A dust-proof automatic cement packaging machine

Abstract

This utility model discloses an automatic cement packaging machine with dust prevention, belonging to the field of cement packaging technology. It includes a machine casing, with a conveying mechanism installed on the top of the casing. One end of the conveying mechanism is connected to a feeding pipe. A support frame is provided on one side of the casing, and a feeding frame is connected to the top of the conveying mechanism. Support bars are provided on both sides of the support frame, and support blocks are provided on the top of each support bar. Two sliders are slidably connected between the two support blocks, and heating plates are installed at the bottom of the two sliders. Clamping components for holding the packaging bag are provided on the support bars. By sliding the two sliders, the two heating plates are brought closer together, achieving automatic sealing of the packaging bag. This is less labor-intensive than manually pressing the heating plates, reducing the operator's workload. Simultaneously, the heating plates press the bag opening tightly as they approach the sealing point, reducing dust escape during the sealing process.

Description

Technical Field

[0001] This utility model relates to the field of cement packaging technology, specifically to an automatic cement packaging machine that prevents dust. Background Technology

[0002] Cement is a hydraulic cementitious material, its core component being silicate minerals. When mixed with water, it hardens and binds aggregates such as sand and gravel to form solid concrete, a core material in construction engineering. Automatic cement packaging machines are specialized automated equipment in the construction materials industry. Their core function is to quantitatively measure and automatically bag dry, loose cement powder. In existing technologies, the bag opening cannot completely seal the bottom of the aggregate bin, causing cement falling into the bag to rise and float out, resulting in a large amount of dust entering the air and adversely affecting the health of workers. However, the cement packaging machine with announcement number CN219707351U, when packaging cement, places the cement bag under the bottom of the discharge pipe, activates the cylinder to clamp the cement bag to the discharge pipe, starts the motor to rotate the flap, opening the discharge pipe, and once the cement is full, activates the cylinder to retract the clamp, removing the cement bag, thus completing the packaging process. Using curved clamps to secure cement bags ensures that there are no gaps after the bags are tightened, thus preventing cement dust from being generated during the filling process.

[0003] While the above technology can avoid cement dust during the cement bagging process, it has the problem of not being able to seal the bagged cement. Cement is a dry and loose powder, and the unsealed bag opening will continue to emit dust, especially during handling and stacking, the dust diffusion range will be greatly expanded. Utility Model Content

[0004] The purpose of this utility model is to provide a dust-proof automatic cement packaging machine to solve the problem mentioned in the background art that current packaging machines on the market cannot seal the bagged cement.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dust-proof automatic cement packaging machine, comprising a machine casing, a conveying mechanism installed on the top of the machine casing, a material conveying pipe connected to one end of the conveying mechanism, a support frame provided on one side of the machine casing, a feeding frame connected to the top of the conveying mechanism, support bars provided on both sides of the support frame, and support blocks provided on the top of the two support bars, two sliders slidably connected between the two support blocks, and heating plates installed at the bottom of the two sliders, a clamping component for clamping the packaging bag provided on the support bars, and a striking component for striking the feeding frame provided on the support frame.

[0006] Preferably, the clamping assembly includes four fixing blocks respectively disposed at both ends of the two support bars, and each fixing block is slidably connected to a connecting post. One end of each of the two connecting posts on both sides is provided with a support ring, and one side of each of the two support rings is connected to a clamping ring by a spring.

[0007] Preferably, each of the two support bars is provided with a support frame at its top, and each of the two support frames is rotatably connected to a rotating shaft. Each of the two rotating shafts is provided with a second rotating gear at its bottom. Each of the two support bars is slidably connected to a second rack that meshes with the two second rotating gears. Each of the two second racks is connected to a two support ring.

[0008] Preferably, the outer surfaces of both rotating shafts are provided with first rotating gears, the two first rotating gears are respectively meshed with first racks, and the two first racks are respectively connected by a connecting plate and two sliders.

