Knife changing frame structure of slitting machine

Abstract

The utility model discloses a tool rest replacing structure of a slitting machine. The tool rest replacing structure is used for replacing a blade on a tool rest on the slitting machine. Comprising a fixed base and a tool changing frame installed on the fixed base in a sliding mode, and the tool changing frame can be close to or away from a tool rest of the slitting machine along the fixed base; the tool changing frame comprises a lower support installed on the fixed base in a sliding mode, an upper support rotationally connected to the top end of the lower support and two sets of tool rest arms symmetrically arranged at the two ends of the upper support, and the tool rest arms are used for installing blades. The upper support can drive the tool rest arm to rotate in the direction perpendicular to the axial direction of the tool rest arm so that a blade on the slitting machine can be replaced, and a new blade can be installed in the blade. According to the tool rest assembly device, an old blade replaced from the tool rest of the slitting machine can be received, a new blade can be assembled to the tool rest of the slitting machine, the structure is simple, and operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of slitting machine especially, relates to a slitting machine tool rest structure of changing. BACKGROUND

[0002] Slitting machine is the production equipment that strips longitudinal cutting into several required specification strips, and its working principle is that strips pass through the upper and lower knife shaft gap of the tool rest through traction, and the upper and lower knife shaft rotates and drives the slitting blade installed on the knife shaft to cut the strips through the cooperation of the upper and lower cutting blades.

[0003] When the strips are cut, dust will be generated, therefore, after the slitting machine works for a period of time, the upper and lower blades will gather a lot of dust, thereby reducing the cutting precision of the blades and seriously affecting the cutting quality of the slitting machine, so the blades need to be replaced. CONTENT OF THE UTILITY MODEL

[0004] (I) technical problem to be solved

[0005] The utility model to be solved technical problem is to provide a slitting machine tool rest structure of changing, can undertake the old blade of the tool rest of slitting machine and assemble the new blade to the tool rest of slitting machine, simple structure, convenient operation.

[0006] (II) technical scheme

[0007] The utility model solves the scheme that the above technical problem adopts a kind of slitting machine tool rest structure of changing, for replacing the blade on the tool rest on slitting machine;Including fixed base and the tool rest of changing of sliding installation on the fixed base, the tool rest of changing can be close to or away from the tool rest of slitting machine along the fixed base;The tool rest of changing includes the lower support of sliding installation on the fixed base, the upper support of rotationally connected on the top of the lower support and the two groups of tool rest arms that are symmetrically arranged in the two ends of the upper support, the tool rest arm is used to install blade, and, the upper support can drive the tool rest arm rotates around the direction perpendicular to the axial direction of the tool rest arm, to replace the blade on slitting machine and install new blade.

[0008] Specifically, one end of the fixed base along its length direction is close to the knife holder of the slitting machine, and the other end is away from the knife holder of the slitting machine; the space between the two ends is the moving space of the knife holder changer; and the group of knife holder arms at the end close to the knife holder of the slitting machine are not equipped with blades for receiving old blades, and the group of knife holder arms at the end away from the knife holder of the slitting machine are equipped with new blades; when the knife holder changer moves along the length direction of the fixed base to the end close to the knife holder of the slitting machine, the knife holder changer is in the position of replacing old blades, and the old blades on the knife holder of the slitting machine can be directly pushed into the group of knife holder arms not equipped with blades; after the old blades are assembled to the knife holder arms, the upper support is operated to rotate 180°, the knife holder arms equipped with new blades are close to the knife holder of the slitting machine, and the new blades are pushed into the knife holder of the slitting machine to complete the replacement of the blades.

[0009] By adopting the above scheme, the old blades replaced from the knife holder of the slitting machine can be received, and the new blades can be assembled to the knife holder of the slitting machine, which is simple in structure and convenient to operate.

[0010] In some embodiments, the free end of the knife holder arm is arranged close to the knife holder of the slitting machine, and the knife holder arm and the knife holder of the slitting machine are at the same height, so that the knife holder of the slitting machine and the knife holder arm are directly connected, which is beneficial to the replacement of the blades and simple and convenient.

