Filling material recovery, venting system

Abstract

The filling material recycling and exhaust system comprises an exhaust hood and a material recycling box. The top of the exhaust hood is provided with a material gun hole, the bottom of the exhaust hood is provided with a packaging barrel attaching opening, and the sidewall of the exhaust hood is provided with an air suction opening. The material recycling box is connected to one side of the material gun hole in a hanging manner. The material recycling box is provided with horizontally arranged cushion blocks, and the front end of the material recycling box exceeds the front end of the cushion blocks. The filling material recycling and exhaust system is designed in an integrated structure, and is provided with a material gun hole through which the material gun passes. The downward movement of the material gun forces the material recycling box to turn down and open, so that the collected material in the box is poured into the packaging barrel. The cushion blocks can be attached to the pipe wall of the material gun, and the remaining material in the material recycling box can flow into the packaging barrel along the pipe wall of the material gun through the sharp corners at the front end, thereby completely avoiding the leakage and pollution of the material.

Description

Technical Field

[0001] This invention relates to the field of filling machines, and in particular to filling material recovery and exhaust systems. Background Technology

[0002] Currently, filling, material recovery, and venting are three independent systems in a typical filling machine. This is determined by the working requirements of the filling machine. For large filling machines, the filling gun needs to be inserted into the packaging barrel to perform the filling operation.

[0003] As filling progresses, the gas space inside the packaging drum becomes increasingly smaller, forcing the gas out through the drum's opening. Therefore, the suction and exhaust systems are typically located at the drum's opening. Furthermore, these systems need to interface with both the filling gun and the drum opening, which presents challenges to their structural design.

[0004] In addition, after filling is completed, the nozzle needs to be removed from the packaging barrel. Since some material will inevitably remain on the bottom valve structure of the nozzle, after the nozzle is removed from the packaging barrel, another material recovery device needs to be moved below the bottom valve of the nozzle to prevent the material remaining on the bottom valve from dripping onto the packaging barrel.

[0005] The three structures mentioned above are independent of each other in conventional design. Therefore, during the operation, after each process is completed, it is necessary to accurately control the corresponding operation to ensure stable connection between the steps, which places higher demands on the process structure.

[0006] Based on the current state of the technology, designing a device that integrates material recovery and venting, and is automatically compatible with the material gun, would undoubtedly solve the problems of the existing technology. Summary of the Invention

[0007] The technical problem to be solved by the embodiments of the present invention is to provide a filling material recovery and exhaust system, thereby solving the problem that the filling, exhaust and material recovery mechanisms of traditional filling machines are independent of each other and have high requirements for process coordination.

[0008] To address the aforementioned technical problems, this invention provides a filling material recovery and exhaust system, including an exhaust hood with a forced-turning material recovery box inside. The top of the exhaust hood has a material gun hole, the bottom has a packaging barrel fitting opening, and the side wall of the exhaust hood has an air intake. The material gun hole is for the material gun to pass through, the packaging barrel fitting opening is located directly below the material gun hole, the size of the packaging barrel fitting opening is larger than the size of the material gun hole, and the packaging barrel fitting opening is used to fit around the opening of the packaging barrel. The material recovery box is suspended and connected to one side of the material gun hole. A horizontally arranged pad is provided on the material recovery box. The front ends of both the material recovery box and the pad are located inside the material gun hole and extend beyond the center line of the material gun hole, and the front end of the material recovery box extends beyond the front end of the pad.

[0009] The exhaust hood includes a surrounding panel, a top panel, and a front panel. The surrounding panel has a U-shaped structure, and the front panel is connected to the surrounding panel to form a square frame structure. The top panel is fixedly connected to the top of the surrounding panel, and the front panel is rotatably connected to the top panel, so that it can be flipped open and closed relative to the surrounding panel. Correspondingly, the air intake is provided on the surrounding panel and is sealed to an external air intake duct.

[0010] The front panel is made of a transparent material.

[0011] The front end of the enclosure is a downward sloping surface, which allows the front panel to close with the enclosure under the action of gravity.

[0012] It also includes a movable block, connected to the enclosure, for fixing the enclosure and controlling the movement of the exhaust hood by means of an external driving force.

[0013] The pad is made of plastic.

[0014] The front end of the pad is cylindrical; corresponding to the position directly below the material gun hole, the pad is provided with a drainage slope that slopes downward and backward toward the material recycling box, and a drainage hole that runs vertically through the end of the drainage slope.

[0015] The pad below the cylindrical surface is provided with a longitudinal upper groove, which also communicates with the drainage hole.

[0016] The two sides of the drainage slope are the main planes of the pad blocks.

