Anti-collision system for filling machine grippers

Abstract

This utility model belongs to the technical field of filling machine equipment and discloses a filling machine gripper anti-collision system. It includes a detection mechanism for detecting the position of the filling machine's air knife after activation and the position of the filling system's injection valve after opening; a control mechanism for controlling the opening and closing of the water spray mechanism; a water spray mechanism; and a power supply. The signal output terminal of the detection mechanism outputs a detection signal to the control mechanism. The signal input terminal of the control mechanism receives the detection signal and outputs a control signal. The signal input terminal of the water spray mechanism receives the control signal and starts or stops. The power supply output terminal is connected to the power supply terminals of the detection mechanism, the control mechanism, and the water spray mechanism, respectively. This utility model has a simple structure, can prevent collision accidents between the upper and lower grippers, and improves product production efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of filling machine equipment and relates to a filling machine gripper anti-collision system. Background Technology

[0002] The Tetra Pak A3-CF filling machine is a liquid food filling equipment developed and manufactured by Tetra Pak. It can produce pillow-shaped packages and consists of a splicing unit, a hydrogen peroxide unit, a superstructure unit, a drive unit, a gripper unit, a terminal unit, an electrical unit, and a service unit. The superstructure unit includes a filling system, an aseptic system, and a paper path system. The gripper unit comprises upper and lower grippers. When pulling a package of a single product length, the lower gripper seals and cuts the bottom of the package and then moves upwards. The upper gripper moves downwards and seals and cuts the top of the package to form the pillow-shaped package. The upper and lower grippers work in a cyclical manner. However, during the cyclical movement of the upper gripper, the pillow-shaped package cut from the package often sticks to the upper gripper and fails to fall onto the conveyor belt. If the pillow-shaped package fails to fall, it causes the upper and lower grippers to collide, resulting in a collision accident and affecting production efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a filling machine gripper anti-collision system. By setting up a detection mechanism, a control mechanism, a water spraying mechanism and a power supply, the detection mechanism outputs a detection signal to the control mechanism, which then controls the water spraying mechanism to open or close, spraying water jets onto the pillow-shaped package obtained when the lower gripper cuts the packaging material, causing the pillow-shaped package to fall onto the conveyor belt and preventing collision accidents between the upper and lower grippers.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A filling machine gripper anti-collision system includes a detection mechanism for detecting the position of the filling machine air knife after it is started and the position of the filling machine filling system injection valve after it is opened, a control mechanism for controlling the opening or closing of the water spray mechanism, a water spray mechanism, and a power supply.

[0006] The signal output terminal of the detection mechanism outputs a detection signal to the control mechanism. The signal input terminal of the control mechanism receives the detection signal and outputs a control signal. The signal input terminal of the water spraying mechanism receives the control signal and starts or stops. The power output terminal is connected to the power supply terminals of the detection mechanism, the control mechanism, and the water spraying mechanism, respectively.

[0007] As a limitation, the detection mechanism includes a first proximity switch for detecting the position of the filling machine air knife after it is started and a second proximity switch for detecting the position of the filling machine filling system injection valve after it is opened.

[0008] One end of the first proximity switch is connected to the positive terminal of the power supply, and the other end of the first proximity switch is connected to the first signal output terminal of the detection mechanism and the first signal input terminal of the control mechanism; one end of the second proximity switch is connected to the positive terminal of the power supply, and the other end of the second proximity switch is connected to the second signal output terminal of the detection mechanism and the second signal input terminal of the control mechanism.

[0009] As a second limitation, the control mechanism includes a first intermediate relay and a second intermediate relay;

[0010] One end of the first intermediate relay coil is connected to the negative terminal of the power supply, and the other end of the first intermediate relay coil is connected to the first signal input terminal of the control mechanism and the first signal output terminal of the detection mechanism.

[0011] One end of the second intermediate relay coil is connected to the negative terminal of the power supply, and the other end of the second intermediate relay coil is connected to the second signal input terminal of the control mechanism and the second signal output terminal of the detection mechanism.

[0012] One end of the normally open contact of the first intermediate relay is connected to the positive terminal of the power supply, and the other end of the normally open contact of the first intermediate relay is connected to one end of the normally closed contact of the second intermediate relay. The other end of the normally closed contact of the second intermediate relay serves as the signal output terminal of the control mechanism and is connected to the signal input terminal of the water spraying mechanism.

[0013] As a further limitation, the water spraying mechanism includes a water tank, a solenoid valve, a water pump, and a nozzle;

[0014] The nozzle opening faces the filling machine gripper. A water outlet pipe is provided between the water tank and the nozzle. One end of the water outlet pipe is connected to the water outlet of the water tank, and the other end is connected to the nozzle. A water pump and a solenoid valve are sequentially provided on the water outlet pipe from the water tank to the nozzle.

[0015] The signal input terminal of the solenoid valve is connected to the normally closed contact of the second intermediate relay as the signal input terminal of the water spraying mechanism, and the signal output terminal of the solenoid valve is connected to the negative terminal of the power supply.