[0011] In some embodiments, the knife holder arm is provided with a limiting block close to the upper support, which can prevent the blades from colliding with the upper support, and at the same time, the moving stroke of the blades is reduced, which saves time and effort.

[0012] In some embodiments, the bottom end of the upper support is provided with a first rotating structure, the top end of the lower support is provided with a second rotating structure, the first rotating structure can rotate relative to the second rotating structure, and the first rotating structure can rotate around its own center axis.

[0013] By adopting the above scheme, the two groups of knife holder arms can be easily rotated through the cooperation of the first rotating structure and the second rotating structure, which is beneficial to receiving the blades on the knife holder of the slitting machine and replacing new blades.

[0014] In some embodiments, the second rotating structure is relatively arranged on the outer wall of the first rotating structure; the first rotating structure comprises a first rotating disc fixed on the bottom end of the upper support and a first pressing plate fixed on the bottom end of the first rotating disc; the second rotating structure comprises a second rotating disc fixed on the top end of the lower support and a second pressing plate fixed on the top end of the second rotating disc; and the outer wall of the first rotating disc and the inner wall of the second rotating disc are spaced apart and formed with an annular cavity, and a bearing is arranged in the annular cavity.

[0015] By the above scheme, the bearing is arranged, so that the rotation of the first rotating structure relative to the second rotating structure is more smooth, and the operation is more labor-saving.

[0016] In some embodiments, the outer wall of the first rotating disc is inwardly recessed to form a first mounting groove, the bottom wall of the first mounting groove is arranged as an opening, the first pressing plate can close the bottom wall opening of the first mounting groove; the inner wall of the second rotating disc is inwardly recessed to form a second mounting groove, the top wall of the second mounting groove is arranged as an opening, the pressing plate can close the top wall opening of the second mounting groove; and the first mounting groove, the first pressing plate, the second mounting groove and the second pressing plate cooperate to form the annular cavity.

[0017] By the above scheme, the first pressing plate and the second pressing plate are respectively pressed at the bottom end and the top end of the bearing, on the one hand, the mounting stability of the bearing is realized, and then the stable rotation of the first rotating structure is ensured; on the other hand, the first pressing plate and the second pressing plate are detachable structures, so that the disassembly and assembly of the bearing are facilitated.

[0018] In some embodiments, the rotating locking structure is further included, which can lock the upper support on the lower support; and then the stability of the whole tool changer when replacing the blade is ensured.

[0019] In some embodiments, the rotating locking structure includes a fixed seat fixed on the second rotating structure, and a positioning latch movably connected to the fixed seat; the first rotating structure is arranged with a plurality of positioning holes along the ring direction; the positioning latch can be close to or away from the first rotating structure, and the positioning latch can be close to and inserted into the positioning hole on the first rotating structure, so that the first rotating structure is fixed relative to the second rotating structure; the positioning latch can be away from and separated from the positioning hole on the first rotating structure, so that the first rotating structure can rotate relative to the second rotating structure.

[0020] Specifically, the fixing seat is fixed on the second rotating disc, the outer wall of the first rotating disc is provided with a plurality of positioning holes, and the first rotating disc is provided with a guide block at the positioning hole, the guide block is provided with a guide hole communicated with the positioning hole, so that the insertion accuracy of the positioning pin is improved, and the operation is more convenient; wherein the fixing seat comprises an insertion hole coaxially arranged with the positioning hole, and the positioning pin can be close to or away from the positioning hole along the insertion hole; when the knife holder arm needs to be rotated, the positioning pin is operated to be away from and separated from the positioning hole and the guide hole along the insertion hole of the fixing seat, so as to release the first rotating disc, and then the rotation of the knife holder arm is realized; after the rotation of the knife holder arm is completed, the positioning pin is operated to be inserted into the guide hole and the positioning hole along the insertion hole of the fixing seat in sequence, and then the first rotating disc is locked on the second rotating disc, so as to ensure the locking of the knife holder arm, improve the stability during replacement of the blade and the stability during replacement of the knife holder, and be safer.

