Degassing spiral device of ultrafine powder packaging machine

Abstract

The utility model relates to the technical field of degassing of packaging machines, and provides a degassing spiral device of an ultrafine powder packaging machine, which comprises an outer pipe, an inner pipe and an inner pipe, the inner pipe is arranged in the outer pipe, an exhaust cavity is formed by the inner pipe and the outer pipe, the exhaust cavity is communicated with the exhaust port, and the inner pipe is provided with an inlet and an outlet; the connecting piece is arranged on the inner pipe; one end of the filter element is communicated with the outlet, and the other end of the filter element is a discharge hole; and the fixing piece is arranged on the outer pipe and is used for fixing the filter element. By means of the technical scheme, the problems that in the related technology, when a metal filter screen is damaged or the filtering effect becomes poor and needs to be replaced, the whole air exhaust spiral needs to be detached, cut and then welded again, the workload is large, and the construction difficulty is large are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of degassing for packaging machines, and in particular to a degassing spiral device for an ultrafine powder packaging machine. Background Art

[0002] In the prior art, how to use packaging machines to package ultrafine powders is a difficult problem. Because ultrafine powders contain a large amount of gas, they must be degassed before entering the packaging bag and sealing. The degassing filters on existing packaging machines are mostly made of metal sintered meshes, and the connection between the metal sintered mesh and the degassing spiral shell is welded. When the metal filter is damaged or the filtering effect deteriorates and needs to be replaced, the exhaust spiral needs to be disassembled as a whole, cut and re-welded, which requires a large workload and great construction difficulty.

[0003] In addition, the minimum filtration accuracy of the metal filter is 1 micron. For ultrafine powders below 1 micron, the degassing design of the existing packaging machine cannot achieve the purpose of effective degassing and the requirement of long-term operation. Utility Model Content

[0004] The utility model proposes a degassing spiral device for an ultrafine powder packaging machine, which solves the problem in the related art that when the metal filter screen is damaged or the filtering effect deteriorates and needs to be replaced, the exhaust spiral needs to be disassembled as a whole, cut and then re-welded, which results in a large workload and great construction difficulty.

[0005] The technical solution of the utility model is as follows:

[0006] A degassing spiral device for an ultrafine powder packaging machine, comprising:

[0007] An outer tube having a side wall with an exhaust port;

[0008] An inner tube, disposed inside the outer tube, and forming the exhaust cavity with the outer tube, the exhaust cavity is communicated with the exhaust port, and the inner tube has an inlet and an outlet;

[0009] A connecting piece, arranged on the inner tube;

[0010] A filter element is arranged on the connecting piece, one end of which is connected to the outlet and the other end of which is a discharge port;

[0011] A fixing member is arranged on the outer tube and is used for fixing the filter element.

[0012] As a further technical solution, the connecting piece includes:

[0013] A connecting sleeve, which is arranged at the end of the inner tube, and the side wall has a plurality of supporting protrusions arranged along the circumference, and the supporting protrusions abut against the inner wall of the outer tube;

[0014] The first connecting seat is arranged on the connecting sleeve and has a first mounting groove, and the top end of the filter element is inserted into the first mounting groove.

[0015] As a further technical solution, the connecting sleeve is threadedly connected to the first connecting seat.

[0016] As a further technical solution, the fixing member includes:

[0017] A second connecting seat has a second mounting groove, and the bottom end of the filter element is inserted into the second mounting groove;

[0018] The fixing seat is arranged on the outer tube and abuts against the second connecting seat.

[0019] As a further technical solution, the second connecting seat has a sealing groove and further comprises:

[0020] A sealing ring is arranged in the sealing groove, and the fixing seat and the second connecting seat are sealingly connected through the sealing ring.

[0021] As a further technical solution, the fixing seat is threadedly connected to the outer tube.

[0022] As a further technical solution, the fixing seat has a card slot and further includes:

[0023] There are a plurality of stop seats, which are arranged at intervals at the end of the outer tube and each has a threaded hole;

[0024] There are several fixed top screws, and the corresponding threads are arranged in the threaded holes. After the fixed top screws are rotated, they are clamped in the clamping grooves.

[0025] As a further technical solution, the filter element is a PA filter element.

[0026] As a further technical solution, it also includes:

[0027] The screw conveyor is rotatably arranged in the inner tube.

