Machine rod of edge roller and sealing device of machine rod

Abstract

The utility model discloses an edge roller rod and a sealing device thereof, the sealing device is used for connecting the edge roller rod with a tin bath in a sealing manner, and the sealing device comprises a reducer union, a sealing corrugated pipe used for being connected with an external pipeline of the edge roller rod in a sealing manner, and a heat insulation corrugated pipe used for being connected with the tin bath in a sealing manner; the heat insulation corrugated pipe, the reducer union and the sealing corrugated pipe are sequentially connected and can be arranged outside a machine rod of the edge roller in a sleeving mode. The heat insulation corrugated pipe can effectively prevent heat from radiating heat from the inside of the heat insulation corrugated pipe to the external environment, so that heat loss is avoided; and the sealing corrugated pipe does not need to be subjected to heat insulation treatment, so that the expansion area of heat radiation can be effectively reduced by reducing the diameter of the reducer union, and the reducer union is filled with a corresponding barrier, so that heat can be further insulated, and the heat insulation and sealing effects are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing components, and particularly relates to a side drawing machine rod and a sealing device thereof. Background Art

[0002] In float glass production, the edge drawing machine is the core equipment for forming float glass. When in use, the machine rod of the edge drawing machine is inserted into the tin bath from the side, and the edge drawing wheel set at the front end of the machine rod continuously drives the liquid glass floating above the tin liquid to move in the direction of the subsequent processing equipment, and the glass is drawn into a glass plate of a certain thickness during the movement of the glass. Since the machine rod of the edge drawing machine is plugged in to cooperate with the tin bath, there is usually a gap at the connection between the machine rod of the edge drawing machine and the tin bath. If it cannot be effectively sealed, the temperature inside the tin bath and the protective gas will leak out, which will not only affect the production quality of the glass, but also damage the processing environment, thereby interfering with the normal operation of other equipment.

[0003] In order to solve the above problems, a Chinese utility model patent with announcement number CN206858419U discloses a sealing device for a float glass edge drawing machine, which includes a sliding adjustment device, a front plate, a rear plate, a bellows, a front sealing sleeve, and a rear sealing sleeve. The sliding adjustment device is arranged between the edge drawing machine rod and the opening of the tin bath wall, one side of the front plate is connected to the tin bath wall, and the other side is connected to the front sealing sleeve. The front plate and the rear plate are both provided with a central through hole, the edge drawing machine rod is inserted into the central through hole provided in the front plate and the rear plate, the left side of the rear plate is connected with the rear sealing sleeve, the bellows is a hollow tube, and the two ends of the bellows are respectively connected to the front sealing sleeve and the rear sealing sleeve, graphite sleeves are arranged on the inner walls of the front sealing sleeve and the rear sealing sleeve, and the graphite sleeves are tightly fitted on the outer wall of the edge drawing machine rod, so as to realize the flexible adjustment of the edge drawing machine rod angle, simple structure, good airtightness, and easy disassembly and assembly.

[0004] However, it was found during actual use that this type of sealing device still has shortcomings, namely, the overall thermal insulation performance is poor, and the heat in the tin bath will still be quickly dissipated through the bellows, which will cause the temperature inside the tin bath to drop, and then the air pressure inside the tin bath will decrease, allowing outside air to easily flow into the tin bath through other gaps in the equipment, causing oxidation reactions of related substances, and ultimately affecting the quality of the glass; at the same time, an external pipe is usually provided on the edge drawing machine rod, and the edge drawing machine rod and the external pipe still need to be kept sealed, and this type of sealing device can only be used for sealing between the edge drawing machine rod and the tin bath, so it still cannot solve the problem of overall sealing. Utility Model Content

[0005] The technical problem to be solved by the utility model is: how to provide a sealing device capable of alleviating heat escape.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A sealing device, which is used to seal the rod of a side edge drawing machine with a tin bath, and comprises a reducer, a sealing bellows for sealingly connecting to an external pipeline of the side edge drawing machine rod, and a heat insulating bellows for sealingly connecting to the tin bath;

[0008] The heat-insulating bellows, the reducer and the sealing bellows are connected in sequence and can be sleeved outside the machine rod of the edge drawing machine.

[0009] Furthermore, a first connecting ring is provided at one end of the heat-insulating bellows away from the reducer;

[0010] The first connecting ring is coaxially arranged with the heat insulating bellows;

[0011] The outer diameter of the first connecting ring is greater than the outer diameter of the thermal insulation bellows.

