Automatic bag opening device

Abstract

The utility model discloses an automatic bag opening device. The automatic bag opening device comprises a second adsorption assembly used for adsorbing the lower side face of the packaging bag, a third adsorption assembly used for adsorbing the upper side face of the packaging bag, a bag opening mechanism used for driving the third adsorption assembly to move upwards so that the second adsorption assembly and the third adsorption assembly can be separated, and a bag pressing mechanism used for pressing the edge of the lower side face of the packaging bag. When the automatic bag opening device is used, the second adsorption assembly adsorbs the lower side face of a packaging bag, the third adsorption assembly adsorbs the upper side face of the packaging bag, and the bag opening mechanism moves upwards so that the second adsorption assembly and the third adsorption assembly can be separated, and then the packaging bag can be opened; the bag pressing mechanism is used for pressing the middle position of the edge of the lower side face of the packaging bag, and the situation that when the automatic bagging device pushes the product into the packaging bag, the edge of the packaging bag is lifted by the product, and bagging failure is caused is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to packing equipment technical field, specifically relates to an automatic bag opening device. BACKGROUND

[0002] The company has developed an automatic packaging machine with an automatic bag supporting and folding mechanism, and the specific technical details can be found in the Chinese utility model patent application publication document with the publication number CN118047104A. It has the following shortcomings: (1) the whole equipment is relatively large, and occupies a large area; (2) the structure of the concertina bag opening and feeding is too complex, and the volume is also large. Therefore, the company organizes the research and development personnel to research and develop an automatic packaging equipment with a simpler and more compact structure and a smaller area.

[0003] In the process of simplifying the bag opening mechanism, it is found that when the product is pushed into the packaging bag, the lower edge of the packaging bag is easily turned up, resulting in bagging failure. UTILITY MODEL CONTENTS

[0004] In view of the above-mentioned simple mechanism for opening the bag (omitting the clamping assembly for clamping the upper and lower edges of the packaging), when the product is pushed into the packaging bag, the lower edge of the packaging bag is easily turned up, resulting in bagging failure. The technical scheme adopted by the utility model to solve the technical problem is: an automatic bag opening device for opening the packaging bag conveyed by a main conveying device, the automatic bag opening device comprising: a second suction assembly for suctioning the lower side of the packaging bag, a third suction assembly for suctioning the upper side of the packaging bag, a bag opening mechanism for driving the third suction assembly to move upward to separate the second suction assembly and the third suction assembly, and a bag pressing mechanism for pressing the edge of the lower side of the packaging bag.

[0005] The automatic bag opening device described above, the bag pressing mechanism comprises: a connecting seat, a lifting sliding seat, a horizontal sliding seat and a pressing hook, the lifting sliding seat is slidably connected to the connecting seat in the vertical direction, the horizontal sliding seat is slidably connected to the lifting sliding seat in the horizontal direction, the pressing hook is connected to the horizontal sliding seat, a guide block is connected to the connecting seat, a guide groove is provided on the guide block, a guide column is provided on the horizontal sliding seat and can move along the guide groove, and a bag pressing driving mechanism is provided on the connecting seat to drive the lifting sliding seat to move up and down and drive the horizontal sliding seat to move in the horizontal direction.

[0006] The automatic bag opening device described above, the guide groove comprises: a first guide section, a transition guide section and a second guide section that are sequentially connected, and the center lines of the first guide section and the second guide section are staggered with each other.

[0007] The automatic bag opening device comprises a bag pressing driving mechanism, wherein the bag pressing driving mechanism comprises a third rack, a third gear and a bag pressing motor.

[0008] The automatic bag opening device comprises an automatic bag filling device arranged on one side of the main conveying device, wherein the automatic bag filling device comprises a bag filling frame, a pushing block arranged on the bag filling frame and a pushing driving mechanism arranged on the bag filling frame.

[0009] The automatic bag opening device comprises a pushing driving mechanism, wherein the pushing driving mechanism comprises a first belt pulley, a second belt pulley, a belt and a pushing motor.

[0010] The automatic bag opening device comprises a main conveying device, wherein the main conveying device comprises a conveying frame body and a conveying belt connected to the conveying frame body.

[0011] The automatic bag opening device has the advantages that:

[0012] 1. The second adsorption assembly adsorbs the lower side of the packaging bag, the third adsorption assembly adsorbs the upper side of the packaging bag, the bag opening mechanism moves upward to separate the second adsorption assembly and the third adsorption assembly and open the packaging bag, and the bag pressing mechanism presses the middle position of the edge of the lower side of the packaging bag to avoid the edge of the packaging bag from being lifted by the product pushed into the packaging bag by the automatic bag filling device.

