Hidden pneumatic circuit structure for a filling machine

Abstract

The utility model discloses a hidden type pneumatic circuit structure of filling machine, including base, support bucket and working cylinder, be equipped with lifting cylinder in the base, and the cylinder cavity of lifting cylinder is divided into lifting upper cavity and lifting lower cavity by piston, and the working cavity of working cylinder is divided into work upper cavity and work lower cavity by piston, be equipped with pilot hole in the rear wall of support bucket, be equipped with two gas pipes in the pilot hole, and the upper export of two gas pipes is connected with work upper cavity and work lower cavity respectively, the rear of base is equipped with one air intake general connector, and air intake general connector is connected with one reversing valve through the air intake pipeline, and the reversing valve is equipped with work gas path export and reset gas path export, and the work three way valve is connected with the work gas path export of reversing valve, and the reset three way valve is connected with the reset gas path export of reversing valve. The hidden type pneumatic circuit structure of utility model design can realize the hidden type setting of air intake pipeline, has the characteristics such as simple structure, small space occupation.

Description

Technical Field

[0001] This utility model relates to a filling machine, specifically a concealed pneumatic circuit structure for a filling machine. Background Technology

[0002] In production, a filling machine is used to fill self-spraying paints, cosmetics, coatings, etc. A typical filling machine consists of a base, a support barrel, and a working cylinder, with a lifting cylinder installed in the base. The working chamber of the working cylinder is divided into an upper working chamber and a lower working chamber by a working piston, and the cylinder chamber of the lifting cylinder is divided into an upper lifting chamber and a lower lifting chamber by a lifting piston.

[0003] During operation, both the upper working chamber and the lower lifting chamber simultaneously receive air for filling. During resetting, both the lower working chamber and the upper lifting chamber simultaneously receive air for resetting. To achieve these functions, each of the upper working chamber, lower working chamber, upper lifting chamber, and lower lifting chamber is connected to an exposed, independent air inlet pipe. This structural layout results in a very complex piping layout for the filling machine, and the four air inlet pipes occupy a significant amount of operating space, causing considerable inconvenience in actual use. Utility Model Content

[0004] To address the aforementioned issues, this invention presents a concealed pneumatic circuit structure for a filling machine, which enables the concealed installation of the air inlet pipe and features a simple structure and minimal space occupation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A concealed pneumatic circuit structure for a filling machine includes a base, a support barrel, and a working cylinder. The base houses a lifting cylinder, whose cylinder chamber is divided into an upper lifting chamber and a lower lifting chamber by a piston. The working chamber of the working cylinder is also divided into an upper working chamber and a lower working chamber by a piston. The supporting barrel has a guide hole in its rear wall, through which two air pipes are installed. The upper outlets of the two air pipes are respectively connected to the upper working chamber and the lower working chamber. A main air inlet connector is located at the rear of the base, connected to a reversing valve via an air inlet pipe. The valve has a working air outlet and a reset air outlet. Each operation of the reversing valve can connect one outlet to the air inlet pipe. The working air outlet of the reversing valve is connected to a working three-way valve. One outlet of the working three-way valve is connected to the lower lifting chamber through pipe one, and the other outlet of the working three-way valve is connected to the air pipe connected to the upper working chamber through pipe two. The reset air outlet of the reversing valve is connected to a reset three-way valve. One outlet of the reset three-way valve is connected to the upper lifting chamber through pipe three, and the other outlet of the reset three-way valve is connected to another air pipe connected to the lower working chamber through pipe four.

[0006] More specifically, the aforementioned reversing valve is a manually operated mechanical valve with a reversing button on the front side. In the initial state, the working air outlet is connected to the intake pipe. When the button is pressed, it will switch to the reset air outlet being connected to the intake pipe.

[0007] More specifically, the aforementioned reversing valve is a solenoid valve, which controls the reversing operation of the air circuit through a control switch.

[0008] More specifically, a pressure regulating valve is installed on the aforementioned intake pipe.

[0009] More specifically, the aforementioned pressure regulating valve is equipped with a pressure gauge.

