Continuous bag-removing machine for open bags of powder in mining

Abstract

This invention discloses a continuous automatic bag-retrieving machine for open-top packaging bags in mining powder, which can be used in conjunction with a bag-loading machine to replace manual operation and improve production efficiency. The continuous bag-retrieving machine includes a roller conveyor belt bag feeding mechanism, a sewing mechanism, a roll bag conveying device, a bag cutting mechanism, and a roller and flipping mechanism. One end of the roll bag conveying device is equipped with a horizontal support rod for placing and outputting open bags, and a roller drive device. Using this continuous bag-retrieving machine, all steps from the initial roll of raw material to an individual open bag before filling can be completed. Secondly, with the help of the roller follower, the folding plate and sewing mechanism achieve automated production. Thirdly, the roller flipping mechanism changes the position and orientation of the open bag to achieve a vertical orientation, facilitating bag retrieval.

Description

Technical Field

[0001] This invention relates to packaging machinery systems, and more particularly to a continuous bag-removing machine for open bags of mineral powder. Background Technology

[0002] As is well known, with the rapid development of ultrafine powder production technology, the subsequent processing of powders, including bagging and finishing processes, must also continuously improve. Initially, bagging was done manually; workers used tools to directly fill the bags with powder, then packaged them for shipment. Because the powder is extremely small, workers were exposed to dusty environments for extended periods during bagging, which had a significant impact on their health. With technological advancements, automatic bagging machines gradually emerged, solving the problem of powder bagging, but not the problem of manual bag placement; workers still had to manually place the bags onto the machine. To address this, bag-removing machines were developed.

[0003] The application of automatic bagging machines in China is already very mature. However, the bag-picking and bag-loading mechanisms for open bags have not kept pace with the development of bagging machines; in fact, they lag behind. Abroad, on the other hand, bag-picking and bag-loading mechanisms are very mature, and a clearly defined production line integrating the bagging process is already in use. From this perspective, there is still a significant difference between domestic and international practices. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a continuous automatic bag-removing machine for open-mouth packaging bags in mining, which can be used in conjunction with a bag-loading machine to replace manual operation and improve production efficiency.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a continuous bag-taking machine for open bags of mining powder, including a roller conveyor belt bag feeding mechanism; a sewing mechanism is provided on one side of the roller conveyor belt bag feeding mechanism; a conveying device for conveying roll bags to the roller conveyor belt bag feeding mechanism is provided on one side of one end of the roller conveyor belt bag feeding mechanism; and a bag cutting mechanism is provided on the conveying device for roll bags.

[0006] The other end of the roller conveyor belt bag feeding mechanism is provided with an open bag transverse conveying area; a bag output roller is provided above one end of the open bag transverse conveying area; a roller and flipping mechanism is provided at one end of the open bag transverse conveying area where the bag output roller is located.

[0007] One end of the conveying device for the rolled bags is equipped with a horizontal support rod and a roller drive device for placing and outputting open bags.

[0008] Specifically, the roller and flipping mechanism includes a base, an upper bag flipping plate, and a frame; a hinge seat is provided on the base; the frame is located on one side of the base; a pressure roller and a drive roller are provided above the frame; a first drive motor for driving the drive roller to rotate is provided on the frame;

[0009] There is a gap between the pressure roller and the drive roller; a guide roller is provided in front of the gap between the pressure roller and the drive roller.

[0010] One end of the upper bag flap is hinged to the hinge seat, and the other end leans against the frame and is located below the drive roller and guide roller.

[0011] A suction cup is provided above the upper bag flap; a baffle is provided on one side of the upper bag flap, and a bag-forming plate is provided on the other side;

[0012] The back of the upper bag flap is provided with a first telescopic device; one end of the first telescopic device is hinged to the upper bag flap, and the other end is hinged to the base.

[0013] Specifically, the bag-cutting mechanism includes a mounting frame;

[0014] The mounting frame is provided with a crossbeam at the top; a fixing plate is provided on one side of the crossbeam, and a second telescopic device is provided on the fixing plate; a sliding plate is provided below the fixing plate.

