Special device for changing longitudinal cutter of rewinding machine in papermaking equipment

Abstract

The utility model relates to a special device for changing a longitudinal cutter of a rewinding machine in papermaking equipment, which relates to the technical field of papermaking equipment and comprises a wrench body, a handle connected with the bottom of the wrench body, a mounting groove formed in the side surface of the wrench body and a shaft hole penetrating through the mounting groove, a fixed claw mounted on the wrench body along the extension direction of the mounting groove, and a fixed bolt enabling the fixed claw to extend into a blade of the longitudinal cutter; the adjusting shaft is arranged in the shaft hole, the gear is installed on the adjusting shaft and meshed with the edge of the rack, the knob is arranged at one end of the adjusting shaft, and the knob is rotated to adjust the left-right position of the movable claw so that the movable claw can be clamped at the position of the longitudinal cutter disc, and then the longitudinal cutter blade can be detached. The blades of the longitudinal cutters of the rewinding machines of different models can be quickly replaced; the movable claw is arranged, and the abutting position of the movable claw and the longitudinal cutter disc serves as a force exerting fixing point, so that time and labor are saved, and the rewinding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking equipment, in particular to a special device for changing a slitting knife of a rewinder in papermaking equipment. Background Art

[0002] Rewinding is an essential process in the papermaking production process. The rewinding process can cut the paper tube base paper produced by the papermaking machine again and roll it into finished roll paper. In this process, the longitudinal slitting knife that can cut the paper tube base paper plays an important role.

[0003] In actual production, the rewinder runs at a high speed and for a long time, and the slitting blade wears quickly. Due to the high rotation sensitivity of the slitting blade, it is easy to rotate and slip when using an ordinary hexagonal wrench to replace the blade, resulting in uneven force application, making blade replacement time-consuming and labor-intensive, and even requiring the entire slitting blade to be removed to replace the blade, seriously affecting the rewinding efficiency. Utility Model Content

[0004] In order to improve the problems in the above-mentioned background technology, the utility model provides a special device for changing the slitting blade of a rewinder in a papermaking equipment.

[0005] The utility model provides a special device for changing the slitting blade of a rewinder in a papermaking device, which adopts the following technical solutions:

[0006] A special device for changing the longitudinal cutter of a rewinder in papermaking equipment includes a wrench body, a mounting groove is provided on the side of the wrench body and an axial hole passes through it, a rack is provided in the mounting groove for left and right movement, and a movable claw is installed on the outer side of the rack; an adjustment shaft is provided in the axial hole, a gear is installed on the adjustment shaft and meshes with the edge of the rack, a knob is provided at one end of the adjustment shaft, and the other end of the adjustment shaft is tightened with a nut; a fixed claw is installed on the wrench body along the extension direction of the mounting groove.

[0007] Preferably, the fixed claw adopts a regular hexagonal shaft body, the end of the fixed claw is provided with an external thread, the fixed claw passes through the wrench body and the end of the fixed claw is tightened with the nut 2.

[0008] Preferably, the movable claw passes through the rack and the wrench body in sequence and extends, and the extended end of the movable claw is tightened in cooperation with the nut.

[0009] Preferably, a U-shaped blocking cover is installed on one side of the mounting groove of the wrench body, and the corner of the blocking cover is fixed to the wrench body by fixing screws.

[0010] Preferably, the bottom of the wrench body is connected to a handle.

[0011] In summary, the present invention has the following beneficial technical effects:

[0012] The utility model provides a special device for changing the longitudinal cutter of a rewinder in a papermaking device. A fixed claw is mounted on a wrench body and is tightened with a nut so that the fixed claw extends into a fixing bolt of the longitudinal cutter blade when in use. The left and right positions of the movable claw are adjusted by turning the knob so that the movable claw is stuck in the position of the longitudinal cutter disc. The longitudinal cutter blade can be removed, and the longitudinal cutter blades of different models of rewinders can be quickly replaced. By arranging the movable claw, the abutment position of the movable claw and the longitudinal cutter disc is used as a force fixing point, which saves time and effort and improves the rewinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front installation perspective view of a dedicated device for changing slitting blades of a rewinder in a papermaking device according to an embodiment of the utility model;

[0014] Figure 2 This is a side installation perspective view of a dedicated device for changing slitting blades of a rewinder in a papermaking device according to an embodiment of the present utility model;

[0015] Figure 3 yes Figure 1 A in the middle is an enlarged schematic diagram;

[0016] Figure 4 This is a schematic structural diagram of a fixed claw according to an embodiment of the present utility model;

[0017] Figure 5 It is a structural schematic diagram of a blocking cover according to an embodiment of the present utility model.

[0018] Explanation of the accompanying symbols: 1. Wrench body; 2. Mounting groove; 3. Shaft hole; 4. Rack; 5. Moving jaw; 6. Adjusting shaft; 7. Gear; 8. Knob; 9. Nut 1; 10. Fixed jaw; 11. External thread; 12. Nut 2; 13. Nut 3; 14. Cover; 15. Fixing screw; 16. Handle. DETAILED DESCRIPTION

[0019] The following combination Figure 1-Figure 5 The utility model is described in further detail.

