Tipping paper cutting system

Abstract

The present invention provides a tipping paper cutting system, which includes a tipping paper splicing joint shredded paper suction device arranged in a knife roller protective cover, the tipping paper splicing joint shredded paper suction device includes a suction hood, a collection box, and a negative pressure generating device, the suction hood is located below the paper cutting knife roller, one end of the suction hood extends to the lower gap between the paper cutting knife roller and the paper cutting drum and forms a protrusion, a U-shaped suction port is arranged on the protrusion, and the opening of the suction port is vertically upward; a closed space connected to the suction port is arranged in the suction hood, a ventilation pipe connected to the closed space is arranged on one side of the suction hood, the ventilation pipe is connected to the collection box through a first suction duct, and the collection box is connected to the negative pressure generating device through a second suction duct; a first arc surface is arranged on one side of the suction port, and a second arc surface is arranged on the other side. The present invention can better realize the suction of shredded paper at the tipping paper splicing joint, and effectively avoid the generation of defective cigarettes.

Description

Technical Field

[0001] The invention belongs to the technical field of cigarette manufacturing, and in particular relates to a tipping paper cutting system. Background Art

[0002] The tipping paper is cut into pieces of paper that meet the length requirements by the cutter on the paper cutting drum, and is separated one by one on the paper cutting drum. When it intersects with the approaching drum, because the gap between the tipping paper cutting drum and the approaching drum is smaller than the diameter of the "cigarette group" (a combination of filter tips in the middle and mouthless cigarettes at both ends), the "cigarette group" and the starting ends of the tipping paper can be pasted together. The tipping paper and the "cigarette group" form a one-to-one correspondence. The "cigarette group" with the tipping paper is transferred to the cigarette rolling wheel through the guide plate and falls into the wheel groove of the cigarette rolling wheel. After the "cigarette group" enters the rubbing board, it rolls between the outer arc surface of the cigarette rolling wheel and the inner arc of the rubbing board. The tipping paper is rolled on the "cigarette group" to complete the cigarette rubbing process.

[0003] However, after the tipping paper is used up, a tipping paper splicing mechanism is needed to splice the spare tipping paper with the tipping paper in use. After the tipping paper splicing mechanism completes the splicing of the tipping paper, the excess parts at both ends of the splicing joint are cut and the resulting tipping paper pieces become uncontrollable paper pieces because they are not adsorbed by the negative pressure of the paper cutting drum. When mixed into the cigarette splicing process, the one-to-one correspondence between the tipping paper pieces and the "group cigarettes" is broken, resulting in excess tipping paper pieces adhering to the tipping paper of the finished cigarettes, forming defective cigarettes. Among them, these excess tipping paper pieces can be called tipping paper splicing joint shreds. Therefore, how to discharge these tipping paper splicing joint shreds has become a technical problem that technicians in this field need to solve urgently. Summary of the invention

[0004] The purpose of the present invention is to provide a tipping paper cutting system to solve the above technical problems in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A tipping paper cutting system, comprising a tipping paper splicing joint scrap suction device arranged in a knife roller protective cover, the tipping paper splicing joint scrap suction device comprising a suction hood, a collection box, and a negative pressure generating device, the suction hood is located below a paper cutting knife roller, one end of the suction hood extends to the lower gap between the paper cutting knife roller and the paper cutting drum wheel and forms a protrusion, a U-shaped suction port is arranged on the protrusion, and the opening of the suction port is vertically upward; a suction hood is provided with a A confined space, a ventilation pipe communicating with the confined space is arranged on one side of the suction hood, the ventilation pipe is connected to the collection box through a first suction duct, and the collection box is connected to the negative pressure generating device through a second suction duct; a first arcuate surface adapted to the outer circumferential surface of the paper cutting drum is arranged on the side of the suction port close to the paper cutting drum, and a second arcuate surface adapted to the outer circumferential surface of the rotating trajectory circle of the cutting knife on the paper cutting roller is arranged on the side of the suction port close to the paper cutting roller.

[0007] Preferably, the knife roller protective cover includes a protective block, a guard plate, and a positioning plate. The lower part of the protective block is provided with an arc-shaped opening groove for accommodating the paper cutting knife roller. The guard plate is arranged at one end of the protective block, and the positioning plate is arranged at the other end of the protective block. The guard plate is provided with a support hole for the ventilation pipe to pass through.

