Bag opening device for a bagging machine

Abstract

A kind of opening device of bagging machine. It includes frame body, and also includes: opening bag clamping mechanism, be located on frame body, the opening bag clamping mechanism include the opening bag clamping component for clamping bag;The opening bag clamping component includes two corresponding settings for clamping bag clamping piece;At least one set of clamping piece is slidably engaged relative to frame body;Bag suction mechanism, be located on frame body, for bag with opening suction open;The bag suction mechanism includes bag suction component, and the bag suction component has first position when installation and second position after the side of bag is sucked to vertical clamping piece sliding direction movement;Blowing mechanism, be located on frame body, for blowing to open bag so that bag is inflated to facilitate feeding;Slide rail, the clamping piece is located on slide rail, and at least one set of clamping piece is slidably engaged relative to frame body.The utility model also has the advantages of convenient assembly, reliable action, long service life etc..

Description

Technical Field

[0001] This utility model relates to the field of bag-feeding packaging machine equipment, specifically to a bag-opening device for a bag-feeding machine. Background Technology

[0002] Packaging machinery refers to machines capable of completing all or part of the packaging process for products and commodities. Using machinery to package products can improve productivity, reduce labor intensity, meet the needs of large-scale production, and satisfy hygiene requirements. Packaging machines are machines that wrap products, providing protection and aesthetic appeal. In the packaging and bagging process of wet wipes, face masks, medicated patches, food, etc., it is usually necessary to place the items into bags and then add a solution through filling. Because a solution is typically added, it is best to feed the bags vertically.

[0003] Existing bag-type packaging machines primarily transfer packaging bags sequentially to the bag opening station, filling station, and heat sealing station. After processing, the bags are unloaded at the unloading station. Often, factories manually transfer the packaging bags before adding liquid to the feeding tank. Since the bags are usually three-side sealed during feeding, the inner walls are typically sealed, making it difficult to open the bag opening. Existing bag-opening devices require multiple drive components for transmission and suction cups for opening, resulting in a complex structure, unreliable transmission, and significant space requirements, hindering the installation of other devices. Utility Model Content

[0004] To address the problems of complex structure and large size of existing bag-opening devices in the background art, this utility model provides a bag-opening device for a bag feeding machine.

[0005] The technical solution of this utility model is: a bag opening device for a bag feeding machine, including a frame, and further including: A bag-opening clamping mechanism is mounted on a frame. The bag-opening clamping mechanism includes a bag-opening clamping assembly for clamping bags. The bag-opening clamping assembly includes two clamping members that are correspondingly arranged for clamping bags. At least one set of clamping members slides relative to the frame. A suction bag mechanism, mounted on a frame, is used to suck open bags with openings; the suction bag mechanism includes a suction bag assembly, which has a first position when installed and a second position after sucking on the side of the bag and moving in the direction of sliding towards the vertical clamping member; An air blowing mechanism, located on the frame, is used to blow air into the open bag to make the bag inflated for easy feeding. The slide rail, wherein the clamping member is disposed on the slide rail, and at least one set of clamping members slides and engages with the frame.

[0006] As a further improvement of this utility model, the bag opening clamping assembly has two sets, and the bag suction mechanism is located between the two sets of bag opening clamping assemblies; each set of bag opening clamping assemblies includes two clamping members correspondingly arranged for clamping the bag, and the two sets of bag opening clamping assemblies have a first position when installed and a second position where the clamping members slide relative to the frame after clamping the bag.

[0007] As a further improvement of this utility model, at least one of the two corresponding clamping members for clamping the bag is provided with a top rod and an elastic member, wherein the elastic member abuts against the top rod and has a tendency to drive the top rod towards the other clamping member.

[0008] As a further improvement to this utility model, it also includes: The drive cam is mounted on the drive shaft; The swing arm transmission mechanism is attached to the drive cam and is driven to rotate by the drive cam; The first swing arm mechanism is connected to the first swing arm mechanism and drives the clamping member to slide relative to the frame through the first swing arm mechanism; The second swing arm mechanism is connected to the swing arm transmission mechanism and drives the position change of the suction bag assembly through the second swing arm mechanism.

