Positive pressure detection device and method for bag loading success

Abstract

A positive pressure detection device and method for bag loading success. Currently, photoelectric detection and electric shock detection are used. A photoelectric detection switch is installed near the material drop port. When the bag blocks the photoelectric, a signal is sent. Whether the bag is clamped by the clamp cannot be detected. The electric shock detection switch is installed on the clamp to detect whether the bag is clamped by conducting on and off. In dusty environments and sticky materials, the reliability will be reduced. The composition of the present invention includes: a pneumatic clamp (22), a claw arm (8) at the bottom of the pneumatic clamp is connected to a rubber block connecting plate (12) by bolts, and the rubber block connecting plate is respectively provided with a low positive pressure detection hole (13) and a high positive pressure detection hole (14). The low positive pressure detection hole and the high positive pressure detection hole are respectively connected to a pressure sensor controller (18) through a pipeline. The pressure sensor controller is connected to an electromagnetic valve (19) through a three-way connection. The electromagnetic valve is connected to a pressure reducing valve (20) through a pipeline. The left end of the pressure reducing valve is a positive pressure air inlet (21). The present invention is used for a positive pressure detection device for bag loading success.

Description

Technical field:

[0002] The invention relates to a positive pressure detection device and a detection method for successful bag loading. Background technology:

[0004] To detect whether the bagging of the fully automatic bagging machine is successful, two detections are currently commonly used: photoelectric detection, specifically by installing a photoelectric detection switch near the drop port. When the bag blocks the photoelectric, a signal is sent out. It is impossible to detect whether the bag is clamped by the clamp, and the photoelectric also needs to be cleaned of dust regularly; electric shock detection, specifically an electric shock detection switch, is installed on the clamp, and detects whether the bag is clamped by conducting electricity. For dusty environments and sticky materials, the reliability will be reduced. Summary of the invention:

[0006] The purpose of the present invention is to provide a positive pressure detection device and a detection method for successful bag loading.

[0007] The above purpose is achieved through the following technical solutions:

[0008] A positive pressure detection device for bagging success comprises: a pneumatic clamp, wherein the clamp arm at the bottom of the pneumatic clamp is connected to a rubber block connecting plate through a bolt, and the rubber block connecting plate is provided with a low positive pressure detection hole and a high positive pressure detection hole, respectively, the low positive pressure detection hole and the high positive pressure detection hole are connected to a pressure sensor controller through pipelines, respectively, the pressure sensor controller is connected to a solenoid valve through a tee, the solenoid valve is connected to a pressure reducing valve through a pipeline, and the left end of the pressure reducing valve is a positive pressure air inlet.

[0009] The described bag loading success positive pressure detection device, the described pneumatic clamping jaws include a cylinder fixing seat, a cylinder connecting piece is installed in the middle position of the described cylinder fixing seat, the described cylinder connecting piece is connected to one end of the rotating arm through a pin shaft with an oil groove, the other end of the described rotating arm is connected to the upper part of the described claw arm through a pin shaft, the described claw arm is connected to the connecting plate through a rotating shaft and a rotating shaft baffle is installed on the inner side of the connecting plate, the described claw arm is respectively installed with clamping jaw rubber blocks on both sides of the bottom, the described rubber block connecting plate is between the claw arm and the clamping jaw rubber block and is connected through a round cover nut, and the described two ends of the described rotating arm are respectively installed with oil cups.

[0010] The bag loading success positive pressure detection device, the upper part of the pneumatic clamp is connected to the cylinder through a flange, the top of the cylinder has a cylinder flange, and the two sides of the cylinder fixing seat are connected to the connecting plate through bolts.

