TWI864725B - Strapping machine belt pressing device - Google Patents

Abstract

A strapping device for a strapping machine is provided in the strapping machine. The strapping device comprises a servo and a strapping shaft. The servo has an output shaft, the output shaft is assembled with a connecting shaft, and the connecting shaft is assembled with the strapping shaft, so that the output shaft, the connecting shaft and the strapping shaft can rotate simultaneously. The other side of the belt pressing shaft is integrally provided with an eccentric shaft, and the eccentric shaft sleeve is provided with a belt pressing seat, and the belt pressing seat is hingedly connected to a belt pressing block, whereby the belt pressing block can be raised by the servo to thread the belt or lowered to press the belt, so that this invention has the effect of improving the quality and efficiency of the packaging operation.

Description

Strapping machine's belt pressing device

The present invention relates to a strapping device, in particular to a strapping device for a strapping machine.

According to the common practice, when transporting goods, the user first wraps a strapping belt around the goods, and then uses an electric strapping machine to perform the strapping operation. The electric strapping machine generally includes a main body, which is equipped with a strap cutting device, a strap winding device, a strap pressing device, a pressing plate and a battery. The strap pressing device includes a strap pressing shaft rod, and the two ends of the strap pressing shaft rod are respectively provided with a hand pressing rod and a pressing block, and the pressing block and the pressing plate are arranged opposite to each other. The user first presses down the hand lever to rotate the pressure belt shaft to lift the pressure block, then inserts one end of the strapping belt between the pressure block and the pressure plate, then releases the hand lever so that the pressure block presses against the strapping belt through a spring, and then passes the other end of the strapping belt through the strap cutting device and the strap winding device, and then tightens the strapping belt through the strap winding device, and finally cuts off the excess strapping belt through the strap cutting device to complete the strapping operation.

However, the hand lever must be operated before and after the electric strapping machine is used. This affects not only the smoothness of the strapping operation but also the stability of holding the electric strapping machine, making it more complicated and inconvenient to use. Therefore, after observing the above shortcomings, the inventor of this case believes that the existing electric strapping machine needs to be improved, and thus the present invention is born.

The purpose of the present invention is to provide a strapping device for a strapping machine, which can simply and labor-savingly raise the strapping block to thread the strap or lower the strapping block to press the strap.

To achieve the above-mentioned purpose, the strapping device of the strapping machine provided by the present invention is arranged on a strapping machine, the strapping machine comprises a main body, the main body is provided with a strapping device, a strapping device and a strapping device, the strapping device comprises a pressing plate, the pressing plate is fixedly arranged at the bottom of the main body and extends outward, and its main features are: the main body comprises a gripping part and a mounting part, the gripping part is provided with a button, the mounting part can be equipped with an electric device; the pressing plate The belt device includes a servo and a belt pressing shaft. The servo is electrically connected to the button. The servo has an output shaft. The output shaft is assembled with a connecting shaft. The connecting shaft is assembled with the belt pressing shaft, so that the output shaft, the connecting shaft and the belt pressing shaft can rotate simultaneously. The other side of the belt pressing shaft is integrally provided with an eccentric shaft. The eccentric shaft extends outward. The eccentric shaft sleeve is provided with a belt pressing seat, and the belt pressing seat is hinged with a belt pressing block.

The strapping device of the strapping machine provided by the present invention raises the strapping block to thread the strap or lowers the strapping block to press the strap through the servo, thereby improving the quality and efficiency of the strapping operation.

100: Baling machine

10: Body

11: Grip

111: First button

112: Second button

12: Installation Department

13: Electrical equipment

14: Control module

20: Reeling device

21: Motor

22: Reduction gear set

23: Vortex

24: Reel shaft

25: Turbine

26: Extension

27: Belt threading slot

30: Tape cutting device

31: Knife tube

32: Knife center shaft

33: Extension

34: Belt slot

35: Fixed end

36:Handle

40: Belt pressing device

41: Server

411: Output shaft

42: Pressure plate

421: Axle Seat

422: shaft hole

43: Pressure belt shaft rod

431: Linkage hole

432: Eccentric shaft

44:Connecting parts

441: Linkage slot

45: Pressing belt seat

46: Articulated shaft

47: Pressure belt block

48: Linkage

481: First linkage ring

482: Second linkage ring

483: Connecting rod

484:Piercing

485: Positioning pin

200: strapping tape

201:Items

Figure 1 is a combined three-dimensional diagram of the first preferred embodiment of the present invention.

