Cutting device and method for cigarette filter stick processing

Abstract

The invention relates to the technical field of cigarette filter rod processing, in particular to a cutting device for cigarette filter rod processing, which comprises a rack, the top of the rack is connected with a barrel, one side of the barrel is communicated with a mounting barrel, the mounting barrel is rotatably connected with a rotating shaft, and the rotating shaft is axially and uniformly connected with a plurality of cutters positioned in the mounting barrel at intervals; a rotating drum is rotationally connected into the drum body through a rotating shaft, and a plurality of arc-shaped grooves for bearing filter sticks are uniformly formed in the rotating drum at intervals in the circumferential direction. According to the filter stick slitting device, through cooperation of the cylinder body, the rotating cylinder and the arc-shaped groove, filter sticks can be conveyed to the cutting knife one by one to be slit, the slit filter sticks can be automatically put onto the belt conveying assembly, the effect of continuously slitting the filter sticks can be achieved, and the filter stick slitting efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of cigarette filter rod processing, and in particular to a cutting device and method for cigarette filter rod processing. Background Art

[0002] The cutting of cigarette filter rods is an important link in the cigarette production process. After searching, the patent publication number is: CN117400322A, a cigarette filter rod cutting device, including a frame, a linear drive component, a material tray base, a discharge tray and a cutter component; the linear drive component is arranged on the frame; the material tray base is arranged on the linear drive component, and the linear drive component is configured to drive the material tray base to reciprocate along a first direction; the discharge tray is detachably arranged on the material tray base, and the discharge tray is provided with a plurality of semicircular grooves along the first direction, and the semicircular grooves are configured to carry filter rods, and the semicircular grooves extend along a second direction, and the second direction is perpendicular to the first direction, and the discharge tray is provided with a plurality of cutting grooves along the second direction, and the cutting grooves extend along the first direction, and the cutting grooves are communicated with the semicircular grooves; the cutter component is arranged on the frame, and the cutter component is configured to cut the filter rods carried by the semicircular grooves along the first direction.

[0003] Although the above patent can cut the filter rod, the above patent has the following defects in actual use:

[0004] 1. The linear drive assembly drives the tray base to drive the discharge tray to move horizontally once to complete a slitting operation. After the slitting is completed, the slitting filter rods need to be removed from the discharge tray and replaced with new ones before the next slitting operation can be performed. It takes a lot of time and effort to take and place the filter rods one by one, resulting in a large workload and high labor intensity for the workers. It also causes the slitting process to be interrupted, making it impossible to continuously perform the filter rod slitting operation, and the slitting efficiency is not ideal.

[0005] 2. Due to the softness of the filter rod, when the cutter cuts the filter rod, the mutual compression between the cutter and the filter rod and between the filter rod and the discharge tray will cause the filter rod to deform. However, the above patent does not provide a structure that can round the cut filter rod, which will cause the filter rod to have an irregular shape, affecting the subsequent use and quality. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a cigarette filter rod cutting device which can not only continuously perform filter rod cutting work but also round the cut filter rods.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a cutting device for processing cigarette filter rods, comprising a frame, a cylinder body connected to the top of the frame, a mounting cylinder connected to one side of the cylinder body, a rotating shaft rotatably connected to the mounting cylinder, a plurality of cutting knives located in the mounting cylinder are connected to the rotating shaft at even intervals along the axial direction, a rotating drum is rotatably connected to the cylinder body through the rotating shaft, a plurality of arc grooves for carrying filter rods are evenly spaced along the circumferential direction on the rotating drum, a gap between the circumferential side wall of the rotating drum and the circumferential inner wall of the cylinder body is smaller than the diameter of the filter rod, a plurality of arc grooves for carrying filter rods are evenly spaced along the axial direction on the rotating drum The top of the cylinder is connected to a material box with a knife groove adapted to the cutting knife, a belt conveyor assembly is arranged in the frame, a discharge port for dropping the cut filter rods onto the belt conveyor assembly is opened at the bottom of the cylinder, a mounting frame is connected to the upper part of the frame, a shaping plate for rounding the filter rods is arranged in the mounting frame, a screw rod I is rotatably connected to the mounting frame, and the screw rod I is threadedly connected to the shaping plate, the belt conveyor assembly is transmission-connected to the rotating shaft to drive the rotating shaft to drive the cutting knife to rotate and cut the filter rod, and the rotating shaft is transmission-connected to the rotating shaft to drive the rotating shaft to drive the rotating drum to rotate and transport the filter rods to the cutting knife for cutting.

