Prefabricated bag feeding and arranging device

Abstract

The utility model discloses a prefabricated bag feeding and arranging device which comprises a bag bin, a bag feeding device and a bag discharging device. Prefabricated bags are placed in the bag bin in a stacked mode, and an opening enabling the front ends of the prefabricated bags to be exposed is formed in the bottom of the bag bin. One end of the separation rail is located at the bottom opening of the bag bin and used for bearing the prefabricated bags and conveying the prefabricated bags forwards one by one; one end of the tidying track is connected with the other end of the separating track so as to receive the prefabricated bags conveyed by the separating track one by one, and the tidying track is used for tidying the prefabricated bags into U shapes and then conveying the U shapes forwards; one end of the positioning bin is connected with the other end of the arrangement rail so as to receive the prefabricated bags conveyed by the arrangement rail one by one; a vacuumizing device is arranged at the bottom of the positioning bin and used for flatly adsorbing the prefabricated bag to the bottom of the positioning bin. According to the utility model, the unsmooth prefabricated bags which are stacked together can be output one by one and then tidied into a flat shape, so that the problems of damage or leakage caused by large fluctuation of the width of a sealing opening and left-right deflection of the sealing opening when the filling equipment grabs the prefabricated bags with unstable positions are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging equipment, and particularly relates to a prefabricated bag loading and arranging device. Background Art

[0002] Prefabricated bags are flexible film packaging preformed on the filling line from roll film. The main forms include three-sided and stand-up bags. In actual production, because stand-up bags are heat-sealed from two sheets of body film and a folded bottom film, there is a thickness difference of approximately one-fold between the opening and the bottom of the bag. This results in the bottom of the bag being very high and the opening being relatively low when the entire bundle is laid flat, making it difficult for the robot to remove the bags from the filling equipment. Furthermore, some bags, such as BOPE / PE structures, are difficult to maintain flatness during processing. Due to the inconsistent shrinkage rates on both sides of the bag film, the film material shrinks during heat sealing. During the bag-making process, both sides of the bag shrink, while the middle of the bag remains largely unaffected and shrinks little. This results in the bag having a concave center and high sides. This is especially true after the entire bundle enters the bag removal chamber of the filling equipment, where the entire bag surface is uneven, affecting the accuracy of the equipment's gripper in grabbing the bag. Normally, when the bag cannot be accurately grasped, a large difference in sealing width will occur during the sealing process after the bag enters the filling equipment. The left and right sealing widths will be very different, which will affect the sealing appearance of the product. In some cases, the sealing width will not meet the standard requirements, affecting the sealing safety. This may result in insufficient packaging strength of the product after filling, resulting in damage or leakage.

[0003] The above problems mainly occur because the thickness difference between the bag body and the bottom of the bag causes the thickness deviation of the whole bag to be magnified. In addition, on some materials with large shrinkage rates, the difference in shrinkage rate between the bag body and the side seals causes the bag itself to bend and warp significantly, making the bag surface of the whole bag more uneven and more difficult to grasp accurately. Utility Model Content

[0004] The purpose of the utility model is to overcome the existing technical defects and provide a prefabricated bag sorting device, which can output the uneven prefabricated bags stacked together one by one and sort them into a flat shape, so that the bag-taking device of the filling equipment can accurately grab the prefabricated bags and obtain a stable heat-sealed seal width and quality, avoiding the problems of large fluctuations in the seal width when the grabbing is unstable and the seal being skewed to the left and right, resulting in breakage or leakage.

[0005] In order to solve the above technical problems, the utility model provides a prefabricated bag arrangement device, comprising:

[0006] A bag bin, wherein the prefabricated bags are stacked and placed inside, and an opening is provided at the bottom of the bag bin to expose the front end of the prefabricated bags;

[0007] A separation track, one end of which is located at the bottom opening of the bag bin and is used to carry the pre-made bags and transport the pre-made bags forward one by one;

[0008] A tidying track, one end of which is connected to the other end of the separation track, so as to receive the prefabricated bags conveyed by the separation track one by one, and to arrange the prefabricated bags into a U-shape and then convey them forward;

[0009] One end of the positioning bin is connected to the other end of the tidying track to receive the prefabricated bags conveyed by the tidying track one by one; a vacuum device is provided at the bottom of the positioning bin to flatly adsorb the prefabricated bags on the bottom of the positioning bin.

