A bag filling elevator

Abstract

The present invention provides a bag filling elevator, which is composed of a bag filling elevator body. The bag filling elevator body includes a lifting module and a bag filling module. The lifting module includes a frame. A synchronous pulley is arranged at the top of the frame. A belt is sleeved on the synchronous pulley. Lifting silo modules are arranged at equal intervals on the upper bottom surface, the lower bottom surface and two opposite side surfaces of the frame. Both ends of the lifting silo module are fixedly connected to the belt, and the synchronous pulley is connected to a first motor. The present invention arranges the lifting silo modules at equal intervals on four end-to-end connected surfaces of the lifting module, and drives the belt to move through the synchronous pulley, so that each group of pillow bags can be continuously lifted to the bag filling height and the cartoning machine height; and a plurality of bag filling scrapers are arranged side by side at the front end of the bag filling module, and each bag filling scraper is controlled by each corresponding bag filling scraper cylinder, so that any bag-deficient position on the lifting silo module can be filled at the same time.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging engineering, and more specifically, relates to a bag filling elevator. Background Art

[0002] At present, pillow bag products in the pharmaceutical, food and other industries are usually sold in batches by packing in boxes or large bags. In the production process, pillow packaging machines are often used in combination with cartoning machines or large bagging machines, which have a high degree of automation. However, since most pillow packaging machines are multi-row machines, it is inevitable that several unqualified bags will be produced in one or several rows.

[0003] In the prior art, the bag sorting machine is used to remove all the unqualified bags in a row, so that qualified bags and unqualified bags are removed at the same time. This method not only wastes products, but also increases the consumption of packaging materials, which ultimately leads to increased costs. In addition, during the process of boxing or large bagging, there is often a height difference between the bag outlet of the pillow packaging machine and the height of the working position of the boxing machine or large bagging machine. Most manufacturers rely on the bag sorting machine to climb the slope, or the conveyor belt behind the bag sorting machine to climb the slope to make the pillow bag climb to the height of the corresponding working position, but there are the following problems: First, the pillow bag needs to climb to a certain height. At this time, the height difference between the bag outlet of the pillow packaging machine and the boxing machine is large. If the slope of the bag sorting machine is too large, the bag will be deformed; if the slope is reduced, the length of the bag sorting machine will be increased, resulting in an increase in the occupied area. In addition, in the process of the bag sorting machine removing unqualified bags, the qualified bags will be discarded together, which is wasteful. In addition, before boxing or large bagging, the height lifting structure of the pillow bag is complex, difficult to maintain, occupies a large area, and the on-site layout is inflexible.

[0004] Therefore, there is an urgent need in the prior art for a technical solution that can replenish bags only at the missing bag positions during the rear-end conveying process when the front-end bag sorter only removes unqualified bags, and at the same time, has a height lifting function to lift the pillow bags from the outlet height of the pillow packaging machine to the working position height of the cartoning machine or the large bag filling machine without the need for the bag sorter to climb. Summary of the invention

[0005] In view of the above-mentioned deficiencies of the prior art, the present invention provides a bag replenishing elevator which can replenish bags at the bag-missing positions on the conveyor belt and also has a height lifting function to lift the height of the pillow-type packaging bags to the height of a cartoning machine or a large bagging machine.

[0006] To achieve the above object, the present invention is implemented through the following technical solutions:

[0007] A bag filling elevator is composed of a bag filling elevator body, the bag filling elevator body includes a lifting module and a bag filling module, the lifting module includes a frame, a lifting synchronous pulley is arranged at the top of the frame, a belt is sleeved on the synchronous pulley, lifting silo modules are arranged at equal intervals on the upper bottom surface, the lower bottom surface and two opposite side surfaces of the frame, both ends of the lifting silo module are fixedly connected to the belt, and the synchronous pulley is connected to a first motor.

[0008] A conveyor belt having one end connected to a bag sorting machine is horizontally arranged on one side of the frame corresponding to the lowest lifting bin module on the side, the conveyor belt is connected to a second motor, a transition bin is fixedly arranged on one side of the conveyor belt, and a lifting bin module corresponding to the height of the transition bin and the conveyor belt is close to the transition bin, and a lower pusher is arranged on the other side of the conveyor belt at a position opposite to the transition bin, a lower pusher is arranged at the front end of the lower pusher for pushing the pillow bags in the conveyor belt into the lifting bin module, a lower pusher is connected to the rear end of the lower pusher with a lower pusher cylinder, an upper pusher for pushing the pillow bags into the cartoning machine is fixedly arranged on the upper side of the frame, and a lower pusher guide shaft penetrating the lower pusher is fixedly connected to the rear end of the lower pusher.