[0008] Preferably, the conveyor belt of the belt conveyor assembly is provided with material grooves for carrying filter rods at even intervals.

[0009] Preferably, the side of the shaping plate close to the mounting cylinder is designed as an inclined surface so as to smoothly guide the filter rod to the lower side of the shaping plate for rounding.

[0010] Preferably, a plurality of suction cups are connected at intervals in each arc-shaped groove, and a driving mechanism for driving the suction cups to suck and release the filter rod is provided on the rotating drum.

[0011] Preferably, the driving mechanism includes a cylinder body and a piston rod. A plurality of cylinder bodies are embedded and evenly spaced along the circumferential direction on the rotating drum. A piston rod is slidably connected in each cylinder body. The piston rod extends out of the rotating drum and is connected to a push rod. A spring is connected between the push rod and the rotating drum. A plurality of manifolds are connected to each cylinder body. The manifolds are connected to the corresponding suction cups. An arc plate is connected to the inner wall of the cylinder body. The top of the arc plate adopts an inclined surface design. The push rod can contact the inclined surface of the top of the arc plate as the rotating drum rotates, and is pushed by the inclined surface of the top of the arc plate to move in a direction close to the rotating drum, thereby driving the piston rod to move and draw the air in the suction cup into the cylinder body.

[0012] Preferably, a positioning and centering mechanism for positioning and centering the filter rod is provided in the cylinder, and the positioning and centering mechanism includes two arc-shaped guide plates arranged in the cylinder and can be close to each other, the arc-shaped guide plates are located on the upper side of the rotating drum and fit with the rotating drum, the top of the arc-shaped guide plates is a conical surface, and the tops of the two arc-shaped guide plates are connected to positioning plates located in the material box, and screws II are threadedly connected to both sides of the cylinder, and the two screws II are rotatably connected to the two arc-shaped guide plates respectively.

[0013] Preferably, a correction mechanism is provided on the material box for making the filter rod fall straight into the arc groove, the correction mechanism includes a push plate slidably connected to the material box through a sliding rod, a baffle located on the upper side of the material box is obliquely installed on the top of the push plate, a connecting plate is connected to the end of the sliding rod facing away from the push plate, and a driving member for driving the connecting plate to move horizontally back and forth is installed on the outside of the material box.

[0014] Preferably, a scale is connected to the outer side wall of the mounting frame, and an indicator plate is connected to the side surface of the shaping plate.

[0015] A cutting method for processing cigarette filter rods, comprising the following steps:

[0016] S1, feeding, putting the filter rods to be cut into the material box, and the filter rods fall into the arc groove on the drum;

[0017] S2, transporting filter rods, controlling the belt conveyor assembly to work, the belt conveyor assembly drives the rotating shaft to rotate, the rotating shaft drives the rotating shaft to drive the rotating drum to rotate, and the rotating drum rotates to transport the filter rods one by one to the cutting knife through the arc groove;

[0018] S3, cutting, the rotating shaft rotates to drive the cutting knife to rotate and cut the filter rod;

[0019] S4, inserting the filter rod, the filter rod after cutting continues to rotate with the drum and aligns with the discharge port at the bottom of the drum, and the filter rod after cutting then falls through the discharge port onto the belt conveyor assembly;

[0020] S5, rounding: the belt conveyor assembly works to convey the cut filter rod to the lower side of the shaping plate. The friction between the filter rod and the shaping plate causes the filter rod to roll in the trough on the conveyor belt to round the cut filter rod.

