Quick-change cutter counter roller device

Abstract

The utility model relates to the technical field of counter-lining roller, specifically relates to a quick change type cutter counter-lining roller device. Form a mounting groove in one side of counter-lining roller body, the top of counter-lining roller body is formed with the positioning groove of intercommunication with mounting groove, and working boss is located in positioning groove, and with counter-lining roller body detachable connection, the side of working boss away from mounting groove is flush with the outer periphery of counter-lining roller body, and the elastic buffer mechanism of elastic buffer mechanism includes sleeve, the elastic piece of being located in sleeve and the ball of being located in one end of elastic piece, sleeve is fixed in mounting groove, and the part of ball stretches out sleeve and is resisted with working boss. The above structure does not need to dismount counter-lining roller body integrally, only needs to replace working boss, does not need to replace whole counter-lining roller body, greatly reduces the waste of material, and reduces production cost.

Description

Technical Field

[0001] This utility model relates to the field of backing roller technology, and in particular to a quick-change cutter backing roller device. Background Technology

[0002] The pull-tab cutting is a crucial step in the outer transparent paper packaging process. Its function is to cut a "U"-shaped notch at the adhesive joint between the transparent paper and the pull-tab, making it easier for consumers to open the finished cigarette pack. The quality of the pull-tab cutting directly affects the subsequent conveying, wrapping, and folding of the transparent paper, so it is necessary to regularly observe the wear of the backing roller and replace it in a timely manner.

[0003] The existing belt cutter backing roller is an arc-shaped roller, with the following structure: Figure 1 As shown, its center has a mounting hole, which is loosely fitted onto the boss of the transparent paper conveying roller. The four sets of bolts corresponding to the fixing end face of the backing roller are connected to the flange end face of the transparent paper conveying roller. During operation, under the squeezing action of the cutting backing roller and the blade, a "U"-shaped notch is cut at the bonding point between the transparent paper and the pull belt.

[0004] The existing backing rollers suffer from stress concentration in localized areas due to repeated contact with the "U"-shaped cutter. After a period of operation, the corresponding positions of the backing rollers are squeezed and engraved with "U"-shaped indentations, causing damage to the rollers themselves. When the indentations are too deep, the "U"-shaped notch cannot be completely cut on the transparent paper, affecting the next process and product quality. Therefore, it is necessary to replace the backing rollers with the belt cutter in a timely manner. The integrated structure and fixed connection of the backing rollers do not allow for quick disassembly and installation. Moreover, only the part of the backing roller that contacts the belt cutter is the working surface, but the entire backing roller must be replaced every time, resulting in material waste. Utility Model Content

[0005] This utility model provides a quick-change cutter backing roller device to solve the problems existing in the prior art.

[0006] This utility model discloses a quick-change cutter backing roller device, comprising: a backing roller body, a working boss, and an elastic buffer mechanism. A mounting groove is formed on one side of the backing roller body, and a positioning groove communicating with the mounting groove is formed on the top of the backing roller body. The working boss is disposed within the positioning groove and detachably connected to the backing roller body. The side of the working boss away from the mounting groove is flush with the outer periphery of the backing roller body. The elastic buffer mechanism includes a sleeve, an elastic element disposed within the sleeve, and a ball bearing disposed at one end of the elastic element. The sleeve is fixed within the mounting groove, and a portion of the ball bearing extends out of the sleeve and abuts against the working boss.

[0007] Optionally, the mounting groove is provided with a mounting baffle, which has an L-shaped structure and includes a first mounting plate and a second mounting plate connected to each other. The first mounting plate has a strip groove formed along the height direction, and a first fastening component is provided on the strip groove. The first mounting plate is mounted on the bottom wall of the mounting groove through the first fastening component. The sleeve is fixedly mounted on the second mounting plate.

[0008] Optionally, the sleeve includes a base, a cylinder and a cover plate connected sequentially from bottom to top. A first mounting hole is formed on the base, and a second mounting hole is formed on the second mounting plate. A second fastening component is provided on the first mounting hole and the second mounting hole, and the base is mounted on the second mounting plate through the second fastening component. The elastic element is disposed inside the cylinder, and a clearance hole is formed on the cover plate, with a portion of the ball extending out along the clearance hole; The cover plate and the cylinder are connected by a third fastener.

