A multi-component composite filter rod switching device

Abstract

The present invention relates to the field of filter rod multi-component composite forming devices, and specifically to a multi-component composite filter rod switching device, comprising a machine body, a cutting mechanism, a transport mechanism and a reversing mechanism, wherein the cutting mechanism is fixed on the machine body, a transport mechanism is installed on the machine body below a material outlet of the cutting mechanism, a reversing mechanism is installed on the machine body in the transport direction of the transport mechanism, the cutting mechanism is indexed by a mechanical indexing mechanism, the reversing mechanism takes material by a one-way airflow negative pressure in the transport direction of the transport mechanism, and after taking material, the reversing mechanism rotates horizontally by 90° and then discharges the material to the outer end of the machine body by closing the one-way airflow. The beneficial effects of the present invention are: firstly, the production efficiency and production quality are improved; secondly, the indexing accuracy is improved, so that the short filter rod after the rod is broken can be stably output from the horizontal guide groove; and thirdly, the space occupied is small.

Description

Technical Field

[0001] The invention relates to the field of filter rod multi-component composite forming devices, and in particular to a multi-component composite filter rod switching device. Background Art

[0002] The prior art, such as the ternary composite cigarette filter rod production device in CN109043656A, uses three cutting mechanisms to cut different long filter rods into short filter rods respectively. The three different short filter rods pass through three transport troughs and finally converge into one transport trough, and are finally formed into composite filter rods by a filter rod forming machine. However, this ternary composite cigarette filter rod production device has the following disadvantages: first, the transport trough has an inflection point, which makes it easy for short filter rods to get stuck at the inflection point during transportation; second, the rotating wheel with the sample slot in the cutting mechanism is driven at intervals after being encoded by the encoder on the dividing motor. Since it is easily affected by external conditions, it produces instability in current or voltage, thereby affecting the division accuracy; third, due to the inflection point, more transport troughs are required during multi-composite, and the space occupied is larger. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes a multi-component composite filter rod switching device.

[0004] This multi-component composite filter rod switching device includes a body, a cutting mechanism, a transport mechanism and a reversing mechanism. The cutting mechanism is fixed on the body, a transport mechanism is installed on the body below the discharge port of the cutting mechanism, and a reversing mechanism is installed on the body in the transport direction of the transport mechanism. It is characterized in that the cutting mechanism is indexed by a mechanical indexing mechanism, and the reversing mechanism takes material by a unidirectional airflow negative pressure in the transport direction of the transport mechanism. After taking material, the reversing mechanism rotates horizontally 90° and then discharges the material to the outer end of the body by closing the unidirectional airflow.

[0005] Preferably, the cutting mechanism includes a hopper, an arc-shaped cutting plate, a rotary cutter and a rotating wheel with a material groove. The hopper is fixed on the machine body, the rotating wheel with the material groove is located at the discharge port of the hopper, several rotating wheels with material grooves are keyed to the rotating shaft, and cutting gaps for the rotary cutter to cut materials are left between adjacent rotating wheels with material grooves. An arc-shaped cutting plate is fixed on the hopper at the feeding point of the hopper and the rotating wheel with material grooves, and the arc-shaped cutting plate is provided with arc-shaped cutting grooves corresponding to the number of cutting gaps. The rotary cutter passes through the arc-shaped cutting grooves and cuts into the feeding cutting gap. The rotary cutter is driven by a motor installed in the machine body.

[0006] Preferably, the bottom surface of the hopper at the feeding position close to the rotating wheel with material trough is an inclined arc surface, and the inclination direction of the inclined arc surface is the same as the rotation direction of the rotating wheel with material trough.