[0009] The bag filling module includes a chassis arranged on one side of the frame between the upper push and the lower push, a slideway for horizontally moving the bag filling module is arranged under the chassis, the chassis includes a pre-storage side and a rejection side, the pre-storage side is close to the frame, and the rejection side is far away from the frame, a driving wheel and a driven wheel are arranged on the chassis, the driving wheel is connected to a third motor, the driving wheel and the driven wheel are sleeved with a synchronous belt that moves synchronously with the rotation of the driving wheel and the driven wheel, an outer baffle cam is arranged on the outer edge of the chassis, and an annular guide rail is also arranged on the chassis, the annular guide rail includes a straight rail and an arc rail connected to both ends of the straight rail, a slider that can slide along the straight rail and the arc rail is arranged on the annular guide rail, each of the sliders is floatingly connected with a joint bearing, and the joint bearing is fixedly connected to the synchronous belt.

[0010] A bag filling silo module is carried on each of the sliding blocks, and the bag filling silo module includes a base, a silo arranged on the base, an outer baffle arranged on the outside of the silo and an inner baffle arranged on the inside of the silo. A follower guide shaft is arranged at the bottom of the silo, a sleeve is arranged outside the follower guide shaft, the sleeve is fixedly connected to the lower end of the outer baffle, and a follower wheel capable of rolling on the outer baffle cam is fixedly connected to the side wall of the sleeve. The bag filling silo module and the lifting silo module located at the bag filling height on the side of the frame are on the same horizontal plane, and a bag filling pushing cylinder is arranged at the bag filling height in the frame, and a bag filling pushing scraper is arranged at the front end of the bag filling cylinder.

[0011] A bag filling module is arranged above the chassis, and the front end of the bag filling module faces the pre-storage side of the chassis, and a bag filling cylinder is arranged at the rear end of the bag filling module. A bag filling scraper for scraping the pillow bags on the bag filling silo module into the corresponding bag-missing positions on the lifting silo module is arranged at the front end of the bag filling module, and a bag filling scraper cylinder is arranged above the bag filling scraper. A bag filling guide shaft is also fixedly arranged at the front end of the bag filling scraper, and a bag filling connecting rod is fixedly arranged on the frame, and the bag filling guide shaft passes through the bag filling connecting rod.

[0012] A rejection module is also arranged above the chassis, with the front end of the rejection module facing the rejection side of the chassis, the rear end of the rejection module being provided with a rejection cylinder, the front end of the rejection module being provided with a rejection scraper, the rear end of the rejection scraper being fixedly provided with a rejection guide shaft, a rejection connecting rod being fixedly provided on the frame, and the rejection guide shaft passing through the rejection connecting rod.

[0013] The conveyor belt, the transition silo, and the front end of the lifting silo module closely attached to the transition silo are all aligned.

[0014] The driving wheel and the driven wheel are both synchronous pulleys, and the synchronous belt is a toothed belt.

[0015] The driving wheel is also provided with a tensioning mechanism.

[0016] The outer baffle cam is composed of a straight portion and an arc portion connected to the straight portion at both ends. The arc portion is higher than the straight portion. A protective cover is arranged on the chassis above the arc portion.

[0017] The beneficial effects of the present invention compared with the prior art are:

[0018] 1. The lifting module has four ends connected to each other. The lifting silo modules are evenly spaced. The synchronous pulley drives the belt to move, which can continuously lift each group of pillow bags to the bag filling height and the cartoning machine height.