[0009] Optionally, the positioning groove is a trapezoidal groove, and the working boss has a trapezoidal structure, including a first body and a second body connected in sequence. The length of the first body is greater than that of the second body, and the second body protrudes from the positioning groove and is flush with the outer periphery of the anti-roller body.

[0010] Optionally, the first fastening assembly includes a first bolt and a first nut, and the second fastening assembly includes a second bolt and a second nut, wherein both the first bolt and the second bolt are internal hexagon head bolts.

[0011] Optionally, the anti-reflective roller body includes an upper ring and a lower ring, the inner rings of the upper ring and the lower ring form the mounting groove, the elastic buffer mechanism is disposed on the inner ring of the upper ring, and the positioning groove is located on the side wall of the upper ring.

[0012] Optionally, the lower ring has two recessed platforms on the side opposite to the upper ring, and a first fastener is provided in the recessed platform for connecting the lower ring and the upper ring.

[0013] Optionally, an adjusting shim is provided between the upper ring and the lower ring, and the adjusting shim is sleeved on the first fastener; a fixing shim is sleeved on the first bolt, and the fixing shim abuts against the first mounting plate.

[0014] Optionally, a third mounting hole is also formed on the second mounting plate, and a second fastener is provided on the third mounting hole, and the first mounting plate and the second mounting plate are connected by the second fastener; The first fastener, the second fastener, and the third fastener are all screws, wherein the screws are internal hexagonal head screws.

[0015] Optionally, the elastic element is characterized by being a spring.

[0016] The beneficial effects of the quick-change cutter backing roller device provided in this utility model embodiment are as follows: the backing roller body is the basic load-bearing structure of the entire device, and a special mounting groove is formed on one side of it, which provides space for the subsequent installation of various components; at the same time, a positioning groove connected to the mounting groove is formed on the top of the backing roller body. The positioning groove is set to accurately position the working boss and ensure the accuracy of its installation position. In use, the side of the working boss furthest from the mounting groove (the upper surface) serves as the working surface, forming a pressing pair with the high-speed rotating "U"-shaped cutter. When the transparent paper and the pull strip pass through the gap between them, under the pressure of the cutter, the working boss and the elastic buffer mechanism jointly bear the impact force of the blade, cutting a "U"-shaped tear of consistent depth at the adhesive joint. That is, the impact force of the cutter is transmitted from the working boss to the ball bearing, and the elastic element compresses and absorbs stress, achieving local buffering and deformation compensation, playing a role in buffering and shock absorption, reducing the rigid impact between the cutter and the working boss, slowing down the wear rate of the working boss, and extending its service life. In addition, when it is necessary to replace the working boss, the detachable design of the working boss and the backing roller body allows the working boss to be easily replaced after wear. The operator only needs to remove the elastic buffer mechanism from the backing roller body to remove the working boss from the backing roller body. There is no need to disassemble the entire backing roller body; only the working boss needs to be replaced, which greatly reduces material waste and lowers production costs. Attached Figure Description

