Sealing mechanism for rice packaging

Abstract

The utility model discloses a sealing mechanism for rice packaging. Comprising a machine frame, rice bag heat sealing equipment arranged on the machine frame in a lifting mode, a first adjusting assembly for adjusting the height position of the rice bag heat sealing equipment relative to the machine frame, a movable plate arranged on the machine frame in a sliding mode, a second adjusting assembly for adjusting the horizontal position of the movable plate relative to the machine frame, and an L-shaped plate arranged on the movable plate in a sliding mode. The sliding assembly drives the L-shaped plate to slide, the rice bag supporting plate is horizontally fixed to the back side of the L-shaped plate, the rice bag positioning frame is arranged on the back side of the L-shaped plate in a lifting mode and is parallel to the upper portion of the rice bag supporting plate, and the lifting assembly drives the rice bag positioning frame to be close to or away from the rice bag supporting plate in a lifting mode. The sealing device has the advantages of being convenient to operate and efficient in sealing.

Description

TECHNICAL FIELD

[0001] The utility model relates to rice packaging machinery technical field, especially a sealing mechanism for rice packaging. BACKGROUND

[0002] In the production and packaging process of rice, a vertical rice bag sealing machine is usually used to seal the rice packaging plastic bag, and the working mode of the existing vertical rice bag sealing machine is that the rice bag is placed on the belt conveyor of the sealing machine by manual operation, then the belt conveyor conveys the rice bag, so that the bag opening of the rice bag passes through the heat sealing processing gap of the heat sealing equipment of the sealing machine, the bag opening of the rice bag is clamped and heated, and finally the belt conveyor conveys the rice bag away from the heat sealing processing gap, so that the sealing processing of the rice bag is completed. During the conveying of the rice bag, the belt conveyor needs to be manually supported by manual operation to avoid the rice bag from tilting due to inertia, and the belt conveyor also needs to maintain a stable and slow speed to ensure the balance of the rice bag during conveying, which leads to a long time required for the whole sealing processing of the rice bag and low sealing processing efficiency. SUMMARY

[0003] The utility model aims at providing a sealing mechanism for rice packaging, which has the advantages of convenient operation and high sealing efficiency.

[0004] The above technical purpose of the utility model is realized by the following technical scheme: a sealing mechanism for rice packaging, comprising a rack, a rice bag heat sealing equipment which is arranged on the rack in a lifting mode, an adjusting assembly one which is arranged on the rack and is used for adjusting the height position of the rice bag heat sealing equipment relative to the rack, a moving plate which is arranged on the rack in a sliding mode, an adjusting assembly two which is arranged on the rack and is used for adjusting the horizontal position of the moving plate relative to the rack, an L-shaped plate which is arranged on the moving plate in a sliding mode, a sliding assembly which is arranged on the L-shaped plate and is used for driving the L-shaped plate to slide, a rice bag supporting plate which is arranged on the back side of the L-shaped plate in a horizontal mode, a rice bag positioning frame which is arranged on the back side of the L-shaped plate in a lifting mode and is parallel to the upper side of the rice bag supporting plate, and a lifting assembly which is arranged on the back side of the L-shaped plate and is used for driving the rice bag positioning frame to move close to or away from the rice bag supporting plate, wherein the rice bag supporting plate and the rice bag positioning frame are arranged below the rice bag heat sealing equipment to support and position the rice bag, the L-shaped plate moves along the heat sealing gap of the rice bag heat sealing equipment, and cooperates with the rice bag supporting plate and the rice bag positioning frame to convey the bag opening of the rice bag through the heat sealing gap of the rice bag heat sealing equipment, and the moving plate moves along the vertical direction of the heat sealing gap of the rice bag heat sealing equipment, and cooperates with the L-shaped plate, the rice bag supporting plate and the rice bag positioning frame to align the bag opening of the rice bag with the heat sealing gap of the rice bag heat sealing equipment.