[0019] 2. Multiple bag filling scrapers are arranged side by side at the front end of the bag filling module. Each bag filling scraper is controlled by each corresponding bag filling scraper cylinder, and can fill bags one by one at the bag missing position on the lifting silo module;

[0020] 3. The inner and outer baffles, follower wheels and protective covers of the bag filling silo module can keep the pillow bags stable and prevent them from being thrown out during the process of moving and feeding them into the silo;

[0021] 4. The lifting module acts as a buffer area, and the air pressure generated is lower than that of the pillow packaging machine and the bag unscrambler, but higher than that of the cartoning machine or the big bag filling machine, so that the wind can only blow from the bag unscrambler area to the cartoning machine or the big bag filling machine area, that is, the air will not flow back from the outer packaging area to the inner packaging area, avoiding contamination of the products to be packaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the front view of the present invention.

[0023] Figure 2 It is a structural diagram of the lifting module.

[0024] Figure 3 It is a structural diagram of the bag filling module.

[0025] Figure 4 It is a schematic diagram of the connection between the conveyor belt, the bag sorting machine and the pillow packaging machine.

[0026] Figure 5 This is the front view of the silo.

[0027] Figure 6 It is a side view of the silo.

[0028] Figure 7 It is a schematic diagram of the operation of the lifting module to lift the pillow bag.

[0029] Figure 8 It is a top view of the pillow bag being transferred from the conveyor belt to the lifting silo module.

[0030] Fig. 9 It is the left view of the bag filling operation status.

[0031] Fig.10 It is a top view of the bag filling operation status.

[0032] Fig.11 It is a top view of the moving body of the bag filling module.

[0033] Fig.12 It is a structural diagram of the bag filling module.

[0034] Fig.13 It is a structural diagram of the bag filling silo module.

[0035] Fig.14It is a schematic diagram before the bag filling scraper moves.

[0036] Fig.15 It is a schematic diagram after the bag filling scraper is in action.

[0037] Fig.16 It is a schematic diagram before the outer baffle is lifted.

[0038] Fig.17 It is a schematic diagram after the outer baffle is lifted.

[0039] Fig.18 It is a schematic diagram of the outer baffle of the bag filling silo module moving along with the movement of the slider on the annular guide rail.

[0040] Figure numerals: 1-lifting module, 2-bag filling module, 3-lifting silo module, 4-upper push, 5-conveyor belt, 6-lower push, 7-bag filling silo module, 8-driven wheel, 9-rejection module, 10-bag filling module, 11-driving wheel, 12-slide, 13-annular guide rail, 14-outer baffle cam, 15-rejection cylinder, 16-transition silo, 17-lower push cylinder, 18-lower push scraper, 19-lower push guide shaft, 20-bag filling push cylinder, 21-bag filling guide shaft, 22-bag filling push scraper, 23-tensioning mechanism, 24-rejection scraper, 25-slider, 26-bag filling scraper, 27-bag filling scraper cylinder, 28-bag filling cylinder, 29-spherical bearing, 30-outer baffle, 31-follow-up guide shaft, 32 follower wheel, 33-base, 34-inner baffle, 35-bin, 36-guard, 37-belt, 38-lifting synchronous pulley, 39-first motor, 40-second motor, 41-frame, 42-third motor, 43-chassis, 44-synchronous belt, 45-bag filling connecting rod, 46-sleeve, 47-rejection guide shaft, 48-rejection connecting rod. DETAILED DESCRIPTION

[0041] like Figure 1-18 The bag filling elevator shown is composed of a bag filling elevator body, which includes a lifting module 1 and a bag filling module 2. The lifting module 1 includes a frame 41. A lifting synchronous pulley 38 is arranged at the top of the frame 41, and a belt 37 is sleeved on the lifting synchronous pulley 38. Lifting silo modules 3 are equidistantly arranged on the upper bottom surface, the lower bottom surface and two opposite side surfaces of the frame 41. Both ends of the lifting silo module 3 are fixedly connected to the belt 37, and the lifting synchronous pulley 38 is connected to a first motor 39.