[0028] As a further technical solution, it also includes:

[0029] A mounting seat, arranged on the outer tube;

[0030] A linear drive member, disposed on the mounting seat;

[0031] A swing arm having a first end, a second end and a third end, wherein the second end is located between the first end and the third end, the first end has a slide slot, the driving end of the linear drive member is rotatably disposed in the slide slot, and the second end is hingedly disposed on the mounting seat;

[0032] A push rod, one end of which is hingedly arranged on the third end;

[0033] The material door is hingedly arranged on the other end of the push rod. After the linear drive member drives the swing arm to swing, the material door is driven to swing through the push rod. After the material door swings, it is used to open or close the discharge port.

[0034] The working principle and beneficial effects of the utility model are:

[0035] In the utility model, ultrafine powder enters the inner tube through the inlet, flows along the inner tube to the outlet, and enters the filter element from the outlet, and the air in the ultrafine powder enters the exhaust cavity through the filter element, and is discharged from the exhaust port through the exhaust cavity, and the ultrafine powder after exhaust is discharged through the discharge port for packaging, wherein the filter element is arranged on the inner tube through a connecting piece, and the bottom of the filter element is fixed by a fixing piece, that is, the filter element is installed in a detachable form, which is convenient for assembly, and the consumable filter element is more convenient to replace, thereby increasing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0037] Figure 1 It is a schematic diagram of the structure of the utility model;

[0038] Figure 2 for Figure 1 A schematic diagram of the structure of part A;

[0039] Figure 3 for Figure 1 Schematic diagram of the structure of part B;

[0040] Figure 4 This is a schematic diagram of the structure of the connecting sleeve of the utility model;

[0041] Figure 5 This is a schematic diagram of the structure of the stopper seat of the utility model;

[0042] Figure 6 It is a structural schematic diagram of the material door control structure and the spiral conveyor of the utility model;

[0043] In the figure: 1. outer tube, 2. exhaust port, 3. inner tube, 4. exhaust cavity, 5. inlet, 6. outlet, 7. connecting piece, 8. filter element, 9. discharge port, 10. fixing piece, 11. connecting sleeve, 12. supporting protrusion, 13. first connecting seat, 14. first mounting groove, 15. second connecting seat, 16. second mounting groove, 17. fixing seat, 18. sealing ring, 19. slot, 20. stop seat, 21. threaded hole, 22. fixed top screw, 23. spiral conveyor, 24. mounting seat, 25. linear drive member, 26. swing arm, 27. first end, 28. second end, 29. third end, 30. slide groove, 31. push rod, 32. material door, 33. sealing groove. DETAILED DESCRIPTION

[0044] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0045] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0046] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0047] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0048] Example

[0049] Reference Figure 1 to Figure 6In order to solve the problem that when the metal filter screen is damaged or the filtering effect deteriorates and needs to be replaced, the exhaust spiral needs to be disassembled as a whole, cut and re-welded, which is labor-intensive and difficult to construct.

[0050] A degassing spiral device for an ultrafine powder packaging machine, comprising:

[0051] An outer tube 1, with an exhaust port 2 on the side wall;

[0052] The inner tube 3 is arranged in the outer tube 1 and forms an exhaust cavity 4 with the outer tube 1. The exhaust cavity 4 is communicated with the exhaust port 2. The inner tube 3 has an inlet 5 and an outlet 6.

[0053] A connecting piece 7 is arranged on the inner tube 3;

[0054] The filter element 8 is arranged on the connecting piece 7, one end of which is connected with the outlet 6 and the other end of which is the discharge port 9;

[0055] The fixing member 10 is arranged on the outer tube 1 and is used to fix the filter element 8 .

[0056] In this embodiment, the ultrafine powder enters the inner tube 3 through the inlet 5, flows along the inner tube 3 to the outlet 6, and enters the filter element 8 from the outlet 6. The air in the ultrafine powder enters the exhaust cavity 4 through the filter element 8, and is discharged from the exhaust port 2 through the exhaust cavity 4. The ultrafine powder after exhaust is discharged through the discharge port 9 for packaging, wherein the filter element 8 is arranged on the inner tube 3 through the connecting piece 7, and the bottom of the filter element 8 is fixed by the fixing piece 10, that is, the filter element 8 is installed in a detachable form, which is convenient for assembly, and the consumable filter element 8 is more convenient to replace, thereby increasing practicality.