[0015] Guide rods are provided at both ends of the sliding plate; the guide rods pass through the fixed plate; a bag cutting knife is provided below the sliding plate; the bag cutting knife is connected to the sliding plate through a connecting rod;

[0016] A second pressure roller is provided below the crossbeam; a bag conveying roller is provided below the second pressure roller; the sliding plate is driven to move up and down by a second telescopic device; a second drive motor is provided on the mounting frame to drive the bag conveying roller to rotate.

[0017] Specifically, the conveying device for the rolled bags includes a conveyor frame; a first transition roller is provided on the conveyor frame; an input frame is provided above one end of the conveyor frame; the bag conveying roller is located at the other end of the conveyor frame; a second transition roller and a third transition roller are provided on the input frame; an inclined surface is provided between the first transition roller and the second transition roller; the inclined surface is located below the first transition roller and the second transition roller.

[0018] Specifically, the horizontal support rod and roller drive device includes a horizontal support rod and a drive device for driving the horizontal support rod to rotate; a guide roller is provided in front of the horizontal support rod.

[0019] Preferably, both the first telescopic device and the second telescopic device are pneumatic cylinders, hydraulic cylinders, or electric push rods.

[0020] The beneficial effects of the present invention are: the continuous bag-taking machine for open bags of mining powder described in the present invention can realize continuous bag cutting, sealing, bag transfer and preparation for subsequent processes;

[0021] Therefore, the continuous bag-retrieving machine for open-faced powder materials described in this invention fills the gap in automated production during the separation, gripping, and filling of open-faced bags. It realizes all steps from the initial roll of raw material to the filling of an individual open-faced bag. Secondly, with the assistance of the roller follower, the folding plate and sewing mechanism achieve automated production. Thirdly, the roller flipping mechanism changes the position and orientation of the open-faced bag, achieving a vertical orientation for easy bag retrieval. Attached Figure Description

[0022] Figure 1 This is a perspective view of the continuous bag-removing machine for open-bag mining powder in an embodiment of the present invention;

[0023] Figure 2 This is a perspective view of the roller and flip-plate mechanism in an embodiment of the present invention;

[0024] Figure 3 This is a front view of the roller and flip-plate mechanism in an embodiment of the present invention;

[0025] Figure 4 This is a perspective view of the roller conveyor belt bag feeding mechanism in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the bag-cutting mechanism in an embodiment of the present invention;

[0027] Figure 6 This is a perspective view of the conveying device for the rolled bags and the horizontal support rod and roller drive device in an embodiment of the present invention;

[0028] The diagram shows: 10-Roller conveyor belt bag feeding mechanism, 20-Bag output roller, 30-Roller and flipping mechanism, 40-Sewing mechanism, 50-Bag cutting mechanism, 60-Rolled bag conveying device, 70-Horizontal support rod and roller drive device, 80-Open bag. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and examples.

[0030] like Figures 1 to 6 As shown, the continuous bag-taking machine for open-faced powder of the present invention includes a roller conveyor belt bag feeding mechanism 10; a sewing mechanism 40 is provided on one side of the roller conveyor belt bag feeding mechanism 10; a conveying device 60 for conveying open-faced bags 80 to roll bags on the roller conveyor belt bag feeding mechanism 10 is provided on one side of one end of the roller conveyor belt bag feeding mechanism 10; a bag cutting mechanism 50 is provided on the roll bag conveying device 60.

[0031] The other end of the roller conveyor belt bag feeding mechanism 10 is provided with an open bag transverse conveying area 12; a bag output roller 20 is provided above one end of the open bag transverse conveying area 12; a roller and flipping mechanism 30 is provided at one end of the open bag transverse conveying area 12 where the bag output roller 20 is located.

[0032] One end of the conveying device 60 for rolling bags is provided with a horizontal support rod and a roller drive device 70 for placing and outputting open bags 80.

[0033] During the work process:

[0034] 1. Place the rolled open bag 80 on the horizontal support rod and roller drive device 70, extend one end and feed it into the roll bag conveying device 60; and pull it into the roller below the bag cutting mechanism 50, and place it horizontally and flat.