[0017] The material recycling box includes a base plate arranged longitudinally with a V-shaped cross-section, side plates connected to both sides of the base plate, and a rear plate connected to the rear of the base plate. The two side plates are respectively provided with hook-shaped hanging ears. The base plate is inclined with the front higher than the rear, and the front end of the base plate forms a sharp corner structure with an obtuse angle, the end of which extends beyond the front end of the pad block.

[0018] On the side plate below the lug, there is a horizontally arranged elongated mounting hole, and the pad is connected to the elongated mounting hole through a mounting shaft.

[0019] A counterweight is also installed on the side plate behind the rear plate.

[0020] The filling material recovery and exhaust system provided by this invention integrates the exhaust hood and the material recovery box into a single structure. It also features a material gun hole through which the feeding gun passes. The downward movement of the feeding gun forces the material recovery box to flip open, allowing the collected material inside to be poured into the packaging barrel. The padding block can then fit against the tube wall of the feeding gun. Any remaining material in the material recovery box can flow into the packaging barrel through the pointed tip along the tube wall of the feeding gun, thus completely preventing material leakage and contamination. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the filling material recovery and exhaust system.

[0022] Figure 2 This is a schematic diagram of the overall structure of the filling material recovery and exhaust system.

[0023] Figure 3 A schematic diagram of the overall structure of the filling material recovery and exhaust system (side plates omitted).

[0024] Figure 4 A schematic diagram of the overall structure of the filling material recovery and exhaust system (side plates omitted).

[0025] Figure 5 This is a structural diagram of the material recycling box and its pad.

[0026] Figure 6 This is a structural diagram of the material recycling box and its pad.

[0027] Figure 7 This is a structural diagram of the material recycling box and its pad.

[0028] Figure 8 This is a schematic diagram of the first working state of the filling material recovery and exhaust system and the material gun.

[0029] Figure 9 This is a schematic diagram of the second working state of the filling material recovery and exhaust system and the material gun.

[0030] Figure 10 This is a schematic diagram of the filling material recovery and exhaust system in the second working state.

[0031] In the picture:

[0032] 1. Exhaust hood; 1a. Material gun port; 1b. Packaging drum sealing opening; 1c. Air intake; 11. Top plate; 12. Side plate; 13. Front plate;

[0033] 2. Pad; 21. Cylindrical surface; 22. Drainage slope; 23. Drainage hole; 24. Upper groove; 25. Mounting shaft;

[0034] 3. Material recycling box; 31. Base plate; 31a. Sharp corner structure; 32. Side plate; 32a. Hanging lug; 32b. Long mounting hole; 33. Back plate; 34. Counterweight. Detailed Implementation

[0035] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] like Figure 1-5 As shown, the present invention provides a filling material recovery and exhaust system, including an exhaust hood 1, inside which is a forced-turning material recovery box 3; the top of the exhaust hood 1 is provided with a material gun hole 1a, the bottom of the exhaust hood 1 is provided with a packaging barrel fitting opening 1b, and the side wall of the exhaust hood 1 is provided with an air intake 1c; wherein the material gun hole 1a is used for the material gun to pass through, the packaging barrel fitting opening 1b is located directly below the material gun hole 1a, the size of the packaging barrel fitting opening 1b is larger than the size of the material gun hole 1a, and the packaging barrel fitting opening 1b is used to fit around the opening of the packaging barrel; the material recovery box 3 is suspended and connected to one side of the material gun hole 1a, and a horizontally arranged pad 2 is provided on the material recovery box 3, the front end of the material recovery box 3 and the front end of the pad 2 are both located inside the material gun hole, and the front ends extend beyond the center line of the material gun hole 1a, and the front end of the material recovery box 3 extends beyond the front end of the pad 2.

[0037] The exhaust hood 1 includes a surrounding panel 12, a top panel 11, and a front panel 13. The surrounding panel 12 has a U-shaped structure, and the front panel 13 is connected to the surrounding panel 12 to form a square frame structure. The top panel 11 is fixedly connected to the top of the surrounding panel 12, and the front panel 13 is rotatably connected to the top panel 11, so that it can be flipped open and closed relative to the surrounding panel 12. Correspondingly, the air intake 1c is provided on the surrounding panel 12 and is sealed to the external air intake duct.

[0038] The front panel 13 is made of a transparent material.

[0039] The front end of the enclosure 12 is a downward sloping surface, which allows the front plate 13 to close with the enclosure 12 under the action of gravity.

[0040] It also includes a movable block connected to the enclosure 12 for fixing the enclosure 12 and controlling the movement of the exhaust hood 1 by means of an external driving force.

[0041] The pad 2 is made of plastic.

