Filter rod removal equipment

Abstract

The present invention relates to the field of acetate fiber. A filter rod paper removal device comprises a frame, a conveying device, a paper cutting device, a defilament stripping device and a negative pressure device; the conveying device is mounted on the frame, the conveying direction of the conveying device is along a first direction, the conveying device is provided with a filter rod slot, the extension direction of the filter rod slot intersects with the first direction, and the filter rod slot passes through the conveying device at least at one end of its extension direction; the paper cutting device comprises a cutting knife, the cutting knife is movably mounted on the frame along a second direction, the second direction is parallel to the extension direction of the filter rod slot or is formed at an acute angle; the defilament stripping device comprises a defilament stripping member, the defilament stripping member is movably mounted on the frame along a third direction, the third direction is parallel to the extension direction of the filter rod slot or is formed at an acute angle; the cutting knife and the defilament stripping member are both located above the conveying device, and the defilament stripping device is located downstream of the paper cutting device along the first direction; an air hole is provided on the slot wall of the filter rod slot, the air hole is connected to the negative pressure chamber of the negative pressure device, and can realize automatic paper removal of the filter rod and automatic recovery of fiber filaments.

Description

Technical Field

[0001] The invention relates to the field of acetate fiber, and in particular to a filter rod paper removal device. Background Art

[0002] A large number of discarded filter rods are generated during the production and testing of cigarette filters. The existing technology for treating discarded filter rods mainly includes the following two methods: (1) incineration; (2) removing the molding paper on the surface of the discarded filter rods and recycling the acetate fiber tow.

[0003] When the second method is used to treat the waste filter rods, the prior art usually uses manual removal of the shaping paper, which is inefficient and costly. Summary of the invention

[0004] One of the purposes of the present invention is to provide a filter rod paper removal device.

[0005] In order to achieve the above-mentioned purpose, the filter rod paper removal device provided by the present invention includes a frame, a conveying device, a paper cutting device, a wire stripping device and a negative pressure device; the conveying device is installed on the frame, the conveying direction of the conveying device is along the first direction, the conveying device is provided with a filter rod slot, the extension direction of the filter rod slot intersects with the first direction, and the filter rod slot passes through the conveying device at least at one end of its extension direction; the paper cutting device includes a cutting knife, the cutting knife is movably installed on the frame along a second direction, the second direction is parallel to the extension direction of the filter rod slot or an acute angle is formed therebetween; the wire stripping device includes a wire stripping member, the wire stripping member is movably installed on the frame along a third direction, the third direction is parallel to the extension direction of the filter rod slot or an acute angle is formed therebetween; the cutting knife and the wire stripping member are both located above the conveying device, and along the first direction, the wire stripping device is located downstream of the paper cutting device; an air hole is opened on the bottom wall of the filter rod slot, and the air hole is connected to the negative pressure chamber of the negative pressure device; the conveying device, the paper cutting device and the wire stripping device are all driven and operated by a power unit.

[0006] As can be seen from the above, the present invention is conducive to realizing automatic paper removal of filter rods and recovery of central fiber filaments through the structural design of the filter rod paper removal equipment, which is conducive to improving the fiber filament recovery efficiency and reducing the recovery cost; in addition, the filter rod shaping paper is temporarily fixed on the conveyor belt by negative pressure, which is convenient for the operation of the cutting knife and the stripping piece, and is easy for the shaping paper to leave the conveyor belt in the section without negative pressure.

[0007] A preferred solution is that the conveying device includes a conveyor belt, and the filter rod groove is arranged on the conveying surface of the conveyor belt.

[0008] A further solution is that along the rotational circumference of the conveyor belt, the front side of the filter rod slot has an inclined guide surface, the front end of the inclined guide surface is adjacent to the conveying surface, and the rear end of the inclined guide surface is adjacent to the slot wall surface of the filter rod slot.

[0009] A further solution is that the negative pressure device includes a negative pressure box and an exhaust fan, a negative pressure hole is opened on the top wall of the negative pressure box, the negative pressure cavity is the inner cavity of the negative pressure box, the exhaust fan is connected with the negative pressure cavity, and the negative pressure hole passes through the negative pressure cavity; the negative pressure box is located in the ring of the rotating circumference of the conveyor belt, the air hole passes through along the thickness direction of the conveyor belt to the conveying back side of the conveyor belt, the top wall surface of the negative pressure box is in contact with the conveying back side of the upper side section of the conveyor belt, and the air hole is connected with the negative pressure hole.

[0010] As can be seen from the above, the arrangement of the exhaust fan and the negative pressure box is convenient for generating a strong negative pressure, which is convenient for the filter rod to be firmly fixed in the filter rod slot.