Figure 2 is a disassembled three-dimensional diagram of the first preferred embodiment of the present invention.

Figure 3 is a schematic diagram of the first preferred embodiment of the present invention, used to show the state of the elevated pressure belt block.

Figure 4 is a schematic diagram of the first preferred embodiment of the present invention, used to show the state of lowering the pressure belt block.

Figure 5 is a schematic diagram of the first preferred embodiment of the present invention, used to show the state of cutting the strapping tape.

Figure 6 is a partially exploded perspective view of the second preferred embodiment of the present invention.

Figure 7 is a schematic diagram of the second preferred embodiment of the present invention, used to show the blade axis in a horizontal position.

Figure 8 is a schematic diagram of the use of the second preferred embodiment of the present invention, used to show the state of the rotating cutter shaft.

Please refer to FIG. 1 and FIG. 2, which are the combined three-dimensional diagram and the exploded three-dimensional diagram of the first preferred embodiment of the present invention, which disclose a strapping device of a strapping machine, which is provided in a strapping machine 100. The strapping machine 100 is preferably a handheld electric strapping machine 100. The strapping machine 100 comprises: a body 10, which is a shell, and the body 10 comprises a A grip portion 11 and a mounting portion 12, the top of the grip portion 11 is provided with a first button 111, the bottom of the grip portion 11 is provided with a second button 112, the mounting portion 12 can be provided with an electric device 13, the electric device 13 is a battery, the first button 111, the second button 112 and the electric device 13 are electrically connected to a control module 14.

A reel device 20 is disposed on the main body 10 and includes a motor 21, a reduction gear set 22, i.e., a planetary gear set, a turbine 23, and a reel shaft 24. The motor 21 is electrically connected to the second button 112 and the control module 14. The motor 21, the reduction gear set 22, and the turbine 23 are interconnected. The reel shaft 24 is sleeved with a turbine 25 and bearings located on both sides of the turbine 25. The turbine 23 is connected to the turbine 25, wherein the reel shaft 24 has an extension 26 extending out of the body 10, and the extension 26 is provided with a pair of belt-passing grooves 27 for the strapping belt 200 to pass through, and when the second button 112 is pressed, the motor 21 links the reduction gear set 22, the turbine 23, the turbine 25 and the reel shaft 24, so that the reel shaft 24 rotates, thereby tightening the strapping belt 200.

The strap cutting device 30 is disposed on the body 10 and includes a hollow blade tube 31 and a blade core shaft 32. The blade tube 31 has an extension 33 extending out of the body 10. The extension 33 is provided with a pair of strapping grooves 34 for the strapping strap 200 to pass through. The blade core shaft 32 is rotatably inserted into the blade tube 31. The fixed end 35 of the blade core shaft 32 is radially fixed with a handle 36. The handle 36 can drive the blade core shaft 32 to rotate to cut the strapping strap 200.

