A solid caustic soda packaging machine bag feeding mechanism

Abstract

This application discloses a bag feeding mechanism for a solid alkali packaging machine, including a packaging machine support, a bag feeding tray, a bag picking and feeding assembly, a bag opening assembly, a bag supporting assembly, and a bag filling assembly. The bag feeding tray is connected to the packaging machine support and holds packaging bags on it. The bag picking and feeding assembly is located on the side of the bag feeding tray where the packaging bags are placed and is configured to move the packaging bags to the bag filling position. The bag opening assembly is located at the bag filling position, with one end connected to the packaging machine support and the other end configured to abut against the packaging bag. One end of the bag supporting assembly is connected to the packaging machine support, and the other end is located at the bag filling position, and the other end of the bag supporting assembly can extend into the packaging bag and open it. One end of the bag filling assembly is connected to the packaging machine support, and the other end of the bag filling assembly is configured to fix the packaging bag. This achieves full automation of the entire process from bag picking, bag feeding, bag opening, bag supporting to bag filling, reducing occupational hazards and significantly improving packaging efficiency and equipment reliability.

Description

Technical Field

[0001] This application relates to the field of packaging equipment technology, and in particular to a bag feeding mechanism for a solid alkali packaging machine. Background Technology

[0002] In the solid alkali production sector, the packaging of finished caustic soda flakes has long adopted a semi-automatic packaging mode: operators need to manually put the packaging bag into the feeding port, and after triggering the packaging process, they also need to fix the inner bag closure, adjust the position of the outer bag, and send it into the sewing machine in the solid alkali dust environment.

[0003] During this process, personnel are directly exposed to a highly corrosive alkaline dust environment, posing serious occupational health risks (such as respiratory burns and skin corrosion). Furthermore, existing equipment has a low level of automation, failing to achieve automatic bag handling, opening, and positioning, becoming a core bottleneck restricting safe production. Utility Model Content

[0004] This application provides a bag feeding mechanism for a solid alkali packaging machine, solving the safety risks posed by personnel exposure to solid alkali dust during manual bagging operations and the technical problems of semi-automatic packaging machines being unable to continuously complete bag feeding operations. It achieves full automation from bag picking, bag feeding, bag opening, bag opening to bag filling, significantly improving packaging efficiency and equipment reliability while reducing occupational hazards.

[0005] This utility model provides a bag feeding mechanism for a solid alkali packaging machine, including a packaging machine support, a bag feeding tray, a bag picking and feeding assembly, a bag opening assembly, a bag supporting assembly, and a bag filling assembly. The bag feeding tray is connected to the packaging machine support and a packaging bag is placed on it. The bag picking and feeding assembly is located on the side of the bag feeding tray where the packaging bag is placed and is configured to move the packaging bag to the bag filling position. The bag opening assembly is located at the bag filling position, with one end connected to the packaging machine support and the other end configured to abut against the packaging bag. One end of the bag supporting assembly is connected to the packaging machine support, and the other end is located at the bag filling position, and the other end of the bag supporting assembly can extend into the packaging bag and open it. One end of the bag filling assembly is connected to the packaging machine support, and the other end of the bag filling assembly is configured to fix the packaging bag.

[0006] In one possible implementation, the bag-feeding assembly includes a bag-feeding suction cup, a suction cup fitting, a first driving member, a second driving member, and a crossbeam; the crossbeam is connected to the packaging machine support; the fixed end of the first driving member is connected to the second driving member, the output end of the first driving member is connected to one end of the suction cup fitting, and the other end of the suction cup fitting is connected to the bag-feeding suction cup; the bag-feeding suction cup is configured to pick up the packaging bag; the output end of the second driving member is connected to the fixed end of the first driving member, and the fixed end of the second driving member is connected to the crossbeam.