[0012] Furthermore, a second connecting ring is provided at the other end of the heat-insulating bellows;

[0013] A third connecting ring is provided at one axial end of the reducer;

[0014] When the heat-insulating bellows is connected to the reducer, the mounting surface of the second connecting ring and the mounting surface of the third connecting ring are in close contact with each other.

[0015] Furthermore, the inner diameter of the second connecting ring is smaller than the inner diameter of the third connecting ring.

[0016] Furthermore, the other axial end of the reducer is provided with a first connecting section;

[0017] The end of the sealing bellows connected to the reducer is provided with a second connecting section;

[0018] When the sealing bellows is connected to the reducer, the first connecting section and the second connecting section are sleeved with each other.

[0019] Further, the diameter of the second connecting section is smaller than the diameter of the first connecting section;

[0020] The first connecting section and the second connecting section are fitted with a small gap.

[0021] Furthermore, a first fixing hoop is provided on the periphery of the first connecting section.

[0022] Furthermore, a supporting ring is provided on the inner side of the second connecting section.

[0023] Furthermore, a third connecting section is provided at one end of the sealing bellows away from the reducer;

[0024] A second fixing hoop is disposed on the periphery of the third connecting section.

[0025] Furthermore, a top drawing machine rod is provided, comprising a rod body and the above-mentioned sealing device;

[0026] The sealing device is sleeved on the outside of the machine rod body;

[0027] The machine rod body comprises a coaxially connected machine rod main shaft, a pipe connection end and an external pipe;

[0028] The heat-insulating bellows is sleeved on the outside of the main shaft of the machine rod;

[0029] The reducer is sleeved on the outside of the pipe connection end;

[0030] The sealing bellows is sleeved on the outside of the external pipeline;

[0031] After the sealing device is assembled with the machine rod body, the two ends of the pipe connection end head respectively contact with one end surface of the heat insulation bellows and one end surface of the sealing bellows.

[0032] The beneficial effects of the utility model are as follows: the sealing device of the edge drawing machine rod provided by the utility model can effectively prevent heat from radiating from the inside of the heat insulating bellows to the external environment through the heat insulating bellows, thereby preventing heat loss; and because the sealing bellows does not need to be insulated, the diameter change by the reducer can effectively reduce the spread area of ​​the heat radiation, and filling the reducer with corresponding barriers can further isolate the heat and achieve the effect of heat insulation and sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the sealing device in the utility model;

[0034] Figure 2 It is a front cross-sectional view of the sealing device and the machine rod body of the utility model when assembled;

[0035] Figure 3 for Figure 2 A magnified view of point A;

[0036] Description of labels:

[0037] 1. Insulation bellows; 11. Insulation layer; 12. First connecting ring; 13. Second connecting ring;

[0038] 2. reducer; 21. third connecting ring; 22. first connecting section; 23. first fixing hoop;

[0039] 3. Sealing bellows; 31. Second connecting section; 32. Support ring; 33. Third connecting section; 34. Second fixing hoop;

[0040] 4. Machine rod body; 41. Machine rod main shaft; 42. Pipe connection end; 43. External pipeline. DETAILED DESCRIPTION

[0041] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0042] The existing edge drawing machine rod ensures the sealing of the tin bath by arranging a corresponding bellows on the outside and arranging a front sealing sleeve and a rear sealing sleeve at both ends of the bellows respectively. However, this type of sealing device still has shortcomings in actual use, that is, the overall thermal insulation performance is poor, and the heat in the tin bath will still be quickly dissipated through the bellows, thereby causing the temperature inside the tin bath to drop, and then the air pressure inside the tin bath to decrease, allowing outside air to easily flow into the tin bath through other gaps in the equipment, causing oxidation reactions of related substances, and ultimately affecting the quality of the glass; at the same time, an external pipe is usually provided on the edge drawing machine rod, and the edge drawing machine rod and the external pipe still need to be kept sealed, and this type of sealing device can only be used for the sealing work between the edge drawing machine rod and the tin bath, so it still cannot solve the problem of overall sealing.