[0009] As a further improvement of this utility model, the clamping member is mounted on the slide rail via a slider, and the swing arm transmission mechanism includes a swing arm shaft and a first swing arm mounted on the swing arm shaft and linked to the swing arm shaft. The first swing arm is connected to the bag opening shaft via a first swing rod mechanism, and the bag opening shaft is connected to the slider via a swing rod assembly and drives the clamping member to slide relative to the slide rail via the slider.

[0010] As a further improvement of this utility model, the swing arm transmission mechanism includes a second swing arm, which includes a first transmission arm adapted to the drive cam and a second transmission arm for driving the suction bag assembly to move. The second transmission arm is connected to the pull rod assembly through a second swing rod mechanism and drives the suction bag assembly to change position through the pull rod assembly.

[0011] As a further improvement of this utility model, it also includes a suction bag frame, on which a guide rod and a guide block are provided, the suction bag assembly is disposed on the guide block, the pull rod assembly is connected to the guide rod and drives the corresponding suction bag assembly to move through the guide rod, and the blowing mechanism is disposed on the suction bag frame.

[0012] As a further improvement of this utility model, the suction bag assembly includes at least two suction components, which are arranged in pairs and cooperate with each other to suck up the side of the bag and move it in the direction of sliding of the vertical clamping component; the blowing mechanism is located between the two suction components, and the suction components are made of rubber material.

[0013] As a further improvement of this utility model, it also includes a clamping frame, and the slide rail is disposed on the clamping frame; there are two clamping frames, and the two clamping frames have a first position when installed and a second position where they are close to each other so that the two corresponding clamping members clamp the bag.

[0014] As a further improvement to this utility model, it also includes: Clamping drive shaft: connected to the drive shaft and driven to rotate by the drive shaft; A clamping transmission assembly is provided, wherein the clamping transmission shaft is connected to the clamping frame through the clamping transmission assembly and drives the position of the clamping frame to change; the clamping transmission assembly includes a clamping swing arm disposed on the clamping transmission shaft and driven by the clamping transmission shaft, and a clamping pull rod for pulling the clamping frame.

[0015] The beneficial effects of this utility model are as follows: It incorporates a bag-opening clamping mechanism, which, after clamping the bag and allowing it to slide relative to the clamping member, makes it easier to open the bag's opening, facilitating the suction mechanism to suck up the two sides of the bag and separate them to form an opening. The air-blowing device allows air to be blown into the bag, causing it to inflate and facilitating material feeding. This results in a simple product structure, convenient and reliable transmission, and a small size. This utility model also boasts advantages such as easy assembly, reliable operation, and long service life. Attached Figure Description

[0016] Appendix Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0017] Appendix Figure 2 This is a schematic diagram of the structure from another perspective of an embodiment of the present invention.

[0018] Appendix Figure 3 This is a schematic diagram of the bag-opening clamping mechanism in an embodiment of the present invention.

[0019] Appendix Figure 4 For the appendix Figure 3 A schematic diagram of the structure from another direction.

[0020] Appendix Figure 5 For the appendix Figure 3 A schematic diagram of the explosion structure.

[0021] Appendix Figure 6 This is a schematic diagram of the structure of the clamping frame in an embodiment of this utility model.

[0022] In the diagram, 1. Frame; 2. Bag opening and clamping mechanism; 21. Bag opening and clamping assembly; 22. Clamping component; 221. Top rod; 222. Elastic component; 3. Bag suction mechanism; 31. Bag suction assembly; 311. Air suction component; 32. Bag suction frame; 33. Guide rod; 34. Guide block; 4. Air blowing mechanism; 5. Slide rail; 51. Slider; 6. Drive cam; 61. Swing arm transmission mechanism; 611. Swing arm shaft; 612. First swing arm; 613. Second swing arm; 6131. ​​First transmission arm; 6132. Second transmission arm; 62. First swing rod mechanism; 621. Bag opening shaft; 622. Swing rod assembly; 63. Second swing rod mechanism; 631. Pull rod assembly; 7. Clamping frame; 71. Clamping transmission shaft; 72. Clamping transmission assembly; 73. Clamping swing arm; 74. Clamping pull rod; 8. Drive shaft. Detailed Implementation