[0035] 2. Design the required length of the open bag. When the designed length is reached, control the bag cutting mechanism 50 so that the bag cutting mechanism 50 cuts the bag into two sections, with the front section being the designed length.

[0036] 3. The open bag 8 continues to move forward under the action of the drive roller, so that the open bag 8 moves onto the roller conveyor belt bag feeding mechanism 10; and continues to be conveyed on the roller conveyor belt bag feeding mechanism 10, thus achieving lateral and longitudinal positioning.

[0037] Specifically, the bag conveying mechanism consists of a conveyor belt and positioning rollers. The conveyor belt moves the open bag forward, and the positioning rollers press the cut open bag firmly, smooth it out, and prepare it for the sewing operation.

[0038] 4. As one end of the open bag 8 moves forward, it passes through the sewing mechanism 40, at which point the sewing mechanism 40 cuts the thread at one end.

[0039] 5. After the open bag 8 is sealed at the sewing mechanism 40, it is transported to the open bag transverse transport area 12 by the roller conveyor belt bag feeding mechanism 10; then it is transported from the open bag transverse transport area 12 to the roller and flipping mechanism 30. Due to the action of the roller, the open bag changes its direction of movement.

[0040] 6. After the open bag 8 rolls down from the rollers, it moves downward along the tilt angle of the flap. Then, the position of the open bag 8 is adjusted by the rollers and the flap mechanism 30 to facilitate subsequent bag retrieval.

[0041] In summary, the continuous bag-taking machine for open-faced powder bags described in this invention can realize continuous bag cutting, sealing, bag transfer, and preparation for subsequent processes.

[0042] Therefore, the continuous bag-retrieving machine for open-faced powder materials described in this invention fills the gap in automated production during the separation, gripping, and filling of open-faced bags. It realizes all steps from the initial roll of raw material to the filling of an individual open-faced bag. Secondly, with the assistance of the roller follower, the folding plate and sewing mechanism achieve automated production. Thirdly, the roller flipping mechanism changes the position and orientation of the open-faced bag, achieving a vertical orientation for easy bag retrieval.

[0043] Specifically, the roller and flipping mechanism 30 includes a base 31, an upper bag flipping plate 33, and a frame 37; a hinge seat 32 is provided on the base 31; the frame 37 is located on one side of the base 31; a pressure roller 312 and a drive roller 39 are provided above the frame 37; a first drive motor 38 is provided on the frame 37 to drive the drive roller 39 to rotate.

[0044] There is a gap between the pressure roller 312 and the drive roller 39; a guide roller 310 is provided in front of the gap between the pressure roller 312 and the drive roller 39.

[0045] One end of the upper bag flap 33 is hinged to the hinge seat 32, and the other end leans against the frame 37 and is located below the drive roller 39 and the guide roller 310.

[0046] A suction cup 35 is provided above the upper bag flap 33; a baffle is provided on one side of the upper bag flap 33 and a bag-forming plate 34 is provided on the other side.

[0047] The back of the upper bag flap 33 is provided with a first telescopic device 311; one end of the first telescopic device 311 is hinged to the upper bag flap 33, and the other end is hinged to the base 31.

[0048] The roller and flip-plate mechanism 30 is designed to work in conjunction with the bag-loading mechanism, such as... Figure 2 , Figure 3 As shown, its main function is to deliver the bags to the bagging mechanism, supplying them for subsequent actions, including powder bagging and weighing.

[0049] It can be divided into two parts: a roller part and a flip plate part. The roller part mainly feeds the bag into the flip plate, and then the flip plate is pushed upward by the action of the cylinder to stand upright and supply the subsequent mechanism with the action.

[0050] The flipping mechanism consists of the following parts: upper bag flipping plate 33, base 31, hinge seat 32, first telescopic device 311, and bag cylinder. The upper bag flipping plate 33 is also fixed with two vacuum suction cups 35, which are used to suck up the bag when the upper bag cylinder pushes the flipping plate upward, preventing the bag from falling or flying forward.