[0007] Preferably, the mechanical indexing mechanism includes an indexing box, a dial wheel and a groove wheel, the indexing box is fixed on the machine body, the dial wheel and the groove wheel are installed in the indexing box, there are two dial teeth on the dial wheel that are symmetrically arranged at 180°, and there are four dial grooves on the groove wheel that are evenly arranged at a central angle of 90°, the dial teeth and the dial grooves move in coordination, the dial wheel is driven by the motor in the machine body, the output end of the groove wheel outputs power through the gear and the gear reduction mechanism, and the output shaft of the gear reduction mechanism is keyed to the rotating wheel with the material trough.

[0008] Preferably, the transport mechanism includes a chain transport mechanism, an anti-gap transport mechanism and a belt transport mechanism. The feed end of the chain transport mechanism is located directly below the rotating wheel with the material trough, the discharge end of the chain transport mechanism is located below the feed end of the anti-gap transport mechanism, the feed end of the belt transport mechanism is located below the discharge end of the anti-gap transport mechanism, a reversing mechanism is fixed on the machine body in the transport direction of the belt transport mechanism, a lever is fixed on the chain of the chain transport mechanism, the anti-gap transport mechanism includes a roller with spiral teeth on the surface, the chain transport mechanism, the anti-gap transport mechanism and the belt transport mechanism are driven by a motor in the machine body, and horizontal guide grooves are arranged on the machine body below the anti-gap transport mechanism and above the chain transport mechanism.

[0009] Preferably, a pressing plate is fixed on the horizontal guide groove at the output end of the gap-eliminating transport mechanism, and an arc-shaped groove is provided on the bottom surface of the pressing plate for the cut filter rod to pass through.

[0010] Preferably, the reversing mechanism includes a rotating frame, in which several feeding arms are evenly fixed at a central angle of 90°. The feeding arms are fixed to a rotating sleeve located at the center of the rotating frame through horizontal arms. The rotating sleeve is driven by a motor in the machine body to rotate. A support shaft is fixed in the center of the rotating sleeve in the machine body, and a cam is fixed on the support shaft. There are vents on the wall of the rotating sleeve, a horizontal ventilation pipe in the horizontal arm, and a vertical ventilation pipe in the feeding arm. The vents, the horizontal ventilation pipe and the vertical ventilation pipe are connected. There is a one-way valve structure in the vertical ventilation pipe. When the one-way valve structure is in a normally open state, there is negative pressure in the feeding arm, and the closing of the one-way valve structure is controlled by the contact between the cam and the one-way valve structure.

[0011] Preferably, the cam includes a circular wheel with two protrusions on the outer ring of the circular wheel, and the two protrusions are arranged at a central angle of 90°. One protrusion contacts the one-way valve structure of the material picking arm rotated above the belt conveyor mechanism, and the material picking arm rotated above the belt conveyor mechanism contacts the other protrusion after rotating 90°. The one-way valve structure includes a sliding air block slidably embedded in the vertical ventilation duct, and the sliding air block has an air passage connected to the bottom and the side. A spring push block is embedded in the top of the sliding air block, and a rotating pressure block is hinged in the material picking arm to the right of the spring push block. The rotating pressure block can rotate and squeeze the spring push block. A spring push rod is slidably connected to the top surface of the horizontal arm, and the left end of the spring push rod contacts the rotating pressure block, and the right end of the spring push rod can contact the protrusion.

[0012] Preferably, the top of the spring push block is an arc-shaped surface, the cross-section of the rotating pressure block is triangular, a corner of the rotating pressure block that squeezes the spring push block is a horizontal section with a through hole, and the right side of the rotating pressure block contacts the left end of the spring push rod.

[0013] Preferably, a bearing is fixed to the right end of the spring push rod, and the bearing can contact the protrusion.

[0014] Preferably, an arc-shaped guide groove is provided on the top surface of the body below the circular wheel for the bottom of the sliding air block to slide.

