Packaging mechanism adopting self-sealing strip packaging bag for loading

Abstract

The utility model discloses a packaging mechanism adopting a self-sealing strip packaging bag for loading, which comprises a bag body opening mechanism, a bagging mechanism and a mounting plate, the bag body opening mechanism and the bagging mechanism are mounted on the same side of the mounting plate, and the bag body opening mechanism is divided into a self-sealing strip opening assembly and a bagging opening assembly. The self-sealing strip opening assembly and the bagging opening assembly are arranged side by side, the transfer assembly is arranged between the self-sealing strip opening assembly and the bagging opening assembly, and the bagging opening assembly is in butt joint with the bagging mechanism. The self-sealing strip and the bag body are opened through secondary opening, the butt joint pipe is directly sleeved with the bag body, and the situation that during bagging, materials abut against the self-sealing strip, and bagging is affected is avoided.

Description

Technical Field

[0001] This utility model relates to the field of self-sealing packaging bag filling equipment, specifically to a packaging mechanism that uses self-sealing packaging bags for filling materials. Background Technology

[0002] Traditional self-sealing bags have an opening at the tail. Products are filled through the tail of the bag, eliminating the need to open the self-sealing strip before filling. However, this tail-opening design leaves the bag exposed to the outside environment before sealing, potentially allowing bacteria to contaminate it. Furthermore, if the heat seal fails, the material inside the bag may leak out, making resealing impossible.

[0003] There is a need for a bag with an opening at the self-sealing strip end. Before filling, the bag is sealed by the self-sealing strip. This way, the bag is not isolated from the outside air before filling. Also, if heat sealing fails, the self-sealing strip will seal the bag, and manual re-heat sealing is possible. However, the previous bagging equipment with an opening at the tail end is not suitable for bagging self-sealing strip bags. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this utility model proposes a packaging mechanism that uses self-sealing strip bags for filling. This mechanism facilitates heat sealing of the bag body, which is open at one end of the self-sealing strip. By opening the self-sealing strip and the bag body separately through a secondary opening, the bag body can be directly fitted onto the connecting pipe, avoiding the material pressing against the self-sealing strip and affecting the filling process. This mechanism is suitable for various products that require self-sealing strip bags.

[0005] To achieve the above objectives, the present invention provides a packaging mechanism for filling materials using self-sealing bags, comprising a bag opening mechanism, a bag fitting mechanism, and an mounting plate. The bag opening mechanism and the bag fitting mechanism are installed on the same side of the mounting plate. The bag opening mechanism is divided into a self-sealing strip opening assembly and a bag filling opening assembly, which are arranged side by side. A transfer assembly is provided between the self-sealing strip opening assembly and the bag filling opening assembly. The bag filling opening assembly is connected to the bag fitting mechanism.

[0006] The bagging mechanism includes a connecting pipe that is mounted on a mounting plate. The connecting pipe passes through the mounting plate. A first telescopic component is provided between the bagging opening component and the mounting plate. The bag is fitted onto the connecting pipe through the first telescopic component.

[0007] Preferably, the self-sealing strip opening assembly includes an opening piece and a first bottom adsorption assembly. A third telescopic assembly is provided on the mounting plate. Two opening pieces are arranged vertically on the third telescopic assembly. An opening cylinder is provided between the two opening pieces. A first bottom adsorption assembly that can be raised and lowered is provided below one side of the opening piece. A negative pressure plate for adsorbing the top of the bag is provided at the bottom of the transfer assembly. The transfer assembly moves above the first bottom adsorption assembly to adsorb the top of the bag.

[0008] Preferably, a movable frame with a central hollow section is provided on one side of the connecting pipe, the hollow section of which allows the connecting pipe to pass through. A first telescopic component is provided between the movable frame and the mounting plate, and the movable frame is moved by the first telescopic component. A support plate that can open and close is provided on the movable frame.

[0009] Preferably, two opposing sealing plates are provided on the back of the movable frame. When the sealing plates are closed, they seal the end of the connecting pipe. An opening module is provided between the sealing plates and the movable frame to open the sealing plates. A second telescopic component is provided between the opening module and the movable frame. An opening piece is fixed on each sealing plate and extends into the hollow area of ​​the movable frame. When the opening module is attached to the movable frame, the opening piece extends out of the movable frame. When the two sealing plates are closed, the two opening pieces close. Conversely, the opening pieces open the bag.