[0009] Preferably, the striking assembly includes two rotating rods rotatably connected to both sides of the support frame, each of the two rotating rods having an eccentric wheel at both ends, and each of the two rotating rods having a bevel gear meshing with the top of the two rotating shafts at one end.

[0010] Preferably, a drive motor is installed at one end of one of the support blocks, and the output end of the drive motor is provided with a bidirectional lead screw rotatably connected to one end of another support block. The threads at both ends of the bidirectional lead screw are respectively threaded into the interior of two sliders. A first limiting rod is also provided between the two support blocks and slidably connected into the interior of the slider.

[0011] Preferably, an electric push rod is installed at one end of the support frame, and a push plate is provided at the output end of the electric push rod. The two ends of the push plate are respectively provided with second limiting rods slidably connected inside the support frame. A weighing plate is provided at the bottom of the support frame, and a weighing sensor electrically connected to the electric push rod and the drive motor is provided inside the weighing plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By sliding two sliders, the two heating plates are brought closer together, achieving the effect of automatic sealing of the packaging bag. This is less labor-intensive than manually pressing the heating plates, reducing the workload of operators. As the heating plates approach the sealing area, they can simultaneously press the bag opening, reducing dust leakage during the sealing process.

[0013] The clamping components effectively hold and fix the packaging bag to the conveying pipe, ensuring a tight fit between the bag opening and the pipe, eliminating gaps between them, and preventing cement dust from escaping at the source. This eliminates the need for operators to hold the bag opening in place throughout the process, reducing labor intensity.

[0014] The set-up tapping component achieves the effect of intermittently tapping the feed frame. The cement strip is easily attracted to the inner wall of the feed frame due to static electricity. The tapping force can make the attached dust fall off, preventing the accumulated material from clumping and affecting the feeding efficiency or even blocking the channel. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the front structure of this utility model; Figure 3 This is a schematic diagram of the connection structure between the support strip and the support block of this utility model; Figure 4 This is a schematic diagram of the connection structure between the support frame and the weighing plate of this utility model; Figure 5 This utility model Figure 1 Enlarged structural diagram at point A; Figure 6 This utility model Figure 3 A magnified structural diagram at point B in the middle.

[0016] In the diagram: 1. Chassis; 2. Conveying mechanism; 3. Feeding pipe; 4. Feeding frame; 5. Support bar; 6. Support block; 7. Slider; 8. Heating plate; 9. Connecting column; 10. Support ring; 11. Clamping ring; 12. Rotating shaft; 13. First rotating gear; 14. First rack; 15. Second rotating gear; 16. Second rack; 17. Rotating rod; 18. Eccentric wheel; 19. Support frame; 20. Weighing plate; 21. Push plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] This utility model provides the following technical solution: an automatic cement packaging machine with dust prevention function. Example 1: To solve the problem that existing packaging machines cannot seal bagged cement, the following is disclosed: a machine housing 1, wherein a conveying mechanism 2 (e.g., ...) is installed on the top of the machine housing 1. Figure 1 and Figure 2As shown), one end of the conveying mechanism 2 is connected to a conveying pipe 3 for conveying cement. A support frame 19 is provided on one side of the casing 1, and a feed frame 4 is connected to the top of the conveying mechanism 2. Support bars 5 are provided on both sides of the support frame 19, and support blocks 6 are provided on the top of each of the two support bars 5. Two sliders 7 are slidably connected between the two support blocks 6, and heating plates 8 are installed at the bottom of the two sliders 7 (e.g., Figures 1-4 As shown), the support bar 5 is provided with a clamping assembly for clamping the packaging bag. The clamping assembly includes four fixing blocks respectively disposed at both ends of the two support bars 5, and each fixing block is slidably connected with a connecting post 9. One end of each of the two connecting posts 9 on both sides is provided with a support ring 10. One side of each of the two support rings 10 is connected to a clamping ring 11 by a spring for clamping and fixing the packaging bag. The top of each of the two support bars 5 is provided with a support frame, and each of the two support frames is rotatably connected with a rotating shaft 12. The bottom of each of the two rotating shafts 12 is provided with a second rotating gear 15. The two support bars 5 are respectively slidably connected with a second rack 16 that meshes with the two second rotating gears 15 (e.g., Figures 4-6 As shown), the two second racks 16 are respectively connected to the two support rings 10. The outer surfaces of the two rotating shafts 12 are provided with first rotating gears 13. The two first rotating gears 13 are respectively meshed with first racks 14. The two first racks 14 are respectively connected to the two sliders 7 through connecting plates. One end of one support block 6 is equipped with a drive motor, and the output end of the drive motor is provided with a bidirectional lead screw rotatably connected to one end of the other support block 6. The threads at both ends of the bidirectional lead screw are respectively threaded into the two sliders 7. A first limiting rod is also provided between the two support blocks 6 and slidably connected inside the sliders 7. One end of the support frame 19 is equipped with an electric push rod, and the output end of the electric push rod is provided with a push plate 21 (as shown). Figure 1 , Figure 2 and Figure 4 As shown), the push plate 21 has a second limiting rod that is slidably connected to the inside of the support frame 19 at both ends. The bottom of the support frame 19 has a weighing plate 20 for weighing cement. The weighing plate 20 has a weighing sensor that is electrically connected to the electric push rod and the drive motor.