[0011] A bag loading success positive pressure detection device and detection method, the method comprising the following steps:

[0012] First, the present application forms a positive pressure detection device through a precision pressure reducing valve IR2000, a three-way direct-acting solenoid valve VT307, a controller PSE300 of two pressure sensors, two three-way valve seats, a joint, an air pipe, and a pneumatic clamp;

[0013] When the program runs to the point where the jaws at the bottom of the claw arm are closed, the three-way direct-acting solenoid valve is energized, and the positive pressure air is adjusted through the precision pressure reducing valve. The positive pressure air passes through the three-way direct-acting solenoid valve and enters the three-way valve seat and the pressure sensor controller, and then enters the jaws at the bottom of the claw arm. If a packaging bag is clamped between the two jaws, the positive pressure air is cut off, and the pressure sensor controller displays high pressure. On the contrary, if the bag is not clamped between the two jaws, the positive pressure air is directly discharged into the atmosphere, and the pressure sensor controller displays low pressure. The pressure sensor controller is set with a certain pressure value. When it is greater than this pressure, the pressure sensor controller outputs a signal. On the contrary, when the pressure is lower than the set value of the pressure sensor controller, the pressure sensor controller has no signal output. This detection method can reliably and accurately determine whether the bagging is successful. In the detection circuit, in order to ensure that the bag is not too high, which will affect the success rate of bag opening, high and low two-way detection is set. Only when the packaging bag is successfully clamped between the high and low detections can it be considered a true bagging success.

[0014] Beneficial effects:

[0015] 1. The present invention is a positive pressure detection device for bag loading success. The structure determines whether the packaging bag is successfully clamped by the change of positive pressure air pressure. There is no mechanical fatigue and signal misjudgment problem. It can adapt to various material environments and the detection is accurate and reliable.

[0016] 2. In the detection circuit of the present invention, in order to ensure that the bag is not placed too high, which will affect the success rate of bag opening, high and low detection are set. Only when the packaging bag is successfully clamped between the high and low detection, the bag is considered to be successfully placed, which increases the reliability of the detection.

[0017] 3. The present invention uses a pressure sensor controller to display high and low pressures, so there is no need to clean dust regularly. The detection device is safe to use and accurate in detection.

[0018] 4. The present invention is a device and method for detecting whether the clamping hand has successfully clamped the packaging bag, which is suitable for automatic bagging machines. It is specifically used to detect whether the packaging bag is successfully clamped by the clamping hand before the material enters the packaging bag in the fully automatic quantitative packaging equipment. This technology is a key link in the fully automatic packaging equipment. Description of the drawings:

[0020] Attached Figure 1 It is a structural schematic diagram of the present invention.

[0021] Attached Figure 2 Yes Figure 1Front view of the pneumatic gripper.

[0022] Attached Figure 3 Yes Figure 2 AA section view.

[0023] Attached Figure 4 Yes Figure 2 Left view of .

[0024] Attached Figure 5 Yes Figure 1 Stereoscopic diagram. Specific implementation method:

[0026] Embodiment 1:

[0027] A positive pressure detection device for successful bagging, comprising: a pneumatic clamp 22, a clamp arm 8 at the bottom of the pneumatic clamp connected to a rubber block connecting plate 12 by a bolt, a positive pressure low detection hole 13 and a positive pressure high detection hole 14 respectively provided on the rubber block connecting plate, the positive pressure low detection hole and the positive pressure high detection hole respectively connected to a pressure sensor controller 18 through a pipeline, the pressure sensor controller connected to a solenoid valve 19 through a three-way connection, the solenoid valve connected to a pressure reducing valve 20 through a pipeline, the left end of the pressure reducing valve is a positive pressure air inlet 21; the solenoid valve is a three-way direct-acting solenoid valve VT307, the pressure sensor controller is PSE300, and the pressure reducing valve is a precision pressure reducing valve IR2000.

[0028] Embodiment 2:

[0029] According to the bag loading success positive pressure detection device described in Example 1, the pneumatic clamp includes a cylinder fixing seat 1, a cylinder connecting piece 2 is installed in the middle position of the cylinder fixing seat, the cylinder connecting piece is connected to one end of the rotating arm 3 through a pin shaft 5 with an oil groove, the other end of the rotating arm is connected to the upper part of the claw arm through a pin shaft 4, the claw arm is connected to the connecting plate 10 through a rotating shaft 6 and a rotating shaft baffle 11 is installed on the inner side of the connecting plate, the two sides of the bottom of the claw arm are respectively installed with clamping jaw rubber blocks 9, the rubber block connecting plate is between the claw arm and the clamping jaw rubber block and is connected through a round cover nut 17, and oil cups 7 are respectively installed at both ends of the rotating arm.