[0008] Preferably, a positioning column is provided on the rear side of the lower part of the positioning plate, and a mounting portion is provided on the end of the air suction hood away from the protruding portion, and a through hole is provided on the mounting portion for the positioning column to pass through; a mounting hole opposite to the through hole is provided on the guard plate, and the positioning column extends into the mounting hole after passing through the through hole.

[0009] Preferably, a positioning pin opposite to the positioning column is provided on the front side of the lower portion of the positioning plate, and a pin hole for the positioning pin to pass through is provided on the protruding portion; the axis of the pin hole is parallel to the axis of the through hole.

[0010] Preferably, a threaded hole is provided on the side of the air suction hood close to the guard plate, and the axis of the threaded hole is parallel to the axis of the through hole; a through hole is provided on the guard plate for a locking rod to pass through, and the through hole is opposite to the threaded hole; a screw for matching with the threaded hole is provided at one end of the locking rod, and the screw is coaxially arranged with the locking rod, and the diameter of the screw is smaller than the diameter of the locking rod; a holding ball is provided at the other end of the locking rod.

[0011] Preferably, a handle is provided on the outer wall of the guard plate.

[0012] Preferably, the handle is a U-shaped rod, and both ends of the U-shaped rod are respectively connected to the guard plate.

[0013] Preferably, there are two handles, and the two handles are respectively arranged on the guard plate.

[0014] Preferably, the collecting box comprises an outer box and an inner box, the right end of the outer box is open, the upper end of the inner box is open, the inner box is slidably arranged in the outer box, and the right side plate of the inner box is used to seal the opening of the outer box; a push-pull rod is arranged on the outer wall of the right side plate; a first connecting pipe for connecting to the first suction duct and a second connecting pipe for connecting to the second suction duct are arranged on the top plate of the outer box, and the first connecting pipe and the second connecting pipe are respectively connected to the inner cavity of the inner box.

[0015] Preferably, a filter is vertically arranged in the inner cavity of the inner box, and the filter divides the inner cavity of the inner box into a left chamber and a right chamber. The first joint pipe is connected to the right chamber, and the second joint pipe is connected to the left chamber.

[0016] The beneficial effects of the present invention are:

[0017] The tipping paper cutting system of the present invention has a tipping paper splicing joint scrap suction device arranged in its knife roller protective cover, the suction port of the suction device is located in the lower gap between the paper cutting knife roller and the paper cutting drum, and a first arc surface matched with the outer circumference of the paper cutting drum is arranged on the side of the suction port close to the paper cutting drum, and a second arc surface matched with the outer circumference of the rotating trajectory circle of the cutter is arranged on the side of the suction port close to the paper cutting knife roller, so that the suction port can be well close to the splicing of the tipping paper, so that the negative pressure suction generated by the negative pressure generating device can better act on the above-mentioned gap and the cutter and the paper cutting drum through the suction port, so that the excess parts at both ends of the splicing joint are sucked into the closed space through the suction port, and then sucked into the collection box through the ventilation pipe and the first suction pipe, thereby better realizing the suction of scraps of paper at the tipping paper splicing joint and effectively avoiding the generation of defective cigarettes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments, and further describe the specific embodiments of the present invention in detail in conjunction with the drawings, wherein

[0019] Figure 1 A schematic diagram of a tipping paper cutting system provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of an embodiment of the present invention when the air suction hood and the knife roller protective hood are not installed;

[0021] Figure 3A schematic diagram of an air suction hood provided in an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the arrangement position of the protrusion provided in an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the device for removing scraps from a tipping paper splicing joint provided by an embodiment of the present invention when in use;

[0024] Figure 6 A schematic diagram of a collection box provided in an embodiment of the present invention.