A belt pressing device 40 is disposed on the main body 10 and includes a servo 41, a pressure plate 42 and a belt pressing shaft 43. The servo 41 is a steering gear. The servo 41 is electrically connected to the first button 111 and the control module 14. The servo 41 has a servo motor (not shown) and an output shaft 411. The control module 14 can control the servo The output shaft 411 is connected to a connecting shaft 44 through a screw (not shown) so that the output shaft 411 and the connecting shaft 44 can rotate together. The connecting shaft 44 is a sleeve. The outer peripheral wall of the connecting shaft 44 is concavely provided with a linkage groove 441. The pressure plate 42 is fixed to the bottom of the body 10 and extends outward. The belt pressing belt 42 has a shaft seat 421, the shaft seat 421 has a shaft hole 422, the shaft hole 422 is penetrated by the belt pressing belt shaft rod 43, the belt pressing belt shaft rod 43 has a linkage hole 431, the connecting shaft 44 is arranged in the linkage hole 431, the belt pressing belt shaft rod 43 is penetrated by a stop screw (not shown) and presses against the linkage groove 441, so that the connecting shaft 44 and the belt pressing belt The shaft 43 can rotate at the same time. The other side of the belt pressing shaft 43 is integrally provided with an eccentric shaft 432, and the eccentric shaft 432 extends outward. The eccentric shaft 432 is sleeved with a belt pressing seat 45, and the belt pressing seat 45 is installed on the eccentric shaft 432 through a screw (not shown in the figure), and the belt pressing seat 45 is penetrated with a pivot shaft 46 for pivoting a belt pressing block 47.

In order to further understand the structural features, technical means and expected effects of the present invention, the use of the present invention is described below. It is believed that this will provide a deeper and more specific understanding of the present invention, as described below: Please refer to Figure 3 and Figure 2. When the present invention is used, first, press the first button 111 to start the servo 41 to rotate the output shaft 411 clockwise, and link the connecting shaft 44 and the pressure belt shaft 4 3. The eccentric shaft 432, the belt pressing seat 45 and the belt pressing block 47 are used to lift the belt pressing block 47 so that the belt pressing block 47 is far away from the pressure plate 42, as shown in Figure 4. At this time, a bale belt 200 can be inserted between the belt pressing block 47 and the pressure plate 42, and then the first button 111 is released. The servo 41 will rotate the output shaft 411 counterclockwise to lower the belt pressing block 47 so that the belt pressing block 47 presses against the bale belt 200. Next, after the strapping belt 200 is strapped to an article 201, the strapping belt 200 is inserted into the cutter tube 31 and the reel shaft 24, and the second button 112 is pressed to make the reel shaft 24 reel up the strapping belt to tighten the strapping belt 200. Finally, as shown in FIG. 5, the handle 36 is operated to drive the cutter shaft 32 to rotate, so that the strapping belt 200 can be cut, and the first button 111 is pressed to raise the pressure block 47 to complete the strapping operation. Thus, the invention controls the servo 41 through the first button 111, so as to raise the pressure strip block 47 for strapping or lower the pressure strip block 47 for strapping. At the same time, the first button 111 and the second button 112 of the invention are respectively arranged at the top and the bottom of the grip 11, so that when the user holds the grip 11, he can press the first button 111 with his thumb or press the second button 112 with his index finger without changing the gripping method. Thus, the invention has the effect of improving the quality and efficiency of the packaging operation.

Please refer to FIG. 6, which is a partially exploded three-dimensional diagram of the second preferred embodiment of the present invention. The second preferred embodiment of the present invention is different from the first preferred embodiment described above in that the servo 41 further includes a linkage 48, which has a first linkage ring 481, a second linkage ring 482 and a connecting rod 483. The first linkage ring 481 is sleeved on the connecting shaft 44 and can be fixed by a stop screw (not shown) or a C-shaped buckle (not shown) so that the first linkage ring 481 and the connecting shaft 44 can rotate simultaneously. The second linkage ring 482 is sleeved on the fixed end of the knife core shaft 32. In the present invention, the cross-section of the fixed end 35 of the knife core shaft 32 is a non-circular shape, the second linkage ring 482 has a non-circular through hole 484, and the cross-section of the fixed end 35 corresponds to the shape of the through hole 484, so that the second linkage ring 482 and the knife core shaft 32 can rotate simultaneously, the first linkage ring 481 and the second linkage ring 482 are respectively pivoted at the two ends of the connecting rod 483 with a positioning pin 485, so that the first linkage ring 481 and the second linkage ring 482 can be linked, thereby, the servo 41 can rotate the knife core shaft 32 through the linkage 48, and the handle 36 is not installed. Therefore, when the first button 111 is pressed, the servo 41 will raise the pressure strip block 47 to thread the strap and rotate the knife shaft 32 at the same time. When the first button 111 is released, as shown in FIG. 7 , the servo 41 will lower the pressure strip block 47 so that the pressure strip block 47 presses against the strapping strap 200 and the pressure plate 42 and the knife shaft 32 is placed flat to thread the strapping strap 200 into the knife tube 31. Finally, as shown in FIG. 8 , when the first button 111 is pressed again, the servo 41 will rotate the knife shaft 32 to cut the strapping strap 200 and simultaneously lift the pressure band block 47 to release the pressure band state, thereby completing the strapping operation.