[0010] Furthermore, the pre-made bag sorting device also includes a frame, and the bag bin, separation track, sorting track and positioning bin are arranged on the frame in sequence from front to back; the separation track includes a conveyor belt horizontally arranged on the frame and a bag separating device arranged above the conveyor belt, one end of the conveyor belt is located at the bottom of the bag bin and is used to carry pre-made bags, the other end of the conveyor belt is connected to the sorting track, and a gap is provided between the bottom of the front baffle of the bag bin and the conveyor belt for at least one pre-made bag to pass through; the bag separating device is used to block the pre-made bags conveyed forward on the conveyor belt and convey the pre-made bags forward one by one.

[0011] Furthermore, the bag-splitting device includes a first bag-splitting wheel and a second bag-splitting wheel distributed front and back, and a first drive device and a second drive device for driving the first bag-splitting wheel and the second bag-splitting wheel to rotate respectively. The first bag-splitting wheel is used to block the pre-made bags transported forward on the conveyor belt and transport the pre-made bags one by one to the second bag-splitting wheel, and the second bag-splitting wheel is used to transport the pre-made bags one by one to the sorting track.

[0012] Furthermore, the separation track also includes two first baffles provided on the frame and located on both sides of the conveyor belt to limit the premade bags between the two first baffles. The first bag-separating wheel and the second bag-separating wheel are both rotatably provided on the frame through a rotating shaft. The first drive device and the second drive device are provided on the frame and are respectively connected to the first bag-separating wheel and the second bag-separating wheel for transmission.

[0013] Furthermore, the sorting track includes a U-shaped rail provided on the frame and located behind the second bag-splitting wheel, and a pushing device provided in the middle of the U-shaped rail and used to push the pre-made bags forward one by one. A U-shaped groove is provided on the U-shaped rail, and one end of the U-shaped rail is provided with an inlet section docking with the two first baffles, and the other end is provided with an outlet section. The second bag-splitting wheel is used to transport the pre-made bags one by one into the U-shaped groove and is located below the pushing device, so as to bend the pre-made bags into a U shape and then transport them forward.

[0014] Furthermore, the U-shaped rail includes a first half U-shaped rail and a second half U-shaped rail that are symmetrically arranged on the left and right, the U-shaped groove is formed between the first half U-shaped rail and the second half U-shaped rail, and the pushing device is arranged between the first half U-shaped rail and the second half U-shaped rail.

[0015] Furthermore, the pushing device includes a first driving wheel and a second driving wheel distributed front and back, and a third driving device and a fourth driving device respectively used to drive the first driving wheel and the second driving wheel to rotate, the first driving wheel is used to transport the premade bags forward one by one to the second driving wheel, and the second driving wheel is used to transport the premade bags forward one by one into the positioning bin; an introduction strip is suspended on the frame and is located between the first half U-shaped rail and the second half U-shaped rail, the introduction strip is located between the second bag-dividing wheel and the first driving wheel and is arranged adjacent to the first driving wheel, and a gap is formed between the bottom of the introduction strip and the conveyor belt for the premade bags to pass forward.

[0016] Furthermore, the positioning bin includes a bottom plate docked with the end of the conveyor belt, a positioning baffle provided at the end of the bottom plate, and two second baffles provided on the frame and located on both sides of the bottom plate, and the two second baffles are docked with the lead-out section of the U-shaped rail; a vacuum device is provided at the bottom of the bottom plate, and a number of vacuum adsorption holes connected to the vacuum device are provided through the bottom plate, which are used to flatly adsorb the prefabricated bags on the bottom of the positioning bin.

[0017] Furthermore, the positioning bin also includes a U-shaped pressure plate horizontally arranged above the bottom plate and a fifth drive device for driving the pressure plate to move up and down. The pressure plate is arranged along the inner sides of the two second baffles and the positioning baffle to be used for pressing downward on the bag opening and both sides of the prefabricated bag.

[0018] Furthermore, the pre-made bag loading and sorting device further includes a first sensor located behind the second bag separating wheel and a second sensor located above the bottom plate.