[0025] Markings in the accompanying drawings:

[0026] 11. Paper cutting drum, 12. Paper cutting knife roller, 13. Cutter, 21. Guard plate, 211. Mounting hole,

[0027] 212, support hole, 213, perforation, 22, handle, 23, protective block, 24, positioning plate,

[0028] 241, positioning column, 242, positioning pin, 25, arc opening groove, 31, ventilation pipe,

[0029] 32. Wind shield, 33. Protrusion, 331. Air inlet, 332. Pin hole,

[0030] 333, first arc surface, 334, second arc surface, 34, through hole, 35, threaded hole,

[0031] 36. Mounting part, 41. Locking rod, 42. Screw rod, 43. Holding ball,

[0032] 51. first air suction duct, 52. second air suction duct, 61. collection box, 62. outer box,

[0033] 621, top plate, 622, second joint pipe, 623, first joint pipe, 63, inner box,

[0034] 631, right side panel, 64, filter screen, 65, push-pull rod. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the solution will be further described in detail below in conjunction with specific embodiments.

[0036] like Figures 1 to 6As shown, an embodiment of the present invention provides a tipping paper cutting system, which includes a tipping paper splicing joint shredded paper suction removal device arranged in a knife roller protective cover, the tipping paper splicing joint shredded paper suction removal device includes an air suction hood 32, a collection box 61, and a negative pressure generating device, the air suction hood 32 is located below the paper cutting knife roller 12, one end of the air suction hood 32 extends to the lower gap between the paper cutting knife roller 12 and the paper cutting drum wheel 11 and forms a protrusion 33, the protrusion 33 is provided with a U-shaped air suction port 331, and the opening of the air suction port 331 is vertically upward; the air suction hood is provided with a The enclosed space communicated with the suction port, a ventilation pipe 31 communicated with the enclosed space is arranged on one side of the suction hood, the ventilation pipe 31 is connected to the collection box 61 through a first suction duct 51, and the collection box is connected to the negative pressure generating device through a second suction duct 52; a first arcuate surface 333 adapted to the outer circumferential surface of the paper cutting drum 11 is arranged at the side of the suction port close to the paper cutting roller, and a second arcuate surface 334 adapted to the outer circumferential surface of the rotation trajectory circle of the cutting knife 13 on the paper cutting roller is arranged at the side of the suction port close to the paper cutting roller.

[0037] The tipping paper cutting system provided by the embodiment of the present invention has a tipping paper splicing joint scrap suction device arranged in its knife roller protective cover, the suction port 331 of the suction device is located in the lower gap between the paper cutting knife roller and the paper cutting drum, and the side of the suction port close to the paper cutting drum is provided with a first arc surface 333 adapted to the outer circumference of the paper cutting drum, and the side of the suction port close to the paper cutting knife roller is provided with a second arc surface 334 adapted to the outer circumference of the rotation trajectory circle of the cutter, so that the suction port can be well close to the splicing of the tipping paper, so that the negative pressure suction generated by the negative pressure generating device can better act on the above-mentioned gap and the cutter and the paper cutting drum through the suction port 331, so that the excess parts at both ends of the splicing joint are sucked into the enclosed space through the suction port, and then sucked into the collection box through the ventilation pipe and the first suction pipe, thereby better realizing the suction of scraps of paper at the tipping paper splicing joint and effectively avoiding the generation of defective cigarettes.

[0038] like Figure 2 As shown, the knife roller protective cover includes a protective block 23, a guard plate 21, and a positioning plate 24. The lower part of the protective block 23 is provided with an arc-shaped opening groove 25 for accommodating the paper cutting knife roller. The guard plate 21 is arranged at one end of the protective block 23, and the positioning plate 24 is arranged at the other end of the protective block; the guard plate is provided with a supporting hole 212 for the ventilation pipe to pass through, so that the structure of the protective cover is relatively simple.

[0039] Specifically, a positioning column 241 is provided at the rear side of the lower part of the positioning plate, a mounting portion 36 is provided at one end of the air suction hood away from the protrusion, and a through hole 34 for the positioning column to pass through is provided on the mounting portion; a mounting hole 211 opposite to the through hole is provided on the guard plate, and the positioning column extends into the mounting hole 211 after passing through the through hole, so that the rear end of the air suction hood is supported and positioned by the positioning column 241. The rear end of the air suction hood is the end of the air suction hood away from the protrusion.

[0040] Furthermore, a positioning pin 242 opposite to the positioning column is provided at the front side of the lower part of the positioning plate, and a pin hole 332 for the positioning pin to pass through is provided on the protrusion; the axis of the pin hole is parallel to the axis of the through hole, so that the front end of the air hood is supported by the positioning pin. Preferably, a fixing pin coaxial with the positioning pin is provided at the lower part of the guard plate, and a hole for the fixing pin to pass through is provided on the protrusion, so that the fixing pin can be used to support the front end of the air hood, i.e., the end with the protrusion, so that the front end of the air hood can be better supported and positioned.