Here, the features of the present invention and its expected effects are described as follows: The strapping device of the strapping machine provided by the present invention raises the strapping block to thread the strap or lowers the strapping block to press the strap through the servo 41, thereby improving the quality and efficiency of the strapping operation.

In summary, this invention has excellent advancement and practicality among similar products. At the same time, after searching domestic and foreign technical data on this type of structure, no similar structure has been found in the literature. Therefore, this invention has the patent requirements and is filed in accordance with the law.

However, the above is only a preferred feasible embodiment of the present invention, so any equivalent structural changes made by applying the present invention specification and the scope of patent application should be included in the patent scope of the present invention.

100: Baling machine

10: Body

11: Grip

111: First button

112: Second button

12: Installation Department

13: Electrical equipment

20: Reeling device

30: Tape cutting device

40: Belt pressing device

Claims (7)

A strapping device for a strapping machine is provided in a strapping machine, the strapping machine comprises a main body, the main body is provided with a strapping device, a strapping device and a strapping device, the strapping device comprises a pressing plate, the pressing plate is fixedly provided at the bottom of the main body and extends outward, and its main features are: The main body comprises a gripping portion and a mounting portion, the gripping portion is provided with a button, and the mounting portion can be provided with an electric device; The belt pressing device includes a servo and a belt pressing shaft. The servo is electrically connected to the button. The servo has an output shaft. The output shaft is assembled with a connecting shaft. The connecting shaft is assembled with the belt pressing shaft, so that the output shaft, the connecting shaft and the belt pressing shaft can rotate simultaneously. The other side of the belt pressing shaft is integrally provided with an eccentric shaft. The eccentric shaft extends outward. The eccentric shaft sleeve is provided with a belt pressing seat, and the belt pressing seat is hinged with a belt pressing block. A strapping device for a strapping machine according to claim 1, wherein when the button is pressed, the servo rotates the output shaft to lift the strapping block so that the strapping block moves away from the pressure plate, and when the button is released, the servo rotates the output shaft to lower the strapping block so that the strapping block presses against a strapping band. A strapping device for a strapping machine according to claim 1, wherein the servo is a servo. According to the strapping device of the strapping machine described in claim 1, the pressure plate has a shaft seat, the shaft seat is penetrated by a shaft hole, and the strapping shaft rod is penetrated by the shaft hole. According to the strapping device of the strapping machine described in claim 1, the strap cutting device includes a knife tube and a knife core shaft rod, the knife core shaft rod is inserted into the knife tube, and the servo further includes a linkage member, which is connected to the knife core shaft rod so that the servo can drive the knife core shaft rod to rotate. According to the strapping device of the strapping machine described in claim 5, the linkage has a first linkage ring, a second linkage ring and a connecting rod, the first linkage ring is sleeved on the connecting shaft, the second linkage ring is sleeved on a fixed end of the knife core shaft, the first linkage ring and the second linkage ring are respectively pivoted on the two ends of the connecting rod, so that the connecting shaft, the first linkage ring, the connecting rod, the second linkage ring and the knife core shaft can be linked. According to the strapping device of the strapping machine described in claim 5, when the button is pressed, the servo will rotate the knife shaft to cut a strapping band and simultaneously lift the strapping block to release the strapping state.

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