Bag conveying mechanism with clamping device for high-speed hexahedron vacuum packaging machine

Abstract

The utility model discloses a bag feeding mechanism with a clamping device for a high-speed hexahedron vacuum packaging machine, which comprises a turnover rotating shaft, belt wheels are respectively mounted at two ends of one side of a square position of the rotating shaft, and the belt wheels are rotatably connected through a transmission belt. The upper end face and the lower end face of the transmission belt are connected with bag opening assemblies located on the other side of the rotating shaft through connecting bases respectively, each bag opening assembly comprises a left supporting arm and a right supporting arm which are symmetrically arranged, and bag opening plates and clamping plates are installed at the lower ends of the left supporting arms and the lower ends of the right supporting arms respectively. The relative movement of the left supporting arm and the right supporting arm is driven by an opening and closing air cylinder installed at the upper end of the rotating shaft. In the process that the material guide barrel is inserted into a packaging bag, the packaging bag is opened through the bag opening assembly, meanwhile, the packaging bag is stably clamped through the clamping plates, the packaging bag is effectively prevented from falling off, the material guide barrel is allowed to be inserted at a higher speed, and therefore the packaging quality is guaranteed, and meanwhile the packaging efficiency is improved. And the production efficiency of the packaging machine is obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of hexahedral vacuum packaging machine technology, specifically a bag feeding mechanism with clamping device for a high-speed hexahedral vacuum packaging machine. Background Technology

[0002] Hexahedral vacuum packaging bags (also known as accordion-edge or M-edge packaging bags) are widely used due to their unique structural design, which effectively protects products, extends shelf life, and optimizes storage space. However, when initially uninflated or unexpanded, the two opposing large faces of a hexahedral vacuum packaging bag are tightly fitted together. While this characteristic is beneficial for storage and transportation, it becomes a bottleneck for efficiency improvement in the automated bagging process of packaging machines. When the packaging machine's guide cylinder attempts to insert the bag to complete subsequent material filling and vacuum sealing, the tight fit between the large faces of the bag and the friction between the bag and the guide cylinder surface easily causes the bag to detach during insertion. Alternatively, to prevent detachment, the insertion speed of the guide cylinder must be reduced to a very low level, both of which directly lead to a significant decrease in the packaging machine's working efficiency.

[0003] The detachment of packaging bags not only wastes packaging materials and increases production costs, but can also cause equipment malfunctions due to improper movement of the bags inside the machine, affecting the continuity and safety of production. Conversely, an excessively slow insertion speed directly limits the output per unit time of the packaging machine, failing to meet the demands of modern industrial production for high efficiency and speed, a problem that is particularly prominent when facing large-scale production tasks.

[0004] In view of this, in order to overcome the above-mentioned shortcomings of the existing hexahedral vacuum packaging bags in the application of packaging machines, improve the working efficiency of packaging machines, and ensure the stability and reliability of the bagging process, this utility model proposes a bag feeding mechanism with a clamping device. Utility Model Content

[0005] The purpose of this invention is to overcome the defects and deficiencies of the existing technology and provide a bag feeding mechanism with a clamping device for a high-speed hexahedral vacuum packaging machine, thus solving various problems existing in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A bag feeding mechanism with a clamping device for a high-speed hexahedral vacuum packaging machine includes a rotatable rotating shaft. The rotating shaft is a rod with a square center and shaft-like ends. Two pulley seats are respectively installed at the two ends of one side of the square position of the rotating shaft. Pulleys are respectively installed on the pulley seats. The pulleys are rotatably connected to each other by a transmission belt. The upper and lower ends of the transmission belt are respectively connected to a bag supporting assembly located on the other side of the rotating shaft for guiding movement. The bag supporting assembly includes two symmetrically arranged left and right support arms. The lower ends of the left and right support arms are respectively installed with a bag supporting plate for opening the material bag and a rotatable clamping plate for clamping the material bag skin. The relative movement of the left and right support arms is driven by an opening and closing cylinder installed at the upper end of the rotating shaft.

[0008] The tail end of the opening and closing cylinder is fixedly mounted on the top of the rotating shaft by a cylinder mounting bracket. The connecting guide rod end of the opening and closing cylinder is connected to the lug on the left connecting seat. A guide rail is laid on the rear side of the rotating shaft. The connecting seat includes a left connecting seat and a right connecting seat. The left connecting seat slides with the guide rail through a left slider, and the right connecting seat slides with the guide rail through a left slider.

