Metering, filling and sealing packaging machine for milk powder

Abstract

The utility model discloses a milk powder metering, filling, sealing and packaging machine, and relates to the technical field of milk powder sealing and packaging, the milk powder metering, filling, sealing and packaging machine comprises a material conveying pipe, a first inner sleeve is slidably sleeved in the material conveying pipe, a second inner sleeve is slidably sleeved in the first inner sleeve, an L-shaped supporting plate is fixedly connected to the first inner sleeve, and the L-shaped supporting plate is fixedly connected to the second inner sleeve. Heat sealing mechanisms are symmetrically arranged on the two sides of the L-shaped supporting plate, each heat sealing mechanism comprises a connecting plate, an abutting plate and a heat sealing device are fixedly connected to the connecting plate, and a flexible sponge is fixedly connected to the side, close to the output end of the heat sealing device, of the abutting plate; the L-shaped supporting plate is provided with a driving mechanism used for driving the connecting plates to get close to each other or get away from each other, and the conveying pipe is fixedly provided with a first lifting assembly used for driving the L-shaped supporting plate to ascend and descend. In the whole using process, the bag opening of the packaging bag is kept stable under the action of the flexible sponge and the conveying cylinder, and therefore the sealing effect of the packaging bag is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of milk powder sealing and packaging technology, specifically to a milk powder metering, filling, sealing, and packaging machine. Background Technology

[0002] Sealed packaging for milk powder refers to a packaging process that involves sealing the packaging bags containing milk powder. This type of packaging primarily targets milk powder bags, using specific sealing techniques and equipment to tightly seal the opening of the packaging bag, ensuring that the milk powder inside remains dry and fresh, and effectively preventing oxidation, moisture, and contamination.

[0003] Sealing packaging machines are commonly used sealing devices in the sealing and packaging of milk powder. During operation, the packaging bag containing milk powder is first placed in the designated position on the machine, ensuring the bag opening is flat and aligned. Then, the machine starts, and the automatic metering system precisely controls the amount of milk powder filled. After filling, the packaging bag is conveyed to the sealing area. The sealing device heats and applies pressure to the bag opening, causing the material on both sides of the opening to melt and bond tightly, forming a strong seal. After sealing, the packaging bag is automatically discharged. The entire packaging process is efficient and continuous, greatly improving the efficiency and quality of milk powder packaging.

[0004] The shortcomings of existing technical solutions are that when using a milk powder metering, filling, and sealing packaging machine, the packaging bags may be affected by vibration or airflow during placement, leading to misalignment of the bag openings. This misalignment causes uneven material thickness distribution at the sealing area, making it impossible for the heating strip to apply pressure evenly during sealing, thus adversely affecting the sealing effect. Utility Model Content

[0005] The purpose of this utility model is to provide a milk powder metering, filling, sealing and packaging machine to solve the technical problem in the prior art where the packaging bag may be affected by vibration or airflow during placement, resulting in misalignment of the bag opening.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] A milk powder metering, filling, sealing, and packaging machine includes a feeding pipe, a first inner sleeve slidably sleeved inside the feeding pipe, a second inner sleeve slidably sleeved inside the first inner sleeve, an L-shaped support plate fixedly connected to the first inner sleeve, heat sealing mechanisms symmetrically arranged on both sides of the L-shaped support plate, each heat sealing mechanism including a connecting plate, a pressure plate and a heat sealing device fixedly connected to the connecting plate, a flexible sponge fixedly connected to the side of the pressure plate near the output end of the heat sealing device, a driving mechanism for moving the connecting plates closer or further apart on the L-shaped support plate, a first lifting assembly for raising and lowering the L-shaped support plate fixedly installed on the feeding pipe, and a second lifting assembly for raising and lowering the second inner sleeve fixedly installed on the L-shaped support plate.

[0008] As a further embodiment of this utility model: each group of flexible sponges has a downward sloping surface on the side away from the pressure plate.

[0009] As a further embodiment of this utility model: a conveying cylinder is fixedly connected to the lower end of the second inner sleeve, the conveying cylinder being adapted to the shape of the opening of the packaging bag, and the size of the conveying cylinder gradually narrows from top to bottom.

[0010] As a further embodiment of this utility model, the side of the conveying cylinder is coated with a thermoplastic polyurethane coating.

[0011] As a further embodiment of this utility model: the L-shaped support plate has symmetrically extended limiting openings on both sides for limiting the corresponding connecting plates.