[0021] In some embodiments, the fixing base is provided with a sliding rail along the length direction thereof; and the bottom end of the lower support is provided with a sliding block in sliding cooperation with the sliding rail.

[0022] Specifically, the fixing base comprises a base bottom plate and two sliding rails fixed on both ends of the base bottom plate in the width direction; the lower side of the sliding rail is further provided with a sliding rail bottom plate, and a plurality of reinforcing plates are arranged between the two sliding rail bottom plates; the lower support comprises a lower base, two groups of sliding blocks fixed on both ends of the lower base, a lower support column fixed on the upper end of the lower base, and a second rotating disc fixed on the top end of the lower support column, and the two ends of the lower base are provided with mounting plates for mounting the sliding blocks, and a plurality of reinforcing side plates are arranged in a ring shape on the side wall of the lower support column, the bottom end of the reinforcing side plate is fixed on the lower base, and the top end is fixed on the second rotating disc, so as to improve the strength and stability of the entire lower support.

[0023] In some embodiments, the sliding rail is provided with a plurality of locking holes along the length direction thereof; and the lower support is provided with a locking piece, which can be inserted into the locking hole through the lower support to lock the lower support on the sliding rail.

[0024] In some embodiments, the inner wall of one of the mounting plates is fixedly mounted with a positioning structure, the positioning structure comprises a positioning block, the mounting plate is provided with an avoiding opening for avoiding the positioning block, the lower base of the lower support, the mounting plate and the positioning block are provided with coaxially arranged through holes, so that the locking member can be locked in the locking hole on the slide rail after sequentially passing through the lower base, the mounting plate and the positioning block, thereby achieving the locking between the lower support and the slide rail, and further ensuring the stability of the whole tool changer during replacement of the blade, and improving the accuracy of replacement of the blade.

[0025] (Three) beneficial effects

[0026] Compared with the prior art, the utility model discloses a slitting machine tool changer structure,

[0027] (1) the utility model discloses can undertake the old blade of the tool holder of slitting machine and assemble new blade to the tool holder of slitting machine, simple structure, convenient operation;

[0028] (2) the tool holder arm of the utility model and the tool holder of slitting machine are on the same height, so that the tool holder of slitting machine and the tool holder arm are directly connected, which is beneficial to the replacement of the blade, and is simple and convenient;

[0029] (3) the utility model discloses the cooperation of first rotation structure and second rotation structure can easily rotate two groups of tool holder arms, which is beneficial to undertake the blade on the tool holder of slitting machine and replace new blade; And, the bearing is arranged between the two, which can make the rotation of the first rotation structure relative to the second rotation structure more smooth, and the operation is more labor-saving;

[0030] (4) the rotation locking structure of the utility model can lock the upper support on the lower support; Further ensure the stability of the whole tool changer during replacement of the blade;

[0031] (5) the locking member of the utility model can be inserted into the locking hole of the lower support, which can realize the locking between the lower support and the slide rail, and further ensure the stability of the whole tool changer during replacement of the blade, and improve the accuracy of replacement of the blade. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0033] Figure 1 It is a structural schematic view of a slitting machine tool changer structure of the utility model.

[0034] Figure 2 for Figure 1 enlarged view of part A in the middle;

[0035] Figure 3 for Figure 1 enlarged view of part B in the middle;

[0036] Figure 4 is a sectional view of a tool changing frame structure of a slitting machine of the utility model;

[0037] Figure 5 for Figure 4 enlarged view of part C in the middle;

[0038] Figure 6 is another sectional view of a tool changing frame structure of a slitting machine of the utility model;

[0039] Figure 7 for Figure 6 enlarged view of part D in the middle.