[0007] In one possible implementation, the bag opening assembly includes a third drive unit, a bag opening distributor, an upper bag opening suction cup, a lower bag suction fitting, and a lower bag opening suction cup; the fixed end of the third drive unit is connected to the crossbeam, and the output end of the third drive unit is connected to the bag opening distributor; the upper bag opening suction cup is connected to the side of the bag opening distributor near the packaging bag; one end of the lower bag suction fitting is connected to the packaging machine bracket; the lower bag opening suction cup and the upper bag opening suction cup are arranged opposite to each other.

[0008] In one possible implementation, the bag-supporting assembly includes a fourth drive member, a fifth drive member, a first bag-supporting rod, a second bag-supporting rod, a bag-supporting plate, a bag-supporting shaft, a bag-opening bracket, a diagonal lever, a sixth drive member, and a cylinder connector; the bag-opening bracket is connected to the packaging machine bracket, the bag-supporting shaft is rotatably connected to the bag-opening bracket, and the bag-supporting shaft is arranged parallel to the crossbeam; the fixed end of the fourth drive member is connected to the packaging machine bracket, the output end of the fourth drive member is connected to the fixed end of the fifth drive member, the output end of the fifth drive member is hinged to one end of the bag-supporting plate, and the other end of the bag-supporting plate is connected to the bag-supporting shaft; the first bag-supporting rod and the second bag-supporting rod... The packaging bag is spaced apart, with one end of the first bag-supporting rod rotatably connected to the outside of the bag-supporting shaft, and one end of the second bag-supporting rod rotatably connected to the outside of the bag-supporting shaft. The other ends of both the first and second bag-supporting rods are configured to extend into the packaging bag and open it. A sixth driving member is connected between the first and second bag-supporting rods. The fixed end of the sixth driving member is connected to the second bag-supporting rod, and the output end of the sixth driving member is connected to one end of the cylinder connector. The other end of the cylinder connector is connected to the first bag-supporting rod. The two ends of the inclined lever are respectively connected to the first and second bag-supporting rods.

[0009] In one possible implementation, the bag support assembly further includes a first bag support handle and a second bag support handle; the first bag support handle is connected to the end of the first bag support rod near the packaging bag; the second bag support handle is connected to the end of the second bag support rod near the packaging bag.

[0010] In one possible implementation, the bag support assembly further includes a first bag support bearing and a second bag support bearing; two rotating shafts are provided on the outer side of the bag support shaft; the first bag support bearing is connected between one of the rotating shafts and the first bag support rod; the second bag support bearing is connected between the other rotating shaft and the second bag support rod.

[0011] In one possible implementation, the bagging assembly includes a seventh drive member, an eighth drive member, a first door panel, and a second door panel; the seventh drive member and the eighth drive member are spaced apart; one end of the seventh drive member is connected to the packaging machine support, and the other end of the seventh drive member is connected to the first door panel; one end of the eighth drive member is connected to the packaging machine support, and the other end of the eighth drive member is connected to the second door panel; the seventh drive member and the eighth drive member are configured to drive the first door panel and the second door panel to move respectively, and the first door panel and the second door panel are configured to clamp the packaging bag.

[0012] One or more technical solutions provided in this application have at least the following technical effects:

[0013] This utility model embodiment employs a bag feeding mechanism for a solid alkali packaging machine, including a packaging machine support, a bag feeding tray, a bag picking and feeding assembly, a bag opening assembly, a bag supporting assembly, and a bag filling assembly. The bag picking and feeding assembly enables precise transfer of the packaging bag from the bag feeding tray to the bag filling position; the bag opening assembly uses negative pressure adsorption to collaboratively separate the bag opening; the bag supporting assembly extends into the bag opening and expands bidirectionally, ensuring the bag opening is fully open; the bag filling assembly uses a door plate to clamp and fix the bag opening, creating conditions for material feeding. The operator only needs to place the packaging bag onto the bag feeding tray; the subsequent bag picking, opening, supporting, and filling processes are all completed automatically, completely avoiding personnel contact with alkali dust. Furthermore, the first and second bag supporting handles, in conjunction with the first and second door plates, can accommodate packaging bags of different sizes, ensuring bag filling positioning accuracy. This application solves the safety risks posed by personnel exposure to solid alkali dust during manual bagging operations in the prior art, and the technical problems of semi-automatic packaging machines being unable to continuously complete bag feeding operations. It achieves full automation of the entire process from bag picking, bag feeding, bag opening, bag opening to bag filling, significantly improving packaging efficiency and equipment reliability while reducing occupational hazards. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1A schematic diagram of a bag feeding mechanism for a solid alkali packaging machine provided in an embodiment of this application;

