Adjusting structure of top-cutting lower circular knife main shaft of slitting winding machine

Abstract

The utility model relates to the technical field of slitting and winding machines, in particular to an adjusting structure of a top-cutting lower circular knife spindle of a slitting and winding machine, and a single adjusting structure comprises a supporting foot and a positioning sleeve. A slitting and rolling machine square tube tie bar is arranged on the slitting and rolling machine, and is arranged below the top cutting lower circular knife main shaft in parallel; the lower end of the positioning sleeve is fixedly connected to a square tube tie bar of the slitting and rolling machine; and an oblong hole in the vertical direction is formed in the upper part of the positioning sleeve. The lower circular knife main shaft is effectively lifted and adjusted through the supporting feet and the positioning sleeve, so that the lower circular knife main shaft can be stressed uniformly in the operation process, and the stability is improved; and the problem of cutter connection caused by non-uniform stress of the circular cutter main shaft is solved, so that the slitting quality is improved. The adjusting structure can also reduce vibration and shaking of the circular knife main shaft in the operation process, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of slitting and winding machines, in particular to an adjustment structure of a top cutting lower circular knife main shaft of a slitting and winding machine. Background Art

[0002] In a fiberglass mat production line, the slitter and winder plays a crucial role. It cuts and winds the produced fiberglass mat to specific specifications to meet the needs of subsequent production and use. However, when the slitter and winder processes wider products, the length of the lower circular blade spindle increases to match the product size. The slitter and winder is equipped with multiple sets of top circular blades. During the cutting process, the upper top circular blade cylinder is pressurized and cooperates with the lower circular blade to slit the product. When the slitter and winder has a wide width, the lower circular blade spindle is too wide, causing gravity to deform during operation. This results in uneven force on a few of the lower circular blades during operation, resulting in a "stitched" phenomenon (one section can be cut, another cannot) when slitting the fiberglass mat. This causes some finished fiberglass mats to be downgraded, seriously affecting product quality.

[0003] Therefore, it is necessary to design an adjustment structure for the lower circular knife spindle of the slitting and winding machine to lift the lower circular knife spindle and increase the working stability of the lower circular knife spindle. Utility Model Content

[0004] The purpose of the utility model is to provide a supporting foot and a positioning sleeve to effectively lift and adjust the lower circular knife spindle so that it can maintain uniform force during operation, thereby improving the slitting quality and reducing the occurrence of product degradation, thereby solving the technical problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustment structure for the top cutting lower circular knife spindle of a slitting and winding machine, wherein the adjustment structure has multiple adjustment structures, and a single adjustment structure includes: a square tube tie bar of the slitting and winding machine, a support foot and a positioning sleeve;

[0006] The slitting and winding machine is provided with a slitting and winding machine square tube tie bar, which is arranged parallel to the lower part of the top cutting circular knife main shaft;

[0007] The lower end of the positioning sleeve is fixedly connected to the square tube tie bar of the slitting and winding machine; the upper part of the positioning sleeve is provided with a vertical oblong hole;

[0008] The support foot is detachably connected to the positioning sleeve; two rolling bearings arranged side by side are provided on the support foot, and the two rolling bearings jointly support the top cutting circular knife main shaft.

[0009] Furthermore, the upper portion of the support foot is a concave groove structure, and two through holes are provided on the side wall of the concave groove structure for mounting rollers of two rolling bearings; the two rolling bearings are located in the middle of the concave groove structure and are arranged at the same height;

[0010] A transverse oblong hole is provided in the middle of the supporting foot, and the transverse oblong hole in the middle of the supporting foot is used in conjunction with the vertical oblong hole on the positioning sleeve, and the supporting foot and the positioning sleeve are connected together by bolts.