[0040] The corresponding component names of various reference numerals in the drawings are as follows: 100, fixed base; 101, slide rail; 1011, locking hole; 102, base bottom plate; 103, slide rail bottom plate; 104, reinforcing plate; 200, tool changing frame; 201, lower support; 2011, second rotating structure; 2011a, second rotating disc; 2011b, second pressing plate; 2011c, second mounting groove; 2012, sliding block; 2013, lower base; 2014, lower support column; 2015, reinforcing side plate; 2016, mounting plate; 2016a, avoiding opening; 202, upper support; 2021, first rotating structure; 2021a, first rotating disc; 2021b, first pressing plate; 2021c, first mounting groove; 2021d, positioning hole; 203, tool changing frame arm; 2031, limiting block; 205, bearing; 206, locking piece; 207, guide block; 2071, guide hole; 300, rotating locking structure; 301, fixed seat; 3011, insertion hole; 302, positioning bolt; 400, positioning structure; 401, positioning block. DETAILED DESCRIPTION

[0041] The specific embodiments of the utility model are described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0042] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can indirectly connect through the intermediate medium, can be two element internal communication. For ordinary skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0043] The following describes the embodiments of the present application by specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. The present application can also be implemented or applied by another different specific embodiment, and the details in the specification can be based on different views and applications, and various modifications or changes can be made without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0044] It should be noted that the various aspects of the embodiments described below are within the scope of the appended claims. It should be apparent that the aspects described herein can be embodied in a wide variety of forms and that any specific structure and / or function described herein is merely illustrative. Based on the present application, those skilled in the art should understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, the devices and / or methods can be implemented using any number and combination of the aspects set forth herein. In addition, this device and / or method can be implemented using other structures and / or functionality in addition to or instead of one or more of the aspects set forth herein.

[0045] It should also be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner, and only show the components related to the present application in the drawings, not the number, shape and size of the components when actually implemented. The actual implementation of each component can be a random change, and the component layout pattern can be more complex.

[0046] In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the present application can be practiced without these specific details.

[0047] The technical solutions provided by the embodiments of the present application are described below with reference to the drawings.

[0048] As Figures 1-7 shown, the utility model provides a knife rest structure of slitting machine for replacing the blade on the knife rest of slitting machine, it includes fixed base 100 and the knife rest 200 of sliding installation on fixed base 100, the knife rest 200 can be close to or far from the knife rest of slitting machine along fixed base 100, the knife rest 200 includes the lower support 201 of sliding installation on fixed base 100, the upper support 202 of rotation connection on the top end of lower support 201 and the two groups of knife rest arms 203 of symmetrical arrangement at both ends of upper support 202, the knife rest arm 203 is used to install blade, and, the upper support 202 can drive the knife rest arm 203 rotates around the direction perpendicular to the axial direction of knife rest arm 203 to replace the blade on slitting machine and install new blade, specifically, the fixed base 100 along its length direction both ends, one end is close to the knife rest of slitting machine, the other end is far from the knife rest of slitting machine, the space between both ends is the moving space of knife rest 200, and, the one group of knife rest arms 203 of one end close to the knife rest of slitting machine is not equipped with blade and is used to receive old blade, and the one group of knife rest arms 203 of one end far from the knife rest of slitting machine is equipped with new blade, when the knife rest 200 moves along the length direction of fixed base 100 to one end close to the knife rest of slitting machine, the knife rest 200 is in the position of replacing old blade, and old blade on the knife rest of slitting machine can be directly pushed into the one group of knife rest arms 203 not equipped with blade, after old blade is assembled to knife rest arm 203, the upper support 202 is operated to rotate 180 °, and the knife rest arm 203 equipped with new blade is close to the knife rest of slitting machine, and new blade is pushed into the knife rest of slitting machine, and the replacement of blade is completed, by the above-mentioned scheme, old blade replaced from the knife rest of slitting machine can be received, and new blade is assembled to the knife rest of slitting machine, and the structure is simple, and the operation is convenient, in some embodiments, the free end of knife rest arm 203 is close to the knife rest of slitting machine, and the knife rest arm 203 and the knife rest of slitting machine are on the same height, so that the knife rest of slitting machine and knife rest arm 203 are directly docked, which is beneficial to the replacement of blade, and simple and convenient, in some embodiments, the limiting block 2031 is arranged at the place close to the upper support 202 of knife rest arm 203, which can prevent blade from impacting upper support 202, and simultaneously reduce the moving stroke of blade, save time and labour.

