Square bottom bag overturning device

Abstract

The utility model relates to the technical field of canvas bag processing equipment, and discloses a square bottom bag turning device which comprises a belt pressing mechanism, the belt pressing mechanism comprises a belt pressing rod capable of ascending and descending, and the belt pressing rod is arranged in a long strip shape and used for pressing and turning a canvas bag with a downward opening. The flaring mechanism is arranged below the belt pressing mechanism, the flaring mechanism comprises a lifting table capable of ascending and descending, two flaring plates arranged under a belt pressing rod are arranged at the upper end of the lifting table, the two flaring plates are vertically-arranged semicircular arc-shaped plates, and notches of the two flaring plates are oppositely arranged. And the two groups of flaring plates are switched between an expansion state and a combination state in the arrangement direction of the belt pressing rods through driving pieces. The canvas bag production line is simple in structure, high in automation degree, capable of achieving unmanned production and improving canvas bag production efficiency, and further has the advantages of being simple in structure and good in practical effect.

Description

Technical Field

[0001] The utility model relates to the technical field of canvas bag processing equipment, in particular to a bag turning device used for processing square bottom canvas bags. Background Art

[0002] The structure of a canvas bag includes a bag body and a handle strap. In order to improve the production efficiency of the canvas bag, an automated production line will be used.

[0003] In the production process of canvas bags, due to the early edge sealing and sewing, the canvas bags need to be turned over in the later production, that is, the inside is turned over and the outer wall is placed, so as to facilitate the subsequent processing of the canvas bags. However, the existing production equipment for canvas bags has a low degree of automation when turning the bag body over, and many of them are turned over manually. Utility Model Content

[0004] Based on this, it is necessary to provide an automated square bottom bag turning device to solve the problem of bag turning in the production and processing of canvas bags.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a square bottom bag turning over device, including a belt pressing mechanism, the belt pressing mechanism includes a belt pressing rod that can be raised and lowered, the belt pressing rod is arranged in a long strip shape, and is used to press down and turn over a canvas bag with an opening facing downward.

[0006] The expanding mechanism is arranged below the belt pressing mechanism, and the expanding mechanism includes a lifting platform that can be raised and lowered, and two groups of expanding plates are arranged directly below the belt pressing rod on the upper end of the lifting platform, and the two groups of expanding plates are vertically arranged semicircular arc plates, and the two groups of expanding plates have recesses arranged opposite to each other, and the two groups of expanding plates are transformed between an expansion state and a merging state along the arrangement direction of the belt pressing rod by a driving member.

[0007] The expansion plate of the expansion mechanism can extend into the canvas belt from bottom to top to expand and fix the bottom of the canvas bag.

[0008] In one embodiment, the belt pressing mechanism further includes a first track, a lifting frame that is lifted up and down by a first motor, the belt pressing rod is fixed at the bottom of the lifting frame, and the two sides of the top of the lifting frame are respectively slidably connected to the first track, and the first motor is fixedly installed at the bottom of the first track, and its output end is transmission-connected to a transmission belt for driving the lifting frame to lift up and down. The belt pressing rod is lifted up and down by the control of the first motor, and the length of the belt pressing rod is smaller than the opening of the canvas bag.

[0009] In one embodiment, the flaring mechanism further includes a second track arranged along the lifting direction of the lifting platform, one end of the lifting platform is slidably mounted on the second track, a second motor is arranged at the bottom of the second track, a second screw rod is transmission-connected to the output end of the second motor, the arrangement direction of the second screw rod is consistent with the lifting direction of the lifting platform, and one end of the lifting platform is rotationally connected to the second screw rod, so that the lifting platform is driven to rise and fall when the second screw rod rotates.

[0010] In one of the embodiments, the expansion plate is slidably mounted on the upper end surface of the lifting platform through a slide rail, and the driving member is mounted on the bottom of the lifting platform, with a compact structure.

[0011] In one of the embodiments, a through slot is provided on the end face of the lifting platform, and both ends of the through slot extend to the end points of the travel after the two sets of expansion plates are opened. The driving member includes a third motor fixed to the bottom of the lifting platform, and the third motor is transmission-connected to the first screw rod. The bottoms of the two sets of expansion plates are provided with a base that passes through the through slot and is rotatably connected to the first screw rod, and when the first screw rod rotates, the two sets of the bases change between an expanded state and a merged state.