[0042] like Figure 2As shown, a conveyor belt 5 with one end connected to the bag sorting machine is horizontally arranged at a position corresponding to the lowest lifting bin module 3 on the side of the frame 41, and the conveyor belt 5 is connected to a second motor 40. A transition bin 16 is fixedly arranged on one side of the conveyor belt 5. The lifting bin module 3 corresponding to the height of the transition bin 16 and the conveyor belt 5 is closely attached to the transition bin 16. A lower pusher 6 is arranged at a position opposite to the transition bin 16 on the other side of the conveyor belt 5. Figure 8 As shown, the front end of the lower pusher 6 is provided with a lower pusher scraper 18 for pushing the pillow bags in the conveyor belt 5 to the lifting silo module 3, and the rear end of the lower pusher scraper 18 is connected to the lower pusher cylinder 17. The upper pusher 4 for pushing the pillow bags to the cartoning preparation module in the cartoning machine is fixedly provided above the side of the frame 41, and the rear end of the lower pusher scraper 18 is fixedly connected to the lower pusher guide shaft 19 that passes through the lower pusher 6. Figure 8 As shown, in this embodiment, each group of lifting silo modules 3 has 8 independent silos 35, and the shape and structure of each silo 35 are as follows: Figure 5-6 As shown, there are five loading troughs. When the silo 35 is loaded, the pillow bag is fed into the loading trough. The conveyor belt 5, the transition silo 16, and the front end of the lifting silo module 3 closely attached to the transition silo 16 are all aligned. In this embodiment, as shown in FIG. Figure 8 As shown, the conveyor belt 5, the transition bin 16 and the left end of this group of lifting bin modules 3 are all aligned.

[0043] like Figure 3 As shown, the bag filling module 2 includes a chassis 43 arranged on one side of the frame 41 and between the upper push 4 and the lower push 6. A slideway 12 for horizontally moving the bag filling module 2 is arranged below the chassis 43. The chassis 43 can be pushed toward the lifting module 1 along the slideway 12. The chassis 43 includes a pre-storage side and a rejection side. The pre-storage side is close to the frame 41, and the rejection side is far away from the frame 41. A driving wheel 11 and a driven wheel 8 are arranged on the chassis 43. The driving wheel 11 is connected to a third motor 42. The driving wheel 11 and the driven wheel 8 are sleeved with a driving wheel 11 and a driven wheel 8. A synchronous belt 44 moves synchronously with the rotation of the wheel 11 and the driven wheel 8, an outer baffle cam 14 is arranged on the outer edge of the chassis 43, and an annular guide rail 13 is also arranged on the chassis 43. The annular guide rail 13 includes a straight rail and an arc rail connected to both ends of the straight rail. A slider 25 that can slide along the straight rail and the arc rail is arranged on the annular guide rail 13. Each slider 25 is floatingly connected with a joint bearing 29, and each joint bearing 29 is fixedly connected to the synchronous belt 44. In this embodiment, the tube joint bearing 29 is fixedly connected to the synchronous belt 44 through a false tooth.

[0044] like Fig.10 As shown, each slider 25 is equipped with a bag filling silo module 7, such as Fig.13As shown, the bag filling silo module 7 includes a base 33, a silo 35 arranged on the base 33, an outer baffle 30 arranged on the outside of the silo 35 and an inner baffle 34 arranged on the inside of the silo 35. A follower guide shaft 31 is arranged at the bottom of the silo 35. A sleeve 46 is arranged on the outer sleeve of the follower guide shaft 31. The sleeve 46 is fixedly connected to the lower end of the outer baffle 30. A follower wheel 32 capable of rolling on the outer baffle cam 14 is fixedly connected to the side wall of the sleeve 46. The bag filling silo module 7 and the lifting silo module 3 located at the bag filling height on the side of the frame 41 are on the same horizontal plane. A bag filling pushing cylinder 20 is arranged at the bag filling height in the frame 41, and a bag filling pushing scraper 22 is arranged at the front end of the bag filling pushing cylinder 20.

[0045] like Fig.12 As shown, a bag filling module 10 is arranged above the chassis 43, and the front end of the bag filling module 10 faces the pre-storage side of the chassis 43, and a bag filling cylinder 28 is arranged at the rear end of the bag filling module 10. A bag filling scraper 26 for scraping the pillow bags on the bag filling silo module 7 into the corresponding bag-missing positions on the lifting silo module 3 is arranged at the front end of the bag filling module 10, and a bag filling scraper cylinder 27 is arranged above the bag filling scraper 26. A bag filling guide shaft 21 is also fixedly arranged at the front end of the bag filling scraper 26, and a bag filling connecting rod 45 is fixedly arranged on the frame 41, and the bag filling guide shaft 21 passes through the bag filling connecting rod 45.

