Bag Clamping and Sealing Machine

Abstract

A bag clamping and sealing machine includes a first top bar, a second top bar, a first bottom bar and a second bottom bar movable along a horizontal X-axis. A first top board, a second top board, a first bottom board and a second bottom board movable along a horizontal Y-axis which is perpendicular to the horizontal X-axis. The first top bar and the second top bar, and the first bottom bar and the second bottom bar move toward each other to clamp a bag opening of a bag to be a flattened portion. The first top board and the second top board, and the first bottom board and the second bottom board move toward each other to narrow the flattened portion to be an elongate portion. A robotic arm firmly clamps the elongate portion between a C-clip and an I-bar.

What is claimed is: 
     
         1 . A bag clamping and sealing machine comprising:
 a base ( 10 );   a first clamp device ( 200 ) including a first top bar ( 21 ) and a second top bar ( 22 ), a first top driving device ( 23 ) and a second top driving device ( 24 ), the first top driving device ( 23 ) and the second top driving device ( 24 ) respectively connected to the base ( 10 ) and respectively driving the first top bar ( 21 ) and the second top bar ( 22 ) to move along a horizontal X-axis (Dx) to move toward each other or to move away from each other;   a second clamp device ( 250 ) including a first bottom bar ( 25 ) and a second bottom bar ( 26 ), a first bottom driving device ( 27 ) and a second bottom driving device ( 28 ), the first bottom driving device ( 27 ) and the second bottom driving device ( 28 ) respectively connected to the base ( 10 ) and located below the first clamp device ( 200 ), the first clamp device ( 200 ) located away from the second clamp device ( 250 ), the first bottom driving device ( 27 ) and the second bottom driving device ( 28 ) respectively driving the first bottom bar ( 25 ) and the second bottom bar ( 26 ) to move along the horizontal X-axis (Dx) to move toward each other or to move away from each other;   a narrowing device ( 30 ) connected to the base ( 10 ) and located between the first clamp device ( 200 ) and the second clamp device ( 250 ), the narrowing device ( 30 ) including a first board set ( 31 ), a second board set ( 32 ), a first driving unit ( 33 ) and a second driving unit ( 34 ), the first board set ( 31 ) including a first top board ( 311 ) and a second top board ( 312 ), the second board set ( 32 ) including a first bottom board ( 321 ) and a second bottom board ( 322 ), the first top board ( 311 ) including a first top notch ( 313 ), the second top board ( 312 ) including a second top notch ( 314 ) which faces the first top notch ( 313 ), the first bottom board ( 321 ) including a first bottom notch ( 323 ), the second bottom board ( 322 ) including a second bottom notch ( 324 ) which faces the first bottom notch ( 323 ), the first board set ( 31 ) located above the second board set ( 32 ) by a distance (d 1 ), the first driving unit ( 33 ) and the second driving unit ( 34 ) respectively driving the first top board ( 311 ), the second top board ( 312 ), the first bottom board ( 321 ) and the second bottom board ( 322 ) to move toward each other or away from each other along a horizontal Y-axis (Dy), the horizontal X-axis (Dx) being perpendicular to the horizontal Y-axis (Dy) on a common horizontal plane;   a displacement device ( 40 ) connected to the base ( 10 ) and driving the narrowing device ( 30 ) to move along the horizontal X-axis (Dx) of the base ( 10 );   wherein a bag opening ( 2 ) of a bag ( 1 ) is squeezed to be a flattened portion ( 8 ) when the first top bar ( 21 ), the second top bar ( 22 ), the first bottom bar ( 25 ) and the second bottom bar ( 26 ) move toward each other; the flattened portion ( 8 ) is axially narrowed to be an elongate portion ( 7 ) when the first top notch ( 313 ), the second top notch ( 314 ), the first bottom notch ( 323 ) and the second bottom notch ( 324 ) move toward each other.   
     
     
         2 . The bag clamping and sealing machine as claimed in  claim 1 , wherein the first top board ( 311 ) is located higher than the second top board ( 312 ), the first bottom board ( 321 ) is located higher than the second bottom board ( 322 ), so that the first top board ( 311 ) is overlapped above the second top board ( 312 ) when the first top board ( 311 ) and the second top board ( 312 ) move toward each other, the first bottom board ( 321 ) is overlapped above the second bottom board ( 322 ) when the first bottom board ( 321 ) and the second bottom board ( 322 ) move toward each other. 
     
