Full-servo back sealing bag supplementing machine

Abstract

A full-servo back sealing bag supplementing machine comprises a machine frame arranged on one side of an online conveying belt, a plurality of parallel first synchronous belt mechanisms are arranged in the machine frame, and the first synchronous belt mechanisms are driven by first servo motors respectively. A plurality of sliding frames are installed on the machine frame through two sets of guide rods, each sliding frame is connected with a synchronous belt of one first synchronous belt mechanism, and each sliding frame is provided with the bag supplementing bin. Two supporting boxes are fixed to the upper end of the front face of the machine frame and located above the online conveying belt, a guide rail and a second synchronous belt mechanism driven by a second servo motor are arranged in each supporting box, and two sliding plates are installed between the two supporting boxes in a sliding mode through the guide rails. The two sliding plates are respectively connected with a synchronous belt of one second synchronous belt mechanism, and a material pushing frame is respectively hung below the two sliding plates through two air cylinders. According to the machine, feeding of the bag supplementing bin and automatic bag supplementing of the on-line conveying belt can be achieved; and the bag supplementing accuracy is high.

Description

Technical Field

[0001] The utility model belongs to packaging machinery, in particular to a full-servo back-sealing bag-filling machine. Background Art

[0002] At present, back-sealed strip bags are usually used for packaging of medicines such as granules, aqueous solutions, and foods such as milk powder and coffee. The materials are packaged into independent strip bags through the back-sealed strip bag packaging machine, and the specified strip bags are put into boxes or middle bags through subsequent counting and sorting for the latter stage packaging. In order to ensure that the finished products of the latter stage packaging are qualified products, after the output of the back-sealed strip bag packaging machine, a weighing system is installed on the sorting machine to detect the products that fail to meet the measurement requirements, and then the unqualified products are removed through the waste rejection mechanism to ensure that the unqualified products will not flow into the entire packaging line. However, in this way, the strip bags on the conveyor belt of the line will be missing, which will make counting and sorting difficult when the finished products are packaged later, which is not conducive to the subsequent boxing or middle bagging. Therefore, a bag filling machine is needed to fill the silo with qualified strip bags in the missing strip bags on the conveyor belt of the line.

[0003] The existing bag filling methods are mostly manual bag filling or manual feeding, which not only cannot guarantee 100% accuracy, but also easily lead to missed filling; and also cause waste of labor costs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a full-servo back-sealing bag-replenishing machine which can realize automatic bag-replenishing and high bag-replenishing accuracy.

[0005] In order to solve the above problems, the utility model adopts the following technical solutions:

[0006] A full servo back-sealing bag filling machine comprises a frame arranged on one side of an in-line conveyor belt, a plurality of mutually parallel first synchronous belt mechanisms are arranged in the frame, the first synchronous belt mechanisms are respectively driven by first servo motors to drive corresponding bag filling bins to reciprocate;

[0007] A plurality of sliding frames are installed on the frame through two sets of guide rods arranged horizontally, each sliding frame is connected to a synchronous belt of a first synchronous belt mechanism, and each sliding frame is provided with the bag replenishing bin for placing the strips to be replenished;

[0008] Two support boxes are fixed at the upper end in front of the frame, and the support boxes are located above the in-line conveyor belt. A guide rail and a second synchronous belt mechanism driven by a second servo motor are respectively provided in the support boxes. Two slides are slidably installed between the two support boxes through the guide rails, and the two slides are respectively connected to the synchronous belt of one of the second synchronous belt mechanisms. Pusher racks are respectively installed under the two slides through two cylinders for realizing the loading of the bag filling bin and the bag filling of the in-line conveyor belt.

[0009] As a further preference, the first synchronous belt mechanism includes a driving shaft and two driven shafts of equal height, the driving shaft and the driven shaft are respectively provided with synchronous pulleys and surrounded by synchronous belts, and the first servo motor is arranged in the lower part of the frame and is connected to the corresponding first synchronous belt mechanism through a transmission belt mechanism.

[0010] As a further preference, there are 12 first synchronous belt mechanisms, of which the 1st, 4th, 7th and 10th first synchronous belt mechanisms share two driven shafts, the 2nd, 5th, 8th and 11th first synchronous belt mechanisms share two driven shafts, and the 3rd, 6th, 9th and 12th first synchronous belt mechanisms share two driven shafts to simplify the structure.

[0011] As a further preference, the second servo motor is disposed in the upper part of the frame and arranged vertically with the second synchronous belt mechanism, and the output end of the second servo motor is connected to the driving shaft of the second synchronous belt mechanism through a coupling.

[0012] As a further preference, the bag filling silo has three workstations on the guide rod, which are a waiting area, a bag filling area and a parking area from front to back, and the pushing rack corresponds to the bag filling area.