[0019] The utility model has the following beneficial effects:

[0020] The bagging and arranging device of the present invention does not directly grab the whole bundle of prefabricated bags by the suction cup or gripper of the filling equipment, but passes through the three combined mechanisms of the separation track, the arranging track and the positioning bin in sequence, and can separate the whole bundle of bags one by one and convey them forward through the separation track. In the case that the prefabricated bags are upright bags, the state in which the bag opening is low and the bag bottom is high in the whole bundle of bags can be converted into a relatively flat state of a single bag, which is then shaped into a U-shape by the arranging track and conveyed forward, that is, the bags that were originally warped and uneven on both sides are turned into a uniform U-shaped state with high sides and low middle, and the bowed state of the U-shape is utilized to make the two sides of the prefabricated bags The warping degree is the same, avoiding the problem of different warping heights and unevenness on both sides of the bag body due to shrinkage. Finally, the prefabricated bag is flatly adsorbed on the bottom of the positioning bin by using a vacuum device, so that some uneven individual bags with high shrinkage rates are arranged into a flat state and accurately fixed in the preset position. At this time, the bag-taking device of the external filling equipment (such as a bag-taking suction cup or a mechanical gripper) can accurately grab the same position of the prefabricated bag, achieving the purpose of positioning and taking bags one by one, and can obtain stable heat-sealing sealing width and quality when sealing after grabbing, filling and filling, avoiding the problem of large fluctuations in sealing width when grabbing is unstable and the problem of damage or leakage caused by skewed seals.

[0021] Additional aspects and advantages of the present invention will be partially given in the following description, which will become apparent from the following description or be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of this application, and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 This is a semi-transparent schematic diagram of the bag bin and the separation track connected in the embodiment;

[0024] Figure 2 This is a top view of the pre-made bag loading and arranging device located at the bag bin in the embodiment;

[0025] Figure 3 A semi-transparent schematic diagram of the track arrangement in the embodiment;

[0026] Figure 4 This is a front view of the track arrangement in the embodiment;

[0027] Figure 5 A side view of the track arrangement in the embodiment;

[0028] Figure 6 This is a semi-transparent schematic diagram of the pre-made bag loading and arranging device located at the positioning bin in the embodiment;

[0029] Figure 7 It is a top view of the positioning bin in the embodiment. DETAILED DESCRIPTION

[0030] In order to more fully understand the technical content of the present invention, the present invention will be further introduced and explained in conjunction with the accompanying drawings and specific embodiments. It should be noted that if there are descriptions such as "first" and "second" in the text, they are used to distinguish different components, etc., and do not represent the order of precedence, nor do they limit the "first" and "second" to different types.

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work shall fall within the scope of protection of the present invention.

[0032] Example

[0033] like Figures 1 to 7 As shown, the pre-made bag loading and sorting device shown in this embodiment includes a frame 100 and a bag bin, a separation track, a sorting track and a positioning bin arranged on the frame 100 from front to back. The pre-made bags are pre-tied and placed in the bag bin. After being separated by the separation track, they enter the sorting track. The sorting track receives the pre-made bags conveyed from the separation track one by one and is used to sort the pre-made bags into a U shape and then convey them forward. The pre-made bags are conveyed to the end of the sorting track and arrive at the positioning bin. A vacuum device 40 is provided at the bottom of the positioning bin for flatly adsorbing the pre-made bags on the bottom of the positioning bin. A bag taking and loading device of an external filling device is provided above the positioning bin. Set 200 (such as a bag-taking suction cup), after the bag-taking device sucks the prefabricated bags in the positioning bin, it moves to the filling position of the filling equipment to fill the contents and heat-seals the prefabricated bags at the predetermined position. This solution mainly solves the problem that the suction cup cannot accurately grab the bags when the uneven bags are placed in the bag bin. By separating and positioning, it can accurately locate the preset position of the bag body for grabbing, achieving the purpose of positioning and taking bags one by one, and when sealing after grabbing, filling and sealing, a stable heat-sealing width and quality can be obtained, avoiding the problem of large fluctuations in the sealing width when the grabbing is unstable and the problem of the seal being skewed left and right and causing damage or leakage.

[0034] Among them, the bag bin is a rectangular bin, the interior of which is used to stack prefabricated bags, that is, the bag bin is a storage place for prefabricated bags, which are replenished manually according to the capacity design and are automatically taken and transported forward by the entire device. The bottom of the bag bin is provided with an opening 13 that exposes the front end of the prefabricated bag, that is, part of the prefabricated bag is supported by the bottom of the bag bin, and the other part is exposed at the opening.