[0021] S6. Collect the filter rods and place a collection container under the belt conveyor assembly to collect the filter rods after being rounded.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. Through the cooperation of the cylinder, the rotating drum and the arc groove, the filter rods can be transported to the cutting knife one by one for cutting, and the filter rods after cutting can be automatically placed on the belt conveyor assembly, achieving the effect of continuous filter rod cutting work and greatly improving the filter rod cutting efficiency.

[0024] 2. The filter rods after slitting can be conveyed to the lower side of the shaping plate through the belt conveyor assembly. The friction between the filter rods and the shaping plate can make the filter rods roll in the material trough on the conveyor belt to round the slit filter rods, thereby improving the quality of the filter rods and making them meet the subsequent processing and use standards.

[0025] 3. Through the coordination of the arc plate, cylinder body, piston rod, push rod, spring and manifold, the air in the suction cup can be automatically sucked away so that the suction cup can suck the filter rod to be cut, so as to limit the filter rod and improve the stability of the filter rod during cutting, avoid displacement of the filter rod during cutting, so as to improve the cutting accuracy of the filter rod; and the air can be automatically pushed into the suction cup so that the suction cup can automatically release the filter rod after cutting.

[0026] 4. The filter rod can be positioned by the arc guide plates on both sides so that the filter rod falls into the arc groove in the center, thereby improving the positioning accuracy of the filter rod during the slitting process, ensuring that the position of each filter rod is consistent during slitting, avoiding uneven slitting due to position deviation, and further improving the slitting accuracy of the filter rod.

[0027] 5. The driving member can drive the push plate to move horizontally and reciprocatingly to correct the filter rod in the material box, so that the filter rod can fall straight and accurately into the arc groove to avoid the filter rod falling obliquely on the drum, thereby ensuring that the filter rod can be smoothly transported to the cutting knife for cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention from the front perspective.

[0029] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention from a rear side perspective.

[0030] Figure 3 It is a schematic diagram of the installation of the driving mechanism of the present invention.

[0031] Figure 4 It is a schematic diagram of the three-dimensional structure of the driving mechanism of the present invention.

[0032] Figure 5 It is a partial three-dimensional structural schematic diagram of the driving mechanism of the present invention.

[0033] Figure 6 It is a three-dimensional structural schematic diagram of the mounting frame, shaping plate and screw rod I of the present invention.

[0034] Figure 7 This is a schematic diagram of the installation of the positioning and centering mechanism of the present invention.

[0035] Figure 8 It is a schematic diagram of the three-dimensional structure of the positioning and centering mechanism of the present invention.

[0036] Fig. 9 It is a schematic diagram of the three-dimensional structure of the correction mechanism of the present invention.

[0037] Fig.10 The figure is a schematic diagram of the installation of the scale and the indicator plate of the present invention.

[0038] In the figure: 1-frame, 2-drum, 3-mounting drum, 4-rotating shaft, 5-cutting knife, 6-rotating shaft, 7-drum, 71-arc groove, 72-knife groove, 8-material box, 9-belt conveyor assembly, 91-connecting shaft, 92-conveyor belt, 93-motor, 10-material trough, 11-suction cup, 121-cylinder, 122-piston rod, 123-pushing rod, 124-spring, 125-manifold, 126-arc plate, 13-mounting frame, 14-shaping plate, 15-screw rod I, 16-gear set, 17-belt transmission assembly, 181-arc guide plate, 182-positioning plate, 183-screw rod II, 191-sliding rod, 192-push plate, 193-connecting plate, 194-baffle, 195-driving member, 20-scale, 21-indicator plate, 22-guide plate. DETAILED DESCRIPTION

