Filling material recycling and exhausting system

Abstract

The invention provides a filling material recycling and exhausting system. The filling material recycling and exhausting system comprises an exhaust hood and a material recycling box. A material gun hole is formed in the top of the exhaust hood, a packaging barrel attaching opening is formed in the bottom of the exhaust hood, and an air suction opening is formed in the side wall of the exhaust hood. The material recycling box is connected to one side of the material gun hole in a suspended mode, a horizontally-arranged cushion block is arranged on the material recycling box, and the front end of the material recycling box exceeds the front end of the cushion block. According to the filling material recycling and exhausting system, the exhaust hood and the material recycling box are designed to be of an integrated structure, the material gun hole allowing the material gun to pass through is formed, the material gun moves downwards to force the material recycling box to be turned over downwards to be opened, materials collected in the box are poured into a packaging barrel, and therefore the filling material recycling effect is improved. And then the cushion block can be attached to the pipe wall of the material gun, the remaining materials in the material recycling box can flow into the packaging barrel along the pipe wall of the material gun through the sharp corner at the front end, and therefore leakage and pollution of the materials are completely avoided.

Description

Technical Field

[0001] The invention relates to the field of filling machines, in particular to a filling material recovery and exhaust system. Background Art

[0002] The filling, material recovery, and exhaust of a common filling machine are three independent systems, which are determined by the working requirements of the filling machine. For a large filling machine, its material gun needs to extend into the packaging barrel to perform filling operations.

[0003] As the filling progresses, the gas space in the packaging barrel becomes smaller and smaller, so the gas in the packaging barrel is squeezed out, and the gas in the packaging barrel is discharged through the barrel mouth of the packaging barrel. Therefore, the suction and exhaust devices are usually set at the barrel mouth of the packaging barrel. And the suction and exhaust devices need to be connected with the material gun and the barrel mouth at the same time, which brings difficulties to the structural design of the suction and exhaust devices.

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

[0005] The above three structures are independent of each other in conventional design. Therefore, in the process of coordinated operation, after each process is completed, it is necessary to accurately control the corresponding coordinated operation to ensure stable connection of each step, which puts higher requirements on the process structure.

[0006] Based on the above technical status, if a device is designed that inherits both material recovery and exhaust and can be automatically compatible with the material gun, this will 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 to solve the problem that the filling, exhaust and material recovery mechanisms of the traditional filling machine are independent of each other and have high requirements for process coordination.

[0008] In order to solve the above technical problems, the present invention provides a filling material recovery and exhaust system, including an exhaust hood, wherein a forced-overturned material recovery box is provided in the exhaust hood; a material gun hole is provided on the top of the exhaust hood, a packaging barrel fitting opening is provided on the bottom of the exhaust hood, and an air suction port is provided on the side wall of the exhaust hood; wherein the material gun hole is used 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 barrel mouth of the packaging barrel; the material recovery box is connected to one side of the material gun hole in a hanging manner, and a horizontally arranged pad is provided on the material recovery box, the front end of the material recovery box and the front end of the pad are both located in the material gun hole, and the front end exceeds the center line of the material gun hole, and the front end of the material recovery box exceeds the front end of the pad.

[0009] The exhaust hood includes an enclosure, a top plate and a front plate. The enclosure is a U-shaped structure. The front plate is connected to the enclosure to form a frame structure. The top plate is fixedly connected to the top of the enclosure. The front plate is rotatably connected to the top plate so that it can be flipped open and closed relative to the enclosure. Correspondingly, the suction port is arranged on the enclosure and is sealed and connected to the external suction duct.

[0010] The front plate is made of transparent material.

[0011] The front end of the enclosure is a slope that is inclined downward, so that the front plate can be closed with the enclosure under the action of gravity.

[0012] It also includes a moving block connected to the enclosure plate, which is used to fix the enclosure plate and control the movement of the exhaust hood with the help of an external driving force.

[0013] The cushion block is made of plastic material.

[0014] The front end of the cushion block is a cylindrical surface; corresponding to the position directly below the material gun hole, the cushion block is provided with a drainage slope inclined toward the lower rear of the material recovery box, and a drainage hole penetrating from top to bottom is provided at the end of the drainage slope.

