A vacuum adsorption device for a CNC cutting machine for flexible materials

Abstract

The utility model relates to the technical field of flexible material CNC cutting machines, and in particular to a vacuum adsorption device for flexible material CNC cutting machines, comprising a vacuum pump, a two-position four-way reversing pneumatic valve being arranged on one side of the vacuum pump, a first interface of the two-position four-way reversing pneumatic valve being connected to an air inlet pipe of the vacuum pump, a second interface of the two-position four-way reversing pneumatic valve being connected to an air outlet pipe of the vacuum pump, a third interface of the two-position four-way reversing pneumatic valve being connected to an exhaust pipe, a fourth interface of the two-position four-way reversing pneumatic valve being connected to an air suction pipe, the other end of the air suction pipe being connected to a multi-region adsorption platform through an air delivery component, an electromagnetic pressure relief valve and a manual regulating valve being connected between the two-position four-way reversing pneumatic valve and the multi-region adsorption platform on the air suction pipe, the electromagnetic pressure relief valve and the manual regulating valve being connected in series, and the electromagnetic pressure relief valve being electrically connected to an external time relay; the utility model can quickly adjust the pressure relief amount according to the size and thickness of the adsorption material.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible material numerical control cutting machines, in particular to a vacuum adsorption device used for flexible material numerical control cutting machines. Background Art

[0002] With the rapid development of science and technology and the sharp increase in social labor costs, many cutting machines that can replace most traditional manual cutting of flexible materials have been launched on the market, aiming to reduce labor costs through cutting machines. However, in actual cutting operations, flexible materials may be light in weight and easily affected by external forces or dragged by the cutting device during cutting. Flexible materials are prone to displacement, wrinkles and other problems, which greatly affects the cutting accuracy and effect. In order to solve this problem, a vacuum adsorption device was introduced.

[0003] Today's vacuum adsorption devices adsorb and fix flexible materials when they are being cut. After the cutting is completed, when feeding begins, the vacuum pump blows air in the opposite direction to suspend the flexible material on the cutting table of the cutting machine, thereby avoiding direct contact and friction between the material and the cutting table. This not only reduces the risk of scratches or wear on the surface of the material, but also helps to maintain the integrity and quality of the material; it also enables the flexible material to move precisely on the cutting table, improving the precision and accuracy of the cutting, while helping to achieve a more uniform feeding process, avoiding accumulation or jamming of the material in certain parts, and ensuring the continuity and stability of the cutting.

[0004] When the existing vacuum adsorption device performs reverse blowing on flexible materials, since some processed materials are not airtight, when the vacuum pump performs reverse blowing, if the air pressure is set too high, the gas is difficult to escape quickly between the material and the cutting table, and will quickly accumulate to form a high-pressure area, which will "lift" the material partially from the cutting table to form a phenomenon similar to a bulge. At this time, if the pressure is not relieved, the vacuum is started after the feeding is completed. Due to the large amount of gas stored in the bulge, the material is first adsorbed around the material, and the middle material forms wrinkles, affecting the processing accuracy. Most of them now use a time relay to control the opening of the pressure relief valve for pressure relief. However, materials of different sizes and thicknesses require different amounts of pressure relief, which requires shutdown, and then manual frequent adjustment of the time relay parameters, which not only increases labor costs and operational complexity, but also greatly reduces production efficiency. Utility Model Content

[0005] The main technical problem to be solved by the utility model is to provide a vacuum adsorption device for a flexible material CNC cutting machine which has a simple structure, is easy to operate, and can quickly adjust the pressure relief amount according to the size and thickness of the adsorbed material.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A vacuum adsorption device for a flexible material CNC cutting machine comprises a vacuum pump, a two-position four-way reversing pneumatic valve is arranged on one side of the vacuum pump, a first interface of the two-position four-way reversing pneumatic valve is connected to an air inlet pipe of the vacuum pump, a second interface of the two-position four-way reversing pneumatic valve is connected to an air outlet pipe of the vacuum pump, a third interface of the two-position four-way reversing pneumatic valve is connected to an exhaust pipe, a fourth interface of the two-position four-way reversing pneumatic valve is connected to an air suction pipe, the other end of the air suction pipe is connected to a multi-region adsorption platform through an air delivery component, an electromagnetic pressure relief valve and a manual regulating valve are connected between the two-position four-way reversing pneumatic valve and the multi-region adsorption platform on the air suction pipe, and the electromagnetic pressure relief valve and the manual regulating valve are connected in series, the electromagnetic pressure relief valve is electrically connected to an external time relay, and the two-position four-way reversing pneumatic valve and the vacuum pump are electrically connected to an external controller.