[0041] Specifically, a threaded hole 35 is provided on the side of the air suction hood close to the guard plate, and the axis of the threaded hole is parallel to the axis of the through hole; a through hole 213 is provided on the guard plate for the locking rod 41 to pass through, and the through hole 213 is opposite to the threaded hole, and a screw 42 for matching with the threaded hole is provided at one end of the locking rod, and the screw is coaxially arranged with the locking rod, and the diameter of the screw is smaller than the diameter of the locking rod; a holding ball 43 is provided at the other end of the locking rod. With this solution, the screw can be screwed into the threaded hole by simply rotating the locking rod with the holding ball. Since the diameter of the screw is smaller than the diameter of the locking rod, that is, there is a step surface at the connection between the screw and the locking rod, when the locking rod is rotated, the step surface can be used to press the air suction hood against the positioning plate to achieve the fixation of the air suction hood.

[0042] Preferably, a handle 22 is provided on the outer wall of the guard plate, so as to facilitate pulling the guard plate and the protection block together. The guard plate and the protection block can be an integrated structure; it can be understood that the guard plate can block the opening at one end of the arc-shaped opening slot, and the positioning plate can block the opening at the other end of the arc-shaped opening slot, and the guard plate and the positioning plate are completely matched with the end faces of the two ends of the protection block respectively to ensure air tightness; Figure 2 The remaining structural features on the middle guard plate, the positioning plate and the protective block, such as the hole positions and grooves, are the same as those in the prior art and will not be described in detail here.

[0043] Specifically, the handle 22 is a U-shaped rod, and both ends of the U-shaped rod are connected to the guard plate, so that the structure of the handle is relatively simple. It can be understood that the distance between the first arc surface 333 and the outer circumference of the paper cutting drum in the radial direction of the paper cutting drum is between 1 and 2 mm, and the distance between the second arc surface 334 and the outer circumference of the rotating trajectory circle of the cutter in the radial direction of the paper cutting knife roller is also between 1 and 2 mm, so that the suction port can be used to achieve a better suction effect on the tipping paper in the above gap, effectively preventing the tipping paper from floating into the next process.

[0044] In order to facilitate the installation between the guard plate 21 and the air suction hood, there are two handles 22, and the two handles are respectively arranged on the guard plate, so that by holding the handle 22, it is convenient to align the support hole on the guard plate 21 with the ventilation pipe, align the positioning column with the installation hole, and then install it.

[0045] like Figure 5 and Figure 6 As shown, the collection box 61 includes an outer box 62 and an inner box 63, the right end of the outer box is open, the upper end of the inner box is open, the inner box is slidably arranged in the outer box, and the right side plate 631 of the inner box is used to block the opening of the outer box; a push-pull rod 65 is arranged on the outer wall of the right side plate; a first joint pipe 623 for connecting to the first suction duct and a second joint pipe 622 for connecting to the second suction duct are arranged on the top plate 621 of the outer box, and the first joint pipe and the second joint pipe are respectively connected to the inner cavity of the inner box. With this solution, since the inner box is slidably arranged in the inner cavity of the outer box through the opening of the outer box, the inner box can be easily pushed into or pulled out of the outer box through the push-pull rod, so as to facilitate the centralized treatment of the cork paper pieces collected in the inner box. It can be understood that the cork paper sheets are sucked into the inner cavity of the inner box through the first suction duct; a certain amount of cork paper sheets can be stored in the inner cavity of the inner box, and the inner cavity of the inner box only needs to be cleaned regularly; since the opening of the inner box is blocked by the top plate of the outer box, and the opening of the outer box is blocked by the right side plate of the inner box, the air tightness of the collection box assembled by the inner box and the outer box can be better guaranteed.

[0046] Specifically, a filter screen 64 is vertically arranged in the inner cavity of the inner box, and the filter screen divides the inner cavity of the inner box 63 into a left chamber and a right chamber. The first connecting pipe is connected to the right chamber, and the second connecting pipe is connected to the left chamber, so that the cork paper pieces can be filtered out through the filter screen to prevent the cork paper pieces from entering the second suction duct.