[0015] The beneficial effects of the present invention are: firstly, it solves the problem that short filter rods are easily stuck at the turning point during transportation, thereby improving production efficiency and production quality; secondly, the rotating wheel with a sample slot in the cutting mechanism is indexed by a mechanical indexing mechanism and then intermittently moves, thereby improving the indexing accuracy, so that the short filter rods after the rods are broken can be stably output from the horizontal guide groove; thirdly, the gap-eliminating transport mechanism can allow the short filter rods after the rods are broken to be arranged at equal distances; fourthly, multiple devices of the present invention are arranged in parallel, and can be directly discharged onto a conveyor belt, and then formed by a filter rod forming machine, occupying less space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 . Stereoscopic diagram of the present invention

[0017] Figure 2 . Figure 1 Enlarged image A

[0018] Figure 3 . Figure 1 Enlarged image B

[0019] Figure 4 .Right view of the present invention

[0020] Figure 5 .Mechanical indexing mechanism stereogram

[0021] Figure 6 .Schematic diagram of mechanical indexing mechanism structure

[0022] Figure 7 .3D diagram of the reversing mechanism

[0023] Figure 8 .Schematic diagram of the material taking arm structure

[0024] exist Figure 1 and Figure 81. Machine body, 1.1. Horizontal guide groove, 1.2. Arc guide groove, 2. Cutting mechanism, 2.1. Hopper, 2.2. Arc cutting plate, 2.2.1 Arc cutting groove, 2.3. Rotating wheel with material groove, 2.4. Cutting gap, 3. Transport mechanism, 3.1. Chain transport mechanism, 3.1.1. Push rod, 3.2. Gap-eliminating transport mechanism, 3.2.1. Roller, 3.2.2. Base, 3.3. Belt transport mechanism, 4. Reversing mechanism, 4.1. Rotating frame, 4.2. Retrieving arm, 4.2.1. Vertical ventilation pipe, 4.2.2. One-way valve structure, 4.2.2.1, sliding air block, 4.2.2.2, spring push block, 4.2.2.3, rotating pressure block, 4.2.2.4, spring push rod, 4.2.2.5, bearing, 4.3, horizontal arm, 4.3.1, horizontal ventilation duct, 4.4, rotating sleeve, 4.4.1, ventilation hole, 4.5, supporting shaft, 4.6, cam, 4.6.1, circular wheel, 4.6.2, protrusion, 5, mechanical indexing mechanism, 5.1, indexing box, 5.2 dial wheel, 5.3, groove wheel, 5.3.1, dial groove, 5.3.2, gear, 6, pressure plate, 6.1, arc groove.

[0025] exist Figure 1 and Figure 8 In the present invention, the multi-component composite filter rod switching device comprises a body 1, a cutting mechanism 2, a transport mechanism 3 and a reversing mechanism 4, wherein the cutting mechanism 2 is fixed on the body 1, a transport mechanism 3 is installed on the body 1 below the discharge port of the cutting mechanism 2, and a reversing mechanism 4 is installed on the body 1 in the transport direction of the transport mechanism 3. The cutting mechanism 2 is indexed by a mechanical indexing mechanism 5, and the reversing mechanism 4 takes material by a one-way airflow negative pressure in the transport direction of the transport mechanism 3. After taking material, the reversing mechanism 4 rotates horizontally 90° and then discharges the material to the outer end of the body 1 by closing the one-way airflow.

[0026] The cutting mechanism 2 includes a hopper 2.1, an arc-shaped cutting blade 2.2, a rotary cutter (not shown) and a rotating wheel with a material slot 2.3. The hopper 2.1 is fixed to the machine body 1. The rotating wheel with a material slot 2.3 is located at the discharge port of the hopper 2.1. Four rotating wheels with material slots 2.3 are keyed to the rotating shaft. A cutting gap 2.4 for the rotary cutter (not shown) to cut materials is left between adjacent rotating wheels with material slots 2.3. An arc-shaped cutting blade 2.2 is fixed to the hopper 2.1 at the feeding position of the hopper 2.1 and the rotating wheel with material slots 2.3. The arc-shaped cutting plate 2.2 is provided with arc-shaped cutting grooves 2.2.1 corresponding to the number of cutting gaps 2.4. The rotating cutter (not shown) passes through the arc-shaped cutting grooves 2.2.1 and cuts into the cutting gap 2.4. The rotating cutter (not shown) is driven by a motor (not shown) installed in the body 1. This structure is convenient for adjusting the cutting distance and when replacement is needed, only the problematic material groove rotor 2.3 needs to be replaced. The arc-shaped cutting plate 2.2 plays a guiding role while supporting the filter rod, so that the filter rod cutting quality is higher.