[0013] As a further preference, a bracket is provided below the support box on the left side in front of the frame, and a plurality of detection switches are arranged side by side on the bracket for detecting the position of the bag filling silo located in the waiting area.

[0014] As a further preference, the pusher rack is L-shaped.

[0015] As a further preference, strip holes penetrating the slide plate are respectively provided on the inner side plates of the support box to facilitate the reciprocating sliding of the slide plate.

[0016] The beneficial effects of the utility model are:

[0017] 1. Since a plurality of first synchronous belt mechanisms which are parallel to each other and driven by first servo motors are arranged on the frame, a plurality of sliding frames are installed on the frame through two sets of guide rods arranged horizontally, each sliding frame is connected to a synchronous belt of a first synchronous belt mechanism, and each sliding frame is provided with the bag filling bin. The sliding frame is driven to slide horizontally by the first synchronous belt mechanism, so that the bag filling bin can be driven to slide to the bag missing bin position of the in-line conveyor belt, and then the pushing frame under the two slide plates installed between the two support boxes can be slidably installed, so that the bag filling bin can be loaded and the in-line conveyor belt can be automatically filled with bags; the bag filling has high accuracy, which can ensure 100% accuracy and avoid waste of labor costs.

[0018] 2. By setting up multiple detection switches side by side on the bracket in front of the frame, the position and number of bag replenishment bins in the waiting area can be detected. By comparing this number with the number of bins with missing strip bags on the in-line conveyor belt, the workstations that cannot be replenished can be detected and accurately eliminated in the later stage, which can improve the accuracy of the later stage packaging, improve the packaging efficiency of the entire line, and improve the automation control of the entire line. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the utility model.

[0020] Figure 2 yes Figure 1 Top view of the .

[0021] Figure 3 yes Figure 1 Left view of .

[0022] Figure 4 yes Figure 1 Rear view of.

[0023] Figure 5 yes Figure 4 AA section view.

[0024] Figure 6 yes Figure 1 BB cross-sectional view.

[0025] Figure 7 yes Figure 1 CC cross-sectional view.

[0026] Figure 8 yes Figure 3 DD cross-sectional view.

[0027] Fig. 9 yes Figure 5 EE cross-sectional view.

[0028] Fig.10 It is an installation schematic diagram of the utility model.

[0029] In the figure: frame 1, bag filling silo 2, support box 3, first push rack 4, cylinder 5, slide plate 6, support leg 7, bracket 8, second push rack 9, detection column 10, detection switch 11, first synchronous belt mechanism 12, second servo motor 13, support plate 14, second synchronous belt mechanism 15, motor base plate 16, transmission belt mechanism 17, first servo motor 18, guide rod 19, sliding frame 20, guide rail 21, slider 22. DETAILED DESCRIPTION

[0030] like Figure 1-Figure 10As shown, the utility model relates to a full servo back-sealing bag filling machine, comprising a frame 1 arranged on one side of the inline conveyor belt, the frame 1 is made of plates connected by screws and the front side corresponding to the inline conveyor belt is stepped, and legs 7 are respectively arranged at the four corners of the bottom of the frame. A plurality of mutually parallel first synchronous belt mechanisms 12 are arranged in the frame 1, and the first synchronous belt mechanisms 12 are respectively driven by first servo motors 18 and arranged in parallel with the inline conveyor belt, and are used to drive the corresponding bag filling bin 2 to reciprocate.

[0031] The first synchronous belt mechanism 12 includes a driving shaft 121 and two driven shafts 122 of equal height which are rotatably mounted in the frame 1 through a bearing seat and a bearing, and synchronous pulleys 123 of corresponding positions are respectively mounted on the driving shaft and the driven shaft and are surrounded by a synchronous belt 124, and the driving shaft 121 is connected to the corresponding synchronous pulley 123 through a key, and the synchronous pulley 123 on the driven shaft 122 is mounted on the driven shaft through a bearing, and the first servo motor 18 is fixedly mounted on the lower part of the frame 1 through a vertical plate and is connected to the driving shaft 121 driven by the corresponding first synchronous belt mechanism 12 through a transmission belt mechanism 17.

[0032] In this embodiment, there are 12 first synchronous belt mechanisms, among which the 1st, 4th, 7th and 10th first synchronous belt mechanisms share two driven shafts, the 2nd, 5th, 8th and 11th first synchronous belt mechanisms share two driven shafts, and the 3rd, 6th, 9th and 12th first synchronous belt mechanisms share two driven shafts to simplify the structure.

