Label paper creasing device

Abstract

The present invention relates to the technical field of cigarette manufacturing, and discloses a trademark paper creasing device, comprising: a frame; a rolling assembly, which is suitable for being rotatably connected to the frame via a first rotating shaft, the rolling assembly comprising two rolling wheels spaced apart on the first rotating shaft and a creasing member fixedly arranged on the rolling wheels; a counter-pressing assembly, which is suitable for being rotatably connected to the frame via a second rotating shaft, the counter-pressing assembly comprising two counter-pressing wheels arranged one-to-one corresponding to the two rolling wheels; a creasing avoidance portion is provided on the outer periphery of the counter-pressing wheel corresponding to the creasing member. The original folding marks of the trademark paper can be creasing again through the cooperation of the creasing member and the creasing avoidance portion, so that the creasing of the trademark paper is deepened, the smoothness and stability of the subsequent folding links are ensured, and the frequency of the lining paper turning over and the cigarette pack deformation in the cigarette packing process can be effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cigarette manufacturing, and in particular to a trademark paper creasing device. Background Art

[0002] As competition in the cigarette market becomes increasingly fierce, brands need to continuously strive to improve their competitiveness in order to gain an invincible position in the market; nowadays, they must not only strive for excellence in product quality, but also make the product's appearance more exquisite and free of appearance defects.

[0003] In the cigarette pack production process of the cigarette packaging machine, due to the insufficient depth of the die-cutting indentation when the trademark paper is produced by the original manufacturer or the shallow indentation caused by the special process of the material, coupled with the uncertainty factors caused by the transmission route of the trademark paper, the cigarette pack will have the phenomenon of the small box side popping open and folding, the lining paper folding, and the cigarette pack deformation. When such problems occur during the transportation process, the trademark paper often triggers the shutdown alarm, causing the equipment to shut down, and then affecting the production efficiency of the equipment; and if the poorly folded trademark paper enters the cigarette packaging process, the external shape of the packaged product will have certain defects, which will affect the sales of subsequent brand products and reduce consumers' satisfaction with brand products. Therefore, the shallow indentation at the folding part of the trademark paper and the unstable indentation that causes the package to fall apart are problems that need to be solved in this field. Summary of the invention

[0004] In view of this, the present invention provides a trademark paper creasing device to solve the problem that the creasing at the folding part of the trademark paper is shallow and the creasing is unstable, which causes the packaging to fall apart easily.

[0005] The present invention provides a trademark paper creasing device, comprising a frame, a rolling assembly, and a counter-pressing assembly. The rolling assembly is suitable for being rotatably connected to the frame via a first rotating shaft, the rolling assembly comprises two rolling wheels spaced apart on the first rotating shaft, and a creasing fixedly arranged on the rolling wheels; the counter-pressing assembly is suitable for being rotatably connected to the frame via a second rotating shaft, the counter-pressing assembly comprises two counter-pressing wheels arranged one-to-one corresponding to the two rolling wheels, a set gap is provided between the rolling wheels and a conveying channel suitable for conveying the trademark paper is formed therebetween; an indentation avoidance portion is provided on the outer periphery of the counter-pressing wheel corresponding to the indentation piece, the indentation avoidance portion is suitable for cooperating with the indentation piece and avoiding the indentation piece to deepen the indentation depth of the trademark paper.

[0006] In an optional embodiment, the creasing member is a creasing knife, and there are two creasing knives, which are fixed to the two inner side walls opposite to each other of the two rolling wheels.

[0007] The blade edge protrudes from the outer peripheral wall of the rolling wheel so as to extend into the indentation avoidance portion when indenting the trademark paper.

[0008] In an optional embodiment, the creasing knife is fixed to the rolling wheel by means of screws, and the creasing knife has a blade edge with an arc-shaped outer circumference.

[0009] In an optional embodiment, the indentation avoidance portion is an avoidance chamfer structure provided on two opposite inner edges of the pressing wheel; or, the indentation avoidance portion is an avoidance groove provided on the outer periphery of the pressing wheel.