[0039] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0040] A cutting device for processing cigarette filter rods, see Figure 1-Figure 6, including a frame 1, a cylinder 2 is connected to the left side of the top of the frame 1, and a mounting cylinder 3 is connected to the left side of the cylinder 2. The mounting cylinder 3 is rotatably connected to a rotating shaft 4, and six cutting knives 5 are evenly connected to the rotating shaft 4 along the axial direction. The cutting knife 5 is located in the mounting cylinder 3, and a rotating shaft 6 is rotatably connected to the cylinder 2. The rotating shaft 6 is connected to a rotating cylinder 7 located in the cylinder 2. Thirty-two arc grooves 71 for carrying filter rods are evenly spaced along the circumferential direction on the rotating cylinder 7. The gap between the circumferential side wall of the rotating cylinder 7 and the circumferential inner wall of the cylinder 2 is smaller than the diameter of the filter rod, ensuring that the filter rods are transported to the cutting knife 5 one by one. Six knife grooves 72 that are compatible with the cutting knife 5 are evenly spaced along the axial direction on the rotating cylinder 7. The top of the cylinder 2 is connected to a material box 8, and a belt is provided in the frame 1. Conveying assembly 9, the belt conveying assembly 9 includes two left and right connecting shafts 91 rotatably connected to the frame 1, and a conveyor belt 92 located in the frame 1 is sleeved between the two connecting shafts 91 through a pulley. A motor 93 is installed on the left front side of the frame 1, and the output shaft of the motor 93 is connected to the left connecting shaft 91. The bottom of the cylinder 2 is provided with a discharge port for dropping the cut filter rods onto the conveyor belt 92. A mounting frame 13 is connected to the upper part of the frame 1, and the mounting frame 13 is located on the right side of the cylinder 2. A shaping plate 14 that can be lifted and lowered is slidably connected to the mounting frame 13 through a guide rod. A screw rod Ⅰ15 is rotatably connected to the front side of the mounting frame 13, and the screw rod Ⅰ15 is threadedly connected to the shaping plate 14. The left side of the shaping plate 14 is designed as an inclined surface. The inclined surface can guide the filter rod so that the filter rod can move smoothly to the lower side of the shaping plate 14 for rounding. A support plate is connected to the bottom of the mounting frame 13. The support plate is located inside the conveyor belt 92 to support the conveyor belt 92 to prevent the conveyor belt 92 from collapsing downward, thereby supporting the cut filter rod and ensuring that the filter rod remains in close contact with the shaping plate 14 for effective rounding. The conveyor belt 92 is provided with material troughs 10 for carrying the filter rods at even intervals. The material troughs 10 can stably convey the cut filter rods to the right to prevent the filter rods from being stuck or piled up on the conveyor belt 92 when the shaping plate 14 is rounded, thereby ensuring that the filter rod rounding operation is carried out smoothly. The left connecting shaft 91 is connected to the rotating shaft 4 through the belt drive assembly 17 to drive the rotating shaft 6 to drive The cutting knife 5 rotates to cut the filter rod, and the belt transmission assembly 17 is composed of a large pulley, a small pulley and a belt. The large pulley is connected to the rear side of the left connecting shaft 91, and the small pulley is connected to the rear side of the rotating shaft 4. The belt sleeve is between the large pulley and the small pulley, and the large pulley drives the small pulley to rotate to achieve acceleration, so as to ensure that the cutting knife 5 can rotate at high speed to complete the cutting of the filter rod. The rotating shaft 4 and the rotating shaft 6 are connected through the gear set 16 to drive the rotating shaft 6 to drive the rotating drum 7 to rotate and transport the filter rod to the cutting knife 5 for cutting. The gear set 16 is composed of a small gear and a large gear. The small gear is connected to the front side of the rotating shaft 4, and the large gear is connected to the front side of the rotating shaft 6. The small gear and the large gear are meshed, and the small gear drives the large gear to rotate to achieve deceleration.To ensure that the drum 7 rotates slowly to stably transport the filter rods to the cutting knife 5 for cutting, the lower right part of the frame 1 is connected to a guide plate 22 located on the lower side of the conveyor belt 92. The guide plate 22 can catch the filter rods that fall from the conveyor belt 92 and guide the filter rods to the lower right for subsequent collection of the filter rods.