[0051] The entire mechanism's operation process is as follows:

[0052] After the bag rolls down between the pressure roller 312 and the drive roller 39, it moves downward along the inclined angle of the upper bag flap 33 until it contacts the lower adjusting angle steel 36. At this time, the bag-filling cylinder installed next to the upper bag flap 33 starts to operate. The cylinder retracts, pushing the bag towards the left baffle for positioning.

[0053] The baffle and lower adjusting angle steel 36 have U-shaped grooves, and their installation position on the upper bag flap 33 can be adjusted according to the size of the bag. The reason for adding a bag-forming cylinder is that after the flap is upright, it needs to be gripped by the subsequent bag-feeding mechanism. After the bag-forming action is completed, the suction cup 35 activates, firmly holding the bag so that it adheres to the upper bag flap 33. At this time, the first telescopic device 311 activates, extending outwards and pushing the upper bag flap 33 upwards until it is basically perpendicular to the base 31. When the upper bag flap 33 is flipped up, the opening of the bag is higher than the flap by a certain distance, allowing the subsequent mechanism to grip it. The roller bag-feeding mechanism works on the same principle as the previous transmission roller, but since it does not convey the bag linearly, an additional set of rollers is added as a guide to ensure it is conveyed to the upper bag flap 33. When the first telescopic device 311 retracts to its minimum stroke, the angle between the upper bag flap 33 and the base 31 is 60°, and the angle at which the bag is output between the drive roller 39 and the guide roller 310 is also 60°. Therefore, the two parts of the conveying system can be well coordinated. The roller mechanism consists of three sets of rollers. The main drive roller 39 is connected to the first drive motor 38 via a coupling, which drives the other two sets of rollers to rotate with the drive roller, rolling in the bags on the worktable and conveying them to the flap.

[0054] Bag conveying and cutting mechanism such as Figure 5 It can be divided into two parts: one part is the front conveying device 60 for rolling bags and the bag cutting mechanism 50, and the rear part is the horizontal support rod and roller drive device 70.

[0055] Specifically, the bag cutting mechanism 50 includes a mounting frame 51; a crossbeam is provided on the top of the mounting frame 51; a fixing plate is provided on one side of the crossbeam, and a second telescopic device 58 is provided on the fixing plate; a sliding plate 54 is provided below the fixing plate.

[0056] Guide rods 55 are provided at both ends of the sliding plate 54; the guide rods 55 pass through the fixed plate; a bag cutting knife 57 is provided below the sliding plate 54; the bag cutting knife 57 is connected to the sliding plate 54 through a connecting rod 56.

[0057] A second pressure roller 53 is provided below the crossbeam; a bag conveying roller 52 is provided below the second pressure roller 53; the sliding plate 54 is driven to move up and down by a second telescopic device 58; a second drive motor 59 is provided on the mounting frame 51 to drive the bag conveying roller 52 to rotate.

[0058] The bag conveying device 60 includes a conveyor frame 61; a first transition roller 62 is provided on the conveyor frame 61; an input frame is provided above one end of the conveyor frame 61; the bag conveying roller 52 is located at the other end of the conveyor frame 61; a second transition roller 64 and a third transition roller 65 are provided on the input frame; an inclined surface 63 is provided between the first transition roller 62 and the second transition roller 64; the inclined surface 63 is located below the first transition roller 62 and the second transition roller 64.

[0059] Specifically, the horizontal support rod and roller drive device 70 includes a horizontal support rod and a drive device for driving the horizontal support rod to rotate; a guide roller is provided in front of the horizontal support rod.

[0060] The bag output is accomplished by a horizontal support rod and a roller drive device 70. The horizontal support rod is connected to the drive device via pulleys, and the guide roller rolls with the horizontal support rod. Each time the drive device rotates a certain angle, the horizontal support rod and guide roller rotate a corresponding angle, pulling the rolled bag out a certain distance. This pulled-out distance is used for transmission by the subsequent cutting mechanism. The drive device uses a stepper motor. After the stepper motor rotates a certain angle, the length of the pulled-out bag is much greater than the total length of a single bag. This is because the subsequent bag cutting mechanism also has a roller mechanism used to pull out the length of a bag for cutting. Furthermore, there is roller-guided transmission between the conveying mechanism and the cutting mechanism, so the distance pulled out in one go should be sufficient for subsequent transmission. The horizontal support rod in the bag conveying mechanism is made of stainless steel with long piping. The guide roller is coated with polyurethane to reduce friction with the drive roller.