[0010] In an optional embodiment, the rolling wheel is composed of two symmetrically arranged half wheel bodies, the rolling wheel comprising a first half wheel body and a second half wheel body, the first half wheel body having a first semi-cylindrical groove in the middle of its joint end face, the first half wheel body having a mounting hole radially extending therethrough and connected to the first semi-cylindrical groove; the second half wheel body having a second semi-cylindrical groove in the middle of its joint end face, the second half wheel body having a mounting hole radially extending therethrough and connected to the second semi-cylindrical groove; the first semi-cylindrical groove and the second semi-cylindrical groove can form a locking hole suitable for cooperating with the first rotating shaft after the first half wheel body and the second half wheel body are assembled, and are suitable for passing a locking screw through the mounting holes on the first half wheel body and the second half wheel body respectively and tightly against the first rotating shaft, so as to realize fastening of the rolling wheel to the first rotating shaft.

[0011] In an optional embodiment, the pressure wheel includes a third half wheel body and a fourth half wheel body, L-shaped notches are respectively provided on both sides of the third half wheel body, and a first connecting hole is formed through the bottom wall of the L-shaped notch; the fourth half wheel body and the third half wheel body are assembled together to form the pressure wheel, and a second connecting hole is formed in the fourth half wheel body at a position corresponding to the first connecting hole; the first connecting hole and the second connecting hole are threadedly connected with fastening bolts, which are suitable for passing through the first connecting hole and the second connecting hole to fasten the third half wheel body and the fourth half wheel body to the second rotating shaft.

[0012] In an optional embodiment, the trademark paper creasing device further comprises a paper guide wheel, which is fixedly disposed on the first rotating shaft and located between the two rolling wheels, and the outer diameter of the paper guide wheel is not less than the outer diameter of the rolling wheel.

[0013] In an optional embodiment, the trademark paper creasing device further comprises a paper supporting wheel, which is fixed on the second rotating shaft and located between the two pressing wheels, and the outer diameter of the paper supporting wheel does not exceed the outer diameter of the pressing wheels.

[0014] In an optional embodiment, the paper supporting wheel includes a connecting column and two wheel bodies. The connecting column is sleeved on the second rotating shaft, and a fastening hole is formed on the peripheral wall thereof. Bolts pass through the fastening hole and are tightly pressed against the second rotating shaft to fasten the paper supporting wheel to the second rotating shaft; the two wheel bodies are fixedly arranged at both ends of the connecting column, and the pressure wheel is fixedly connected to the wheel body by a locking member.

[0015] In an optional embodiment, the frame includes two support plates that are relatively spaced apart, and the first rotating shaft and the second rotating shaft are rotatably connected between the two support plates via bearings respectively.

[0016] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0017] 1. Through the action of the indentation avoidance portion provided on the pressing wheel and the indentation member provided on the rolling wheel, when the trademark paper is conveyed to the transmission channel formed between the pressing wheel and the rolling wheel, it is ensured that the original folds on both sides of the trademark paper are aligned with the indentation avoidance portion, and the indentation member will press the fold downwards on the indentation avoidance portion again, and indent the folding line of the trademark paper again, so that the original folding mark of the trademark paper is deepened, and the internal stress at the indentation position of the trademark paper enables the trademark paper to maintain a stable pre-folding posture, ensuring the smoothness and stability of the subsequent folding links, which not only enables better results to be achieved in the gluing link during the subsequent packaging, but also avoids the problem of cigarette packs spreading due to poor glue adsorption effect, thereby avoiding the phenomenon of the trademark paper bouncing back after the folding and packaging link is completed, and effectively reduces the frequency of the lining paper folding, cigarette pack deformation and other phenomena in the cigarette pack packaging process.

[0018] 2. By splitting the rolling wheel and the pressure wheel into the first half wheel body, the second half wheel body, the third half wheel body and the fourth half wheel body, the half wheel bodies can be directly clamped on the first rotating shaft and the second rotating shaft during installation, and then the first half wheel body, the second half wheel body, the third half wheel body and the fourth half wheel body are clamped and fixed on the rotating shaft through the pre-tightening force of the locking screws and the fastening bolts. When disassembly is required, the locking screws and the fastening bolts can be loosened, which is convenient for replacement, position adjustment and maintenance.