[0012] In order to achieve a motor driving two expansion plates to expand or merge synchronously, the threads of the first screw rod are arranged oppositely starting from the half thereof, and the two sets of sleeves and threads that are rotatably connected to the base and the first screw rod are matched.

[0013] Compared with the prior art, the utility model of a square bottom bag turning device has the following advantages:

[0014] The opening of the canvas bag faces downward, and a liftable expansion plate is raised and inserted into the opening of the canvas bag, and expanded and fixed. The pressure rod descends and presses the bottom of the canvas bag to turn the front and back of the canvas bag over. The automation level is high, unmanned production is realized, and the production efficiency of the canvas bag is improved. The utility model also has the characteristics of simple structure and good practical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the medium pressure belt mechanism of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the expansion mechanism of the utility model when viewed from above;

[0019] Figure 4It is a structural schematic diagram of the expansion mechanism of the utility model when viewed from above.

[0020] In the attached figure:

[0021] 1. Belt pressing mechanism; 11. First track; 12. Transmission belt; 13. Lifting frame; 14. First motor; 15. Belt pressing rod; 2. Expanding mechanism; 21. Second motor; 22. Third motor; 221. First screw rod; 23. Second track; 24. Expanding plate; 241. Base; 25. Lifting platform; 251. Through slot; 26. Second screw rod; 27. Limit sensor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] exist Figure 1-4 In the illustrated embodiment, the utility model provides a technical solution: a square bottom bag turning device, comprising: a belt pressing mechanism 1 and an expansion mechanism 2, wherein the expansion mechanism 2 is arranged below the belt pressing mechanism 1.

[0024] like Figure 2 As shown, the belt pressing mechanism 1 includes two vertical first rails 11 fixed on an external frame, a lifting frame 13 that is lifted up and down by a first motor 14, and a belt pressing rod 15 that is fixed at the bottom of the lifting frame 13 and can be lifted up and down. The belt pressing rod 15 is arranged in a long strip shape. The two sides of the top of the lifting frame 13 are respectively connected to the two first rails 11 in a sliding manner. The upper and lower ends of the first rails 11 are provided with photoelectric sensors for limiting the lifting of the lifting frame 13 through the master control. The first motor 14 is fixedly installed at the bottom of the first rail 11, and its output end is connected to the transmission belt 12 for driving the lifting frame 13 to lift. The top of the lifting frame 13 is fixed on the transmission belt 12. The upper and lower ends of the transmission belt 12 are provided with transmission wheels. The first motor 14 drives the transmission wheels to rotate, which can drive the transmission belt 12 to rotate, so as to realize the lifting and lowering of the belt pressing rod 15.

[0025] like Figure 3-Figure 4 As shown, the expanding mechanism 2 includes a lifting platform 25 that can be raised and lowered. Two groups of expanding plates 24 are arranged at the upper end of the lifting platform 25 and are placed directly below the belt pressing rod 15. The two groups of expanding plates 24 are vertically arranged semicircular arc plates, and the two groups of expanding plates 24 have recesses arranged opposite to each other. The two groups of expanding plates 24 are transformed between an expansion state and a merging state along the arrangement direction of the belt pressing rod 15 by a driving member.

[0026] Furthermore, the expanding mechanism 2 also includes a second track 23 arranged along the lifting direction of the lifting platform 25, one end of the lifting platform 25 is slidably installed on the second track 23, and photoelectric sensors are provided at the upper and lower ends of the second track 23, which are used to limit the lifting and lowering of the lifting platform 25 through the master control. A second motor 21 is provided at the bottom of the second track 23, and a second screw rod 26 is transmission-connected to the output end of the second motor 21. The arrangement direction of the second screw rod 26 is consistent with the lifting direction of the lifting platform 25, and one end of the lifting platform 25 is rotatably connected to the second screw rod 26.

[0027] The two expanding plates 24 are slidably installed on the upper end surface of the lifting platform 25 through a slide rail. A through slot 251 is opened on the end surface of the lifting platform 25. Both ends of the through slot 251 extend to the end points of the travel of the two groups of expanding plates 24 after opening. The third motor 22 is fixed at the bottom of the lifting platform 25. The third motor 22 is transmission-connected with the first screw rod 221. The bottoms of the two groups of expanding plates 24 are provided with a base 241 that passes through the through slot 251 and is rotatably connected to the first screw rod 221. When the first screw rod 221 rotates, the two groups of bases 241 change between an expanded state and a merged state.