[0008] The following is a further optimization of the above technical solution by the utility model:

[0009] A pressure gauge is provided on the suction pipe of the vacuum pump.

[0010] Further optimization: the electromagnetic pressure relief valve is connected to the suction pipe through a three-way connection.

[0011] Further optimization: the air outlet end of the exhaust pipe is connected to a muffler through an elbow.

[0012] Further optimization: the muffler is arranged vertically to the exhaust pipe, and the air outlet direction of the muffler is upward.

[0013] Further optimization: the gas delivery assembly includes a gas distribution pipe fixedly connected to the suction pipe, and a plurality of gas delivery pipes are fixedly connected to the gas distribution pipe, and the other end of each gas delivery pipe is respectively connected to the corresponding area of ​​the corresponding multi-area adsorption platform.

[0014] Further optimization: the gas pipelines are all provided with electric control valves for controlling the on and off of the gas pipelines.

[0015] Further optimization: the gas pipeline is a flexible pipe.

[0016] The utility model coordinates the manual regulating valve, the electromagnetic pressure relief valve and the external time relay, so that not only can the pressure relief be accurately controlled according to the preset time, but also it helps to accurately release the adsorption force at a specific time node to ensure that the material can be smoothly separated from the adsorption table after the cutting is completed, and the production process will not be affected by the pressure relief being released too early or too late, and the operator can manually adjust the manual regulating valve according to the actual situation, so as to flexibly adjust the pressure relief flow, and then ensure the same pressure relief time to adapt to the pressure relief required by flexible materials of different materials, thicknesses and shapes.

[0017] By adopting the above technical solution, the utility model has a simple structure, is easy to operate, and can quickly adjust the pressure relief amount according to the size and thickness of the adsorption material.

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall structural view of an embodiment of the utility model.

[0020] 1- vacuum pump; 2- two-position four-way reversing pneumatic valve; 3- air inlet pipe of vacuum pump; 4- air outlet pipe of vacuum pump; 5- exhaust pipe; 6- air suction pipe; 7- air delivery assembly; 71- air distribution pipe; 72- air delivery pipe; 73- electric control valve; 8- multi-zone adsorption platform; 9- electromagnetic pressure relief valve; 10- manual regulating valve; 11- three-way; 12- elbow; 13- muffler; 14- pressure gauge. DETAILED DESCRIPTION

[0021] like Figure 1 As shown, a vacuum adsorption device for a flexible material CNC cutting machine comprises a vacuum pump 1, a two-position four-way reversing pneumatic valve 2 is arranged on one side of the vacuum pump 1, a first interface of the two-position four-way reversing pneumatic valve 2 is connected to an air inlet pipe 3 of the vacuum pump, a second interface of the two-position four-way reversing pneumatic valve 2 is connected to an air outlet pipe 4 of the vacuum pump, a third interface of the two-position four-way reversing pneumatic valve 2 is connected to an exhaust pipe 5, a fourth interface of the two-position four-way reversing pneumatic valve 2 is connected to an air suction pipe 6, the other end of the air suction pipe 6 is connected to a multi-region adsorption platform 8 through a gas delivery component 7, an electromagnetic pressure relief valve 9 and a manual regulating valve 10 are connected between the two-position four-way reversing pneumatic valve 2 and the multi-region adsorption platform 8 on the air suction pipe 6, and the electromagnetic pressure relief valve 9 and the manual regulating valve 10 are connected in series, the electromagnetic pressure relief valve 9 is electrically connected to an external time relay, and the two-position four-way reversing pneumatic valve 2 and the vacuum pump 1 are electrically connected to an external controller.