[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is a schematic diagram of the structure of the anti-roller device in the prior art; Figure 2 This is a schematic diagram of the overall structure of the quick-change cutter backing roller device provided in this embodiment of the utility model; Figure 3 This is a front view of the quick-change cutter backing roller device provided in this embodiment of the utility model; Figure 4 This is a rear view of the quick-change cutter backing roller device provided in this embodiment of the utility model; Figure 5 This is a top view of the quick-change cutter backing roller device provided in this embodiment of the utility model; Figure 6 This is a bottom view of the quick-change cutter backing roller device provided in this embodiment of the utility model; Figure 7 This is a side view of the quick-change cutter backing roller device provided in this embodiment of the utility model; Figure 8 This is a schematic diagram of the structure of the working boss provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the overall structure of the elastic buffer mechanism provided in this embodiment of the utility model; Figure 10 This is a front view of the elastic buffer mechanism provided in this embodiment of the utility model; Figure 11 This is a schematic diagram of the structure of the mounting baffle provided in an embodiment of the present utility model; Figure 12 This is a schematic diagram of the structure of the second mounting plate provided in this embodiment of the utility model; The labels for the attached figures are as follows: 10. Reverse roller body; 101. Mounting groove; 102. Positioning groove; 110. Upper ring; 120. Lower ring; 1201. Recessed platform; 121. First fastener; 130. Adjusting shim; 20. Working boss; 210. First body; 220. Second body; 30. Elastic buffer mechanism; 310. Sleeve; 311. Base; 312. Cylinder; 313. Cover plate; 3101. First mounting hole; 320. Elastic element 330, Ball bearing; 340, Second fastening assembly; 341, Second bolt; 342, Second nut; 3102, Clearance hole; 350, Third fastener; 40, Mounting baffle; 410, First mounting plate; 420, Second mounting plate; 4101, Strip groove; 4201, Second mounting hole; 4202, Third mounting hole; 431, First bolt; 432, First nut; 440, Fixing washer; 450, Second fastener. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0019] This utility model embodiment provides a quick-change cutter backing roller device, such as... Figures 2 to 10As shown, the device includes a backing roller body 10, a working boss 20, and an elastic buffer mechanism 30. A mounting groove 101 is formed on one side of the backing roller body 10, and a positioning groove 102 communicating with the mounting groove 101 is formed on the top of the backing roller body 10. The working boss 20 is disposed in the positioning groove 102 and is detachably connected to the backing roller body 10. The side of the working boss 20 away from the mounting groove 101 is flush with the outer periphery of the backing roller body 10. The elastic buffer mechanism 30 includes a sleeve 310, an elastic element 320 disposed in the sleeve 310, and a ball 330 disposed at one end of the elastic element 320. The sleeve 310 is fixed in the mounting groove 101, and a portion of the ball 330 extends out of the sleeve 310 and abuts against the working boss 20.

[0020] The lining roller body 10 is the basic load-bearing structure of the entire device. A mounting groove 101 is specifically formed on one side of the lining roller body 10, providing space for the installation of subsequent components. Simultaneously, a positioning groove 102, connected to the mounting groove 101, is formed on the top of the lining roller body 10. The positioning groove 102 is designed to precisely position the working boss 20, ensuring the accuracy of its installation position. During use, the side of the working boss 20 away from the mounting groove 101 (the upper surface) serves as the working surface, forming a pressing pair with the high-speed rotating "U"-shaped cutter. When the transparent paper and the pull strip pass through the gap, under the pressure of the cutter, the working boss 20 and the elastic buffer mechanism 30 jointly bear the impact force of the blade, cutting a "U"-shaped tear of consistent depth at the adhesive joint. That is, the impact force of the cutter is transmitted from the working boss 20 to the ball bearing 330, and the elastic element 320 absorbs the stress through compression, achieving local buffering and deformation compensation, playing a role in buffering and shock absorption, and reducing the rigidity between the cutter and the working boss 20. The impact is reduced, slowing down the wear rate of the working boss 20 and extending its service life. In addition, when the working boss 20 needs to be replaced, the detachable design of the working boss 20 and the backing roller body 10 makes it easy to replace the working boss 20 after it is worn. The operator only needs to remove the elastic buffer mechanism 30 from the backing roller body 10 to remove the working boss 20 from the backing roller body 10. There is no need to disassemble the backing roller body 10 as a whole. Only the working boss 20 needs to be replaced, without replacing the entire backing roller body 10. This greatly reduces material waste and lowers production costs.

[0021] As a preferred embodiment, refer to Figures 2 to 3 , Figure 6 as well as Figure 11 and Figure 12The mounting groove 101 is provided with a mounting baffle 40, which has an L-shaped structure and includes a first mounting plate 410 and a second mounting plate 420 connected to each other. The first mounting plate 410 has a strip groove 4101 formed along the height direction. A first fastening component is provided on the strip groove 4101. The first mounting plate 410 is set on the bottom wall of the mounting groove 101 by the first fastening component. The sleeve 310 is fixedly set on the second mounting plate 420.