[0028] Furthermore, the threads of the first screw rod 221 are arranged oppositely starting from the half thereof, and the sleeves and threads of the two sets of bases 241 rotatably connected to the first screw rod 221 are matched.

[0029] The specific working principle of the utility model will be described in detail below: before the device works, the front production equipment clamps the two sides of the bottom of the canvas bag by the clamping claws, and the bag mouth of the canvas bag faces downward, and is transferred between the pressing mechanism 1 and the expanding mechanism 2, and the bag mouth is placed directly above the two expanding plates 24, and the two expanding plates 24 are initially in a merged state;

[0030] The second motor 21 drives the second screw rod 26 to rotate, driving the lifting platform 25 to rise along the second track 23, and the two expanded plates 24 in the combined state are inserted into the canvas bag opening from the bottom. When the top of the expanded plate 24 rises to the top of the bag bottom, the third motor 22 drives the first screw rod 221 to rotate, so that the two expanded plates 24 are expanded synchronously, and the canvas bag is opened and positioned;

[0031] The first motor 14 drives the transmission belt 12 to rotate, and drives the belt pressing rod 15 to descend along the first track 11. The belt pressing rod 15 is pressed toward the bottom of the canvas bag, and the belt pressing rod 15 is pressed into between the two expanding plates 24, turning the canvas bag inside out and placing it on the outer wall. The turned canvas bag is placed between the two expanding plates 24, and the material is taken up by the clamping mechanism and transferred to the next station for processing.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A square bottom bag turning device, characterized in that: include: A belt pressing mechanism (1), the belt pressing mechanism (1) comprising a belt pressing rod (15) which can be lifted up and down, the belt pressing rod (15) being arranged in a long strip shape; The expanding mechanism (2) is arranged below the belt pressing mechanism (1), and comprises a lifting platform (25) which can be raised and lowered. The upper end of the lifting platform (25) is provided with two groups of expanding plates (24) which are arranged directly below the belt pressing rod (15). The two groups of expanding plates (24) are semicircular arc plates arranged vertically, and the notches of the two groups of expanding plates (24) are arranged opposite to each other. The two groups of expanding plates (24) are changed between an expansion state and a merging state along the arrangement direction of the belt pressing rod (15) by a driving member.

2. A square bottom bag turning device according to claim 1, characterized in that: The belt pressing mechanism (1) further comprises a first track (11), a lifting frame (13) which is lifted up and down by a first motor (14), the belt pressing rod (15) is fixed at the bottom of the lifting frame (13), the top two sides of the lifting frame (13) are respectively slidably connected to the first track (11), the first motor (14) is fixedly mounted at the bottom of the first track (11), and the output end of the first motor (14) is transmission-connected to a transmission belt (12) for driving the lifting frame (13) to move up and down.

3. A square bottom bag turning device according to claim 1, characterized in that: The flaring mechanism (2) further comprises a second track (23) arranged along the lifting direction of the lifting platform (25); one end of the lifting platform (25) is slidably mounted on the second track (23); a second motor (21) is provided at the bottom of the second track (23); an output end of the second motor (21) is transmission-connected to a second screw rod (26); the arrangement direction of the second screw rod (26) is consistent with the lifting direction of the lifting platform (25); and one end of the lifting platform (25) is rotationally connected to the second screw rod (26).

4. The square bottom bag turning device according to claim 1, characterized in that: The expansion plate (24) is slidably mounted on the upper end surface of the lifting platform (25) via a slide rail, and the driving member is mounted on the bottom of the lifting platform (25).

5. A square bottom bag turning device according to claim 4, characterized in that: The end surface of the lifting platform (25) is provided with a through slot (251), and both ends of the through slot (251) extend to the end points of the travel after the two groups of expansion plates (24) are opened. The driving member comprises a third motor (22) fixed to the bottom of the lifting platform (25), and the third motor (22) is transmission-connected to a first screw rod (221). The bottoms of the two groups of expansion plates (24) are provided with a base (241) passing through the through slot (251) and rotatably connected to the first screw rod (221), and when the first screw rod (221) rotates, the two groups of the base (241) are switched between an expanded state and a merged state.

6. A square bottom bag turning device according to claim 5, characterized in that: The threads of the first screw rod (221) are arranged oppositely starting from the half of the first screw rod, and the two sets of sleeves rotatably connected to the base (241) and the first screw rod (221) are matched with the threads.

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