[0010] The concealed pneumatic circuit structure designed in this utility model mainly includes an air inlet connector, a reversing valve, a working three-way valve, a reset three-way valve, and two air pipes in the rear wall of the support barrel. This structure allows all connecting pipes to be located in the base and the rear wall of the support barrel without being exposed, which can effectively simplify the air circuit structure of the filling machine and fundamentally solve the problem of extra space occupation caused by exposed air pipes. It has the characteristics of simple and practical structure. Attached Figure Description

[0011] Figure 1 A three-dimensional structural diagram of this utility model; Figure 2 A partial cross-sectional view of the present invention; Figure 3 A schematic diagram of the air passage in the base of this utility model; Among them, 1—base, 2—support barrel, 21—guide hole, 3—working cylinder, 4—lifting cylinder, 5—air pipe, 51—left air pipe, 52—right air pipe, 61—main air inlet connector, 62—air inlet pipeline, 63—reversing valve, 63a—press button, 631—working air outlet, 632—reset air outlet, 65—working three-way valve, 651—one outlet of the working three-way valve, 652—the other outlet of the working three-way valve, 67—reset three-way valve, 671—one outlet of the reset three-way valve, 672—the other outlet of the reset three-way valve, 68—pressure regulating valve, 681—pressure gauge, 71—pipeline one, 72—pipeline two, 73—pipeline three, 74—pipeline four. Detailed Implementation

[0012] like Figure 1 and 2 As shown, a concealed pneumatic circuit structure for a filling machine includes a base 1, a support barrel 2, and a working cylinder 3 stacked in sequence.

[0013] The base 1 is equipped with a lifting cylinder 4, and the cylinder chamber of the lifting cylinder 4 is divided into an upper lifting chamber and a lower lifting chamber by a piston. The working chamber of the working cylinder 3 is divided into an upper working chamber and a lower working chamber by a piston.

[0014] The rear wall of the support barrel 2 is provided with a vertically penetrating guide hole 21. Two parallel air pipes 5 are arranged in the guide hole 21, namely a left air pipe 51 and a right air pipe 52. The upper outlet of the left air pipe 51 is connected to the upper working cavity, and the right air pipe 52 is connected to the lower working cavity. In practice, the connections between the left and right air pipes and the upper and lower working cavities can be interchanged; that is, the upper outlet of the left air pipe 51 is connected to the lower working cavity, and the right air pipe 52 is connected to the upper working cavity, achieving the same technical effect.

[0015] The base 1 has an air intake connector 61 at its rear for connecting to an external compressed air source. The air intake connector 61 is connected to a reversing valve 63 via an air intake pipe 62. The reversing valve 63 has a working air outlet 631 and a reset air outlet 632. Each operation of the reversing valve 63 can connect only one of its outlets to the air intake pipe 62.

[0016] For filling flammable and explosive products, the above-mentioned reversing valve 63 must be set as a manual push-button mechanical valve. The front side of the reversing valve 63 is equipped with a reversing push button 63a. In the initial state, the push button 63a is popped out, and at this time the working gas outlet 631 is connected to the air inlet pipe 62, and the reset gas outlet 632 is cut off from the air inlet pipe 62. When the push button 63a is pressed, the reset gas outlet 632 will be connected to the air inlet pipe 62, and the working gas outlet 631 will be cut off from the air inlet pipe 62.

[0017] For other products that do not have special filling requirements, the reversing valve 63 can also be a solenoid valve. The reversing operation of the air circuit can be controlled by a control switch, and the same technical effect is achieved. It will not be described again here.

[0018] The working air outlet 631 of the reversing valve 63 is connected to a working three-way valve 65. One outlet 651 of the working three-way valve is connected to the lower lifting chamber via pipe 71, and the other outlet 652 of the working three-way valve is connected to the air pipe connected to the upper working chamber via pipe 72, i.e., the left air pipe 51 in this figure. When the working air outlet 631 of the reversing valve 63 is connected to the air inlet pipe 62, compressed air is injected into the upper working chamber of the working cylinder 3 and the lower lifting chamber of the lifting cylinder 4 to quickly push the piston of the working cylinder down and the piston of the lifting cylinder up for filling operation.