[0012] As a further embodiment of this utility model: each set of limiting ports has a limiting groove on its inner side, and each set of connecting plates is rotatably connected with a pulley that cooperates with the corresponding limiting groove.

[0013] As a further embodiment of this utility model: the driving mechanism includes a dual-axis motor fixedly connected to an L-shaped support plate. Both output ends of the dual-axis motor are coaxially fixedly connected to threaded rods. Each set of connecting plates is fixedly connected to a threaded block that mates with the corresponding threaded rod. The internal thread directions of the two sets of threaded blocks are opposite.

[0014] As a further embodiment of this utility model: the first lifting assembly includes a first electric telescopic rod fixedly connected to the material conveying pipe, the telescopic end of the first electric telescopic rod being fixedly connected to an L-shaped support plate; the second lifting assembly includes a second electric telescopic rod fixedly connected to the L-shaped support plate, the telescopic end of the second electric telescopic rod being fixedly connected to a second inner sleeve.

[0015] As a further embodiment of this utility model: positioning blocks are fixedly connected to both sides of the L-shaped support plate, and the end of each set of threaded rods away from the dual-axis motor is rotatably connected to the corresponding positioning block.

[0016] As a further aspect of this utility model: the extension distance of the output end of the heat sealing device is greater than the extension distance of the pressing surface of the matching pressing plate.

[0017] The beneficial effects of this utility model are:

[0018] 1. During the sealing process, the second lifting assembly slowly moves the second inner sleeve and the conveyor cylinder upwards, gradually detaching the conveyor cylinder from the packaging bag. Simultaneously, the dual-axis motor drives the threaded rod to rotate, which in turn moves the two sets of connecting plates along the limiting opening. The flexible sponge squeezes the opening of the packaging bag, causing the bag opening to gradually close from bottom to top until the lower end of the conveyor cylinder detaches from the packaging bag. The heat-sealing device presses against both sides of the packaging bag, performing a heat-sealing process on the bag opening. Throughout the process, the bag opening remains stable under the action of the flexible sponge and the conveyor cylinder, thus ensuring the sealing effect of the packaging bag.

[0019] 2. After the milk powder filling is completed, the first lifting component retracts, which drives the L-shaped support plate, conveying cylinder, pressure plate and flexible sponge to move upward, thereby driving the packaging bag to move upward, so that the packaging bag between the flexible sponge and the conveying cylinder is tightened, reducing the overlap of the packaging bag opening, thereby realizing the adjustment of the packaging bag opening state.

[0020] 3. In use, the present invention has a thermoplastic polyurethane coating applied to the side of the conveyor cylinder. The smooth properties of this coating help to reduce the friction and resistance generated when the conveyor cylinder is pulled out of the packaging bag, thereby reducing the wear on the packaging bag and the surface of the conveyor cylinder. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the structure of the packaging bag before filling according to this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the packaging bag during filling according to this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the packaging bag after filling according to this utility model;

[0025] Figure 4 This is a schematic diagram of the drive mechanism structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the heat sealing mechanism of this utility model.

[0027] In the diagram: 1. Feeding pipe; 2. First inner sleeve; 3. L-shaped support plate; 4. Second inner sleeve; 5. Heat sealing mechanism; 501. Threaded block; 502. Connecting plate; 503. Pulley; 504. Pressure plate; 505. Flexible sponge; 506. Heat sealing device; 6. Drive mechanism; 601. Dual-axis motor; 602. Threaded rod; 7. Conveying cylinder; 8. First lifting assembly; 9. Second lifting assembly; 10. Limiting port; 11. Limiting groove; 12. Packaging bag. Detailed Implementation

[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1-5 As shown, a milk powder metering, filling, sealing, and packaging machine includes a feeding pipe 1, a first inner sleeve 2 slidably sleeved inside the feeding pipe 1, an L-shaped support plate 3 fixedly connected to the first inner sleeve 2, a first lifting assembly 8 fixedly installed on the feeding pipe 1 for driving the L-shaped support plate 3 to rise and fall, a second inner sleeve 4 slidably sleeved inside the first inner sleeve 2, and a second lifting assembly 9 fixedly installed on the L-shaped support plate 3 for driving the second inner sleeve 4 to rise and fall. The first lifting assembly 8 includes a first electric telescopic rod fixedly connected to the feeding pipe 1, the telescopic end of the first electric telescopic rod being fixedly connected to the L-shaped support plate 3, and the second lifting assembly 9 includes a second electric telescopic rod fixedly connected to the L-shaped support plate 3, the telescopic end of the second electric telescopic rod being fixedly connected to the second inner sleeve 4.