[0011] A further solution is that it also includes an upper hopper, which is fixed to the frame and arranged above the conveying surface of the upper section of the conveyor belt. The lower end of the upper hopper has a downward discharge port, and the discharge port is a strip hole in the length direction along the extension direction of the filter rod slot; along the first direction, the wall of the upper hopper located in front of the discharge port is the first wall, and a loading space is formed between the first wall and the conveyor belt; along the normal direction of the conveying surface of the upper section of the conveyor belt, the distance from the upper side wall of the loading space to the conveying surface is less than the diameter of the filter rod, and the distance from the upper side wall of the loading space to the bottom of the filter rod slot is greater than the diameter of the filter rod and less than 2 times the diameter of the filter rod.

[0012] As can be seen from the above, this facilitates automatic loading, which is further beneficial to improving the degree of automation of the filter rod paper removal equipment; and under the action of the inclined guide surface, the loading hopper can feed the fast-running conveyor belt, which is beneficial to improving the working efficiency of the filter rod paper removal equipment.

[0013] Another preferred solution is that the extension direction of the filter rod slot forms an acute angle with the second direction, and / or the extension direction of the filter rod slot forms an acute angle with the third direction.

[0014] As can be seen from the above, this makes it easier for the cutter to have the same direction and speed as the filter rod slot in the first direction during the paper cutting operation. In this way, the conveyor belt does not need to be paused during the paper cutting operation, and the cutter can match the larger transmission rate. Similarly, the movement of the wire stripping piece can match the movement of the conveyor belt, which is beneficial to improve the operating speed of the conveyor belt and the efficiency of the filter rod paper removal equipment.

[0015] Another preferred solution is that the second direction is parallel to the third direction, and the power unit comprises a first linear driving member, which drives the cutting knife and the wire stripping member to reciprocate along the second direction.

[0016] As can be seen from the above, the cutter and the stripping member share a first linear drive member, which is beneficial to simplifying the structure of the filter rod paper removal device, improving the economy, and making the filter rod paper removal device compact.

[0017] A further solution is that the power unit further comprises a second linear drive member, which drives the cutting knife and the wire stripping member to move toward and away from the conveying device.

[0018] As can be seen from the above, this makes it easier for the return movement of the cutting knife and the wire stripping member not to interfere with the conveyor belt.

[0019] Another preferred scheme is that the filter rod groove includes a first groove and a second groove, the angle between the extension direction of the first groove and the second direction is a first angle, the angle between the extension direction of the second groove and the second direction is a second angle, the angle between the extension direction of the first groove and the extension direction of the second groove is a third angle, the first angle and the second angle are both acute angles, and the third angle is equal to the sum of the first angle and the second angle.

[0020] As can be seen from the above, when the transmission speed is fast, the cutter can cut the filter rod in the first slot during the outward journey and cut the filter rod in the second slot during the return journey, which is further beneficial to improving the efficiency of the filter rod removing equipment.

[0021] A further solution is that the second direction is perpendicular to the first direction, and the first angle is equal to the second angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The structure of the filter rod paper removal device of the present invention is Figure 1 ;

[0023] Figure 2 The structure of the filter rod paper removal device of the present invention is Figure 2 ;

[0024] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0025] Figure 4 It is a schematic diagram of the arrangement of the filter rod slots in the optional solution of the filter rod paper removal device of the present invention;

[0026] Figure 5 The schematic diagram of the direction of the cutter travel and the extension direction of the filter rod slot in the optional scheme of the filter rod paper removal device of the present invention Figure 1 ;

[0027] Figure 6 The schematic diagram of the direction of the cutter travel and the extension direction of the filter rod slot in the optional scheme of the filter rod paper removal device of the present invention Figure 2 ;

[0028] Figure 7 The schematic diagram of the direction of the cutter travel and the extension direction of the filter rod slot in the optional scheme of the filter rod paper removal device of the present invention Figure 3 ;

[0029] Figure 8The schematic diagram of the direction of the cutter travel and the extension direction of the filter rod slot in the optional scheme of the filter rod paper removal device of the present invention Figure 4 . DETAILED DESCRIPTION

[0030] The filter rod paper removal device of this embodiment Figures 1 to 5 A unified spatial rectangular coordinate system is used to represent the orientation relationship of each component. In this embodiment, the first direction is along the positive direction of the Y axis, and the second direction, the third direction and the extension direction of the filter rod slot are all along the X axis.

[0031] Please refer to Figures 1 to 3 The filter rod paper removing device includes a frame 1, a conveying device 2, a hopper 3, a paper cutting device, a wire stripping device and a negative pressure device 5. In this embodiment, the paper cutting device and the wire stripping device are combined into an integral paper cutting and wire stripping device 4. In other embodiments of the present invention, the paper cutting device and the wire stripping device can be set separately.

