Non-woven fabric slitting and rewinding machine

Abstract

The utility model relates to the technical field of non-woven fabric processing, in particular to a non-woven fabric slitting and rewinding machine which is simple in structure, capable of quickly disassembling and assembling a slitting cutter shaft, and capable of greatly shortening downtime and reducing non-production time when a cutter needs to be replaced or maintained, thereby improving the overall utilization rate and production efficiency of equipment. Comprising a slitting cutter shaft and two bearing seats. The middle of the bearing seat is rotationally connected with a rotating shaft; the end part of the slitting cutter shaft is fixedly connected with an insertion block, the rotating shaft is provided with a notch for the insertion block to be inserted in a sliding manner, the device further comprises a locking mechanism arranged on the rotating shaft, the locking mechanism is used for locking the insertion block and the rotating shaft, and the locking mechanism can be automatically triggered to lock the insertion block in the process that the insertion block is inserted into the notch.

Description

Technical Field

[0001] The utility model relates to the technical field of non-woven fabric processing, in particular to a non-woven fabric slitting and rewinding machine. Background Art

[0002] The non-woven fabric slitting and rewinding machine is a mechanical equipment specially used in the non-woven fabric processing industry. Its main function is to accurately slit non-woven fabric materials with large roll diameters and rewind them into products with small roll diameters and different width specifications. The non-woven fabric slitting and rewinding machine is an indispensable and important equipment in the subsequent deep processing of non-woven fabrics. For the non-woven fabric products industry, it helps to improve production efficiency, reduce scrap rate, and meet the needs of products of different specifications.

[0003] In the existing slitting and rewinding machines, the slitting knife shaft and the slitting knife are installed on the side panels on both sides of the frame through bearings. Although this design is stable and easy to use in daily life, it does have the following inconveniences when replacing the slitting knife or maintaining the bearings: When replacing the slitting knife, it is often necessary to remove the bearing end cover, locking nut or other fixings that fix the knife shaft before the knife shaft can be pulled out. This process involves multiple steps, which is not only time-consuming, but also has high technical requirements for the operator. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a non-woven fabric slitting and rewinding machine, which has a simple structure and can quickly disassemble and assemble the slitting knife shaft. When the knife needs to be replaced or maintained, it can greatly shorten the downtime and reduce the non-production time, thereby improving the overall utilization and production efficiency of the equipment.

[0005] The utility model of a non-woven fabric slitting and rewinding machine comprises a slitting blade shaft and two bearing seats; the middle part of the bearing seat is rotatably connected with a rotating shaft;

[0006] The end of the slitting knife shaft is fixedly connected with an insert block, and the rotating shaft is provided with a notch for sliding the insert block into. The rotating shaft also includes a locking mechanism arranged on the rotating shaft, and the locking mechanism is used to lock the insert block and the rotating shaft. When the insert block is inserted into the notch, the locking mechanism can automatically trigger to lock the insert block.

[0007] As a preferred solution of the utility model, the locking mechanism includes a groove formed on the side of the plug block and a fixed block elastically slidably connected to the rotating shaft;

[0008] The fixing block is provided with an inclined surface at one end facing the inserting block, and the inclined surface portion is located in the notch.

[0009] As a preferred solution of the utility model, a through hole is opened on the side of the rotating shaft, the fixing block is slidably connected to the inner wall of the through hole, the through hole is directly opposite to the groove, and an end plate is arranged at one end of the through hole away from the groove;

[0010] The locking mechanism also includes a connecting rod fixedly connected to the fixed block, one end of the connecting rod passes through the end plate, and a fixing ring is arranged at this end. The connecting rod is sleeved with a spring, and the two ends of the spring are in close contact with the fixed block and the end plate respectively. Under the action of the spring elastic force, the fixing ring is in contact with the end plate.

[0011] As a preferred solution of the utility model, the locking mechanism further includes an unlocking mechanism, and the unlocking mechanism is used to move the fixed block;

[0012] The unlocking mechanism includes a connecting ring arranged at the end of the connecting rod, a power rod rotatably connected to the end plate, one end of the power rod is slidably connected to the connecting ring, the power rod is tilted, and the end of the power rod slidably connected to the connecting ring faces the rotating shaft.