[0005] The further setting of the utility model discloses: the rack includes the U-shaped base that is placed horizontally on the ground, a pair of vertical fixed square support column on the U-shaped base, one horizontal connecting plate that connects two square support column top, the rice bag heat sealing equipment one side fixedly set with the square slide sleeve of two square support column, the moving plate is slid on the U-shaped base, and the one side fixedly set with two guide rods no.

[0006] The further setting of the utility model discloses: the moving plate surface is set in the rectangular chute, the bottom of the L-shaped plate is fixedly set with the sliding block that is slid in the rectangular chute, the inside fixed setting of the rectangular chute has two guide rods no.

[0007] The further setting of the utility model discloses: the rice bag support plate bottom vertical fixed setting has the mounting plate no. 1, the mounting plate no. 1 and the rice bag support plate one side are mutually flush, the mounting plate no. 1 screw is fixed on the back side of L-shaped plate.

[0008] The further setting of the utility model discloses: the L-shaped plate back is set with the rectangular through -hole, the rectangular through -hole is slid with the sliding plate, the rectangular through -hole vertical fixed setting has a pair of guide rods no. 3 that are slid through the sliding plate, the rice bag positioning frame top is fixedly set with the mounting plate no. 2 that contacts the one side of sliding plate, the one side fixedly set with a pair of screw rod that is slid through the sliding plate of mounting plate no. 2 contact sliding plate, the screw rod is screwed with the locking nut of locking mounting plate no. 2 and sliding plate.

[0009] The further setting of the utility model discloses: the adjusting assembly no. 1 includes the screw rod no. 1 that is vertically rotated and set on the U-shaped base, the adjusting nut no. 1 that is fixed on the rice bag heat sealing equipment and is screwed with the screw rod no. 1, the handle that is fixedly connected on the upper end of screw rod no. 1, the screw rod no. 1 is parallel in the middle of two square support column, and the upper end of screw rod no. 1 is rotated and passes through the connecting plate.

[0010] The further setting of the utility model discloses: the adjusting assembly no. 2 includes the screw rod no. 2 that is rotationally connected on the bottom of moving plate, the adjusting nut no. 2 that is fixed on the U-shaped base and is screwed with the screw rod no. 2, the internal hex sleeve that is fixed on the other end of screw rod no. 2, the bottom of moving plate is fixedly set with the connecting block, the connecting hole is set on the one side of connecting block, the connecting hole and screw rod no. 2 are coaxial, and the inner diameter of connecting hole is greater than the outer diameter of screw rod no. 2, one end of screw rod no. 2 is fixedly set with the connecting head that is movably inserted into the connecting hole, the one side screw of connecting block is fixed with annular cover plate, the annular cover plate and screw rod no. 2 are coaxial, and the inner diameter of annular cover plate and the outer diameter of screw rod no. 2 are equal, the screw rod no. 2 is parallel in the middle of two guide rods no. 1, and passes through the side wall of the U-shaped base.

[0011] The further setting of the utility model discloses: the sliding assembly includes the screw rod three of horizontal rotation setting in the rectangular chute, the drive nut one of being fixed on the sliding block and being connected with the screw rod three, the servo motor one of driving the screw rod three rotation, the screw rod three is parallel in the middle of two guide bars two, and passes through the sliding block, the servo motor one is fixed on the end of moving plate, and one end of the screw rod three rotates and goes out the rectangular chute, and the output end of servo motor one is fixedly connected.

[0012] The further setting of the utility model discloses: the lifting assembly includes the screw rod four of vertical rotation setting in the rectangular through -hole, the drive nut two of being fixed on the sliding plate and being connected with the screw rod four, the servo motor two of driving the screw rod four rotation, the screw rod four is parallel between two guide bars three, the servo motor two is fixed on the top of L-shaped plate, and the upper end of the screw rod four rotates and goes out the rectangular through -hole, and the output end of servo motor two is fixedly connected.

[0013] The further setting of the utility model discloses: the rice bag support plate top is fixedly arranged with the square boss of being inserted into the middle of rice bag positioning frame.