[0046] A reject module 9 is also arranged above the chassis 43, with the front end of the reject module 9 facing the reject side of the chassis 43, the rear end of the reject module 9 is arranged with a reject cylinder 15, the front end of the reject module 9 is arranged with a reject scraper 24, the rear end of the reject scraper 24 is fixedly provided with a reject guide shaft 47, and a reject connecting rod 48 is fixedly provided on the frame 41, and the reject guide shaft 47 passes through the reject connecting rod 48.

[0047] The driving wheel 11 and the driven wheel 8 are both synchronous pulleys, and the synchronous belt 44 is a toothed belt.

[0048] A tensioning mechanism 23 is also provided on the driven wheel 8. Figure 10-11 As shown, the tensioning mechanism 23 includes a driven bearing seat and a push rod arranged on the right side of the bearing seat. The central axis of the driven wheel 8 is placed in the bearing of the bearing seat. When the driven wheel 8 rotates, the central axis and the bearing make a circular motion in the bearing seat. When the synchronous belt 44 needs to be tensioned, the push rod is pushed to the left, and the driven wheel 8 moves slightly to the left, thereby tensioning the synchronous belt 44.

[0049] The outer baffle cam 14 is composed of a straight portion and an arc portion connected to the straight portion at the head and tail. The arc portion is higher than the straight portion. The chassis 43 is provided with a Fig.18 The shield 36 shown. In this embodiment, the shield 36 is semicircular and just covers the arc portion of the outer baffle cam 14 and the arc track above the annular guide rail 13.

[0050] The working mode of the present invention is as follows:

[0051] like Figure 4 As shown, the small pillow bags for food or medicine etc. outputted from the bag outlet of the pillow packaging machine are transported to the corresponding silo on the conveyor belt 5 through the bag sorter. The conveyor belt 5, driven by the second motor 40, transports the silo containing the pillow bags to the corresponding position of the lifting bag filling machine. Figure 2 and Figure 8 As shown, under the action of the lower push cylinder 17, the lower push guide shaft 19 pushes the lower push scraper 18 forward. The two wings of the lower push 6 each have a linear bearing that allows the lower push guide shaft 19 to just pass through. The two lower push guide shafts 19 pass through the two linear bearings, one on the left and one on the right, respectively, and move forward along the aperture direction, so that the lower push guide shaft 19 can maintain linear motion during movement, and the lower push scraper 18 will not push the pillow bag to other directions. The pillow bag on the conveyor belt 5 is scraped into the lifting silo module 3 by the lower push scraper 18 through the transition silo 16. The first motor 39 drives the lifting synchronous pulley 38 to rotate, driving the belt 37 along Figure 7 The counterclockwise transmission indicated by the black arrow in the middle lifts the group of lifting silo modules 3 to the bag filling height, and the next group of lifting silo modules 3 also moves to the position corresponding to the previous group and the conveyor belt 5 at the same time.

[0052] In the production process of pillow packaging machines, unqualified bags in appearance or weight are inevitable. After the system detects and locates the unqualified bags, they will be removed at the bag sorting machine station. In this way, when conveying to the rear stage, there will be empty spaces for the removed bags on the conveyor belt 5. In order to ensure the accuracy of pillow bag counting when packing boxes or large bags in the rear stage, bags need to be replenished to fill the empty spaces for the removed bags.