[0033] A plurality of sliding frames 20 are slidably installed on the frame 1 through two sets of horizontally arranged guide rods 19 and linear bearings. The number of the sliding frames 20 is equal to the number of the first synchronous belt mechanisms 12, and each sliding frame 20 is fixedly connected to the synchronous belt of one of the first synchronous belt mechanisms 12 through a clamping block. The bag filling bin 2 is fixedly provided on each sliding frame 20 by screws for placing the strips to be replenished; a detection column 10 is fixedly installed in the middle of the bag filling bin 2 for assisting in detecting the bag filling bin 2.

[0034] Two support boxes 3 are fixed at the upper end in front of the frame 1. The support boxes 3 are located above the in-line conveyor belt and arranged vertically with the frame 1. The support boxes 3 are rectangular boxes formed by a combination of plates. In each support box 3, a guide rail 21 and a second synchronous belt mechanism 15 driven by a second servo motor 13 are respectively arranged along its longitudinal direction. The guide rail 21 is fixed on the bottom plate in the support box 3 and is located below the second synchronous belt mechanism 15. The driving shaft and driving pulley of the second synchronous belt mechanism 15 are installed in the frame 1 through a pair of support plates 14. The second servo motor 13 is fixed to the upper part of the frame 1 through a motor base plate 16 and is arranged vertically with the second synchronous belt mechanism 15. The output end of the second servo motor 13 is connected to the driving shaft of the second synchronous belt mechanism 15 through a coupling.

[0035] Two slide plates 6 are slidably installed between the two support boxes 3 through the guide rails 21. The two ends of the two slide plates 6 are slidably installed on the guide rails 21 through the sliders 22, and the two slide plates 6 are respectively connected to the synchronous belt of one of the second synchronous belt mechanisms 15 through the clamping plates. Two cylinders 5 are fixed under the two slide plates 6, and a pusher rack is hoisted at the lower end of the piston rod of the two cylinders 5 through screws. The pusher rack is L-shaped and is respectively a first pusher rack 4 and a second pusher rack 9. The first pusher rack 4 is located on the other side of the inline conveyor belt, and is used to realize the loading of the bag filling bin 2; the second pusher rack 9 corresponds to the inner end of the strip bag groove of the bag filling bin 2, and is used to realize the bag filling of the inline conveyor belt. Strip holes 301 that penetrate the slide plates 6 are respectively provided on the inner side plates of the support box 3, so that the slide plates 6 can slide back and forth.

[0036] The bag filling bin 2 has three working positions when sliding on the guide rod 19, which are the waiting area, bag filling area and parking area from front to back, and the pushing rack corresponds to the bag filling area. A bracket 8 is fixed below the support box 3 on the left side in front of the frame 1, and a plurality of detection switches 11 are arranged side by side on the bracket 8. In this embodiment, 12 detection switches 11 are used as an example. The detection switches 11 correspond to the detection columns 10 one by one, and are used to detect the position of the bag filling bin 2 located in the waiting area.

[0037] When working, the specific process is as follows:

[0038] 1. In the initial state, the cylinder 5 is in an extended state, so that the two push racks are close to the height of the online conveyor belt 23 and the bag filling bin 2 respectively; the bag filling bins 2 are all located in the waiting area and the bag slots of each bag filling bin 2 are respectively placed with bag strips to be replenished; the strips to be packaged are transported from front to back through the online conveyor belt 23. When they are transported to the bag filling machine, a group of detection switches 24 arranged on the other side of the online conveyor belt 23 detect whether there is a bag shortage in each group of material slots on the online conveyor belt 23;

[0039] 2. If it is detected that there is a trough with missing bags in the group of troughs, the number and position information of the troughs with missing bags will be transmitted to the PLC controller of the back-seal bag packaging machine, and the controller will control the in-line conveyor belt to stop when the group of troughs moves to the corresponding bag replenishment area;

[0040] 3. At the same time, the controller controls the first servo motor 18 connected to the first synchronous belt mechanism 12 corresponding to the bag filling bin 2 near the bag filling area to start, and the first synchronous belt mechanism 12 drives the bag filling bins 2 with the same number as the bag-deficient troughs to move to the bag filling area at the same time and stop, and correspond to the positions of the bag-deficient troughs located in the bag filling area one by one;

[0041] 4. Then, the controller controls the second synchronous belt mechanism connected to the second pusher 9 to start, driving the corresponding slide plate 6 and the second pusher 9 to move in the direction of the connected conveyor belt, and pushing the strips in the bag filling bin 2 in the bag filling area into the bag-deficient trough in the bag filling area, respectively, to realize automatic bag filling;

[0042] 5. After the bag is filled, the controller controls the first servo motor 18 connected to the first synchronous belt mechanism 12 corresponding to the bag filling bin 2 located in the bag filling area to start, and the bag filling bin 2 located in the bag filling area is driven by the first synchronous belt mechanism 12 to move to the parking area and stop at the same time, thereby making room for the remaining bag filling bins 2;

[0043] 6. At the same time, the controller controls the cylinder 5 connected to the second pusher 9 to retract and the second synchronous belt mechanism to start in reverse, so that the second pusher 9 is lifted and returned; at the same time, the connecting conveyor belt is controlled to continue to run, and a group of detection switches on the connecting conveyor belt continue to detect whether there is a bag shortage.

