Vacuum water suction device for one-step forming of safety airbag cloth

Abstract

The utility model provides a vacuum water suction device for one-step forming of safety air bag cloth, and relates to the technical field of safety air bag equipment. Comprising a transmission assembly used for driving safety airbag cloth to conduct transmission, a vacuum water suction assembly is rotationally arranged on a transmission path of the safety airbag cloth, and the vacuum water suction assembly comprises a first vacuum water suction pipe and a second vacuum water suction pipe; when the safety air bag cloth penetrates through the transmission gap, the opposite front and back surfaces of the safety air bag cloth are subjected to vacuum water absorption; the first vacuum water suction pipe and the second vacuum water suction pipe are connected with a vacuum pump, a silencing barrel is connected to the rear portion of the vacuum pump, and an automatic adjusting edge blocking strip is arranged above the vacuum water suction pipes to ensure that left and right gaps are even. The vacuum pump is connected with a gas-water separation device for gas-water separation, and water is discharged into the drainage pipeline through the water pump. By means of the scheme, the water absorption efficiency of the safety airbag cloth can be improved, the water content can be controlled, and meanwhile creases can be prevented from being generated on the cloth surface in the production process.

Description

Technical Field

[0001] The utility model relates to the technical field of safety airbag equipment, in particular to a vacuum water absorbing device for one-step forming of safety airbag cloth. Background Art

[0002] When forming an airbag in one step, it is necessary to control the moisture content of the airbag fabric. The moisture content is generally controlled by using a vacuum water absorption device to absorb water from the airbag surface, and the moisture content is controlled by controlling the suction force. However, currently, only one side of the airbag fabric is vacuum-absorbed, which results in poor control accuracy of the moisture content and low efficiency of vacuum water absorption, which reduces the transmission rate of the airbag fabric. In addition, the humid gas discharged by the vacuum water absorption device can easily affect the working environment, resulting in a humid working environment and affecting the production quality of the airbag fabric.

[0003] In addition, a side guard strip needs to be arranged above the vacuum water absorption pipe. The existing equipment usually uses manual push-pull adjustment of the side guard strip or uses the transmission shaft to rotate the lead screw to adjust the left and right side guard strips. When the cloth deviates to the left or right, the side guard strips are too close, and the cloth may be folded by the side guard strip moving mechanism. If the adjustment is too wide, the water absorption effect of the cloth surface will be affected. Utility Model Content

[0004] The utility model discloses a vacuum water absorption device for one-step forming of airbag cloth, aiming to improve the problems of the existing vacuum water absorption device that it is difficult to control the moisture content, the water absorption effect is poor and the impact on the production environment is great, and to improve the problem of cloth surface creases.

[0005] The utility model adopts the following scheme:

[0006] The present application provides a vacuum water absorption device for one-step forming of airbag cloth, comprising a transmission component for driving the airbag cloth for transmission, a vacuum water absorption component rotatably arranged on the transmission path of the airbag cloth, the vacuum water absorption component comprising a first vacuum water absorption pipe and a second vacuum water absorption pipe, the first vacuum water absorption pipe and the second vacuum water absorption pipe act on the front and back sides of the airbag cloth respectively to vacuum absorb water from the opposite front and back sides of the airbag cloth; the first vacuum water absorption pipe and the second vacuum water absorption pipe are connected to a vacuum pump, the vacuum pump is connected to an air-water separation device to separate air and water from the extracted humid airflow, and then discharge the water into a drainage pipe through a water pump.

[0007] Furthermore, the vacuum pump is connected to a frequency converter for controlling the suction force of the vacuum pump.

[0008] Furthermore, the first vacuum water absorption pipe and the second vacuum water absorption pipe are evenly provided with a plurality of long water absorption holes inclined to the length direction thereof so as to apply the vacuum suction force to the airbag cloth through the long water absorption holes.

[0009] Furthermore, the inclination angle between the length direction of the long water absorption hole and the length direction of the first vacuum water absorption pipe or the second vacuum water absorption pipe is 10° to 20°.

[0010] Furthermore, the long water absorption holes are symmetrically distributed along the cross section at the midpoint of the first vacuum water absorption pipe or the second vacuum water absorption pipe.