[0020] The embodiment of the utility model discloses a special device for changing the slitting blade of a rewinder in papermaking equipment.

[0021] Reference Figure 1 、 Figure 2 、 Figure 3, A special device for changing the longitudinal cutting knife of a rewinder in a papermaking equipment, which includes a wrench body 1. An installation groove 2 is opened on the side of the wrench body 1 and penetrates through a shaft hole 3. A rack 4 is movably arranged left and right in the installation groove 2, and a moving claw 5 is installed on the outer side of the rack 4; A adjusting shaft 6 is arranged in the shaft hole 3, a gear 7 is installed on the adjusting shaft 6 and meshes with the edge of the rack 4. One end of the adjusting shaft 6 is provided with a knob 8, and the other end of the adjusting shaft 6 is screwed tightly with a first nut 9; A fixed claw 10 is installed on the wrench body 1 along the extending direction of the installation groove 2.

[0022] Refer to Figure 1 , Figure 3 , The gear 7 meshes with the edge of the rack 4. When the gear 7 rotates clockwise, the rack 4 moves to the right, driving the moving claw 5 to move to the right; When the gear 7 rotates counterclockwise, the rack 4 moves to the left, driving the moving claw 5 to move to the left.

[0023] Refer to Figure 4 , The fixed claw 10 adopts a regular hexagonal shaft body. According to the different sizes of the fixing bolts of the longitudinal cutting knife blade, shaft bodies of different diameters are used. An external thread 11 is opened at the end of the fixed claw 10. The fixed claw 10 penetrates through the wrench body 1 and the end of the fixed claw 10 is screwed tightly with a second nut 12.

[0024] Refer to Figure 1 , Figure 2 , The moving claw 5 sequentially penetrates through the rack 4 and the wrench body 1 and extends. The extended end of the moving claw 5 is screwed tightly with a third nut 13.

[0025] Refer to Figure 2 , Figure 5 , On one side of the wrench body 1 where the installation groove 2 is opened, a "hui" - shaped cover 14 is installed. The corners of the cover 14 are fixed on the wrench body 1 through fixing screws 15.

[0026] Refer to Figure 1 , Figure 2 , The bottom of the wrench body 1 is connected to a handle 16.

[0027] The implementation principle of a special device for changing the longitudinal cutting knife of a rewinder in a papermaking equipment in an embodiment of the present utility model is as follows: Select a corresponding fixed claw 10 according to the size of the fixing bolt of the longitudinal cutting knife blade to be replaced. Install the fixed claw 10 on the wrench body 1 and tighten the second nut 12 so that the fixed claw 10 extends into the fixing bolt of the longitudinal cutting knife blade; Loosen the first nut 9 cooperating with the adjusting shaft 6 and the third nut 13 cooperating with the moving claw 5, and rotate the knob 8 to adjust the left - right position of the moving claw 5 so that the moving claw 5 is stuck at the position of the longitudinal cutting knife disc, then the longitudinal cutting knife blade can be disassembled.

[0028] The above are all the preferred embodiments of the present utility model. It does not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A special device for changing the slitting blade of a rewinder in a papermaking device, characterized in that: The invention comprises a wrench body (1), a mounting groove (2) is provided on the side of the wrench body (1) and a shaft hole (3) passes through the wrench body (1), a rack (4) is movably arranged in the mounting groove (2), and a movable claw (5) is installed on the outer side of the rack (4); an adjustment shaft (6) is arranged in the shaft hole (3), a gear (7) is installed on the adjustment shaft (6) and meshes with the edge of the rack (4), a knob (8) is arranged at one end of the adjustment shaft (6), and the other end of the adjustment shaft (6) is tightened with a nut (9); and a fixed claw (10) is arranged on the wrench body (1) along the extension direction of the mounting groove (2).

2. The dedicated device for changing the slitting blade of a rewinding machine in a papermaking device according to claim 1, characterized in that: The fixed jaw (10) adopts a regular hexagonal shaft body, and an external thread (11) is provided at the end of the fixed jaw (10). The fixed jaw (10) passes through the wrench body (1) and the end of the fixed jaw (10) is tightened in cooperation with nut 2 (12).

3. The dedicated device for changing the slitting blade of a rewinding machine in a papermaking device according to claim 1, characterized in that: The movable claw (5) sequentially penetrates the rack (4) and the wrench body (1) and extends, and the extended end of the movable claw (5) is tightened in cooperation with the nut three (13).

4. The dedicated device for changing the slitting blade of a rewinding machine in a papermaking device according to claim 1, characterized in that: A U-shaped blocking cover (14) is installed on one side of the wrench body (1) on which the mounting groove (2) is provided, and a corner portion of the blocking cover (14) is fixed to the wrench body (1) by means of fixing screws (15).

5. The dedicated device for changing the slitting blade of a rewinding machine in a papermaking device according to claim 1, characterized in that: The bottom of the wrench body (1) is connected to a handle (16).

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