[0035] like Figures 1 to 2As shown, the separation track includes a conveyor belt 20 horizontally arranged on the frame 100 and extending from front to back along the frame, and a bag separating device arranged above the conveyor belt 20. One end of the conveyor belt 20 is located at the bottom of the bag bin and is used to carry pre-made bags. That is, the pre-made bags placed in the bag bin are exposed through the opening at the bottom of the bag bin and contact the conveyor belt 20 at the opening. There is a gap between the front bottom of the bag bin and the conveyor belt 20 for at least one pre-made bag to pass through, so that when the conveyor belt 20 is working and conveying forward, the conveyor belt 20 and the exposed part of the pre-made bag are used to separate the pre-made bags. The friction between the parts will bring at least one pre-made bag at the bottom out of the bag bin and forward along with the conveyor belt 20. When the previous bag has not completely left the exposed part, the conveyor belt 20 will not contact the next bag. Therefore, the length of the partial opening of this bag bin determines the time for the next bag to be exposed; the bag dividing device above the conveyor belt 20 is used to block the pre-made bags conveyed forward on the conveyor belt 20 and convey the pre-made bags forward one by one. The other end of the conveyor belt 20 is connected to the sorting track, and then the pre-made bags conveyed forward are conveyed into the sorting track.

[0036] Preferably, Figures 1 to 2 As shown, the bag-dividing device includes a first bag-dividing wheel 21 and a second bag-dividing wheel 22 distributed front and back, and a first driving device 23 and a second driving device 24 for driving the first bag-dividing wheel 21 and the second bag-dividing wheel 22 to rotate respectively. The first bag-dividing wheel 21 is used to block the pre-made bags transported forward on the conveyor belt 20 and transport the pre-made bags one by one forward to the second bag-dividing wheel 22, that is, after the first bag-dividing wheel 21 blocks the pre-made bags from moving forward, the first bag-dividing wheel 21 rotates to push the single pre-made bags stacked on the top layer forward one by one to the second bag-dividing wheel by utilizing friction force, and then the rotation of the second bag-dividing wheel 22 is utilized to transport the pre-made bags one by one forward to the sorting track.

[0037] Preferably, Figures 1 to 2 As shown, the separation track also includes two first baffles 25 provided on the frame 100 and located on both sides of the conveyor belt 20, so as to limit the premade bags between the two first baffles 25 to avoid problems such as deflection of the premade bags during forward transmission. The first bag-separating wheel 21 and the second bag-separating wheel 22 are both rotatably provided on the frame 100 through a rotating shaft. The first driving device 23 is provided on the frame 100 and is connected to the first bag-separating wheel 21 through a belt 231. The second driving device 24 is provided on the frame 100 and is connected to the second bag-separating wheel 22 through a belt 231.

[0038] In one embodiment, the distance between the two first baffles is not adjustable, that is, the two first baffles are fixed to the frame and are not adjustable. This non-adjustable baffle structure is generally suitable for use with pre-made bags of a single size.

[0039] In another different embodiment, the distance between the two first baffles 25 is adjustable, that is, the two first baffles 25 are slid toward or away from each other on the frame through a sliding mechanism (not shown in the figure), so that prefabricated bags of different widths can be adapted by adjusting the distance between the two first baffles, thereby improving the practicality and applicability of the device; it can be understood that the sliding mechanism can preferably be a ball screw drive mechanism or a cylinder drive mechanism, etc.

[0040] Preferably, Figures 1 to 2 As shown, when the distance between the two first baffles 25 is an adjustable structure, one end of the two first baffles 25 extends to both sides of the bag bin, serving as the two side walls of the bag bin, so as to achieve the purpose of synchronously adjusting the width of the bag bin and the separation track, thereby keeping the limiting width of the pre-made bags on the bag bin and the conveyor belt 20 consistent; it can be understood that when the first baffle serves as the side wall of the bag bin, the bag bin also includes a front baffle 10, a rear baffle 11 and a supporting plate 12, an opening 13 is formed between the supporting plate 12 and the front baffle 10, and a gap is provided between the front baffle and the conveyor belt for at least one pre-made bag to pass through, and the front baffle can be fixed to the inner side of one of the first baffles, or can be rotatably connected to the rear baffle.

