A bottle limiting device on a workshop

Abstract

This application discloses a cylinder loading limit device in a workshop to solve the problems of high equipment failure rate and easy disruption of the production process in existing liquefied gas filling processes. The limit device includes a first pneumatic valve, a second pneumatic valve, a third pneumatic valve, a fourth pneumatic valve, a fifth pneumatic valve, a sixth pneumatic valve, a controller, and a first control valve and a second control valve for controlling the operation of a bottle stopper and a bottle pusher, respectively. By improving upon traditional technology, this application sets up multiple pneumatic valves, which are correspondingly connected to the first and second control valves controlling the operation of the bottle stopper and the bottle pusher. This ensures that the bottle stopper is only triggered to load a bottle after the bottle pusher has fully retracted, reducing equipment failure rate and maintenance costs, ensuring smooth and continuous production, effectively improving the overall production efficiency of gas cylinders, and greatly reducing accidents caused by equipment failure.

Description

Technical Field

[0001] This application relates to the field of liquefied gas technology, specifically to a cylinder limiting device in a workshop. Background Technology

[0002] Liquefied petroleum gas (LPG) filling equipment typically includes a filling scale, a gas cylinder, a feeding mechanism, and a discharging mechanism. The gas cylinder serves as the storage container for the LPG. The filling scale, mounted on a turntable, is used to inject LPG into the gas cylinder. The feeding mechanism includes a conveyor chain, a bottle stopper, and a bottle pusher. The conveyor chain sequentially transports empty bottles to be filled, the bottle stopper blocks the empty bottles at appropriate positions to ensure accurate positioning, and the bottle pusher pushes the positioned empty bottles to a fixed filling station on the turntable. The discharging mechanism includes a heavy bottle ejector and a weighing sensor. The end of the heavy bottle ejector has a hook that, upon detection of filling completion by the weighing sensor, pulls the full LPG cylinder off the turntable for the next stage.

[0003] In actual operation, the aforementioned device utilizes a time difference to perform bottle pushing and bottle blocking operations. However, due to the relatively long lever arm of the bottle pusher, a reset delay is prone to occur during the action cycle. If the bottle pusher fails to fully reset when the bottle blocker retracts first, subsequently conveyed cylinders are highly likely to collide with its extended portion, potentially causing the cylinders to become stuck in the gap between the bottle pusher and the filling scale. Such situations not only increase the equipment damage rate and interrupt the production process but also pose certain safety hazards. Summary of the Invention

[0004] Therefore, this application provides a workshop bottle limiting device to solve the problems of high equipment damage rate and easy disruption of production process in the existing liquefied gas filling process.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A cylinder limiting device is provided in a workshop. The limiting device is installed on a liquefied gas filling machine. The filling machine includes a filling scale, a conveyor chain, a bottle stopper, and a bottle pusher. The filling scale is installed on a turntable. The conveyor chain is located between the bottle pusher and the filling scale, and the bottle pusher is located at the rear end of the conveyor chain in the transmission direction. It is used to push the cylinder that reaches the position of the filling scale into a fixed filling station. The bottle stopper is located at the front end of the bottle pusher. It is used to block the following cylinders in sequence.

[0007] The limiting device includes a first pneumatic valve, a second pneumatic valve, a third pneumatic valve, a fourth pneumatic valve, a fifth pneumatic valve, a sixth pneumatic valve, and a first control valve and a second control valve for controlling the operation of the bottle stopper and the bottle pusher, respectively. The first, third, second, and fourth pneumatic valves are located above the conveyor chain and near the bottle pusher, and are spaced apart sequentially along the conveyor chain's transmission direction. The stop rods connected to the first, third, and fourth pneumatic valves are all installed facing the conveyor chain to block the conveying cylinders. The fifth pneumatic valve is located at the bottom of the filling scale, and the sixth pneumatic valve is located inside the bottle pusher. One end of the first and second pneumatic valves is sequentially connected to the first control valve, and the other end of the third pneumatic valve is connected to the first control valve. One end of the fourth and fifth pneumatic valves is sequentially connected to the second control valve, and the other end of the sixth pneumatic valve is connected to the second control valve.