[0011] Furthermore, the two rolling bearings are respectively mounted on two rollers; the two rollers are inserted into the concave groove structure;

[0012] A threaded rod through hole is formed on the left side wall of the concave groove structure; an axial hole is formed on the right side wall of the corresponding concave groove structure; the threaded rod through hole and the axial hole are concentrically arranged, and the inner diameter of the threaded rod through hole is smaller than the inner diameter of the axial hole;

[0013] The roller is a small shaft with a threaded rod; the roller comprises a threaded portion, a shaft portion and a pillow block portion from left to right;

[0014] The roller passes through the shaft hole and the threaded rod through hole on the concave groove structure in sequence; the threaded part is arranged in the threaded rod through hole, the shaft part is located between the two side walls of the concave groove structure, and the shaft part is connected to the bearing for supporting the bearing; the left end of the pillow block part is arranged in the shaft hole, the diameter of the right end of the pillow block part is larger than the inner diameter of the shaft hole, and the right end of the pillow block part is pressed on the outer surface of the shaft hole.

[0015] Furthermore, two vertical adjustment threaded holes are provided at the lower part of the support foot, and two corresponding adjustment bolts can be screwed into the two adjustment threaded holes, and the nuts of the two adjustment bolts are downwardly abutted against the upper surface of the square tube tie bar of the slitting and winding machine.

[0016] Furthermore, it also includes a cover plate; three mounting holes are provided on each side of the cover plate in the length direction, and two cover plate fastening threaded holes are provided in the middle of the cover plate; the lower end of the corresponding positioning sleeve is a groove-shaped structure, and six groove-shaped structure bottom threaded holes are provided at the bottom of the groove-shaped structure near the cover plate.

[0017] Beneficial effects

[0018] The utility model effectively supports and adjusts the lower circular knife main shaft by supporting the support feet and the positioning sleeve, so that the main shaft can maintain uniform force during operation, solves the problem of continuous knife cutting during cutting due to uneven force, and thus improves the cutting quality.

[0019] The lower end of the adjustment structure of this utility model is fixed to the square tube tie rod of the slitter and winder, and the upper end supports the lower circular blade spindle through a rolling bearing, which increases the stability of the lower circular blade spindle during operation. This stable structure can reduce vibration and shaking during operation of the equipment, extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 This is a structural diagram of a positioning sleeve of an adjustment structure disclosed in the utility model;

[0022] Figure 2 This is a bottom view of the positioning sleeve of the adjustment structure disclosed in the utility model;

[0023] Figure 3 This is a structural diagram of the cover plate of the adjustment structure disclosed in the utility model;

[0024] Figure 4 This is a structural diagram of the support legs of the adjustment structure disclosed in the utility model;

[0025] Figure 5 This is a cross-sectional view of the support leg of the adjustment structure disclosed in the utility model;

[0026] Figure 6 This is a structural diagram of the roller of the adjustment structure disclosed in the utility model;

[0027] Figure 7 It is a front view and a left view of the assembly diagram of the support leg and the positioning sleeve of the adjustment structure disclosed in the utility model;

[0028] Figure 8 This is a diagram showing the positions of the support legs and positioning sleeves of the adjustment structure disclosed in the utility model on the slitting and winding machine;

[0029] Figure 9 yes Figure 8 Left view of .

[0030] In the picture:

[0031] 1. Positioning sleeve, 2. Long circular hole in vertical direction, 3. Threaded hole at the bottom of the groove structure, 4. Cover plate, 5. Threaded hole for fastening the cover plate, 6. Support foot, 7. Adjustment threaded hole, 8. Shaft hole, 9. Through hole for threaded rod, 10. Concave groove structure, 11. Roller, 12. Square tube tensioning bar of slitting and rewinding machine, 13. Spindle of lower circular knife, 14. Lower circular knife of slitting and rewinding machine, 15. Upper circular knife of slitting and rewinding machine, 16. Cylinder for upper circular knife, 17. Adjustment structure, 18. Rolling bearing. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] In order to achieve the above purpose, the present invention provides the following technical solutions: Figure 1-9 As shown, an adjustment structure 17 of the top cutting lower circular knife spindle 13 of a slitting and winding machine, the adjustment structure 17 has multiple, and a single adjustment structure 17 includes: a support foot 6 and a positioning sleeve 1;

[0034] The square tube tie rod 12 of the slitting and winding machine is fixed on the slitting and winding machine and is arranged parallel to 295 mm below the top cutting lower circular knife main shaft 13; the square tube tie rod 12 of the slitting and winding machine plays a role of basic support and positioning; it provides a stable installation foundation for the entire adjustment structure 17.