[0047] In another embodiment provided by the present invention, the negative pressure generating device can be omitted, and instead the end of the second suction duct away from the collection box is directly connected to the process negative pressure suction duct on the cigarette equipment, thereby utilizing the negative pressure suction generated by the negative pressure suction system of the cigarette equipment itself to achieve the above-mentioned function of removing the corking paper sheets, thereby effectively saving components and simplifying the structure.

[0048] The above are only preferred embodiments of the present invention. It should be pointed out that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. Moreover, after reading the contents of the present invention, relevant technical personnel in the field may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. A tipping paper cutting system, characterized in that: The invention comprises a device for sucking away scraps of paper from a tipping paper joint arranged in a knife roller protective cover, the device comprising a suction hood, a collecting box, and a negative pressure generating device, the suction hood being located below a paper cutting knife roller, one end of the suction hood extending to the lower gap between the paper cutting knife roller and the paper cutting drum wheel and forming a bulge, the bulge being provided with a U-shaped suction port, the opening of the suction port being vertically upward; a closed space communicating with the suction port is arranged in the suction hood, A ventilation pipe communicating with the enclosed space is arranged on one side of the air suction hood, the ventilation pipe is connected to the collection box through a first air suction duct, and the collection box is connected to the negative pressure generating device through a second air suction duct; a first arcuate surface matching the outer circumferential surface of the paper cutting drum is arranged on the side of the air suction port close to the paper cutting drum, and a second arcuate surface matching the outer circumferential surface of the rotation trajectory circle of the cutting knife on the paper cutting knife roller is arranged on the side of the air suction port close to the paper cutting knife roller; The knife roller protective cover comprises a protective block, a guard plate, and a positioning plate. The lower part of the protective block is provided with an arc-shaped opening groove for accommodating the paper cutting knife roller. The guard plate is provided at one end of the protective block, and the positioning plate is provided at the other end of the protective block. The guard plate is provided with a supporting hole for the ventilation pipe to pass through. A positioning column is arranged at the rear side of the lower part of the positioning plate, a mounting portion is arranged at one end of the air suction cover away from the protruding portion, and a through hole for the positioning column to pass through is arranged on the mounting portion; a mounting hole opposite to the through hole is arranged on the guard plate, and the positioning column extends into the mounting hole after passing through the through hole; A positioning pin opposite to the positioning column is arranged on the front side of the lower part of the positioning plate, and a pin hole for the positioning pin to pass through is arranged on the protruding part; The axis of the pin hole is parallel to the axis of the through hole; A threaded hole is provided on the side of the air suction hood close to the guard plate, and the axis of the threaded hole is parallel to the axis of the through hole; a through hole is provided on the guard plate for a locking rod to pass through, and the through hole is opposite to the threaded hole; a screw for matching with the threaded hole is provided at one end of the locking rod, and the screw is coaxially arranged with the locking rod, and the diameter of the screw is smaller than the diameter of the locking rod; a holding ball is provided at the other end of the locking rod.

2. The tipping paper cutting system according to claim 1, characterized in that: A handle is arranged on the outer wall of the guard plate.

3. The tipping paper cutting system according to claim 2, characterized in that: The handle is a U-shaped rod, and both ends of the U-shaped rod are respectively connected to the guard plate.

4. The tipping paper cutting system according to claim 3, characterized in that: The number of the handles is two, and the two handles are respectively arranged on the guard plate.

5. The tipping paper cutting system according to any one of claims 1 to 4, characterized in that: The collecting box comprises an outer box and an inner box, the right end of the outer box is open, the upper end of the inner box is open, the inner box is slidably arranged in the outer box, and the right side plate of the inner box is used to block the opening of the outer box; a push-pull rod is arranged on the outer wall of the right side plate; a first connecting pipe for connecting to the first suction duct and a second connecting pipe for connecting to the second suction duct are arranged on the top plate of the outer box, and the first connecting pipe and the second connecting pipe are respectively connected to the inner cavity of the inner box.

6. The tipping paper cutting system according to claim 5, characterized in that: A filter screen is vertically arranged in the inner cavity of the inner box, and the filter screen divides the inner cavity of the inner box into a left chamber and a right chamber. The first joint pipe is connected to the right chamber, and the second joint pipe is connected to the left chamber.

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