[0008] It also includes a controller, which is connected to the first pneumatic valve, the second pneumatic valve, the third pneumatic valve, the fourth pneumatic valve, the fifth pneumatic valve, the sixth pneumatic valve, the first control air valve, and the second control air valve respectively.

[0009] Optionally, the first control air valve and the second control air valve are two-position five-way air valves; the first pneumatic valve, the second pneumatic valve, the third pneumatic valve, the fourth pneumatic valve, the fifth pneumatic valve, and the sixth pneumatic valve are two-position three-way air valves.

[0010] Optionally, the stop levers corresponding to the first, third, and fourth pneumatic valves are respectively the first stop lever, the third stop lever, and the fourth stop lever; the second and fifth pneumatic valves are respectively connected to the second stop lever and the fifth stop lever;

[0011] The first, second, third, fourth, and fifth pneumatic valves all include a valve body, with a valve core inside the valve body and a stop rod outside. The stop rod is rotatably connected to one end of the valve core, and a return spring is installed inside the valve core to automatically reset the valve core when no external force is applied.

[0012] Optionally, the bottle pusher includes a second housing, inside which a second drive cylinder and a second control valve are disposed. The piston rod of the second drive cylinder is connected to one end of the push arm, and a push head is installed at the other end of the push arm. The push arm slides through the second housing, and the second drive cylinder is controlled by the second control valve to drive the push arm and the push head to perform reciprocating linear motion to push the cylinder into the filling station.

[0013] Optionally, the contact surface of the pusher is adapted to the outer contour of the cylinder, and is arc-shaped or V-shaped.

[0014] Optionally, the bottle stopper includes a first housing, inside which a first driving cylinder and a first control valve are disposed. The piston rod of the first driving cylinder is connected to one end of the stop arm, and a stop head is installed at the other end of the stop arm. The stop arm slides through the first housing, and the first driving cylinder is controlled by the first control valve to drive the stop arm and the stop head to perform reciprocating linear motion to block the gas cylinder.

[0015] Optionally, the contact surface of the stop is an inclined surface.

[0016] Optionally, a mounting base is also included for mounting the bottle pusher and the bottle stopper.

[0017] Optionally, a fixed frame is provided on the side of the conveyor chain corresponding to the side near the bottle pusher, and the first pneumatic valve, the third pneumatic valve, the second pneumatic valve, and the fourth pneumatic valve are sequentially arranged on the upper part of the fixed frame.

[0018] Compared with the prior art, this application has at least the following beneficial effects:

[0019] Based on further analysis and research of existing technical problems, this application provides a bottle-loading limiting device for workshops. The limiting device includes a first pneumatic valve, a second pneumatic valve, a third pneumatic valve, a fourth pneumatic valve, a fifth pneumatic valve, a sixth pneumatic valve, a controller, and a first control valve and a second control valve for controlling the operation of a bottle stopper and a bottle pusher, respectively. The first and second pneumatic valves are sequentially connected to one end of the first control valve, and the third pneumatic valve is connected to the other end of the first control valve; the fourth and fifth pneumatic valves are sequentially connected to one end of the second control valve, and the sixth pneumatic valve is connected to the other end of the second control valve. This application improves upon traditional technology by setting multiple pneumatic valves and correspondingly connecting them to the first and second control valves that control the operation of the bottle stopper and the bottle pusher. This ensures that the bottle stopper is triggered to load the bottle only after the bottle pusher has fully retracted, reducing equipment failure rate and maintenance costs, ensuring smooth and continuous production processes, thereby effectively improving the overall production efficiency of steel cylinders and greatly reducing accidents caused by equipment failures. Attached Figure Description

[0020] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).