[0019] 3. The connecting column can be used to simultaneously adjust the positions of the two pressing wheels on the second rotating shaft, so that the indentation avoidance parts on the pressing wheels are aligned with the folding lines of trademark papers of different brands, ensuring that the positions of the indentation avoidance parts of the two pressing wheels correspond exactly to the indentation parts, and the original indentation lines of the trademark paper are exactly under the indentation parts, ensuring that the secondary indentation of the trademark paper is effective.

[0020] 4. By arranging a paper guide wheel between the two rolling wheels, when the creasing piece on the rolling wheel is creasing the trademark paper, the part with a larger area in the middle of the fold line of the trademark paper will curl up. At this time, the paper guide wheel located in the middle of the rolling wheel will correct the curled part of the trademark paper and press the trademark paper downward to ensure that the trademark paper is transported backward in the correct position, and is not prone to deviation and curling. The smoothness of the larger area of ​​the trademark paper during the transmission process is ensured, and the smoothness of the trademark paper during the transmission process is improved. When the middle part of the inner side of the creasing line of the trademark paper maintains a good flatness, it can ensure that the trademark paper has a deeper indentation while further improving the stability of the indentation at the folding part. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the trademark paper creasing device in an embodiment of the present invention when it is erected;

[0023] Figure 2 It is a schematic diagram of the structure of the rolling wheel, the pressing wheel and the creasing member in the embodiment of the present invention for pre-crease the trademark paper;

[0024] Figure 3 Schematic diagram of the structure of the rolling wheel in the embodiment of the present invention.

[0025] Description of reference numerals:

[0026] 1. Frame; 2. First rotating shaft; 3. Rolling wheel; 31. First half wheel body; 32. Second half wheel body; 4. Indentation piece; 5. Paper guide wheel; 6. Second rotating shaft; 7. Counter-pressing wheel; 71. Third half wheel body; 711. L-shaped notch; 72. Fourth half wheel body; 8. Indentation avoidance part; 9. Paper supporting wheel; 91. Connecting column; 92. Wheel body; 10. Trademark paper. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0028] Combine the following Figures 1 to 3 , describing an embodiment of the present invention.

[0029] like Figures 1 to 3 As shown, an embodiment of the present invention provides a trademark paper creasing device, comprising a frame 1, a rolling assembly, and a counter-pressing assembly. The rolling assembly is suitable for being rotatably connected to the frame 1 through a first rotating shaft 2. The rolling assembly comprises two rolling wheels 3 arranged at intervals on the first rotating shaft 2 and a creasing member 4 fixedly arranged on the rolling wheels 3. The counter-pressing assembly is suitable for being rotatably connected to the frame 1 through a second rotating shaft 6. The counter-pressing assembly comprises two counter-pressing wheels 7 arranged one-to-one corresponding to the two rolling wheels 3. There is a set gap between the rolling wheels 3 and the counter-pressing wheels 7, and a transmission channel suitable for transmitting the trademark paper 10 is formed between the two. An indentation avoidance portion 8 is provided on the outer periphery of the counter-pressing wheel 7 corresponding to the creasing member 4. The indentation avoidance portion 8 is suitable for cooperating with the creasing member 4 and avoiding the creasing member 4 to deepen the indentation line of the trademark paper 10. The positions and spacings of the two indentation avoidance portions 8 correspond to the positions and spacings of the two creasing members 4. The indentation avoidance portion 8 can avoid the creasing member 4, so that the traveling displacement of the creasing member 4 is larger, thereby deepening the indentation.

