Splitting machine convenient for cutter maintenance

Abstract

A splitting machine convenient for cutter maintenance comprises a cutter shaft, a cutter holder arranged on the cutter shaft and a cutter structure arranged on the cutter holder, the cutter structure comprises a first blade and a second blade, and the cutter holder is mounted on the cutter shaft through a mounting mechanism, and is characterized in that a locking mechanism for locking the cutter structure is arranged on the cutter holder; the locking mechanism is provided with a stop pin, the stop pin penetrates through the cutter holder, the stop pin limits the position of the cutter by stretching into the cutter structure, and the effect that the blade can be detached and replaced without detaching the cutter shaft is achieved by pulling out and inserting the stop pin.

Description

Technical Field

[0001] The utility model relates to the technical field of slitting machines, and specifically relates to a slitting machine that is convenient for tool maintenance. Background Technique

[0002] The cutting tool structure of the existing slitting machine mostly adopts a closed circular ring structure. Therefore, when subsequent maintenance is required due to wear of the cutting tool of the existing slitting machine, the staff needs to disassemble the entire tool shaft to remove the cutting tool.

[0003] The disassembly process is cumbersome and the tool shaft itself is too heavy, requiring multiple operators to assist in the disassembly.

[0004] A cutting tool structure device of a slitting machine disclosed in Chinese Patent CN206690172U has a tool shaft that is driven by a power source to rotate around its own axis on a frame. A cutting tool structure is provided on the outer wall of the circumferential direction of the tool shaft. The frame includes a first side plate and a second side plate. A rotating seat is provided on the second side plate. One end of the tool shaft is hinged to the first side plate, and the other end is movably matched with the rotating seat. The tool shaft includes a first position where one end is arranged in the rotating seat and a second position where one end leaves the rotating seat after rotation for disassembling and replacing the cutting tool structure. When the cutting tool structure needs to be disassembled and replaced, rotate the tool shaft, and then take out the cutting tool structure from one end. The disassembly and maintenance are convenient, and the use effect is good.

[0005] The cutting tool structure replacement method in the document is to disassemble one end of the tool shaft and take out the cutting tool structure from the disassembly end. This method still has drawbacks. Disassembling and installing the tool shaft requires manual operation by the staff. Considering the weight of the tool shaft, multiple staff are required for disassembly and installation. At the same time, there is a safety hazard that the tool shaft slips out of the hand during disassembly by the staff. Summary of the Invention

[0006] Aiming at the above problems, a slitting machine that is convenient for tool maintenance is provided. Through the cooperation of a tool holder, a locking mechanism, an installation mechanism and a cutting tool structure, the cutting tool structure is quickly installed on the tool shaft, and the cutting tool structure can be disassembled and replaced without disassembling the tool shaft during disassembly.

[0007] A slitter that facilitates tool maintenance, in which a tool shaft driven by a power source to rotate around its own axis is provided on a frame, a cutting structure is provided on the outer wall of the tool shaft circumference. When the cutting tool structure needs to be disassembled and replaced, the tool shaft is rotated, and then the cutting tool structure is taken out from one end. The cutting structure of the slitter includes a tool holder, a locking mechanism, an installation mechanism, a cutting tool structure and a tool shaft. It is characterized in that the cutting tool structure includes a first cutting blade and a second cutting blade. On one side surface of the tool holder, a tool holder inner ring and a tool holder outer ring are provided. On the surface of the tool shaft, a first installation groove and a second installation groove are symmetrically provided respectively. The installation mechanism includes a first installation block, a first outer rubber coating, a first bolt, a second installation block, a second outer rubber coating and a second bolt. The locking mechanism includes a pin, a stop pin, a stop spring, a rotation switch, a first limit block, a second limit block and a third limit block.

[0008] Preferably, first outer rubber coatings and second outer rubber coatings of the same specification are respectively provided on the outer surfaces of the first installation block and the second installation block. First bolt holes and second bolt holes are respectively provided inside the first installation block and the second installation block. The first installation block and the second installation block are respectively arranged in the first installation groove and the second installation groove and are in clearance fit. The first bolt sequentially passes through the tool holder outer ring, the first cutting blade, the tool holder inner ring and the first installation block, and the first bolt hole is matched with the first bolt. The second bolt sequentially passes through the tool holder outer ring, the second cutting blade, the tool holder inner ring and the second installation block, and the second bolt hole is matched with the second bolt.