[0061] The cutting part of the bag cutting mechanism 50 is located at the very front of the mechanism, and its detailed structure is as follows: Figure 5 The front end of the cutting section is a conveying device 60 for roll bags. The front of the conveying device 60 for roll bags is for conveying bags. The front end also has two rollers, the second transition roller 64 and the third transition roller 65, whose main function is to guide the bags as they are sent to the bottom.

[0062] The bag conveying device 60 includes a conveyor frame 61; a first transition roller 62 is provided on the conveyor frame 61; an input frame is provided above one end of the conveyor frame 61; the bag conveying roller 52 is located at the other end of the conveyor frame 61; a second transition roller 64 and a third transition roller 65 are provided on the input frame; an inclined surface 63 is provided between the first transition roller 62 and the second transition roller 64; the inclined surface 63 is located below the first transition roller 62 and the second transition roller 64.

[0063] An inclined surface 63 is provided between the first transition roller 62 and the second transition roller 64. The inclined surface 63 can be welded to the frame or fixed to the frame by other fixing methods. Its main function is to straighten the bag, preparing it for subsequent cutting. There is also a first transition roller 62 in front of the bag. The function of this roller is to prevent the bag from jumping upward when it is pulled out by the roller, thus preventing conveying errors. Although the three rollers in this mechanism have different functions, their working principle is the same. Therefore, the same type of guide roller can be selected, which is the same as the active roller of the conveying mechanism. The cutting part is at the front end of the cutting mechanism. After the cutting mechanism comes out, it is connected to the bag conveying mechanism. The bag is cut using "hot cutting". "Hot cutting" means cutting with a heated blade. The blade is equipped with a heating device, which can heat the blade to cut the bag during operation. The advantage of hot cutting is that the cut bag end face is relatively neat, which plays a good positioning role for smooth folding and sewing later.

[0064] The working principle of the entire cutting mechanism is as follows: After the roller conveyor sends the bag out, the second telescopic device 58 above starts to operate, pushing the sliding plate 54 downward. The sliding plate 54 also has a guide shaft underneath. The connecting rod 56 is connected to the edge-pressing block. When moving downward, because there is a groove under the cutter, the edge-pressing block will hit the conveyor table. A spring is installed on the connecting rod 56. When the edge-pressing block hits the worktable and presses down on the bag, the spring starts to work as the bag continues to move downward, and the cutter continues to cut the bag. After cutting, the second telescopic device 58 moves upward, driving the lower part upward as well, thus completing the entire cutting process. The guide shaft is installed in a linear bearing; the linear bearing is a flanged type for easy installation.

[0065] For ease of control, both the first telescopic device 311 and the second telescopic device 58 are pneumatic cylinders, hydraulic cylinders, or electric push rods.

[0066] Specifically, the roller conveyor bag feeding mechanism 10 is connected to the bag cutting mechanism 50. The roller conveyor bag feeding mechanism 10 can be divided into three parts: the front part is connected to the bag cutting mechanism 50, the middle part is equipped with a sewing and edge-sewing mechanism, and the last part is the part that transports the bags out. The entire mechanism is as follows: Figure 4 .

