A feeding device for a packaging machine

Abstract

This utility model relates to a feeding device for a packaging machine, which includes a base. A raw material storage bin is located at the top of the base, and a feeding main pipe is fixedly connected to the bottom of the raw material storage bin. A feeding cylinder with a built-in electric valve is fixedly connected to the bottom of the feeding main pipe. Electrical guide rails are symmetrically fixedly connected to the left and right sides of the top of the base. Movable vertical rods are located at the top of the electrical guide rails. A transverse truss is fixedly connected between the two movable vertical rods. Two sets of suction cups are fixedly connected to the ends of the two transverse trusses that are close to each other. An L-shaped support rod is fixedly connected to the middle of the upper end of the transverse truss. In this feeding device for a packaging machine, the sealing structure formed by the electric push rod, the follow-up top bar, and the movable abutment rod utilizes the elasticity of the spring before heat sealing to tightly seal the feed port of the feeding cylinder with the built-in electric valve, greatly reducing the risk of dust spillage and ensuring a clean production environment.

Description

Technical Field

[0001] This utility model relates to a feeding device, and more particularly to a feeding device for a packaging machine applied in the field of feeding devices. Background Technology

[0002] The feeding device of a packaging machine uses the material's own gravity to transport the material to the packaging station through a hopper or bin. It has a simple structure and low cost, and is suitable for free-flowing granular and powdery materials, such as grains and fertilizers. However, it is difficult to achieve accurate measurement and is prone to material accumulation or blockage.

[0003] Chinese patent CN221820306U discloses a variable-speed feeding device for packaging machines, relating to the field of packaging machine feeding. Addressing the problem that existing feeding devices cannot easily switch feeding speeds, thus preventing packaging machines from packaging products of different specifications, the following solution is proposed: It includes a feeding box with an observation window on one side. An installation groove is provided on the feeding port, and a circular plate is mounted on the installation groove. The circular plate has multiple feeding holes of different sizes, which are used to change the feeding speed of the device. This utility model has a novel structure; by rotating the circular plate, the feeding holes of different sizes are aligned with the feeding port, thereby changing the feeding speed of the device.

[0004] When handling dusty materials, traditional equipment often uses open or simple sealed structures, with a large gap between the discharge port and the packaging bag. The impact force generated when the material falls can cause dust to fly, creating a "dust storm" phenomenon. This dust spillage leads to material loss and increased production costs. Furthermore, the dust in the air settles on equipment surfaces and throughout the production workshop, polluting the production environment. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by this utility model is that when feeding dusty materials, the previous devices mostly adopted open or simple sealed structures, and there was often a large gap at the connection between the discharge port and the packaging bag. The impact force generated when the material falls will cause dust to fly, forming a "dust" phenomenon. After this dust overflows, on the one hand, it will lead to material loss and increase production costs; on the other hand, the dust in the air will settle on the surface of the equipment and in various parts of the production workshop, polluting the production environment.

[0006] To solve the above problems, this utility model provides a feeding device for a packaging machine, including a base, a raw material storage bin at the upper end of the base, a feeding manifold fixedly connected to the lower end of the raw material storage bin, a feeding cylinder with an internal electric valve fixedly connected to the lower end of the feeding manifold, electric guide rails symmetrically fixedly connected to the left and right sides of the upper end of the base, movable vertical rods at the upper end of the electric guide rails, a transverse truss fixedly connected between the two movable vertical rods, two sets of suction cups fixedly connected to the ends of the two transverse trusses that are close to each other, an L-shaped support rod fixedly connected to the middle of the upper end of the transverse truss, an electric push rod fixedly connected to the vertical end of the L-shaped support rod, a follower top bar fixedly connected to the output end of the electric push rod, several hollow grooves respectively opened at the ends of the two follower top bars that are close to each other, a spring fixedly connected to the inner end of the hollow groove, and a movable abutment fixedly connected to the end of the spring away from the hollow groove.