[0042] The front end of the pad 2 is a cylindrical surface 21; corresponding to the position directly below the material gun hole 1a, the pad 2 is provided with a drainage slope 22 that slopes downward and backward toward the material recycling box 3, and a drainage hole 23 that runs vertically through the drainage slope 22 is provided at the end of the drainage slope 22.

[0043] The pad 2 below the cylindrical surface 21 is provided with a longitudinal upper groove 24, which is also in communication with the drainage hole 23.

[0044] The two sides of the drainage slope 22 are the main planes of the pad block 2.

[0045] The material recycling box 3 includes a base plate 31 arranged longitudinally and having a V-shaped cross-section, side plates 32 connected to both sides of the base plate 31, and a rear plate 33 connected to the rear of the base plate 31. The two side plates 32 are respectively provided with hook-shaped hanging ears 32a. The base plate 31 is inclined with a higher front and a lower rear, and the front end of the base plate 31 forms an obtuse-angled pointed corner structure 31a, the end of which extends beyond the front end of the pad block 2.

[0046] On the side plate 32 below the hook 32a, there is a horizontally arranged elongated mounting hole 32b, and the pad 2 is connected to the elongated mounting hole 32b through a mounting shaft.

[0047] A counterweight 34 is also installed on the side plate 32 on the rear side of the rear plate 33.

[0048] The filling material recovery and exhaust system provided by this invention features an integrated structure design for the exhaust hood 1 and the material recovery box 3. It also includes a material gun hole through which the feeding gun passes. The downward movement of the feeding gun forces the material recovery box 3 to flip and open, allowing the material collected inside to be poured into the packaging barrel. The pad 2 can then be fitted against the tube wall of the feeding gun. Any remaining material in the material recovery box 3 can flow into the packaging barrel through the pointed end along the tube wall of the feeding gun, thus completely preventing material leakage and contamination.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A filling material recovery and exhaust system, including an exhaust hood, characterized in that, The exhaust hood contains a material recycling box that flips under pressure. The top of the exhaust hood has a material gun hole, the bottom has a packaging drum fitting opening, and the side wall has an air intake. The material gun hole allows the material gun to pass through, and the packaging drum fitting opening is located directly below the material gun hole. The size of the packaging drum fitting opening is larger than the size of the material gun hole, and it is used to fit around the opening of the packaging drum. The material recycling box is suspended and connected to one side of the material gun hole. A horizontally arranged pad is placed on the material recycling box. The front ends of both the material recycling box and the pad are within the horizontal projection range of the material gun hole, and both extend beyond the center line of the material gun hole. The front end of the material recycling box extends beyond the front end of the pad. The pad flips under pressure and can fit against the wall of the material gun. The front end of the pad is cylindrical; corresponding to the position directly below the material gun hole, the pad is provided with a drainage slope that slopes downward and backward toward the material recycling box, and a drainage hole that runs vertically through the end of the drainage slope is provided. The pad below the cylindrical surface is provided with an upper groove arranged along the longitudinal direction of the pad, and the upper groove also communicates with the drainage hole. The two sides of the drainage slope are the main planes of the pad blocks; The material recycling box includes a base plate arranged longitudinally with a V-shaped cross-section, side plates connected to both sides of the base plate, and a rear plate connected to the rear of the base plate. The two side plates are respectively provided with hook-shaped hanging ears. The base plate is inclined with the front higher than the rear, and the front end of the base plate forms a sharp corner structure with an obtuse angle, the end of which extends beyond the front end of the pad block.

2. The system according to claim 1, characterized in that, The exhaust hood includes a surrounding panel, a top panel, and a front panel. The surrounding panel has a U-shaped structure, and the front panel is connected to the surrounding panel to form a square frame structure. The top panel is fixedly connected to the top of the surrounding panel, and the front panel is rotatably connected to the top panel, so that it can be flipped open and closed relative to the surrounding panel. Correspondingly, the air intake is provided on the surrounding panel and is sealed to an external air intake duct.

3. The system according to claim 2, characterized in that, The front panel is made of a transparent material.

4. The system according to claim 2, characterized in that, The front end of the enclosure is a downward sloping surface, which allows the front panel to close with the enclosure under the action of gravity.

5. The system according to claim 2, characterized in that, It also includes a movable block, connected to the enclosure, for fixing the enclosure and controlling the movement of the exhaust hood by means of an external driving force.

6. The system according to claim 1, characterized in that, The pad is made of plastic.

7. The system according to claim 1, characterized in that, On the side plate below the lug, there is a horizontally arranged elongated mounting hole, and the pad is connected to the elongated mounting hole through a mounting shaft.

8. The system according to claim 7, characterized in that, A counterweight is also installed on the side plate behind the rear plate.

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