[0067] The main function of the part connected to the bag cutting mechanism is to transport the cut bag to the sewing mechanism 40 via a roller conveyor belt after the bag is cut; for example... Figure 4 Specifically, after the bag is cut, one side is already on the rollers and conveyor belt. The roller conveyor bag feeding mechanism 10 includes a conveyor belt, with three small rollers on the conveyor belt rollers. The small rollers are mounted on a shaft, which is mounted on a frame via bearing seats and can rotate. The rotation of the shaft is achieved by extending and retracting a cylinder. The three small rollers are mounted on a small plate that mates with the shaft using screws and nuts. The small plate has threaded holes that can be fixed to the shaft, ensuring that the small roller fixing plate does not rotate when the shaft rotates. After the bag is cut, the cylinder extends, and the small rollers, driven by the shaft, contact the belt. The rollers and belt move, feeding the bag into the conveyor belt for transport. Since part of the cut bag is already on the conveyor belt, as long as the small rollers contact the conveyor belt downwards, the two rotate in opposite directions, similar to gear meshing, "squeezing" the bag into the conveyor belt. After entering the conveyor belt, the bag begins to be transported to the subsequent sewing mechanism 40. The conveyor belt of the sewing mechanism 40 is also equipped with many small rollers. These rollers are different from the previous small rollers; they are roller bearing followers mounted on a fixed plate, which is mounted on a shaft and positioned axially by a positioning ring. The followers rotate with the conveyor belt, conveying the bags and preventing inaccurate positioning of the bags during sewing. The sewing mechanism is located next to the frame and mainly consists of a folding plate and a sewing machine. Its working principle is that after the bags are conveyed, they pass through the folding mechanism, and then the sewing machine sews the edges. After sewing, the thread is cut, and subsequent work is carried out.

[0068] The final part of the bag conveying and sewing mechanism is the conveying section, which connects to the subsequent roller flipping mechanism. The sewn bags are flipped onto the conveyor belt, and then the flipping mechanism sends the bags to the subsequent bag loading mechanism for the subsequent bagging work.

Claims

1. A continuous bag-removing machine for open-bag powder mining, characterized in that: It includes a roller conveyor bag feeding mechanism (10); a sewing mechanism (40) is provided on one side of the roller conveyor bag feeding mechanism (10); a conveying device (60) for conveying open bags (80) to roll bags on one side of one end of the roller conveyor bag feeding mechanism (10); and a bag cutting mechanism (50) is provided on the roll bag conveying device (60). The other end of the roller conveyor belt bag feeding mechanism (10) is provided with an open bag transverse conveying area (12); a bag output roller (20) is provided above one end of the open bag transverse conveying area (12); a roller and flipping plate mechanism (30) is provided at one end of the open bag transverse conveying area (12) where the bag output roller (20) is located. One end of the conveying device (60) for the rolled bags is provided with a horizontal support rod and a roller drive device (70) for placing and outputting open bags (80). The roller and flip-plate mechanism (30) includes a base (31), an upper bag flip-plate (33), and a frame (37); a hinge seat (32) is provided on the base (31); the frame (37) is located on one side of the base (31); a pressure roller (312) and a drive roller (39) are provided above the frame (37); a first drive motor (38) is provided on the frame (37) to drive the drive roller (39) to rotate. There is a gap between the pressure roller (312) and the drive roller (39); a guide roller (310) is provided in front of the gap between the pressure roller (312) and the drive roller (39). One end of the upper bag flap (33) is hinged to the hinge seat (32), and the other end leans against the frame (37) and is located below the drive roller (39) and guide roller (310); A suction cup (35) is provided above the upper bag flap (33); a baffle is provided on one side of the upper bag flap (33), and a bag plate (34) is provided on the other side. The back of the upper bag flap (33) is provided with a first telescopic device (311); one end of the first telescopic device (311) is hinged to the upper bag flap (33), and the other end is hinged to the base (31); The bag cutting mechanism (50) includes a mounting frame (51); a crossbeam is provided on the top of the mounting frame (51); a second pressure roller (53) is provided below the crossbeam; and a bag conveying roller (52) is provided below the second pressure roller (53). The bag conveying device (60) includes a conveyor frame (61); a first transition roller (62) is provided on the conveyor frame (61); an input frame is provided above one end of the conveyor frame (61); the bag conveying roller (52) is located at the other end of the conveyor frame (61); a second transition roller (64) and a third transition roller (65) are provided on the input frame; an inclined surface (63) is provided between the first transition roller (62) and the second transition roller (64); the inclined surface (63) is located below the first transition roller (62) and the second transition roller (64).

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