[0010] Preferably, the opening module includes a guide rail and sliding seats. The guide rail is vertically arranged, and two sets of sliding seats that move up and down on the guide rail are clamped on the guide rail. A cylinder is arranged between the guide rail and each set of sliding seats. A second telescopic component is installed between the guide rail and the moving frame, and the distance between the guide rail and the moving frame is adjusted by the second telescopic component.

[0011] Preferably, the bag opening component is the second bottom adsorption component. The second bottom adsorption component is installed on the front of the moving frame and is located below the spreading piece. When the transfer component moves to directly above the second bottom adsorption component, the transfer component and the second bottom adsorption component open the bag.

[0012] Preferably, the transfer assembly includes a two-axis moving assembly and a negative pressure plate. The two-axis moving assembly is mounted on the mounting plate and includes a translational assembly and a lifting assembly. The lifting assembly is mounted on the translational assembly, and the negative pressure plate is located below the lifting assembly. The translational assembly is mounted on the front of the mounting plate and is located above the self-sealing strip opening assembly and the bagging opening assembly. The negative pressure plate moves above the self-sealing strip opening assembly and the bagging opening assembly via the translational assembly. The lifting assembly enables the negative pressure plate to fit against the top of the self-sealing strip opening assembly and the bagging opening assembly. The bottom of the lifting assembly slides against the top of the negative pressure plate. An elastic component is provided between the bottom of the lifting assembly and the negative pressure plate for return to its original position.

[0013] Preferably, a negative pressure suction head is provided at the bottom of the negative pressure plate, and an L-shaped plate is installed at the top of the negative pressure plate. One end of the L-shaped plate is vertically upward, and an elastic component is fitted onto the L-shaped plate and the lifting component. When the expansion piece opens, the upper expansion piece presses the bag onto the negative pressure plate, and the movement of the expansion piece drives the movement of the negative pressure plate. The lower expansion piece presses the bag onto the top surface of the bag opening component.

[0014] Compared with the prior art, the advantages of this utility model are:

[0015] By opening the self-sealing strip and the bag body separately through a second opening, the bag body is directly put onto the connecting pipe, which avoids the material pressing against the self-sealing strip and affecting the bagging process.

[0016] When bagging, first open the bag body and the self-sealing strip to avoid the connecting tube pressing against the self-sealing strip and affecting the bagging process.

[0017] Before bagging, the sealing plate closes one end of the connecting tube. After bagging is completed, the sealing plate opens to allow for bagging. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the present invention.

[0019] Figure 2 This is a partial perspective view of the present invention.

[0020] Figure 3 This is a schematic diagram of the self-sealing strip opening assembly of this utility model.

[0021] Figure 4 This is a schematic diagram of the bag opening assembly of this utility model.

[0022] Figure 5 This is a perspective view of the bag opening assembly of this utility model.

[0023] Figure 6 This is a cross-sectional view of the bag opening assembly of this utility model.

[0024] Figure 7 This is a schematic diagram of the back of the bag opening assembly of the utility model.

[0025] The components include: 1. Bag opening mechanism; 2. Self-sealing strip opening assembly; 3. Opening plate; 4. Opening cylinder; 5. First bottom adsorption assembly; 6. Bag opening assembly; 7. Second bottom adsorption assembly; 8. Transfer assembly; 9. Two-axis moving assembly; 10. Translation assembly; 11. Lifting assembly; 12. Negative pressure plate; 13. Elastic assembly; 14. Negative pressure suction head; 15. L-shaped plate; 16. Bag covering mechanism; 17. Connecting pipe; 18. First telescopic assembly; 19. Mounting plate; 20. Moving frame; 21. Third telescopic assembly; 22. Spreading plate; 23. Sealing plate; 24. Opening module; 25. Guide rail; 26. Sliding seat; 27. Second telescopic assembly. Detailed Implementation

[0026] The present invention will be further described with reference to the accompanying drawings.