[0019] The reset air outlet 632 of the reversing valve 63 is connected to a reset three-way valve 67. One outlet 671 of the reset three-way valve is connected to the lifting upper chamber via pipe three 73, and the other outlet 672 of the reset three-way valve is connected to another air pipe connected to the working lower chamber via pipe four 74, i.e., the right air pipe 52 in this figure. When the reset air outlet 632 of the reversing valve 63 is connected to the air inlet pipe 62, compressed air is injected into the working lower chamber and the lifting upper chamber to push the working cylinder piston up and the lifting cylinder piston down, so as to quickly perform the reset operation.

[0020] In summary, the concealed pneumatic circuit structure described above mainly includes an air inlet connector 61, a reversing valve 63, a working three-way valve 65, a reset three-way valve 67, two air pipes 5 in the rear wall of the support barrel 2, and multiple connecting pipes. This structure allows all components and connecting pipes to be concealed within the base 1 and the rear wall of the support barrel 2, thus effectively simplifying the pneumatic circuit structure of the filling machine. It fundamentally solves the problem of extra space occupation caused by exposed air pipes and effectively improves the overall aesthetics of the filling machine.

[0021] A pressure regulating valve 68 is installed in the air inlet pipe 62 between the main air inlet connector 61 and the reversing valve 63. This valve allows for adjustment of the working air inlet pressure to meet the filling pressure requirements of different products. For convenient pressure adjustment, a pressure gauge 681 is installed on the pressure regulating valve 68. This pressure gauge can be electronic or mechanical, and it can display the gas pressure inside the pipe in real time.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical principles of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A concealed pneumatic circuit structure for a filling machine, comprising a base (1), a support barrel (2), and a working cylinder (3); wherein a lifting cylinder (4) is provided in the base, and the cylinder chamber of the lifting cylinder (4) is divided into an upper lifting chamber and a lower lifting chamber by a piston; the working chamber of the working cylinder (3) is divided into an upper working chamber and a lower working chamber by a piston, characterized in that: The rear wall of the support barrel (2) is provided with a guide hole (21), and two air pipes (5) are provided in the guide hole (21). The upper outlets of the two air pipes (5) are respectively connected to the upper working cavity and the lower working cavity; a main air inlet connector (61) is provided at the rear of the base (1). The main air inlet connector (61) is connected to a reversing valve (63) through an air inlet pipe (62). The reversing valve (63) is provided with a working air outlet (631) and a reset air outlet (632). Each action of the reversing valve (63) can make one outlet connected to the air inlet pipe (62); the working air outlet (631) of the reversing valve (63) is connected to the air inlet pipe (62). 1) A working three-way valve (65) is connected. One outlet (651) of the working three-way valve is connected to the lower lifting chamber through pipeline one (71), and the other outlet (652) of the working three-way valve is connected to the air pipe (5) connected to the working upper chamber through pipeline two (72); The reset air outlet (632) of the reversing valve (63) is connected to a reset three-way valve (67). One outlet (671) of the reset three-way valve is connected to the upper lifting chamber through pipeline three (73), and the other outlet (672) of the reset three-way valve is connected to another air pipe (5) connected to the working lower chamber through pipeline four (74).

2. The concealed pneumatic circuit structure of a filling machine as described in claim 1, characterized in that: The reversing valve (63) is a manual press-type mechanical valve. The front side of the reversing valve (63) is provided with a reversing button (63a). In the initial state, the working air outlet (631) is connected to the air intake pipe (62). When the button (63a) is pressed, it will switch to the reset air outlet (632) being connected to the air intake pipe (62).

3. The concealed pneumatic circuit structure of a filling machine as described in claim 1, characterized in that: The reversing valve (63) is a solenoid valve, which controls the reversing operation of the air circuit through a control switch.

4. The concealed pneumatic circuit structure of a filling machine as described in any one of claims 1-3, characterized in that: A pressure regulating valve (68) is provided on the air intake pipe (62).

5. The concealed pneumatic circuit structure of a filling machine as described in claim 4, characterized in that: The pressure regulating valve (68) is equipped with a pressure gauge (681).

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