[0013] As a preferred solution of the utility model, the unlocking mechanism also includes a counterweight member arranged at the other end of the power rod.

[0014] As a preferred solution of the utility model, the top end of the notch and the bottom end of the insert block are both chamfered.

[0015] As a preferred solution of the utility model, the counterweight is connected to the power rod by threads.

[0016] As a preferred solution of the utility model, a power shaft is provided at one end of the power rod, the connecting ring has a long hole, and the power shaft passes through the long hole.

[0017] As a preferred solution of the utility model, the counterweight is cylindrical.

[0018] As a preferred solution of the utility model, the middle portion of the power rod is rotatably connected to the end plate via a pin shaft.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows: when installing the slitting knife shaft, hold the two ends of the slitting knife shaft with both hands and insert the plug into the notch, the locking mechanism can be automatically triggered to lock the rotating shaft and the plug, and through the structure of the locking mechanism, the plug and the notch, the slitting knife shaft can be easily and quickly docked and separated from the rotating shaft without the need for complicated tools and steps, which significantly improves the speed and convenience of replacing the knife shaft, reduces downtime for maintenance, and thus improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 yes Figure 1 A partial enlarged view of the middle A part;

[0022] Figure 3It is a cross-sectional view of the utility model;

[0023] Figure 4 yes Figure 3 A partial enlarged view of the middle B part;

[0024] Figure 5 It is a structural schematic diagram of the bearing seat, the locking mechanism and the unlocking structure;

[0025] Figure 6 yes Figure 5 A partial enlarged view of the middle C part;

[0026] Markings in the attached drawings: 1. slitting knife shaft; 2. bearing seat; 3. rotating shaft; 4. insert block; 5. notch; 6. groove; 7. fixing block; 8. inclined surface; 9. through hole; 10. end plate; 11. connecting rod; 13. fixing ring; 14. spring; 15. connecting ring; 16. power rod; 17. counterweight; 18. power shaft; 19. pin. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, 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 in conjunction with the accompanying drawings.

[0028] 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 embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example

[0031] Reference Figure 1-Figure 6 This embodiment provides a nonwoven fabric slitting and rewinding machine, including a slitting blade shaft 1 and two bearing seats 2; a rotating shaft 3 is rotatably connected to the middle of the bearing seat 2, and the rotating shaft 3 is connected to the bearing seat 2 in a conventional connection manner;

[0032] The end of the slitting blade shaft 1 is fixedly connected to an insert block 4, which is in the shape of a rectangular parallelepiped or a cube. In this embodiment, Figure 1As shown, the insert block 4 is in the shape of a rectangular parallelepiped, and the rotating shaft 3 is provided with a notch 5 for the insert block 4 to slide into, and also includes a locking mechanism arranged on the rotating shaft 3. When the insert block 4 is inserted into the notch 5, the rotating shaft 3 can drive the slitting blade shaft 1 to rotate when rotating; the locking mechanism is used to lock the insert block 4 and the rotating shaft 3. When the insert block 4 is inserted into the notch 5, the locking mechanism can automatically trigger to lock the insert block 4;

[0033] When in use, when installing the slitting knife shaft 1, hold the two ends of the slitting knife shaft 1 with both hands and insert the plug 4 into the notch 5. The locking mechanism can be automatically triggered to lock the rotating shaft 3 and the plug 4. Through the structure of the locking mechanism, the plug 4 and the notch 5, the slitting knife shaft 1 can be easily and quickly docked and separated from the rotating shaft 3 without the need for complicated tools and steps, which significantly improves the speed and convenience of knife shaft replacement, reduces downtime for maintenance, and thus improves production efficiency.