[0030] The L-shaped support plate 3 has heat sealing mechanisms 5 symmetrically arranged on both sides. Each heat sealing mechanism 5 includes a connecting plate 502, on which a pressure plate 504 and a heat sealing device 506 are fixedly connected. The heat sealing device 506 is located above the pressure plate 504. Figure 1 As shown, the heat sealing device 506 is used to heat seal the opening of the packaging bag 12. A flexible sponge 505 is fixedly connected to the side of the pressure plate 504 near the output end of the heat sealing device 506. Each set of flexible sponges 505 has a downward slope on the side away from the pressure plate 504, and the packaging bag 12 is squeezed and positioned by the flexible sponge 505.

[0031] The lower end of the second inner sleeve 4 is fixedly connected to a conveying cylinder 7. The conveying cylinder 7 is adapted to the shape of the opening of the packaging bag 12. The size of the conveying cylinder 7 gradually narrows from top to bottom, so as to facilitate the conveying cylinder 7 to be pulled out from the inside of the packaging bag 12. The side of the conveying cylinder 7 is coated with a thermoplastic polyurethane coating. The smoothness of the thermoplastic polyurethane coating helps to reduce the friction and resistance of the conveying cylinder 7 during the extraction process.

[0032] The L-shaped support plate 3 is equipped with a drive mechanism 6 for moving the connecting plates 502 closer together or further apart. The drive mechanism 6 includes a dual-axis motor 601 fixedly connected to the L-shaped support plate 3. Threaded rods 602 are coaxially fixedly connected to the output ends of both sides of the dual-axis motor 601. Each connecting plate 502 has a threaded block 501 fixedly connected to the corresponding threaded rod 602, with the internal threads of the two sets of threaded blocks 501 having opposite directions. After the dual-axis motor 601 starts, it drives the two sets of threaded rods 602 to rotate, causing the two sets of threaded blocks 501 to move relative to each other, thereby moving the heat-sealing mechanism 5 closer together or further apart. Positioning blocks are fixedly connected to both sides of the L-shaped support plate 3. The end of each threaded rod 602 away from the dual-axis motor 601 is rotatably connected to the corresponding positioning block, thus maintaining the stability of the threaded rod 602 during rotation.

[0033] The L-shaped support plate 3 has symmetrically extending limiting openings 10 on both sides for limiting the corresponding connecting plates 502. Each limiting opening 10 has a limiting groove 11 inside. Each connecting plate 502 is rotatably connected to a pulley 503 that cooperates with the corresponding limiting groove 11. When the threaded block 501 drives the connecting plate 502 to move, the pulley 503 on the connecting plate 502 will move along the limiting groove 11, thereby ensuring the stability of the connecting plate 502 during movement and reducing the friction of the connecting plate 502 during movement.

[0034] The extension distance of the output end of the heat sealing device 506 is greater than the extension distance of the pressing surface of the matching pressing plate 504, thereby ensuring that the heat sealing device 506 can provide sufficient pressure to the opening of the packaging bag 12 when performing heat sealing.

[0035] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of the embodiments of this solution will now be explained in conjunction with specific application scenarios:

[0036] When in use, the staff attaches the packaging bag 12 onto the conveyor cylinder 7, starts the dual-shaft motor 601, the dual-shaft motor 601 drives the two sets of threaded rods 602 to rotate, the two sets of threaded rods 602 drive the two sets of threaded blocks 501 to move relative to each other along the limiting port 10, thereby driving the heat sealing mechanism 5 to move closer to each other, and driving the flexible sponges 505 on both sides to squeeze the two sides of the conveyor cylinder 7 to fix the packaging bag 12.

[0037] Milk powder is output from the feed pipe 1. After the milk powder passes through the second inner sleeve 4, it enters the packaging bag 12. After filling, the first lifting component 8 retracts, which drives the L-shaped support plate 3, the conveying cylinder 7, the pressure plate 504, and the flexible sponge 505 to move upward, thereby driving the packaging bag 12 to move upward. This tightens the packaging bag 12 between the flexible sponge 505 and the conveying cylinder 7, reducing the overlap of the bag opening of the packaging bag 12, thereby adjusting the state of the bag opening of the packaging bag 12.