[0016] As a further limitation, the water inlet of the water tank is connected to the valve of the domestic water pipe via an inlet pipe.

[0017] The technological advancements achieved by this invention compared to existing technologies, due to the adoption of the aforementioned technical solution, are as follows:

[0018] (1) This utility model includes a detection mechanism, a control mechanism, a water spraying mechanism and a power supply. The detection mechanism detects the position of the air knife of the filling machine after it is started and the position of the liquid injection valve of the filling system of the filling machine after it is opened, and outputs a detection signal to the control mechanism. After receiving the feedback signal, the control mechanism controls the water spraying mechanism to open or close, and sprays water jets onto the pillow-shaped package obtained when the lower gripper cuts the packaging material, so that the pillow-shaped package falls onto the conveyor belt and prevents the upper and lower grippers from colliding.

[0019] (2) The detection mechanism in this utility model includes a first proximity switch and a second proximity switch. When the air knife of the filling machine is started, the position of the air knife changes. At this time, the air knife is within the detection range of the first proximity switch. After the first proximity switch detects the air knife, it closes and sends a detection signal to the control mechanism, so that the control mechanism controls the water spraying mechanism to start. Since the air knife and the gripper unit start at the same time after the filling machine is started, the first proximity switch is used to detect the air knife and give a signal to start the water spraying mechanism. When the liquid injection valve of the filling system of the filling machine is opened, the liquid injection valve is within the detection range of the second proximity switch. After the second proximity switch detects the liquid injection valve, it closes and sends a detection signal to the control mechanism, so that the control mechanism controls the water spraying mechanism to close.

[0020] (3) This utility model is easy to operate, saves time and effort, reduces the workload of staff and avoids taking up a lot of staff's time.

[0021] In summary, this utility model has a simple structure, can prevent collision accidents between the upper and lower grippers, and improve product production efficiency. Attached Figure Description

[0022] Figure 1 The diagram shown is a circuit schematic of an embodiment of this utility model.

[0023] Figure 2 The diagram shown is a structural schematic of the water spraying mechanism in an embodiment of this utility model;

[0024] In the diagram: 1. Water tank; 2. Solenoid valve; 3. Water pump; 4. Nozzle. Detailed Implementation

[0025] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1: Anti-collision system for filling machine grippers

[0027] like Figure 1 As shown, this embodiment is a filling machine gripper anti-collision system, which includes a detection mechanism for detecting the position of the filling machine air knife after it is started and the position of the filling machine filling system liquid injection valve after it is opened, a control mechanism for controlling the opening or closing of the water spray mechanism, a water spray mechanism and a power supply.

[0028] The signal output terminal of the detection mechanism outputs a detection signal to the control mechanism. The signal input terminal of the control mechanism receives the detection signal and outputs a control signal. The signal input terminal of the water spraying mechanism receives the control signal and starts or stops. The power output terminal is connected to the power supply terminals of the detection mechanism, the control mechanism, and the water spraying mechanism, respectively.

[0029] In this embodiment, since the air knife and the gripper unit are started simultaneously, the detection mechanism detects the position of the air knife and gives a signal to start the water spraying mechanism; the detection mechanism detects the opening of the injection valve of the filling system and gives a signal to close the water spraying mechanism.

[0030] The detection mechanism includes a first proximity switch SQ1 and a second proximity switch SQ2; one end of the first proximity switch SQ1 is connected to the positive terminal of the power supply, and the other end of the first proximity switch SQ1 is connected to the first signal output terminal of the detection mechanism and the first signal input terminal of the control mechanism; one end of the second proximity switch SQ2 is connected to the positive terminal of the power supply, and the other end of the second proximity switch SQ2 is connected to the second signal output terminal of the detection mechanism and the second signal input terminal of the control mechanism.

[0031] The control mechanism includes a first intermediate relay KA1 and a second intermediate relay KA2. One end of the coil of the first intermediate relay KA1-1 is connected to the negative terminal of the power supply, and the other end of the coil of the first intermediate relay KA1-1 serves as the first signal input terminal of the control mechanism and is connected to the first signal output terminal of the detection mechanism. One end of the coil of the second intermediate relay KA2-1 is connected to the negative terminal of the power supply, and the other end of the coil of the second intermediate relay KA2-1 serves as the second signal input terminal of the control mechanism and is connected to the second signal output terminal of the detection mechanism. One end of the normally open contact KA1-2 of the first intermediate relay is connected to the positive terminal of the power supply, and the other end of the normally open contact KA1-2 of the first intermediate relay is connected to one end of the normally closed contact KA2-2 of the second intermediate relay. The other end of the normally closed contact KA2-2 of the second intermediate relay serves as the signal output terminal of the control mechanism and is connected to the signal input terminal of the water spraying mechanism.