[0007] In the above-mentioned packaging machine feeding device, this solution uses the sealing structure formed by the electric push rod, the follow-up top bar and the movable abutment rod to make the buffer contact surface tightly seal the feeding port of the built-in electric valve feeding cylinder before the heat melt sealing, which greatly reduces the risk of dust material spillage and ensures a clean production environment.

[0008] As a further improvement of this application, the end of the movable abutment away from the hollow groove is fixedly connected to a buffer contact surface, and the two corresponding buffer contact surfaces on the left and right sides are connected to each other.

[0009] As a further improvement to this application, multiple movable push rods and a built-in electric valve feeding cylinder cooperate with each other, and a packaging bag is placed between the two suction cups.

[0010] As a further improvement of this application, the built-in electric valve feeding cylinder extends into the packaging bag, and a conveying electric belt is installed between the left and right inner walls of the equipment base.

[0011] As another improvement of this application, multiple follower springs are fixedly connected to the outer side of the conveying electric belt, and the upper end of the follower springs is fixedly connected to the receiving bag plane.

[0012] As a further improvement to this application, a weight pressure sensor is fixedly connected to the upper middle part of the receiving bag plane, and the weight pressure sensor and the packaging bag cooperate with each other.

[0013] As a further improvement to this application, multiple anti-slip strips are fixedly connected to the upper end of the receiving bag plane, and the anti-slip strips and the packaging bag are in contact with each other.

[0014] In summary, through multi-component collaborative design, a highly efficient, precise, and low-pollution feeding process is achieved. The moving system, consisting of the equipment base, electric guide rails, and movable vertical rods, combined with suction cups, can quickly position and fix packaging bags, improving feeding efficiency. The material conveying unit, composed of the raw material storage bin, the main feeding pipe, and the built-in electric valve feeding cylinder, combined with a weight pressure sensor, can accurately control the amount of material fed, reducing material waste. At the same time, the sealing structure formed by the electric push rod, the follower top bar, and the movable abutment rod, utilizes the elasticity of the springs before heat fusion sealing to ensure that the buffer contact surface tightly seals the discharge port of the built-in electric valve feeding cylinder, greatly reducing the risk of dust spillage and ensuring a clean production environment. The electric conveying belt, follower springs, receiving bag support plane, and anti-slip strips work together to effectively prevent the bag from sliding and shifting during packaging, ensuring packaging stability and reliability, and meeting the dual requirements of packaging precision and efficiency in industrial production. Attached Figure Description

[0015] Figure 1 This is an isometric view of the raw material storage silo according to the first embodiment of this application;

[0016] Figure 2 This is a structural diagram of the device base according to the first and second embodiments of this application;

[0017] Figure 3 This is a diagram of the follower top bar according to the first embodiment of this application;

[0018] Figure 4 This is the first embodiment of the present application. Figure 3 Enlarged view of a partial truncation of the central moving top bar;

[0019] Figure 5 This is an enlarged view of the movable abutment rod according to the first embodiment of this application;

[0020] Figure 6 This is a structural diagram of the conveying electrical strip according to the second embodiment of this application;

[0021] Figure 7 This is an enlarged plan view of the receiving bag according to the second embodiment of this application.

[0022] Explanation of the labels in the diagram:

[0023] 1. Equipment base; 2. Main feeding pipe; 3. Raw material storage bin; 4. Built-in electric valve feeding cylinder; 5. Electric guide rail; 6. Moving vertical rod; 7. Horizontal truss; 8. Suction cup; 9. Follow-up top bar; 10. Displaceable support rod; 11. Hollow groove; 12. Spring; 13. Buffer contact surface; 15. L-shaped support upright; 16. Electric push rod; 17. Electric conveying belt; 18. Follow-up spring; 19. Material receiving bag plane; 20. Anti-slip strip; 21. Weight pressure sensor plate. Detailed Implementation

[0024] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0025] First implementation method:

[0026] Figures 1-5 A feeding device for a packaging machine is shown, including a base 1. A raw material storage bin 3 is provided at the upper end of the base 1. A feeding main pipe 2 is fixedly connected to the lower end of the raw material storage bin 3. A feeding cylinder 4 with an internal electric valve is fixedly connected to the lower end of the feeding main pipe 2. Electrical guide rails 5 are symmetrically fixedly connected to the left and right sides of the upper end of the base 1. A movable vertical rod 6 is provided at the upper end of the electrical guide rail 5. A horizontal truss 7 is fixedly connected between the two movable vertical rods 6. Two sets of suction cups 8 are fixedly connected to the ends of the two horizontal trusses 7 that are close to each other. An L-shaped support rod 15 is fixedly connected to the middle of the upper end of the horizontal truss 7. An electric push rod 16 is fixedly connected to the vertical end of the L-shaped support rod 15. A follower top bar 9 is fixedly connected to the output end of the electric push rod 16. Several hollow grooves 11 are opened at the ends of the two follower top bars 9 that are close to each other. A spring 12 is fixedly connected to the inner end of the hollow groove 11. A movable abutment rod 10 is fixedly connected to the end of the spring 12 that is away from the hollow groove 11.

[0027] Figures 2-5 The movable abutment 10 is shown to have a buffer contact surface 13 fixedly connected to one end away from the hollow groove 11. Two corresponding buffer contact surfaces 13 are connected to each other. Multiple movable abutment 10s and built-in electric valve feeding cylinder 4 cooperate with each other. A packaging bag is provided between two suction cups 8. The built-in electric valve feeding cylinder 4 extends into the packaging bag.

[0028] Figures 1-5This invention illustrates a feeding device for a packaging machine. During operation, the electrically conductive guide rails 5 on the left and right sides of the equipment base 1 drive the moving vertical rod 6 to move horizontally, thereby moving the transverse truss 7 and two connected suction cups 8. The suction cups 8 utilize negative pressure to adhere to and fix the opening of the packaging bag, pulling it open and positioning the bag opening appropriately. Material in the raw material storage bin 3 falls to the feeding main pipe 2 by gravity, and then is conveyed into the packaging bag through the built-in electrically controlled feeding cylinder 4. Subsequently, the electric push rod 16 on the L-shaped support rod 15 pushes the... The movable top bar 9 moves in opposite directions, and the movable abutment rod 10 connected to the movable top bar 9 via the spring 12, under the elastic action of the spring 12, tightly fits the edge of the discharge port of the built-in electric valve feeding cylinder 4 with the buffer contact surface 13. The movable abutment rod 10 forms a fit with the outer wall of the built-in electric valve feeding cylinder 4. At the same time, the spring 12 provides a constant preload force to ensure no gaps between the two. In addition, the buffer contact surface 13 is made of flexible rubber material, which can adaptively fill tiny gaps after being compressed, sealing the discharge port of the built-in electric valve feeding cylinder 4 to the greatest extent. The existing equipment utilizes its built-in sealing components to perform heat-sealing on the opening of the packaging bag. Because the movable abutment rod 10 evenly blocks the discharge port of the built-in electric valve feeding cylinder 4, it effectively prevents dust material from spilling out during the sealing process. After the heat-sealing is completed, the electric push rod 16 drives the follower top bar 9 to move back, and the movable abutment rod 10 releases the blockage on the discharge port under the reset action of the spring 12. Through the collaborative design of multiple components, a highly efficient, precise, and low-pollution feeding process is achieved. The equipment base 1, electric guide rail 5, and movable vertical rod 6 are included. The mobile system, in conjunction with the suction cup 8, can quickly position and fix the packaging bag, improving the feeding efficiency. The material conveying unit, consisting of the raw material storage bin 3, the feeding main pipe 2, and the built-in electric valve feeding cylinder 4, combined with the weight pressure sensor 21, can accurately control the amount of material fed, reducing material waste. At the same time, the sealing structure formed by the electric push rod 16, the follow-up top bar 9, and the movable abutment rod 10, uses the elasticity of the spring 12 before the heat-melting seal to make the buffer contact surface 13 tightly seal the feeding port, greatly reducing the risk of dust spillage and ensuring a clean production environment.