[0049] In some embodiments, the bottom end of the upper support 202 is provided with a first rotating structure 2021, the top end of the lower support 201 is provided with a second rotating structure 2011, the first rotating structure 2021 is rotatable relative to the second rotating structure 2011, and the first rotating structure 2021 is rotatable about its own central axis. With the above scheme, through the cooperation of the first rotating structure 2021 and the second rotating structure 2011, the two groups of knife holder arms 203 can be easily rotated, which is conducive to receiving the blades on the knife holder of the slitting machine and replacing new blades. In some embodiments, the second rotating structure 2011 is relatively sleeved on the outer wall of the first rotating structure 2021; wherein the first rotating structure 2021 comprises a first rotating disc 2021a fixed on the bottom end of the upper support 202, and a first pressing plate 2021b fixed on the bottom end of the first rotating disc 2021a; the second rotating structure 2011 comprises a second rotating disc 2011a fixed on the top end of the lower support 201, and a second pressing plate 2011b fixed on the top end of the second rotating disc 2011a; and the outer wall of the first rotating disc 2021a and the inner wall of the second rotating disc 2011a are spaced apart and formed with an annular cavity, and a bearing 205 is arranged in the annular cavity. With the above scheme, the arrangement of the bearing 205 can realize smoother rotation of the first rotating structure 2021 relative to the second rotating structure 2011, making the operation more labor-saving. In some embodiments, the outer wall of the first rotating disc 2021a is inwardly recessed to form a first mounting groove 2021c, the bottom wall of the first mounting groove 2021c is provided as an opening, and the first pressing plate 2021b can close the bottom wall opening of the first mounting groove 2021c; the inner wall of the second rotating disc 2011a is inwardly recessed to form a second mounting groove 2011c, the top wall of the second mounting groove 2011c is provided as an opening, and the pressing plate can close the top wall opening of the second mounting groove 2011c; and the first mounting groove 2021c, the first pressing plate 2021b, the second mounting groove 2011c and the second pressing plate 2011b cooperate to form the annular cavity. With the above scheme, by pressing the first pressing plate 2021b and the second pressing plate 2011b at the bottom end and the top end of the bearing 205 respectively, on the one hand, the installation stability of the bearing 205 is realized, thereby ensuring the stable rotation of the first rotating structure 2021; on the other hand, the first pressing plate 2021b and the second pressing plate 2011b are detachable structures, which is convenient for dismounting and mounting the bearing 205.

[0050] In some embodiments, a rotation locking structure 300 is further included, which can lock the upper support 202 on the lower support 201, thereby ensuring the stability of the entire tool changer 200 when replacing the tool bit. In some embodiments, the rotation locking structure 300 includes a fixed seat 301 fixed on the second rotating structure 2011, and a positioning latch 302 movably connected to the fixed seat 301; the first rotating structure 2021 is provided with a plurality of positioning holes 2021d along the ring direction; the positioning latch 302 can approach or move away from the first rotating structure 2021, and the positioning latch 302 can approach and be inserted into the positioning hole 2021d on the first rotating structure 2021, so that the first rotating structure 2021 is fixed relative to the second rotating structure 2011; the positioning latch 302 can move away from and be separated from the positioning hole 2021d on the first rotating structure 2021, so that the first rotating structure 2021 can rotate relative to the second rotating structure 2011. Specifically, the fixed seat 301 is fixed on the second rotating disc 2011a, the outer wall of the first rotating disc 2021a is provided with a plurality of positioning holes 2021d; and the first rotating disc 2021a is provided with a guide block 207 at the positioning hole 2021d, the guide block 207 is provided with a guide hole 2071 communicating with the positioning hole 2021d, so as to improve the insertion accuracy of the positioning latch 302, and make the operation more convenient; wherein the fixed seat 301 includes an insertion hole 3011 coaxially arranged with the positioning hole 2021d, and the positioning latch 302 can approach or move away from the positioning hole 2021d along the insertion hole 3011; when it is needed to rotate the tool changer arm 203, the positioning latch 302 is operated to move away from and be separated from the positioning hole 2021d and the guide hole 2071 along the insertion hole 3011 of the fixed seat 301, so as to release the first rotating disc 2021a, thereby realizing the rotation of the tool changer arm 203; after the rotation of the tool changer arm 203 is completed, the positioning latch 302 is operated to be sequentially inserted into the guide hole 2071 and the positioning hole 2021d along the insertion hole 3011 of the fixed seat 301, thereby locking the first rotating disc 2021a on the second rotating disc 2011a, thereby ensuring the locking of the tool changer arm 203, improving the stability when replacing the tool bit and the stability when sliding the tool changer 200, and being safer.

