Single-moving-ring axial moving type packing sealing device of internal mixer

Abstract

The utility model discloses a single-moving-ring axial moving type packing sealing device of an internal mixer, which comprises a body part, a sealing part and a sealing part, the sealing component comprises a supporting ring, a limiting ring, a sealing ring, a rubber ring, an extension block, a positioning rod, a positioning ring, a spring and a rubber block; the circumference of one side of the supporting ring is connected with the springs at equal intervals, the positioning rod penetrates through the limiting ring, the outer surface of the positioning rod is connected with the positioning ring, the positioning ring is attached to one side of the limiting ring, and the middle of one side of the positioning ring is connected with the sealing ring in a bonding mode. The problems that when an existing single-moving-ring axial sealing device of an internal mixer is actually used, the sealing performance is generally insufficient, for example, a gap is generated between the sealing device and a bearing due to looseness between the bearing and a device body, the sealing performance is reduced, the production efficiency is affected, and the service life is prolonged are solved. And the problem of material leakage caused by untight sealing can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of internal mixers, in particular to a single-moving ring axially movable tight sealing device of an internal mixer. Background Art

[0002] Closed plastic mixer is called internal mixer for short. The main component of internal mixer is internal mixing chamber, also called plastic mixing chamber, with feeding device at the top and unloading device at the bottom, and a bolt at the top and bottom. When the top bolt and the bottom bolt are closed, a closed plastic mixing chamber is formed. There is a pair of rotors rotating in opposite directions in the plastic mixing chamber. The cross section of the rotor is pear-shaped and it is a Z-shaped spiral along the longitudinal direction. The rotor speed is slightly different. There is a constant speed ratio between the rotors and between the rotors and the inner wall of the plastic mixing chamber.

[0003] The existing single-ring axial sealing device of the internal mixer usually faces the problem of insufficient sealing performance during actual use. For example, the looseness between the bearing and the device body causes a gap between the sealing device and the bearing, resulting in reduced sealing performance. These problems not only affect the production efficiency, but may also cause material leakage due to poor sealing. Utility Model Content

[0004] The purpose of the utility model is to provide a single-moving ring axially movable tightening sealing device for an internal mixer, so as to solve the problem raised in the above-mentioned background technology that the single-moving ring axial sealing device of the existing internal mixer usually faces the problem of insufficient sealing performance during actual use, such as looseness between the bearing and the device body, which causes a gap between the sealing device and the bearing, resulting in reduced sealing performance. These problems not only affect the production efficiency, but may also cause material leakage due to poor sealing.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a single-moving ring axially movable tight sealing device for an internal mixer, comprising:

[0007] a body component, the body component comprising a device housing;

[0008] A sealing component, wherein the sealing component comprises a support ring, a limit ring, a sealing ring, a rubber ring, an extension block, a positioning rod, a positioning ring, a spring and a rubber block;

[0009] One side of the support ring is equidistantly connected to the spring, the positioning rod passes through the limiting ring, the outer surface of the positioning rod is connected to the positioning ring, the positioning ring is attached to one side of the limiting ring, and the middle part of one side of the positioning ring is connected to the sealing ring by bonding.

[0010] Furthermore, one side of the sealing ring is connected to a rubber ring, and the outer surface of the rubber ring is connected to extension blocks at equal intervals around the circumference, and the extension blocks surround the outer surface of the sealing ring.

[0011] Furthermore, a group of rubber blocks are symmetrically connected to the other side of the positioning ring, and the rubber blocks and the supporting ring are in a corresponding form to each other.

[0012] Furthermore, the body component also includes a bearing;

[0013] The bearing is connected to both sides of the outer wall of the device housing, and the sealing ring and the rubber ring are surrounded on the outer surface of the bearing.

[0014] Furthermore, it also includes a fixing component, which includes a positioning block, a fixing rod, a fixing hole and a fixing ring;

[0015] The outer surface of the device housing is equidistantly connected to the positioning blocks, a fixing hole is provided in the middle of the positioning blocks, and the other side of the support ring is equidistantly connected to the fixing rods, which are connected to the inside of the fixing hole by insertion.

