Patent Document

CROSS-REFERENCE TO RELATED APPLICATION 
       [0001]    This application is a continuation-in-part application of, and claims the priority benefit of, U.S. application Ser. No. 14/271,017, filed on May 6, 2014, which in turn claims the priority benefit of Taiwan application No. 103102503, filed on Jan. 23, 2014. The contents of the above-mentioned patent applications are hereby incorporated by reference in their entirety and made a part of this specification. 
     
    
     FIELD OF THE INVENTION 
       [0002]    This invention is related to a sleeve labeling machine, particularly referring to a shrink film synchronous transmission device with label feeding rollers and label pulling rollers equipped between upper and lower portion of a cutter device. By label feeding rollers, the guide shrink film will be continued to guide down, and after the shrink film was cut by the cutter device, label pulling rollers will continue pulling each shrink film to cover the surface of bottles or cans, in order to prevent wrinkles produced by each shrink film to hinder conveyance and ensure the sleeve labeling machine can accurately sleeve the shrink film on cans or bottles. 
       DESCRIPTION OF RELATED ART 
       [0003]    As the currently marketed sleeve labeling machine, such as the “Hot Shrink Film Guide Mechanism”, a new model of publication No. 379728, mainly the feeding rollers are set surrounding at upper, middle and lower center guide column of the frame respectively; a guide roller is set at the feeding roller set corresponding to the center guide column, and a cutter device is set near the lower center guide column, and then a cutting roller is set near the lower of center guide; an adjustment roller is set at the side of feeding roller set base, between which two guide rods are set; a shaft lever is set between two guide rods; the opposite reverse threads are set at the two ends of the shaft lever, and on the opposite reverse threads, two guide blocks are set respectively; below the guide blocks, two wheel seats are fixed respectively; the wheel seat is equipment with feeding rollers, and the rear end of which is equipped with a pulley and a linkage; each feeding roller&#39;s pulley is equipped with a drive belt, and then the entire mechanism can be operated driving by a motor. 
         [0004]    In other words, the foregoing prior art, primarily by three feeding roller sets at upper, middle and lower center guide column, guide the shrink film on the center guide column to move down; its sole purpose is to make feeding rollers of three seeding roller sets to match the diameter of center guide column so as to adjust the set position, and let the entire mechanism with the shape of cans or bottles show different setting angle, but how to conduct accurate conveyance if the thickness of shrink film subject to change is really in doubt. 
         [0005]    To this end, the present inventor with many years of experience in the design and manufacture of related equipment, studied the structure problem especially for the foregoing prior art to carry out this invention. In addition, this invention need two guide roller sets only, placed at upper and lower cutter device respectively for synchronous operation. 
       SUMMARY OF THE INVENTION 
       [0006]    The purpose of this invention is to provide a conveyance applied on the shrink film with a variety of thickness, to overcome the quality problem of shrink film, and accurately sleeve the shrink film on cans or bottles. It is an innovative sleeve labeling machine. 
         [0007]    To achieve the foregoing object, the sleeve labeling machine of this invention includes a shrink film synchronous transmission device at center column equipped with a label feeding roller set to continuously convey the shrink film down and gradually cover the center column, and after which is cut by a cutter device, anther label pulling roller set synchronously continues pulling each shrink film down, in order to accurately cover the surface of cans or bottles. 
         [0008]    The sleeve labeling machine of this invention is mainly centered with the center column, and the label feeding rollers and the label pulling rollers of the shrink film synchronous transmission device are set at upper and lower cutter device respectively, so that the foregoing label feeding rollers and label pulling rollers produce a synchronous feeding and pulling action against shrink film; even very thin shrink film is not difficult to produce wrinkles, each shrink film can completely cover the surface of cans or bottles. 