[0009] Preferably, the first cutting blade and the second cutting blade are arranged in the gap between the tool holder outer ring and the tool holder inner ring, and the first cutting blade and the second cutting blade are in clearance fit with the tool holder.

[0010] Preferably, a first limit block and a second limit block are respectively provided on both sides inside the side wall of the locking mechanism. A stop pin is provided below the first limit block and the second limit block. A spring is fitted on the outer surface of the lower cylindrical part of the stop pin. One end of the spring supports on the lower surface of the cavity of the locking mechanism, and the other end drives the stop pin to move upward.

[0011] Preferably, the third limit block is provided at the top of the locking mechanism. A pin is fixedly connected to the locking mechanism and penetrates through the side walls at both ends of the locking mechanism. A rotation switch is arranged in the cavity of the locking mechanism, and the pin penetrates through the rotation switch and is in clearance fit with it.

[0012] A stop bar is provided at the top of the rotation switch. When the rotation switch drives the stop bar to rotate, the rotation angle of the rotation switch is limited by the second limit block and the third limit block and cannot rotate more than 180°.

[0013] Preferably, the maximum rotation angle of the rotation switch is 90° - 180°.

[0014] Preferably, one side of the rotary switch is a cam structure, and the protruding part of the cam structure is away from the stop bar.

[0015] Preferably, pin holes for clearance fit with the stop pins are provided at the outer ring of the tool holder, the tops of the first blade and the second blade.

[0016] Preferably, rotate the stop bar until it fits with the surface of the third limit block, and the cam structure rotates to drive the stop pin to move downward and insert into the pin holes provided on the first blade and the second blade, thereby completing the fixation of the positions of the first blade and the second blade.

[0017] Preferably, rotate the stop bar until it fits with the surface of the second limit block, and the cam structure rotates to the side close to the first limit block. At the same time, the stop pin loses the restriction of the cam structure and is pushed upward by the spring to reset. At the same time, the stop pin moves upward and withdraws from the pin holes provided at the tops of the first blade and the second blade, thereby releasing the fixation of the positions of the first blade and the second blade.

[0018] In summary, the beneficial effects of the present utility model are as follows:

[0019] By adding a locking mechanism, the present utility model can complete the installation and disassembly of the cutter structure by displacing the stop pin in the mechanism, without the need to disassemble the tool shaft, and can complete the disassembly and replacement of the blade with one hand. While reducing the disassembly of the tool shaft by the staff, it avoids the danger of the staff dropping the hand when disassembling the tool shaft. Description of the Drawings

[0020] Figure 1 is the overall structural schematic diagram of the present utility model;

[0021] Figure 2 is the sectional structural schematic diagram of the overall structure of the present utility model;

[0022] Figure 3 is the partial schematic diagram of the sectional structure of the present utility model;

[0023] In the figure: 1, tool shaft; 111, first installation groove; 112, second installation groove; 2, cutter structure; 211, first blade; 212, second blade; 3, tool holder; 311, outer ring of tool holder; 312, inner ring of tool holder; 411, first installation block; 412, first outer rubber sheet; 413, first bolt; 414, first bolt hole; 421, second installation block; 422, second outer rubber sheet; 423, second bolt; 424, second bolt hole; 5, locking mechanism; 511, pin; 512, stop pin; 513, spring; 514, rotary switch; 5141, stop bar; 515, first limit block; 516, second limit block; 517, third limit block. Detailed Embodiments

[0024] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Although exemplary embodiments are disclosed in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present utility model and to fully convey the concept of the present utility model to those skilled in the art.

[0025] In the description of this specification, the descriptions referring to terms such as "certain embodiments", "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0026] In the present utility model, the terms "first", "second", "third" are only used for the purpose of description and cannot be understood as indicating or implying relative importance; the term "a plurality" means two or more, unless otherwise clearly defined. Terms such as "installation", "connection", "connection", "fixation" etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Please refer to Figures 1-3 , a slitter that facilitates tool maintenance, including a tool holder 3, a locking mechanism 5, an installation mechanism, a cutter structure 2 and a tool shaft 1, characterized in that the cutter structure 2 includes a first blade 211 and a second blade 212, a tool holder inner ring 312 and a tool holder outer ring 311 are provided on one side surface of the tool holder 3, and a first installation groove 111 and a second installation groove 112 are symmetrically provided on the surface of the tool shaft 1 respectively.

[0028] The installation mechanism includes a first installation block 411, a first outer rubber coating 412, a first bolt 413, a second installation block 421, a second outer rubber coating 422 and a second bolt 423.