[0016] Figure 2 A schematic diagram of a bag feeding mechanism for a solid alkali packaging machine provided in an embodiment of this application;

[0017] Icons: 1-Packaging machine support; 2-Bag supply tray; 3-Bag feeding assembly; 31-Bag suction cup; 32-Suction cup hardware; 33-First drive component; 34-Second drive component; 35-Crossbeam; 4-Bag opening assembly; 41-Third drive component; 42-Bag opening distributor; 43-Upper bag opening suction cup; 44-Lower bag suction hardware; 45-Lower bag opening suction cup; 5-Bag support assembly; 51-Fourth drive component; 52-Fifth drive component; 53- 54-Second bag support rod; 55-Bag support plate; 56-Bag support shaft; 57-Bag opening bracket; 58-Diagonal lever; 59-Sixth drive component; 591-Cylinder connector; 592-First bag support handle; 593-Second bag support handle; 594-First bag support bearing; 595-Second bag support bearing; 6-Bag filling assembly; 61-Seventh drive component; 62-Eighth drive component; 63-First door panel; 64-Second door panel. Detailed Implementation

[0018] 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, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0019] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "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 the embodiments of 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 of this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, the terms "installed," "connected," and "linked" 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; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0020] This utility model embodiment provides a bag feeding mechanism for a solid alkali packaging machine, such as... Figure 1-2 As shown, the system includes a packaging machine support 1, a bag feeding tray 2, a bag picking and feeding assembly 3, a bag opening assembly 4, a bag supporting assembly 5, and a bag filling assembly 6. The bag feeding tray 2 is connected to the packaging machine support 1 and a packaging bag is placed on it. The bag picking and feeding assembly 3 is located on the side of the bag feeding tray 2 where the packaging bag is placed and is configured to move the packaging bag to the bag filling position. The bag opening assembly 4 is located at the bag filling position, with one end connected to the packaging machine support 1 and the other end configured to abut against the packaging bag. One end of the bag supporting assembly 5 is connected to the packaging machine support 1, and the other end of the bag supporting assembly 5 is located at the bag filling position and can extend into the packaging bag and open it. One end of the bag filling assembly 6 is connected to the packaging machine support 1, and the other end of the bag filling assembly 6 is configured to fix the packaging bag.

[0021] For example, the bag feeding assembly 3 enables precise transfer of packaging bags from the bag supply tray 2 to the bagging position; the bag opening assembly 4 uses negative pressure adsorption to synergistically separate the bag opening; and the bag supporting assembly 5 can extend into the bag opening and expand bidirectionally, thereby ensuring that the bag opening is fully open; the bag filling assembly 6 uses a door panel to clamp and fix the bag opening, creating conditions for material unloading. The operator only needs to place the packaging bag onto the bag supply tray 2, and the subsequent bag picking, opening, supporting, and filling processes are all completed automatically, completely avoiding personnel contact with alkaline dust.

[0022] In the embodiments of this application, such as Figure 1-2 As shown, the bag-feeding assembly 3 includes a bag-feeding suction cup 31, a suction cup fitting 32, a first driving member 33, a second driving member 34, and a crossbeam 35; the crossbeam 35 is connected to the packaging machine bracket 1; the fixed end of the first driving member 33 is connected to the second driving member 34, the output end of the first driving member 33 is connected to one end of the suction cup fitting 32, and the other end of the suction cup fitting 32 is connected to the bag-feeding suction cup 31; the bag-feeding suction cup 31 is configured to pick up packaging bags; the output end of the second driving member 34 is connected to the fixed end of the first driving member 33, and the fixed end of the second driving member 34 is connected to the crossbeam 35.

