Automatic grabbing test machine control gas circuit

Abstract

The utility model discloses an automatic grabbing test machine control gas circuit, which comprises a confluence plate, a plurality of miniature electromagnetic valves and a gripper unit, the output end of each miniature electromagnetic valve is respectively connected with the interface of the gripper unit, and one miniature electromagnetic valve or two miniature electromagnetic valves in one group are connected with the gripper unit. According to the utility model, the miniature electromagnetic valve is fixedly arranged through the confluence plate, and the miniature electromagnetic valve is communicated through the air channel inside the confluence plate, so that the working state of the gripper unit is controlled. Due to the fact that different types of gripper units need to adopt different point positions of the miniature electromagnetic valves, the miniature electromagnetic valves are grouped, and different numbers of miniature electromagnetic valves are connected according to control point position requirements of different gripper units. Therefore, setting and quick replacement of control gas circuits of different gripper units on the automatic gripping test machine are facilitated, and the universality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clothing textile processing equipment, in particular to a control air circuit of an automatic grabbing and testing machine. Background Art

[0002] During the garment processing process, pneumatic grippers or air nozzles are used to pick up the fabric, moving it to the overlapping position for overlapping, and then sewing the overlapping fabric together through the sewing mechanism. Because different products use different parameters such as fabric specifications and thickness, when using grippers to grab the fabric, the location of the fabric to grab and the amount of negative pressure to use for adsorption will affect whether the fabric can be grabbed, whether the fabric will fall during the grabbing and moving process, and whether the fabric will wrinkle or fold when placed. Therefore, before the fabric is automatically processed, the gripper needs to be debugged.

[0003] If a pneumatic needle claw or a pneumatic clamp is used as a gripper unit to pick up the fabric, a set of air circuits must be set up for the output and retraction of the pneumatic needle claw or the pneumatic clamp respectively. Generally, a two-position five-way solenoid valve is used for control, and different pathways are used to connect the two ends of the air circuit of the pneumatic needle claw or the pneumatic clamp respectively, so as to realize the control of the push-out and retraction of the pneumatic needle claw or the pneumatic clamp.

[0004] If a vacuum suction nozzle is used as a gripper unit to adsorb the fabric, each vacuum suction nozzle needs to be connected to a vacuum solenoid valve for control. The vacuum solenoid valve controls the on-off between the vacuum generator and the vacuum suction nozzle, thereby controlling the adsorption state of the vacuum suction nozzle.

[0005] Pneumatic needle claws and pneumatic grippers require multi-position solenoid valves to achieve multi-point control in order to meet the complex control logic required for precise grasping and releasing. The control logic for pneumatic suction nozzles is relatively simple, requiring only single- or double-acting solenoid valves to activate the suction state of the suction nozzle. In fabric testing and gripping machines, to meet the control requirements of different types of gripper units, a corresponding control air circuit is generally required for each type of gripper unit. This makes the overall control air circuit overly complex, occupies a large amount of space within the equipment control box, and has complex pipelines, making it inconvenient for equipment installation and inspection and maintenance.

[0006] Therefore, the existing technology has defects and needs to be improved. Utility Model Content

[0007] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an automatic grabbing and testing machine to control the air circuit.

[0008] The technical solution of the utility model is as follows: Provided is an automatic gripping test machine control air circuit, comprising: a manifold, a plurality of micro solenoid valves arranged on the manifold, and a gripper unit connected to the micro solenoid valves via pipelines, wherein the number of the micro solenoid valves is an even number, an air inlet hole is provided on one side surface of the manifold, an air path channel is provided inside the manifold corresponding to the air inlet hole, the air path channel is connected to one end of the micro solenoid valve, the output end of each micro solenoid valve is respectively connected to the interface of the gripper unit, and the micro solenoid valves are connected to the gripper unit in groups of one or two;

[0009] The air inlet is connected to a control air circuit, which includes: a total air source, an air storage tank connected to the total air source, an oil-water separator connected to the air outlet end of the air storage tank, and a gripper unit control module connected to the oil-water separator.