[0032] Please refer to Figure 1 and Figure 2 The conveying device 2 includes a conveyor belt 21, a driving pulley 22, a driven pulley 23 and a driving motor 24. The conveyor belt 21 is tensioned by the driving pulley 22 and the driven pulley 23. The driving motor 24 drives the driving pulley 22 to rotate, and then drives the conveyor belt 21 to rotate circumferentially. The rotation axis of the driving pulley 22 and the rotation axis of the driven pulley 23 are both along the X-axis direction. The driving pulley 22 and the driven pulley 23 are distributed along the Y-axis direction. The driving pulley 22 is located on the positive side of the Y-axis of the driven pulley 23. The movement direction of the conveying surface 211 of the upper section of the conveyor belt 21 is the conveying direction of the conveying device 2, and the conveying direction of the conveying device 2 is along the positive direction of the Y-axis.

[0033] Please refer to Figures 1 to 3 A plurality of filter rod slots 212 are provided on the conveying surface 211 of the conveyor belt 21. The plurality of filter rod slots 212 are evenly distributed along the running circumference of the conveyor belt 21. The filter rod slots 212 penetrate the conveyor belt 21 along the X-axis direction. The bottom of the filter rod slots 212 has air holes 213 that penetrate the conveyor belt 21 along the thickness direction of the conveyor belt 21.

[0034] Optionally, in other embodiments of the present invention, the filter rod slot 212 may not completely penetrate the conveyor belt 21 , for example, the negative end of the filter rod slot 212 on the X-axis penetrates the conveyor belt 21 , while the positive end of the filter rod slot 212 on the X-axis does not penetrate the conveyor belt 21 .

[0035] Alternatively, see Figure 4 In other embodiments of the present invention, the distribution pattern of the filter rod slots 212 on the conveyor belt 21 may also be: two filter rod slots 212 form a group, the spacing between the two filter rod slots 212 in the same group in the operating circumferential direction of the conveyor belt 21 is the same, and each group of filter rod slots 212 is evenly distributed in the operating circumferential direction of the conveyor belt 21.

[0036] Please refer to Figure 2 The upper hopper 3 includes a first side plate 31, a second side plate 32, a third side plate 33 and a fourth side plate 34, the fourth side plate 34 is a first wall, the first side plate 31 and the third side plate 33 are distributed along the X-axis direction, the first side plate 31 and the third side plate 33 are both flat plates with the main surface normal along the X-axis direction, the distance between the first side plate 31 and the third side plate 33 in the X-axis direction is slightly larger than the length of the filter rod (not shown in the figure), for example, the distance between the first side plate 31 and the third side plate 33 in the X-axis direction is 1 mm larger than the length of the filter rod.

[0037] The second side plate 32 and the fourth side plate 34 are distributed along the Y-axis direction, and along the negative direction of the Z-axis from top to bottom, the distance between the second side plate 32 and the fourth side plate 34 in the Y-axis direction is reduced, and the distance between the negative end of the Z-axis of the second side plate 32 and the negative end of the Z-axis of the fourth side plate 34 in the Y-axis direction is equal to the diameter of the filter rod. Optionally, the distance between the negative end of the Z-axis of the second side plate 32 and the negative end of the Z-axis of the fourth side plate 34 in the Y-axis direction may also be slightly larger than the diameter of the filter rod, for example, 0.5 mm larger than the diameter of the filter rod.

[0038] Along the Z axis, please refer to Figure 1 and Figure 2 The distance between the fourth side plate 34 and the bottom of the filter rod groove 212 is equal to 1.1 times the diameter of the filter rod, and the distance between the fourth side plate 34 and the conveying surface 211 of the upper side section of the conveyor belt 21 is equal to 0.5 times the diameter of the filter rod, so that a loading space 8 is formed between the fourth side plate 34 and the conveyor belt 21, and the upper side wall of the loading space 8 is the bottom end wall of the fourth side plate 34.

[0039] It should be noted that, in the present embodiment, when describing the dimensions of the filter rod slot 212 , the filter rod slot 212 on the conveying surface 211 of the upper section of the conveyor belt 21 is used as the description object.

[0040] Of course, the relationship between the various dimensional parameters of the upper hopper 3 and the filter rod diameter can be adjusted as long as the following requirements are met: when no filter rod slot 212 passes through the upper hopper 3, the filter rod will not move with the conveyor belt 21, and when the filter rod slot 212 passes through the upper hopper 3, the filter rod slot 212 can take away a filter rod.

[0041] Before loading, filter rods to be removed are placed in the upper hopper 3, with the length direction of the filter rods along the X-axis direction. The lowest filter rod in the upper hopper 3 is half exposed from the upper hopper 3 and supported on the conveying surface 211 of the upper section of the conveyor belt 21.