[0027] like Figure 1-7 As shown, a packaging mechanism using self-sealing bags for filling includes a bag opening mechanism 1, a bag-covering mechanism 16, and a mounting plate 19. The bag opening mechanism 1 and the bag-covering mechanism 16 are mounted on the front of the mounting plate 19. The bag opening mechanism 1 is divided into a self-sealing strip opening assembly 2 and a bag-filling opening assembly 6, which are arranged side-by-side. Two sets of self-sealing strip opening assemblies 2 and bag-filling opening assemblies 6 are provided, with the two sets of bag-filling opening assemblies 6 located at... In the middle, two sets of self-sealing strip opening components 2 are located on the left and right sides of the bag opening component 6. A transfer component 8 is set between the self-sealing strip opening component 2 and the bag opening component 6. The bag body with the self-sealing strip opened by the self-sealing strip opening component 2 is transferred to the bag opening component 6 for secondary opening. The bag opening component 6 opens the bag body and puts the bag opening onto the bagging mechanism 16. In this way, the cotton swabs pushed out from the bagging mechanism 16 enter the bag body.

[0028] The bagging mechanism 16 includes two connecting pipes 17, which are bolted to the front of the mounting plate 19. Each connecting pipe 17 is connected to one of two bag-opening assemblies 6. The connecting pipes 17 pass through the mounting plate 19. A first telescopic assembly 18, which is a cylinder, is fixed between the bag-opening assembly 6 and the mounting plate 19 by bolts. The piston rod of the first telescopic assembly 18 is bolted to the bag-opening assembly 6. The cylinder body is fixed to the front of the mounting plate 19 by bolts. The bag body is put on the connecting pipe 17 by the first telescopic component 18. The bag opening component 6 moves closer to and away from the mounting plate 19 by the extension and retraction of the first telescopic component 18. When the first telescopic component 18 is raised, the bag opening component 6 moves away from the mounting plate 19 and opens the bag body. Then the first telescopic component 18 retracts and the bag opening component 6 puts the opened bag body on the connecting pipe 17. The cotton swab is pushed out from the connecting pipe 17 and bagged.

[0029] The self-sealing strip opening assembly 2 includes an opening piece 3 and a first bottom adsorption assembly 5. A third telescopic assembly 21, which is a cylinder, is bolted to the front of the mounting plate 19. The cylinder body of the third telescopic assembly 21 is bolted to the mounting plate 19. A translation seat is bolted to the piston rod of the third telescopic assembly 21, and the translation seat slides in conjunction with the mounting plate 19. A track is bolted to the mounting plate 19, and the translation seat has a sliding groove for moving along the track. The translation seat moves back and forth along the track. Two opening pieces 3 are arranged vertically on the third telescopic assembly 21. The bottom opening piece 3 is bolted to the translation seat. An opening cylinder 4 is installed between the two opening plates 3. The opening cylinder 4 is fixed to the translation base by bolts. The piston rod of the opening cylinder 4 is fixed to the opening plate 3 located at the top by bolts. The extension and retraction of the opening cylinder realizes the closing and opening of the two opening plates 3. A first bottom adsorption component 5 that can be raised and lowered is set below the front side of the opening plate 3. The first bottom adsorption component 5 is a groove with a negative pressure adsorption head embedded in the groove. The negative pressure adsorption head is connected to a negative pressure pump through a pipe. When the bag is placed on the plate, the negative pressure adsorption head adsorbs the bag. A cylinder is installed between the bottom of the first bottom adsorption component 5 and the front of the mounting plate by bolts. The extension and retraction of the cylinder realizes the opening and closing of the first bottom adsorption component. 5. The bottom of the lifting and transfer assembly 8 is bolted with a negative pressure plate 12 that adsorbs the top of the bag. The bottom of the negative pressure plate 12 adsorbs the top surface of the bag, thus creating a negative pressure at the bottom of the negative pressure plate 12 and adsorbing the top of the bag. The transfer assembly 8 moves above the first bottom adsorption assembly 5 to adsorb the top of the bag. During operation, when the bag is placed on the first bottom adsorption assembly 5, the transfer assembly 8 moves the negative pressure plate 12 above the first bottom adsorption assembly 5, pressing the bag onto the first bottom adsorption assembly 5. The position where the negative pressure plate 12 and the first bottom adsorption assembly 5 adsorb the bag is between the bag opening and the self-sealing strip. When the negative pressure plate 12 separates from the first bottom adsorption assembly 5 (the negative pressure plate 12 rises), (The first bottom adsorption component 5 remains stationary) The bag opening opens to the self-sealing strip, the third telescopic component 21 rises, so that the opening piece 3 extends into the bag opening. The opening piece 3 at the top moves upward and presses against the bottom of the negative pressure plate 12. The negative pressure plate and the opening piece 3 rise synchronously, thus opening the self-sealing strip. Then the opening piece 3 at the top moves downward and closes with the opening piece 3 at the bottom. Then the third telescopic component 21 retracts, the opening piece 3 exits the bag, the first bottom adsorption component 5 releases the negative pressure, and the top of the bag is adsorbed to the bottom of the negative pressure plate 12. The negative pressure plate 12 moves inward and is aligned with the connecting pipe 17. The side of the first bottom adsorption component 5 near the mounting plate 19 is fixed with an upwardly extending baffle by welding to facilitate the limiting of the bag.A temporary storage frame is installed on the front side of the first bottom adsorption component. The bag is placed inside the temporary storage frame. A cylinder is installed between the temporary storage frame and the mounting plate 19 by bolts. The cylinder moves the temporary storage frame left and right. A notch is provided at the bottom of the temporary storage frame, facing the mounting plate 19, to allow space for the first bottom adsorption component. When the temporary storage frame moves towards the mounting plate and the bag is above the first bottom adsorption component 5, the first bottom adsorption component 5 lifts the bag upwards and adsorbs the bottom of the bag, then moves the temporary storage frame forward to return to its original position.