[0030] In this embodiment, through the action of the indentation avoidance portion 8 provided on the pressing wheel 7 and the indentation member 4 provided on the rolling wheel 3, when the trademark paper 10 is conveyed to the conveying channel formed between the pressing wheel 7 and the rolling wheel 3, it is ensured that the original folds on both sides of the trademark paper 10 are aligned with the indentation avoidance portion 8, and the indentation member 4 will press the fold downwards into the indentation avoidance portion 8 again, and indent the folding line of the trademark paper 10 again, so that the indentation of the trademark paper 10 is deepened, and the internal stress at the indentation position of the trademark paper 10 enables the trademark paper 10 to maintain a stable pre-folding posture, thereby ensuring the smoothness and stability of the subsequent folding process, which not only enables the subsequent packaging to achieve better results in the gluing process, but also avoids the problem of cigarette packs spreading due to poor glue adsorption effect, thereby avoiding the phenomenon of the trademark paper 10 bouncing back after the folding and packaging process is completed, and effectively reduces the frequency of the lining paper folding, cigarette pack deformation and other phenomena in the cigarette pack packaging process.

[0031] In this embodiment, the frame 1 includes two support plates arranged relatively at a distance, the first rotating shaft 2 and the second rotating shaft 6 are rotatably connected between the two support plates through bearings, and the two rolling wheels 3 and the two pressing wheels 7 are respectively arranged on the first rotating shaft 2 and the second rotating shaft 6 in a one-to-one manner. The center of the circle between the pressing wheel 7 and the rolling wheel 3 is kept fixed and at a suitable distance, which is slightly smaller than the thickness of the cigarette pack label paper. When the two rotating shafts rotate toward each other, that is, the rolling wheel 3 rotates counterclockwise from top to bottom, and the pressing wheel 7 rotates clockwise from bottom to top, the rolling wheel 3 and the pressing wheel 7 will be driven to rotate toward each other. When the label paper enters the gap between the two, under the action of the friction force of the two wheels and the shear force of the indentation member 4, the folding mark depth can be increased, and the label paper can also be effectively transmitted to the next step. When the trademark paper 10 is conveyed in, since the indentation lines on both sides of the trademark paper 10 correspond to the indentation avoidance parts 8 on the pressing wheels 7, when the trademark paper 10 enters the gap between the two, the indentation lines there are pressed downwards and pressed onto the indentation avoidance parts 8 under the action of the indentation member 4. Under the friction force of the two wheels and the shear force of the indentation member 4, the folding marks can be enlarged and deepened, and the trademark paper 10 can also be effectively conveyed to the next step.

[0032] In an optional embodiment, the creasing member 4 is a creasing knife. There are two creasing knives, which are fixed on two opposite inner walls of the two rolling wheels 3. The edge of the creasing knife protrudes from the outer wall of the rolling wheel 3 so that it can extend into the creasing avoidance portion 8 when creasing the trademark paper 10.

[0033] Specifically, Figure 3 As shown, two grooves are symmetrically provided on the outer periphery of the rolling wheel 3 between the creasing knives, that is, the two creasing knives on both sides are respectively distributed at a quarter of the position of the rolling wheel 3. The grooves on both sides will enable the rolling wheel 3 to intermittently creasing the folding marks of the trademark paper 10, and the distribution of the creasing knives is exactly the position where the trademark paper 10 needs to be creasing. When the part of the creasing knife protruding from the outer peripheral wall of the rolling wheel 3 rotates to the lower part, it will cooperate with the creasing avoidance part 8 to press the folding mark of the trademark paper 10 downward, thereby deepening the depth of the folding mark.

[0034] It should be noted that the folding lines on both sides of the trademark paper 10 do not need to be indented twice. Only some areas that are easy to fold, such as the position of the indentation line on the upper part of the trademark paper 10, need to be indented twice.

[0035] Optionally, the creasing knife is fixed to the rolling wheel 3 by screws, and the creasing knife has a blade edge with an arc-shaped outer periphery. Fixing the creasing knife to the rolling wheel 3 by screws facilitates the later disassembly and replacement, making it easy to use. At the same time, the blade edge of the creasing knife is designed to be in the shape of an arc outer periphery, which can increase the length of the indentation, so that the length of the indentation line is extended. Of course, the present application is not limited to fixing by screws, and other fixing tools can also be used for fixing.