[0022] During specific use, when it is necessary to adsorb flexible materials for cutting, the external controller receives an instruction to start adsorption, and controls the switching of the two-position four-way reversing pneumatic valve 2 to connect the air inlet pipe 3 of the vacuum pump with the air suction pipe 6, and the air outlet pipe 4 of the vacuum pump with the exhaust pipe 5; then the external controller starts the vacuum pump 1, and draws air from the multi-zone adsorption table 8 through the air suction pipe 6. The air passes through the air suction pipe 6, the two-position four-way reversing pneumatic valve 2, the air inlet pipe 3 of the vacuum pump, and the air outlet pipe 4 of the vacuum pump, and is finally discharged from the exhaust pipe 5. A negative pressure is formed in the multi-zone adsorption table 8, which adsorbs the flexible material evenly, providing stable conditions for cutting.

[0023] Subsequently, in the adsorption state, the CNC cutting operation of the flexible material is performed. After the cutting is completed, the external controller receives a release command. At this time, the external controller controls the switching of the two-position four-way reversing pneumatic valve 2 to connect the air outlet pipe 4 of the vacuum pump with the air suction pipe 6, and the air inlet pipe 3 of the vacuum pump with the exhaust pipe 5. As the vacuum pump 1 continues to operate, the air flow direction changes, and gas is blown into the multi-region adsorption table 8 to realize the backblowing operation, and the flexible material is backblown, so that the flexible material is quickly separated from the adsorption table for easy transportation.

[0024] After the backblowing is completed, the external time relay counts according to the preset time. When the preset time is reached, the time relay sends a signal to the electromagnetic pressure relief valve 9, and the electromagnetic pressure relief valve 9 opens to perform a pressure relief operation to restore the pressure in the multi-zone adsorption table 8 to normal, so as to remove the cut flexible material.

[0025] During the entire working process, the pressure relief flow is first flexibly adjusted through the manual regulating valve 10 according to the characteristics of different flexible materials and actual working requirements.

[0026] With this design, firstly, by setting a two-position four-way reversing pneumatic valve 2, the flow direction of the gas can be flexibly changed to realize the switching of the air inlet and outlet of the vacuum pump 1, thereby improving the working efficiency and flexibility of the system. When it is necessary to quickly adsorb the material, the airflow direction can be quickly adjusted to achieve efficient adsorption; and when the material needs to be released after the cutting is completed, it can be switched in time, which is convenient for operation.

[0027] Secondly, the electromagnetic pressure relief valve 9 is electrically connected to the external time relay, and can perform precise pressure relief control according to the preset time, which helps to accurately release the adsorption force at a specific time node, ensuring that the material can be smoothly separated from the adsorption table after cutting is completed, and will not affect the production process due to premature or late pressure relief.

[0028] Furthermore, the setting of the manual regulating valve 10 allows the operator to manually and flexibly adjust the pressure relief flow rate according to actual conditions, thereby ensuring the same pressure relief time to adapt to the pressure relief amount required by flexible materials of different materials, thicknesses and shapes.

[0029] In addition, the vacuum pump 1 is electrically connected to an external controller, which enables precise control of the working state of the vacuum pump 1 and can adjust the operating parameters of the vacuum pump 1 according to the requirements of the cutting process, thereby achieving the purpose of energy saving and optimizing the working effect.

[0030] Finally, the suction pipe 6 is connected to the multi-region adsorption platform 8 through the gas delivery component 7, realizing independent control of different regions, improving the uniformity and stability of adsorption, and ensuring the cutting accuracy and quality.

[0031] A pressure gauge 14 is provided on the air inlet pipe 3 of the vacuum pump.

[0032] With this design, a pressure gauge 14 is provided on the air inlet pipe 3 of the vacuum pump. Firstly, it enables the operator to know the pressure condition inside the adsorption device in real time, so that during the adsorption process, it can be intuitively seen whether the pressure reaches the expected value to ensure that the flexible material is firmly adsorbed.

[0033] Secondly, if the pressure is abnormal, it can promptly indicate the possible fault, so that when there is a pipeline leak, valve failure or vacuum pump 1 performance degradation, the problem can be easily and quickly located and solved, reducing equipment downtime.

[0034] Third, by observing the pressure changes, the working state of the vacuum pump 1, the two-position four-way reversing pneumatic valve 2 or the electromagnetic pressure relief valve 9 and other components can be adjusted according to different flexible materials and cutting requirements to achieve the best adsorption effect and work efficiency.

[0035] Fourth, avoid safety hazards caused by excessive or low pressure, such as insufficient adsorption causing material displacement and affecting cutting accuracy, or excessive pressure causing damage to equipment and materials.