[0016] Furthermore, the fixing ring is connected to the outer surface of the fixing rod, and the supporting ring surrounds the outer surface of the device shell, and the fixing ring is attached to one side of the positioning block.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] The utility model provides a spring on one side of the support ring, and the spring is connected between the support ring and the limit ring. The spring can generate elastic force and is adjusted according to the position between the device and the bearing, so that the sealing ring can perform appropriate axial movement according to the operating conditions, thereby achieving the best sealing effect. Finally, through the compression effect of the spring, the sealing ring and the rubber ring are completely fitted together, thereby realizing the axial movement and tightening of the sealing ring and improving the sealing performance.

[0019] Based on the above-mentioned intentional effects, by providing a fixing rod and a fixing hole, after long-term use, if the sealing ring needs to be removed for replacement or maintenance, the fixing ring can be separated from the fixing rod, and then the support ring can be pulled outward to separate the fixing rod from the fixing hole, and the support ring can be removed as a whole, thereby replacing or maintaining the sealing gasket or spring for continued use in the future, so as to increase the later production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1It is a three-dimensional schematic diagram of the device housing of the utility model;

[0022] Figure 2 This is a schematic diagram of the support ring of the utility model;

[0023] Figure 3 For the utility model Figure 1 Enlarged schematic diagram of part A in the middle.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 11. Device housing; 12. Bearing;

[0026] 21. Support ring; 22. Limiting ring; 23. Sealing ring; 24. Rubber ring; 25. Extension block; 26. Positioning rod; 27. Positioning ring; 28. Spring; 29. ​​Rubber block;

[0027] 31. Positioning block; 32. Fixing rod; 33. Fixing hole; 34. Fixing ring. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0030] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] See also Figure 1 , Figure 2 As shown, this embodiment is a single-moving ring axially movable tight sealing device for an internal mixer, comprising:

[0032] A main body component, the main body component includes a device housing 11;

[0033] A sealing component, the sealing component includes a support ring 21, a limit ring 22, a sealing ring 23, a rubber ring 24, an extension block 25, a positioning rod 26, a positioning ring 27, a spring 28 and a rubber block 29;

[0034] One side of the support ring 21 is equidistantly connected to the spring 28, the positioning rod 26 penetrates the limiting ring 22, the outer surface of the positioning rod 26 is connected to the positioning ring 27, the positioning ring 27 is attached to one side of the limiting ring 22, and the middle part of one side of the positioning ring 27 is connected to the sealing ring 23 by bonding;

[0035] The spring 28 can generate elastic force and be adjusted according to the position between the device and the bearing 12, so that the sealing ring 23 can perform appropriate axial movement according to the operating conditions, thereby achieving the best sealing effect. Finally, through the compression effect of the spring 28, the sealing ring 23 and the rubber ring 24 are completely fitted together, realizing the axial movement and tightening of the sealing ring 23.

[0036] One side of the sealing ring 23 is connected to the rubber ring 24, and the outer surface of the rubber ring 24 is connected to the extension block 25 at equal intervals around the circumference, and the extension block 25 surrounds the outer surface of the sealing ring 23;

[0037] When the spring 28 is compressed, the extension block 25 is simultaneously attached to one side of the support ring 21 to achieve a supporting effect.

[0038] A group of rubber blocks 29 are symmetrically connected to the other side of the positioning ring 27, and the rubber blocks 29 and the supporting ring 21 are in a corresponding form to each other;

[0039] When the rubber ring 24 and the sealing ring 23 are fitted together, the positioning ring 27 will surround the outer surface of the sealing ring 23 to achieve a positioning effect, so that there will be no positional deviation between the rubber ring 24 and the sealing ring 23 .

[0040] The body component also includes a bearing 12;

[0041] The bearing 12 is connected to both sides of the outer wall of the device housing 11, and the sealing ring 23 and the rubber ring 24 are surrounded on the outer surface of the bearing 12;

[0042] The sealing ring 23 and the rubber ring 24 are used to provide sealing.

[0043] Working principle: the spring 28 is connected between the support ring 21 and the limit ring 22. The spring 28 can generate elastic force and is adjusted according to the position between the device and the bearing 12, so that the sealing ring 23 can perform appropriate axial movement according to the operating conditions, thereby achieving the best sealing effect. Finally, through the compression effect of the spring 28, the sealing ring 23 and the rubber ring 24 are completely fitted together, and the positioning ring 27 will surround the outer surface of the sealing ring 23, which can achieve the positioning effect, so that there will be no position offset between the rubber ring 24 and the sealing ring 23, thereby realizing the axial movement and tightening of the sealing ring 23 and improving the sealing performance.