[0057] In order to make the installation of the filter element 8 more stable and convenient, it is further proposed that the connecting member 7 includes:

[0058] A connecting sleeve 11 is arranged at the end of the inner tube 3, and the side wall has a plurality of supporting protrusions 12 arranged along the circumference, and the supporting protrusions 12 abut against the inner wall of the outer tube 1;

[0059] The first connecting seat 13 is arranged on the connecting sleeve 11 and has a first mounting groove 14 . The top end of the filter element 8 is inserted into the first mounting groove 14 .

[0060] As a further technical solution, the connecting sleeve 11 is threadedly connected to the first connecting seat 13 .

[0061] The outer wall of the connecting sleeve 11 is provided with a plurality of supporting protrusions 12 at intervals along the circumference, which may be 4 in number. The setting of the supporting protrusions 12 can create a gap between the connecting sleeve 11 and the outer tube 1, which serves as a channel for the exhaust system. The main body of the connecting sleeve 11 can be arranged on the inner tube 3 by bonding or welding, and the lower end has a thread that is threadedly matched with the first connecting seat 13. The upper part of the first connecting seat 13 is provided with an external thread connecting part, which is threadedly connected with the connecting sleeve 11, and the lower part has a first mounting groove 14 that matches the filter screen. The first mounting groove 14 is annular, and the top end of the filter screen is inserted into the first mounting groove 14 for installation. In this way, the filter screen structure that was originally welded as one is set to a detachable structure, which makes the structure more convenient to disassemble.

[0062] As a further technical solution, the fixing member 10 includes:

[0063] The second connecting seat 15 has a second mounting groove 16, and the bottom end of the filter element 8 is inserted into the second mounting groove 16;

[0064] The fixing seat 17 is disposed on the outer tube 1 and is abutted against the second connecting seat 15 .

[0065] As a further technical solution, the second connecting seat 15 has a sealing groove and further includes:

[0066] The sealing ring 18 is disposed in the sealing groove, and the fixing seat 17 and the second connecting seat 15 are sealed and connected via the sealing ring 18 .

[0067] As a further technical solution, the fixing seat 17 is threadedly connected to the outer tube 1 .

[0068] In this embodiment, the top of the second connecting seat 15 is a second mounting groove 16, and the lower end of the filter screen is clamped in the second mounting groove 16. The bottom of the second connecting seat 15 is a plane and has a sealing groove. The sealing ring 18 is an annular groove. The sealing ring 18 is arranged in the sealing groove to achieve a sealed connection between the fixing seat 17 and the second connecting seat 15. The fixing seat 17 is connected to the outer tube 1 by a threaded connection, which further facilitates the quick removal of the filter screen. The setting of the second connecting seat 15 can make the filter screen more stably installed in the outer tube 1, further improving the structural stability.

[0069] As a further technical solution, the fixing seat 17 has a card slot 19 and also includes:

[0070] There are several stop seats 20, which are arranged at intervals at the end of the outer tube 1 and each has a threaded hole 21;

[0071] There are a plurality of fixed top screws 22 , and corresponding threads are arranged in the threaded holes 21 . After the fixed top screws 22 are rotated, they are clamped in the clamping grooves 19 .

[0072] In this embodiment, in order to further increase the structural strength and prevent the fixed seat 17 from rotating, a stop seat 20 is added to facilitate the installation of a fixed top screw 22. The fixed seat 17 is limited by the fixed top screw 22 to prevent the fixed seat 17 from rotating, thereby ensuring the stability of the structure.

[0073] As a further technical solution, the filter element 8 is a PA filter element 8.

[0074] In this embodiment, the PA filter element 8 is a PA-coated ultra-fine filter element 8 with a filtration accuracy of 0.1 microns, so that it is installed between the first connecting seat 13 and the second connecting seat 15 of the filter element 8 .

[0075] As a further technical solution, it also includes:

[0076] The screw conveying member 23 is rotatably disposed in the inner tube 3 .

[0077] In this embodiment, in order to realize the ultrafine powder transportation, a screw conveyor 23 is provided.

[0078] As a further technical solution, it also includes:

[0079] A mounting seat 24, arranged on the outer tube 1;

[0080] A linear drive member 25 is disposed on the mounting seat 24;

[0081] The swing arm 26 has a first end 27, a second end 28 and a third end 29, the second end 28 is located between the first end 27 and the third end 29, the first end 27 has a slide slot 30, the driving end of the linear drive member 25 is rotatably disposed in the slide slot 30, and the second end 28 is hingedly disposed on the mounting seat 24;

[0082] A push rod 31, one end of which is hingedly arranged on the third end 29;

[0083] The material door 32 is hingedly arranged on the other end of the push rod 31. After the linear drive member 25 drives the swing arm 26 to swing, the material door 32 is driven to swing through the push rod 31. After the material door 32 swings, it is used to open or close the discharge port 9.