[0009] The cylinder mounting bracket includes a vertical plate, a support lug, a reinforcing rib, and a second mounting plate. The vertical plate is vertically welded to the upper rear side of the second mounting plate. The support lug is vertically welded to the upper front side of the vertical plate. The reinforcing rib is welded to the front side of the vertical plate and connected to the support lug and the second mounting plate. The second mounting plate is located at the lower end of the cylinder mounting bracket.

[0010] The left connecting seat includes a horizontal connecting plate, a vertical connecting plate, and lugs. The horizontal connecting plate is an irregularly shaped plate that is welded perpendicularly to the vertical connecting plate. The front side of the vertical connecting plate is connected to the left slider, and the rear side is connected to the mounting plate on the left support arm. Two lugs are welded to the horizontal connecting plate.

[0011] The right connecting seat includes a lower connecting plate, a connecting plate, and a support lug. The lower connecting plate is an irregularly shaped plate that is welded perpendicularly to the connecting plate. The front side of the connecting plate is connected to the right slider, and the rear side is connected to the mounting plate of the right support arm. The support lug is welded to the lower side of the lower connecting plate.

[0012] The left connecting seat is fixedly connected to the transmission belt via a pressure plate and a horizontal connecting plate, and the right connecting seat is fixedly connected to the transmission belt via another pressure plate and a lower connecting plate.

[0013] The left and right support arms have the same structure, each including a mounting plate. The mounting plate is a plate folded into a trapezoid in the middle with reinforcing ribs welded to its rear side. The upper end of the mounting plate is fixedly connected to the corresponding connecting seat. The lower end of the mounting plate is equipped with a bag-supporting plate. A flip-up clamping plate is installed on the rear side of the bag-supporting plate. The clamping plate is installed at one end of the clamping arm. The clamping arm is connected to the mounting plate through a shaft pin. The flipping of the clamping arm around the shaft pin is driven by the bag-clamping cylinder of its shaft. A bag-clamping skin is installed on the inner side of the clamping plate.

[0014] The lower end of the mounting plate is respectively equipped with dovetail recesses. Each dovetail recess is a plate with a threaded through hole on the rear side and is installed on the threaded through hole of the reinforcing rib on the rear side of the dovetail recess through a connector. A dovetail protrusion that mates with the dovetail recess is installed on the dovetail recess and is fixed by a locking component. A bag support plate is installed on the dovetail protrusion.

[0015] The bag-clamping cylinder is installed in front of the mounting plate. The guide rod end of the bag-clamping cylinder is connected to the middle position of the clamping arm. The tail of the bag-clamping cylinder is installed on the shaft seat, which is installed on the upper front side of the mounting plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model has a reasonable structural design. During the process of inserting the guide cylinder into the packaging bag, the bag-supporting component supports the packaging bag, while the clamping plate stably holds the packaging bag, effectively preventing the packaging bag from falling off and allowing the guide cylinder to insert at a higher speed. Thus, while ensuring packaging quality, it significantly improves the production efficiency of the packaging machine and provides strong technical support for automated packaging production in related industries. Attached Figure Description

[0018] Figure 1 This is a front view schematic diagram of the present invention;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 This is a bottom view of the present invention;

[0021] Figure 4 This is a left-side view of the present invention;

[0022] Figure 5 This is a right-side view of the present invention;

[0023] Figure 6 This is a rear view schematic diagram of the present invention;

[0024] Figure 7 This is an isometric three-dimensional schematic diagram of the present invention;

[0025] Figure 8 This is a three-dimensional view of the rear side of the present invention;

[0026] Figure 9 This is a schematic diagram of the structure of this utility model when used in conjunction with a material cylinder.