[0041] The filter rod to be cut is put into the material box 8, and the filter rod falls into the arc groove 71 on the rotating drum 7. The control motor 93 drives the connecting shaft 91 on the left to drive the conveyor belt 92 to rotate. The connecting shaft 91 on the left rotates through the belt transmission assembly 17 to drive the rotating shaft 4 to drive the cutting knife 5 to rotate. The rotating shaft 4 rotates through the gear set 16 to drive the rotating shaft 6 to rotate. The rotating shaft 6 rotates to drive the rotating drum 7 to rotate. The rotating drum 7 rotates through the arc groove 71 to transport the filter rod to the cutting knife 5 for cutting. After the slitting is completed, the filter rod follows the rotating drum 7 and continues to rotate to align with the discharge port at the bottom of the drum 2. After the slitting is completed, the filter rod falls into the material trough 10 on the conveyor belt 92 under the action of gravity. After the slitting is completed, the filter rod is then transported to the right by the conveyor belt 92. During the slitting process, the filter rod contacts the shaping plate 14 during the conveying to the right. The friction between the filter rod and the shaping plate 14 causes the filter rod to roll in the material trough 10 on the conveyor belt 92 to round the filter rod after the slitting. The rounding process can ensure the regular shape of the filter rod, improve the quality of the filter rod, and make it meet the subsequent processing and use standards. The screw rod Ⅰ15 can be rotated to adjust the upper and lower positions of the shaping plate 14 to adjust the height of the shaping plate 14 to adapt to filter rods of different diameters. In this way, the device can transport the filter rods one by one to the cutting knife 5 for cutting through the cooperation of the cylinder 2, the rotating drum 7 and the arc groove 71, and can automatically put the filter rods after cutting onto the belt conveyor assembly 9, thereby achieving the effect of being able to continuously perform the filter rod cutting work and greatly improving the filter rod cutting efficiency; the filter rods after cutting can be transported to the lower side of the shaping plate 14 through the belt conveyor assembly 9, and the friction between the filter rod and the shaping plate 14 can make the filter rod roll in the material trough 10 on the conveyor belt 92, so as to realize the rounding of the filter rods after cutting, thereby improving the quality of the filter rods and making them meet the subsequent processing and use standards.

[0042] See also Figure 3-Figure 5, each arc groove 71 is connected with two groups of front and rear suction cups 11, each group of suction cups 11 has three suction cups, and the three suction cups 11 in each group are spaced from front to back, and the suction cups 11 and the cutting knife 5 are staggered front and back. The drum 7 is provided with a driving mechanism for driving the suction cups 11 to suck and release the filter rod, and the driving mechanism includes a cylinder body 121 and a piston rod 122. The drum 7 is embedded with two groups of front and rear cylinder bodies 121, each group of cylinder bodies 121 has eight cylinder bodies 121, and the eight cylinder bodies 121 in each group are evenly distributed along the circumference of the drum 7. Each cylinder body 121 is slidably connected with a piston rod 122, and the movable cylinder body 121 is provided with a piston rod 122. The plug rod 122 extends out of the rotating drum 7 and is connected to a push rod 123. A spring 124 is sleeved on the piston rod 122. The two ends of the spring 124 are respectively connected to the push rod 123 and the rotating drum 7. Four manifolds 125 are connected to each cylinder body 121. The manifolds 125 are connected to the corresponding suction cups 11. Arc plates 126 are connected to the inner walls of the front and rear sides of the cylinder body 2. The top of the arc plate 126 adopts a slope design. The push rod 123 can contact the slope of the top of the arc plate 126 on the same side as the rotating drum 7, and is pushed by the slope of the top of the arc plate 126 to move in the direction close to the rotating drum 7.