[0010] In a possible implementation, the gripper unit adopts a vacuum suction nozzle, a pneumatic needle claw, or a pneumatic clamping claw.

[0011] In a possible implementation, when the gripper unit adopts a vacuum suction nozzle, the gripper unit control module includes a vacuum solenoid valve and a vacuum generator connected to the vacuum solenoid valve, and the vacuum generator is connected to the air inlet.

[0012] In a possible implementation, the output end of the vacuum generator is connected to a three-way pipe, and the rear end of the three-way pipe is respectively connected to a negative pressure gauge and an air inlet of a manifold.

[0013] In a possible implementation, when the gripper unit adopts a pneumatic needle claw or a pneumatic clamping claw, the gripper control adopts a control solenoid valve.

[0014] In a possible implementation, the micro solenoid valve is a micro two-position three-way solenoid valve or a micro two-position two-way solenoid valve.

[0015] In a possible implementation, the rear end of the oil-water separator is connected to an execution air circuit, which is connected to an execution module on the device and controls the working state of the execution module.

[0016] Using the above solution, the present invention secures the micro-solenoid valves via a manifold and connects them via an internal air passageway within the manifold, thereby controlling the operating state of the gripper unit. Because different gripper units require different micro-solenoid valve locations, the micro-solenoid valves are grouped and connected in varying numbers based on the control point requirements of each gripper unit. This facilitates the setup and rapid replacement of control air passages for different gripper units on an automatic gripping tester, improving versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] See also Figure 1 The utility model provides an automatic grasping test machine control air circuit, comprising: a manifold, a plurality of micro solenoid valves arranged on the manifold, and a gripper unit connected to the micro solenoid valves through pipelines, wherein the number of the micro solenoid valves is an even number, an air inlet hole is provided on one side surface of the manifold, an air path channel is provided inside the manifold corresponding to the air inlet hole, the air path channel is connected to one end of the micro solenoid valve, the output end of each of the micro solenoid valves is respectively connected to the interface of the gripper unit, and the micro solenoid valves are connected to the gripper unit in a group of one or two.

[0020] The micro-solenoid valves are fixed in place on a manifold, and connected to the air passages within the manifold to control the gripper unit's operating state. Because different gripper units require different micro-solenoid valve locations, the micro-solenoid valves are grouped and connected in varying numbers based on the control point requirements of each gripper unit. This facilitates the setup and rapid replacement of control air passages for different gripper units on the automatic gripping tester, improving versatility.

[0021] The air inlet is connected to a control air circuit, which includes: a total air source, an air storage tank connected to the total air source, an oil-water separator connected to the air outlet end of the air storage tank, and a gripper unit control module connected to the oil-water separator.

[0022] In some embodiments, the main air source uses an air compressor. After the air is compressed by the air compressor, the compressed air is sent to an air tank for storage. Because the compressed air in the air tank has been compressed by the air compressor, water vapor in the air and oil mist from the equipment or pipelines will be mixed into the compressed air during the compression process, affecting the purity of the compressed air and easily causing contamination of the rear-end pipelines or gripper units, resulting in pipeline blockage or unstable air outlet conditions, which will have a certain adverse effect on the normal use of the gripper unit. Therefore, an oil-water separator is used to filter and separate the oil mist and water vapor mixed in the compressed air in sequence to ensure the purity of the compressed air.

[0023] The gripper unit uses a vacuum nozzle, pneumatic needle claws or pneumatic clamps. Depending on the material of the fabric being tested, different types of gripper units can be selected for fabric gripping tests.

[0024] If a gripping test is performed on a fabric with poor air permeability, a vacuum nozzle is used as the gripper unit. By adjusting the negative pressure generated in the control air path, or changing the number of vacuum nozzles used and adjusting the adsorption position, the adsorption point position, negative pressure and other parameters used by the gripper unit for the best absorption effect on the fabric can be tested.