[0030] A movable frame 20 with a central cutout is provided on the front side of the connecting pipe 17. The cutout portion of the movable frame 20 allows the connecting pipe 17 to pass through. A first telescopic component 18 is installed between the movable frame 20 and the mounting plate 19 by bolts. The first telescopic component 18 enables the movable frame 20 to move back and forth. An opening piece 22 that can open and close is provided on the movable frame 20. During operation, the bag opening component 6 first opens the bag body, and the bag opening fits against the front side of the movable frame 20. The opening piece 22... 2. Push forward, so that the expansion piece 22 extends into the opened bag body. The depth of the expansion piece 22 into the bag body is greater than the depth from the bag opening to the self-sealing strip. The expansion piece 22 separates and opens the bag body. When the expansion piece 22 opens, the rectangular connecting pipe 17 is located between the two expansion pieces 22. The moving frame 20 and the negative pressure plate 12 move backward at the same time. The moving frame 20 is in contact with the front of the mounting plate 19. In this way, the bag body is put on the connecting pipe 17, which avoids the bag body pressing against the self-sealing strip and failing to be put on successfully when it is put on the connecting pipe 17.

[0031] Two opposing sealing plates 23 are provided on the back of the movable frame 20. When the sealing plates 23 are closed, they seal the front end of the connecting pipe 17. An opening module 24 is provided between the sealing plates 23 and the movable frame 20, which opens and closes the sealing plates 23. A second telescopic component 27, which is a cylinder, is provided between the opening module 24 and the movable frame 20. The cylinder body of the second telescopic component is fixed to the movable frame 20 with bolts, and the piston rod of the second telescopic component 27 is fixed to the opening module 24 with bolts. The extension and retraction of the second telescopic component 27 realizes the forward and backward movement of the sealing plates 23. Each sealing plate 23 is fixed with a support piece 22 by integral machining. The expansion piece 22 is perpendicular to the sealing plate 23 and extends into the hollow area of ​​the moving frame 20. When the opening module 24 is in contact with the moving frame 20, the expansion piece 22 extends out of the moving frame 20. When the two sealing plates 23 are closed, the two expansion pieces 22 close. Conversely, the expansion piece 22 opens the bag. During operation, the sealing plate 23 moves forward and approaches the moving frame 20 by retracting the second telescopic component 27. In this way, the expansion piece 22 protrudes out of the moving frame 20 and extends into the bag. Then, the opening module 24 opens the sealing plate 23, and the expansion piece 22 opens accordingly. The bag opening is opened. Then, the moving frame 20 and the negative pressure plate 12 move backward, so that the bag is fitted onto the connecting pipe 17.