[0021] Figure 1This is a schematic diagram of the structure of a workshop bottle-limiting device provided in one embodiment of this application;

[0022] Figure 2 for Figure 1 Partial schematic diagram shown Figure 1 ;

[0023] Figure 3 for Figure 1 Partial schematic diagram shown Figure 2 ;

[0024] Figure 4 A schematic diagram of the air circuit connection of a workshop upper bottle limiting device provided in one embodiment of this application;

[0025] Figure 5 A schematic diagram of a two-position five-way vent valve provided in one embodiment of this application;

[0026] Figure 6 A schematic diagram of a two-position three-way vent valve provided in one embodiment of this application;

[0027] Figure 7 This is a schematic diagram of a drive cylinder provided in one embodiment of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Filling scale; 2. Turntable; 3. Conveyor chain; 4. Bottle pusher; 41. Push arm; 42. Push head; 43. Second housing; 5. Bottle stopper; 51. Stop arm; 52. Stop head; 53. First housing; 6. Cylinder; 7. Fixing frame; 8. Mounting base; 9. Heavy bottle ejector; 91. Hook;

[0030] 10. First pneumatic valve; 101. First stop lever; 11. Second pneumatic valve; 12. Third pneumatic valve; 121. Third stop lever; 13. Fourth pneumatic valve; 131. Fourth stop lever; 14. Fifth pneumatic valve; 15. Sixth pneumatic valve; 16. First control air valve; 17. Second control air valve. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] In the description of this application: unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," etc., in this application are intended to distinguish the objects referred to and do not have any special meaning in terms of technical connotation (e.g., they should not be construed as an emphasis on importance or order). Expressions such as "including," "comprising," and "having" also mean "not limited to" (certain units, components, materials, steps, etc.).

[0033] The terms used in this application, such as "upper," "lower," "left," "right," and "middle," are generally used to indicate the general relative positional relationship for the purpose of intuitive understanding by referring to the accompanying drawings, and are not absolute limitations on the positional relationship in the actual product.

[0034] One embodiment of this application, such as Figures 1-7 As shown, a bottle-mounted limiting device is installed on a liquefied gas filling machine. The filling machine includes a filling scale 1, a conveyor chain 3, a bottle stopper 5, and a bottle pusher 4. The filling scale 1 is installed on a turntable 2. The conveyor chain 3 is located between the bottle pusher 4 and the filling scale 1, and the bottle pusher 4 is located at the rear end of the conveyor chain 3 in the transmission direction, used to push the cylinder 6 that has reached the position of the filling scale 1 into a fixed filling station. The bottle stopper 5 is located at the front end of the bottle pusher 4, used to block the subsequent cylinders 6.

[0035] The limiting device includes a first pneumatic valve 10, a second pneumatic valve 11, a third pneumatic valve 12, a fourth pneumatic valve 13, a fifth pneumatic valve 14, a sixth pneumatic valve 15, and a first control valve 16 and a second control valve 17 for controlling the operation of the bottle stopper 5 and the bottle pusher 4, respectively. The first pneumatic valve 10, the third pneumatic valve 12, the second pneumatic valve 11, and the fourth pneumatic valve 13 are located above the conveyor chain 3 and are positioned near the bottle pusher 4, and are arranged at intervals along the transmission direction of the conveyor chain 3. The installation direction of the stop rods connected to the actuated valve 13 is facing the conveyor chain 3, which is used to block the steel cylinder 6 in the conveying process; the fifth pneumatic valve 14 is located at the bottom of the filling scale 1, and the sixth pneumatic valve 15 is set inside the bottle pusher 4; the first pneumatic valve 10, the second pneumatic valve 11 are connected to one end of the first control air valve 16 in sequence, and the third pneumatic valve 12 is connected to the other end of the first control air valve 16; the fourth pneumatic valve 13, the fifth pneumatic valve 14 are connected to one end of the second control air valve 17 in sequence, and the sixth pneumatic valve 15 is connected to the other end of the second control air valve 17.

[0036] It also includes a controller, which is connected to the first pneumatic valve 10, the second pneumatic valve 11, the third pneumatic valve 12, the fourth pneumatic valve 13, the fifth pneumatic valve 14, the sixth pneumatic valve 15, the first control air valve 16, and the second control air valve 17 respectively.