[0035] The positioning sleeve 1 is fixed on the square tube tie rod 12 of the slitting and winding machine, and a vertical oblong hole 2 is opened on the upper part of the positioning sleeve 1;

[0036] The supporting foot 6 is fixed on the positioning sleeve 1; two rolling bearings 18 arranged side by side are provided on the supporting foot 6, and the two rolling bearings 18 jointly support the top cutting lower circular knife spindle 13; the rolling bearings 18 can reduce the friction of the lower circular knife spindle 13 during the rotation process, so that the lower circular knife spindle 13 rotates more smoothly, and at the same time can evenly share the weight of the lower circular knife spindle 13, avoiding the problem of continuous cutting due to uneven force.

[0037] The support foot 6 and the positioning sleeve 1 are connected together by bolts passing through the vertical oblong holes 2 on the upper part of the support foot 6 and the positioning sleeve 1 in sequence and fastened with nuts. Due to the setting of the vertical oblong holes 2, the height can be adjusted in the vertical direction, thereby changing the height of the adjustment structure 17.

[0038] Furthermore, the upper part of the support foot 6 is a concave groove structure 10, and two through holes are provided on the side wall of the concave groove structure 10 for installing rollers 11 of two rolling bearings 18; the two rolling bearings 18 are located in the middle position of the concave groove structure 10 and the two rolling bearings 18 are set at the same height; this structural design can ensure that the rolling bearings 18 provide stable support to the lower circular knife spindle 13.

[0039] A transverse oblong hole is provided in the middle of the supporting foot 6. The transverse oblong hole in the middle of the supporting foot 6 is used in conjunction with the vertical oblong hole 2 on the positioning sleeve 1. The supporting foot 6 and the positioning sleeve 1 are connected together by bolts; and the position of the supporting foot 6 relative to the positioning sleeve 1 can be adjusted within a certain range, thereby realizing the adjustment of the height of the lower circular knife spindle 13.

[0040] Furthermore, two rolling bearings 18 are respectively mounted on the two rollers 11; the two rollers 11 are passed through the concave groove structure 10;

[0041] A threaded rod through hole 9 is formed on the left side wall of the concave groove structure 10; an axial hole 8 is formed on the corresponding right side wall of the concave groove structure 10; the threaded rod through hole 9 is concentrically arranged with the axial hole 8, and the inner diameter of the threaded rod through hole 9 is smaller than the inner diameter of the axial hole 8;

[0042] The roller 11 is a small shaft with a threaded rod; the roller 11 comprises a threaded portion, a shaft portion, and a pillow block portion from left to right;

[0043] The roller 11 passes through the axial hole 8 and the threaded rod through hole 9 on the concave groove structure 10 in sequence; the threaded part is inserted into the threaded rod through hole 9, and the left side of the threaded part can be fastened by a nut; the position of the shaft part is located between the two side walls of the concave groove structure 10, and the shaft part is connected to the bearing for supporting the bearing; the left end of the pillow block part is inserted into the axial hole 8, the diameter of the right end of the pillow block part is larger than the inner diameter of the axial hole 8, and the right end of the pillow block part is pressed on the outer surface of the axial hole 8.

[0044] When in use, the roller 11 passes through the shaft hole 8, the bearing and the threaded rod through hole 9 on the concave groove structure 10 in sequence; the roller 11 is fixed to the concave groove structure 10 by tightening the nut on the threaded part of the roller 11.

[0045] Furthermore, two vertical adjustment threaded holes 7 are provided at the lower part of the support foot 6, and the corresponding two adjusting bolts can be screwed into the two adjusting threaded holes 7. When in use, the upper parts of the two adjusting bolts are screwed into the two adjusting threaded holes 7, and the nuts of the two adjusting bolts are downwardly abutted against the upper surface of the square tube tie bar 12 of the slitting and winding machine; the height of the support foot 6 relative to the square tube tie bar 12 of the slitting and winding machine can be adjusted by adjusting the screw-in depth of the two adjusting bolts; after the position of the support foot 6 relative to the positioning sleeve 1 is adjusted, the support foot 6 and the positioning sleeve 1 can be fixed together by passing the bolt through the horizontal oblong hole of the support foot 6 and the vertical oblong hole 2 on the positioning sleeve 1.