[0038] The second lifting component 9 drives the second inner sleeve 4 and the conveying cylinder 7 to move slowly upward. The conveying cylinder 7 gradually detaches from the packaging bag 12. At the same time, the dual-axis motor 601 drives the threaded rod 602 to rotate, which in turn drives the two sets of connecting plates 502 to move along the limiting port 10. The flexible sponge 505 squeezes the opening of the packaging bag 12, so that the opening of the packaging bag 12 gradually closes from bottom to top until the lower end of the conveying cylinder 7 detaches from the packaging bag 12. The heat sealing device 506 presses against both sides of the packaging bag 12 to perform heat sealing treatment on the opening of the packaging bag 12. After sealing, the dual-axis motor 601 drives the threaded rod 602 to rotate and drive the heat sealing mechanism 5 to reset. The staff takes away the filled packaging bag 12, and the first lifting component 8 and the second lifting component 9 extend and reset, thus completing the sealing operation of the packaging bag 12.

[0039] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A milk powder metering, filling, sealing, and packaging machine, comprising a feeding pipe (1), characterized in that... The material conveying pipe (1) is slidably fitted with a first inner sleeve (2), and the first inner sleeve (2) is slidably fitted with a second inner sleeve (4). An L-shaped support plate (3) is fixedly connected to the first inner sleeve (2). Heat sealing mechanisms (5) are symmetrically arranged on both sides of the L-shaped support plate (3). Each heat sealing mechanism (5) includes a connecting plate (502). A pressure plate (504) and a heat sealing device (506) are fixedly connected to the connecting plate (502). A flexible sponge (505) is fixedly connected to the side of the pressure plate (504) near the output end of the heat sealing device (506). A driving mechanism (6) for driving the connecting plates (502) to move closer or further apart is provided on the L-shaped support plate (3). A first lifting component (8) for driving the L-shaped support plate (3) to rise and fall is fixedly provided on the material conveying pipe (1). A second lifting component (9) for driving the second inner sleeve (4) to rise and fall is fixedly provided on the L-shaped support plate (3).

2. The milk powder metering, filling, sealing, and packaging machine according to claim 1, characterized in that, Each set of flexible sponges (505) has a downward slope on the side away from the pressure plate (504).

3. The milk powder metering, filling, sealing, and packaging machine according to claim 1, characterized in that, The lower end of the second inner sleeve (4) is fixedly connected to a conveying cylinder (7), which is adapted to the shape of the opening of the packaging bag (12), and the size of the conveying cylinder (7) gradually narrows from top to bottom.

4. A milk powder metering, filling, sealing, and packaging machine according to claim 3, characterized in that, The side of the conveying cylinder (7) is coated with a thermoplastic polyurethane coating.

5. A milk powder metering, filling, sealing, and packaging machine according to claim 1, characterized in that, The L-shaped support plate (3) has symmetrically extended limiting openings (10) on both sides for limiting the corresponding connecting plates (502).

6. A milk powder metering, filling, sealing, and packaging machine according to claim 5, characterized in that, Each of the limiting ports (10) has a limiting groove (11) on its inner side, and each of the connecting plates (502) has a pulley (503) that rotatably connects to the corresponding limiting groove (11).

7. A milk powder metering, filling, sealing, and packaging machine according to claim 5, characterized in that, The drive mechanism (6) includes a dual-axis motor (601) fixedly connected to the L-shaped support plate (3). Both output ends of the dual-axis motor (601) are coaxially fixedly connected to threaded rods (602). Each set of connecting plates (502) is fixedly connected to a threaded block (501) that cooperates with the corresponding threaded rod (602). The internal thread directions of the two sets of threaded blocks (501) are opposite.

8. A milk powder metering, filling, sealing, and packaging machine according to claim 1, characterized in that, The first lifting assembly (8) includes a first electric telescopic rod fixedly connected to the conveying pipe (1), and the telescopic end of the first electric telescopic rod is fixedly connected to the L-shaped support plate (3). The second lifting assembly (9) includes a second electric telescopic rod fixedly connected to the L-shaped support plate (3), and the telescopic end of the second electric telescopic rod is fixedly connected to the second inner sleeve (4).

9. A milk powder metering, filling, sealing, and packaging machine according to claim 7, characterized in that, The L-shaped support plate (3) has positioning blocks fixedly connected to both sides, and the end of each threaded rod (602) away from the dual-axis motor (601) is rotatably connected to the corresponding positioning block.

10. A milk powder metering, filling, sealing, and packaging machine according to claim 1, characterized in that, The extension distance of the output end of the heat sealing device (506) is greater than the extension distance of the pressing surface of the matching pressing plate (504).

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