[0053] After the pillow bag is lifted to the bag filling height, the third motor 42 drives the driving wheel 11 to rotate, driving the synchronous belt 44 to rotate. A short shaft is fixedly arranged on each slider 25 on the annular guide rail 13, and a joint bearing 29 is sleeved on the short shaft. In this embodiment, the joint bearing 29 adopts a pair of end rod tube joint bearings, that is, each slider 25 is connected with two end rod tube joint bearings, one of which has an end rod of a hollow structure with internal threads, and the other end rod of a hollow structure with external threads, which can be rotated and inserted into the hollow structure with internal threads. The shaft sleeves of the two end rod tube joint bearings, one is sleeved in the short shaft on the synchronous belt 44 on the slider 25, and the other is sleeved on the connecting shaft fixedly connected to the outside of the synchronous belt 44, and the connecting shaft is connected to the outer surface of the synchronous belt 44 by false teeth. The false teeth are mechanical stops installed on the outer surface of the toothed belt, which are used to fix the jigs connected to the toothed belt, so that the jigs are positioned and operated synchronously with the synchronous belt. False teeth are installed on the outer surface of the synchronous belt 44, and the above-mentioned connecting shaft is inserted into the hole on the false teeth to realize the fixed connection between the joint bearing 29 and the synchronous belt 44. When the synchronous belt 44 rotates around the driving wheel 11 and the driven wheel 8, the joint bearing 29 pulls the slider 25 to move. Since the joint bearing is a spherical sliding bearing, its sliding contact surface is an inner sphere and an outer sphere, and it can rotate and swing at any angle during movement, that is, the synchronous belt 44 and the slider 25 are floatingly connected. When the tensioning mechanism 23 tightens the synchronous belt 44, the slider 25 will not be pushed away. In this embodiment, there are 8 sliders 25 connected end to end on the straight rails on both sides of the annular guide rail 13, and each slider 25 is equipped with a silo 35. The 8 silos 35 together constitute the bag filling silo module 7.

[0054] Before bag filling, a certain number of pillow bags need to be pre-stored in the silo 35 on the slider 25. When the lifting silo module 3 previously fully loaded with pillow bags rises to the bag filling height, the bag filling pushing cylinder 20 pushes the pillow bags on the lifting silo module 3 into the bag filling silo module 7 by the bag filling pushing scraper 22, thus completing the pillow bag pre-storage process of the bag filling module 2.

[0055] After the pillow bags are pre-stored in the bag filling module, the lifting module 1 continues to operate. When unqualified bags appear in the front section and are rejected by the bag sorting machine, there will be empty spaces in the pillow bags of this group of lifting silo modules 3, that is, there will be a bag shortage phenomenon at a certain silo position or several silo positions. When this group of bags is transported upward to the bag filling height position, the bag filling module 10 is activated, and the system extends the corresponding bag filling scraper cylinder 27 according to the bag shortage position, and the bag filling scraper 26 is lowered to the back of the pillow bag, that is, Fig.14 The middle position drops to Fig.15 The bag filling cylinder 28 is then actuated to scrape the corresponding bag on the bag filling silo module 7 into the lifting silo module 3, so that the lifting silo module 3 reaches a full silo state.

[0056] Each time pillow bags are pre-stored in the bag filling module, the bag filling silo module 7 corresponding to the lifting silo module 3 is in a state of full-load pillow bags, which can cover any bag-missing position on the lifting silo module 3. After one bag filling, the number of pillow bags on the bag filling silo module 7 is less than the full-load number of the lifting silo module 3. When the next bag filling is performed, the system will compare the bag-missing position on the lifting silo module 3 with the existing pillow bag distribution on the bag filling silo module 7. When the existing pillow bag distribution on the bag filling silo module 7 can cover all bag-missing positions on 3, the above bag filling process can be continued. When the existing pillow bags on the bag filling bin module 7 are not enough to cover the bag-deficient position of the lifting bin module 3, the bag filling module 2 will switch the positions of the pillow bag pre-storage side and the rejection side 7, so that the empty group of bag filling bin modules 7 are aligned with the lifting bin module 3, and the group of bag filling bin modules 7 with remaining pillow bags are turned to the other side of the annular guide rail 13 and aligned with the rejection scraper 24, and then the pre-storage side begins to repeat the above-mentioned pillow bag pre-storage process, while the rejection cylinder 15 on the rejection side is actuated, and the rejection guide shaft 47 moves outward through the guide hole on the rejection connecting rod 48, pushing the rejection scraper 24, and the rejection scraper 24 pushes out the remaining pillow bags to complete the rejection action. The slide 12 is set on a base with a slope on the upper surface, and the rejected residual pillow bags are cleaned and collected through the slope on the base.

[0057] In order to prevent the pillow-type bag from flying out of the silo after entering the silo and moving with the silo, the outer baffle 30, the inner baffle 34 and the shield 36 constitute a retaining mechanism for the pillow-type bag.