         [0009]    The sleeve labeling machine of this invention is provided with a shrink film synchronous transmission device, which set with a linkage gear module and a support frame, the linkage gear module is a left and right symmetrical structure, which from top to bottom is provided with two symmetrical first rotating arms, two symmetrical second rotating arms, two symmetrical third rotating arms, two symmetrical fourth rotating arms, two symmetrical first gears, two symmetrical second gears, two symmetrical third gears, two symmetrical fourth gears and two symmetrical fifth gears. With the multi-section boom structure composed of the rotating arms  231 ,  232 ,  233 ,  234  and the gears  235 ,  236 ,  237 ,  238 ,  239  can increase the adjustable distance between the two feeding pulleys  20  and the two pulling pulleys  21 , and in the process of adjusting the distance will not affect the synchronous rotation of the gears. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0010]      FIG. 1  is a partial front view of the first embodiment of the present invention; 
           [0011]      FIG. 2  is a partial side view of the first embodiment of the present invention; 
           [0012]      FIG. 3  is a partial rear view of the first embodiment of the present invention; 
           [0013]      FIG. 4  is a front view of the second embodiment of the present invention; 
           [0014]      FIG. 5  is an enlarged sectional view of A-A shown in  FIG. 4 ; 
           [0015]      FIG. 6  is a front view of second guide pulleys of the present invention; 
           [0016]      FIG. 7  is an enlarged sectional view of B-B shown in  FIG. 6 ; 
           [0017]      FIG. 8  is a front view of shrink film synchronous transmission device of the second embodiment of the present invention; 
           [0018]      FIG. 9  is an enlarged sectional view of C-C shown in  FIG. 8 ; 
           [0019]      FIG. 10  is a rear view of shrink film synchronous transmission device of the second embodiment of the present invention; and 
           [0020]      FIG. 11  is a partial operation view of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0021]    Herein below preferred the sleeve labeling machine of this invention will be described in detail with reference to the accompanying drawings. 
         [0022]    As shown in  FIGS. 1 to 5 , the sleeve labeling machine of this invention includes at least a center column  1 , equipping with the first column  1   a  and the second column  1   b , and a cutter trough  1   c  between the first column  1   a  and the second column  1   b ; a shrink film unfolding sheet  10  is fixed on the top of the foregoing first column  1   a , so that the shrink film sheet A, can be unfolded via the foregoing shrink film unfolding sheet  10 ; the first guide pulleys  11  and the second guide pulleys  12  are set at two sides of foregoing center column  1 ; the foregoing first guide pulleys  11  and the second guide pulleys  12  are two sets mounted in front and rear sides of the foregoing center column  1 ; the most ideal is the foregoing two first guide pulleys sets  11  and the foregoing two second guide pulley sets  12  form a corresponding linear state each other. The foregoing first guide pulleys  11  are set at the first column  1   a  of the foregoing center column  1 , and the foregoing second guide pulleys  12  are set at the second column  1   b  of the foregoing center column  1 . 
         [0023]    The first passive guide rollers  110  and the second passive guide rollers  120  are set within the foregoing center column  1 , against the corresponding position of the foregoing first guide pulleys  11  and the second guide pulleys  12 ; the first passive guide rollers  110  are in contact with the foregoing first guide pulleys  11 , and the foregoing second passive guide rollers  120  are in contact with the foregoing second guide pulleys  12 . By label feeding rollers  20  and passive guide rollers  200 , the unfolded shrink film is pulled down, along with the center column  1 , to the lowest end of the center column  1 , then pushing by the foregoing second guide pulleys  12  and the second passive guide rollers  120 , the shrink film is completed sleeved on cans or bottles. In addition, the foregoing first guide pulleys  11  and the second guide pulleys  12 , and the label feeding rollers  20  and label pulling rollers  21  of the shrink film synchronous transmission device  2  can be set at vertical position; by the foregoing first guide pulleys  11 , the second guide pulleys  12 , and the label feeding rollers  20  and the label pulling rollers  21  of the shrink film synchronous transmission device  2  in contract with the cross shaft plane of the shrink film, the shrink film can be guided to move down smoothly. 
         [0024]    The foregoing first guide pulleys  11  are passive rollers, which can drive synchronously the foregoing first guide pulleys  11  to turn when the shrink film is guided down. As shown in  FIGS. 4 to 7 , the foregoing second guide pulleys  12  are set with two power element to drive the second guide pulleys  12  to rotate in the reverse direction. The first guide pulleys  11  and the second guide pulleys  12  are respectively provided with a first elevating device  111 , a second elevating device  121 , a first clamping device  112  and a second clamping device  122 , so that the first guide pulleys  11  and the second guide pulleys  12  can adjust its position to match the center column  1 . 
         [0025]    The shrink film synchronous transmission device  2  is set in the middle of the foregoing center column  1 , and between the foregoing first guide pulleys  11  and the second guide pulleys  12 . The foregoing shrink film synchronous transmission device  2  is equipped with label feeding rollers  20  and label pulling rollers  21 ; there are two sets of the foregoing label feeding rollers  20  and two sets of label pulling rollers  21  mounted at right and left sides respectively of the foregoing center column  1 , and the most ideal is presenting by corresponding linear state. The foregoing label feeding rollers  20  are set beside the first column  1   a  of the center column  1 , at the top of the cutter device  3 . And the foregoing label pulling rollers  21  are set at the side of the second column  1   b  of the center column  1 , below the foregoing cutter device  3 . 