[0043] Based on this, please refer to Figures 1 to 3A machine rod of a hemming machine is proposed, comprising a machine rod body 4 and a sealing device; the sealing device is sleeved on the outside of the machine rod body 4; the machine rod body 4 comprises a coaxially connected machine rod main shaft 41, a pipe connecting end 42 and an external pipe 43; a heat-insulating bellows 1 is sleeved on the outside of the machine rod main shaft 41; a reducer 2 is sleeved on the outside of the pipe connecting end 42; a sealing bellows 3 is sleeved on the outside of the external pipe 43; after the sealing device is assembled with the machine rod body 4, two ends of the pipe connecting end 42 respectively conflict with one end face of the heat-insulating bellows 1 and one end face of the sealing bellows 3. When the machine rod body 4 and the sealing device cooperate with each other and ensure that the two ends of the pipe connection end 42 are respectively in conflict with one end face of the heat-insulating bellows 1 and one end face of the sealing bellows 3, it can not only effectively ensure the overall thermal insulation and airtightness, but also prevent heat from being transferred from the heat-insulating bellows 1 to the sealing bellows 3, thereby protecting the components of the sealing bellows 3 and ensuring the stability of the production process. The sealing device is used to seal the machine rod of the edge drawing machine with the tin bath, including a reducer 2, a sealing bellows 3 for sealingly connecting with the external pipe 43 of the machine rod of the edge drawing machine, and an insulation bellows 1 for sealingly connecting with the tin bath; the insulation bellows 1, the reducer 2 and the sealing bellows 3 are connected in sequence and can be sleeved outside the machine rod of the edge drawing machine. Specifically, the reducer 2 is a funnel-shaped structure; and an insulation layer 11 is provided on the inner wall of the insulation bellows 1.

[0044] It can be understood that the sealing device of the present invention, by providing an insulating layer 11 on the inner wall of the insulating bellows 1, can effectively prevent heat from radiating to the external environment through the insulating bellows 1, thereby causing heat loss; and because the sealing bellows 3 does not need to be insulated, the diameter change of the transition connecting pipe can effectively reduce the spread area of ​​the heat radiation, and filling the transition connecting pipe with corresponding barriers can further isolate the heat and achieve the effect of thermal insulation and sealing.

[0045] In some embodiments, a first connecting ring 12 is provided at one end of the thermal insulation bellows 1 away from the reducer 2; the first connecting ring 12 is coaxially arranged with the thermal insulation bellows 1; and the outer diameter of the first connecting ring 12 is larger than the outer diameter of the thermal insulation bellows 1. The first connecting ring 12 can not only facilitate the connection of the thermal insulation bellows 1 with any equipment that needs to ensure air tightness, but also extend the first connecting ring 12 toward the outside of the thermal insulation bellows 1 to further expand the coverage of the thermal insulation bellows 1, avoid the gap at the equipment connection from being exposed to the external environment, and thus better ensure the air tightness after the overall connection.

[0046] In some embodiments, the other end of the thermal insulation bellows 1 is provided with a second connection ring 13; one end of the reducer 2 in the axial direction is provided with a third connection ring 21; when the thermal insulation bellows 1 and the reducer 2 are connected, the mounting surface of the second connection ring 13 and the mounting surface of the third connection ring 21 are in close contact with each other. The second connection ring 13 and the third connection ring 21 provide structural support for the connection work between the thermal insulation bellows 1 and the reducer 2; and after the thermal insulation bellows 1 and the reducer 2 are connected, ensuring that the mounting surface of the second connection ring 13 and the mounting surface of the third connection ring 21 are in close contact with each other can further improve the air tightness of the equipment.

[0047] In some embodiments, the inner diameter of the second connecting ring 13 is smaller than the inner diameter of the third connecting ring 21. This design can form a size drop area with a limiting effect at the connection between the heat insulating bellows 1 and the reducer 2; when a corresponding blocking member is subsequently provided in the reducer 2, the blocking member is assembled in a manner that the mounting surface of the second connecting ring 13 contacts with the mounting surface, which can effectively block the heat in the heat insulating bellows 1, and avoid damage to the equipment with weak heat resistance in the sealing bellows 3 due to the gradual diffusion of heat.

[0048] In some embodiments, the other end of the reducer 2 in the axial direction is provided with a first connecting section 22; the end of the sealing bellows 3 connected to the reducer 2 is provided with a second connecting section 31; when the sealing bellows 3 is connected to the reducer 2, the first connecting section 22 and the second connecting section 31 are sleeved with each other; the diameter of the second connecting section 31 is smaller than the diameter of the first connecting section 22; the first connecting section 22 and the second connecting section 31 are matched with a small gap; the periphery of the first connecting section 22 is provided with a first fixing hoop 23; the inner side of the second connecting section 31 is provided with a support ring 32. Specifically, the first connecting section 22 and the second connecting section 31 are both cylindrical structures.