[0042] When performing the loading operation, the filter rod slot 212 arrives under the upper hopper 3 with the conveyor belt 21. When the filter rod slot 212 arrives under the upper hopper 3, the filter rod at the lower end of the upper hopper 3 loses the support of the conveying surface 211 and falls into the filter rod slot 212. Due to the size of the filter rod slot 212, each filter rod slot 212 can only accommodate one filter rod when passing through the upper hopper 3, and due to the distance relationship between the filter rod slot 212, the conveying surface 211, and the upper hopper 3, the filter rod that falls into the filter rod slot 212 is no longer restricted by the upper hopper 3, and the filter rod that falls into the filter rod slot 212 can move with the conveyor belt 21.

[0043] Of course, if the filter rod slot 212 of the corresponding size is set only according to the filter rod diameter, the time for the filter rod slot 212 to pass under the upper hopper 3 is short. During the process of the filter rod slot 212 passing through the upper hopper 3, the filter rod may not reach the bottom of the filter rod slot 212 in time, which will lead to poor feeding of the filter rod and problems in the operation of the equipment. Preferably, please refer to Figure 3 Along the rotational circumference of the conveyor belt 21, the front side of the filter rod slot 212 has an inclined guide surface 2123, the front end of the inclined guide surface 2123 is smoothly connected to the conveying surface 211, and the rear end of the inclined guide surface 2123 is smoothly connected to the slot wall surface of the filter rod slot 212. The inclined guide surface 2123 makes the slot bottom surface of the filter rod slot 212 and the conveying surface 211 in front of it gradually transition. In this way, when the filter rod slot 212 passes under the upper hopper 3, the filter rod can gradually descend under the guidance of the inclined guide surface 2123 until it reaches the slot bottom of the filter rod slot 212, ensuring that a filter rod can be smoothly taken away after the filter rod slot 212 passes through the upper hopper 3.

[0044] Please refer to Figures 1 to 3 The cutting and de-filamenting device 4 includes a cutting knife 44 and a de-filamenting member 43. The cutting knife 44 and the de-filamenting member 43 are both located above the conveyor belt 21. The upper hopper 3, the cutting knife 44 and the de-filamenting member 43 are sequentially distributed along the positive direction of the Y-axis. The distance between the cutting knife 44 and the de-filamenting member 43 in the Y-axis direction is equal to the distance between adjacent filter rod slots 212. The de-filamenting member 43 is a rod.

[0045] Please refer to Figures 1 to 3 The wire-cutting and wire-stripping device 4 also includes a first cylinder 41 and a second cylinder 42. The first cylinder 41 includes a first cylinder body 411 and a first piston rod 412. The second cylinder 42 includes a second cylinder body 421 and a second piston rod 422. The first cylinder body 411 is fixed to the frame 1, and the second cylinder body 421 is fixed to the first piston rod 412. The cutting knife 44 and the wire-stripping member 43 are both installed on the second piston rod 422. The telescopic direction of the first piston rod 412 is along the X-axis direction, and the telescopic direction of the second piston rod 422 is along the Z-axis direction.

[0046] For details, please refer to Figure 3The negative end of the second piston rod 422 in the Z-axis direction is provided with a tool holder 423 , the cutting knife 44 is mounted on the negative side of the Y-axis of the tool holder 423 , and the wire stripping member 43 is mounted on the positive side of the Y-axis of the tool holder 423 .

[0047] Alternatively, the first cylinder 41 and the second cylinder 42 may also be replaced by other linear drive devices in the prior art, such as a ball screw device, a gear rack device, etc.

[0048] The movement of the cutting knife 44 and the stripping piece 43 includes a forward movement and a return movement. The initial positions of the cutting knife 44 and the stripping piece 43 in the forward movement are located on the positive side of the X-axis of the conveyor belt 21, and along the Z-axis direction, the distance between the cutting knife 44 and the conveying surface 211 of the upper section of the conveyor belt 21 is 0.2 times the diameter of the filter rod, and the distance between the stripping piece 43 and the bottom of the filter rod groove 212 is 0.4 times the diameter of the filter rod; the forward movement of the cutting knife 44 and the stripping piece 43 includes: driven by the first cylinder 41 to move along the negative direction of the X-axis across the conveyor belt 21; the return movement of the cutting knife 44 and the stripping piece 43 includes: first, the second cylinder 42 drives the cutting knife 44 and the stripping piece 43 to move up 0.5 times the diameter of the filter rod, and then the first cylinder 41 drives the cutting knife 44 and the stripping piece 43 to move along the positive direction of the X-axis across the conveyor belt 21, and finally the second cylinder 42 drives the cutting knife 44 and the stripping piece 43 to move down 0.5 times the diameter of the filter rod.