[0015] A longitudinal upper groove is provided on the cushion block below the cylindrical surface, and the upper groove is also connected with the drainage hole.

[0016] The two sides of the drainage slope are the main planes of the cushion block.

[0017] The material recovery box includes a bottom plate arranged longitudinally and having a V-shaped cross-section, side plates connected to both sides of the bottom plate and a rear plate connected to the rear of the bottom plate, and the two side plates are respectively provided with hook-shaped hanging ears; the bottom plate is inclined with the front higher and the back lower, and the front end of the bottom plate forms a blunt-angled sharp-angle structure, and the end of the sharp-angle structure exceeds the front end of the pad.

[0018] A horizontally arranged, elongated mounting hole is provided on the side plate below the hanging ear, and the cushion block is connected in the elongated mounting hole via a mounting shaft.

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

[0020] The filling material recovery and exhaust system, the exhaust hood and the material recovery box provided by the present invention are designed with an integrated structure, and are provided with a material gun hole through which a feeding gun passes. The downward movement of the material gun forces the material recovery box to flip downward and open, and the material collected in the box is poured into the packaging barrel. Then, the pad block can fit with the tube wall of the material gun, and the remaining material in the material recovery box can flow into the packaging barrel through the sharp corner of the front end along the tube wall of the material gun, thereby completely avoiding leakage and contamination of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[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 This is a schematic diagram of the overall structure of the filling material recovery and exhaust system (the side panels are omitted).

[0024] Figure 4 This is a schematic diagram of the overall structure of the filling material recovery and exhaust system (the side panels are omitted).

[0025] Figure 5 It is a structural schematic diagram of the material recovery box and its pad.

[0026] Figure 6 It is a structural schematic diagram of the material recovery box and its pad.

[0027] Figure 7 It is a structural schematic diagram of the material recovery box and its pad.

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

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

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

[0031] In the figure:

[0032] 1. Exhaust hood; 1a. Material gun hole; 1b. Packaging barrel fitting opening; 1c. Air inlet; 11. Top plate; 12. Enclosure; 13. Front plate;

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

[0034] 3. Material recovery box; 31. Bottom plate; 31a. Sharp angle structure; 32. Side plate; 32a. Hanging ear; 32b. Long mounting hole; 33. Back plate; 34. Counterweight. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by 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, in which a forced-overturned material recovery box 3 is provided; a material gun hole 1a is provided on the top of the exhaust hood 1, a packaging barrel fitting opening 1b is provided on the bottom of the exhaust hood 1, and an air suction port 1c is provided on the side wall of the exhaust hood 1; 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 barrel mouth of the packaging barrel; the material recovery box 3 is connected to one side of the material gun hole 1a in a hanging manner, and a horizontally arranged pad block 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 block 2 are both located in the material gun hole, and the front end exceeds the center line of the material gun hole 1a, and the front end of the material recovery box 3 exceeds the front end of the pad block 2.

[0037] The exhaust hood 1 includes a surrounding plate 12, a top plate 11 and a front plate 13. The surrounding plate 12 is a U-shaped structure. The front plate 13 is connected to the surrounding plate 12 to form a square frame structure. The top plate 11 is fixedly connected to the top of the surrounding plate 12, and the front plate 13 is rotatably connected to the top plate 11 so that it can be flipped open and closed relative to the surrounding plate 12; correspondingly, the suction port 1c is arranged on the surrounding plate 12 and is sealed and connected to the external suction duct.

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

[0039] The front end of the enclosure 12 is a slope that is inclined downward, so that the front plate 13 can be closed with the enclosure 12 under the action of gravity.

[0040] It also includes a moving block connected to the enclosure 12, which is used to fix the enclosure 12 and control the movement of the exhaust hood 1 with the help of an external driving force.

[0041] The cushion block 2 is made of plastic material.

[0042] The front end of the cushion block 2 is a cylindrical surface 21; corresponding to the position directly below the material gun hole 1a, the cushion block 2 is provided with a drainage slope 22 inclined toward the lower rear of the material recovery box 3, and a drainage hole 23 that passes through from top to bottom is provided at the end of the drainage slope 22.

[0043] A longitudinal upper groove 24 is provided on the cushion block 2 below the cylindrical surface 21 , and the upper groove 24 is also connected to the drainage hole 23 .