[0022] The design of the strip groove 4101 allows the first mounting plate 410 to be adjusted in height and is fixed to the bottom wall of the mounting groove 101 by the first fastening component. This allows for adjustment of the relative position of the mounting baffle 40 according to actual needs. The sleeve 310 is fixedly mounted on the second mounting plate 420. This structural arrangement enables the elastic buffer mechanism 30 to be stably installed in the mounting groove 101 via the mounting baffle 40, and also facilitates adjustment of the position of the elastic buffer mechanism 30, ensuring that the ball bearing 330 maintains a good abutment with the working boss 20. This allows the elastic buffer mechanism 30 and the working boss 20 to cooperate to adapt to the working environment. Of course, a mounting opening (not shown in the figure) corresponding to the strip groove 4101 is also formed on the bottom wall of the mounting groove 101 for installing the first fastening component.

[0023] As a preferred embodiment, refer to Figure 9 and Figure 10 The sleeve 310 includes a base 311, a cylinder 312, and a cover plate 313 connected sequentially from bottom to top. A first mounting hole 3101 is formed on the base 311, and a second mounting hole 4201 is formed on the second mounting plate 420. A second fastening component 340 is provided on the first mounting hole 3101 and the second mounting hole 4201. The base 311 is mounted on the second mounting plate 420 through the second fastening component 340. An elastic element 320 is provided inside the cylinder 312. A clearance hole 3102 is formed on the cover plate 313, and a portion of the ball bearing 330 extends out along the clearance hole 3102. The cover plate 313 and the cylinder 312 are connected by a third fastener 350.

[0024] The sleeve 310 is composed of a base 311, a cylinder 312, and a cover plate 313 connected sequentially from bottom to top. A first mounting hole 3101 is formed on the base 311, and a second mounting hole 4201 is formed on the second mounting plate 420. A second fastening component 340 is provided on both the first and second mounting holes 3101 and 4201. The base 311 is mounted on the second mounting plate 420 via this second fastening component 340. This connection method ensures the stability of the connection between the sleeve 310 and the mounting baffle 40. An elastic element 320 is disposed inside the cylinder 312, and a clearance hole 3102 is formed on the cover plate 313. A portion of the ball bearing 330 extends along the clearance hole 3102. The clearance hole 3102 can both limit the movement of the ball bearing 330, preventing it from falling out of the sleeve 310, and without affecting its normal movement. The cover plate 313 and the cylinder 312 are connected by a third fastener 350, which facilitates the installation, replacement and maintenance of the elastic element 320 and the ball bearing 330 inside the cylinder 312.

[0025] As a preferred embodiment, refer to Figure 2 , Figure 3 and Figure 8 The positioning groove 102 is a trapezoidal groove, and the working boss 20 has a trapezoidal structure, including a first body 210 and a second body 220 connected in sequence. The length of the first body 210 is greater than that of the second body 220. The second body 220 protrudes from the positioning groove 102 and is flush with the outer periphery of the backing roller body 10.

[0026] The above structure enables the working boss 20 to be stably fixed in the positioning groove 102, and the working boss 20 will not detach from the positioning groove 102 along the side away from the elastic buffer mechanism 30. When it is necessary to replace or disassemble the working boss 20, the elastic buffer mechanism 30 can be removed from the backing roller body 10 first, and the working boss 20 can be disassembled or assembled. The replacement is convenient and can ensure the stability of use after replacement.

[0027] As a preferred embodiment, the first fastening assembly includes a first bolt 431 and a first nut 432, and the second fastening assembly 340 includes a second bolt 341 and a second nut 342, wherein the first bolt 431 and the second bolt 341 are both internal hexagonal head bolts.

[0028] The above-mentioned specific forms of the first fastening component and the second fastening component 340 are defined. The internal hexagonal head bolt has the advantages of compact structure, reliable connection and convenient disassembly and assembly, and is convenient for use in places with limited space.