[0034] As a preferred embodiment of the present invention, refer to Figure 4-Figure 6 The locking mechanism includes a groove 6 formed on the side of the insert block 4 and a fixing block 7 elastically slidably connected to the rotating shaft 3;

[0035] The fixing block 7 is provided with an inclined surface 8 at one end facing the inserting block 4, and a portion of the inclined surface 8 is located in the notch 5;

[0036] When in use, during the process of inserting the plug 4 into the notch 5, since the inclined surface 8 is partially located in the notch 5 and in contact with the plug 4, the fixed block 7 is squeezed during the process of inserting the plug 4 into the notch 5, causing the fixed block 7 to move outward relative to the rotating shaft 3. When the plug 4 contacts the inner bottom wall of the notch 5, under the action of elastic force, the end of the fixed block 7 with the inclined surface 8 is inserted into the groove 6, and at this time, the inner bottom wall of the groove 6 contacts the bottom surface of the fixed block 7, and both are flat. When the slitting knife shaft 1 tends to separate from the rotating shaft 3, the force acting on the fixed block 7 can be offset, so that the plug 4 cannot be separated from the notch 5, thereby achieving an automatic locking effect.

[0037] As a preferred embodiment of the present invention, refer to Figure 4-Figure 6 A through hole 9 is provided on the side of the rotating shaft 3, and the fixing block 7 is slidably connected to the inner wall of the through hole 9. The through hole 9 is directly opposite to the groove 6. An end plate 10 is provided at one end of the through hole 9 away from the groove 6. The end plate 10 is fixedly connected to the rotating shaft 3 by screws;

[0038] The locking mechanism also includes a connecting rod 11 fixedly connected to the fixing block 7. One end of the connecting rod 11 passes through the end plate 10, and a fixing ring 13 is arranged at this end. The connecting rod 11 is sleeved with a spring 14. The two ends of the spring 14 are in close contact with the fixing block 7 and the end plate 10 respectively. Under the elastic force of the spring 14, the fixing ring 13 is in contact with the end plate 10.

[0039] When in use, when the insert block 4 squeezes the inclined surface 8, the fixed block 7, the connecting rod 11 and the fixing ring 13 all move outward relative to the rotating shaft 3, and the spring 14 is further compressed. When the insert block 4 contacts the inner bottom wall of the notch 5, under the elastic force of the spring 14, the fixed block 7, the connecting rod 11 and the fixing ring 13 move inward relative to the rotating shaft 3 until the fixing ring 13 contacts the end plate 10 and stops.

[0040] As a preferred embodiment of the present invention, refer to Figure 2 , Figure 4 and Figure 6 , the locking mechanism also includes an unlocking mechanism, and the unlocking mechanism is used to move the fixed block 7;

[0041] The unlocking mechanism includes a connecting ring 15 arranged at the end of the connecting rod 11, the connecting ring 15 is fixedly connected to the end of the connecting rod 11 away from the fixed block 7, a power rod 16 rotatably connected to the end plate 10, and the middle part of the power rod 16 is rotatably connected to the end plate 10 through a pin 19; one end of the power rod 16 is slidably connected to the connecting ring 15, and further, one end of the power rod 16 is provided with a power shaft 18, the connecting ring 15 has a long hole, and the power shaft 18 passes through the long hole; the power rod 16 is tilted, and the end of the power rod 16 that is slidably connected to the connecting ring 15 faces the rotating shaft 3; the unlocking mechanism also includes a counterweight 17 arranged at the other end of the power rod 16, and the counterweight 17 is threadedly connected to the power rod 16, so as to facilitate the disassembly and assembly of the counterweight 17, and for comfort, the cross section of the counterweight 17 is set to be circular;

[0042] When it is necessary to remove the slitting blade shaft 1, press the counterweight 17, so that the counterweight 17, the power rod 16 and the power shaft 18 rotate clockwise with the pin 19 as the axis. Since the power shaft 18 passes through the long hole of the connecting ring 15, it can drive the fixing block 7, the connecting rod 11 and the fixing ring 13 to move outward relative to the rotating shaft 3. After the fixing block 7 is separated from the groove 6, the slitting blade shaft 1 can be moved upward;

[0043] When the inserting block 4 is inserted into the notch 5, the unlocking mechanism takes an adaptive action, which will not affect the movement of the fixing block 7;

[0044] During the slitting process, the rotating shaft 3 and the slitting blade shaft 1 rotate, and each component is subjected to the centrifugal force. The fixed block 7 also tends to move out of the groove 6. However, due to the setting of the counterweight 17, the weight of the counterweight 17 is large and the centrifugal force it is subjected to is large, so that the power rod 16 close to the end of the connecting rod 11 can generate pressure on the locking block, etc., to prevent the fixed block 7 from undergoing centrifugal movement.