[0037] Preferably, the stop rods corresponding to the first pneumatic valve 10, the third pneumatic valve 12, and the fourth pneumatic valve 13 are respectively designated as first stop rod 101, third stop rod 121, and fourth stop rod 131; the fifth pneumatic valve 14 is installed at the bottom of the filling scale 1 and is connected to a fifth stop rod, the installation direction of the fifth stop rod facing the conveyor chain 3, and the fifth stop rod further obstructs the conveying cylinder 6; the second pneumatic valve 11 is also connected to a second stop rod, and the second stop rod faces the pusher head 42 of the bottle pusher 4, and can be triggered by the pusher head 42 to generate displacement;

[0038] The first pneumatic valve 10, the second pneumatic valve 11, the third pneumatic valve 12, the fourth pneumatic valve 13, and the fifth pneumatic valve 14 mentioned above all include a valve body. The valve body contains a valve core and has a stop rod on the outside. The stop rod is rotatably connected to one end of the valve core and is used to receive external mechanical action signals. The valve core has a return spring inside, which is used to automatically reset the valve core when there is no external force, thereby ensuring the initial state of the air circuit. By driving the valve core to move against the spring force through the stop rod, the air circuit can be switched.

[0039] The specific structure of the pneumatic valve described above is conventional and will not be elaborated here.

[0040] Preferably, the bottle pusher 4 includes a second housing 43, inside which a second driving cylinder and a second control valve 17 are provided. The piston rod (cylinder rod) of the second driving cylinder is connected to one end of the push arm 41, and a push head 42 is installed at the other end of the push arm 41. The push arm 41 slides through the second housing 43, and the second driving cylinder is controlled by the second control valve 17 to drive the push arm 41 and the push head 42 to perform reciprocating linear motion, pushing the cylinder 6 into the filling station.

[0041] More preferably, the contact surface of the pusher 42 is adapted to the outer contour of the cylinder 6, and is arc-shaped or V-shaped.

[0042] Preferably, the bottle stopper 5 includes a first housing 53, inside which a first driving cylinder and a first control valve are provided. The piston rod (cylinder rod) of the first driving cylinder is connected to one end of the stop arm 51, and a stop head 52 is installed at the other end of the stop arm 51. The stop arm 51 slides through the first housing 53, and the first driving cylinder is controlled by the first control valve 16 to drive the stop arm 51 and the stop head 52 to perform reciprocating linear motion to block the cylinder 6.

[0043] More preferably, the contact surface of the stop 52 is an inclined surface.

[0044] Preferably, it also includes a mounting base 8 for mounting the bottle pusher 4 and the bottle stopper 5.

[0045] Preferably, a fixing frame 7 is provided on the side of the conveyor chain 3 corresponding to the side near the bottle pusher 4, and the first pneumatic valve 10, the third pneumatic valve 12, the second pneumatic valve 11, and the fourth pneumatic valve 13 are sequentially arranged on the upper part of the fixing frame 7.

[0046] The turntable 2 is equipped with multiple filling scales 1 for injecting liquefied gas into the gas tank (cylinder 6); a discharge mechanism is also provided on one side of the turntable 2, which includes a heavy bottle ejector 9 and a weighing sensor. The end of the heavy bottle ejector 9 is equipped with a hook 91, which can pull the heavy bottle filled with liquefied gas from the turntable 2 after the weighing sensor detects that the filling is completed, and then proceed to the next stage.

[0047] The working principle of this embodiment:

[0048] The aforementioned first control valve 16 and second control valve 17 are two-position five-way valves. These valves have a Z port, a Y port, and P, A, B, R, and S ports. The Z and Y ports are control ports, such as... Figure 5 As shown; the first pneumatic valve 10, the second pneumatic valve 11, the third pneumatic valve 12, the fourth pneumatic valve 13, the fifth pneumatic valve 14, and the sixth pneumatic valve 15 are all two-position three-way valves. These two-position three-way valves have corresponding A ports, P ports, and R ports, as shown. Figure 6 As shown; both the first and second drive cylinders have corresponding A and B ports, as follows. Figure 7 As shown;

[0049] In the initial state, the first pneumatic valve 10 (at which time the first stop lever 101 is in the reset state) is normally closed, and the second pneumatic valve 11 (at which time the second stop lever is in the reset state) is normally open; the normally closed first pneumatic valve 10 and the normally open second pneumatic valve 11 are connected in sequence, and then connected to the Z port of the first control air valve 16.