[0041] In one embodiment, if Figures 3 to 5 As shown, the sorting track includes a U-shaped rail 30 provided on the frame 100 and located behind the second bag-dividing wheel 22, and a pushing device provided in the middle of the U-shaped rail 30 and used to push the premade bags forward one by one, and the U-shaped rail 30 is located above the conveyor belt 20, and a U-shaped groove 31 is provided on the U-shaped rail 30. One end of the U-shaped rail 30 is provided with an inlet section 32 docking with the two first baffles 25, and the other end is provided with an outlet section 33. Both the inlet section 32 and the outlet section 33 are arcuate structures that smoothly transition from the end surface to the wall surface. The second bag-dividing wheel 22 is used to convey the premade bags one by one into the U-shaped groove 31 and is located below the pushing device, so as to utilize the pressing effect of the U-shaped groove 31 structure and the pushing device to bend the premade bags into a U shape and then convey them forward.

[0042] Preferably, Figures 4 and 5 As shown, the U-shaped rail 30 includes a first half U-shaped rail 301 and a second half U-shaped rail 302 that are symmetrically arranged on the left and right. A U-shaped groove 31 is formed between the first half U-shaped rail 301 and the second half U-shaped rail 302, and the pushing device is arranged between the first half U-shaped rail 301 and the second half U-shaped rail 302.

[0043] Preferably, Figures 3 to 5As shown, the pushing device includes a first driving wheel 34 and a second driving wheel 35 distributed front and back, and a third driving device 36 and a fourth driving device 37 for driving the first driving wheel 34 and the second driving wheel 35 to rotate respectively. The first driving wheel 34 is used to transport the prefabricated bags forward one by one to the second driving wheel 35, and the second driving wheel 35 is used to transport the prefabricated bags forward one by one into the positioning bin; specifically, the first driving wheel 34 and the second driving wheel 35 are both rotatably arranged on the U-shaped rail 30 through a rotating shaft, the third driving device 36 is arranged on the U-shaped rail 30 and is connected to the first driving wheel 34 through a belt 231, the fourth driving device 37 is arranged on the U-shaped rail 30 and is connected to the second driving wheel 35 through a belt 231, and the bottom of the first driving wheel 34 and the second driving wheel 35 are arranged adjacent to the conveyor belt 20. After the prefabricated bag enters the U-shaped rail 30 and is shaped into a U shape, it passes between the two driving wheels and the conveyor belt, and the rotation of the two driving wheels drives the prefabricated bag to be transported forward.

[0044] Preferably, Figures 3 and 4 As shown, an introduction strip 304 is suspended on the frame 100 by a fixed rod 303 and is located between the first half U-shaped rail 301 and the second half U-shaped rail 302. The introduction strip 304 is located between the second bag-dividing wheel 21 and the first driving wheel 34 and is arranged adjacent to the first driving wheel 34, and a gap is formed between the bottom of the introduction strip 304 and the conveyor belt 20 for the pre-made bags to pass forward; here, through the provision of the introduction strip 304, the middle part of the bag pushed from the second bag-dividing wheel 22 does not warp when entering the introduction section 32, and can be captured by the first driving wheel 34 and pushed forward, ensuring that the pre-made bag is shaped into a U shape at the sorting track.

[0045] In one embodiment, if Figures 6 and 7 As shown, the positioning bin includes a bottom plate 41 that is docked with the end of the conveyor belt 20 and is at the same level and height, a positioning baffle 42 provided at the end of the bottom plate 41, and two second baffles 43 provided on the frame 100 and located on both sides of the bottom plate 41. The positioning baffle 42 is used to stop the prefabricated bags conveyed from the sorting track, and align the end of the prefabricated bags with the positioning baffle 42 under the friction provided by the conveyor belt 20. The two second baffles 43 are docked with the lead-out section 33 of the U-shaped rail 30; a vacuum device 40 is provided at the bottom of the bottom plate 41, and a plurality of vacuum adsorption holes 411 connected to the vacuum device 40 are penetrated on the bottom plate 41, which are used to flatly adsorb the prefabricated bags stopped at the rear side of the positioning baffle 42 on the bottom of the positioning bin.

[0046] In one embodiment, the distance between the two second baffles is not adjustable, that is, the two second baffles are fixed to the frame and are not adjustable. This non-adjustable baffle structure is generally suitable for use with pre-made bags of a single size.