[0049] Of course, the de-threading member 43 of the present embodiment extends into the filter rod groove 212 during the outward movement, which is conducive to the smooth extraction of the fiber filaments and to ensuring a good de-threading effect. However, the de-threading member 43 often corresponds to the conveying surface 211 of the conveyor belt 21 during the return movement. If the de-threading member 43 directly returns in the positive direction along the X-axis, the return movement of the de-threading member 43 will interfere with the conveyor belt 21. Therefore, the present embodiment provides a second cylinder 42, so that before the return movement of the de-threading member 43, the second cylinder 42 drives the de-threading member 43 to move upward by a certain distance (the above-mentioned 0.5 times the filter rod diameter), and after the de-threading member 43 crosses the conveyor belt 21 during the return movement, the second cylinder 42 drives the de-threading member 43 to move downward by the same distance to realize the entire return process, which is conducive to avoiding interference between the movement of the conveyor belt 21 and the de-threading member 43.

[0050] Alternatively, in other embodiments of the present invention, the telescopic direction of the first piston rod 412 may be along the Z-axis direction, and the telescopic direction of the second piston rod 422 may be along the X-axis direction, which can also achieve the purpose of the invention.

[0051] Optionally, in other embodiments of the present invention, the outward movement process of the stripping piece 43 can also be set not to extend into the filter rod groove 212, and the stripping piece 43 remains above the conveying surface 211 of the upper section of the conveyor belt 21 during the entire movement process. In this way, the second cylinder 42 can be omitted, and all movements of the cutting knife 44 and the stripping piece 43 are driven by the first cylinder 41. Of course, in this way, the stripping piece 43 only acts on the fiber filaments exposed from the filter rod groove 212, and the stripping effect of the stripping piece 43 may not be as good as that of the present embodiment.

[0052] Specifically, the cutting edge of the cutting knife 44 is located on the negative side of the X-axis.

[0053] Preferably, please refer to Figure 3 The blade side of the cutting knife 44 has serrations, which makes it easier for the cutting knife 44 to cut the shaping paper smoothly.

[0054] Specifically, the conveyor belt 21 has a wire collecting frame 6 on the negative side of the X-axis, and a paper receiving frame 7 on the positive side of the Y-axis. Both the wire collecting frame 6 and the paper receiving frame 7 are located below the conveyor belt 21, and the wire collecting frame 6 and the wire stripping piece 43 are located in the same section of the conveyor belt 21 in the Y-axis direction.

[0055] Specifically, the cutting knife 44 of this embodiment is fixedly mounted on the knife holder 423. Optionally, in other embodiments of the present invention, the cutting knife 44 can also be mounted on the knife holder 423 via a motor (not shown in the figure), and the motor drives the cutting knife 44 to rotate around an axis parallel to the Y-axis direction.

[0056] Please refer to Figure 1 and Figure 2 The negative pressure device 5 includes a negative pressure box 51 and an exhaust fan 52, which is connected to the negative pressure box 51. The exhaust fan 52 sucks the air flow in the negative pressure box 51 to form a negative pressure in the negative pressure box 51. The negative pressure box 51 is arranged in the loop of the conveyor belt 21, that is, the negative pressure box 51 is located in the loop of the rotating circumference of the conveyor belt 21, and the negative pressure box 51 is located below the cutting knife 44 and the stripping member 43. The top surface of the negative pressure box 51 is a plane, and a negative pressure hole (not shown in the figure) is provided on the top wall surface of the negative pressure box 51, which passes through the inner cavity of the negative pressure box 51 (that is, the negative pressure cavity). The top surface of the negative pressure box 51 is in contact with the conveying back side of the upper side section of the conveyor belt 21, and the negative pressure hole is connected to the air hole 213 at the bottom of the filter rod slot 212.

[0057] When in operation, the exhaust fan 52 of the negative pressure device 5 draws the airflow of the negative pressure box 51 outward, thereby generating negative pressure in the negative pressure box 51. The negative pressure chamber is connected to the filter rod slot 212 through the negative pressure hole and the air hole 213. Therefore, the negative pressure in the negative pressure chamber can act on the filter rod in the filter rod slot 212, so that the filter rod moved to the cutting knife 44 and the stripping piece 43 section can be fixed in the filter rod slot 212 under the suction of the negative pressure box 51.

[0058] Alternatively, the negative pressure device 5 may also be provided with a Venturi tube to generate negative pressure according to the Venturi effect.