[0084] In this embodiment, in order to control the opening and closing of the material gate 32, an opening and closing structure is further set. The linear drive member 25 drives the swing arm 26 to rotate, so as to avoid using the point at the second end 28 as a prying point, so that the push rod 31 on the third end 29 moves up and down. The push rod 31 moves up and down to drive the material gate 32 to swing. After the material gate 32 swings, the discharge port 9 is opened or closed. The opening and closing of the discharge port 9 is controlled in this way, which is convenient for the packaging of ultrafine powder.

[0085] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A degassing spiral device for an ultrafine powder packaging machine, characterized in that: include: An outer tube (1) having a side wall with an exhaust port (2); an inner tube (3) disposed inside the outer tube (1) and forming an exhaust cavity (4) with the outer tube (1); the exhaust cavity (4) is in communication with the exhaust port (2); the inner tube (3) has an inlet (5) and an outlet (6); A connecting piece (7) arranged on the inner tube (3); A filter element (8) is arranged on the connecting piece (7), one end of which is connected to the outlet (6) and the other end of which is a discharge port (9); A fixing member (10) is arranged on the outer tube (1) and is used to fix the filter element (8).

2. The degassing spiral device of the ultrafine powder packaging machine according to claim 1, characterized in that: The connecting member (7) comprises: A connecting sleeve (11), which is arranged at the end of the inner tube (3), and the side wall has a plurality of supporting protrusions (12) arranged along the circumference, and the supporting protrusions (12) abut against the inner wall of the outer tube (1); The first connecting seat (13) is arranged on the connecting sleeve (11) and has a first mounting groove (14), and the top end of the filter element (8) is inserted into the first mounting groove (14).

3. The degassing spiral device of the ultrafine powder packaging machine according to claim 2, characterized in that: The connecting sleeve (11) is threadedly connected to the first connecting seat (13).

4. The degassing spiral device of the ultrafine powder packaging machine according to claim 1, characterized in that: The fixing member (10) comprises: The second connecting seat (15) has a second mounting groove (16), and the bottom end of the filter element (8) is inserted into the second mounting groove (16); The fixing seat (17) is arranged on the outer tube (1) and is abutted against the second connecting seat (15).

5. The degassing spiral device of the ultrafine powder packaging machine according to claim 4, characterized in that: The second connecting seat (15) has a sealing groove (33) and further comprises: A sealing ring (18) is arranged in the sealing groove (33), and the fixing seat (17) and the second connecting seat (15) are sealingly connected via the sealing ring (18).

6. The degassing spiral device for ultrafine powder packaging machine according to claim 4, characterized in that: The fixing seat (17) is threadedly connected to the outer tube (1).

7. The degassing spiral device for ultrafine powder packaging machine according to claim 4, characterized in that: The fixing seat (17) has a card slot (19) and further comprises: A plurality of stop seats (20) are arranged at intervals at the end of the outer tube (1) and each has a threaded hole (21); There are a plurality of fixed top screws (22), and corresponding threads are arranged in the threaded holes (21). After the fixed top screws (22) are rotated, they are engaged in the engaging grooves (19).

8. The degassing spiral device for ultrafine powder packaging machine according to claim 1, characterized in that: The filter element (8) is a PA filter element.

9. The degassing spiral device for ultrafine powder packaging machine according to claim 1, characterized in that: Also includes: The screw conveying member (23) is rotatably disposed in the inner tube (3).

10. The degassing spiral device for ultrafine powder packaging machine according to claim 1, characterized in that: Also includes: A mounting seat (24) disposed on the outer tube (1); A linear drive member (25) disposed on the mounting seat (24); a swing arm (26) having a first end (27), a second end (28) and a third end (29), wherein the second end (28) is located between the first end (27) and the third end (29), the first end (27) having a slide groove (30), the driving end of the linear driving member (25) being rotatably disposed in the slide groove (30), and the second end (28) being hingedly disposed on the mounting seat (24); A push rod (31), one end of which is hingedly arranged on the third end (29); The material door (32) is hingedly arranged on the other end of the push rod (31). After the linear drive member (25) drives the swing arm (26) to swing, the material door (32) is driven to swing through the push rod (31). After the material door (32) swings, it is used to open or close the discharge port (9).

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