[0058] When the bag filling module 2 pre-stores the pillow-type bag, the bag filling scraper 22 pushes the pillow-type bag into a group of bag filling silo modules 7 on the pre-stored side, and the bag filling scraper 22 pushes the pillow-type bag to the entrance of the silo 35 and stops. Due to inertia, the pillow-type bag will continue to slide after entering the silo 35. The inner baffle 34 is a fixed baffle, which is fixedly installed at the end of the silo 35, and can stop the pillow-type bag in place, ensuring the stability of bag entry.

[0059] The outer baffle plate 30 is a follower baffle plate, which is installed together with the base of the follower wheel 32 and can be driven by the follower wheel 32. The rotating shaft of the follower wheel 32 and the outer baffle plate 30 are fixedly connected to the inner and outer walls of the sleeve 46. The follower guide shaft 31 passes through the sleeve 46 and moves up and down in the sleeve 46. The follower wheel 32 rolls along the outer baffle plate cam 14. The outer baffle plate cam 14 is divided into a low position and a high position. The arc positions at both ends are the high positions of the cam, and the straight position outside is the low position of the cam. Figure 16-17As shown in FIG. 1 , when the bag filling silo module 7 moves from the low position of the cam to the high position, the follower wheel 32 is lifted, and the outer baffle 30 is lifted together. The lifted outer baffle 30 blocks the entrance of the silo 35, and when the pillow bag moves on the bag filling silo module 7 to the arc track, it will not be thrown out by the centrifugal force. However, when the bag filling silo module 7 moves to the arc track, although the outer baffle 30 prevents the pillow bag from being thrown out, the addition of the outer baffle 30 will cause the pillow bag to be lifted out by the centrifugal force. Therefore, a device such as the following is provided on the chassis 43 above the arc portion. Fig.18 The shield 36 shown in the figure is semicircular in shape in the present embodiment and just covers the arc portion of the outer baffle cam 14 and the arc track above the annular guide rail 13. The shield 36 presses down the pillow bag so that it is just pressed on the silo 35 and does not fly out.

[0060] After the bag filling is completed, the lifting bin module 3 is driven by the belt 37 and continues to be lifted to the height of the cartoning machine. Then, the upper pusher 4 pushes the pillow bag into the cartoning machine or the large bagging machine and enters the outer packaging area.

[0061] Pillow packaging machines and bag unscramblers belong to the inner packaging area, which is a high-pressure area. Cartoning machines or large bag filling machines belong to the outer packaging area, which is a low-pressure area. The inside of the bag filling elevator is a medium-pressure area. The wind direction is from high pressure to medium pressure to low pressure, so the conveyor belt will not bring back pollutants when it returns from the medium-pressure area to the high-pressure area. Therefore, the bag filling elevator can also prevent the food to be packaged from being contaminated.

[0062] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, cannot be understood as a limitation on the present invention.