[0032] The opening module 24 includes a guide rail 25 and a sliding seat 26. The guide rail 25 is vertically arranged. The piston rod of the second telescopic component 27 is fixed to the guide rail 25 by bolts. Two sets of sliding seats 26 that move up and down on the guide rail 25 are clamped on the guide rail 25. A cylinder is fixed between the guide rail 25 and each set of sliding seats 26 by bolts. The sliding seats 26 move on the guide rail 25 by the extension and retraction of the cylinders. The second telescopic component 27 is installed between the guide rail 25 and the moving frame 20. The distance between the guide rail 25 and the moving frame 20 is adjusted by the second telescopic component 27. When the second telescopic component 27 retracts, the guide rail 25 moves closer to the moving frame 20, and the opening piece 22 passes through the moving frame 20 and extends into the bag body.

[0033] The bag opening assembly 6 is the second bottom adsorption assembly 7. The second bottom adsorption assembly 7 is a negative pressure adsorption head that is embedded in the top of the plate and connected to the negative pressure pump. The second bottom adsorption assembly 7 is installed on the front of the moving frame 20 by bolts and is located below the expansion plate 22. When the transfer assembly 8 moves to directly above the second bottom adsorption assembly 7, the negative pressure plate 12 descends and contacts the bottom of the bag and the top of the second bottom adsorption assembly 7. The second bottom adsorption assembly 7 adsorbs the bottom of the bag, and the negative pressure plate 12 rises, thus opening the bag.

[0034] The transfer assembly 8 includes a two-axis moving assembly 9 and a negative pressure plate 12. The two-axis moving assembly 9 is bolted to the mounting plate 19 and includes a translation assembly 10 and a lifting assembly 11. The translation assembly 10 includes a transverse guide rail and a transverse sliding seat. The transverse guide rail is fixed to the mounting plate 19 by bolts. The transverse sliding seat moves left and right while locked on the transverse guide rail. A cylinder is bolted between the transverse sliding seat and the mounting plate to move the transverse sliding seat left and right. The lifting assembly 11 is bolted to the transverse sliding seat. The lifting assembly 11 is a vertically arranged cylinder. The negative pressure plate 12 is located below the lifting assembly 11. The translation assembly 10 is mounted on the front of the mounting plate 19 and is located between the self-sealing strip opening assembly 2 and the bagging strip opening assembly 12. Above the opening assembly 6, the negative pressure plate 12 moves to the top of the self-sealing strip opening assembly 2 and the bagging opening assembly 6 via the translation assembly 10. The lifting assembly 11 brings the negative pressure plate 12 closer to the top of the self-sealing strip opening assembly 2 and the bagging opening assembly 6. The bottom of the lifting assembly 11 slides against the top of the negative pressure plate 12. A slide block is fixed to the piston rod of the lifting assembly 11 by bolts, and a slide rail is fixed to the top of the negative pressure plate 12 by bolts. The slide block is locked onto the slide rail, thus enabling the negative pressure plate 12 to move back and forth. An elastic assembly 13, which is a rubber band, is provided between the bottom of the lifting assembly 11 and the negative pressure plate 12. The two ends of the rubber band are tied to the piston rod of the lifting assembly 11 and the rear side of the negative pressure plate 12, respectively. The negative pressure plate 12 returns to its original position by means of the elastic assembly 13.

[0035] The bottom of the negative pressure plate 12 is fixed with a negative pressure suction head 14 by bolts. An L-shaped plate 15 is installed on the top of the negative pressure plate 12 by bolts. The rear end of the L-shaped plate 15 is vertically upward. The elastic component 13 is sleeved on the rear end face of the L-shaped plate 15 and the lifting component 11. When the opening piece 22 opens, the upper opening piece 22 presses the bag body onto the negative pressure plate 12. The movement of the opening piece 22 causes the negative pressure plate 12 to move backward. The lower opening piece 22 presses the bag body onto the top surface of the bag opening component 6.

[0036] All cylinders in this application are connected to solenoid valves, which are connected to the output of a PLC controller. The PLC controller controls the opening and closing of the solenoid valves. The air inlet of the solenoid valves is connected to an air compressor. The connection between the cylinders and the PLC is all prior art.