[0014] The utility model discloses the beneficial effect is: through adopting above-mentioned sealing mechanism, when needing to seal rice packaging bag, first, the packaging bag filled with rice is placed on the rice bag support plate, and the edge of the rice packaging bag is guaranteed not to exceed the circumference of the rice bag support plate, then, the lifting assembly is started, and the rice bag positioning frame is lifted from the edge of the square boss upwards, and is until the middle of the rice packaging bag is above the position, and then the rice bag is surrounded in the circumference in this way, which not only avoids the rice bag from tilting, but also does not need manual support during the whole process, so that it is convenient and easy to operate and use, then, the adjusting assembly one and the adjusting assembly two are used in turn, the height position of the rice bag heat sealing equipment and the horizontal position of the moving plate are adjusted respectively, so that the bag opening of the rice bag and the heat sealing gap of the rice bag heat sealing equipment are aligned, finally, the moving assembly is started, the L-shaped plate is driven to slide quickly, so that the rice bag support plate and the rice bag positioning frame drive the rice packaging bag to pass through the heat sealing gap of the rice bag heat sealing equipment stably and quickly, thereby efficiently completing the sealing processing of the rice packaging bag. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by the person skilled in the art without creating labor.

[0016] Figure 1 It is the three-dimensional structure of this embodiment Figure 1 ;

[0017] Figure 2 is a schematic diagram of the three-dimensional structure of the embodiment Figure 2 ;

[0018] Figure 3 is a schematic diagram of the connection relationship between the lead screw two and the moving plate of the embodiment

[0019] Figure 4 is a schematic diagram of the connection relationship between the moving plate, the L-shaped plate, the rice bag support plate and the rice bag positioning frame of the embodiment

[0020] Figure 5 is a schematic diagram of the structure of the lifting assembly of the embodiment

[0021] In the figure, 1, rack; 11, U-shaped base; 12, square support column; 13, connecting plate; 2, rice bag heat sealing equipment; 21, square sliding sleeve; 3, adjusting assembly one; 31, lead screw one; 32, adjusting nut one; 33, handle; 4, moving plate; 41, guide rod one; 42, rectangular sliding groove; 43, guide rod two; 44, connecting block; 45, connecting hole; 46, annular cover plate; 5, adjusting assembly two; 51, lead screw two; 511, connecting head; 52, adjusting nut two; 53, internal hex sleeve; 6, L-shaped plate; 61, sliding block; 62, rectangular through hole; 63, guide rod three; 64, sliding plate; 7, sliding assembly; 71, lead screw three; 72, transmission nut one; 73, servo motor one; 8, rice bag support plate; 81, mounting plate one; 82, square boss; 9, rice bag positioning frame; 91, mounting plate two; 92, screw rod; 93, locking nut; 10, lifting assembly; 101, lead screw four; 102, transmission nut two; 103, servo motor two. DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Embodiment: a sealing mechanism for rice packaging, as shown in Figures 1-5As shown, it comprises a rack 1, a rice bag heat sealing device 2 arranged on the rack 1, an adjusting assembly one 3 for adjusting the height position of the rice bag heat sealing device 2 relative to the rack 1, a moving plate 4 arranged on the rack 1, an adjusting assembly two 5 for adjusting the horizontal position of the moving plate 4 relative to the rack 1, an L-shaped plate 6 arranged on the moving plate 4, a sliding assembly 7 for driving the L-shaped plate 6 to slide, a rice bag supporting plate 8 horizontally fixed on the back side of the L-shaped plate 6, a rice bag positioning frame 9 arranged on the back side of the L-shaped plate 6 and parallel to the upper side of the rice bag supporting plate 8, a lifting assembly 10 for driving the rice bag positioning frame 9 to move close to or away from the rice bag supporting plate 8, the rice bag supporting plate 8 and the rice bag positioning frame 9 are arranged below the rice bag heat sealing device 2 to support and position the rice bag, the L-shaped plate 6 moves along the heat sealing gap of the rice bag heat sealing device 2 and cooperates with the rice bag supporting plate 8 and the rice bag positioning frame 9 to convey the bag opening of the rice bag through the heat sealing gap of the rice bag heat sealing device 2, the moving plate 4 moves along the vertical direction of the heat sealing gap of the rice bag heat sealing device 2 and cooperates with the L-shaped plate 6, the rice bag supporting plate 8 and the rice bag positioning frame 9 to align the bag opening of the rice bag with the heat sealing gap of the rice bag heat sealing device 2.