[0059] When the filter rod paper removing device is in operation, the driving motor 24 drives the conveyor belt 21 to operate. When a filter rod slot 212 passes the lower end of the upper hopper 3, the filter rod falls into the filter rod slot 212 and moves along the positive direction of the Y axis with the operation of the conveyor belt 21. The filter rod passes through the cutter 44 and the stripping piece 43 in sequence during the positive movement along the Y axis. Due to the setting of the negative pressure device 5, the filter rod is tightly fixed to the bottom of the filter rod slot 212 under the action of the negative pressure device 5 when passing through the cutter 44 and the stripping piece 43. When the filter rod moves to the cutter 44, the cutter 44 removes the filter rod during the outward movement. The shaping paper on the rod is cut; the filter rod with the shaping paper cut continues to move along the positive direction of the Y axis, and when the filter rod moves to the stripping piece 43, the stripping piece 43 pushes the fiber filaments in the filter rod out of the shaping paper along the negative direction of the X axis during the outward movement, and the fiber filaments in the filter rod fall from the negative side of the X axis of the conveyor belt 21 to the wire collecting frame 6; the shaping paper after stripping continues to move toward the positive direction of the Y axis with the conveyor belt 21, and the shaping paper is also separated from the negative pressure device 5 after leaving the working station of the stripping piece 43, and the shaping paper moves to the positive end of the Y axis with the conveyor belt 21 and falls into the paper receiving frame 7 under the action of gravity.

[0060] Since the conveying direction of the conveyor belt 21 is different from the paper cutting direction of the cutter 44, the filter rod may leave the paper cutting station along with the conveyor belt 21 before the paper cutting is completed during the paper cutting operation of the filter rod by the cutter 44, resulting in the filter rod failing to complete the paper cutting process smoothly. Similarly, the filter rod may also fail to complete the wire stripping process smoothly. In order to solve this problem, the present embodiment proposes the following two solutions:

[0061] Solution 1: When the filter rod paper removal equipment of this solution is in operation, the conveyor belt 21 is set to intermittent action. For example, when the cutter 44 performs a cutting operation and the wire stripping piece 43 performs a wire stripping operation, the conveyor belt 21 is suspended, that is, when the cutter 44 and the wire stripping piece 43 are in the outward process, the conveyor belt 21 is suspended, and after the cutting operation of the cutter 44 and the wire stripping operation of the wire stripping piece 43 are completed, the conveyor belt 21 resumes operation; in this way, the movement of the conveyor belt 21 and the cutter 44 are not performed at the same time, thereby avoiding the adverse effect of the operation of the conveyor belt 21 on the operation of the cutter 44 and the wire stripping piece 43.

[0062] Of course, frequent starts and stops have an adverse effect on the service life of the drive motor 24 and cause the filter rod removal device to operate poorly, so this embodiment also proposes the following solution 2.

[0063] Solution 2: When the filter rod paper removal equipment of this solution is in operation, the conveyor belt 21 maintains a low and uniform speed, and the operating speed of the cutter 44 and the stripping piece 43 during the outward operation is significantly greater than the transmission rate of the conveyor belt 21, so as to ensure that the cutter 44 can always cut the filter rod in the filter rod slot 212 during the entire outward movement, and ensure that the stripping piece 43 is always located in the filter rod slot 212 during the entire outward movement.

[0064] Of course, in Scheme 2, the transmission rate of the conveyor belt 21 is required to be significantly lower than the operating rates of the cutter 44 and the stripping member 43. If the transmission rate of the conveyor belt 21 is too low, the efficiency of the filter rod paper removal device will be reduced. If the operating rates of the cutter 44 and the stripping member 43 are too fast, the driving devices of the cutter 44 and the stripping member 43 will be too demanding, resulting in poor economic efficiency of the equipment. Therefore, other embodiments of the present invention may also adopt the following Scheme 3.

[0065] Option 3: Please refer to Figure 5 , Figure 5 The middle arrow a indicates the outward direction of the cutting knife 44 and the stripping piece 43. In the present embodiment, the outward direction of the cutting knife 44 and the stripping piece 43 is inclined toward the positive side of the Y-axis. The telescopic direction of the first piston rod 412 has an angle of 5° with the X-axis direction. The extension direction of the filter rod groove 212 is along the X-axis direction. During the outward operation, the cutting knife 44 and the stripping piece 43 not only have a component speed along the negative direction of the X-axis, but also have a component speed along the positive direction of the Y-axis. This ensures that the cutting knife 44 moves in the positive direction of the Y-axis with the conveyor belt 21 during the paper cutting process, which is beneficial to ensure that the conveyor belt 21, the cutting knife 44 and the stripping piece 43 maintain a faster operating speed at the same time, which is beneficial to ensuring the smooth operation of the filter rod paper removal equipment and improving the operating efficiency of the filter rod paper removal equipment.

[0066] Of course, in option 3, please refer to Figure 6 , Figure 6 The middle arrow b indicates the outward direction of the cutter 44 and the stripping member 43. In this scheme, the extension direction of the filter rod slot 212 is set to have an angle of 5° with the X-axis direction, and the telescopic direction of the first piston rod 412 is set to be along the X-axis direction; or the extension direction of the filter rod slot 212 and the telescopic direction of the first piston rod 412 are set not to be along the X-axis direction, and the extension direction of the filter rod slot 212 and the telescopic direction of the first piston rod 412 are maintained at an angle of 5°. During the operation of the conveyor belt 21, the negative end of the filter rod slot 212 in the X-axis reaches the paper cutting position of the cutter 44 before the positive end of the X-axis. In this way, during the paper cutting operation, the cutter 44 can also ensure that the filter rod conveyor belt 21, the cutter 44 and the stripping member 43 maintain a faster operating speed at the same time.

