Graphite ribbon rolling device

Abstract

The utility model discloses a graphite ribbon rolling device which comprises a graphite ribbon, a forming rolling disc and a clamping and pressing rolling disc, the rolling surface of the forming rolling disc is opposite to the rolling surface of the clamping and pressing rolling disc, and a rolling gap is formed between the rolling surfaces of the forming rolling disc and the clamping and pressing rolling disc; the graphite belt can be wound on the rolling surface of the forming rolling disc and passes through the rolling gap along with the rotation of the forming rolling disc; limiting pieces are arranged on the two sides of the rolling gap respectively, the two limiting pieces are arranged on the two sides of the rolling gap in a blocking mode respectively, and the width of the rolled graphite ribbon is limited. The limiting piece is an actively rotating roller, and the graphite belt is in rolling contact with the rolling surface of the roller when passing through the rolling gap. The limiting piece on at least one side is connected with a first displacement mechanism, and the first displacement mechanism can drive the limiting piece to be away from the rolling gap, so that a graphite separation opening is formed in one side of the rolling gap. The clamping and pressing rolling disc is connected with a second displacement mechanism, and the second displacement mechanism can drive the clamping and pressing rolling disc to be close to or away from the forming rolling disc so as to change the size of the rolling gap. According to the utility model, the graphite belt can be rolled and formed into the packing ring.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite packing rings, in particular to a graphite belt rolling device. Background Art

[0002] Graphite packing ring is a kind of seal, which has the advantages of high temperature resistance, corrosion resistance and self-lubrication, and is widely used in pumps, valves and other seals in various industries. Most of the existing graphite packing rings are pressed by molds. In order to improve the forming process of graphite packing rings, graphite packing rings formed by rolling graphite strips have gradually appeared. For this purpose, a suitable graphite strip rolling device is needed. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a graphite strip rolling device that can roll the graphite strip into a graphite packing ring.

[0004] Technical solution: To achieve the above-mentioned purpose, the utility model provides a graphite tape rolling device, comprising a graphite tape, a forming roller and a clamping roller, the rolling surface of the forming roller is opposite to the rolling surface of the clamping roller, and a rolling gap is formed between the two rolling surfaces; the graphite tape can be wound on the rolling surface of the forming roller and pass through the rolling gap as the forming roller rotates; limiting members are respectively arranged on both sides of the rolling gap, and the two limiting members are respectively blocked on both sides of the rolling gap to limit the width of the graphite tape after rolling.

[0005] Furthermore, the limiting member is an actively rotating roller, and the graphite belt rolls in contact with the rolling surface of the roller when passing through the rolling gap.

[0006] Furthermore, the limiting member on at least one side is connected to the first displacement mechanism, and the first displacement mechanism can drive the limiting member away from the rolling gap, so that a graphite separation opening is formed on one side of the rolling gap.

[0007] Furthermore, the clamping roller is connected to a second displacement mechanism, and the second displacement mechanism can drive the clamping roller to move closer to or away from the forming roller to change the size of the rolling gap.

[0008] Furthermore, the rolling surface width of the clamping roller is consistent with the rolling surface width of the forming roller, and the limiting member is attached to the side disk surfaces of the forming roller and the clamping roller.

[0009] Furthermore, a discharge tray is provided on one side of the forming roller, and the rolled graphite ribbon is hung on the discharge tray; one end of the graphite ribbon is wound on the forming roller, and when the forming roller rotates, the discharge tray is pulled to rotate and discharge the graphite ribbon.

[0010] Furthermore, a retractable piercing object is arranged on the rolling surface of the forming roller, and a retractable driving mechanism is arranged inside the forming roller to drive the piercing object to retract and retract; when the piercing object is extended, it can pierce the graphite ribbon to fix the graphite ribbon on the rolling surface of the forming roller; when the piercing object is retracted, it closes the rolling surface of the forming roller.

[0011] Beneficial effects: The utility model provides a graphite tape rolling device, in which a rolling gap is formed between a forming roller and a clamping roller, the graphite tape is wound on the forming roller, and is gradually rolled into a graphite filler ring when passing through the rolling gap; rollers are also provided on both sides of the rolling gap, and the graphite tape rolls in contact with the rolling surface of the roller when passing through the rolling gap, and the height of the ring body of the graphite filler ring after being formed is controlled by the rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attached Figure 1 It is a schematic diagram of the coordination of the forming roller, the clamping roller and the discharge tray;

[0013] Attached Figure 2 Schematic diagram of the limiters on both sides of the rolling gap. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings.