     
         3 . A bag clamping and sealing machine comprising:
 a base ( 10 );   a first clamp device ( 200 ) including a first top bar ( 21 ) and a second top bar ( 22 ), a first top driving device ( 23 ) and a second top driving device ( 24 ), the first top driving device ( 23 ) and the second top driving device ( 24 ) respectively connected to the base ( 10 ) and respectively driving the first top bar ( 21 ) and the second top bar ( 22 ) to move along a horizontal X-axis (Dx) to move toward each other or to move away from each other;   a narrowing device ( 30 ) connected to the base ( 10 ) and located below the first clamp device ( 200 ), the narrowing device ( 30 ) including a first board set ( 31 ), a second board set ( 32 ), a first driving unit ( 33 ) and a second driving unit ( 34 ), the first board set ( 31 ) including a first top board ( 311 ) and a second top board ( 312 ), the second board set ( 32 ) including a first bottom board ( 321 ) and a second bottom board ( 322 ), the first top board ( 311 ) including a first top notch ( 313 ), the second top board ( 312 ) including a second top notch ( 314 ) which faces the first top notch ( 313 ), the first bottom board ( 321 ) including a first bottom notch ( 323 ), the second bottom board ( 322 ) including a second bottom notch ( 324 ) which faces the first bottom notch ( 323 ), the first board set ( 31 ) located above the second board set ( 32 ) by a distance (d 1 ), the first driving unit ( 33 ) and the second driving unit ( 34 ) respectively driving the first top board ( 311 , the second top board ( 312 ), the first bottom board ( 321 ) and the second bottom board ( 322 ) to move toward each other or away from each other along a horizontal Y-axis (Dy), the horizontal X-axis (Dx) being perpendicular to the horizontal Y-axis (Dy) on a common horizontal plane;   a displacement device ( 40 ) connected to the base ( 10 ) and driving the narrowing device ( 30 ) to move reciprocally along the horizontal X-axis (Dx) of the base ( 10 );   wherein a bag opening ( 2 ) of a bag ( 1 ) is clamped when the first top bar ( 21 ) and the second top bar ( 22 ) move toward each other, a portion of the bag opening ( 2 ) is squeezed when the first top notch ( 313 ) and the second top notch ( 314 ), and the first bottom notch ( 323 ) and the second bottom notch ( 324 ) move toward each other so that the bag opening ( 2 ) between the first board set ( 31 ) and the second board set ( 32 ) is narrowed to be an elongate portion ( 7 ).   
     
     
         4 . The bag clamping and sealing machine as claimed in  claim 3 , wherein the first top board ( 311 ) is located higher than the second top board ( 312 ), the first bottom board ( 321 ) is located lower than the second bottom board ( 322 ), so that the first top board ( 311 ) is overlapped above the second top board ( 312 ) when the first top board ( 311 ) and the second top board ( 312 ) move toward each other, the first bottom board ( 321 ) is overlapped below the second bottom board ( 322 ) when the first bottom board ( 321 ) and the second bottom board ( 322 ) move toward each other, the second top notch ( 314 ) is overlapped to the first bottom notch ( 323 ) along a vertical Z-axis (Dz). 
     
     
         5 . A bag clamping and sealing machine comprising:
 a first top bar ( 21 ) and a second top bar ( 22 ), the first top bar ( 21 ) and the second top bar ( 22 ) being movable toward each other or away from each other along a horizontal X-axis (Dx), when the first top bar ( 21 ) and the second top bar ( 22 ) move toward each other, an upper portion of a bag opening ( 2 ) of a bag ( 1 ) is clamped;   a first bottom bar ( 25 ) and a second bottom bar ( 26 ), the first bottom bar ( 25 ) and the second bottom bar ( 26 ) being movable toward each other or away from each other along a horizontal X-axis (Dx), when the first bottom bar ( 25 ) and the second bottom bar ( 26 ) move toward each other, a lower portion of the bag opening ( 2 ) of the bag ( 1 ) is clamped, a flattened portion ( 8 ) is formed between the upper portion and the lower portion of the bag opening ( 2 ) of the bag ( 1 );   a first top board ( 311 ) and a second top board ( 312 ), the first top board ( 311 ) and the second top board ( 312 ) being movable toward each other or away from each other along a horizontal axis (Dy), the horizontal X-axis (Dx) being perpendicular to the horizontal Y-axis (Dy) on a common horizontal plane;   a first bottom board ( 321 ) and a second bottom board ( 322 ), the first bottom board ( 321 ) and the second bottom board ( 322 ) being movable toward each other or away from each other along a horizontal Y-axis (Dy), and   when the first top board ( 311 ) and the second top board ( 312 ), and the first bottom board ( 321 ) and the second bottom board ( 322 ) move toward each other, the flattened portion ( 8 ) is narrowed to be an elongate portion ( 7 ).