[0036] In an optional embodiment, the indentation avoidance portion 8 is an avoidance groove arranged on the outer periphery of the pressing wheel 7. The avoidance groove is an annular groove or an arc-shaped groove formed by partially concavely concave the outer peripheral wall of the pressing wheel 7. Through the cooperation between the groove and the indentation knife, the indentation knife can press the indentation line downward into the groove to further deepen the indentation line.

[0037] In another optional embodiment, see Figure 1 and Figure 3 As shown, the indentation avoidance portion 8 is an avoidance chamfer structure provided on the two opposite inner edges of the pressing wheel 7. When the indentation knife rotates to the position of the avoidance chamfer structure, the paper inside the indentation line of the trademark paper 10 can be made smoother, so that the paper on both sides of the indentation line maintains a stable pre-folding posture, which is convenient for the subsequent inward folding and packaging of the trademark paper 10 on both sides. Compared with the indentation avoidance portion 8 designed as an avoidance groove, which may cause the indentation line to sink into the groove and the paper inside the indentation line to become uneven, the avoidance chamfer structure adopted in this embodiment can ensure that the indentation is not easy to sink into the indentation avoidance portion 8 after indentation, thereby ensuring the smoothness of transportation and the flatness of the paper inside the indentation line.

[0038] In the above embodiment, the avoidance chamfering structure is an arc chamfering structure provided on the inner peripheral edge of the pressing wheel 7 to avoid the indentation member 4 .

[0039] In an optional embodiment, the rolling wheel 3 is composed of two symmetrically arranged half wheel bodies, specifically, the rolling wheel 3 includes a first half wheel body 31 and a second half wheel body 32, the first half wheel body 31 has a first semi-cylindrical groove in the middle of its spliced ​​end surface, and a mounting hole connected to the first semi-cylindrical groove is opened in the radial direction on the first half wheel body 31. The second half wheel body 32 has a second semi-cylindrical groove in the middle of its spliced ​​end surface, and a mounting hole connected to the second semi-cylindrical groove is opened in the radial direction on the second half wheel body 32; the first semi-cylindrical groove and the second semi-cylindrical groove can form a locking hole suitable for matching with the first rotating shaft 2 after the first half wheel body 31 and the second half wheel body 32 are spliced, and are suitable for passing the mounting holes on the first half wheel body 31 and the second half wheel body 32 through the locking screws respectively and tightly against the first rotating shaft 2, so as to realize the rolling wheel 3 being fastened to the first rotating shaft 2. The locking screws can be used to facilitate installation or removal of the first half wheel body 31 and the second half wheel body 32, and to facilitate the subsequent adjustment of the position of the rolling wheel 3, so that the indentation knife on it is aligned with the indentation avoidance portion 8 on the pressing wheel 7 to prevent the two from offsetting and affecting the indentation effect, and also facilitate subsequent replacement and maintenance.

[0040] Furthermore, the pressure wheel 7 includes a third half wheel body 71 and a fourth half wheel body 72. L-shaped notch portions 711 are respectively provided on both sides of the third half wheel body 71. A first connecting hole is formed through the bottom wall of the L-shaped notch portion 711. The fourth half wheel body 72 and the third half wheel body 71 are assembled with each other to form the pressure wheel 7. A second connecting hole is formed in the fourth half wheel body 72 at a position corresponding to the first connecting hole. Fastening bolts are threadedly connected in the first connecting hole and the second connecting hole, which are suitable for passing through the first connecting hole and the second connecting hole to fasten the third half wheel body 71 and the fourth half wheel body 72 to the second rotating shaft 6.

[0041] Specifically, in actual use, the first semi-cylindrical groove of the first half wheel body 31 and the second semi-cylindrical groove of the second half wheel body 32 are aligned with the first rotating shaft 2 and put together. The aperture enclosed by the first semi-cylindrical groove and the second semi-cylindrical groove is slightly smaller than the diameter of the first rotating shaft 2. Then the two are abutted on the first rotating shaft 2 through the mounting hole by a locking screw. The first half wheel body 31 and the second half wheel body 32 are clamped and fixed under the pre-tightening force of the locking screw. When they need to be disassembled, the locking screw can be unscrewed out.