[0015] As attached Figures 1 to 2 The graphite strip rolling device comprises a graphite strip 1, a forming roller 2 and a clamping roller 3. The rolling surface of the forming roller 2 is opposite to the rolling surface of the clamping roller 3, and a rolling gap 4 is formed between the rolling surfaces of the two. The forming roller 2 and the clamping roller 3 are actively rotated under the drive of the motor. The rotation direction of the forming roller 2 and the clamping roller 3 is shown in the attached figure. Figure 1 As shown in FIG, when the forming roller 2 rotates clockwise, the clamping roller 3 rotates counterclockwise.

[0016] The graphite ribbon 1 can be wound on the rolling surface of the forming roller 2 and pass through the rolling gap 4 as the forming roller 2 rotates. Multiple circles of graphite are wound on the rolling surface of the forming roller 2 and gradually formed into a graphite packing ring under the rolling action of the rolling gap 4. The rolling surface size of the forming roller 2 controls the inner diameter size of the graphite packing ring, and the size of the rolling gap 4 controls the outer diameter size of the graphite packing ring. Limiting members are respectively provided on both sides of the rolling gap 4, and the two limiting members are respectively blocked on both sides of the rolling gap 4 to limit the width of the graphite ribbon 1 after rolling, thereby controlling the ring body height of the graphite packing ring after forming. If there is no limiting member, the graphite ribbon 1 will be squeezed flat after rolling, and then detached from both sides of the rolling surface of the forming roller 2, and cannot be formed into a circular graphite packing ring.

[0017] As attached Figure 2As shown in , the stopper is an actively rotating roller 5, and the graphite ribbon 1 rolls and contacts with the rolling surface of the roller 5 when passing through the rolling gap 4. The roller 5 can also apply an extrusion force to the graphite ribbon 1 when rolling, so that the graphite ribbon 1 is subjected to extrusion forces in four directions at the same time when passing through the rolling gap 4, thereby more accurately controlling the cross-sectional shape of the formed graphite packing ring.

[0018] At least one side of the limiting member is connected to the first displacement mechanism, and the first displacement mechanism can drive the limiting member away from the rolling gap 4, so that a graphite separation port is formed on one side of the rolling gap 4, and the formed graphite packing ring can be removed from the graphite separation port.

[0019] The clamping roller 3 is connected to the second displacement mechanism, which can drive the clamping roller 3 to move closer to or farther from the forming roller 2 to change the size of the rolling gap 4, thereby changing the shape of the obtained graphite packing ring. When the formed graphite packing ring needs to be removed, the clamping roller 3 can also be moved away from the forming roller 2, so that the graphite packing ring is easier to remove from the forming roller 2.

[0020] The rolling surface width of the clamping roller 3 is consistent with the rolling surface width of the forming roller 2, and the limiting member is attached to the side disk surfaces of the forming roller 2 and the clamping roller 3. Figure 2 As shown in , even if the clamping roller 3 moves toward or away from the forming roller 2, the rolling surface of the roller 5 can still fit on the side disc surfaces of the forming roller 2 and the clamping roller 3, so that graphite packing rings of different sizes can be produced.

[0021] A discharge tray 6 is provided on one side of the forming roller 2, and the rolled graphite ribbon 1 is hung on the discharge tray 6. One end of the graphite ribbon 1 is wound on the forming roller 2, and when the forming roller 2 rotates, the discharge tray 6 is pulled to rotate and discharge the graphite ribbon. When the graphite ribbon 1 released by the discharge tray 6 reaches a certain length, the graphite ribbon 1 is cut off, and the multiple turns of the graphite ribbon 1 wound on the forming roller 2 are continuously rolled, and the surface is gradually smoothed and formed into a graphite packing ring.