[0047] In another different embodiment, the distance between the two second baffles 43 is adjustable, that is, the two second baffles 43 are slid toward or away from each other on the frame through a sliding mechanism (not shown in the figure), so that prefabricated bags of different widths can be adapted by adjusting the distance between the two second baffles, thereby improving the practicality and applicability of the device; it can be understood that the sliding mechanism can preferably be a ball screw drive mechanism or a cylinder drive mechanism, etc.

[0048] Preferably, Figures 6 and 7 As shown, the positioning bin also includes a U-shaped pressure plate 44 horizontally arranged above the bottom plate 41 and a fifth drive device 45 for driving the pressure plate 44 to move up and down. The pressure plate 44 is arranged along the inner sides of the two second baffles 43 and the positioning baffle 42 to press downward on the end of the prefabricated bag near the positioning baffle 42 and on both sides near the two second baffles 43. That is, after the prefabricated bag is stopped by the positioning baffle 42, the pressure plate 44 is driven downward to press on the bottom of the positioning bin, and then the vacuum device 40 at the bottom is used to work to flatten the bag body on the bottom plane of the positioning bin, and then the pressure plate moves upward to leave the prefabricated bag.

[0049] In a specific implementation case, Figures 1 to 7As shown, the pre-made bag sorting device also includes a first sensor 38 arranged above the conveyor belt 20 and behind the second bag-dividing wheel 22, and a second sensor 39 arranged above the bottom plate and inside the positioning baffle 42. It can be understood that a controller 101 is also provided on the frame 100, and the controller 101 is electrically connected to the conveyor belt 20, the first drive device 23, the second drive device 24, the third drive device 36, the fourth drive device 37, the fifth drive device 45, the vacuum device 40, the first sensor 38 and the second sensor 39 respectively; when in use, when the pre-made bags pass through the bag-dividing device on the separation track, the first bag-dividing wheel 21 pushes the pre-made bags stacked on the top layer to the second bag-dividing wheel 22, and the second bag-dividing wheel 22 continues to push the pre-made bags forward. At the same time, when the first sensor 38 senses that the pre-made bags pass through the second bag-dividing wheel 22 forward, the controller 101 controls the first bag-dividing wheel 21 to stop working until the pre-made bags at the second bag-dividing wheel 22 are The bag is completely pushed away from the second bag-dividing wheel 22, and the first bag-dividing wheel 21 continues to work to push the prefabricated bag forward to avoid conflict between the front and rear bags, completing the entire process of dividing the bags one by one and pushing them forward; and when the prefabricated bag reaches the positioning baffle 42, it is sensed by the second sensor 39, and the controller 101 controls the fifth drive device 45 to drive the pressure plate 44 to press on the prefabricated bag to flatten the bag opening and left and right sides of the prefabricated bag to the bottom of the positioning bin, and the vacuum device 40 at the bottom of the bottom plate 41 works to flatten the prefabricated bag on the bottom plane of the positioning bin, and then the pressure plate is driven to leave the prefabricated bag by the fifth drive device 45. At this time, the bag-taking device 200 of the external filling equipment can accurately grab the bag that has been positioned in the positioning bin through a suction cup or a gripper, and transfer the prefabricated bag to the filling and heat sealing position of the filling equipment to complete the filling and sealing process of the bag; wherein, the bag-taking device is located in the middle of the pressure plate, that is, the bag-taking device passes up and down through the U-shaped groove in the middle of the pressure plate to avoid interference between the two.

[0050] In one embodiment, the first driving device, the second driving device, the third driving device and the fourth driving device are all motors, and the fifth driving device is a cylinder.

[0051] In one embodiment, the conveyor is a belt conveyor.

[0052] The above is a detailed introduction to the technical solutions provided by the embodiments of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A prefabricated bag arrangement device, characterized in that: include: A bag bin, wherein the prefabricated bags are stacked and placed inside, and an opening is provided at the bottom of the bag bin to expose the front end of the prefabricated bags; A separation track, one end of which is located at the bottom opening of the bag bin and is used to carry the pre-made bags and transport the pre-made bags forward one by one; A tidying track, one end of which is connected to the other end of the separation track, to receive the prefabricated bags conveyed by the separation track one by one, and to shape the prefabricated bags into a U shape before conveying them forward; One end of the positioning bin is connected to the other end of the tidying track to receive the prefabricated bags conveyed by the tidying track one by one; a vacuum device is provided at the bottom of the positioning bin to flatly adsorb the prefabricated bags on the bottom of the positioning bin.