[0049] The sleeve connection can facilitate the installation and disassembly of the reducer 2 and the sealing bellows 3, and ensure that the diameter of the second connecting section 31 is smaller than the diameter of the first connecting section 22, which can protect the equipment inside the sealing bellows 3 and prevent dust, moisture or corrosive substances in the external environment from directly entering the sealing bellows 3, thereby affecting the normal operation of the equipment; when the first connecting section 22 and the second connecting section 31 are sleeved with each other, the first fixing hoop 23 can further lock the first connecting section 22 and the second connecting section 31 to reduce the gap between the first connecting section 22 and the second connecting section 31, and the support ring 32 can avoid excessive locking force applied by the first fixing hoop 23, thereby causing deformation of the first connecting section 22 and the second connecting section 31, thereby causing the first connecting section 22 and the second connecting section 31 to lose the sealing effect.

[0050] In some embodiments, a third connecting section 33 is provided at one end of the sealing bellows 3 away from the reducer 2; a second fixing hoop 34 is provided on the periphery of the third connecting section 33. Specifically, the third connecting section 33 is a cylindrical structure. This structure can facilitate the connection between the sealing bellows 3 and the shell of the edge drawing machine. After being tightened by the second fixing hoop 34, the internal space of the sealing bellows 3 can be isolated from the external environment, which not only ensures the airtightness of the sealing bellows 3, but also protects the components inside the sealing bellows 3.

[0051] Please refer to Figure 1 and Figure 3 , Embodiment 1 of the present utility model is:

[0052] A sealing device is used to seal the rod of the edge drawing machine with a tin bath, comprising a reducer 2, a sealing bellows 3 for sealingly connecting with an external pipe 43 of the edge drawing machine rod, and a heat-insulating bellows 1 for sealingly connecting with the tin bath; the heat-insulating bellows 1, the reducer 2, and the sealing bellows 3 are connected in sequence and can be sleeved outside the edge drawing machine rod. Specifically, the reducer 2 is a funnel-shaped structure; and a heat-insulating layer 11 is provided on the inner wall of the heat-insulating bellows 1.

[0053] In this embodiment, a first connecting ring 12 is provided at one end of the thermal insulation bellows 1 away from the reducer 2; the first connecting ring 12 is coaxially arranged with the thermal insulation bellows 1; and the outer diameter of the first connecting ring 12 is larger than the outer diameter of the thermal insulation bellows 1.

[0054] In this embodiment, a second connecting ring 13 is provided at the other end of the insulating bellows 1; a third connecting ring 21 is provided at one axial end of the reducer 2; when the insulating bellows 1 and the reducer 2 are connected, the mounting surface of the second connecting ring 13 and the mounting surface of the third connecting ring 21 are in close contact with each other.

[0055] In this embodiment, the inner diameter of the second connecting ring 13 is smaller than the inner diameter of the third connecting ring 21 .

[0056] In this embodiment, the other end of the reducer 2 in the axial direction is provided with a first connecting section 22; the end of the sealing bellows 3 connected to the reducer 2 is provided with a second connecting section 31; when the sealing bellows 3 is connected to the reducer 2, the first connecting section 22 and the second connecting section 31 are sleeved with each other; the diameter of the second connecting section 31 is smaller than the diameter of the first connecting section 22; the first connecting section 22 and the second connecting section 31 are matched with a small gap; the periphery of the first connecting section 22 is provided with a first fixing hoop 23; the inner side of the second connecting section 31 is provided with a supporting ring 32. Specifically, the first connecting section 22 and the second connecting section 31 are both cylindrical structures.

[0057] In this embodiment, a third connecting section 33 is provided at one end of the sealing bellows 3 away from the reducer 2; a second fixing hoop 34 is provided on the periphery of the third connecting section 33. Specifically, the third connecting section 33 is a cylindrical structure.