[0029] The locking mechanism 5 includes a pin 511, a stop pin 512, a stop spring 513, a rotary switch 514, a first limiting block 515, a second limiting block 516 and a third limiting block 517.

[0030] Further, first outer rubber sheaths 412 and second outer rubber sheaths 422 of the same specification are respectively arranged on the outer surfaces of the first mounting block 411 and the second mounting block 421. First bolt holes 414 and second bolt holes 424 are respectively arranged inside the first mounting block 411 and the second mounting block 421. The first mounting block 411 and the second mounting block 421 are respectively arranged in a first mounting groove 111 and a second mounting groove 112 with a clearance fit. The first bolt 413 sequentially passes through the outer ring 311 of the tool holder, the first blade 211, the inner ring 312 of the tool holder and the first mounting block 411. The first bolt hole 414 cooperates with the first bolt 413. The second bolt 423 sequentially passes through the outer ring 311 of the tool holder, the second blade 212, the inner ring 312 of the tool holder and the second mounting block 421. The second bolt hole 424 cooperates with the second bolt 423.

[0031] Further, the first blade 211 and the second blade 212 are arranged in the clearance between the outer ring 311 and the inner ring 312 of the tool holder, and the first blade 211 and the second blade 212 have a clearance fit with the tool holder 3.

[0032] Further, the first limiting block 515 and the second limiting block 516 are respectively arranged on both sides inside the side wall of the locking mechanism 5. The stop pin 512 is arranged below the first limiting block 515 and the second limiting block 516. The outer surface of the lower cylindrical part of the stop pin 512 is fitted with a spring 513. One end of the spring 513 is supported on the lower surface inside the cavity of the locking mechanism 5, so that the spring 513 supports and drives the stop pin to move upward.

[0033] Further, the third limiting block 517 is arranged at the top of the locking mechanism 5. The locking mechanism 5 is fixedly connected with a pin 511, and the pin 511 penetrates through the side walls at both ends of the locking mechanism 5. A rotary switch 514 is arranged inside the cavity of the locking mechanism 5, and the pin 511 penetrates through the rotary switch 514 and has a clearance fit with it.

[0034] Further, a stop bar 5141 is arranged at the top of the rotary switch 514. When the rotary switch 514 drives the stop bar 5141 to rotate, the rotation angle of the rotary switch 514 is limited by the second limiting block 516 and the third limiting block 517 and cannot rotate more than 180°.

[0035] Further, the maximum rotation angle of the rotary switch is 90° - 180°.

[0036] Further, the rotation switch is a cam structure, and the protruding part of the cam structure is away from the stop bar 5141.

[0037] Further, pin holes for clearance fit with the stop pin 512 are provided at the tops of the outer ring 311 of the tool holder, the first blade 211, and the second blade 212.

[0038] Further, rotate the stop bar 5141 until it fits against the surface of the third limit block 517. The rotation of the cam structure drives the stop pin 512 to move downward and insert into the pin holes provided in the first blade 211 and the second blade 212, thereby completing the fixation of the positions of the first blade 211 and the second blade 212.

[0039] Further, rotate the stop bar 5141 until it fits against the surface of the second limit block 516. The cam structure rotates to the side close to the first limit block 515. At the same time, the stop pin 512 loses the restriction of the cam structure and is pushed upward to reset by the spring 513. At the same time, the stop pin 512 moves upward and withdraws from the pin holes provided at the tops of the first blade 211 and the second blade 212, thereby releasing the fixation of the positions of the first blade 211 and the second blade 212.

[0040] In this embodiment, a slitter for facilitating tool maintenance is used. The first mounting block 411, the second mounting block 421, and the tool holder 3 are installed on the tool shaft 1 according to the preset installation positions. The first bolt 413 sequentially passes through the outer ring 311 of the tool holder, the first blade 211, and the inner ring 312 of the tool holder and is bolted to the first mounting block 411. The second bolt 423 sequentially passes through the outer ring 311 of the tool holder, the second blade 212, and the inner ring 312 of the tool holder and is connected to the second mounting block 421. Affected by the tightening of the first bolt 413 and the second bolt 423, the first outer rubber coating 412 and the second outer rubber coating 422 are squeezed by the first mounting block 411 and the second mounting block 421 to complete the fixation of the tool holder 3 on the tool rail.