[0042] When fixing the pressure wheel 7, first assemble the third half wheel body 71 and the fourth half wheel body 72 on the second rotating shaft 6, and then pass the fastening bolts through the first connecting hole and the second connecting hole to fix the third half wheel body 71 and the fourth half wheel body 72 together. Under the action of the pre-tightening force of the fastening bolts, the pressure wheel 7 composed of the third half wheel body 71 and the fourth half wheel body 72 is fixed on the second rotating shaft. When disassembly is required, the fastening bolts can be unscrewed outwards.

[0043] In an optional embodiment, the trademark paper creasing device further includes: a paper guide wheel 5 fixedly disposed on the first rotating shaft 2 and located between the two rolling wheels 3 , and the outer diameter of the paper guide wheel 5 is not less than the outer diameter of the rolling wheel 3 .

[0044] In this embodiment, when the creasing knife on the rolling wheel 3 is creasing the trademark paper 10, the part with a larger area in the middle of the fold line of the trademark paper 10 will bend upward. At this time, the paper guide wheel 5 located in the middle of the rolling wheel 3 will correct the upturned part of the trademark paper 10 and press the trademark paper 10 downward so that the trademark paper 10 can be transported backward in the correct position without being easily deviated or warped. The smoothness of the larger side of the trademark paper 10 during the transportation process is ensured, and the smoothness of the trademark paper 10 during the transportation process is improved. Since the middle part of the inner side of the indentation of the trademark paper 10 maintains good flatness, the stability of the indentation at the folding part can be further improved while ensuring that the trademark paper 10 has a deeper indentation.

[0045] Furthermore, the paper guide wheel 5 is locked and fixed on the first rotating shaft 2 by a locking member. Specifically, the locking member is a locking bolt. In order to facilitate the installation and disassembly of the paper guide wheel 5, the paper guide wheel 5 is designed to be two half wheels that can be assembled. A mounting hole is radially opened on the two half wheels. The two half wheels are directly clamped on the first rotating shaft 2 and then the paper guide wheel 5 can be fixed on the first rotating shaft 2 by passing the locking bolt through the mounting hole.

[0046] In an optional embodiment, the trademark paper creasing device further includes a paper supporting wheel 9 , which is fixed on the second rotating shaft 6 and located between the two pressing wheels 7 . The outer diameter of the paper supporting wheel 9 does not exceed the outer diameter of the pressing wheels 7 .

[0047] Preferably, the paper supporting wheel 9 includes a connecting column 91 and two wheel bodies 92, which are sleeved on the second rotating shaft 6. A fastening hole is opened on the peripheral wall thereof. Bolts pass through the fastening hole and are tightly pressed against the second rotating shaft 6 to fasten the paper supporting wheel 9 to the second rotating shaft 6; the two wheel bodies 92 are fixedly arranged at both ends of the connecting column 91, and the pressure wheel 7 is fixedly connected to the wheel body 92 by a locking piece, that is, the pressure wheel 7 is respectively fixed to the two wheel bodies 92 by the locking pieces.

[0048] Furthermore, the side surface of the connecting column 91 has a planar structure, and a fastening hole is formed through the planar structure. Bolts are threadedly connected in the fastening hole, and the connecting column 91 is fixedly connected to the rotating shaft through the bolts.

[0049] It should be noted that the connecting column 91 can be used to simultaneously adjust the positions of the two pressing wheels 7 on the rotating shaft, so that the indentation avoidance portion 8 on the pressing wheel 7 is aligned with the folding line of the trademark paper 10 of different brands, ensuring that the indentation avoidance portion 8 on the two pressing wheels 7 is exactly located corresponding to the indentation knife, and the original indentation line of the trademark paper 10 is just under the indentation knife, ensuring that the secondary indentation of the trademark paper 10 is effective; and the two pressing wheels 7 can be corrected during installation through the action of the two wheel bodies 92, and the two pressing wheels 7 are directly aligned with the locking piece for correction and positioning, and then installed on the wheel, and then the third half wheel body 71 and the fourth half wheel body 72 are assembled together through the locking bolt, and the locking piece plays a certain positioning role to avoid the two pressing wheels 7 from offsetting each other when installed to the second rotating shaft 6.