[0058] Please refer to Figure 2 , Embodiment 2 of the present utility model is:

[0059] A machine rod of a hemming machine with a sealing device, comprising a machine rod body 4 and the above-mentioned sealing device; the sealing device is sleeved on the outside of the machine rod body 4; the machine rod body 4 comprises a coaxially connected machine rod main shaft 41, a pipe connecting end 42 and an external pipe 43; a heat-insulating bellows 1 is sleeved on the outside of the machine rod main shaft 41; a reducer 2 is sleeved on the outside of the pipe connecting end 42; a sealing bellows 3 is sleeved on the outside of the external pipe 43; the outer surface of the pipe connecting end 42 is fitted with the inner wall of the reducer 2; after the sealing device is assembled with the machine rod body 4, the large end of the pipe connecting end 42 is in conflict with the end face of the second connecting ring 13; the small end of the pipe connecting end 42 is in conflict with the end face of the second connecting section 31.

[0060] The working principle of the utility model is:

[0061] First, the heat-insulating bellows 1, the reducer 2 and the sealing bellows 3 are sequentially sleeved on the outside of the machine rod main shaft 41, the pipe connection end 42 and the external pipe 43; then, one end of the heat-insulating bellows 1 is connected to the tin bath through the first connecting ring 12, and then the second connecting ring 13 at the other end of the heat-insulating bellows 1 is tightly connected to the third connecting ring 21 of the reducer 2; then, the support ring 32 is placed in the second connecting section 31 of the sealing bellows 3, and the end of the sealing bellows 3 with the support ring 32 is inserted into the reducer 21. In the first connecting section 22 of the diameter joint 2, a first fixing hoop 23 is arranged on the periphery of the first connecting section 22, so that the first connecting section 22 is tightly connected with the second connecting section 31. At this time, the two ends of the pipe connecting end 42 respectively conflict with one end face of the insulating bellows 1 and one end face of the sealing bellows 3; finally, the third connecting section 33 and the machine rod body 4 are mutually sleeved, and a second fixing hoop 34 is arranged on the periphery of the third connecting section 33, so as to complete the sealing and heat insulation work between the sealing device and the tin bath and the edge drawing machine rod.

[0062] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A sealing device, which is used to seal the rod of a top drawing machine with a tin bath, characterized in that: It includes a reducing joint, a sealing bellows for sealing connection with an external pipeline of a machine rod of a top drawing machine, and a heat-insulating bellows for sealing connection with a tin bath; The heat-insulating bellows, the reducer and the sealing bellows are connected in sequence and can be sleeved outside the machine rod of the edge drawing machine.

2. The sealing device according to claim 1, characterized in that: The end of the heat-insulating bellows away from the reducer is provided with a first connecting ring; The first connecting ring is coaxially arranged with the heat insulating bellows; The outer diameter of the first connecting ring is greater than the outer diameter of the thermal insulation bellows.

3. The sealing device according to claim 2, characterized in that: The other end of the heat-insulating bellows is provided with a second connecting ring; A third connecting ring is provided at one axial end of the reducer; When the heat-insulating bellows is connected to the reducer, the mounting surface of the second connecting ring and the mounting surface of the third connecting ring are in close contact with each other.

4. The sealing device according to claim 3, characterized in that: The inner diameter of the second connecting ring is smaller than the inner diameter of the third connecting ring.

5. The sealing device according to claim 3, characterized in that: The other axial end of the reducer is provided with a first connecting section; The end of the sealing bellows connected to the reducer is provided with a second connecting section; When the sealing bellows is connected to the reducer, the first connecting section and the second connecting section are sleeved with each other.

6. The sealing device according to claim 5, characterized in that: The diameter of the second connecting section is smaller than the diameter of the first connecting section; The first connecting section and the second connecting section are fitted with a small gap.

7. The sealing device according to claim 6, characterized in that: A first fixing hoop is disposed on the periphery of the first connecting section.

8. The sealing device according to claim 6, characterized in that: A supporting ring is provided on the inner side of the second connecting section.

9. The sealing device according to claim 1, characterized in that: The sealing bellows is provided with a third connecting section at one end away from the reducer; A second fixing hoop is disposed on the periphery of the third connecting section.

10. A machine rod of a top drawing machine, characterized in that: It comprises a rod body and a sealing device according to any one of claims 1 to 9; The sealing device is sleeved on the outside of the machine rod body; The machine rod body comprises a coaxially connected machine rod main shaft, a pipe connection end and an external pipe; The heat-insulating bellows is sleeved on the outside of the main shaft of the machine rod; The reducer is sleeved on the outside of the pipe connection end; The sealing bellows is sleeved on the outside of the external pipeline; After the sealing device is assembled with the machine rod body, the two ends of the pipe connection end head respectively contact with one end surface of the heat insulation bellows and one end surface of the sealing bellows.

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