[0027] Figure label:

[0028] 1. Left support arm; 101. Left mounting plate; 102. Reinforcing rib; 103. Dovetail recess; 104. Locking element; 105. Dovetail protrusion; 106. Bag support plate; 107. Shaft seat; 108. Shaft pin; 109. Clamping arm; 110. Clamping plate; 111. Bag clamping skin; 112. Bag clamping cylinder; 2. Right support arm; 201. Right mounting plate; 3. Left connecting seat; 301. Horizontal connecting plate; 302. Vertical... 303. Connecting plate; 4. Support ear; 5. Right connecting seat; 6. Lower connecting plate; 7. Connecting plate; 8. Support ear; 9. Support ear; 10. Cylinder mounting bracket; 11. Vertical plate; 12. Support ear; 13. Reinforcing rib; 14. Mounting plate two; 15. Pressure plate; 16. Rotating shaft; 17. Pulley seat; 18. Pulley; 19. Transmission belt; 10. Opening and closing cylinder; 11. Guide rail; 12. Left slider; 13. Right slider. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0030] See appendix Figure 1-2 ;

[0031] A bag feeding mechanism with clamping device for a high-speed hexahedral vacuum packaging machine includes a rotatable rotating shaft 7, which is a rod with a square middle and shaft-like ends. Two pulley seats 8 are respectively installed at the two ends of one side of the square position of the rotating shaft 7. Pulleys 9 are respectively installed on the pulley seats 8. The pulleys 9 are rotatably connected to each other by a transmission belt 10. The upper and lower end faces of the transmission belt 10 are respectively connected by connecting seats to a bag supporting assembly located on the other side of the rotating shaft 7. The bag supporting assembly includes two symmetrically arranged left support arm 1 and right support arm 2. The lower ends of the left support arm 1 and right support arm 2 are respectively installed with a bag supporting plate 106 for opening the material bag and a rotatable clamping plate 110 for clamping the material bag skin. The relative movement of the left support arm 1 and right support arm 2 is driven by an opening and closing cylinder 11 installed at the upper end of the rotating shaft 7.

[0032] Furthermore, the tail of the opening / closing cylinder 11 is fixedly mounted above the rotating shaft via the cylinder mounting bracket 5. The connecting guide rod end of the opening / closing cylinder 11 is connected to the lug 303 on the left connecting seat 3. A guide rail 12 is laid on the rear side of the rotating shaft 7. The connecting seats include a left connecting seat 3 and a right connecting seat 4. The left connecting seat 3 is guided and slidably engaged with the guide rail 12 via a left slider 13, and the right connecting seat 4 is guided and slidably engaged with the guide rail 12 via a left slider 13. The cylinder mounting bracket 5 includes a vertical plate 501, a lug 502, a reinforcing rib 503, and a second mounting plate 504. The vertical plate 501 is vertically welded to the upper rear side of the second mounting plate 504. The lug 502 is vertically welded to the upper front side of the vertical plate 501. The reinforcing rib 503 is welded to the front side of the vertical plate 501 and connected to the lug 502 and the second mounting plate 504. The second mounting plate 504 is located at the lower end of the cylinder mounting bracket 5.

[0033] Furthermore, the left connecting seat 3 includes a horizontal connecting plate 301, a vertical connecting plate 302, and a support ear 303. The horizontal connecting plate 301 is an irregularly shaped plate that is vertically welded to the vertical connecting plate 302. The front side of the vertical connecting plate 302 is connected to the left slider 13, and the rear side is connected to the mounting plate 101 on the left support arm 1. Two supports 303 are welded to the horizontal connecting plate 301. The right connecting seat 4 includes a lower connecting plate 401, a connecting plate 402, and a support ear 403. The lower connecting plate 401 is an irregularly shaped plate that is vertically welded to the connecting plate 402. The front side of the connecting plate 402 is connected to the right slider 14, and the rear side is connected to the mounting plate of the right support arm. The support ear 403 is welded to the lower side of the lower connecting plate 401. The left connecting seat 3 is fixedly connected to the transmission belt 10 through the pressure plate 6 and the horizontal connecting plate 301, and the right connecting seat 4 is fixedly connected to the transmission belt 10 through another pressure plate 6 and the lower connecting plate 401.