[0011] Furthermore, the vacuum water absorption assembly is provided with an edge tracing device, which includes an edge strip, a moving mechanism, a lead screw, a drive motor and a detection device for detecting the edge of the airbag cloth. The drive motor is suitable for driving the lead screw and the moving mechanism to drive the edge strip to move left and right.

[0012] Furthermore, a filtering device is provided on the negative pressure pipe of the vacuum pump to filter the cotton wool of the airbag cloth to protect the vacuum pump body and prevent impurities from being sucked into the pump body and causing the motor to get stuck.

[0013] Furthermore, the silencer barrel at the rear of the vacuum pump is used to reduce noise and avoid excessive noise when the equipment is in operation.

[0014] Beneficial effects:

[0015] This solution sets two rotatable vacuum water-absorbing pipes for synchronously absorbing water from the airbag cloth on both sides of the airbag cloth at the same time, which can more accurately control the moisture content of the airbag cloth by controlling the suction force, solving the problem of low water absorption efficiency on one side and inability to ensure the same amount of water absorption due to the large thickness of the cloth. By designing the water absorption holes of the vacuum water-absorbing pipe, the inclined water absorption long holes can improve the water absorption efficiency, and the fluff and cloth scraps on the airbag cloth can be synchronously sucked off to ensure the cleanness of the cloth surface, reduce coating abnormalities, and improve production quality. By setting the frequency converter, the suction force of the vacuum pump can be controlled to control the suction force of the vacuum water-absorbing component, thereby controlling the water absorption effect and facilitating the control of the moisture content. The vacuum water-absorbing component is provided with a chasing device, which detects the cloth surface through the chasing device and feeds back to the motor to adjust the left and right side guard strips to ensure that the distance between the two side guard strips is consistent. When the cloth deviates to the left or right, the equipment automatically adjusts to solve the problem that the distance between the guard strips is too close, the cloth may cause creases, and the adjustment is too wide, which affects the water absorption effect of the cloth surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a working schematic diagram of a vacuum water absorption device for one-step forming of a safety airbag cloth according to an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection between a gas-water separation device and a vacuum pump of a vacuum water absorption device for one-step forming of a safety airbag cloth according to an embodiment of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a vacuum water absorption component of a vacuum water absorption device for one-step forming of a safety airbag cloth according to an embodiment of the utility model;

[0019] Figure 4 This is a schematic structural diagram of a vacuum water absorption pipe of a vacuum water absorption device for one-step forming of a safety airbag cloth according to an embodiment of the utility model;

[0020] Figure 5 It is a structural schematic diagram of an edge chasing device of a vacuum water absorbing device for one-step forming of a safety airbag cloth according to an embodiment of the utility model;

[0021] Icons: transmission assembly 1, first vacuum water absorption pipe 2, second vacuum water absorption pipe 3, vacuum water absorption pipe body 31, long water absorption hole 32, side guard strip 33, moving mechanism 34, screw 35, drive motor 36, vacuum pump 4, air-water separation device 5, filtering device 6, airbag cloth 7, water pressure roller 8, pre-drying oven 9, water washing box 10, control valve 11, pressure gauge 12, silencer 13, detection device 14, water pump 15. DETAILED DESCRIPTION

[0022] Combination Figures 1 to 4 As shown, the present embodiment provides a vacuum water absorption device for one-step forming of airbag cloth, comprising a transmission assembly 1 for driving the airbag cloth 7 for transmission, a vacuum water absorption assembly being rotatably arranged on the transmission path of the airbag cloth 7, the vacuum water absorption assembly comprising a first vacuum water absorption pipe 2 and a second vacuum water absorption pipe 3, the first vacuum water absorption pipe 2 and the second vacuum water absorption pipe 3 acting on the front and back sides of the airbag cloth 7 respectively to vacuum absorb water from the opposite front and back sides of the airbag cloth 7; the first vacuum water absorption pipe 2 and the second vacuum water absorption pipe 3 are connected to an air-water separation device 5, to separate air and water from the extracted humid airflow, and then discharge the water into a drainage pipe through a water pump 15, the air-water separation device 5 is connected to a vacuum pump 4, and the vacuum pump 4 provides suction to the vacuum water absorption pipe.

