Patent Application
20240002092
The present invention relates to a bag clamping and sealing machine.
Taiwanese Utility Model No. M626319 discloses a retaining device for bags, and the retaining device is installed to the inlet of a feeder of a filling station from which particles (for example) are poured into the bag. After the bag is filled with the bag is filled with the desired amount of the particles, the retaining device expands the opening of the bag from a round cross section into a narrow and flat cross section, and the opening is in upright status which is conveniently for a robotic arm to clamp and transfer the bag from the filling station to a sealing station.
The sealing processes use the C-clip and the I-bar disclosed in Taiwanese Utility Model No. M603434, Taiwanese Patent No. 1745004, and Taiwanese Utility Model No. M612595. The mechanical part such as a robotic arm that moves linearly and catches the C-clip and the I-bar, and manipulates the -clip and the I-bar to move toward each other. When the bag opening is narrowed and located within the C-clip, the two legs of the C-clip extend through the two holes of the I-bar. The mechanical part continuously manipulates the -clip and the I-bar to move toward each other until the bag opening is completely closed and sealed. The -clip and the I-bar keep the bag opening to be sealed.
When the users need to access the particles in the bag, the C-clip and the I-bar are then cut by using a pair of scissors to open the bag.
The present invention intends to provide a bag clamping and sealing machine to make the C-clip and the I-bar to successfully tighten the bag.
The present invention relates to a bag clamping and sealing machine and comprises 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. The horizontal Y-axis is perpendicular to the horizontal X-axis on a common horizontal plane. 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 drives a C-clip and an I-bar, and firmly clamps the elongate portion between the C-clip and the I-bar to complete the sealing process of the bag.
The advantages of the present invention are that the bag opening is narrowed to be an elongate portion before it is clamped by the C-clip and the I-bar, and the elongate portion is easily clamped by the C-clip and the I-bar.
The bag is filled, clamped and narrowed at the filing station, and the bag is then moved to the sealing station to be sealed by the C-clip and the I-bar.
The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.
In order to facilitate the description of the central idea of the present invention expressed in the content of the invention, specific embodiments are hereby expressed. Various elements in the embodiments are drawn according to proportions, sizes, deformations or displacements suitable for description, rather than the proportions of actual elements. In the following description, identical and symmetrically arranged elements are denoted by the same reference numerals. Directional terminology is used in the following description, which is expressed according to the view direction and should not be construed as a limitation of the present creation. The terms “first”, “second” . . . are used only to describe elements and should not be construed to indicate or imply relative importance or order.
Referring to
A first clamp device 200 includes 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 are respectively connected to a second top frame 12 and a third top frame 13 which is located corresponding to the second top frame 12. The first top driving device 23 and the second top driving device 24 respectively drive 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 includes 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 are respectively connected to a first bottom frame 16 and a second bottom frame 17 which is located corresponding to the first bottom frame 16. The first bottom driving device 27 and the second bottom driving device 28 respectively drive 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.
The first top driving device 23, the second top driving device 24, the first bottom driving device 27 and the second bottom driving device 28 can be a pneumatic cylinder with guide rods as shown in the drawings.
A narrowing device 30 includes a first board set 31, a second board set 32, a first driving unit 33 and a second driving unit 34. The narrowing device 30 is connected to a movable frame 14 of the base 10 and located between the first clamp device 200 and the second clamp device 250.
The first board set 31 includes a first top board 311 and a second top board 312 which is parallel to the first top board 311. The first top board 311 is located higher than the second top board 312. The first top board 311 includes a first top notch 313, and the second top board 312 includes a second top notch 314 which faces the first top notch 313.
The second board set 32 includes a first bottom board 321 and a second bottom board 322 which is parallel to the first bottom board 321. The first bottom board 321 is located higher than the second bottom board 322. The first bottom board 321 includes a first bottom notch 323, and the second bottom board 322 includes a second bottom notch 324 which faces the first bottom notch 323. The first board set 31 is located above the second board set 32 by a distance “d1”.
The first driving unit 33 and the second driving unit 34 respectively drive the first top board 311 and the second top board 312, and 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” is perpendicular to the horizontal Y-axis “Dy” on a common horizontal plane. 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. Therefore, the first and second top notches 313, 314 are overlapped to the first and second bottom notches 323, 324 along a vertical Z-axis “Dz”.
The first driving unit 33 and the second driving unit 34 can be a magnetic non-rod pneumatic cylinder as shown in the drawings, a pneumatic cylinder with guide rods or the like.
A displacement device 40 includes at least one guide device 41 which is connected to the base 10. The displacement device 40 drives the movable frame 14 of the narrowing device 30 to move back and forth along the horizontal X-axis “Dx”. The displacement device 40 can be three pneumatic cylinders with guide rods as shown or the like. In this embodiment, the displacement device 40 includes three guide devices 41 which are three pneumatic cylinders with guide rods.
As shown in
The bag 1 is filled with material such as particles or powders at the filling station “S1”, an automatic bagging machine stretches the bag opening 2 and the bag body 3 of the bag 1 upward, and mounts the bag opening 2 to the exterior of the feeder 4. Two retainers 6 secure the bag opening 2 to the feeder 4. Air is introduced into the bag 1 to open the bag body 3 and the bag opening 3 wide, and the material such as particles or powders are filled into the bag body 3.
After the bag 1 is filled, the robotic arm (not shown) drives the base 10 from the filling station “S1” to the sealing station “S2”. The first op bar 21 and the second top bar 22 of the first clamp device 200 move away from each other, and the first bottom bar 25 and the second bottom bar 26 of the second clamp device 250 move away from each other, so that the bag opening 2 of the bag 1 is located between the first op bar 21 and the second top bar 22 of the first clamp device 200, and the first bottom bar 25 and the second bottom bar 26 of the second clamp device 250.
The first and second top driving devices 23, 24 respective drive the first op bar 21 and the second top bar 22 to clamp the upper portion of the bag opening 2. The first bottom driving device 27 and the second bottom driving device 28 drive the first bottom bar 25 and the second bottom bar 26 move toward each other to clamp the lower portion of the bag opening 2 of the bag 1. The retainers 6 are moved away from the bag opening 2, so that a portion of the bag opening 2 clamped by the first and second clamp devices 200, 250 is squeezed to be a flattened portion 8.
Then the displacement device 40 is activated to move the narrowing device 30 toward the bag opening 2, while the first top board 311 and the second top board 312, and the first bottom board 321 and the second bottom board 322 are located away from each other, so that the flattened portion 8 enters into the narrowing device 30.
The first and second driving units 33, 34 respectively drive the first top board 311 and the second top board 312 to move toward each other, and the first bottom board 321 and the second bottom board 322 move toward each other. The flattened portion 8 is axially narrowed to be an elongate portion 7 by the first and second top notches 313, 314, and the first and second bottom notches 323, 324.
As shown in
As shown in
While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