[0032] like Figure 2 As shown, the water spraying mechanism includes a water tank 1 and a solenoid valve 2. Figure 1(Represented by YV), water pump 3, and nozzle 4; the nozzle 4 opens towards the position where the filling machine's grippers form a pillow-shaped package. A water outlet pipe is provided between the water tank 1 and the nozzle 4. One end of the water outlet pipe is connected to the water outlet of the water tank 1, and the other end is connected to the nozzle 4. The water pump 3 and solenoid valve 2 are sequentially arranged on the water outlet pipe from the water tank 1 to the nozzle 4. The signal input terminal of the solenoid valve 2 serves as the signal input terminal of the water spraying mechanism and is connected to the normally closed contact KA2-2 of the second intermediate relay. The signal output terminal of the solenoid valve 2 is connected to the negative terminal of the power supply. The water inlet of the water tank 1 is connected to the valve of the domestic water pipe through the water inlet pipe. The water pump 3 is in the open state, and the opening and closing of the solenoid valve 2 is used to control whether the water column is sprayed from the nozzle 4.

[0033] The working principle of this embodiment is as follows: After the filling machine starts, the air knife and the gripper unit start simultaneously. After the air knife starts, its position changes within the detection range of the first proximity switch SQ1. When the first proximity switch SQ1 detects the air knife, it closes, energizing the coil KA1-1 of the first intermediate relay to generate magnetic force and closing the normally open contact KA1-2 of the first intermediate relay. The solenoid valve 2 is energized and opens. As the solenoid valve 2 opens, the water spraying mechanism starts, and the water jet from the nozzle 4 is launched to the position where the gripper of the filling machine finally forms a pillow-shaped package. The pillow-shaped package falls from the upper gripper onto the conveyor belt, and then the upper and lower grippers continue to move to obtain a pillow-shaped package. During this process, the water spraying mechanism sprays water jets.

[0034] When the filling system of the filling machine opens the injection valve (also called valve A), the position change of the injection valve is within the detection range of the second proximity switch SQ2. When the second proximity switch SQ2 detects the injection valve, it closes, energizing the coil KA2-1 of the second intermediate relay to generate magnetic force, and opening the normally closed contact KA2-2 of the second intermediate relay. The solenoid valve 2 is not energized and closes, and the water spraying mechanism is shut down.

[0035] It should be noted that the above description is merely 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 above embodiments, those skilled in the art can still modify the technical solutions described in the above 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 filling machine gripper anti-collision system, characterized in that, It includes a detection mechanism for detecting the position of the air knife after the filling machine is started and the position of the liquid injection valve of the filling machine filling system after it is opened, a control mechanism for controlling the opening or closing of the water spray mechanism, a water spray mechanism and a power supply; The signal output terminal of the detection mechanism outputs a detection signal to the control mechanism. The signal input terminal of the control mechanism receives the detection signal and outputs a control signal. The signal input terminal of the water spraying mechanism receives the control signal and starts or stops. The power output terminal is connected to the power supply terminals of the detection mechanism, the control mechanism, and the water spraying mechanism, respectively.

2. The anti-collision system for the filling machine grippers according to claim 1, characterized in that, The detection mechanism includes a first proximity switch for detecting the position of the air knife of the filling machine after it is started and a second proximity switch for detecting the position of the injection valve of the filling system of the filling machine after it is opened. One end of the first proximity switch is connected to the positive terminal of the power supply, and the other end of the first proximity switch is connected to the first signal output terminal of the detection mechanism and the first signal input terminal of the control mechanism; one end of the second proximity switch is connected to the positive terminal of the power supply, and the other end of the second proximity switch is connected to the second signal output terminal of the detection mechanism and the second signal input terminal of the control mechanism.

3. The anti-collision system for the filling machine grippers according to claim 1 or 2, characterized in that, The control mechanism includes a first intermediate relay and a second intermediate relay; One end of the first intermediate relay coil is connected to the negative terminal of the power supply, and the other end of the first intermediate relay coil is connected to the first signal input terminal of the control mechanism and the first signal output terminal of the detection mechanism. One end of the second intermediate relay coil is connected to the negative terminal of the power supply, and the other end of the second intermediate relay coil is connected to the second signal input terminal of the control mechanism and the second signal output terminal of the detection mechanism. One end of the normally open contact of the first intermediate relay is connected to the positive terminal of the power supply, and the other end of the normally open contact of the first intermediate relay is connected to one end of the normally closed contact of the second intermediate relay. The other end of the normally closed contact of the second intermediate relay serves as the signal output terminal of the control mechanism and is connected to the signal input terminal of the water spraying mechanism.

4. The anti-collision system for the filling machine grippers according to claim 3, characterized in that, The water spraying mechanism includes a water tank, a solenoid valve, a water pump, and nozzles; The nozzle opening faces the filling machine gripper. A water outlet pipe is provided between the water tank and the nozzle. One end of the water outlet pipe is connected to the water outlet of the water tank, and the other end is connected to the nozzle. A water pump and a solenoid valve are sequentially provided on the water outlet pipe from the water tank to the nozzle. The signal input terminal of the solenoid valve is connected to the normally closed contact of the second intermediate relay as the signal input terminal of the water spraying mechanism, and the signal output terminal of the solenoid valve is connected to the negative terminal of the power supply.

5. The anti-collision system for the filling machine grippers according to claim 4, characterized in that, The water inlet of the water tank is connected to the valve of the domestic water pipe through the water inlet pipe.

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