2. The prefabricated bag arrangement device according to claim 1, characterized in that: The bag storage box further comprises a bag bin, a separation track, a sorting track and a positioning bin which are sequentially arranged on the frame from front to back; the separation track comprises a conveyor belt horizontally arranged on the frame and a bag separating device arranged above the conveyor belt, one end of the conveyor belt is located at the bottom of the bag storage box and is used to carry pre-made bags, the other end of the conveyor belt is connected to the sorting track, and a gap is provided between the bottom of the bag storage box and the conveyor belt for at least one pre-made bag to pass through; the bag separating device is used to block the pre-made bags conveyed forward on the conveyor belt and convey the pre-made bags forward one by one.

3. The prefabricated bag arrangement device according to claim 2, characterized in that: The bag-splitting device includes a first bag-splitting wheel and a second bag-splitting wheel distributed front and back, and a first driving device and a second driving device for driving the first bag-splitting wheel and the second bag-splitting wheel to rotate respectively. The first bag-splitting wheel is used to block the pre-made bags transported forward on the conveyor belt and transport the pre-made bags one by one to the second bag-splitting wheel. The second bag-splitting wheel is used to transport the pre-made bags one by one to the sorting track.

4. The prefabricated bag arrangement device according to claim 3, characterized in that: The separation track also includes two first baffles provided on the frame and located on both sides of the conveyor belt to limit the premade bags between the two first baffles. The first bag-separating wheel and the second bag-separating wheel are both rotatably provided on the frame through a rotating shaft. The first driving device and the second driving device are provided on the frame and are respectively connected to the first bag-separating wheel and the second bag-separating wheel for transmission.

5. The prefabricated bag arrangement device according to claim 4, characterized in that: The sorting track includes a U-shaped rail provided on the frame and located behind the second bag-dividing wheel, and a pushing device provided in the middle of the U-shaped rail and used to push the pre-made bags forward one by one. A U-shaped groove is provided on the U-shaped rail, one end of the U-shaped rail is provided with an introduction section docking with the two first baffles, and the other end is provided with an outlet section. The second bag-dividing wheel is used to convey the pre-made bags one by one into the U-shaped groove and is located below the pushing device to bend the pre-made bags into a U shape and then convey them forward.

6. The prefabricated bag arrangement device according to claim 5, characterized in that: The U-shaped rail includes a first half U-shaped rail and a second half U-shaped rail that are symmetrically arranged on the left and right, the U-shaped groove is formed between the first half U-shaped rail and the second half U-shaped rail, and the pushing device is arranged between the first half U-shaped rail and the second half U-shaped rail.

7. The prefabricated bag arrangement device according to claim 6, characterized in that: The pushing device includes a first driving wheel and a second driving wheel distributed front and back, and a third driving device and a fourth driving device for driving the first driving wheel and the second driving wheel to rotate respectively. The first driving wheel is used to transport the premade bags forward one by one to the second driving wheel, and the second driving wheel is used to transport the premade bags forward one by one into the positioning bin; an introduction strip is suspended on the frame and is located between the first half U-shaped rail and the second half U-shaped rail. The introduction strip is located between the second bag-dividing wheel and the first driving wheel and is arranged adjacent to the first driving wheel, and a gap is formed between the bottom of the introduction strip and the conveyor belt for the premade bags to pass forward.

8. The prefabricated bag arrangement device according to claim 7, characterized in that: The positioning bin includes a bottom plate docked with the end of the conveyor belt, a positioning baffle provided at the end of the bottom plate, and two second baffles provided on the frame and located on both sides of the bottom plate, and the two second baffles are docked with the lead-out section of the U-shaped rail; a vacuum device is provided at the bottom of the bottom plate, and a plurality of vacuum adsorption holes connected to the vacuum device are provided through the bottom plate for adsorbing the prefabricated bags flatly on the bottom of the positioning bin.

9. The prefabricated bag arrangement device according to claim 8, characterized in that: The positioning bin also includes a U-shaped pressure plate horizontally arranged above the bottom plate and a fifth drive device for driving the pressure plate to move up and down. The pressure plate is arranged along the inner sides of the two second baffles and the positioning baffle to be used for pressing downward on the bag opening and both sides of the prefabricated bag.

10. The pre-made bag arrangement device according to claim 9, characterized in that: The device also includes a first sensor located behind the second bag-distributing wheel and a second sensor located above the bottom plate.

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