[0043] When the drum 7 rotates, the upper parts thereof are driven to rotate, and the push rod 123 rotates accordingly until it contacts the inclined surface at the top of the arc plate 126, and the push rod 123 is squeezed by the inclined surface on the arc plate 126, so that the push rod 123 moves toward the direction close to the drum 7, and the spring 124 is compressed accordingly, thereby driving the piston rod 122 to move and suck the air in the suction cup 11 into the cylinder body 121 through the manifold 125, so that the suction cup 11 sucks the filter rod that needs to be cut, so as to limit the filter rod, improve the stability of the filter rod during cutting, and avoid displacement of the filter rod during cutting, thereby improving the filter rod cutting accuracy. When the push rod 123 rotates with the drum 7 until it is separated from the arc plate 126, the push rod 123 can be moved and reset in the direction away from the drum 7 under the reset action of the spring 124, thereby driving the piston rod 122 to move and reset, so as to push the air in the cylinder 121 into the suction cup 11 through the manifold 125, thereby causing the suction cup 11 to release the cut filter rod, so that the cut filter rod can fall onto the conveyor belt 92.

[0044] See also Figure 7-Figure 8A positioning and centering mechanism for positioning and centering the filter rod is provided in the cylinder 2, and the positioning and centering mechanism includes an arc guide plate 181, a positioning plate 182 and a screw rod Ⅱ183. The front and rear sides of the cylinder 2 are slidably connected with sliding rods, and the ends of the two sliding rods close to each other are connected with an arc guide plate 181 located in the cylinder 2, and the arc guide plate 181 is located on the upper side of the rotating drum 7 and fits with the rotating drum 7. The two arc guide plates 181 are respectively located on the upper sides of the two arc plates 126, and the top of the arc guide plate 181 is a conical surface, so as to smoothly guide the filter rod downward into the arc groove 71. The tops of the two arc guide plates 181 are connected with a positioning plate 182 located in the material box 8, and the front and rear sides of the cylinder 2 are threadedly connected with screw rods Ⅱ183, and the two screw rods Ⅱ183 are rotatably connected to the two arc guide plates 181 respectively.

[0045] The filter rod can be positioned by the front and rear two arc guide plates 181 so that the filter rod falls in the center into the arc groove 71, improving the positioning accuracy of the filter rod during the slitting process, ensuring that each filter rod is in the same position during slitting, avoiding uneven slitting due to position deviation, and further improving the slitting accuracy of the filter rod. By rotating the screw rod II 183, the screw rod II 183 can drive the arc guide plate 181 to adjust the position of the front and rear positions, so as to adjust the distance between the two arc guide plates 181 to accommodate filter rods of different lengths.

[0046] See also Fig. 9 A correction mechanism for making the filter rod fall straight into the arc groove 71 is provided on the material box 8, and the correction mechanism includes two front and rear sliding rods 191 slidably connected to the right side wall of the material box 8, a push plate 192 located in the material box 8 is connected between the left ends of the two sliding rods 191, and the push plate 192 is located to the right of the positioning plate 182. A baffle 194 located on the upper side of the material box 8 is installed in an inclined manner on the top of the push plate 192 with the left side lower and the right side higher, and a connecting plate 193 located outside the material box 8 is connected between the right ends of the two sliding rods 191. A driving member 195 for driving the connecting plate 193 to reciprocate left and right is installed on the front outer wall of the material box 8. The driving member 195 is an electric push rod, and the push rod on the electric push rod is connected to the connecting plate 193.

[0047] The control driving member 195 drives the connecting plate 193 to move back and forth left and right. The reciprocating movement of the connecting plate 193 drives the push plate 192 to move back and forth left and right through the sliding rod 191. The reciprocating movement of the push plate 192 can correct the left and right position of the filter rod in the material box 8, so that the filter rod can fall into the arc groove 71 straight and accurately, so as to avoid the filter rod falling obliquely on the rotating drum 7, thereby ensuring that the filter rod can be smoothly transported to the cutting knife 5 for cutting; the filter rod can be blocked by the baffle 194 to prevent the filter rod from falling into the right side of the push plate 192 and being squeezed and deformed by the push plate 192 when the push plate 192 moves left and right.

[0048] See also Fig.10A scale 20 is connected to the outer wall of the front side of the mounting frame 13, and an indicator plate 21 is connected to the front side of the shaping plate 14. The indicator plate 21 is located on the right side of the scale 20. The indicator plate 21 is slidably matched with the mounting frame 13. The height of the indicator plate 21 can be measured by the scale 20 to measure the height of the shaping plate 14, so that the staff can quickly and accurately adjust the shaping plate 14 to a suitable height.