[0025] If testing the gripping of highly breathable fabric, using a vacuum nozzle as the gripper will prevent effective suction and pickup due to the fabric's permeability. Therefore, a pneumatic gripper can be used. By injecting compressed air into the pneumatic gripper, the internal needles extend outward, piercing the fabric and picking it up. By varying the number of pneumatic grippers used and adjusting the suction position, parameters such as the pickup point at which the gripper achieves optimal fabric suction can be tested.

[0026] If the fabric being tested is not easily accessible via a vacuum nozzle or pneumatic grippers, pneumatic grippers are used to grasp the fabric. To prevent damage to the fabric surface caused by the pneumatic grippers during the gripping process, flexible grippers are used to ensure that the fabric is not noticeably creased or damaged by the gripping process. By injecting compressed air into the pneumatic grippers, the gripping elements move inward, achieving precise gripping. By varying the number of pneumatic grippers used and adjusting the gripping position, parameters such as the pick-up point for optimal fabric pickup can be tested.

[0027] After the gripper unit picks up the fabric, the multi-axis moving module on the testing machine drives the gripper unit to move in multiple axes to test whether the gripper unit can stably grasp the fabric during the movement, thereby determining the gripper unit's picking effect on the fabric.

[0028] In some embodiments, the automated gripper testing machine can be configured with multiple manifolds. Each manifold uses the same micro-solenoid valves, and a corresponding gripper unit control module is used depending on the type of gripper unit to be connected. This allows for quick installation of different gripper units, thereby improving testing efficiency. Furthermore, by using the same micro-solenoid valves, the overall equipment assembly and maintenance costs can be effectively reduced, and foolproof design can be implemented during assembly to avoid assembly anomalies.

[0029] In some embodiments, when the gripper unit utilizes a vacuum nozzle, the gripper unit control module includes a vacuum solenoid valve and a vacuum generator connected to the vacuum solenoid valve, with the vacuum generator connected to the air inlet. The vacuum solenoid valve controls the on / off of the air circuit, while the vacuum generator generates negative pressure, thereby generating a suction force at the vacuum nozzle, thereby applying negative pressure to the fabric and satisfying the need for picking up the fabric.

[0030] In some embodiments, the output end of the vacuum generator is connected to a three-way pipe, the rear end of which is respectively connected to a negative pressure gauge and the air inlet of the manifold. The negative pressure gauge is provided to detect the magnitude of the negative pressure generated by the vacuum generator. Simultaneously, the negative pressure gauge can be electrically connected to a control system, so that the data detected by the negative pressure gauge is transmitted back to the control system. This allows the negative pressure value to be displayed in real time on a display screen connected to the control system, thereby facilitating the operator's intuitive observation and assessment of the negative pressure status at each vacuum nozzle, thereby confirming the pickup and adsorption effect on the fabric.

[0031] In some embodiments, when the gripper unit uses a pneumatic needle claw or pneumatic clamp, the gripper control uses a control solenoid valve. The control solenoid valve directly controls the on / off of the air circuit, thereby controlling the overall compressed air supply state on the manifold to meet the overall switching requirements.

[0032] In some embodiments, the micro solenoid valve adopts a micro two-position three-way solenoid valve or a micro two-position two-way solenoid valve, which can effectively meet the control of the on-off of the air circuit, and reduce the cost investment of the overall equipment while reducing the occupied equipment space. After receiving the control signal, the micro two-position two-way solenoid valve will switch the on-off state of the valve body, thereby controlling the on-off of the air circuit. However, the two-position two-way solenoid valve controls the movement of the valve closing member by electromagnetic force. When the closing member closes the valve body channel, there is a gap, which makes the closing effect poor. The micro two-position three-way solenoid valve includes an air inlet, a working port and an exhaust port. The valve switches the connection state between the air inlet and the working port, or the air inlet and the exhaust port, thereby realizing the on-off of the air circuit. In this utility model, a normally closed miniature two-position three-way solenoid valve is used. When power is off, the valve is closed between the air inlet and the working port, the air path is connected between the air inlet and the exhaust port, and there is no air source input to the gripper unit. When power is on, the valve is between the air inlet and the exhaust port, the air path is connected between the air inlet and the working port, and air source input is received by the gripper unit, activating the corresponding working state. In some embodiments, the exhaust port is blocked with a plug.