         [0026]    As shown in  FIGS. 1 to 3 , the foregoing label feeding rollers  20  and the label pulling rollers  21  using power equipment  22  to drive the mandrel, then it may be with transmission belts  220   a ,  220   b ,  221   a , and  221   b  set around the corresponding axles, to produce the effect of synchronous transmission of label feeding rollers  20  and label pulling rollers  21 , so that the foregoing label feeding rollers  20  and label pulling rollers  21  may turn synchronously, and enable the shrink film A conveyed down by foregoing label feeding rollers  20  to be successfully joined and pulled by label pulling rollers  21 , so that this invention can successfully guide and convey the shrink film A with a variety of thickness. 
         [0027]    As the transmission belts  220   a ,  220   b ,  221   a , and  221   b  will limit the wheel to adjust the space between the two label feeding rollers  20  and the two label pulling rollers  21 , and the durability of the transmission belts is poor. So, as shown in  FIGS. 8 to 10 , the foregoing shrink film synchronous transmission device  2  can provide a linkage gear module  23  and a support frame  24  to replace the foregoing transmission belts  220   a ,  220   b ,  221   a , and  221   b . The linkage gear module  23  is a left and right symmetrical structure, which from top to bottom is provided with two symmetrical first rotating arms  231 , two symmetrical second rotating arms  232 , two symmetrical third rotating arms  233 , two symmetrical fourth rotating arms  234 , two symmetrical first gears  235 , two symmetrical second gears  236 , two symmetrical third gears  237 , two symmetrical fourth gears  238  and two symmetrical fifth gears  239 . 
         [0028]    The two first gears  235  are connected to each other and are fixed on the foregoing support frame  24 , one of the first gear  235  is connected to the power equipment  22 , so that the two first gears can be rotated in the opposite direction. The first gear  235  is set on the top end of the first rotating arm  231 , the second gear  236  is set between the first rotating arm  231  and the second rotating arm  232 , the third gear  237  is set between the second rotating arm  232  and the third rotating arm  233 , the fourth gear  238  is set between the third rotating arm  233  and the fourth rotating arm  234 , and the fifth gear  239  is set on the lower end of the first rotating arm  231 . The third gear  237  is connected to the label feeding rollers  20  to simultaneous rotation, and the fifth gear  239  is connected to the label pulling rollers  21  to simultaneous rotation. 
         [0029]    The foregoing support frame  24  is provided with a third clamping device  241  and a fourth clamping device  242 , the third clamping device  241  is set between the support frame  24  and the label feeding rollers  20  to let the label feeding rollers  20  to be positioned steadily and allow the label feeding rollers  20  to be opened or clamped. The fourth clamping device  242  is set between the support frame  24  and the label pulling rollers  21  to let the label pulling rollers  21  to be positioned steadily and allow the label pulling rollers  21  to be opened or clamped. The foregoing third clamping device  241  and fourth clamping device  242  can be a composite structure consisting of a bi-directional thread drive rod, a slide rail and a carriage. 
         [0030]    Therefore, with the third clamping device  241  and the fourth clamping device  242 , the space between the two label feeding rollers  20  and the two label pulling rollers  21  can be adjusted precisely and hold the shrink film A. Then, the gears  235 ,  236 ,  237 ,  238 ,  239 , the label feeding rollers  20  and the label pulling rollers  21  can be synchronized rotation symmetrically, when the power equipment  22  drive one of the first gear  235  to rotate, enable the shrink film A conveyed down by foregoing label feeding rollers  20  to be successfully joined and pulled by label pulling rollers  21 , so that this invention can successfully guide and convey the shrink film A with a variety of thickness. In addition, the multi-section boom structure composed of the rotating arms  231 ,  232 ,  233 ,  234  and the gears  235 ,  236 ,  237 ,  238 ,  239  can increase the adjustable distance between the two feeding pulleys  20  and the two pulling pulleys  21 , and in the process of adjusting the distance will not affect the synchronous rotation of the gears, to solve the problem of the foregoing transmission belts. 