[0049] A cutting method for processing cigarette filter rods, comprising the following steps:

[0050] S1, feeding, the filter rods to be cut are put into the material box 8, and the filter rods then fall into the arc groove 71 on the rotating drum 7;

[0051] S2, transporting filter rods, controlling the belt conveyor assembly 9 to work, the belt conveyor assembly 9 drives the rotating shaft 4 to rotate, the rotating shaft 4 drives the rotating shaft 6 to drive the rotating drum 7 to rotate, and the rotating drum 7 rotates to transport the filter rods one by one to the cutting knife 5 through the arc groove 71;

[0052] S3, cutting, the rotating shaft 4 rotates to drive the cutting knife 5 to rotate and cut the filter rod;

[0053] S4, inserting the filter rod, the filter rod after cutting continues to rotate with the drum 7 to align with the discharge port at the bottom of the drum 2, and the filter rod after cutting then falls through the discharge port onto the belt conveyor assembly 9;

[0054] S5, rounding, the belt conveyor assembly 9 works to convey the cut filter rod to the right to the lower side of the shaping plate 14, and the friction between the filter rod and the shaping plate 14 causes the filter rod to roll in the material trough 10 on the conveyor belt 92 to round the cut filter rod;

[0055] S6. Collect the filter rods. Place a collection container at the lower right side of the belt conveyor assembly 9 to collect the filter rods after being rounded.

[0056] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A cutting device for processing cigarette filter rods, characterized in that: The machine comprises a frame (1), the top of which is connected to a cylinder (2), one side of which is connected to a mounting cylinder (3), the mounting cylinder (3) being rotatably connected to a rotating shaft (4), a plurality of cutting knives (5) located in the mounting cylinder (3) being connected to the rotating shaft (4) at even intervals in the axial direction, a rotating cylinder (7) being rotatably connected to the cylinder (2) via a rotating shaft (6), a plurality of arc grooves (71) for carrying filter rods being evenly spaced in the circumferential direction on the rotating cylinder (7), the gap between the circumferential side wall of the rotating cylinder (7) and the circumferential inner wall of the cylinder (2) being smaller than the diameter of the filter rod, a plurality of knife grooves (72) matching the cutting knives (5) being evenly spaced in the axial direction on the rotating cylinder (7), the top of the cylinder (2) being connected to a material box ( 8), a belt conveyor assembly (9) is arranged in the frame (1), a discharge port for dropping the cut filter rods onto the belt conveyor assembly (9) is provided at the bottom of the cylinder (2), a mounting frame (13) is connected to the upper part of the frame (1), a shaping plate (14) for rounding the filter rods is arranged in the mounting frame (13), a screw rod I (15) is rotatably connected to the mounting frame (13), the screw rod I (15) is threadedly connected to the shaping plate (14), the belt conveyor assembly (9) is transmission-connected to the rotating shaft (4) to drive the rotating shaft (4) to drive the cutting knife (5) to rotate and cut the filter rods, and the rotating shaft (4) is transmission-connected to the rotating shaft (6) to drive the rotating shaft (6) to drive the rotating drum (7) to rotate and transport the filter rods to the cutting knife (5) for cutting.

2. A cutting device for cigarette filter rod processing according to claim 1, characterized in that: The conveyor belt (92) of the belt conveyor assembly (9) is provided with material grooves (10) for carrying filter rods at even intervals.

3. A cutting device for cigarette filter rod processing according to claim 2, characterized in that: The side of the shaping plate (14) close to the mounting cylinder (3) is designed as an inclined surface so as to smoothly guide the filter rod to the lower side of the shaping plate (14) for rounding.

4. A cutting device for cigarette filter rod processing according to claim 3, characterized in that: A plurality of suction cups (11) are connected at intervals in each arc-shaped groove (71), and a driving mechanism for driving the suction cups (11) to suck and release the filter rod is provided on the rotating drum (7).