[0044] See also Figure 1 , Figure 3As shown, this embodiment is based on the above embodiment 1 and further includes a fixing component, and the fixing component includes a positioning block 31, a fixing rod 32, a fixing hole 33 and a fixing ring 34;

[0045] The outer surface of the device housing 11 is equidistantly connected to the positioning block 31, and a fixing hole 33 is provided in the middle of the positioning block 31. The other side of the support ring 21 is equidistantly connected to the fixing rod 32, and the fixing rod 32 is connected to the inside of the fixing hole 33 by insertion.

[0046] The fixing ring 34 is connected to the outer surface of the fixing rod 32, and the supporting ring 21 surrounds the outer surface of the device housing 11, and the fixing ring 34 is attached to one side of the positioning block 31;

[0047] In this step, the fixing ring 34 can be separated from the fixing rod 32, and the fixing rod 32 can be separated from the fixing hole 33, so that the support ring 21 can be disassembled, which facilitates the replacement or maintenance of the sealing ring 23 and the spring 28.

[0048] Working principle: as the usage time increases, the sealing ring 23 needs to be removed for replacement or maintenance. The fixing ring 34 can be separated from the fixing rod 32, and then the support ring 21 is pulled outward to separate the fixing rod 32 from the fixing hole 33;

[0049] The support ring 21 can be disassembled as a whole, so as to replace or maintain the sealing gasket or spring 28 for subsequent use, so as to increase the subsequent production efficiency.

[0050] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 the present invention can be understood according to specific circumstances.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A single-ring axially movable tight sealing device for an internal mixer, characterized in that: include: A body component, the body component comprising a device housing (11); A sealing component, the sealing component comprising a support ring (21), a limiting ring (22), a sealing ring (23), a rubber ring (24), an extension block (25), a positioning rod (26), a positioning ring (27), a spring (28) and a rubber block (29); One side of the support ring (21) is equidistantly connected to a spring (28); a positioning rod (26) penetrates the limiting ring (22); an outer surface of the positioning rod (26) is connected to a positioning ring (27); the positioning ring (27) is attached to one side of the limiting ring (22); and a middle portion of one side of the positioning ring (27) is connected to a sealing ring (23) by bonding.

2. The single-moving ring axially movable tight sealing device of an internal mixer according to claim 1, characterized in that: One side of the sealing ring (23) is connected to a rubber ring (24), and the outer surface of the rubber ring (24) is connected to extension blocks (25) at equal intervals around the circumference, and the extension blocks (25) surround the outer surface of the sealing ring (23).

3. The single-moving ring axially movable tight sealing device of an internal mixer according to claim 1, characterized in that: A group of rubber blocks (29) are symmetrically connected to the other side of the positioning ring (27), and the rubber blocks (29) and the supporting ring (21) are in a corresponding form to each other.

4. The single-moving ring axially movable compression seal device of an internal mixer according to claim 1, characterized in that: The body component also includes a bearing (12); The bearing (12) is connected to both sides of the outer wall of the device housing (11), and the sealing ring (23) and the rubber ring (24) are both surrounded on the outer surface of the bearing (12).

5. The single-moving ring axially movable compression seal device for an internal mixer according to claim 1, characterized in that: It also includes a fixing component, which includes a positioning block (31), a fixing rod (32), a fixing hole (33) and a fixing ring (34); The outer surface of the device housing (11) is equidistantly connected to a positioning block (31), a fixing hole (33) is provided in the middle of the positioning block (31), and the other side of the support ring (21) is equidistantly connected to a fixing rod (32), and the fixing rod (32) is connected to the inside of the fixing hole (33) by insertion.

6. A single-ring axially movable force-tightening sealing device for an internal mixer according to claim 5, characterized in that: The fixing ring (34) is connected to the outer surface of the fixing rod (32), and the supporting ring (21) surrounds the outer surface of the device housing (11), and the fixing ring (34) is attached to one side of the positioning block (31).

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