[0067] Optionally, the angle between the extension direction of the filter rod slot 212 and the extension direction of the first piston rod 412 can be specifically set according to the relationship between the conveying rate of the conveyor belt 21 and the extension rate of the first piston rod 412, which will not be repeated here.

[0068] Optionally, in other embodiments of the present invention, the cutting knife 44 can also be set to have blades in both directions of the positive direction of the X-axis and the negative direction of the X-axis, and the second cylinder 42 can be cancelled. The first cylinder 41 drives the cutting knife 44 and the wire stripping member 43 to move back and forth in the X-axis direction, and the cutting knife 44 passes through the filter rod slot 212 on both the outward and return journeys of the movement in the X-axis direction, and cuts the molded paper of the filter rods in different filter rod slots 212; similarly, the wire stripping member 43 passes through different filter rod slots 212 on the outward and return journeys, and performs wire stripping operations on different filter rods, which is conducive to simplifying the structure of the filter rod paper removal device and improving the working efficiency of the filter rod paper removal device. Of course, in this way, some fiber filaments come out from the positive side of the X-axis of the conveyor belt 21, and other fiber filaments come out from the negative side of the X-axis, and two wire collecting frames 6 or a larger wire collecting frame 6 are required.

[0069] Preferably, please refer to Figure 7 and Figure 8 In other embodiments of the present invention, in the scheme where the cutting knife 44 cuts paper in both the forward and return strokes and the stripping member 43 strips wire in both the forward and return strokes, the telescopic direction of the first piston rod 412 is preferably along the X-axis direction, and the filter rod slot 212 is divided into two types, the two filter rod slots 212 are respectively a first slot 2121 and a second slot 2122, the extension direction of the first slot 2121 has an angle of 5° with the X-axis direction, the extension direction of the second slot 2122 has an angle of 5° with the X-axis direction, and the first slot 2121 and the second slot 212 2 is in the opposite direction relative to the X-axis direction, that is, the extending direction of the first groove 2121 and the extending direction of the second groove 2122 have an included angle of 10°, so that when the conveyor belt 21 and the first cylinder 41 are both running at a high speed, the outward movement of the cutting knife 44 and the stripping member 43 can be set to be performed along the extending direction of the first groove 2121, and the return movement of the cutting knife 44 and the stripping member 43 can be set to be performed along the extending direction of the second groove 2122, which is further conducive to improving the operating efficiency of the filter rod paper removal device.

[0070] For details, please refer to Figure 7 and Figure 8 , Figure 7 and Figure 8Both represent the two operating cycles of the cutting knife 44 and the wire stripping member 43, c1 and d1 respectively represent the outward movement of the cutting knife 44 and the wire stripping member 43 in the first cycle, c2 and d2 respectively represent the return movement of the cutting knife 44 and the wire stripping member 43 in the first cycle, c3 and d3 respectively represent the outward movement of the cutting knife 44 and the wire stripping member 43 in the second cycle, c4 and d4 respectively represent the return movement of the cutting knife 44 and the wire stripping member 43 in the second cycle.

[0071] The driving motor 24 , the exhaust fan 52 , the first cylinder 41 and the second cylinder 42 of the present embodiment are all power units.

[0072] Optionally, in other embodiments of the present invention, the cutting knife 44 and the wire stripping member 43 may also be provided with power respectively, and the cutting knife 44 and the wire stripping member 43 are driven and controlled separately. When the cutting knife 44 and the wire stripping member 43 are provided with power units respectively, the paper cutting direction of the cutting knife 44 and the wire stripping direction of the wire stripping member 43 may be different. For example, the paper cutting direction of the cutting knife 44 and the wire stripping direction of the wire stripping member 43 both have an angle of 5° with the X-axis direction, but the outward direction of the paper cutting of the cutting knife 44 is toward the negative direction of the X-axis, and the outward direction of the wire stripping of the wire stripping member 43 is toward the positive direction of the X-axis. At this time, the reciprocating direction of the paper cutting of the cutting knife 44 and the reciprocating direction of the wire stripping of the wire stripping member 43 have an angle of 10°. Of course, it is preferred that the cutting knife 44 and the wire stripping member 43 are driven by the same power unit, which is conducive to a simple structure.