[0029] As a preferred embodiment, refer to Figures 2 to 7The anti-reflective roller body 10 includes an upper ring 110 and a lower ring 120. The inner rings of the upper ring 110 and the lower ring 120 form an mounting groove 101. An elastic buffer mechanism 30 is provided on the inner ring of the upper ring 110, and a positioning groove 102 is located on the side wall of the upper ring 110.

[0030] The design of the lining roller body 10 as a combination of an upper ring 110 and a lower ring 120 makes the formation of the mounting groove 101 more reasonable and facilitates the processing and manufacturing of the lining roller body 10. The elastic buffer mechanism 30 is located within the inner ring of the upper ring 110, and the positioning groove 102 is located on the side wall of the upper ring 110, resulting in a more compact layout of components and more rational space utilization. This split structure also allows for individual replacement of any damaged ring, further reducing material waste and replacement costs. The rational layout of the components also makes the overall structure of the device more compact and its operation more stable.

[0031] As a preferred embodiment, refer to Figure 3 The lower ring 120 has two recessed platforms 1201 on the side opposite to the upper ring 110. A first fastener 121 is provided in the recessed platform 1201, which is used to connect the lower ring 120 and the upper ring 110.

[0032] The recessed platform 1201 allows the head of the first fastener 121 to be embedded within the recessed platform 1201, preventing it from protruding from the surface of the lower ring 120 and thus avoiding any impact on the fit between the lower ring 120 and other components. The symmetrical arrangement of the two recessed platforms 1201 ensures the balance and stability of the connection between the upper ring 110 and the lower ring 120.

[0033] As a preferred embodiment, refer to Figures 2 to 4 An adjusting shim 130 is provided between the upper ring 110 and the lower ring 120, and the adjusting shim 130 is sleeved on the first fastener 121; a fixing shim 440 is sleeved on the first bolt 431, and the fixing shim 440 abuts against the first mounting plate 410.

[0034] The adjusting shim 130 is used to adjust the tightness of the upper ring 110 and the lower ring 120, improving the assembly accuracy between them; a fixing shim 440 is fitted on the first bolt 431, and the fixing shim 440 abuts against the first mounting plate 410. The fixing shim 440 can increase the contact area between the first bolt 431 and the first mounting plate 410, disperse the pressure, prevent the first mounting plate 410 from deforming due to excessive force during long-term use, and also improve the reliability of the first fastening assembly connection.

[0035] As a preferred embodiment, refer to Figure 6 , Figure 11 and Figure 12 The second mounting plate 420 also has a third mounting hole 4202, and a second fastener 450 is provided on the third mounting hole 4202. The first mounting plate 410 and the second mounting plate 420 are connected by the second fastener 450. The first fastener 121, the second fastener 450 and the third fastener 350 are all screws, wherein the screws are internal hexagonal head screws.

[0036] The above-mentioned connection method of the first mounting plate 410 and the second mounting plate 420 and the fasteners used are specified. The use of hexagon socket head cap screws also takes advantage of their compact structure, reliable connection and convenient disassembly and assembly to ensure the stability of the connection between the first mounting plate 410 and the second mounting plate 420, and further improve the operational reliability of the entire device.

[0037] As a preferred embodiment, the elastic element 320 is a spring.

[0038] Springs are common elastic elements with good elastic properties and stability. They can undergo corresponding elastic deformation when subjected to pressure and return to their original shape after the pressure is removed. They are suitable as the elastic element 320 in the elastic buffer mechanism 30, providing stable buffering force for the working boss 20. At the same time, springs have low procurement costs and are easy to replace, which helps to reduce the overall cost and maintenance cost of the device.

[0039] The quick-change cutter backing roller device of this embodiment is convenient and quick to install and disassemble. When the indentation on the upper surface of the working boss 20 does not meet the usage conditions, the first mounting plate 410 is moved downward along the strip groove 4101 by loosening the first nut 432. At this time, the elastic buffer mechanism 30 moves accordingly. Then, the working boss 20 to be replaced is taken out, the new working boss 20 is reinstalled, and then the first nut 432 is reset and tightened to complete the replacement of the working boss 20. This solution not only reduces the difficulty and time of disassembly, but also saves the consumption of non-working surface materials by only replacing the disassembly working boss 20.