[0024] Further, the rack 1 comprises a U-shaped base 11 horizontally placed on the ground, a pair of square supporting columns 12 vertically fixed on the U-shaped base 11, a connecting plate 13 horizontally connecting the top ends of the two square supporting columns 12, and a square sliding sleeve 21 fixed on one side of the rice bag heat sealing device 2 and sleeved on the two square supporting columns 12. The moving plate 4 slides on the U-shaped base 11 and is fixed on one side close to the square supporting columns 12 and provided with two guide rods one 41 respectively penetrating through the two square supporting columns 12. By using the above-mentioned rack 1, the rice bag heat sealing device 2 and the moving plate 4 can be stably supported, and the square sliding sleeve 21 and the guide rods one 41 can further ensure the stable lifting of the rice bag heat sealing device 2 and the stable sliding of the moving plate 4.

[0025] Further, a rectangular sliding groove 42 is formed on the surface of the moving plate 4, a sliding block 61 is fixed on the bottom of the L-shaped plate 6 and slides in the rectangular sliding groove 42, and two guide rods two 43 are fixed in the rectangular sliding groove 42 and slide through the sliding block 61. By using the above-mentioned rectangular sliding groove 42, sliding block 61 and guide rods two 43, the stable sliding of the L-shaped plate 6 on the moving plate 4 can be further ensured.

[0026] Further, the bottom of the rice bag supporting plate 8 is vertically and fixedly provided with a mounting plate one 81, which is flush with one side of the rice bag supporting plate 8, and is screw-fixed on the back side of the L-shaped plate 6; the back of the L-shaped plate 6 is provided with a rectangular through hole 62, the sliding plate 64 is slidingly arranged in the rectangular through hole 62, and a pair of guide rods three 63 slidingly penetrating through the sliding plate 64 are vertically and fixedly arranged in the rectangular through hole 62; the top of the rice bag positioning frame 9 is fixedly provided with a mounting plate two 91 contacting one side of the sliding plate 64, and a pair of screw rods 92 slidingly penetrating through the sliding plate 64 are fixedly arranged on the side of the mounting plate two 91 contacting the sliding plate 64, and the locking nuts 93 threadedly connecting the mounting plate two 91 and the sliding plate 64 are arranged on the screw rods 92. By adopting the above-mentioned mounting plate one 81 and mounting plate two 91, the rice bag supporting plate 8 and the rice bag positioning frame 9 can be conveniently maintained and replaced by the staff, and the mounting plate two 91 cooperates with the sliding plate 64 and the guide rods three 63, so as to further ensure the lifting stability of the rice bag positioning frame 9.

[0027] Further, the adjusting assembly one 3 comprises a lead screw one 31 vertically and rotationally arranged on the U-shaped base 11, an adjusting nut one 32 fixedly arranged on the rice bag heat sealing equipment 2 and threadedly connected with the lead screw one 31, and a handle 33 fixedly connected with the upper end of the lead screw one 31, the lead screw one 31 is parallel to the middle portions of the two square supporting columns 12, and the upper end of the lead screw one 31 rotationally penetrates through the connecting plate 13. By adopting the above-mentioned adjusting assembly one 3, when the height of the rice bag heat sealing equipment 2 needs to be adjusted, the handle 33 is manually rotated, so that the lead screw one 31 is rotated, and then the adjusting nut one 32 threadedly connected with the lead screw one 31 will drive the rice bag heat sealing equipment 2 to ascend or descend along the lead screw one 31, thereby achieving the effect of adjusting the height position of the rice bag heat sealing equipment 2.