[0023] Combination Figure 2As shown, in this embodiment, the transmission assembly 1 is an existing transmission device for transmitting the airbag cloth 7, such as a transmission device composed of multiple transmission rollers. A vacuum water absorption device is arranged on the movement path of the airbag cloth 7, and is used to absorb the water on the airbag cloth 7 to control the moisture content of the airbag cloth 7. A water washing box 10 is arranged at the front end of the vacuum water absorption device for washing the airbag cloth 7, and a water pressing roller 8 is arranged between the water washing box 10 and the vacuum water absorption device. The airbag cloth 7 passes through the gap between the water pressing rollers 8 to press out most of the water in the airbag cloth 7, so as to facilitate water absorption at the vacuum water absorption device; in a preferred embodiment, the gap between the two water pressing rollers 8 is adjustable to facilitate adjusting the pressure on the airbag cloth 7 to prevent creases caused by excessive pressure. A pre-drying oven 9 is arranged at the rear end of the vacuum water absorption device. After the vacuum water absorption device absorbs water, the moisture content in the airbag cloth 7 can be made more uniform, and creases are not easy to appear when drying in the pre-drying oven 9.

[0024] The first vacuum water suction pipe 2 and the second vacuum water suction pipe 3 are connected to the vacuum pump 4 through a vacuum pipeline. The vacuum pump 4 is connected to a frequency converter. The suction force can be controlled by controlling the working power of the vacuum pump 4 according to the thickness and width of the fabric. The moisture content of the airbag fabric 7 can be controlled by controlling the suction force of the vacuum pump 4 and the transmission speed of the airbag fabric 7. Due to the double-sided water absorption, it can be ensured that each side of the airbag fabric 7 is dehydrated. In a preferred embodiment, the edge strips 33 on the first vacuum water suction pipe 2 and the second vacuum water suction pipe 3 can be automatically adjusted by feeding back test data to the drive motor 36 through the cloth edge detection device 14 to meet the requirements of fabrics of different thicknesses. In addition, a control valve 11 and a pressure gauge 12 are provided on the vacuum water suction pipe to facilitate accurate pressure control. The suction force of the vacuum water suction pipe can also be controlled by the control valve 11.

[0025] Combination Figure 3 to Figure 4As shown, the first vacuum water absorption pipe 2 and the second vacuum water absorption pipe 3 include a vacuum water absorption pipe body 31, and a plurality of water absorption long holes 32 uniformly arranged on the vacuum water absorption pipe body 31 and inclined to the length direction thereof so as to apply vacuum suction to the airbag cloth 7 through the water absorption long holes 32. Here, the inclination angle between the length direction of the water absorption long holes 32 and the length direction of the first vacuum water absorption pipe 2 or the second vacuum water absorption pipe 3 is 10° to 20°, preferably 15°, and the water absorption long holes 32 are symmetrically distributed along the cross section at the midpoint of the vacuum water absorption pipe body 31. Through the inclined water absorption long holes 32, vacuum water can be absorbed at various positions of the airbag cloth 7 during the rotation process, and the uniformity of water absorption can be improved compared with the point hole design. Here, multiple groups of water absorption long holes 32 are arranged around the circumference of the vacuum water absorption pipe body 31 to maintain suction on the airbag cloth 7 during the rotation process. In a preferred embodiment, the long water absorption holes 32 of the first vacuum water absorption pipe 2 and the second vacuum water absorption pipe 3 are staggered to improve water absorption uniformity. Here, by providing the long water absorption holes 32, fluff and cloth scraps on the surface of the airbag cloth 7 can also be adsorbed to clean the surface of the airbag cloth 7. The long hole design can prevent fluff and cloth scraps from blocking the suction holes.

[0026] Combination Figure 5 As shown, in one embodiment, the vacuum water absorption assembly is provided with an edge tracking device, which includes a sidewall strip 33, a moving mechanism 34, a lead screw 35, a driving motor 36 and a detection device 14 for detecting the edge of the airbag cloth, and the sidewall strip 33 is connected to the moving mechanism 34; the detection device 14 for the edge of the airbag cloth can be an infrared sensor or a visual detection device, and the airbag cloth 7 detects the cloth edge position through the detection device 14, and feeds back the signal to the driving motor 36 on the first vacuum water absorption pipe 2 and the second vacuum water absorption pipe 3 in real time. According to the offset set by the program, the driving motor 36 rotates the lead screw 35 to move the moving mechanism 34 on the left and right sides, and automatically adjusts the sidewall strips 33 on both sides to move left and right. During the production process, it is ensured that the airbag cloth 7 maintains a constant distance from the sidewall strip 33, which effectively improves the effect of the vacuum water absorption device, ensures the overall airtightness of the vacuum water absorption tube body 31, automatically adjusts the sidewall strip 33, and also prevents the airbag cloth 7 from moving left and right to cause the moving mechanism 34 to fold the cloth, thereby effectively realizing automation.