[0023] For example, the first driving component 33 includes a cylinder, which can pick up the pre-stored packaging bag on the bag supply tray 2 and transport the packaging bag to the bagging position via the second driving component 34. Specifically, the second driving component 34 includes a motor or a cylinder, the output end of which is connected to the first driving component 33, thereby enabling the first driving component 33, the suction cup hardware 32, the bag-picking suction cup 31, and the packaging bag to be moved together to the bagging position.

[0024] For example, the first driving member 33 drives the bag-picking suction cup 31 to move toward the packaging bag. When the bag-picking suction cup 31 installed on the suction cup hardware 32 touches the surface of the material bag, the bag-picking suction cup 31 generates negative pressure and uses the negative pressure to adsorb the side of the material bag. The first driving member 33 then drives the packaging bag to move away from the bag supply tray 2. Finally, the second driving member 34 drives the first driving member 33 to move, thereby moving the material bag to the bagging position.

[0025] In the embodiments of this application, such as Figure 1-2 As shown, the bag opening assembly 4 includes a third drive component 41, a bag opening distributor 42, an upper bag opening suction cup 43, a lower bag suction fitting 44, and a lower bag opening suction cup 45; the fixed end of the third drive component 41 is connected to the crossbeam 35, and the output end of the third drive component 41 is connected to the bag opening distributor 42; the upper bag opening suction cup 43 is connected to the side of the bag opening distributor 42 near the packaging bag; one end of the lower bag suction fitting 44 is connected to the packaging machine bracket 1; the lower bag opening suction cup 45 and the upper bag opening suction cup 43 are arranged opposite to each other.

[0026] For example, the lower opening suction cup 45 generates negative pressure to adsorb one side of the packaging bag, and the third driving member 41 drives the upper opening suction cup 43 to move to the position of the packaging bag, so that the upper opening suction cup 43 generates negative pressure to adsorb the other side of the packaging bag; the third driving member 41 then drives the upper opening suction cup 43 to move away from the lower opening suction cup 45, thereby achieving the purpose of opening the packaging bag.

[0027] In the embodiments of this application, such as Figure 1-2 As shown, the bag-supporting assembly 5 includes a fourth driving member 51, a fifth driving member 52, a first bag-supporting rod 53, a second bag-supporting rod 54, a bag-supporting plate 55, a bag-supporting shaft 56, a bag-opening bracket 57, a diagonal lever 58, a sixth driving member 59, and a cylinder connector 591; the bag-opening bracket 57 is connected to the packaging machine bracket 1, and the bag-supporting shaft 56 is rotatably connected to the bag-opening bracket 57, with the bag-supporting shaft 56 arranged parallel to the crossbeam 35; the fixed end of the fourth driving member 51 is connected to the packaging machine bracket 1, the output end of the fourth driving member 51 is connected to the fixed end of the fifth driving member 52, the output end of the fifth driving member 52 is hinged to one end of the bag-supporting plate 55, and the other end of the bag-supporting plate 55 is connected to the bag-supporting shaft 56; the first bag-supporting rod 53 and... The second bag support rods 54 are spaced apart, and one end of the first bag support rod 53 is rotatably connected to the outside of the bag support shaft 56, and one end of the second bag support rod 54 is rotatably connected to the outside of the bag support shaft 56. The other ends of the first bag support rod 53 and the second bag support rod 54 are both configured to extend into the packaging bag and open the packaging bag. A sixth driving member 59 is connected between the first bag support rod 53 and the second bag support rod 54. The fixed end of the sixth driving member 59 is connected to the second bag support rod 54, and the output end of the sixth driving member 59 is connected to one end of the cylinder connector 591. The other end of the cylinder connector 591 is connected to the first bag support rod 53. The two ends of the inclined lever 58 are respectively connected to the first bag support rod 53 and the second bag support rod 54.