[0033] Compared with the miniature two-position two-way solenoid valve, the miniature two-position three-way solenoid valve can effectively ensure the on-off state of the air circuit, avoid air leakage and other situations, thereby meeting the effective control of the gripper unit.

[0034] The rear end of the oil-water separator is connected to an actuator air circuit, which connects to the actuator module on the device and controls its operating state. In some embodiments, the actuator module utilizes a lift cylinder, and compressed air is supplied between the lift cylinder and the oil-water separator via the actuator air circuit. A lift cylinder solenoid valve is provided on the actuator air circuit. In one possible embodiment, a two-position, five-way solenoid valve is used to effectively control the extension and retraction of the lift cylinder, thereby controlling the movement of structures such as the gripper unit.

[0035] In summary, the present invention secures the micro-solenoid valves via a manifold and connects them via an internal air passageway within the manifold, thereby controlling the operating state of the gripper unit. Because different types of gripper units require different micro-solenoid valve locations, the micro-solenoid valves are grouped and connected in varying numbers based on the control point requirements of the different gripper units. This facilitates the setup and rapid replacement of control air passages for different gripper units on an automatic gripping tester, improving versatility.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic grasping test machine control air circuit, characterized in that, include: A manifold, a plurality of micro-solenoid valves disposed on the manifold, and a gripper unit connected to the micro-solenoid valves via pipelines, wherein the number of the micro-solenoid valves is an even number, an air inlet hole is disposed on one side of the manifold, an air path is disposed inside the manifold corresponding to the air inlet hole, the air path is communicated with one end of the micro-solenoid valve, the output end of each micro-solenoid valve is respectively connected to the interface of the gripper unit, and the micro-solenoid valves are connected to the gripper unit in groups of one or two; The air inlet is connected to a control air circuit, which includes: a total air source, an air storage tank connected to the total air source, an oil-water separator connected to the air outlet end of the air storage tank, and a gripper unit control module connected to the oil-water separator.

2. The automatic grasping test machine control air circuit according to claim 1, characterized in that: The gripper unit adopts a vacuum suction nozzle, a pneumatic needle claw or a pneumatic clamping claw.

3. The automatic grasping test machine control air circuit according to claim 2, characterized in that: When the gripper unit adopts a vacuum suction nozzle, the gripper unit control module includes a vacuum solenoid valve and a vacuum generator connected to the vacuum solenoid valve, and the vacuum generator is connected to the air inlet.

4. The automatic grasping test machine control air circuit according to claim 3, characterized in that: The output end of the vacuum generator is connected to a three-way pipe, and the rear end of the three-way pipe is respectively connected to a negative pressure gauge and an air inlet of the manifold.

5. The automatic grasping test machine control air circuit according to claim 2, characterized in that: When the gripper unit adopts a pneumatic needle claw or a pneumatic clamping claw, the gripper control adopts a control solenoid valve.

6. The automatic grasping test machine control air circuit according to claim 1, characterized in that: The micro electromagnetic valve is a micro two-position three-way electromagnetic valve or a micro two-position two-way electromagnetic valve.

7. The automatic grasping test machine control air circuit according to claim 1, characterized in that: The rear end of the oil-water separator is connected to an execution air circuit, and the execution air circuit is connected to an execution module on the device and controls the working state of the execution module.

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