Patent Document

(a) TECHNICAL FIELD OF THE INVENTION 
       [0001]    The present invention relates to an air bag machine, and more particularly to an air bag machine, which is simple in structure, small in volume, and capable of producing a thin film with a buffering effect. 
       (b) DESCRIPTION OF THE PRIOR ART 
       [0002]    For example, Taiwan Patent No. M297906, titled “air bag sealing machine”, is proposed. The main action thereof is allowing the upper and lower bag edge of the opening of a package bag to subject to thermal integration to form an air bag by means of a roller driving a metal belt and a rear transmission belt being displaced reversely synchronously. 
         [0003]    Although the patent claims an advantage of high efficiency, it is essentially very complicated in structure, further leading to a high cost and the easy departure and dislocation during a bag film is driven to move forward due to the lack of direction guiding and position limiting means. As a result, the quality of the air bag is not good, and the machine even cannot be operated smoothly. 
       SUMMARY OF THE INVENTION 
       [0004]    The main object of the present invention is to provide an air bag machine, capable of obtaining the direction guide, uneasy departure and dislocation and no influence on the quality of air bags by means of the location correspondence and operational relationship. 
         [0005]    To achieve the object mentioned above, the present invention proposes an air bag machine, including a main body, material pulling module, sealing device and air filling device, where the front end of the main body allows a bag film to be mount on, the material pulling module is configured on the rear end thereof and adapted to drive the bag film, and the sealing device is configured at one side of the material pulling module; and more importantly, the air filling device further includes a cutting element, thereby extending one end of the bag film to pass through the sealing device and material pulling module in sequence after another end thereof is put around the main body to start the operation. As to the actuation of the operation, the material pulling module pulls to move the bag film toward the rear end, and at the same time, the cutting element cuts open the bag film to form a hole entrance thereon, allowing air to enter the bag film through the hole entrance. Thereafter, the hole entrance is sealed by the sealing device immediately such as by means of hot sealing so as to complete the production of the air bag. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0006]      FIG. 1  is a perspective view of the present invention; 
           [0007]      FIG. 2  is a front view of the present invention; 
           [0008]      FIG. 3  is a schematically perspective view of the air filling device; 
           [0009]      FIG. 4  is a schematically perspective view of the driving device; 
           [0010]      FIG. 5  is a perspective view of the present invention viewing from another angle; 
           [0011]      FIG. 6  is a rear view of the present invention; 
           [0012]      FIG. 7  is a front view of the sealing device&#39; 
           [0013]      FIG. 8  is a cross-sectional view of the present invention taken along line A-A shown in  FIG. 7 ; and 
           [0014]      FIG. 9  is a schematic view of a bag film used in the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0015]    Referring to  FIGS. 1 to 9 , it can be seen from the figures that an air bag machine includes: 
         [0016]    a main body  1 , inside which upper, lower roller shafts  10 ,  11  are respectively configured, where one end of the upper roller shaft  10  is coupled to a upper roller  52  described below, and one end of the lower roller shaft  11  a lower roller  54  described below, the main body  1  being further formed with a pair of roller sliding slot  12  allowing each end of the lower roller shaft  11  to be moved along the respective roller sliding slot  12  through a roller bearing  13 , the lower roller being further coupled to a roller lift module  14 , one end of which is coupled to the main body  1  and another end of which is in contact with a cam  15 , and the middle portion of the roller lift module  14  being coupled to the lower roller shaft  11  through a roller connecting piece  16 ; furthermore, inside the main body being further configured with upper, lower material pulling shaft  17 ,  18 , ends of which are respectively coupled to a material pulling module  4  described below, and the main body  1  being further formed with a pair of material pulling slide slots  19  allowing each end of the lower material pulling shaft  18  to be moved along the respective material pulling slide slot  19  through a material pulling bearing  20 , the lower material pulling shaft  18  being coupled to a material pulling lift module  21 , one end of which is coupled to the main body  1  and another end of which is in contact with the cam  15 , and the middle portion of the material pulling lift module  21  being coupled to the lower material pulling shaft  18  through a material pulling connecting piece  22 ; furthermore, the bottom of the main body  1  being coupled to a rotating support  23 ; 
         [0017]    the material pulling module  4 , configured on the rear end of the main body  1  and adapted to drive a bag film to move, and including at least one pair of upper, lower material pulling wheels  41 , 42  in positional correspondence with each other, one of the upper, lower material pulling wheels  41 , 42  being movable vertically and freely. 