[0028] For example, the first bag support rod 53 and the second bag support rod 54 are initially positioned at the opening of the packaging bag at the bag filling position. The fourth driving member 51 retracts, causing the bag support plate 55 to move towards the packaging bag. When the bag support plate 55 moves, it can drive the bag support shaft 56 to rotate. During the rotation of the bag support shaft 56, it can drive the first bag support rod 53 and the second bag support rod 54 to move towards the packaging bag simultaneously, that is, the first bag support rod 53 and the second bag support rod 54 can extend into the bag opening. Furthermore, the sixth driving member 59 drives the first bag support rod 53 and the second bag support rod 54 to rotate in a direction away from each other, thereby achieving the purpose of opening the bag opening.

[0029] For example, the diagonal lever 58 is telescopic to improve the reliability of the first bag support rod 53 and the second bag support rod 54 mechanism when opening the bag opening.

[0030] For example, the two ends of the inclined lever 58 are connected to the first support rod 53 and the second support rod 54 respectively via fisheye bearings.

[0031] In the embodiments of this application, such as Figure 1-2 As shown, the bag support assembly 5 also includes a first bag support handle 592 and a second bag support handle 593; the first bag support rod 53 is connected to the first bag support handle 592 at one end near the packaging bag; and the second bag support rod 54 is connected to the second bag support handle 593 at one end near the packaging bag.

[0032] In the embodiments of this application, such as Figure 1-2 As shown, the bag support assembly 5 also includes a first bag support bearing 594 and a second bag support bearing 595; two rotating shafts are provided on the outer side of the bag support shaft 56; the first bag support bearing 594 is connected between one of the rotating shafts and the first bag support rod 53; the second bag support bearing 595 is connected between the other rotating shaft and the second bag support rod 54.

[0033] For example, the first bag support handle 592 and the second bag support handle 593 are plate-like structures, which can increase the contact area with the packaging bag and thus improve the reliability of the packaging bag during transportation.

[0034] For example, the fifth driving member 52 drives the bag support plate 55 to move closer to the bag filling assembly 6, thereby driving the bag support shaft 56 to rotate. The bag support shaft 56 simultaneously drives the first bag support rod 53 and the second bag support rod 54 to rotate closer to the bag filling assembly 6. The first bag support handle 592 and the second bag support handle 593 can move the packaging bag to the position of the bag filling assembly 6 and put the packaging bag on the bag filling assembly 6. The bag filling assembly 6 can fix the packaging bag, thereby realizing the subsequent filling process of the packaging bag.

[0035] In the embodiments of this application, such as Figure 1-2As shown, the bagging assembly 6 includes a seventh drive member 61, an eighth drive member 62, a first door panel 63, and a second door panel 64. The seventh drive member 61 and the eighth drive member 62 are spaced apart. One end of the seventh drive member 61 is connected to the packaging machine support 1, and the other end of the seventh drive member 61 is connected to the first door panel 63. One end of the eighth drive member 62 is connected to the packaging machine support 1, and the other end of the eighth drive member 62 is connected to the second door panel 64. The seventh drive member 61 and the eighth drive member 62 are configured to drive the first door panel 63 and the second door panel 64 to move, respectively. The first door panel 63 and the second door panel 64 are configured to clamp the packaging bag.

[0036] For example, after the packaging bag is placed in the target position, the seventh drive member 61 and the eighth drive member 62 can respectively drive the first door panel 63 and the second door panel 64 to move towards the packaging bag, thereby fixing the packaging bag.