[0050] When there is no cylinder 6 at the bottle push position, the first pneumatic valve 10 is in a closed venting state, and the second pneumatic valve 11 (displaced when the second stop lever is touched) is in a closed venting state due to the reset of the bottle pusher 4. At this time, after the Z port of the first control air valve 16 receives air, the A port of the first control air valve 16 is vented, which in turn vents to the A port of the first drive cylinder of the bottle stopper 5. Figure 3 When gas is supplied to A1 in the first drive cylinder, the cylinder rod of the first drive cylinder retracts (i.e., the bottle stopper 5 retracts), and the cylinder 6 is released into the push position. After the cylinder 6 enters the push position, the third pneumatic valve 12 (the third stopper 121 is displaced by the limit contact of the turntable 2) closes to allow gas to flow, and the Y port of the first control valve 16 receives gas, so that the B port of the first control valve 16 is vented, which in turn supplies gas to the B port of the first drive cylinder of the bottle stopper 5. Figure 3 When A2 is supplied with air, the cylinder rod of the first drive cylinder extends, thereby blocking the steel cylinder 6;

[0051] When cylinder 6 is in the push position, the fourth pneumatic valve 13 (the fourth stop lever 131 is displaced when touched by the cylinder) closes to allow air flow. As the weighing position of the filling scale 1 rotates, when the weighing position aligns with the push position, the fifth pneumatic valve 14 (the fifth stop lever is displaced when touched by the cylinder) closes to allow air flow. Air is then supplied to the Y port of the second control valve 17, allowing air to flow through the B port of the second control valve 17, which in turn supplies air to the B port of the second drive cylinder of the pusher 4. Figure 3 When air is supplied to B1, the cylinder rod of the second drive cylinder extends, and the bottle pusher 4 pushes the cylinder 6 forward. After the cylinder 6 is pushed to the weighing position, it triggers the sixth pneumatic valve 15 to close, and causes the sixth pneumatic valve 15 to be ventilated. The sixth pneumatic valve 15 is connected to the Z port of the second control valve 17 to obtain air, so that the A port of the second control valve 17 is ventilated, and the A port of the second drive cylinder of the bottle pusher 4 ( Figure 3 When air is supplied to B2, the cylinder rod of the second drive cylinder retracts, and the bottle pusher 4 resets.

[0052] Therefore, when the bottle pusher 4 is not in the reset state, the second pneumatic valve 11 (second stop lever reset) is in the open state; only when the bottle pusher 4 is in the reset state, the second pneumatic valve 11 (at this time the second stop lever is not touched and is in the reset state) is in the closed state, there is no steel cylinder 6 in the bottle push position, the first pneumatic valve 10 and the second pneumatic valve 11 are closed, and the bottle stop 5 can be opened, thereby preventing the steel cylinder 6 from hitting the bottle pusher 4.

[0053] In summary, this application, by setting up multiple pneumatic valves and correspondingly connecting them to the first and second control valves that control the operation of the bottle stopper and the bottle pusher, achieves switching between different channels through different displacements of the valve cores inside the valves, thereby controlling the direction of airflow and terminating the flow. This ensures that the bottle stopper is only triggered to load the bottle after the bottle pusher has fully retracted, reducing equipment failure rate and maintenance costs, ensuring a smooth and continuous production process, effectively improving the overall production efficiency of steel cylinders, and greatly reducing the occurrence of accidents caused by equipment failure.