[0013] 2. The bag pressing driving mechanism drives the lifting sliding seat to move downward, and at the same time, the horizontal sliding seat moves along the horizontal direction to make the pressing hook move downward and towards the edge of the packaging bag until the pressing hook presses the edge of the packaging bag. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1The automatic bag opening device is applied to the structure schematic view of the packaging equipment.

[0015] Figure 2 The structure schematic view of the automatic bag opening device and the automatic bag filling device in the utility model;

[0016] Figure 3 The structure schematic view of the bag pressing mechanism in the automatic bag opening device in the utility model is shown in figure one.

[0017] Figure 4 The structure schematic view of the bag pressing mechanism in the automatic bag opening device in the utility model is shown in figure two.

[0018] Figure 5 The structure schematic view of the product pushing of the automatic bag filling device in the utility model is shown in figure one.

[0019] Figure 6 The structure schematic view of the automatic bag filling device in the utility model is shown in figure two.

[0020] Figure 7 The structure schematic view of the main conveying device in the utility model is shown in figure three. DETAILED DESCRIPTION

[0021] The embodiment of the utility model will be explained in detail in combination with the drawings.

[0022] As shown in figure one, Figures 1 to 7 The automatic bag opening device 3 is used for opening the packaging bag 800 conveyed by the main conveying device 1, and comprises a second adsorption assembly 31 for adsorbing the lower side of the packaging bag 800, a third adsorption assembly 32 for adsorbing the upper side of the packaging bag 800, a bag opening mechanism 33 for driving the third adsorption assembly 32 to move upwards so as to separate the second adsorption assembly 31 and the third adsorption assembly 32, and a bag pressing mechanism 34 for pressing the edge of the lower side of the packaging bag 800. When the automatic bag opening device is used, the second adsorption assembly 31 adsorbs the lower side of the packaging bag 800, the third adsorption assembly 32 adsorbs the upper side of the packaging bag 800, the bag opening mechanism 33 moves upwards so as to separate the second adsorption assembly 31 and the third adsorption assembly 32 and thus open the packaging bag; the bag pressing mechanism 34 presses the middle position of the edge of the lower side of the packaging bag 800, so as to avoid that the product is pushed into the packaging bag by the automatic bag filling device and the edge of the packaging bag is lifted by the product, thus causing the failure of entering the bag.

[0023] In the embodiment, the bag pressing mechanism 34 comprises a connecting seat 341, a lifting sliding seat 342, a horizontal sliding seat 343 and a pressing hook 344. The lifting sliding seat 342 is slidingly connected to the connecting seat 341 in the vertical direction. The horizontal sliding seat 343 is slidingly connected to the lifting sliding seat 342 in the horizontal direction. The pressing hook 344 is connected to the horizontal sliding seat 343. The connecting seat 341 is connected with a guide block 345. The guide block 345 is provided with a guide groove 3450. The horizontal sliding seat 343 is provided with a guide column 3431 which can move along the guide groove 3450. The connecting seat 341 is provided with a bag pressing driving mechanism 346 which drives the lifting sliding seat 342 to move up and down and drives the horizontal sliding seat 343 to move in the horizontal direction. In use, the bag pressing driving mechanism 346 drives the lifting sliding seat 342 to move down. At the same time, the horizontal sliding seat 343 moves in the horizontal direction, so that the pressing hook 344 moves down and moves towards the edge of the packaging bag. Until the pressing hook 344 presses the edge of the packaging bag. In addition, only one power (the bag pressing driving mechanism 346) is needed to drive the pressing hook 344 to perform two-directional movement. The structure is simple, the cost is low, and the maintenance is easy.

[0024] In the embodiment, the guide groove 3450 comprises a first guide section 34501, a transition guide section 34502 and a second guide section 34503 which are sequentially communicated. The center line of the first guide section 34501 and the center line of the second guide section 34503 are staggered with each other. The distance between the first guide section 34501 and the second guide section 34503 is the distance of the horizontal movement of the pressing hook 344.

[0025] In the embodiment, the bag pressing driving mechanism 346 comprises a third rack 3461, a third gear 3462 and a bag pressing motor 3463. The third rack 3461 is connected to the lifting sliding seat 342. The bag pressing motor 3463 is connected to the connecting seat 341. The third gear 3462 is connected to the rotating shaft of the bag pressing motor 3463. The third gear 3462 is engaged with the third rack 3461.

[0026] In order to put the products into the packaging bag 800, an automatic bagging device 4 for putting the products into the opened packaging bag 800 is arranged on one side of the main conveying device 1. The automatic bagging device 4 comprises a bagging frame 41. The bagging frame 41 is provided with a pushing block 42 for pushing the conveyed products into the opened packaging bag 800. The bagging frame 41 is provided with a pushing driving mechanism 43 for driving the pushing block 42 to act.