[0063] The above is only a preferred embodiment of the present invention, but the present invention is not limited to the above specific embodiments. For ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A bag filling elevator, consisting of a bag filling elevator body, characterized in that: The bag filling elevator body comprises a lifting module (1) and a bag filling module (2), the lifting module (1) comprises a frame (41), a lifting synchronous pulley (38) is arranged at the top of the frame (41), a belt (37) is sleeved on the lifting synchronous pulley (38), a lifting silo module (3) is arranged at equal intervals on the upper bottom surface, the lower bottom surface and two opposite side surfaces of the frame (41), the two ends of the lifting silo module (3) are fixedly connected to the belt (37), and the lifting synchronous pulley (38) is connected to a first motor (39); A conveyor belt (5) having one end connected to a bag sorting machine is horizontally arranged on one side of the frame (41) at a position corresponding to the lowest lifting bin module (3) on the side, the conveyor belt (5) is connected to a second motor (40), a transition bin (16) is fixedly arranged on one side of the conveyor belt (5), a lifting bin module (3) corresponding to the height of the conveyor belt (5) is closely attached to the transition bin (16), and a push-down device is arranged on the other side of the conveyor belt (5) at a position corresponding to the transition bin (16). A lower pusher (6) is provided at the front end of the lower pusher (6) with a lower pusher scraper (18) for pushing the pillow-type bags in the conveyor belt (5) to the lifting silo module (3), and a lower pusher cylinder (17) is connected to the rear end of the lower pusher scraper (18). An upper pusher (4) for pushing the pillow-type bags to the cartoning preparation module in the cartoning machine is fixedly provided above the side surface of the frame (41), and a lower pusher guide shaft (19) penetrating the lower pusher (6) is fixedly connected to the rear end of the lower pusher scraper (18); The bag filling module (2) comprises a chassis (43) arranged on one side of the frame (41) and between the upper pusher (4) and the lower pusher (6); a slideway (12) for horizontally moving the bag filling module (2) is arranged below the chassis (43); the chassis (43) comprises a pre-storage side and a rejection side; the pre-storage side is close to the frame (41) and the rejection side is far from the frame (41); a driving wheel (11) and a driven wheel (8) are arranged on the chassis (43); the driving wheel (11) is connected to a third motor (42); the driving wheel (11) and the A synchronous belt (44) is sleeved on the driven wheel (8) and moves synchronously with the rotation of the driving wheel (11) and the driven wheel (8); an outer baffle cam (14) is provided on the outer edge of the chassis (43); an annular guide rail (13) is also provided on the chassis (43); the annular guide rail (13) comprises a straight rail and an arcuate rail connected to both ends of the straight rail; a slider (25) is provided on the annular guide rail (13) and can slide along the straight rail and the arcuate rail; each slider (25) is connected to a joint bearing (29); the joint bearing (29) is fixedly connected to the synchronous belt (44); Each of the sliders (25) is equipped with a bag filling silo module (7), the bag filling silo module (7) comprising a base (33), a silo (35) arranged on the base (33), an outer baffle (30) arranged on the outside of the silo (35), and an inner baffle (34) arranged on the inside of the silo (35), a follower guide shaft (31) is arranged at the bottom of the silo (35), a sleeve (46) is arranged on the outer sleeve of the follower guide shaft (31), and the sleeve (46) is connected to the outer baffle (30) and the inner baffle (34) is arranged on the inner side of the silo (35). The lower end of the baffle (30) is fixedly connected, a follower wheel (32) capable of rolling on the outer baffle cam (14) is fixedly connected to the side wall of the sleeve (46), the bag filling silo module (7) and the lifting silo module (3) located at the bag filling height on the side of the frame (41) are located on the same horizontal plane, a bag filling push cylinder (20) is provided at the position at the bag filling height in the frame (41), and a bag filling push scraper (22) is provided at the front end of the bag filling push cylinder (20); A bag filling module (10) is arranged above the chassis (43), the front end of the bag filling module (10) faces the pre-storage side of the chassis (43), the rear end of the bag filling module (10) is arranged with a bag filling cylinder (28), the front end of the bag filling module (10) is arranged with a bag filling scraper (26) for scraping the pillow-type bags on the bag filling silo module (7) into the corresponding bag-deficient position on the lifting silo module (3), the bag filling scraper cylinder (27) is arranged above the bag filling scraper (26), and the front end of the bag filling scraper (26) is also fixedly provided with a bag filling guide shaft (21), and the frame (41) is fixedly provided with a bag filling connecting rod (45), and the bag filling guide shaft (21) passes through the bag filling connecting rod (45); A rejection module (9) is also arranged above the chassis (43), the front end of the rejection module (9) faces the rejection side of the chassis (43), the rear end of the rejection module (9) is arranged with a rejection cylinder (15), the front end of the rejection module (9) is arranged with a rejection scraper (24), the rear end of the rejection scraper (24) is fixedly provided with a rejection guide shaft (47), and a rejection connecting rod (48) is fixedly provided on the frame (41), and the rejection guide shaft (47) passes through the rejection connecting rod (48).

2. The bag filling elevator according to claim 1 is characterized in that: The conveyor belt (5), the transition silo (16), and the front end of the lifting silo module (3) closely attached to the transition silo (16) are all aligned.

3. The bag filling elevator according to claim 1 is characterized in that: The driving wheel (11) and the driven wheel (8) are both synchronous pulleys, and the synchronous belt (44) is a toothed belt.

4. The bag filling elevator according to claim 1 is characterized in that: The driven wheel (8) is also provided with a tensioning mechanism (23).

5. The bag filling elevator according to claim 1 is characterized in that: The outer baffle cam (14) is composed of a straight portion and an arcuate portion connected to the straight portion at both ends, the arcuate portion is higher than the straight portion, and a protective cover (36) is provided on the chassis (43) above the arcuate portion.

Images