[0036] The electromagnetic pressure relief valve 9 is connected to the air intake pipe 6 via a three-way connection 11 .

[0037] Firstly, this design makes the installation of the electromagnetic pressure relief valve 9 easier and more compact, and the tee 11 can achieve effective connection between the electromagnetic pressure relief valve 9 and the intake pipe 6 without changing the original direction of the intake pipe 6, saving installation space and making the entire pipeline layout more concise and orderly.

[0038] Secondly, the connection through the three-way 11 can ensure good sealing between the electromagnetic pressure relief valve 9 and the suction pipe 6, thereby reducing the possibility of gas leakage, thereby ensuring the adsorption effect and working stability of the vacuum adsorption device.

[0039] Furthermore, the connection mode of the three-way 11 is conducive to the uniform distribution and flow of gas, so that during the pressure relief process, the gas can be discharged from the suction pipe 6 more evenly through the three-way 11, avoiding local pressure mutations and airflow turbulence, and reducing the impact and damage to the system.

[0040] In addition, the connection of the three-way 11 is also convenient for subsequent maintenance and overhaul, so that when the electromagnetic pressure relief valve 9 fails or needs to be replaced, the connection mode of the three-way 11 can more conveniently perform disassembly and installation operations, reducing maintenance time and cost.

[0041] The gas outlet end of the exhaust pipe 5 is connected to a muffler 13 through an elbow 12 .

[0042] With this design, firstly, the muffler 13 can effectively reduce the noise generated during exhaust. During the operation of the equipment, the gas discharged by the vacuum pump 1 may generate a large airflow noise, and the muffler 13 can significantly reduce this noise, creating a relatively quiet working environment, helping to protect the hearing health of the operator and improving the working comfort.

[0043] Secondly, the setting of the elbow 12 helps to change the direction of exhaust, making the exhaust smoother and reducing the resistance and turbulence of the air flow, which can reduce the pressure loss of the exhaust system and improve the working efficiency of the vacuum pump 1.

[0044] Furthermore, the muffler 13 can also reduce the gas pulsation and impact during exhaust to a certain extent, making the exhaust process smoother, thereby reducing the vibration and wear of the exhaust pipe 5 and related connecting parts, and extending the service life of the entire exhaust system.

[0045] The muffler 13 is arranged vertically to the exhaust pipe 5 , and the air outlet direction of the muffler 13 faces upward.

[0046] This design, firstly, the vertical layout can save installation space. In some equipment layouts with limited space, this vertical design can better utilize the vertical space, avoid conflicts with other components, and make the structure of the entire device more compact.

[0047] Secondly, the upward direction of the gas outlet helps to avoid the exhaust gas from blowing directly onto the operator or the surrounding work area, which not only reduces interference with personnel, but also prevents the exhaust gas from adversely affecting nearby sensitive equipment or materials.

[0048] Thirdly, the upward air outlet direction helps the gas diffuse into the atmosphere faster and reduces the possibility of local gas accumulation, which is very beneficial for working environments where harmful gases may exist or good air circulation is required.

[0049] Fourthly, the vertically arranged and upward air outlet can reduce the probability of dust, debris, etc. entering the muffler 13 and the exhaust pipe 5 to a certain extent, thereby reducing the risk of pipeline blockage and equipment failure, and reducing the workload of maintenance and cleaning.

[0050] The gas delivery assembly 7 includes a gas distribution pipe 71 fixedly connected to the suction pipe 6 , and a plurality of gas delivery pipes 72 are fixedly connected to the gas distribution pipe 71 , and the other end of each gas delivery pipe 72 is respectively connected to a corresponding area of ​​the corresponding multi-area adsorption platform 8 .

[0051] This design can achieve uniform adsorption, so that each area of ​​the multi-area adsorption table 8 is subjected to consistent force, ensuring that the material is not deformed due to uneven force during cutting.

[0052] The gas delivery pipe 72 is provided with an electric control valve 73 for controlling the on-off of the gas delivery pipe 72 .

[0053] This design not only enables independent control of each area of ​​the multi-area adsorption table 8, but also enables the adsorption function of a specific area to be flexibly turned on or off according to the shape, size and cutting requirements of the flexible material. When flexible materials of different types and specifications need to be processed, the adsorption area can be quickly adjusted, thereby improving the versatility and adaptability of the equipment.