[0028] Further, the adjusting assembly two 5 comprises a lead screw two 51 rotationally connected with the bottom of the moving plate 4, an adjusting nut two 52 fixedly arranged on the U-shaped base 11 and threadedly connected with the lead screw two 51, and an internal hex sleeve 53 fixedly arranged on the other end of the lead screw two 51; the bottom of the moving plate 4 is fixedly provided with a connecting block 44, the connecting block 44 is provided with a connecting hole 45 on one side, the connecting hole 45 is coaxial with the lead screw two 51, and the inner diameter of the connecting hole 45 is greater than the outer diameter of the lead screw two 51; a connecting head 511 movably inserted into the connecting hole 45 is fixedly arranged on one end of the lead screw two 51; a ring-shaped cover plate 46 screw-fixed on one side of the connecting block 44 is coaxial with the lead screw two 51, and the inner diameter of the ring-shaped cover plate 46 is equal to the outer diameter of the lead screw two 51; the lead screw two 51 is parallel to the middle portions of the two guide rods one 41 and penetrates through the side wall of the U-shaped base 11.

[0029] When the horizontal position of the moving plate 4 needs to be adjusted, the hexagonal wrench is used to rotate the inner hexagonal sleeve 53, which in turn rotates the screw rod 2. Since one end of the screw rod 2 is rotatably connected to the connecting block 44 at the bottom of the moving plate 4, and the adjusting nut 2 is fixed to the U-shaped base 11, the screw rod 2 can rotate while also sliding relative to the adjusting nut 2, thereby pulling or pushing the moving plate 4 to slide relative to the U-shaped base 11, so as to adjust the horizontal position of the moving plate 4. The connecting hole 45 of the connecting block 44, the connecting head 511 at the end of the screw rod 1, and the annular cover plate 46 connected to one side of the connecting block 44 can not only rotatably connect the screw rod 2 and the connecting block 44, but also ensure that the screw rod 2 stably pulls and pushes the moving plate 4.

[0030] Further, the sliding assembly 7 includes a screw rod 3 rotatably arranged in the rectangular sliding groove 42, a transmission nut 1 threadedly connected to the screw rod 3 and fixed to the sliding block 6, and a servo motor 1 driving the screw rod 3 to rotate. The screw rod 3 is parallel to the middle of the two guide rods 2 and passes through the sliding block 6. The servo motor 1 is fixed to the end of the moving plate 4. One end of the screw rod 3 rotatably penetrates the rectangular sliding groove 42 and is fixedly connected to the output end of the servo motor 1. When the L-shaped plate 6 needs to be driven to slide, the servo motor 1 is first started to drive the screw rod 3 to rotate. The transmission nut 1 threadedly connected to the screw rod 3 will drive the sliding block 6 to slide relative to the rectangular sliding groove 42 along the direction of the screw rod 3. Finally, the sliding block 6 drives the L-shaped plate 6 to slide relative to the moving plate 4, thereby stably conveying the rice packaging bag together with the rice bag supporting plate 8 and the rice bag positioning frame 9.

[0031] Further, the lifting assembly 10 includes a screw rod 4 rotatably arranged in the rectangular through hole 62, a transmission nut 2 threadedly connected to the screw rod 4 and fixed to the sliding plate 64, and a servo motor 2 driving the screw rod 4 to rotate. The screw rod 4 is parallel to the two guide rods 3. The servo motor 2 is fixed to the top of the L-shaped plate 6. The upper end of the screw rod 4 rotatably penetrates the rectangular through hole 62 and is fixedly connected to the output end of the servo motor 2. When the rice bag positioning frame 9 needs to be driven to lift, the servo motor 2 is first started to drive the screw rod 4 to rotate. The transmission nut 2 threadedly connected to the screw rod 4 will drive the sliding plate 64 to slide relative to the rectangular through hole 62 along the direction of the screw rod 4. Finally, the sliding plate 64 drives the rice bag positioning frame 9 to lift through the mounting plate 1.