[0019] First, the operator places an empty packaging bag over the outlet end of the conveying pipe 3, ready to receive cement. Then, the cement enters the conveying mechanism 2 through the feed frame 4. The conveying mechanism 2 stably conveys the cement to the conveying pipe 3 (e.g., ...). Figures 2-5As shown), the cement is finally injected into the pre-packaged bags. The bags are then placed on the weighing plate 20. During the filling process, the weighing sensor continuously monitors the weight of the cement inside the bag. As the total weight on the weighing plate 20 increases with the filling of cement, the elastic element inside the weighing sensor undergoes slight deformation due to the weight pressure. This deformation is converted into an electrical signal, which is transmitted to the equipment control unit in real time. The control unit continuously receives the electrical signal and converts it into a specific weight value, displaying the current weight of the cement in the bag in real time. Simultaneously, it compares this weight with the preset standard weight. When the real-time detected weight reaches a preset threshold, the control unit can send a signal in advance to stop the conveying mechanism 2 from conveying material (e.g., ...). Figure 1 and Figure 2 As shown), the drive motor is started synchronously, and then the drive motor drives the bidirectional lead screw to rotate. Then, under the action of the first limit rod, it drives the slider 7 to move closer together, and drives the two heating plates 8 to move closer together. The heating plates 8 are preheated to a preset temperature. When the two heating plates 8 are in contact with the bag opening, the bag opening is heat-sealed. When the slider 7 moves closer together, under the action of the connecting plate, it also drives the first rack 14 to move synchronously. Then, under the action of the first rotating gear 13, it drives the rotating shaft 12 to rotate, and further drives the second rotating gear 15 to rotate. The first rack 14 moves the second rack 16 and the connecting column 9 together, causing the two support rings 10 to move away from each other, thus releasing the fixation of the packaging bag. Then the electric push rod starts, and under the action of the second limit rod, it pushes the push plate 21. The push plate 21 pushes the sealed bagged cement from the weighing plate 20 to the subsequent conveying or storage area. The electric push rod then resets, and the operator puts on an empty packaging bag again. The drive motor is then started, causing the heating plate 8 to move away from each other. As it moves away, the support rings 10 will move closer together under the action of the first rack 14 and the second rack 16 (e.g., ...). Figure 4 and Figure 5 As shown), the support ring 10 pushes the clamping ring 11 through the spring, and finally the two clamping rings 11 tightly clamp the opening of the packaging bag to the outer wall of the conveying pipe 3 to achieve sealing and fixation, and prevent dust from escaping or the bag from shifting during sealing.