[0023] The embodiments of this utility model will be further described below with reference to the accompanying drawings: Depend on Figure 1 Combination Figure 2-6 As shown, a bag-opening device for a bag-feeding machine includes a frame 1, and further includes: A bag opening and clamping mechanism 2 is provided on the frame 1. The bag opening and clamping mechanism 2 includes a bag opening and clamping assembly 21 for clamping the bag. The bag opening and clamping assembly 21 includes two clamping members 22 correspondingly provided for clamping the bag. At least one set of clamping members 22 slides and engages with the frame 1. The suction bag mechanism 3 is mounted on the frame 1 and is used to suck open a bag with an opening. The suction bag mechanism 3 includes a suction bag assembly 31, which has a first position when installed and a second position when it sucks on the side of the bag and moves in the sliding direction of the vertical clamp 22. The air blowing mechanism 4 is located on the frame 1 and is used to blow air into the open bag to make the bag inflated for easy feeding. The slide rail 5, on which the clamping member 22 is mounted, allows at least one set of clamping members 22 to slide relative to the frame 1. The beneficial effects of this invention are: it includes a bag-opening clamping mechanism; after the bag is clamped by the clamping member and slides relative to it, the bag opening is easier to open, facilitating the suction mechanism to suck up and separate the two sides of the bag to form an opening; the air blowing device allows air to be blown into the bag, causing the suction mechanism to inflate the bag for easier material feeding. This results in a simple product structure, convenient and reliable transmission, and small size. This invention also has advantages such as easy assembly, reliable operation, and long service life.

[0024] The bag-opening clamping assembly 21 has two sets, and the bag suction mechanism 3 is located between the two sets of bag-opening clamping assemblies 21. Each set of bag-opening clamping assemblies 21 includes two corresponding clamping members 22 for clamping the bag. The two sets of bag-opening clamping assemblies 21 have a first position during installation and a second position where the clamping members 22 slide relative to the frame 1 after clamping the bag. In fact, the bag-opening clamping mechanism of this utility model can be set according to the number of bags processed each time. In fact, this utility model can realize the simultaneous processing of two bags. Therefore, two bag-opening clamping mechanisms can be set. The bag-opening clamping mechanism can be set with two sets of bag-opening clamping assemblies. Each set of bag-opening clamping assemblies can be set with two clamping members, that is, the bag-opening clamping mechanism includes four clamping members, which can reliably clamp the bag and prevent the bag from shifting during operation. In practice, the four clamping members of the bag-opening clamping mechanism can all move inward (i.e., clamping members in the same row move closer to each other), or only two clamping members can move closer to the clamping members in their respective rows, thus creating a pleated effect on the bag, making it easier for the suction mechanism to suck open the bag and open the bag opening. In this utility model, each group can use only two clamping members to move, that is, this utility model uses two bag-opening shafts to drive the movement of two groups of bag-opening clamping mechanisms, simplifying the transmission and reducing the number of parts.

[0025] At least one of the two corresponding clamping members 22 for holding the bag is provided with a top rod 221 and an elastic member 222. The elastic member 222 abuts against the top rod 221 and has a tendency to drive the top rod 221 toward the other clamping member 22. This makes the product clamping reliable, the elastic member increases the clamping force, avoids damage to parts due to excessive movement, and can cooperate with other actions to achieve continuous processing more reliably.

[0026] This utility model also includes: The drive cam 6 is mounted on the drive shaft 8; The swing arm transmission mechanism 61 is attached to the drive cam 6 and is driven to rotate by the drive cam 6. The first swing arm mechanism 62, wherein the swing arm transmission mechanism 61 is connected to the first swing arm mechanism 62 and drives the clamping member 22 to slide relative to the frame 1 through the first swing arm mechanism 62; The second swing arm mechanism 63 is connected to the swing arm transmission mechanism 61, and drives the position change of the suction bag assembly 31 through the second swing arm mechanism 63. This allows the product to be reliably driven by a single drive cam, resulting in a simple structure and convenient and reliable transmission.