[0073] Specifically, in this embodiment, the drive motor 24 can be set to a fixed speed, and the first cylinder 41 and the second cylinder 42 can be set to periodically extend and retract at a fixed frequency to achieve coordinated action of the conveyor belt 21, the cutting knife 44 and the stripping piece 43. Of course, in other embodiments of the present invention, a sensor can also be used to detect whether a filter rod slot 212 reaches the cutting knife 44 and the stripping piece 43. For example, an infrared sensor aimed at the conveyor belt 21 can be used to detect the position of the filter rod slot 212 to achieve precise control of the action of the cutting knife 44 and the stripping piece 43. The position detection of the filter rod slot 212 can be carried out using existing technology, which will not be repeated here.

[0074] Alternatively, in other embodiments of the present invention, the conveying device 2 may not use a conveyor belt, for example, a chain drive may be used, and a plurality of conveying plates may be arranged along the rotating circumference of the transmission chain, with each transmission plate distributed at intervals, the conveying plates being fixed on the links of the transmission chain, and the filter rod slots being set on the conveying plates. Of course, this is not conducive to using a loading hopper to automatically load the filter rod slots.

[0075] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Filter rod paper removal equipment, characterized by: It includes a frame, a conveying device, a paper cutting device, a wire stripping device and a negative pressure device; The conveying device is installed on the frame, the conveying direction of the conveying device is along the first direction, the conveying device has a filter rod slot, the extension direction of the filter rod slot forms an acute angle with the first direction, and the filter rod slot passes through the conveying device at least at one end of the extension direction; The paper cutting device comprises a cutting knife, and the cutting knife is movably mounted on the frame along a second direction, and the second direction forms an acute angle with the extending direction of the filter rod slot; The wire stripping device comprises a wire stripping member, which is movably mounted on the frame along a third direction, wherein the third direction forms an acute angle with the extension direction of the filter rod slot; The cutting knife and the wire stripping member are both located above the conveying device, and along the first direction, the wire stripping device is located downstream of the paper cutting device; An air hole is provided on the bottom wall of the filter rod slot, and the air hole is connected to the negative pressure chamber of the negative pressure device; The conveying device, the paper cutting device and the wire stripping device are all driven by a power unit.

2. The filter rod removal device according to claim 1, characterized in that: The conveying device comprises a conveying belt, and the filter rod slot is arranged on the conveying surface of the conveying belt.

3. The filter rod removal device according to claim 2, characterized in that: Along the rotational circumferential direction of the conveyor belt, the front side of the filter rod slot has an inclined guide surface, the front end of the inclined guide surface is adjacent to the conveying surface, and the rear end of the inclined guide surface is adjacent to the slot wall surface of the filter rod slot.

4. The filter rod removal device according to claim 2, characterized in that: The negative pressure device comprises a negative pressure box and an exhaust fan, the negative pressure cavity is the inner cavity of the negative pressure box, the exhaust fan is connected to the negative pressure cavity, a negative pressure hole is opened on the top wall of the negative pressure box, and the negative pressure hole passes through the negative pressure cavity; The negative pressure box body is located in the circumferential ring of the conveyor belt, the air hole penetrates along the thickness direction of the conveyor belt to the conveying back side of the conveyor belt, the top wall surface of the negative pressure box body is in contact with the conveying back side of the upper section of the conveyor belt, and the air hole is connected to the negative pressure hole.

5. The filter rod removal device according to any one of claims 2 to 4, characterized in that: It also includes an upper hopper, which is fixed to the frame and arranged above the conveying surface of the upper section of the conveyor belt. The lower end of the upper hopper has a downward discharge port, and the discharge port is a strip-shaped hole whose length direction is along the extension direction of the filter rod slot; Along the first direction, the wall of the loading hopper located in front of the discharge port is a first wall, and a loading space is formed between the first wall and the conveyor belt; Along the normal direction of the conveying surface of the upper section of the conveyor belt, the distance from the upper side wall of the feeding space to the conveying surface is less than the diameter of the filter rod, and the distance from the upper side wall of the feeding space to the bottom of the filter rod slot is greater than the diameter of the filter rod and less than 2 times the diameter of the filter rod.

6. The filter rod removal device according to any one of claims 1 to 4, characterized in that: The second direction is parallel to the third direction, and the power unit comprises a first linear driving member, which drives the cutting knife and the wire stripping member to reciprocate along the second direction.

7. The filter rod removal device according to claim 6, characterized in that: The power unit further comprises a second linear drive member, which drives the cutting knife and the wire stripping member to move toward and away from the conveying device.

8. The filter rod removal device according to any one of claims 1 to 4, characterized in that: The filter rod slot includes a first slot and a second slot, the angle between the extension direction of the first slot and the second direction is a first angle, the angle between the extension direction of the second slot and the second direction is a second angle, the angle between the extension direction of the first slot and the extension direction of the second slot is a third angle, the first angle and the second angle are both acute angles, and the third angle is equal to the sum of the first angle and the second angle.

9. The filter rod removal device according to claim 8, characterized in that: The second direction is perpendicular to the first direction, and the first angle is equal to the second angle.

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