[0051] In some embodiments, the fixed base 100 is provided with sliding rails 101 along the length direction thereof; the bottom end of the lower support 201 is provided with sliding blocks 2012 which are in sliding cooperation with the sliding rails 101. Specifically, the fixed base 100 comprises a base bottom plate 102 and two sliding rails 101 which are fixed at the two ends of the base bottom plate 102 in the width direction thereof; the lower side of the sliding rail 101 is further provided with a sliding rail bottom plate 103, and a plurality of reinforcing plates 104 are arranged between the two sliding rail bottom plates 103; the lower support 201 comprises a lower base 2013, two groups of sliding blocks 2012 which are fixed at the two ends of the lower base 2013, a lower support column 2014 which is fixed at the upper end of the lower base 2013, and a second rotating disc 2011a which is fixed at the top end of the lower support column 2014, and the two ends of the lower base 2013 are provided with mounting plates 2016 for mounting the sliding blocks 2012, and a plurality of reinforcing side plates 2015 are arranged in a ring shape on the side wall of the lower support column 2014, the bottom end of the reinforcing side plates 2015 is fixed on the lower base 2013, and the top end is fixed on the second rotating disc 2011a, so as to improve the strength and stability of the entire lower support 201. In some embodiments, the sliding rail 101 is provided with a plurality of locking holes 1011 along the length direction thereof; the lower support 201 is provided with a locking piece 206 which can be inserted into the locking hole 1011 of the sliding rail 101 through the lower support 201, so as to lock the lower support 201 on the sliding rail 101. In some embodiments, the inner wall of one of the mounting plates 2016 is fixedly mounted with a positioning structure 400 which comprises a positioning block 401, the mounting plate 2016 is provided with an avoiding opening 2016a for avoiding the positioning block 401, and the lower base 2013 of the lower support 201, the mounting plate 2016 and the positioning block 401 are provided with through holes which are coaxially arranged, so that the locking piece 206 can be sequentially inserted into the lower base 2013, the mounting plate 2016 and the positioning block 401, and then locked in the locking hole 1011 of the sliding rail 101, so as to realize the locking between the lower support 201 and the sliding rail 101, thereby ensuring the stability of the entire tool changer 200 when replacing the blade and improving the accuracy of replacing the blade.

[0052] The same or similar parts among various embodiments in the specification can be referred to each other, and each embodiment focuses on the difference from other embodiments.

[0053] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any changes or replacements within the technical scope disclosed in the present application can be easily thought by those skilled in the art, and should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A slitting machine tool changer structure for replacing blades on the tool holder of a slitting machine; characterized in that: The slitting machine includes a fixed base (100) and a tool changer (200) slidably mounted on the fixed base (100). The tool changer (200) is capable of moving closer to or further away from the tool holder of the slitting machine along the fixed base (100). The tool changer (200) includes a lower support (201) slidably mounted on the fixed base (100), an upper support (202) rotatably connected to the top of the lower support (201), and two sets of tool holder arms (203) symmetrically arranged at both ends of the upper support (202). The tool holder arms (203) are used to install blades, and the upper support (202) can drive the tool holder arms (203) to rotate about an axis perpendicular to the tool holder arms (203) to replace the blades on the slitting machine and install new blades.