[0027] The bottom surface of the hopper 2.1 near the feeding point of the material trough wheel 2.3 is an inclined arc surface, and the inclination direction of the inclined arc surface is the same as the direction of the material trough wheel 2.3. The inclined arc surface facilitates pressing the filter rod into the material trough and prevents the material trough wheel 2.3 from bringing multiple filter rods to the rotating cutter (not shown) at one time.

[0028] The mechanical indexing mechanism 5 comprises an indexing box 5.1, a thumbwheel 5.2 and a groove wheel 5.3. The indexing box 5.1 is fixed to the machine body 1, and the thumbwheel 5.2 and the groove wheel 5.3 are mounted in the indexing box 5.1. The thumbwheel 5.2 has two teeth (not shown) arranged symmetrically at 180°, and the groove wheel 5.3 has four grooves 5.3.1 arranged evenly at a central angle of 90°. The teeth (not shown) cooperate with the grooves 5.3.1 for movement, and the thumbwheel 5.2 is driven by the motor (not shown) in the machine body 1. The output end of the groove wheel 5.3 cooperates with the gear reduction mechanism (not shown) to output power through the gear 5.3.2. The output shaft of the gear reduction mechanism (not shown) is keyed to the rotating wheel 2.3 with the material trough. This form of mechanical indexing has high indexing accuracy and prevents the short filter rod from being unable to be horizontally dialed out after being cut off.

[0029] The transport mechanism 3 includes a chain transport mechanism 3.1, a gap-eliminating transport mechanism 3.2 and a belt transport mechanism 3.3. The chain transport mechanism 3.1 and the belt transport mechanism 3.3 are arranged on the side of the machine body 1. The gap-eliminating transport mechanism 3.2 is fixed to the machine body 1 through a base 3.2.2. The feeding end of the chain transport mechanism 3.1 is located directly below the rotating wheel 2.3 with a material trough. The discharging end of the chain transport mechanism 3.1 is located below the feeding end of the gap-eliminating transport mechanism 3.2. The feeding end of the belt transport mechanism 3.3 is located below the discharging end of the gap-eliminating transport mechanism 3.2. The belt transport mechanism 3.3 is located below the feeding end of the gap-eliminating transport mechanism 3.2. In the transport direction, a reversing mechanism 4 is fixed on the machine body 1, a lever 3.1.1 is fixed on the chain of the chain transport mechanism 3.1, and the gap-eliminating transport mechanism 3.2 includes a roller 3.2.1 with spiral teeth (not shown) arranged on the surface. The chain transport mechanism 3.1, the gap-eliminating transport mechanism 3.2 and the belt transport mechanism 3.3 are driven by a motor (not shown) in the machine body 1. A horizontal guide groove 1.1 is arranged on the machine body 1 below the gap-eliminating transport mechanism 3.2 and above the chain transport mechanism 3.1. The gap-eliminating transport mechanism 3.2 can arrange the short filter rods after cutting and output them at a required distance.

[0030] A pressing plate 6 is fixed on the horizontal guide groove 1.1 at the output end of the gap-eliminating transport mechanism 3.2. An arc groove 6.1 is provided on the bottom surface of the pressing plate 6 for the cut filter rod to pass through, so as to prevent the short filter rod at the output end of the gap-eliminating transport mechanism 3.2 from tilting.