[0037] This utility model embodiment provides a bag feeding mechanism for a solid alkali packaging machine, the working process of which is as follows:

[0038] The first driving component 33 drives the bag-picking suction cup 31 to move towards the packaging bag. When the bag-picking suction cup 31, mounted on the suction cup fitting 32, touches the surface of the bag, it generates negative pressure and uses this negative pressure to adhere to the side of the bag. The first driving component 33 then drives the packaging bag to move away from the bag supply tray 2. Finally, the second driving component 34 drives the first driving component 33 to move, thereby moving the bag to the bagging position. The lower opening suction cup 45 generates negative pressure to adhere to one side of the packaging bag, and the third driving component 41 drives the upper opening suction cup 43 to move to the position of the packaging bag, thereby generating negative pressure to adhere to the packaging bag. On the other side; the third driving component 41 then drives the upper bag opening suction cup 43 to move away from the lower bag opening suction cup 45, thereby achieving the purpose of opening the packaging bag; the first bag support rod 53 and the second bag support rod 54 are initially set at the opening of the packaging bag at the bag filling position. The fourth driving component 51 retracts and drives the bag support plate 55 to move closer to the packaging bag. When the bag support plate 55 moves, it can drive the bag support shaft 56 to rotate. During the rotation of the bag support shaft 56, it can drive the first bag support rod 53 and the second bag support rod 54 to move closer to the packaging bag at the same time, that is, the first bag support rod 53 and the second bag support rod 54 can extend into the bag opening. Furthermore, the sixth driving component 59 drives the first bag support rod 53 and the second bag support rod 54 to rotate in a direction away from each other, thereby opening the bag opening; the fifth driving component 52 drives the bag support plate 55 to move closer to the bag filling assembly 6, thereby driving the bag support shaft 56 to rotate. The bag support shaft 56 simultaneously drives the first bag support rod 53 and the second bag support rod 54 to rotate closer to the bag filling assembly 6. The first bag support handle 592 and the second bag support handle 593 can move the packaging bag to the position of the bag filling assembly 6 and put the packaging bag on the bag filling assembly 6. The bag filling assembly 6 can fix the packaging bag, thereby realizing the subsequent filling process of the packaging bag.

[0039] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.

[0040] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. A solid caustic soda packaging machine bag feeding mechanism characterized by, It includes a packaging machine support (1), a bag feeding tray (2), a bag picking and feeding assembly (3), a bag opening assembly (4), a bag supporting assembly (5), and a bag filling assembly (6); The bag feeding tray (2) is connected to the packaging machine support (1), and packaging bags are placed on it; The bag delivery assembly (3) is disposed on the side of the bag supply tray (2) where the packaging bag is placed, and is configured to move the packaging bag to the bagging position; The bag opening component (4) is located at the bag filling position. One end of the bag opening component (4) is connected to the packaging machine bracket (1), and the other end of the bag opening component (4) is configured to abut against the packaging bag. One end of the bag support assembly (5) is connected to the packaging machine bracket (1), and the other end of the bag support assembly (5) is located at the bag filling position. The other end of the bag support assembly (5) can extend into the inside of the packaging bag and open the packaging bag. One end of the bagging assembly (6) is connected to the packaging machine bracket (1), and the other end of the bagging assembly (6) is configured to fix the packaging bag.

2. The solid caustic packaging machine infeed mechanism of claim 1, wherein, The bag delivery assembly (3) includes a bag suction cup (31), a suction cup fitting (32), a first drive component (33), a second drive component (34), and a crossbeam (35); The crossbeam (35) is connected to the packaging machine support (1); The fixed end of the first driving member (33) is connected to the second driving member (34), the output end of the first driving member (33) is connected to one end of the suction cup fitting (32), and the other end of the suction cup fitting (32) is connected to the bag-retrieving suction cup (31). The bag-removing suction cup (31) is configured to pick up the packaging bag; The output end of the second drive member (34) is connected to the fixed end of the first drive member (33), and the fixed end of the second drive member (34) is connected to the crossbeam (35).