5. A cutting device for cigarette filter rod processing according to claim 4, characterized in that: The driving mechanism comprises a cylinder body (121) and a piston rod (122). A plurality of cylinder bodies (121) are embedded and evenly spaced along the circumferential direction on the rotating cylinder (7). A piston rod (122) is slidably connected inside each cylinder body (121). The piston rod (122) extends out of the rotating cylinder (7) and is connected to a push rod (123). A spring (124) is connected between the push rod (123) and the rotating cylinder (7). Each cylinder body (121) is connected to a plurality of manifolds (125). (125) is connected to the suction cup (11) corresponding thereto, and an arc plate (126) is connected to the inner wall of the cylinder (2). The top of the arc plate (126) is designed with an inclined surface. The push rod (123) can contact the inclined surface of the top of the arc plate (126) as the rotating cylinder (7) rotates, and is pushed by the inclined surface of the top of the arc plate (126) to move in a direction close to the rotating cylinder (7), thereby driving the piston rod (122) to move and draw the air in the suction cup (11) into the cylinder (121).

6. A cutting device for cigarette filter rod processing according to claim 5, characterized in that: A positioning and centering mechanism for positioning and centering the filter rod is provided in the barrel (2), the positioning and centering mechanism comprising two arc-shaped guide plates (181) arranged in the barrel (2) and capable of approaching each other, the arc-shaped guide plates (181) being located on the upper side of the rotating drum (7) and being in contact with the rotating drum (7), the top of the arc-shaped guide plates (181) being a conical surface, the tops of the two arc-shaped guide plates (181) being connected to positioning plates (182) located in the material box (8), the two sides of the barrel (2) being threadedly connected to screw rods II (183), the two screw rods II (183) being rotatably connected to the two arc-shaped guide plates (181) respectively.

7. A cutting device for cigarette filter rod processing according to claim 6, characterized in that: The material box (8) is provided with a correction mechanism for making the filter rod fall straight into the arc-shaped groove (71), the correction mechanism comprising a push plate (192) slidably connected to the material box (8) through a sliding rod (191), a baffle (194) located on the upper side of the material box (8) is obliquely installed on the top of the push plate (192), a connecting plate (193) is connected to the end of the sliding rod (191) facing away from the push plate (192), and a driving member (195) for driving the connecting plate (193) to move horizontally back and forth is installed outside the material box (8).

8. The cutting device for cigarette filter rod processing according to claim 1, characterized in that: A scale (20) is connected to the outer side wall of the mounting frame (13), and an indicator plate (21) is connected to the side surface of the shaping plate (14).

9. A cutting method for processing cigarette filter rods, based on the cutting device for processing cigarette filter rods according to claim 2, characterized in that: The following steps are involved: S1, feeding, feeding the filter rods to be cut into the material box (8), and the filter rods then fall into the arc-shaped grooves (71) on the rotating drum (7); S2, transporting filter rods, controlling the belt conveyor assembly (9) to work, the belt conveyor assembly (9) working to drive the rotating shaft (4) to rotate, the rotating shaft (4) rotating to drive the rotating shaft (6) to drive the rotating drum (7) to rotate, the rotating drum (7) rotates to transport the filter rods one by one to the cutting knife (5) through the arc groove (71); S3, cutting, the rotating shaft (4) rotates to drive the cutting knife (5) to rotate and cut the filter rod; S4, inserting the filter rod, the filter rod after cutting is followed by the rotating drum (7) and continues to rotate to align with the discharge port at the bottom of the drum body (2), and the filter rod after cutting is then dropped through the discharge port onto the belt conveyor assembly (9); S5, rounding, the belt conveyor assembly (9) works to convey the cut filter rod to the lower side of the shaping plate (14), and the friction between the filter rod and the shaping plate (14) causes the filter rod to roll in the material trough (10) on the conveyor belt (92), so as to round the cut filter rod; S6, collecting the filter rods, placing a collection container below the belt conveyor assembly (9) to collect the filter rods after being rounded.

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