[0027] The clamping member 22 is mounted on the slide rail 5 via a slider 51. The swing arm transmission mechanism 61 includes a swing arm shaft 611 and a first swing arm 612 mounted on and linked to the swing arm shaft 611. The first swing arm 612 is connected to the bag opening shaft 621 via a first swing rod mechanism 62. The bag opening shaft 621 is connected to the slider 51 via the swing rod assembly 622, and the slider 51 drives the clamping member 22 to slide relative to the slide rail 5. This ensures reliable product operation, a simple structure, convenient and reliable transmission, and facilitates the horizontal sliding of the clamping member for easy bag opening.

[0028] The swing arm transmission mechanism 61 includes a second swing arm 613, which comprises a first transmission arm 6131 adapted to the drive cam 6 and a second transmission arm 6132 for driving the suction bag assembly 31. The second transmission arm 6132 is connected to the pull rod assembly 631 via a second swing rod mechanism 63 and drives the suction bag assembly 31 to change position via the pull rod assembly 631. This ensures reliable product operation, a simple structure, and convenient and reliable transmission, thus reliably driving the suction bag assembly to move, facilitating bag opening. Specifically, this utility model also includes a suction bag frame 32, which is provided with a guide rod 33 and a guide block 34. The suction bag assembly 31 is mounted on the guide block 34, and the pull rod assembly 631 is connected to the guide rod 33 and drives the corresponding suction bag assembly 31 to move via the guide rod 33. The blowing mechanism 4 is mounted on the suction bag frame 32. The suction bag assembly can move synchronously or in a staggered manner with the clamp. That is, the clamp moves inward to wrinkle the bag, and the suction bag assembly then pulls the bag open to both sides (similar to the direction of movement perpendicular to the clamp), which can open the bag quickly and reliably.

[0029] The bag suction assembly 31 includes at least two suction components 311, arranged in pairs and cooperating to suction the bag from the side and move it in the sliding direction of the vertical clamping member 22. The blowing mechanism 4 is located between the two suction components 311, which are made of rubber. In this invention, the bag suction assembly can move synchronously with the clamping clamp, thus improving product efficiency and increasing machine speed. This invention uses the elastic deformation of the suction components (rubber parts) and the elasticity of the clamping member's top rod (spring) to cooperate, avoiding damage to parts due to excessive movement, while improving machine speed and fault tolerance, and achieving more reliable continuous processing.

[0030] This utility model also includes a clamping frame 7, on which the slide rail 5 is disposed; there are two clamping frames 7, each having a first position for installation and a second position where they are brought together so that two corresponding clamping elements 22 clamp the bag. Typically, there are two clamping frames, with two corresponding clamping elements disposed on different clamping frames. In practice, both clamping frames move inward simultaneously to clamp the bag, resulting in faster speed and improved machine production efficiency, which is the preferred method of this utility model. Alternatively, one clamping frame can move closer to the other to clamp the bag.

[0031] This utility model also includes: Clamping drive shaft 71: connected to drive shaft 8 and driven to rotate by drive shaft 8; The clamping transmission assembly 72 connects the clamping transmission shaft 71 to the clamping frame 7 and drives the clamping frame 7 to change position. The clamping transmission assembly 72 includes a clamping swing arm 73 mounted on the clamping transmission shaft 71 and driven by the shaft, and a clamping pull rod 74 for pulling the clamping frame 7. This structure makes the product simple and provides convenient and reliable transmission.

[0032] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0034] Please note to all technical personnel: Although this utility model has been described according to the specific embodiments above, the inventive concept of this utility model is not limited to this utility model. Any modification that utilizes the inventive concept will be included within the scope of protection of this utility model patent.

Claims

1. A bag-opening device for a bag-feeding machine, comprising a frame (1), characterized in that: Also includes: The bag opening clamping mechanism (2) is provided on the frame (1). The bag opening clamping mechanism (2) includes a bag opening clamping assembly (21) for clamping the bag. The bag opening clamping assembly (21) includes two clamping parts (22) correspondingly provided for clamping the bag. At least one set of clamping parts (22) slides relative to the frame (1). The suction bag mechanism (3) is mounted on the frame (1) and is used to suck open a bag with an opening. The suction bag mechanism (3) includes a suction bag assembly (31), which has a first position when installed and a second position when it sucks the side of the bag and moves in the sliding direction of the vertical clamp (22). An air blowing mechanism (4) is installed on the frame (1) and is used to blow air into the open bag to make the bag inflated for easy feeding. The slide rail (5) has clamping members (22) mounted on it, and at least one set of clamping members (22) slides and engages with the frame (1).