[0054] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A bottle-mounted limiting device in a workshop, the limiting device being installed on a liquefied gas filling machine, the filling machine comprising: The system comprises a filling scale, a conveyor chain, a bottle stopper, and a bottle pusher. The filling scale is mounted on a turntable. The conveyor chain is located between the bottle pusher and the filling scale, with the bottle pusher positioned at the rear end of the conveyor chain in the transmission direction. The bottle pusher is used to push cylinders arriving at the filling scale into a fixed filling station. The bottle stopper is located at the front end of the bottle pusher and is used to sequentially block subsequently arriving cylinders. The system is characterized by... The limiting device includes a first pneumatic valve, a second pneumatic valve, a third pneumatic valve, a fourth pneumatic valve, a fifth pneumatic valve, a sixth pneumatic valve, and a first control valve and a second control valve for controlling the operation of the bottle stopper and the bottle pusher, respectively. The first, third, second, and fourth pneumatic valves are located above the conveyor chain and near the bottle pusher, and are spaced apart sequentially along the conveyor chain's transmission direction. The stop rods connected to the first, third, and fourth pneumatic valves are all installed facing the conveyor chain to block the conveying cylinders. The fifth pneumatic valve is located at the bottom of the filling scale, and the sixth pneumatic valve is located inside the bottle pusher. One end of the first and second pneumatic valves is sequentially connected to the first control valve, and the other end of the third pneumatic valve is connected to the first control valve. One end of the fourth and fifth pneumatic valves is sequentially connected to the second control valve, and the other end of the sixth pneumatic valve is connected to the second control valve. It also includes a controller, which is connected to the first pneumatic valve, the second pneumatic valve, the third pneumatic valve, the fourth pneumatic valve, the fifth pneumatic valve, the sixth pneumatic valve, the first control air valve, and the second control air valve respectively.

2. The workshop bottle limiting device according to claim 1, characterized in that, The first and second control air valves are two-position five-way air valves; the first, second, third, fourth, fifth, and sixth pneumatic valves are two-position three-way air valves.

3. The workshop bottle limiting device according to claim 2, characterized in that, The first, third, and fourth pneumatic valves have corresponding stop levers, namely the first stop lever, the third stop lever, and the fourth stop lever; the second and fifth pneumatic valves are respectively connected to the second stop lever and the fifth stop lever. The first, second, third, fourth, and fifth pneumatic valves all include a valve body, with a valve core inside the valve body and a stop rod outside. The stop rod is rotatably connected to one end of the valve core, and a return spring is installed inside the valve core to automatically reset the valve core when no external force is applied.

4. The workshop bottle limiting device according to claim 1, characterized in that, The bottle pusher includes a second housing, inside which a second drive cylinder is installed. The piston rod of the second drive cylinder is connected to one end of the push arm, and a push head is installed at the other end of the push arm. The push arm slides through the second housing, and the second drive cylinder is controlled by the second control valve to drive the push arm and the push head to reciprocate linearly, pushing the cylinder into the filling station.

5. The workshop bottle limiting device according to claim 4, characterized in that, The contact surface of the pusher is adapted to the outer contour of the gas cylinder and is either arc-shaped or V-shaped.

6. The workshop bottle limiting device according to claim 1, characterized in that, The bottle stopper includes a first housing, inside which a first driving cylinder is disposed. The piston rod of the first driving cylinder is connected to one end of a stop arm, and a stop head is installed at the other end of the stop arm. The stop arm slides through the first housing, and the first driving cylinder is controlled by the first control valve to drive the stop arm and the stop head to perform reciprocating linear motion to block the gas cylinder.

7. The workshop bottle limiting device according to claim 6, characterized in that, The contact surface of the stop is an inclined surface.

8. The workshop bottle limiting device according to claim 1, characterized in that, It also includes a mounting base for mounting the bottle pusher and the bottle stopper.

9. The workshop bottle limiting device according to claim 1, characterized in that, A fixed frame is provided on the side of the conveyor chain corresponding to the side near the bottle pusher, and the first pneumatic valve, the third pneumatic valve, the second pneumatic valve and the fourth pneumatic valve are sequentially arranged on the upper part of the fixed frame.

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