[0046] Furthermore, it also includes a cover plate 4; the cover plate 4 is a plate-like structure, and three mounting holes are provided on both sides of the cover plate 4 in the length direction, and two cover plate fastening threaded holes 5 are provided in the middle of the cover plate 4; the lower end of the corresponding positioning sleeve 1 is a groove-type structure, and six groove-type structure bottom threaded holes 3 are provided at the bottom of the groove-type structure near the cover plate 4; the cover plate 4 plays a role in fixing the position of the positioning sleeve 1, ensuring that the positioning sleeve 1 will not move arbitrarily on the square tube tie rod 12 of the slitting and winding machine, thereby ensuring the stability of the adjustment structure 17.

[0047] When in use, the groove structure at the lower end of the positioning sleeve 1 is put on the square tube tie bar 12 of the slitting and winding machine, and the cover plate 4 is fixed to the lower end of the positioning sleeve 1 with six cylindrical head hexagonal screws. It should be noted that the depth of the groove structure at the lower end of the positioning sleeve 1 is greater than the external dimension of the square tube tie bar 12 of the slitting and winding machine. At this time, the positioning sleeve 1 can be adjusted along the direction of the square tube tie bar 12 of the slitting and winding machine. After adjusting the positioning sleeve 1 according to the position of the lower circular knife 14 of the slitting and winding machine, use two hexagonal head screws to screw into the two cover plate fastening threaded holes 5 set in the middle of the cover plate 4, thereby locking the positioning sleeve 1 and the square tube tie bar 12 of the slitting and winding machine.

[0048] Figure 8 and Figure 9 The figure shows the positions of the support legs 6 and the positioning sleeve 1 of the present invention on the slitting and winding machine;

[0049] The lower circular knife spindle 13 is rotatably fixed on the slitting and winding machine; the slitting and winding machine has four lower circular knives 14, which are fixed on the lower circular knife spindle 13 at equal intervals;

[0050] The lower end of the adjustment structure 17 is fixed to the square tube tie bar 12 of the slitting and winding machine; the upper end of the adjustment structure 17 is provided with two rolling bearings 18, which rotatably support the lower circular knife spindle 13, providing support for the lower circular knife spindle 13, thereby increasing the stability of the lower circular knife spindle 13 during operation;

[0051] The upper circular knife 15 of the slitting and winding machine is rotatably mounted on the output end of the upper circular knife cylinder 16; when in use, the upper circular knife cylinder 16 drives the upper circular knife 15 of the slitting and winding machine to move downward and cooperate with the lower circular knife 14 of the slitting and winding machine to perform slitting work.

[0052] The working principle and process are as follows:

[0053] First, loosen the bolts connecting the support foot 6 and the positioning sleeve 1. At this time, you can adjust the adjusting bolts in the two adjusting threaded holes 7 at the bottom of the support foot 6. By screwing in or out the adjusting bolts, change the height of the support foot 6 relative to the square tube tie bar 12 of the slitting and winding machine, so that the bearing on the upper part of the adjustment mechanism lifts the lower circular knife spindle 13; after adjusting the position of the support foot 6 relative to the positioning sleeve 1, you can fix the support foot 6 and the positioning sleeve 1 together by passing the bolts through the horizontal oblong hole of the support foot 6 and the vertical oblong hole 2 on the positioning sleeve 1; thus completing the adjustment work.

[0054] Two rolling bearings 18 are mounted within the concave groove structure 10 supporting the support foot 6 and secured to the concave groove structure 10 via rollers 11. When the slitter-winder is operating, the lower circular blade spindle 13 rotates above the two rolling bearings 18. These two rolling bearings 18 evenly distribute the weight of the lower circular blade spindle 13, ensuring smooth rotation and minimizing vibration and shaking during operation, thereby ensuring smooth slitting.