[0032] Further, the square boss 82 is movably inserted into the middle of the rice bag positioning frame 9 and is fixed on the top of the rice bag supporting plate 8. By using the square boss 82, the worker can conveniently put or take out the rice bag on the rice bag supporting plate 8 when the rice bag positioning frame 9 is lowered below the top of the square boss 82.

[0033] Working principle of the embodiment:

[0034] When the rice bag needs to be sealed, first, the rice bag containing rice is placed on the rice bag supporting plate 8, and the edge of the rice bag is ensured not to exceed the periphery of the rice bag supporting plate 8; then, the lifting assembly 10 is opened to drive the rice bag positioning frame 9 to be lifted upward from the edge of the square boss 82 until the middle of the rice bag is above the position, thereby surrounding the periphery of the rice bag, avoiding the rice bag from being tilted, and the whole process does not need manual support, so it is convenient and easy to use; then, the adjusting assembly one 3 and the adjusting assembly two 5 are used in turn to adjust the height position of the rice bag heat sealing equipment 2 and the horizontal position of the moving plate 4, respectively, so that the bag opening of the rice bag and the heat sealing gap of the rice bag heat sealing equipment 2 are aligned; finally, the moving assembly is opened to drive the L-shaped plate 6 to slide quickly, so that the rice bag supporting plate 8 and the rice bag positioning frame 9 drive the rice bag to stably and quickly pass through the heat sealing gap of the rice bag heat sealing equipment 2, thereby efficiently completing the sealing process of the rice bag.

Claims

1. A sealing mechanism for rice packaging, characterized in that, Includes a frame (1), a rice bag heat sealing device (2) that is lifted and installed on the frame (1), an adjustment component one (3) for adjusting the height of the rice bag heat sealing device (2) relative to the frame (1), a sliding plate (4) that is slidably installed on the frame (1), an adjustment component two (5) for adjusting the horizontal position of the sliding plate (4) relative to the frame (1), an L-shaped plate (6) that is slidably installed on the sliding plate (4), a sliding component (7) for driving the L-shaped plate (6) to slide, a rice bag support plate (8) that is horizontally fixed on the back side of the L-shaped plate (6), a rice bag positioning frame (9) that is lifted and installed on the back side of the L-shaped plate (6) and parallel to the rice bag support plate (8), and a drive for the rice bag positioning frame (9). The lifting assembly (10) moves closer to or further away from the rice bag support plate (8). The rice bag support plate (8) and the rice bag positioning frame (9) are located below the rice bag heat sealing device (2) to support and position the rice bag. The L-shaped plate (6) moves along the heat sealing gap of the rice bag heat sealing device (2) and cooperates with the rice bag support plate (8) and the rice bag positioning frame (9) to convey the rice bag opening through the heat sealing gap of the rice bag heat sealing device (2). The moving plate (4) moves along the vertical direction of the heat sealing gap of the rice bag heat sealing device (2) and cooperates with the L-shaped plate (6), the rice bag support plate (8) and the rice bag positioning frame (9) to align the rice bag opening with the heat sealing gap of the rice bag heat sealing device (2).

2. The sealing mechanism for rice packaging according to claim 1, characterized in that: The frame (1) includes a U-shaped base (11) placed horizontally on the ground, a pair of square support columns (12) fixed vertically on the U-shaped base (11), and a connecting plate (13) that connects the tops of the two square support columns (12) horizontally. The rice bag heat sealing device (2) is fixedly provided with a square sliding sleeve (21) fitted on the two square support columns (12) on one side. The moving plate (4) slides on the U-shaped base (11), and two guide rods (41) that pass through the two square support columns (12) are fixedly provided on the side close to the square support columns (12).

3. A sealing mechanism for rice packaging according to claim 2, characterized in that: The surface of the movable plate (4) is provided with a rectangular groove (42), and the bottom of the L-shaped plate (6) is fixedly provided with a slider (61) that slides in the rectangular groove (42). Inside the rectangular groove (42) are two guide rods (43) that slide through the slider (61).