         [0018]    a sealing device  5 , configured at one side of the material pulling module  4 , including an outer shell configured on the main body  1 , a heating module  53  configured inside the outer shell and adjacently to at least one upper roller  52 , and at least one lower roller  54  configured inside the outer shell  51  in positional correspondence with the upper roller  52 , where the heating module  53  is configured between each two adjacent upper rollers  52  if more than one upper roller  52  is configured correspondingly; furthermore, one of upper, lower rollers  52 ,  54  being movable vertically and freely; 
         [0019]    an air filling device  6 , configured at one side of the sealing device  5 , including a cutting element  61 ; 
         [0020]    a driving device  7 , combined with the main body  1 ; 
         [0021]    a gear transmission mechanism, combined with the driving device  7 , and coupled to the upper, lower rollers  52 , 54  and the material pulling module  4 ; 
         [0022]    one pair of clamping modules, coupled pivotally to the main body  1  and parallel to the material pulling module  4 . 
         [0023]    Upon operation, the bag film  9  is first put around the main body  1 . Subsequently, one end of the bag film  9  is extended to wear around the clamping modules  8  and then extended continuously to pass through the cutting element  61 , sealing device  5  and the air filling device  6  between the both. Finally, the bag film  9  is combined with the material pulling module  4 . Furthermore, the upper roller  52 , lower roller  54  and material pulling module  4  are driven synchronously via the gear transmission mechanism through the driving device  7  to cause the bag film  9  to be pulled to move by the material pulling module  4 , and the bag film  9  is cut to form a hole entrance through the cutting element  61  when the bag film  9  is moved to the end of the main body  1 , with air being filled into the bag film  9  immediately via the hole entrance to carry out an expansion thereof and the bag film  9  being then pressed and positioned immediately by the upper roller  52  and lower roller  54 , thereby facilitating the hot sealing of the hole entrance carried out by the heating module  53 . 
         [0024]    The further details about the installment steps will be described in the following. In the initial state, the lower material pulling shaft  18  and lower roller shaft  11  are at the lowest positions, and the upper, lower material pulling wheels  41 ,  42  are caused to separate by a definite distance, and also, the upper, lower rollers  52 ,  54  a definite distance, thereby being convenient for the bag film  9  to pass through between the upper, lower material pulling wheel  41 , 42  and between the upper, lower rollers  52 ,  54 . Thereafter, the pre-heating of the sealing device  5  can be carried out by starting the air bag machine after the bag film  9  is installed. At this time, both the roller lift module  14  and material pulling lift module  21  are at the lowered positions; the upper material pulling wheel  41  is separated from the lower material pulling wheel  42 , and the upper roller  52  the lower roller  54  so as to prevent the bag film  9  from being scalded during the pre-heating of the sealing device  5 . Next, the upper, lower material pulling wheel  41 , 42  and the upper, lower roller  52 ,  54  start rotating to cause the roller lift module  14  and material pulling lift module  21  to be raised such that the upper material pulling wheel  41  is in contact with the lower material pulling wheel  42 , and the upper roller  52  the lower roller  54 . As a result, the bag film  9  is driven to move forward, starting the production of the air bag. 
         [0025]    In addition, the rotating support  23  may be rotated to facilitate the storage and transportation of the air bag machine when the air bag machine is intended to store for transportation. 
         [0026]    Furthermore, both the first and second sides  91 , 92  of the bag film  9  are sealed hermetically, and a solid connection  93  between the first, second sides  91 ,  92  is respectively configured in each fixed distance to combine the upper and upper bag films  9  with each other. Thereupon, an accommodation chamber is formed between each two adjacent solid connections  93 , allowing air to be filled therein so that a plurality of air bags can be formed after the air filling and sealing. 
         [0027]    For clarity, the actuation relationship among each sliding slot, each connection piece and each cam is herein further explained. The roller lift module  14  and material pulling lift module  21  are configured adjacently to each other, and one end of the roller lift module  14  and one end of the material pulling lift module  21  are respectively coupled to the main body  1 , and the other ends thereof are coupled pivotally to the cam  15  together. In addition, the roller lift module  14  and material pulling lift module  21  are respectively coupled to the lower roller shaft  11  and lower material pulling shaft  18  through the roller connecting piece  16  and material pulling connecting piece  22 . Therefore, the lower roller shaft  11  and lower material pulling shaft  18  are driven to move up and down through the roller lift module  14 , material pulling lift module  21  and the roller connecting piece  18 , material pulling connecting piece, and at the same time, the lower roller shaft  11  is driven to move the roller bearing  13  to slide up and down along the roller sliding slot  12 , and the lower material pulling shaft  18  is driven to move the material pulling bearing  20  to slide up and down along the material pulling sliding slot  19  as well. 
         [0028]    Furthermore, the driving device  7  is respectively geared with the upper material pulling shaft  17 , upper roller shaft  10 , lower material pulling shaft  18  and lower roller shaft  11  through a plurality of gear trains, allowing it to drive the upper material pulling shaft  17 , upper roller shaft  10 , lower material pulling shaft  18  and lower roller shaft  11  to move smoothly.

Technology Category: 7