         [0031]    The first passive label feeding guide rollers  200   a , the second passive label feeding guide rollers  200   b , and the passive label pulling guide rollers  210  are set within the foregoing center column  1 , against the corresponding position of the foregoing label feeding rollers  20  and label pulling rollers  21 , namely, the foregoing first passive label feeding guide rollers  200   a , and the second passive label feeding guide rollers  200   b  are set in the first column  1   a , and the foregoing passive label pulling guide rollers  210  are set in the second column  1   b  of the center column  1 ; by two points of the foregoing first passive label feeding guide rollers  200   a  and the second passive label feeding guide rollers  200   b  in contact with the foregoing label feeding rollers  20 , forms a triangle label feeding space  200   c , so that the shrink film can be successfully pulled by the label feeding rollers  20 , the first passive label feeding guide rollers  200   a , and the second passive label feeding guide rollers  200   b , and guided to convoy down by the center column  1  as axle; the foregoing passive label pulling guide rollers  210  and the foregoing label pulling rollers  21  at linear contact can continuously produce appropriate pull force to a single shrink film sheet which is convoyed by the label feeding rollers and cut by the cutter device. Thus, by the triangle label feeding space  200   c , which is formed by two points produced by the first passive label feeding guide rollers  200   a  and the second passive label feeding guide rollers  200   b  in contact with the foregoing label feeding rollers  20 , create the force to convey the shrink film down, and by the label pulling rollers  21  and passive label pulling guide rollers  210 , the single shrink film sheet continuously conveyed from the foregoing label feeding rollers  20 , the first passive label feeding guide rollers  200   a , and the second passive label feeding guide rollers  200   b , and after being cut by the cutter device is enough to prevent from wrinkles, so that the shrink film with variety of thickness can be successfully convoyed down to the lowest end of the center column  1 , and then pushed by the foregoing second guide pulleys  12  and the second passive guide rollers  120 , the shrink film can completely cover cans or bottles. 
         [0032]    As shown in  FIGS. 1 to 5 and 4 , the cutter trough  1   c  of the foregoing center column  1  is equipped with a cutter device  3 ; the shrink film which has been convoyed by the foregoing label feeding rollers  20  and the passive label feeding guide rollers  200   a  and  200   b  will be cut by the foregoing cutter device  3 , and then continuously pulled by the foregoing label pulling rollers  21  and passive label pulling guide rollers  210 , to form a single shrink film sheet at the second column  1   b  of the foregoing center column  1 , so that the shrink film with a variety of thickness can be successfully conveyed down, and pushed by the foregoing the second guide pulleys  12  and the second passive guide rollers  120 , the shrink film can completely cover cans or bottles. 
         [0033]    In summary, the sleeve labeling machine of this invention is equipped with label feeding rollers  20  and label pulling rollers  21  in the first column  1   a  and in the second column  1   b  of the center column  1  respectively, and a cutter device is set between the foregoing label feeding rollers  20  and label pulling rollers  21 , in order to cut a single shrink film sheet, and the label pulling rollers continue to pull the single shrink film sheet down. Moreover, with the innovative linkage gear module  23  and a support frame  24 , the multi-section boom structure composed of the rotating arms  231 ,  232 ,  233 ,  234  and the gears  235 ,  236 ,  237 ,  238 ,  239  can increase the adjustable distance between the two feeding pulleys  20  and the two pulling pulleys  21 , and in the process of adjusting the distance will not affect the synchronous rotation of the gears, with the best stability and functionality. Hence, this invention can operate matching shrink film with a variety of thickness, in order to prevent each shrink film cut producing the wrinkles hindering conveyance and ensure the sleeve labeling machine enables the shrink film to accurately cover cans or bottles. These are advanced components of this invention. 
       DESCRIPTION OF SYMBOLS 
       [0034]    A center column  1 , the first column  1   a , the second column  1   b , a cutter trough  1   c , a shrink film unfolding sheet  10 , the first guide pulleys  11 , the second guide pulleys  12 , the first passive guide rollers  110 , the second passive guide rollers  120 , a shrink film A, first elevating device  111 , second elevating device  121 , first clamping device  112 , second clamping device  122   
         [0035]    A shrink film synchronous transmission device  2 , label feeding rollers  20 , label pulling rollers  21 , power equipment  22 , transmission belts  220   a ,  220   b ,  221   a ,  221   b , the first passive label feeding guide rollers  200   a , the second passive label feeding guide rollers  200   b , passive label pulling guide rollers  210 , triangle label feeding space  200   c , linkage gear module  23 , first rotating arms  231 , second rotating arms  232 , third rotating arms  233 , fourth rotating arms  234 , first gears  235 , second gears  236 , third gears  237 , fourth gears  238  and fifth gears  239 , support frame  24 , third clamping device  241 , fourth clamping device  242 , cutter device  3 .

Technology Category: 7