[0044] Both sides of the drainage slope 22 are the main planes of the cushion block 2 .

[0045] The material recovery box 3 includes a bottom plate 31 arranged longitudinally and having a V-shaped cross-section, side plates 32 connected to both sides of the bottom plate 31, and a rear plate 33 connected to the rear of the bottom plate 31, and the two side plates 32 are respectively provided with hook-shaped hanging ears 32a; the bottom plate 31 is inclined with the front higher and the rear lower, and the front end of the bottom plate 31 forms a blunt-angled sharp-angle structure 31a, and the end of the sharp-angle structure 31a exceeds the front end of the pad 2.

[0046] A horizontally arranged, elongated mounting hole 32 b is provided on the side plate 32 below the hanging ear 32 a , and the cushion block 2 is connected to the elongated mounting hole 32 b via a mounting shaft.

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

[0048] The filling material recovery and exhaust system provided by the present invention has an integrated structural design for the exhaust hood 1 and the material recovery box 3, and is provided with a material gun hole through which the feeding gun passes. The downward movement of the material gun forces the material recovery box 3 to flip downward and open, and the material collected in the box is poured into the packaging barrel. Then, the cushion block 2 can fit with the tube wall of the material gun, and the remaining material in the material recovery box 3 can flow into the packaging barrel through the sharp corner of the front end along the tube wall of the material gun, thereby completely avoiding leakage and contamination of the material.

[0049] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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 only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. Filling material recovery and exhaust system, including exhaust hood, characterized in that: A forced-overturned material recovery box is provided in the exhaust hood; a material gun hole is provided on the top of the exhaust hood, a packaging barrel fitting opening is provided on the bottom of the exhaust hood, and an air suction port is provided on the side wall of the exhaust hood; wherein the material gun hole is used 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 barrel opening of the packaging barrel; the material recovery box is connected to one side of the material gun hole in a hanging manner, and a horizontally arranged pad is provided on the material recovery box, the front end of the material recovery box and the front end of the pad are both located in the material gun hole, and the front end exceeds the center line of the material gun hole, and the front end of the material recovery box exceeds the front end of the pad.

2. The system according to claim 1, characterized in that The exhaust hood includes an enclosure, a top plate and a front plate. The enclosure is a U-shaped structure. The front plate is connected to the enclosure to form a frame structure. The top plate is fixedly connected to the top of the enclosure. The front plate is rotatably connected to the top plate so that it can be flipped open and closed relative to the enclosure. Correspondingly, the suction port is arranged on the enclosure and is sealed and connected to the external suction duct.

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

4. The system according to claim 2, characterized in that The front end of the enclosure is a slope that is inclined downward, so that the front plate can be closed with the enclosure under the action of gravity.

5. The system according to claim 2, characterized in that It also includes a moving block connected to the enclosure plate, which is used to fix the enclosure plate and control the movement of the exhaust hood with the help of an external driving force.

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

7. The system according to claim 6, characterized in that The front end of the cushion block is a cylindrical surface; corresponding to the position directly below the material gun hole, the cushion block is provided with a drainage slope inclined toward the lower rear of the material recovery box, and a drainage hole penetrating from top to bottom is provided at the end of the drainage slope.

8. The system according to claim 7, characterized in that A longitudinal upper groove is provided on the cushion block below the cylindrical surface, and the upper groove is also connected with the drainage hole.

9. The system according to claim 7, characterized in that The two sides of the drainage slope are the main planes of the cushion block.

10. The system according to claim 1, characterized in that The material recovery box includes a bottom plate arranged longitudinally and having a V-shaped cross-section, side plates connected to both sides of the bottom plate and a rear plate connected to the rear of the bottom plate, and the two side plates are respectively provided with hook-shaped hanging ears; the bottom plate is inclined with the front higher and the back lower, and the front end of the bottom plate forms a blunt-angled sharp-angle structure, and the end of the sharp-angle structure exceeds the front end of the pad.

11. The system according to claim 10, characterized in that A horizontally arranged, elongated mounting hole is provided on the side plate below the hanging ear, and the cushion block is connected in the elongated mounting hole via a mounting shaft.

12. The system according to claim 11, characterized in that A counterweight is also installed on the side plate at the rear side of the rear plate.

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