[0055] The adjustment structure 17 of the present application can effectively solve the problems of uneven force and sagging of the circular knife spindle 13 of the slitting and winding machine under wide width conditions, thereby improving product quality and the stability and adaptability of the equipment.

[0056] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. An adjustment structure for the top cutting lower circular knife spindle of a slitting and winding machine, characterized in that: There are multiple adjustment structures (17), and a single adjustment structure (17) includes: a support foot (6) and a positioning sleeve (1); The slitting and winding machine is provided with a slitting and winding machine square tube lacing rib (12), and the slitting and winding machine square tube lacing rib (12) is arranged parallel to the lower side of the top cutting circular knife main shaft (13); The lower end of the positioning sleeve (1) is fixedly connected to the square tube tie bar (12) of the slitting and winding machine; the upper part of the positioning sleeve (1) is provided with a vertical oblong hole (2); The support foot (6) is detachably connected to the positioning sleeve (1); two rolling bearings (18) arranged side by side are provided on the support foot (6), and the two rolling bearings (18) jointly support the top cutting lower circular knife main shaft (13).

2. The adjustment structure of the top cutting lower circular knife spindle of the slitting and winding machine according to claim 1 is characterized in that: The upper portion of the support foot (6) is a concave groove structure (10), and two through holes are provided on the side wall of the concave groove structure (10) for mounting rollers (11) of two rolling bearings (18); the two rolling bearings (18) are located in the middle of the concave groove structure (10) and the two rolling bearings (18) are arranged at the same height; A transverse oblong hole is provided in the middle of the support leg (6), and the transverse oblong hole in the middle of the support leg (6) is used in conjunction with the vertical oblong hole (2) on the positioning sleeve (1), and the support leg (6) and the positioning sleeve (1) are connected together by bolts.

3. The adjustment structure of the top cutting lower circular knife spindle of the slitting and winding machine according to claim 2 is characterized in that: The two rolling bearings (18) are respectively mounted on the two rollers (11); the two rollers (11) are inserted into the concave groove structure (10); A threaded rod through hole (9) is provided on the side wall on the left side of the concave groove structure (10); a shaft hole (8) is provided on the side wall on the right side of the concave groove structure (10); the threaded rod through hole (9) and the shaft hole (8) are concentrically arranged, and the inner diameter of the threaded rod through hole (9) is smaller than the inner diameter of the shaft hole (8); The roller (11) is a small shaft with a threaded rod; the roller (11) comprises a threaded portion, a shaft portion and a pillow block portion from left to right; The roller (11) passes through the shaft hole (8) and the threaded rod through hole (9) on the concave groove structure (10) in sequence; wherein the threaded portion is arranged in the threaded rod through hole (9), the shaft portion is located between the two side walls of the concave groove structure (10), and the shaft portion is connected to the bearing for supporting the bearing; the left end of the pillow block portion is arranged in the shaft hole (8), the diameter of the right end of the pillow block portion is larger than the inner diameter of the shaft hole (8), and the right end of the pillow block portion is pressed on the outer surface of the shaft hole (8).

4. The adjustment structure of the top cutting lower circular knife spindle of the slitting and winding machine according to claim 1 is characterized in that: The lower part of the support foot (6) is provided with two vertical adjustment threaded holes (7), and the corresponding two adjustment bolts can be screwed into the two adjustment threaded holes (7), and the nuts of the two adjustment bolts are downwardly abutted against the upper surface of the square tube tie bar (12) of the slitting and winding machine.

5. The adjustment structure of the top cutting lower circular knife spindle of the slitting and winding machine according to claim 1 is characterized in that: It also includes a cover plate (4); three mounting holes are respectively provided on both sides of the cover plate (4) in the longitudinal direction, and two cover plate fastening threaded holes (5) are provided in the middle of the cover plate (4); the lower end of the corresponding positioning sleeve (1) is a groove-shaped structure, and six groove-shaped bottom threads (3) are provided at the bottom of the groove-shaped structure near the cover plate (4).

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