4. A sealing mechanism for rice packaging according to claim 2, characterized in that: The bottom of the rice bag support plate (8) is vertically fixed with an installation plate (81). The installation plate (81) is flush with one side of the rice bag support plate (8). The installation plate (81) is screwed to the back side of the L-shaped plate (6).

5. A sealing mechanism for rice packaging according to claim 2, characterized in that: The L-shaped plate (6) has a rectangular through hole (62) on its back. A sliding plate (64) is slidably disposed in the rectangular through hole (62). A pair of guide rods (63) are vertically fixed in the rectangular through hole (62) and slide through the sliding plate (64). A mounting plate (91) is fixedly disposed on the top of the rice bag positioning frame (9) and contacts the sliding plate (64). A pair of screws (92) are fixedly disposed on the side of the mounting plate (91) that contacts the sliding plate (64) and slide through the sliding plate (64). The screws (92) are threadedly connected to locking nuts (93) that lock the mounting plate (91) and the sliding plate (64).

6. A sealing mechanism for rice packaging according to claim 2, characterized in that: The adjustment component 1 (3) includes a lead screw 1 (31) vertically rotatably mounted on a U-shaped base (11), an adjustment nut 1 (32) fixed to the rice bag heat sealing device (2) and threadedly connected to the lead screw 1 (31), and a rotating handle (33) fixedly connected to the upper end of the lead screw 1 (31). The lead screw 1 (31) is located parallel to the middle of the two square support columns (12), and the upper end of the lead screw 1 (31) rotatably passes through the connecting plate (13).

7. A sealing mechanism for rice packaging according to claim 2, characterized in that: The second adjustment component (5) includes a second lead screw (51) rotatably connected to the bottom of the moving plate (4) at one end, an adjusting nut (52) fixed to the U-shaped base (11) and threadedly connected to the second lead screw (51), and an internal hexagonal sleeve (53) fixed to the other end of the second lead screw (51). A connecting block (44) is fixedly provided at the bottom of the moving plate (4). A connecting hole (45) is provided on one side of the connecting block (44). The connecting hole (45) and the second lead screw (51) are coaxial. The inner diameter of the screw is greater than the outer diameter of the second lead screw (51). One end of the second lead screw (51) is fixedly provided with a connector (511) that can be inserted into the connecting hole (45). A ring cover plate (46) is fixed to one side of the connecting block (44) with screws. The ring cover plate (46) and the second lead screw (51) are coaxial, and the inner diameter of the ring cover plate (46) is equal to the outer diameter of the second lead screw (51). The second lead screw (51) is located in parallel between the two guide rods (41) and passes through the side wall of the U-shaped base (11).

8. A sealing mechanism for rice packaging according to claim 3, characterized in that: The sliding assembly (7) includes a lead screw three (71) horizontally rotatably disposed in a rectangular slide groove (42), a transmission nut one (72) fixed on the slider (61) and threadedly connected to the lead screw three (71), and a servo motor one (73) driving the lead screw three (71) to rotate. The lead screw three (71) is located parallel to the middle of the two guide rods two (43) and passes through the slider (61). The servo motor one (73) is fixed to the end of the moving plate (4). One end of the lead screw three (71) rotates out of the rectangular slide groove (42) and is fixedly connected to the output end of the servo motor one (73).

9. A sealing mechanism for rice packaging according to claim 5, characterized in that: The lifting assembly (10) includes a lead screw four (101) vertically rotatably disposed in a rectangular through hole (62), a transmission nut two (102) fixed on a slide plate (64) and threadedly connected to the lead screw four (101), and a servo motor two (103) driving the lead screw four (101) to rotate. The lead screw four (101) is parallel between two guide rods three (63). The servo motor two (103) is fixed to the top of the L-shaped plate (6). The upper end of the lead screw four (101) rotates out of the rectangular through hole (62) and is fixedly connected to the output end of the servo motor two (103).

10. A sealing mechanism for rice packaging according to claim 1, characterized in that: The top of the rice bag support plate (8) is fixedly provided with a square protrusion (82) that can be inserted into the middle of the rice bag positioning frame (9).

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