[0041] By rotating the stop bar 5141 to fit against the surface of the second limit block 516, the cam structure on the rotation switch 514 rotates to the side close to the first limit block 515. The stop pin 512 loses the restriction of the cam structure and resets. The stop pin 512 is driven by the spring 513 to be pulled out upward. Install the first blade 211 and the second blade 212 into the tool holder 3. Rotate the stop bar 5141 to fit against the surface of the third limit block 517. The cam structure on the rotation switch 514 rotates to drive the stop pin 512 to move downward and insert into the pin holes provided on the first blade 211 and the second blade 212, thereby completing the fixation of the positions of the first blade 211 and the second blade 212. Rotate the stop bar 5141 to fit against the surface of the second limit block 516. The cam structure on the rotation switch 514 rotates to the side close to the first limit block 515. At the same time, the stop pin 512 loses the restriction of the cam structure and is pushed by the spring 513 to reset upward. At the same time, the stop pin 512 moves upward and pulls out of the pin holes provided at the tops of the first blade 211 and the second blade 212, thereby releasing the fixation of the positions of the first blade 211 and the second blade 212. Pull out the first blade 211 and the second blade 212 to complete the disassembly of the cutter structure 2, and the replacement and maintenance of the cutter structure can be conveniently completed.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than being restrictive. Although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that any modification or equivalent replacement of the technical solutions of the present invention does not depart from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A slitting machine for convenient maintenance of a cutting tool, comprising a cutting shaft, a cutting seat (3) arranged on the cutting shaft, and a cutting knife structure (2) arranged on the cutting seat, wherein the cutting knife structure (2) comprises a first blade (211) and a second blade (212), and the cutting seat is installed on the cutting shaft through an installation mechanism, characterized in that: The knife seat (3) is provided with a locking mechanism (5) for locking the cutter structure (2); the locking mechanism (5) is provided with a stop pin (512); and the stop pin (512) passes through the knife seat and extends into the cutter structure (2).

2. A slitting machine that facilitates tool maintenance according to claim 1, characterized in that: The locking mechanism (5) comprises a rotary switch (514), and the rotary switch (514) is mounted on the locking mechanism (5) via a pin (511).

3. A slitting machine that facilitates tool maintenance according to claim 2, characterized in that A stop bar (5141) is provided on the rotary switch (514), and the stop bar (5141) extends out of the locking mechanism, and a third limit block (517) for limiting the stop bar is provided in the locking mechanism away from the knife seat (3); a first limit block (515) and a second limit block (516) for limiting the clamping plates on both sides of the stop pin (512) are provided in the locking mechanism (5) away from the third limit block (517).

4. A slitting machine that facilitates tool maintenance according to claim 3, characterized in that: The outer surface of the cylindrical portion at the lower end of the stop pin (512) is equipped with a spring (513), and the spring (513) is arranged at the bottom of the cavity of the locking mechanism (5). The other end of the spring (513) is in conflict with the stop pin (512) clamping plate. The stop pin (512) clamping plate is lifted by the spring (513), so that the upper surface of the stop pin (512) clamping plate contacts the lower surfaces of the first limit block (515) and the second limit block (516).

5. A slitting machine that facilitates tool maintenance according to claim 1, characterized in that: The outer surface of the knife shaft (1) is provided with a first mounting groove (111) and a second mounting groove (112) symmetrically with the knife shaft axis as a reference line.

6. A slitting machine that facilitates tool maintenance according to claim 1, characterized in that: The mounting mechanism comprises a first mounting block (411), a first outer rubber cover (412), a first bolt (413), a second mounting block (421), a second outer rubber cover (422) and a second bolt (423).

7. A slitting machine for convenient tool maintenance according to claim 6, characterized in that: The first mounting block (411) and the second mounting block (421) are fixedly connected with a first outer rubber (412) and a second outer rubber (422) on one side close to the knife seat (3); the first mounting block (411) and the second mounting block (421) are respectively provided with a first bolt hole (414) and a second bolt hole (424); the first mounting block (411) and the second mounting block (421) are respectively provided in a first mounting groove (111) and a second mounting groove (112); the first bolt (413) passes through the knife seat outer ring (311), the first blade (211), the knife seat inner ring (312) and the first mounting block (411) in sequence; the second bolt (423) passes through the knife seat outer ring (311), the second blade (212), the knife seat inner ring (312) and the second mounting block (421) in sequence.

8. A slitting machine that facilitates tool maintenance according to claim 1, characterized in that: The knife seat (3) is provided with a knife seat inner ring (312) and a knife seat outer ring (311), and the knife seat inner ring (312) and the knife seat outer ring (311) are provided with a gap for inserting the cutting knife structure.

Images