[0027] Combination Figure 2As shown, in this embodiment, the vacuum pump 4 is connected to a gas-water separation device 5. The gas-water separation device 5 can use an existing gas-water separation barrel to separate the moist air extracted by the vacuum water absorption component into gas and water, so as to prevent the discharged gas from having a large water content and affecting the production environment. The gas-water separation barrel is an existing mechanism and will not be described here. Furthermore, a filter device 6 is provided on the negative pressure pipe of the vacuum pump 4 to filter the cloth cotton of the airbag cloth 7. The filter device 6 is replaceable to prevent the cloth cotton from entering the vacuum pump 4 and causing the motor to get stuck; further, a silencer barrel 13 is provided at the end of the vacuum pump 4. Since the equipment is noisy in working state, installing a silencer barrel 13 can effectively reduce the working noise.

[0028] Through the solution of this embodiment, the moisture content of the airbag cloth 7 can be controlled more effectively, and the water absorption efficiency and the quality of the airbag cloth 7 can be improved.

[0029] It should be understood that the above are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

[0030] The above description of the drawings used in the implementation manner only shows certain embodiments of the utility model and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

Claims

1. A vacuum water absorption device for one-step forming of airbag cloth, comprising a transmission assembly for driving the airbag cloth for transmission, characterized in that: A vacuum water absorption component is rotatably arranged on the transmission path of the airbag cloth, and the vacuum water absorption component includes a first vacuum water absorption pipe and a second vacuum water absorption pipe, and the first vacuum water absorption pipe and the second vacuum water absorption pipe act on the front and back sides of the airbag cloth respectively to vacuum absorb water from the opposite front and back sides of the airbag cloth; the first vacuum water absorption pipe and the second vacuum water absorption pipe are connected to a vacuum pump, and the vacuum pump is connected to an air-water separation device to separate air and water from the extracted humid airflow, and then discharge the water into the drainage pipe through the water pump.

2. The vacuum water absorption device for one-step forming of airbag cloth according to claim 1, characterized in that: The vacuum pump is connected to a frequency converter for controlling the suction force of the vacuum pump.

3. The vacuum water absorption device for one-step forming of airbag cloth according to claim 1, characterized in that: The first vacuum water absorption pipe and the second vacuum water absorption pipe are evenly provided with a plurality of water absorption long holes inclined to the length direction thereof so as to apply vacuum suction force to the safety airbag cloth through the water absorption long holes.

4. The vacuum water absorption device for one-step forming of airbag cloth according to claim 3, characterized in that: The inclination angle between the length direction of the water absorption long hole and the length direction of the first vacuum water absorption pipe and the second vacuum water absorption pipe is 10° to 20°.

5. The vacuum water absorption device for one-step forming of airbag cloth according to claim 3, characterized in that: The long water absorption holes are symmetrically distributed along the cross section at the midpoint of the first vacuum water absorption pipe and the second vacuum water absorption pipe.

6. The vacuum water absorption device for one-step forming of airbag cloth according to claim 1, characterized in that: The vacuum water absorption assembly is provided with an edge chasing device, which includes an edge strip, a moving mechanism, a lead screw, a drive motor and a detection device for detecting the edge of the airbag cloth. The drive motor is suitable for driving the lead screw and the moving mechanism to drive the edge strip to move left and right.

7. The vacuum water absorption device for one-step forming of airbag cloth according to claim 1, characterized in that: A filtering device is arranged on the negative pressure pipeline of the vacuum pump to filter the cotton wool of the airbag cloth.

8. The vacuum water absorption device for one-step forming of airbag cloth according to claim 1, characterized in that: A silencer barrel is arranged behind the vacuum pump to reduce noise.

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