[0050] It should be noted that, since the two pressing wheels 7 are split into two half wheels, each of which is clamped on the second rotating shaft 6, errors are inevitable during the installation process, resulting in the same parts of the pressing wheels 7 on both sides being on different horizontal lines, affecting the subsequent indentation and packaging effects. The locking piece can play a positioning role, and the two pressing wheels 7 can be aligned and fixedly installed on the wheel body 92. In this way, under the action of the second rotating shaft 6, the connecting column 91 will be driven to rotate, and the connecting column 91 will drive the two wheels together.

[0051] The body 92 and the pressing wheel 7 rotate, and when the positions of the two pressing wheels 7 need to be adjusted, the bolts are loosened and the connecting column 91 is directly moved so that the indentation avoidance portions 8 on the pressing wheels 7 on both sides are aligned with the indentation lines of the trademark paper 10 to be indented.

[0052] In this embodiment, since the paper guide wheel 5 and the paper support wheel 9 are correspondingly installed on the rotating shaft, when the trademark paper 10 enters the gap between the two, the trademark paper 10 can ensure that the trademark paper 10 runs stably during the transportation process and the position does not shift under the rolling action of the paper guide wheel 5 and the paper support wheel 9, so that the pressing wheel 7, the rolling wheel 3 and the creasing knife can stably creasing the trademark paper 10, so as to achieve the purpose of re-creasing the trademark, stabilize the creasing stiffness of the trademark paper 10, and make the molding effect of the trademark paper 10 good, reduce the quality problems such as the side bounce of the small box trademark paper 10, the deformation of the cigarette package, and the side damage, thereby improving the packaging quality of the cigarette package.

[0053] In other embodiments, in order to adjust the spacing between the two pressing wheels 7, an adjusting device may be provided on the two wheel bodies 92 for adjusting the distance between the two pressing wheels 7 and the wheel body 92. Further, the locking member may be set as a screw rod, on which two fixing nuts are threadedly connected, and the pressing wheel 7 is provided with three locking holes axially extending therethrough, and the locking holes are aligned with the screw rod and then passed through the screw rod, and the position of the pressing wheel 7 on the screw rod can be adjusted by adjusting the positions of the two fixing nuts.

[0054] In other embodiments, the trademark paper indentation device also includes two limiting wheels fixedly arranged on the second rotating shaft 6, and the two limiting wheels are arranged on the two outer sides of the two pressing wheels 7 to limit the displacement of the pressing wheels 7. The wheel body 92 of the limiting wheel and the paper supporting wheel 9 limits the pressing wheels 7 between the two, thereby limiting the displacement of the pressing wheels 7 in the axial direction, avoiding the pressing wheels 7 from moving in the axial direction, making it impossible for the indentation part 4 to be accurately docked with the indentation avoidance part 8, thereby affecting the indentation effect.

[0055] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A label paper creasing device, It is characterized in that include: Rack(1); A rolling assembly, adapted to be rotatably connected to the frame (1) via a first rotating shaft (2), the rolling assembly comprising two rolling wheels (3) arranged at intervals on the first rotating shaft (2) and an indentation member (4) fixedly arranged on the rolling wheels (3); a counter-pressing assembly, adapted to be rotatably connected to the frame (1) via a second rotating shaft (6), the counter-pressing assembly comprising two counter-pressing wheels (7) arranged in one-to-one correspondence with the two rolling wheels (3), a set gap being provided between the rolling wheels (3) and the counter-pressing wheels (7), and a conveying channel suitable for conveying the trademark paper (10) being formed between the two; An indentation avoidance portion (8) is provided on the outer circumference of the pressing wheel (7) corresponding to the indentation piece (4), and the indentation avoidance portion (8) is suitable for cooperating with the indentation piece (4) and avoiding the indentation piece (4) to deepen the indentation depth of the trademark paper (10); A paper guide wheel (5) is fixedly arranged on the first rotating shaft (2) and is located between the two rolling wheels (3); the outer diameter of the paper guide wheel (5) is not less than the outer diameter of the rolling wheels (3); A paper supporting wheel (9) is fixedly mounted on the second rotating shaft (6) and is located between the two pressing wheels (7); the outer diameter of the paper supporting wheel (9) does not exceed the outer diameter of the pressing wheels (7); When the trademark paper (10) enters the gap between the paper guide wheel (5) and the paper support wheel (9), the trademark paper (10) can be ensured to run stably during the transportation process under the counter-rolling action of the paper guide wheel (5) and the paper support wheel (9).