[0030] Embodiment 3:

[0031] According to the bag loading success positive pressure detection device described in Example 2, the upper part of the pneumatic clamp is connected to the cylinder 15 through a flange, the top of the cylinder has a cylinder flange 16, and the two sides of the cylinder fixing seat are connected to the connecting plate through bolts.

[0032] Embodiment 4:

[0033] According to the detection method of the bag loading success positive pressure detection device described in embodiments 1-3, the method comprises the following steps:

[0034] First, the present application forms a positive pressure detection device through a precision pressure reducing valve IR2000, a three-way direct-acting solenoid valve VT307, a controller PSE300 of two pressure sensors, two three-way valve seats, a joint, an air pipe, and a pneumatic clamp;

[0035] When the program runs to the point where the jaws at the bottom of the claw arm are closed, the three-way direct-acting solenoid valve is energized, and the positive pressure air is adjusted through the precision pressure reducing valve. The positive pressure air passes through the three-way direct-acting solenoid valve and enters the three-way valve seat and the pressure sensor controller, and then enters the jaws at the bottom of the claw arm. If a packaging bag is clamped between the two jaws, the positive pressure air is cut off, and the pressure sensor controller displays high pressure. On the contrary, if the bag is not clamped between the two jaws, the positive pressure air is directly discharged into the atmosphere, and the pressure sensor controller displays low pressure. The pressure sensor controller is set with a certain pressure value. When it is greater than this pressure, the pressure sensor controller outputs a signal. On the contrary, when the pressure is lower than the set value of the pressure sensor controller, the pressure sensor controller has no signal output. This detection method can reliably and accurately determine whether the bagging is successful. In the detection circuit, in order to ensure that the bag is not too high, which will affect the success rate of bag opening, high and low two-way detection is set. Only when the packaging bag is successfully clamped between the high and low detections can it be considered a true bagging success.

Claims

1. A detection method based on a bag loading success positive pressure detection device, characterized in that: The bag loading success positive pressure detection device comprises a pneumatic clamp; the clamp arm at the bottom of the pneumatic clamp is connected to the rubber block connection plate by a bolt, the rubber block connection plate is provided with a low positive pressure detection hole and a high positive pressure detection hole, the low positive pressure detection hole and the high positive pressure detection hole are respectively connected to the pressure sensor controller through a pipeline, the pressure sensor controller is connected to the electromagnetic valve through a tee, the electromagnetic valve is connected to the pressure reducing valve through a pipeline, and the left end of the pressure reducing valve is a positive pressure air inlet; The pneumatic clamp comprises a cylinder fixing seat, a cylinder connecting piece is installed in the middle of the cylinder fixing seat, the cylinder connecting piece is connected to one end of the rotating arm through a pin shaft with an oil groove, the other end of the rotating arm is connected to the upper part of the claw arm through a pin shaft, the claw arm is connected to the connecting plate through a rotating shaft and a rotating shaft stopper is installed on the inner side of the connecting plate, the two sides of the bottom of the claw arm are respectively installed with clamping rubber blocks, the rubber block connecting plate is between the claw arm and the clamping rubber block and is connected through a round cover nut, and oil cups are respectively installed at both ends of the rotating arm; The detection process includes the following steps: When the program runs to the point where the clamping jaws at the bottom of the claw arm close, the solenoid valve is energized, and the positive pressure air is adjusted through the pressure reducing valve. The positive pressure air passes through the solenoid valve and enters the three-way valve seat and the pressure sensor controller, and then enters the clamping jaws at the bottom of the claw arm. If a packaging bag is clamped between the two clamping jaws, the positive pressure air is cut off and the pressure sensor controller displays high pressure. On the contrary, if the bag is not clamped between the two clamping jaws, the positive pressure air is directly discharged into the atmosphere; the pressure sensor controller displays low pressure. The pressure sensor controller is set with a certain pressure value. When the pressure is greater than this pressure, the pressure sensor controller outputs a signal. On the contrary, when the pressure is lower than the set value of the pressure sensor controller, the pressure sensor controller has no signal output.

2. The detection method according to claim 1, characterized in that: The upper part of the pneumatic clamp is connected to the cylinder through a flange, the top of the cylinder is provided with a cylinder flange, and both sides of the cylinder fixing seat are connected to the connecting plate through bolts.

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