relay switch (5) is electrically connected to the input end of the solenoid valve (4) via a wire.

4. A continuous negative pressure mechanism for a blister tank according to claim 1, characterized in that: A pressure gauge (13) is mounted on one side of the negative pressure tank (6) via screws, and a detection end of the pressure gauge (13) is located inside the negative pressure tank (6).

5. A continuous negative pressure mechanism for a blister tank according to claim 1, characterized in that: The suction end of the vacuum pump (9) is located inside the negative pressure tank (6).

6. A continuous negative pressure mechanism for a blister tank according to claim 1, characterized in that: The No. 1 delivery pipe (1) and the No. 2 delivery pipe (3) are both connected to the filter cartridge (2).

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