[0044] 7. When all the bag filling bins 2 in the waiting area have moved to the bag filling area to complete bag filling and enter the parking area, the controller controls the first servo motors 18 of all the first synchronous belt mechanisms 12 to start at the same time, and drives all the bag filling bins 2 to move to the bag filling area and stop at the same time through the first synchronous belt mechanism; at the same time, the in-line conveyor belt is controlled to stop running;

[0045] 8. The controller controls the first synchronous belt mechanism connected to the first pusher 4 to start, driving the corresponding slide plate 6 and the first pusher 4 to move horizontally toward the bag filling bin, and respectively pushes a group of strips on the inline conveyor belt into the bag filling bin in the bag filling area, so as to realize automatic loading of the bag filling bin; after loading, the cylinder 5 connected to the first pusher 4 is controlled to retract and the first synchronous belt mechanism is reversely started, so that the first pusher 4 is lifted and returned; at the same time, the inline conveyor belt is controlled to continue to run, and a group of detection switches on the inline conveyor belt are used to continue to detect whether there is a bag shortage;

[0046] 9. Continue to control the first servo motors 18 of all the first synchronous belt mechanisms to start at the same time, and drive all the bag filling silos after loading to move to the waiting area and stop at the same time through the first synchronous belt mechanism; and wait for the next bag filling again.

[0047] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A full-servo back-seal bag filling machine, comprising a frame arranged on one side of an in-line conveyor belt, characterized in that: A plurality of mutually parallel first synchronous belt mechanisms are arranged in the frame, and the first synchronous belt mechanisms are respectively driven by first servo motors to drive the corresponding bag filling bins to reciprocate; A plurality of sliding frames are installed on the frame through two sets of guide rods arranged horizontally, each sliding frame is connected to a synchronous belt of a first synchronous belt mechanism, and each sliding frame is provided with the bag replenishing bin for placing the strips to be replenished; Two support boxes are fixed at the upper end in front of the frame, and the support boxes are located above the in-line conveyor belt. A guide rail and a second synchronous belt mechanism driven by a second servo motor are respectively provided in the support boxes. Two slides are slidably installed between the two support boxes through the guide rails, and the two slides are respectively connected to the synchronous belt of one of the second synchronous belt mechanisms. Pusher racks are respectively installed under the two slides through two cylinders for realizing the loading of the bag filling bin and the bag filling of the in-line conveyor belt.

2. The full-servo back-seal bag-repairing machine according to claim 1 is characterized in that: The first synchronous belt mechanism includes a driving shaft and two driven shafts of equal height, the driving shaft and the driven shaft are respectively provided with synchronous pulleys and surrounded by synchronous belts, the first servo motor is arranged at the lower part of the frame and is connected to the corresponding first synchronous belt mechanism through a transmission belt mechanism.

3. The full servo back-seal bag filling machine according to claim 2 is characterized by: There are 12 first synchronous belt mechanisms, among which the 1st, 4th, 7th and 10th first synchronous belt mechanisms share two driven shafts, the 2nd, 5th, 8th and 11th first synchronous belt mechanisms share two driven shafts, and the 3rd, 6th, 9th and 12th first synchronous belt mechanisms share two driven shafts to simplify the structure.

4. The full-servo back-seal bag-repairing machine according to claim 1 is characterized in that: The second servo motor is arranged at the upper part of the frame and is vertically arranged with the second synchronous belt mechanism. The output end of the second servo motor is connected to the driving shaft of the second synchronous belt mechanism through a coupling.

5. The full-servo back-seal bag-repairing machine according to claim 1 is characterized in that: The bag filling silo has three workstations on the guide rod, which are a waiting area, a bag filling area and a parking area from front to back, and the pushing rack corresponds to the bag filling area.

6. The full servo back-seal bag filling machine according to claim 5 is characterized in that: A bracket is provided below the support box on the left side in front of the frame, and a plurality of detection switches are arranged side by side on the bracket for detecting the position of the bag filling silo located in the waiting area.

7. A full servo back-sealing bag-repairing machine according to claim 1 or 6, characterized in that: The pusher frame is L-shaped.

8. The full servo back-seal bag filling machine according to claim 1 is characterized by: The inner side plates of the support box are respectively provided with strip holes penetrating the slide plate so that the slide plate can slide back and forth.

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