[0054] The gas delivery pipe 72 is a flexible pipe.

[0055] With this design, firstly, the flexible pipe has good bending and stretching properties, and can more flexibly adapt to different layouts and space restrictions during installation, reducing the difficulty and time of installation.

[0056] Secondly, vibration or displacement may occur during the operation of the equipment. Flexible pipes can absorb and buffer the stress generated by these movements, reduce stress concentration at the joints, and reduce the risk of pipeline rupture or damage.

[0057] Third, when the gas pipe 72 fails or needs to be replaced, the flexible pipe is easier to disassemble and install, which improves maintenance efficiency and reduces maintenance costs.

[0058] Fourthly, when the multi-region adsorption platform 8 needs to be adjusted or moved to a certain position during operation, the flexible tube can better adapt to such changes and ensure the stability of gas transmission.

[0059] Fifth, the flexible pipe can absorb and reduce the vibration and noise transmission generated by gas flow to a certain extent, and optimize the working environment. Therefore, when the equipment needs to be upgraded and the position of the adsorption platform changes, the flexible gas pipe 72 can be easily adjusted accordingly without replacing the entire pipeline system; when the equipment generates vibration during operation, the flexible pipe can effectively prevent the loosening or rupture of the pipeline connection caused by vibration.

[0060] In this embodiment, all parts are prior art and can be purchased. They are components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0061] For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the protection scope of the present invention.

Claims

1. A vacuum adsorption device for a flexible material CNC cutting machine, characterized in that: The invention comprises a vacuum pump (1), wherein a two-position four-way reversing pneumatic valve (2) is arranged on one side of the vacuum pump (1), wherein a first interface of the two-position four-way reversing pneumatic valve (2) is connected to an air inlet pipe (3) of the vacuum pump, a second interface of the two-position four-way reversing pneumatic valve (2) is connected to an air outlet pipe (4) of the vacuum pump, a third interface of the two-position four-way reversing pneumatic valve (2) is connected to an exhaust pipe (5), a fourth interface of the two-position four-way reversing pneumatic valve (2) is connected to an air intake pipe (6), and the air intake pipe ( The other end of the suction pipe (6) is connected to the multi-zone adsorption platform (8) through the gas transmission component (7); an electromagnetic pressure relief valve (9) and a manual regulating valve (10) are connected between the two-position four-way reversing pneumatic valve (2) and the multi-zone adsorption platform (8) on the suction pipe (6); the electromagnetic pressure relief valve (9) and the manual regulating valve (10) are connected in series; the electromagnetic pressure relief valve (9) is electrically connected to an external time relay; and the two-position four-way reversing pneumatic valve (2) and the vacuum pump (1) are electrically connected to an external controller.

2. The vacuum adsorption device for a flexible material CNC cutting machine according to claim 1, characterized in that: A pressure gauge (14) is provided on the air inlet pipe (3) of the vacuum pump.

3. The vacuum adsorption device for a flexible material CNC cutting machine according to claim 2, characterized in that: The electromagnetic pressure relief valve (9) is connected to the suction pipe (6) via a three-way connection (11).

4. The vacuum adsorption device for a flexible material CNC cutting machine according to claim 3 is characterized in that: The gas outlet end of the exhaust pipe (5) is connected to a muffler (13) via an elbow (12).

5. The vacuum adsorption device for a flexible material CNC cutting machine according to claim 4, characterized in that: The muffler (13) and the exhaust pipe (5) are arranged vertically, and the air outlet direction of the muffler (13) is upward.

6. The vacuum adsorption device for a flexible material CNC cutting machine according to claim 5, characterized in that: The gas delivery assembly (7) comprises a gas distribution pipe (71) fixedly connected to the air suction pipe (6), a plurality of gas delivery pipes (72) fixedly connected to the gas distribution pipe (71), and the other end of each gas delivery pipe (72) is respectively connected to a corresponding area of ​​the corresponding multi-area adsorption platform (8).

7. The vacuum adsorption device for a flexible material CNC cutting machine according to claim 6, characterized in that: The gas delivery pipe (72) is provided with an electric control valve (73) for controlling the on-off of the gas delivery pipe (72).

8. The vacuum adsorption device for a flexible material CNC cutting machine according to claim 7, characterized in that: The gas transmission pipe (72) is a flexible pipe.

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