[0022] A retractable puncturing object is arranged on the rolling surface of the forming roller 2, and a retractable driving mechanism for driving the puncturing object to retract is arranged inside the forming roller 2. The retractable driving mechanism can be an electric retractable rod, and the movable end of the electric retractable rod is connected to the puncturing object. When the graphite tape 1 is wound on the forming roller 2, the end of the graphite tape 1 needs to be fixed on the forming roller 2. At this time, the puncturing object can be extended from the rolling surface of the forming roller 2, and the puncturing object will be allowed to pierce the graphite tape 1 to fix the graphite tape 1 on the rolling surface of the forming roller 2. When the graphite tape 1 has been wound on the forming roller 2 for a certain number of turns, the puncturing object is controlled to retract, and when the puncturing object retracts, the rolling surface of the forming roller 2 is bridged, so that the rolling surface of the forming roller 2 is still a smooth annular surface. Small holes will be generated on the graphite tape 1 due to the retraction of the puncturing object. In the subsequent rolling of the graphite tape 1, the small holes will be gradually squeezed out and will not affect the overall uniformity of the graphite packing ring.

[0023] The working method of the utility model is as follows: the rolled graphite ribbon 1 is hung on the discharge tray 6, one end of the graphite ribbon 1 is fixed on the rolling surface of the forming roller 2, and then the forming roller 2, the clamping roller 3 and the two rollers 5 start to rotate at the same time; after the graphite ribbon 1 released by the discharge tray 6 reaches the specified length, the graphite ribbon 1 is cut off, and the multiple turns of the graphite ribbon 1 driven by the forming roller 2 continue to pass through the rolling gap 4, so that the port at the cut-off point of the graphite ribbon 1 gradually becomes smooth under the rolling action, and then is formed into a graphite packing ring; when the graphite packing ring needs to be removed from the forming roller 2, the forming roller 2, the clamping roller 3 and the two rollers 5 all stop rotating, the clamping roller 3 moves in the direction away from the forming roller 2, and the roller 5 moves in the direction away from the rolling gap 4, so that the operation is convenient when removing the graphite packing ring.

[0024] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A graphite strip rolling device, characterized in that: The invention comprises a graphite strip (1), a forming roller (2) and a clamping roller (3); the rolling surface of the forming roller (2) is opposite to the rolling surface of the clamping roller (3), and a rolling gap (4) is formed between the rolling surfaces of the two rollers; the graphite strip (1) can be wound on the rolling surface of the forming roller (2) and pass through the rolling gap (4) as the forming roller (2) rotates; and limiting members are respectively arranged on both sides of the rolling gap (4), and the two limiting members are respectively blocked on both sides of the rolling gap (4) to limit the width of the graphite strip (1) after rolling.

2. A graphite strip rolling device according to claim 1, characterized in that: The limiting member is an actively rotating roller (5), and the graphite belt (1) is in rolling contact with the rolling surface of the roller (5) when passing through the rolling gap (4).

3. A graphite strip rolling device according to claim 1, characterized in that: At least one side of the limiting member is connected to the first displacement mechanism, and the first displacement mechanism can drive the limiting member away from the rolling gap (4), so that a graphite separation opening is formed on one side of the rolling gap (4).

4. The graphite strip rolling device according to claim 1, characterized in that: The clamping roller (3) is connected to a second displacement mechanism, and the second displacement mechanism can drive the clamping roller (3) to move closer to or farther away from the forming roller (2) to change the size of the rolling gap (4).

5. A graphite strip rolling device according to claim 4, characterized in that: The rolling surface width of the clamping roller (3) is consistent with the rolling surface width of the forming roller (2), and the limiting member is attached to the side surfaces of the forming roller (2) and the clamping roller (3).

6. The graphite strip rolling device according to claim 1, characterized in that: A discharge tray (6) is provided on one side of the forming roller (2), and the rolled graphite ribbon (1) is hung on the discharge tray (6); one end of the graphite ribbon (1) is wound on the forming roller (2), and when the forming roller (2) rotates, the discharge tray (6) is pulled to rotate and discharge the graphite ribbon.

7. The graphite strip rolling device according to claim 1, characterized in that: A retractable piercing object is arranged on the rolling surface of the forming roller (2), and a retractable driving mechanism is arranged inside the forming roller (2) for driving the piercing object to retract and retract; when the piercing object is extended, it can pierce the graphite ribbon (1) to fix the graphite ribbon (1) on the rolling surface of the forming roller (2); when the piercing object is retracted, it closes the rolling surface of the forming roller (2).

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