[0020] Example 2: Unlike Example 1, the provided striking component can intermittently strike the feed frame 4. It is disclosed that the support frame 19 is equipped with a striking component for striking the feed frame 4. The striking component includes two rotating rods 17 respectively rotatably connected to both sides of the support frame 19 (e.g., ...). Figure 1 and Figure 2 As shown), both ends of the two rotating rods 17 are provided with eccentric wheels 18 for intermittently striking the feed frame 4. One end of the two rotating rods 17 and the top of the two rotating shafts 12 are respectively provided with bevel gears that mesh with each other.

[0021] When the rotating shaft 12 rotates, it will further drive the rotating rod 17 to rotate under the action of the bevel gear, and then the rotating rod 17 will further drive the eccentric wheel 18 to rotate (e.g. Figure 1 and Figure 2 As shown), thus causing it to intermittently strike the feed frame 4.

[0022] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0023] The contents not described in detail in this specification are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dust-proof automatic cement packaging machine, comprising a machine housing (1), wherein a conveying mechanism (2) is installed on the top of the machine housing (1), and one end of the conveying mechanism (2) is connected to a material conveying pipe (3); Its features are: The machine box (1) has a support frame (19) on one side, the top of the conveying mechanism (2) is connected to the feeding frame (4), the support frame (19) has support bars (5) on both sides, and the top of the two support bars (5) has support blocks (6), the two support blocks (6) are slidably connected to two sliders (7), and the bottom of the two sliders (7) is equipped with heating plates (8), the support bars (5) are equipped with clamping components for clamping the packaging bag, and the support frame (19) is equipped with a striking component for striking the feeding frame (4).

2. The dust-proof automatic cement packaging machine according to claim 1, characterized in that: The clamping assembly includes four fixing blocks respectively disposed at both ends of the two support bars (5), and each fixing block is slidably connected with a connecting post (9). One end of each of the two connecting posts (9) on both sides is provided with a support ring (10), and one side of each of the two support rings (10) is connected to a clamping ring (11) by a spring.

3. The dust-proof automatic cement packaging machine according to claim 2, characterized in that: Each of the two support bars (5) is provided with a support frame at the top, and a rotating shaft (12) is rotatably connected inside the two support frames. A second rotating gear (15) is provided at the bottom of each of the two rotating shafts (12). A second rack (16) that meshes with the two second rotating gears (15) is slidably connected inside the two support bars (5). The two second racks (16) are respectively connected to the two support rings (10).

4. The dust-proof automatic cement packaging machine according to claim 3, characterized in that: The outer surfaces of the two rotating shafts (12) are provided with first rotating gears (13), and the two first rotating gears (13) are respectively meshed with first racks (14). The two first racks (14) are respectively connected by connecting plates and two sliders (7).

5. The dust-free cement automatic packing machine according to claim 1, characterized in that: The striking assembly includes two rotating rods (17) that are rotatably connected to both sides of the support frame (19). Both ends of the two rotating rods (17) are provided with eccentric wheels (18), and one end of the two rotating rods (17) is provided with bevel gears that mesh with each other on the top of the two rotating shafts (12).

6. The dust-free cement automatic packing machine according to claim 1, characterized in that: One end of one of the support blocks (6) is equipped with a drive motor, and the output end of the drive motor is provided with a bidirectional lead screw that is rotatably connected to one end of another support block (6). The threads at both ends of the bidirectional lead screw are respectively threaded into the interior of two sliders (7). A first limiting rod that is slidably connected into the interior of the slider (7) is also provided between the two support blocks (6).

7. The dust-proof automatic cement packing machine according to claim 6, characterized in that: An electric push rod is installed at one end of the support frame (19), and a push plate (21) is provided at the output end of the electric push rod. The two ends of the push plate (21) are respectively provided with a second limiting rod that is slidably connected inside the support frame (19). A weighing plate (20) is provided at the bottom of the support frame (19). A weighing sensor that is electrically connected to the electric push rod and the drive motor is provided inside the weighing plate (20).

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