[0045] As a preferred solution of the utility model, the top of the notch 5 and the bottom of the insert block 4 are chamfered. The chamfer design makes it easier to align and insert the insert block 4 into the notch 5, reduces the difficulty of assembly, improves assembly efficiency, and reduces the labor intensity of workers.

[0046] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A nonwoven fabric slitting and rewinding machine, comprising a slitting blade shaft (1) and two bearing seats (2); characterized in that: A rotating shaft (3) is rotatably connected to the middle of the bearing seat (2); The end of the slitting blade shaft (1) is fixedly connected with an insert block (4); the rotating shaft (3) is provided with a notch (5) for the insert block (4) to be slidably inserted into, and further comprises a locking mechanism arranged on the rotating shaft (3); the locking mechanism is used to lock the insert block (4) and the rotating shaft (3); when the insert block (4) is inserted into the notch (5), the locking mechanism can be automatically triggered to lock the insert block (4).

2. The nonwoven fabric slitting and rewinding machine according to claim 1, characterized in that: The locking mechanism comprises a groove (6) formed on the side of the insert block (4) and a fixed block (7) elastically slidably connected to the rotating shaft (3); The fixing block (7) is provided with an inclined surface (8) at one end facing the inserting block (4), and a portion of the inclined surface (8) is located in the notch (5).

3. The nonwoven fabric slitting and rewinding machine according to claim 2, characterized in that: A through hole (9) is provided on the side of the rotating shaft (3); the fixing block (7) is slidably connected to the inner wall of the through hole (9); the through hole (9) faces the groove (6); and an end plate (10) is provided at one end of the through hole (9) away from the groove (6); The locking mechanism also includes a connecting rod (11) fixedly connected to the fixing block (7), one end of the connecting rod (11) passes through the end plate (10), and a fixing ring (13) is arranged at this end, the connecting rod (11) is sleeved with a spring (14), and the two ends of the spring (14) are respectively in close contact with the fixing block (7) and the end plate (10), and under the elastic force of the spring (14), the fixing ring (13) is in contact with the end plate (10).

4. The nonwoven fabric slitting and rewinding machine according to claim 3, characterized in that: The locking mechanism also includes an unlocking mechanism, which is used to move the fixed block (7); The unlocking mechanism comprises a connecting ring (15) arranged at the end of the connecting rod (11), a power rod (16) rotatably connected to the end plate (10), one end of the power rod (16) being slidably connected to the connecting ring (15), the power rod (16) being inclined, and one end of the power rod (16) being slidably connected to the connecting ring (15) facing the rotating shaft (3).

5. The nonwoven fabric slitting and rewinding machine according to claim 4, characterized in that: The unlocking mechanism further comprises a counterweight (17) arranged at the other end of the power rod (16).

6. The nonwoven fabric slitting and rewinding machine according to claim 1, characterized in that: The top end of the notch (5) and the bottom end of the insert block (4) are both chamfered.

7. The nonwoven fabric slitting and rewinding machine according to claim 5, characterized in that: The counterweight (17) is connected to the power rod (16) by threaded connection.

8. The nonwoven fabric slitting and rewinding machine according to claim 4, characterized in that: A power shaft (18) is provided at one end of the power rod (16), the connecting ring (15) has a long hole, and the power shaft (18) passes through the long hole.

9. The nonwoven fabric slitting and rewinding machine according to claim 7, characterized in that: The counterweight (17) is cylindrical.

10. The nonwoven fabric slitting and rewinding machine according to claim 4, characterized in that: The middle part of the power rod (16) is rotatably connected to the end plate (10) via a pin shaft (19).

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