3. The solid caustic packaging machine infeed mechanism of claim 2, wherein, The bag opening assembly (4) includes a third drive unit (41), a bag opening distributor (42), an upper bag opening suction cup (43), a lower suction bag fitting (44), and a lower bag opening suction cup (45); The fixed end of the third drive unit (41) is connected to the crossbeam (35), and the output end of the third drive unit (41) is connected to the bag opener (42); The upper bag opening suction cup (43) is connected to the side of the bag opening dispenser (42) near the packaging bag; One end of the lower suction bag fitting (44) is connected to the packaging machine bracket (1); The lower opening suction cup (45) and the upper opening suction cup (43) are arranged opposite to each other.

4. The solid caustic packaging machine infeed mechanism of claim 2, wherein, The bag support assembly (5) includes a fourth drive member (51), a fifth drive member (52), a first bag support rod (53), a second bag support rod (54), a bag support plate (55), a bag support shaft (56), a bag opening bracket (57), a diagonal lever (58), a sixth drive member (59), and a cylinder connector (591). The bag opening bracket (57) is connected to the packaging machine bracket (1), the bag support shaft (56) is rotatably connected to the bag opening bracket (57), and the bag support shaft (56) is arranged parallel to the crossbeam (35); The fixed end of the fourth driving member (51) is connected to the packaging machine bracket (1), the output end of the fourth driving member (51) is connected to the fixed end of the fifth driving member (52), the output end of the fifth driving member (52) is hinged to one end of the bag support plate (55), and the other end of the bag support plate (55) is connected to the bag support shaft (56). The first bag support rod (53) and the second bag support rod (54) are spaced apart, and one end of the first bag support rod (53) is rotatably connected to the outside of the bag support shaft (56), and one end of the second bag support rod (54) is rotatably connected to the outside of the bag support shaft (56). The other ends of the first bag support rod (53) and the second bag support rod (54) are both configured to extend into the inside of the packaging bag and open the packaging bag. The sixth driving member (59) is connected between the first bag support rod (53) and the second bag support rod (54). The fixed end of the sixth driving member (59) is connected to the second bag support rod (54), and the output end of the sixth driving member (59) is connected to one end of the cylinder connector (591). The other end of the cylinder connector (591) is connected to the first bag support rod (53). The two ends of the inclined lever (58) are connected to the first support rod (53) and the second support rod (54), respectively.

5. The bag feeding mechanism of the solid alkali packaging machine according to claim 4, characterized in that, The bag support assembly (5) also includes a first bag support handle (592) and a second bag support handle (593); The first bag support rod (53) is connected to the first bag support handle (592) at one end near the packaging bag; The second bag support rod (54) is connected to the second bag support handle (593) at one end near the packaging bag.

6. The bag feeding mechanism of the solid alkali packaging machine according to claim 4, characterized in that, The bag support assembly (5) also includes a first bag support bearing (594) and a second bag support bearing (595); Two rotating shafts are provided on the outer side of the bag support shaft (56); The first support bag bearing (594) is connected between one of the rotating shafts and the first support bag rod (53); The second support bag bearing (595) is connected between the other rotating shaft and the second support bag rod (54).

7. The solid caustic packaging machine in-bag mechanism of claim 1, wherein, The bagging assembly (6) includes a seventh drive member (61), an eighth drive member (62), a first door panel (63), and a second door panel (64): The seventh driving member (61) and the eighth driving member (62) are spaced apart; One end of the seventh driving component (61) is connected to the packaging machine bracket (1), and the other end of the seventh driving component (61) is connected to the first door panel (63); One end of the eighth drive unit (62) is connected to the packaging machine bracket (1), and the other end of the eighth drive unit (62) is connected to the second door panel (64); The seventh drive member (61) and the eighth drive member (62) are configured to drive the first door panel (63) and the second door panel (64) to move respectively, and the first door panel (63) and the second door panel (64) are configured to clamp the packaging bag.

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