2. The bag opening device of a bag feeding machine according to claim 1, characterized in that... The bag opening clamping assembly (21) has two sets, and the bag suction mechanism (3) is located between the two sets of bag opening clamping assemblies (21). Each set of bag opening clamping assembly (21) includes two corresponding clamping parts (22) for clamping the bag. The two sets of bag opening clamping assemblies (21) have a first position when installed and a second position when the clamping parts (22) clamp the bag and slide relative to the frame (1).

3. The bag opening device of a bag feeding machine according to claim 2, characterized in that... At least one of the two corresponding clamping members (22) for clamping the bag is provided with a top rod (221) and an elastic member (222), wherein the elastic member (222) abuts against the top rod (221) and has a tendency to drive the top rod (221) toward the other clamping member (22).

4. The bag opening device of a bag feeding machine according to claim 1, characterized in that... Also includes: A drive cam (6) is mounted on a drive shaft (8); The swing arm transmission mechanism (61) is attached to the drive cam (6) and is driven to rotate by the drive cam (6); The first swing arm mechanism (62) is connected to the first swing arm mechanism (61) and drives the clamping member (22) to slide relative to the frame (1) through the first swing arm mechanism (62); The second swing arm mechanism (63) is connected to the swing arm transmission mechanism (61) and drives the position of the suction bag assembly (31) to change through the second swing arm mechanism (63).

5. The bag opening device for a bag feeding machine according to claim 4, characterized in that... The clamping member (22) is mounted on the slide rail (5) via a slider (51). The swing arm transmission mechanism (61) includes a swing arm shaft (611) and a first swing arm (612) mounted on the swing arm shaft (611) and linked to the swing arm shaft (611). The first swing arm (612) is connected to the bag opening shaft (621) via a first swing rod mechanism (62). The bag opening shaft (621) is connected to the slider (51) via a swing rod assembly (622) and drives the clamping member (22) to slide relative to the slide rail (5) via the slider (51).

6. The bag opening device for a bag feeding machine according to claim 4, characterized in that... The swing arm transmission mechanism (61) includes a second swing arm (613), which includes a first transmission arm (6131) adapted to the drive cam (6) and a second transmission arm (6132) for driving the suction bag assembly (31) to move. The second transmission arm (6132) is connected to the pull rod assembly (631) through the second swing rod mechanism (63) and drives the suction bag assembly (31) to change position through the pull rod assembly (631).

7. The bag opening device for a bag feeding machine according to claim 6, characterized in that... It also includes a suction bag frame (32), on which a guide rod (33) and a guide block (34) are provided. The suction bag assembly (31) is located on the guide block (34). The pull rod assembly (631) is connected to the guide rod (33) and drives the corresponding suction bag assembly (31) to move through the guide rod (33). The blowing mechanism (4) is located on the suction bag frame (32).

8. The bag opening device of a bag feeding machine according to claim 1, characterized in that... The suction bag assembly (31) includes at least two suction components (311), which are arranged in pairs and cooperate with each other to suck up the side of the bag and move in the sliding direction of the vertical clamp (22); the blowing mechanism (4) is located between the two suction components (311), and the suction components (311) are made of rubber material.

9. The bag opening device of a bag feeding machine according to claim 1, characterized in that... It also includes a clamping frame (7), and the slide rail (5) is provided on the clamping frame (7); there are two clamping frames (7), and the two clamping frames (7) have a first position when installed and a second position where they are close to each other so that the two corresponding clamping parts (22) clamp the bag.

10. The bag opening device of a bag feeding machine according to claim 9, characterized in that... Also includes: Clamping drive shaft (71): connected to drive shaft (8) and driven to rotate by drive shaft (8); The clamping transmission assembly (72) is connected to the clamping frame (7) via the clamping transmission assembly (72) and drives the position of the clamping frame (7) to change. The clamping transmission assembly (72) includes a clamping swing arm (73) mounted on the clamping transmission shaft (71) and driven by the clamping transmission shaft (71) and a clamping pull rod (74) for pulling the clamping frame (7).

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