2. The trademark paper creasing device according to claim 1, It is characterized in that Two corresponding creasing members (4) are fixed to the two opposite inner side walls of the two rolling wheels (3), and the creasing members (4) are creasing knives. The edge of the creasing knife protrudes from the outer peripheral wall of the rolling wheel (3) so as to be able to extend into the creasing avoidance portion (8) when creasing the trademark paper (10).

3. The trademark paper creasing device according to claim 2, It is characterized in that The creasing knife is fixed to the rolling wheel (3) by means of screws, and the creasing knife has a blade edge with an arc-shaped outer circumference.

4. The trademark paper creasing device according to any one of claims 1 to 3, It is characterized in that The indentation avoidance portion (8) is an avoidance chamfer structure provided on two opposite inner edges of the pressing wheel (7); Alternatively, the indentation avoidance portion (8) is an avoidance groove arranged on the outer periphery of the pressing wheel (7).

5. The trademark paper creasing device according to any one of claims 1 to 3, It is characterized in that The rolling wheel (3) is composed of two symmetrically arranged half wheel bodies, and the rolling wheel (3) comprises: A first half wheel body (31), a first semi-cylindrical groove being provided in the middle of a spliced ​​end surface thereof, and a mounting hole being provided radially through the first half wheel body (31) and communicating with the first semi-cylindrical groove; A second half wheel body (32), a second semi-cylindrical groove being provided in the middle of a spliced ​​end surface thereof, and a mounting hole being radially through-opened on the second half wheel body (32) and communicating with the second semi-cylindrical groove; The first semi-cylindrical groove and the second semi-cylindrical groove can form a locking hole suitable for matching with the first rotating shaft (2) after the first half wheel body (31) and the second half wheel body (32) are assembled, and are suitable for passing a locking screw through the mounting holes on the first half wheel body (31) and the second half wheel body (32) respectively and tightly against the first rotating shaft (2), so as to realize fastening of the rolling wheel (3) to the first rotating shaft (2).

6. The trademark paper creasing device according to any one of claims 1 to 3, It is characterized in that The pressing wheel (7) comprises: The third half wheel body (71) is provided with L-shaped notch portions (711) on both sides, and a first connecting hole is formed through the bottom wall of the L-shaped notch portion (711); A fourth half wheel body (72) is assembled with the third half wheel body (71) to form the pressure wheel (7), and a second connection hole is provided in the fourth half wheel body (72) at a position corresponding to the first connection hole; The first connecting hole and the second connecting hole are internally threadedly connected with fastening bolts, which are suitable for passing through the first connecting hole and the second connecting hole to fasten the third half wheel body (71) and the fourth half wheel body (72) to the second rotating shaft (6).

7. The label paper creasing device according to claim 1, It is characterized in that The paper supporting wheel (9) comprises: A connecting column (91) is sleeved on the second rotating shaft (6), and a fastening hole is formed on the peripheral wall of the connecting column. A bolt passes through the fastening hole and abuts against the second rotating shaft (6) to fasten the paper supporting wheel (9) to the second rotating shaft (6); Two wheel bodies (92) are fixedly arranged at the two ends of the connecting column (91), and the wheel bodies (92) of the pressing wheel (7) and the paper supporting wheel (9) are fixedly connected via a locking piece.

8. The trademark paper creasing device according to any one of claims 1 to 3, It is characterized in that Said The frame (1) comprises two support plates which are arranged relatively spaced apart from each other, and the first rotating shaft (2) and the second rotating shaft (6) are rotatably connected between the two support plates via bearings.

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