[0027] In the embodiment, the pushing driving mechanism 43 comprises a first belt pulley 431, a second belt pulley 432, a belt 433 and a pushing motor 434, the first belt pulley 431 and the second belt pulley 432 are rotationally connected on the bagging frame 41, the belt 433 is arranged between the first belt pulley 431 and the second belt pulley 432, the belt 433 and the pushing block 42 are provided with a linkage block 435, and the pushing motor 434 drives the first belt pulley 431 to rotate and further drives the pushing block 42 to act.

[0028] In the embodiment, the main conveying device 1 comprises a conveying frame body 11 and a conveying belt 12 connected on the conveying frame body 11, the conveying frame body 11 is provided with a negative pressure adsorption device 13 matched with the conveying belt 12, and the conveying belt 12 is provided with a plurality of adsorption holes 121 matched with the negative pressure adsorption device 13 and used to adsorb the packaging bag 800 on the conveying belt 12.

[0029] The above is only used for further illustrating the technical content of the utility model by means of embodiments so as to be easier for the reader to understand, but does not represent that the embodiments of the utility model are limited to this, any technical extension or re-creation made according to the utility model is protected by the utility model. The protection scope of the utility model is subject to the claims.

Claims

1. An automatic bag opening device for opening a packaging bag (800) conveyed by a main conveying device (1), characterized in that, The automatic bag opening device (3) includes: a second adsorption component (31) for adsorbing the lower side of the packaging bag (800), a third adsorption component (32) for adsorbing the upper side of the packaging bag (800), a bag opening mechanism (33) for driving the third adsorption component (32) to move upward so that the second adsorption component (31) and the third adsorption component (32) are separated, and a bag pressing mechanism (34) for pressing the edge of the lower side of the packaging bag (800).

2. An automatic bag opening device according to claim 1, characterized in that The bag pressing mechanism (34) includes: a connecting seat (341), a lifting sliding seat (342), a horizontal sliding seat (343), and a pressing hook (344). The lifting sliding seat (342) is slidably connected to the connecting seat (341) in the vertical direction. The horizontal sliding seat (343) is slidably connected to the lifting sliding seat (342) in the horizontal direction. The pressing hook (344) is connected to the horizontal sliding seat (343). A guide block (345) is connected to the connecting seat (341). A guide groove (3450) is provided on the guide block (345). A guide column (3431) that can move along the guide groove (3450) is provided on the horizontal sliding seat (343). A bag pressing drive mechanism (346) is provided on the connecting seat (341) to drive the lifting sliding seat (342) to move up and down and drive the horizontal sliding seat (343) to move in the horizontal direction.

3. An automatic bag opening device according to claim 2, wherein The guide groove (3450) includes a first guide section (34501), a transition guide section (34502), and a second guide section (34503) that are connected in sequence, wherein the center line of the first guide section (34501) and the center line of the second guide section (34503) are staggered.

4. An automatic bag-opening device according to claim 2, characterized in that, The bag pressing drive mechanism (346) includes: a third rack (3461), a third gear (3462), and a bag pressing motor (3463). The third rack (3461) is connected to the lifting sliding seat (342), the bag pressing motor (3463) is connected to the connecting seat (341), and the third gear (3462) is connected to the rotating shaft of the bag pressing motor (3463). The third gear (3462) and the third rack (3461) mesh with each other.

5. An automatic bag-opening device according to claim 1, characterized in that, The main conveying device (1) is provided with an automatic bagging device (4) on one side for loading products into an opened packaging bag (800). The automatic bagging device (4) includes a bagging frame (41), a pusher block (42) for pushing the conveyed products into the opened packaging bag (800) on the bagging frame (41), and a pusher drive mechanism (43) for driving the pusher block (42) to move on the bagging frame (41).

6. An automatic bag-opening device according to claim 5, characterized in that, The push drive mechanism (43) includes: a first pulley (431), a second pulley (432), a belt (433), and a push motor (434). The first pulley (431) and the second pulley (432) are rotatably connected to the bagging machine frame (41). The belt (433) is wound between the first pulley (431) and the second pulley (432). A linkage block (435) is provided between the belt (433) and the push block (42). The push motor (434) drives the first pulley (431) to rotate, thereby driving the push block (42) to move.

7. An automatic bag-opening device according to claim 1, characterized in that, The main conveying device (1) includes: a conveying frame (11) and a conveyor belt (12) connected to the conveying frame (11). The conveying frame (11) is provided with a negative pressure adsorption device (13) that cooperates with the conveyor belt (12). The conveyor belt (12) is provided with a plurality of adsorption holes (121) that cooperate with the negative pressure adsorption device (13) to adsorb the packaging bag (800) onto the conveyor belt (12).

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