[0040] The first fastener 121 is an internal hex socket head cap screw, the cylindrical head of which is embedded in the recessed platform 1201 of the lower ring 120. The disassembly tool is an internal hex wrench, which is convenient for working in the narrow space around the backing roller. When it is necessary to adjust the relative position of the working boss 20 and the "U" shaped cutter (not shown in the figure), simply use an internal hex wrench to loosen the two sets of screws, and then tighten the screws after adjusting them to the appropriate position.

[0041] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A quick-change cutter backing roller device, characterized in that, include: The lining roller body has a mounting groove formed on one side and a positioning groove that communicates with the mounting groove formed on the top of the lining roller body. A working boss is provided in the positioning groove and is detachably connected to the anti-roller body. The side of the working boss away from the mounting groove is flush with the outer periphery of the anti-roller body. An elastic buffer mechanism includes a sleeve, an elastic element disposed within the sleeve, and a ball bearing disposed at one end of the elastic element. The sleeve is fixed within the mounting groove, and a portion of the ball bearing extends out of the sleeve and abuts against the working boss.

2. The quick-change cutter backing roller device according to claim 1, characterized in that, The mounting groove is provided with a mounting baffle, which has an L-shaped structure and includes a first mounting plate and a second mounting plate connected to each other. The first mounting plate has a strip groove along the height direction, and a first fastening component is provided on the strip groove. The first mounting plate is mounted on the bottom wall of the mounting groove through the first fastening component. The sleeve is fixedly mounted on the second mounting plate.

3. The quick-change cutter backing roller device according to claim 2, characterized in that, The sleeve includes a base, a cylinder and a cover plate connected sequentially from bottom to top. A first mounting hole is formed on the base and a second mounting hole is formed on the second mounting plate. A second fastening component is provided on the first mounting hole and the second mounting hole. The base is mounted on the second mounting plate through the second fastening component. The elastic element is disposed inside the cylinder, and a clearance hole is formed on the cover plate, with a portion of the ball extending out along the clearance hole; The cover plate and the cylinder are connected by a third fastener.

4. The quick-change cutter backing roller device according to claim 3, characterized in that, The positioning groove is a trapezoidal groove, and the working boss has a trapezoidal structure, including a first body and a second body connected in sequence. The length of the first body is greater than that of the second body, and the second body protrudes from the positioning groove and is flush with the outer periphery of the anti-roller body.

5. The quick-change cutter backing roller device according to claim 4, characterized in that, The first fastening assembly includes a first bolt and a first nut, and the second fastening assembly includes a second bolt and a second nut, wherein the first bolt and the second bolt are both internal hexagon head bolts.

6. The quick-change cutter backing roller device according to claim 5, characterized in that, The anti-coupling roller body includes an upper ring and a lower ring, the inner rings of the upper ring and the lower ring form the mounting groove, the elastic buffer mechanism is disposed on the inner ring of the upper ring, and the positioning groove is located on the side wall of the upper ring.

7. The quick-change cutter backing roller device according to claim 6, characterized in that, The lower ring has two recessed platforms on the side opposite to the upper ring. A first fastener is provided in the recessed platform to connect the lower ring and the upper ring.

8. The quick-change cutter backing roller device according to claim 7, characterized in that, An adjusting shim is provided between the upper ring and the lower ring, and the adjusting shim is sleeved on the first fastener; A fixing washer is fitted on the first bolt, and the fixing washer abuts against the first mounting plate.

9. The quick-change cutter backing roller device according to claim 8, characterized in that, The second mounting plate also has a third mounting hole, on which a second fastener is provided, and the first mounting plate and the second mounting plate are connected by the second fastener; The first fastener, the second fastener, and the third fastener are all screws, wherein the screws are internal hexagonal head screws.

10. The quick-change cutter backing roller device according to any one of claims 1 to 9, characterized in that, The elastic element is a spring.

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