[0034] Furthermore, the left support arm 1 and the right support arm 2 have the same structure, each including a mounting plate. The mounting plate 101 is a plate folded into a trapezoid in the middle, with a reinforcing rib 102 welded to its rear side. The upper end of the mounting plate is fixedly connected to the corresponding connecting seat. The lower end of the mounting plate 101 is respectively equipped with a bag support plate 106. A flip-up clamping plate 110 is installed on the rear side of the bag support plate 106. The clamping plate 110 is installed at one end of the clamping arm 109. The clamping arm 109 is connected to the mounting plate 101 through a shaft pin 108. The flipping of the clamping arm 109 around the shaft pin 108 is driven by the bag clamping cylinder 112 of its shaft. A bag clamping skin 111 is installed on the inner side of the clamping plate 110. Dovetail recesses 103 are respectively installed on the lower end of the mounting plate 101. The dovetail recess 103 is a plate with a threaded through hole on the rear side, and is installed on the threaded through hole of the reinforcing rib on the rear side of the dovetail recess 103 through a connector. A dovetail protrusion 105 is installed on the dovetail recess 103 and is fixed by a locking member 104. A bag support plate 106 is installed on the dovetail protrusion 105. The bag clamping cylinder 112 is installed in front of the mounting plate 101. The guide rod end of the bag clamping cylinder 112 is connected to the middle position of the clamping arm 109. The tail of the bag clamping cylinder 112 is installed on the shaft seat 107, which is installed on the upper front side of the mounting plate 101.

[0035] During operation, the "material bag" is in a horizontal position with its opening open. At this time, the guide rod of the bag clamping cylinder 112 retracts, causing the clamping arm 109 to rotate around the rotating shaft 108, causing the clamping plate 110 and the bag clamping skin 111 to flip outward (the left and right support arms move in the same direction). At this time, the guide rod of the opening and closing cylinder 11 retracts, causing the connecting seat 3 to move from left to right, driving the transmission belt 10 to rotate clockwise, causing the right connecting seat 4 to move from right to left, driving the left support arm 1 to move from left to right, and simultaneously driving the right support arm 2 to move from right to left until the left and right support arms move towards each other to the middle position. At this time, (see "Bag Feeding Mechanism Diagram") the rotating shaft 7 rotates, inserting the bag support plate 106 into the opening of the material bag. At this time, the guide rod of the opening and closing cylinder 11 extends, causing the connecting seat 3 to move from right to left. The transmission belt 10 rotates counterclockwise, causing the right connecting seat 4 to move from left to right, and the left support arm 1 to move from right to left, while the right support arm 2 moves from left to right. When the left and right support arms move in opposite directions, the bag support plate 106 supports the two sides of the material bag. At this time, the guide rod of the bag clamping cylinder 112 extends, causing the clamping arm 109 to rotate around the rotating shaft 108, causing the bag clamping skin 111 on the clamping plate 110 to flip towards the bag support plate 106, so that the bag clamping skin 111 clamps the outside of the bag support plate 106, tightening the side of the material bag (the left and right support arms are the same). At this time, referring to the "bag feeding mechanism schematic diagram", the bag feeding mechanism flips upward and sends the material bag to the lower discharge port of the "guide cylinder". At this time, the "guide cylinder" is inserted into the material bag from top to bottom.

[0036] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0037] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A bag feeding mechanism with a clamping device for a high-speed hexahedral vacuum packaging machine, characterized in that: It includes a rotatable shaft (7), which is a rod with a square middle and shaft-like ends. Two pulley seats (8) are installed at the two ends of the square position of the shaft (7). Pulleys (9) are installed on the pulley seats (8). The pulleys (9) are rotatably connected by a transmission belt (10). The upper and lower ends of the transmission belt (10) are connected by connecting seats to a bag support assembly located on the other side of the shaft (7). The bag support assembly includes two symmetrically arranged left support arm (1) and right support arm (2). The lower ends of the left support arm (1) and right support arm (2) are respectively equipped with a bag support plate (106) for opening the material bag and a rotatable clamping plate (110) for clamping the material bag skin. The relative movement of the left support arm (1) and right support arm (2) is driven by an opening and closing cylinder (11) installed at the upper end of the shaft (7).

2. The bag feeding mechanism with clamping device for a high-speed hexahedral vacuum packaging machine according to claim 1, characterized in that: The tail of the opening and closing cylinder (11) is fixedly mounted above the rotating shaft by the cylinder mounting bracket (5). The connecting guide rod end of the opening and closing cylinder (11) is connected to the lug (303) on the left connecting seat (3). The rear side of the rotating shaft (7) is provided with a guide rail (12). The connecting seat includes a left connecting seat (3) and a right connecting seat (4). The left connecting seat (3) is guided and slidably engaged with the guide rail (12) by the left slider (13). The right connecting seat (4) is guided and slidably engaged with the guide rail (12) by the left slider (13).