[0029] Second implementation method:

[0030] Figure 2 , Figures 6-7This invention illustrates a feeding device for a packaging machine. A conveying electric belt 17 is installed between the left and right inner walls of the equipment base 1. Multiple follower springs 22 are fixedly connected to the outer side of the conveying electric belt 17. A receiving bag support plane 19 is fixedly connected to the upper end of each follower spring 22. A weight pressure sensor 21 is fixedly connected to the middle of the upper end of the receiving bag support plane 19. The weight pressure sensor 21 cooperates with the packaging bag. Multiple anti-slip strips 20 are fixedly connected to the upper end of the receiving bag support plane 19, and the anti-slip strips 20 contact the packaging bag. During material conveying, the inner walls of the equipment base 1... The conveying electric belt 17 operates, and the follower spring 22 on its outer side provides auxiliary support for the packaging bag placed on the receiving bag support plane 19. The weight pressure sensor 21 on the receiving bag support plane 19 monitors the weight of the material inside the packaging bag in real time. When the preset weight value is reached, a signal is sent to the system to control the built-in electric valve to close and stop feeding. At the same time, the anti-slip strip 20 on the receiving bag support plane 19 contacts the packaging bag to increase friction and prevent the packaging bag from sliding or shifting during feeding and weighing, ensuring that the entire feeding process is stable and accurate.

[0031] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A packaging machine feeding device, characterized by: The equipment includes a base (1), with a raw material storage bin (3) at the upper end of the base (1). A feeding manifold (2) is fixedly connected to the lower end of the raw material storage bin (3). A feeding cylinder (4) with an internal electric valve is fixedly connected to the lower end of the feeding manifold (2). Electrical guide rails (5) are symmetrically fixedly connected to the left and right sides of the upper end of the base (1). A movable vertical rod (6) is provided at the upper end of the electrical guide rail (5). A transverse truss (7) is fixedly connected between the two movable vertical rods (6). The two transverse trusses (7) are fixed at their closest points. Two sets of suction cups (8) are fixedly connected. An L-shaped support rod (15) is fixedly connected to the upper middle part of the transverse truss (7). An electric push rod (16) is fixedly connected to the vertical end of the L-shaped support rod (15). A follower top bar (9) is fixedly connected to the output end of the electric push rod (16). Several hollow grooves (11) are opened at the ends of the two follower top bars (9) that are close to each other. A spring (12) is fixedly connected to the inner end of the hollow groove (11). A movable abutment rod (10) is fixedly connected to the end of the spring (12) away from the hollow groove (11).

2. A packaging machine infeed apparatus according to claim 1, characterized in that: The movable abutment (10) is fixedly connected to a buffer contact surface (13) at one end away from the hollow groove (11), and the two corresponding buffer contact surfaces (13) are connected to each other.

3. A packaging machine feeding device according to claim 1, characterized in that: Multiple movable push rods (10) and built-in electric valve feeding cylinder (4) cooperate with each other, and a packaging bag is provided between the two suction cups (8).

4. A packaging machine infeed apparatus according to claim 3, characterized in that: The built-in electric valve feeding cylinder (4) extends into the packaging bag, and a conveying electric belt (17) is installed between the left and right inner walls of the equipment base (1).

5. A packaging machine infeed apparatus according to claim 4, characterised in that: Multiple follower springs (22) are fixedly connected to the outer side of the conveying electric belt (17), and the upper end of the follower spring (22) is fixedly connected to the receiving bag plane (19).

6. A packaging machine infeed apparatus according to claim 5, characterised in that: A weight pressure sensor (21) is fixedly connected to the upper middle part of the receiving bag plane (19), and the weight pressure sensor (21) and the packaging bag cooperate with each other.

7. A packaging machine infeed apparatus according to claim 6, characterised in that: Multiple anti-slip strips (20) are fixedly connected to the upper end of the receiving bag plane (19), and the anti-slip strips (20) are in contact with the packaging bag.

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