Claims

1. A packaging mechanism for filling a bag with a self-sealing gasket, comprising a bag opening mechanism, a bag setting mechanism and a mounting plate, wherein the bag opening mechanism and the bag setting mechanism are mounted on the same side of the mounting plate, characterized in that, The bag opening mechanism is divided into a self-sealing strip opening assembly and a bagging opening assembly. The self-sealing strip opening assembly and the bagging opening assembly are arranged side by side. A transfer assembly is set between the self-sealing strip opening assembly and the bagging opening assembly. The bagging opening assembly is connected to the bagging mechanism. The bagging mechanism includes a connecting pipe that is mounted on a mounting plate. The connecting pipe passes through the mounting plate. A first telescopic component is provided between the bagging opening component and the mounting plate. The bag is fitted onto the connecting pipe through the first telescopic component.

2. The packaging mechanism of claim 1, wherein, The self-sealing strip opening assembly includes an opening piece and a first bottom adsorption assembly. A third telescopic assembly is provided on the mounting plate. Two opening pieces are arranged vertically on the third telescopic assembly. An opening cylinder is provided between the two opening pieces. A first bottom adsorption assembly that can be raised and lowered is provided below one side of the opening piece. A negative pressure plate is provided at the bottom of the transfer assembly to adsorb the top of the bag. The transfer assembly moves above the first bottom adsorption assembly to adsorb the top of the bag.

3. A packaging mechanism for filling a bag with a self-sealing strip according to claim 1 or 2, characterized in that A movable frame with a hollow center is provided on one side of the connecting pipe. The hollow part of the movable frame allows the connecting pipe to pass through. A first telescopic component is provided between the movable frame and the mounting plate. The movable frame can be moved by the first telescopic component. A support plate that can open and close is provided on the movable frame.

4. The packaging mechanism of claim 3, wherein, Two opposing sealing plates are installed on the back of the movable frame. When the sealing plates are closed, they seal the end of the connecting pipe. An opening module is installed between the sealing plates and the movable frame to open the sealing plates. A second telescopic component is installed between the opening module and the movable frame. An opening piece is fixed on each sealing plate and extends into the hollow area of ​​the movable frame. When the opening module is attached to the movable frame, the opening piece extends out of the movable frame. When the two sealing plates are closed, the two opening pieces close. Conversely, the opening pieces open the bag.

5. A packaging mechanism for filling a bag with a self-sealing closure according to claim 4, wherein The opening module includes a guide rail and sliding seats. The guide rail is vertically arranged, and two sets of sliding seats that move up and down on the guide rail are clamped on the guide rail. A cylinder is arranged between the guide rail and each set of sliding seats. A second telescopic component is installed between the guide rail and the moving frame, and the distance between the guide rail and the moving frame is adjusted by the second telescopic component.

6. A packaging mechanism for filling a bag with a self-sealing closure according to claim 5, wherein The bag opening component is the second bottom adsorption component. The second bottom adsorption component is installed on the front of the moving frame and is located below the spreading piece. When the transfer component moves to directly above the second bottom adsorption component, the transfer component and the second bottom adsorption component open the bag.

7. A packaging mechanism for filling a bag with a self-sealing closure according to claim 6, wherein The transfer assembly includes a two-axis moving assembly and a negative pressure plate. The two-axis moving assembly is mounted on a mounting plate and includes a translation component and a lifting component. The lifting component is mounted on the translation component, and the negative pressure plate is located below the lifting component. The translation component is mounted on the front of the mounting plate and is located above the self-sealing strip opening component and the bagging opening component. The negative pressure plate moves above the self-sealing strip opening component and the bagging opening component via the translation component. The lifting component enables the negative pressure plate to fit against the top of the self-sealing strip opening component and the bagging opening component. The bottom of the lifting component slides against the top of the negative pressure plate. An elastic component is located between the bottom of the lifting component and the negative pressure plate, and the elastic component is used for return to its original position.

8. The packaging mechanism of claim 7, wherein, The bottom of the negative pressure plate is equipped with a negative pressure suction head, and an L-shaped plate is installed on the top of the negative pressure plate. One end of the L-shaped plate is vertically upward. The elastic component is fitted onto the L-shaped plate and the lifting component. When the expansion piece opens, the upper expansion piece presses the bag onto the negative pressure plate. The movement of the expansion piece drives the movement of the negative pressure plate. The lower expansion piece presses the bag onto the top surface of the bag opening component.

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