2. The slitting machine tool changer structure according to claim 1, characterized in that: The free end of the blade holder arm (203) is located close to the blade holder of the slitting machine, and the blade holder arm (203) and the blade holder of the slitting machine are at the same height.

3. The slitting machine tool changer structure according to claim 1, characterized in that: A limit block (2031) is provided on the tool holder arm (203) near the upper support (202).

4. The slitting machine tool changer structure according to claim 1, characterized in that: The bottom end of the upper support (202) is provided with a first rotating structure (2021), and the top end of the lower support (201) is provided with a second rotating structure (2011). The first rotating structure (2021) can rotate relative to the second rotating structure (2011), and the first rotating structure (2021) can rotate around its own central axis.

5. The slitting machine tool changer structure according to claim 4, characterized in that: The second rotating structure (2011) is sleeved on the outer wall of the first rotating structure (2021); wherein, the first rotating structure (2021) includes a first rotating disk (2021a) fixed on the bottom end of the upper support (202) and a first pressure plate (2021b) fixed on the bottom end of the first rotating disk (2021a); ​​the second rotating structure (2011) includes a second rotating disk (2011a) fixed on the top end of the lower support (201) and a second pressure plate (2011b) fixed on the top end of the second rotating disk (2011a); and, the outer wall of the first rotating disk (2021a) and the inner wall of the second rotating disk (2011a) are spaced apart and form an annular cavity, and a bearing (205) is provided in the annular cavity.

6. The slitting machine tool changer structure according to claim 5, characterized in that: The outer wall of the first rotating disk (2021a) is recessed inward to form a first mounting groove (2021c), the bottom wall of the first mounting groove (2021c) is set as an opening, and the first pressure plate (2021b) can close the bottom wall opening of the first mounting groove (2021c); the inner wall of the second rotating disk (2011a) is recessed inward to form a second mounting groove (2011c), the top wall of the second mounting groove (2011c) is set as an opening, and the pressure plate can close the top wall opening of the second mounting groove (2011c); and the first mounting groove (2021c), the first pressure plate (2021b), the second mounting groove (2011c) and the second pressure plate (2011b) cooperate to form the annular cavity.

7. The slitting machine tool changer structure according to claim 4, characterized in that: It also includes a rotation locking structure (300) that can lock the upper bracket (202) onto the lower bracket (201).

8. The slitting machine tool changer structure according to claim 7, characterized in that: The rotation locking structure (300) includes a fixed base (301) fixed on the second rotation structure (2011) and a positioning pin (302) movably connected to the fixed base (301); the first rotation structure (2021) is provided with a plurality of positioning holes (2021d) along the circumferential direction; the positioning pin (302) can approach or move away from the first rotation structure (2021), and the positioning pin (302) can be inserted into the positioning hole (2021d) on the first rotation structure (2021) so that the first rotation structure (2021) is fixed relative to the second rotation structure (2011); the positioning pin (302) can move away from and disengage from the positioning hole (2021d) on the first rotation structure (2021) so that the first rotation structure (2021) can rotate relative to the second rotation structure (2011).

9. The slitting machine tool changer structure according to claim 1, characterized in that: The fixed base (100) is provided with a slide rail (101) along its length; the bottom end of the lower bracket (201) is provided with a slider (2012) that slides in cooperation with the slide rail (101).

10. The slitting machine tool changer structure according to claim 9, characterized in that: The slide rail (101) has a plurality of locking holes (1011) along its length; the lower bracket (201) is provided with a locking member (206), which can pass through the lower bracket (201) and be inserted into the locking hole (1011) to lock the lower bracket (201) onto the slide rail (101).

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