3. The bag feeding mechanism with clamping device for a high-speed hexahedral vacuum packaging machine according to claim 2, characterized in that: The cylinder mounting bracket (5) includes a vertical plate (501), a support lug (502), a reinforcing rib (503), and a second mounting plate (504). The vertical plate (501) is vertically welded to the upper rear side of the second mounting plate (504). The support lug (502) is vertically welded to the upper front side of the vertical plate (501). The reinforcing rib (503) is welded to the front side of the vertical plate (501) and connected to the support lug (502) and the second mounting plate (504). The second mounting plate (504) is located at the lower end of the cylinder mounting bracket (5).

4. The bag feeding mechanism with clamping device for a high-speed hexahedral vacuum packaging machine according to claim 2, characterized in that: The left connecting seat (3) includes a horizontal connecting plate (301), a vertical connecting plate (302), and a support ear (303). The horizontal connecting plate (301) is an irregularly shaped plate that is vertically welded to the vertical connecting plate (302). The front side of the vertical connecting plate (302) is connected to the left slider (13), and the rear side is connected to the mounting plate (101) on the left support arm (1). There are two supports (303) welded to the horizontal connecting plate (301).

5. The bag feeding mechanism with clamping device for a high-speed hexahedral vacuum packaging machine according to claim 2, characterized in that: The right connecting seat (4) includes a lower connecting plate (401), a connecting plate (402), and a support ear (403). The lower connecting plate (401) is an irregularly shaped plate that is vertically welded to the connecting plate (402). The front side of the connecting plate (402) is connected to the right slider (14), and the rear side is connected to the mounting plate of the right support arm. The support ear (403) is welded to the lower side of the lower connecting plate (401).

6. The bag feeding mechanism with clamping device for a high-speed hexahedral vacuum packaging machine according to claim 2, characterized in that: The left connecting seat (3) is fixedly connected to the transmission belt (10) through the pressure plate (6) and the horizontal connecting plate (301), and the right connecting seat (4) is fixedly connected to the transmission belt (10) through another pressure plate (6) and the lower connecting plate (401).

7. The bag feeding mechanism with clamping device for a high-speed hexahedral vacuum packaging machine according to claim 1, characterized in that: The left support arm (1) and the right support arm (2) have the same structure and each includes a mounting plate. The mounting plate (101) is a plate folded into a trapezoid in the middle and has a reinforcing rib (102) welded to its rear side. The upper end of the mounting plate is fixedly connected to the corresponding connecting seat. The lower end of the mounting plate (101) is equipped with a bag support plate (106). The rear side of the bag support plate (106) is equipped with a flip-up clamping plate (110). The clamping plate (110) is installed at one end of the clamping arm (109). The clamping arm (109) is connected to the mounting plate (101) through a shaft pin (108). The flipping of the clamping arm (109) around the shaft pin (108) is driven by the clamping cylinder (112) of its mountain house. The inner side of the clamping plate (110) is equipped with a clamping skin (111).

8. The bag feeding mechanism with clamping device for a high-speed hexahedral vacuum packaging machine according to claim 7, characterized in that: The lower end of the mounting plate (101) is respectively equipped with a dovetail recess (103). The dovetail recess (103) is a plate with a threaded through hole on the rear side and is installed on the threaded through hole of the reinforcing rib on the rear side of the dovetail recess (103) by a connector. The dovetail recess (103) is equipped with a dovetail protrusion (105) that mates with it and is fixed by a locking member (104). The dovetail protrusion (105) is equipped with a bag support plate (106).

9. The bag feeding mechanism with clamping device for a high-speed hexahedral vacuum packaging machine according to claim 7, characterized in that: The bag clamping cylinder (112) is installed in front of the mounting plate (101). The guide rod end of the bag clamping cylinder (112) is connected to the middle position of the clamping arm (109). The tail of the bag clamping cylinder (112) is installed on the shaft seat (107). The shaft seat (107) is installed on the upper front side of the mounting plate (101).

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