[0031] The reversing mechanism 4 comprises a rotating frame 4.1, which is circular, and four feeding arms 4.2 are evenly fixed on the inner wall of the rotating frame 4.1 at a central angle of 90°. The feeding arms 4.2 are fixed to a rotating sleeve 4.4 located at the center of the rotating frame 4.1 through a horizontal arm 4.3. The rotating sleeve 4.4 is driven by a motor (not shown) in the body 1 to rotate. A support shaft 4.5 is fixed in the body 1 at the center of the rotating sleeve 4.4, and a cam 4.6 is fixed on the support shaft 4.5. There are vent holes 4.4.1 on the wall of the rotating sleeve 4.4, and a horizontal ventilation pipe 4.3 is provided in the horizontal arm 4.3. .1, there is a vertical ventilation duct 4.2.1 in the material taking arm 4.2, the ventilation hole 4.4.1, the horizontal ventilation duct 4.3.1 and the vertical ventilation duct 4.2.1 are connected, and there is a one-way valve structure 4.2.2 in the vertical ventilation duct 4.2.1. When the one-way valve structure 4.2.2 is in the normally open state, there is a negative pressure in the material taking arm 4.2, and the one-way valve structure 4.2.2 is controlled to be closed by the contact between the cam 4.6 and the one-way valve structure 4.2.2. Pneumatic suction reversing is adopted to prevent the short filter rod from being damaged. In addition, there is no need for a reversing valve, and only a one-way airflow is needed to realize material taking and releasing.

[0032] The cam 4.6 includes a circular wheel 4.6.1, and there are two protrusions 4.6.2 on the outer ring of the circular wheel 4.6.1. The two protrusions 4.6.2 are arranged at a central angle of 90 degrees. One protrusion 4.6.2 contacts the one-way valve structure 4.2.2 of the material taking arm 4.2 rotated to the top of the belt conveyor mechanism 3.3. The material taking arm 4.2 rotated to the top of the belt conveyor mechanism 3.3 and then rotated 90 degrees to contact the other protrusion 4.6.2. The one-way valve structure 4.2.2 includes a sliding air block 4.2.2.1 that is slidably engaged with the vertical ventilation pipe 4.2.1. The sliding air block 4.2.2.1 has a sliding air block 4.2.2.1 that is connected to the bottom and the side. The bottom surface of the sliding air block 4.2.2.1 is in an arc shape that matches the shape of the short filter rod. A spring push block 4.2.2.2 is embedded on the top of the sliding air block 4.2.2.1. A rotating pressure block 4.2.2.3 is hinged in the feeding arm 4.2 on the right side of the spring push block 4.2.2.2. The rotating pressure block 4.2.2.3 can rotate and squeeze the spring push block 4.2.2.2. The top surface of the horizontal arm 4.3 is slidably connected to a spring push rod 4.2.2.4. The left end of the spring push rod 4.2.2.4 contacts the rotating pressure block 4.2.2.3, and the right end of the spring push rod 4.2.2.4 can contact the protrusion 4.6.2.

[0033] The top of the spring push block 4.2.2.2 is an arc-shaped surface, and the cross-section of the rotating pressure block 4.2.2.3 is triangular. The corner of the rotating pressure block 4.2.2.3 that squeezes the spring push block 4.2.2.2 is a horizontal section with a through hole. The right side of the rotating pressure block 4.2.2.3 contacts the left end of the spring push rod 4.2.2.4. The push of the spring push block 4.2.2.2 is a line contact, and the force is more uniform.

[0034] A bearing 4.2.2.5 is fixed to the right end of the spring push rod 4.2.2.4, and the bearing 4.2.2.5 can contact with the protrusion 4.6.2 to reduce friction and vibration.

[0035] The top surface of the machine body 1 below the circular wheel 4.6.1 is provided with an arc-shaped guide groove 1.2 for the bottom of the sliding air block 4.2.2.1 to slide, so that the sliding air block 4.2.2.1 is closer to the short filter rod, which is convenient for the suction of the short filter rod.

[0036] When in use, the motor (not shown) drives the thumbwheel 5.2 to rotate. The thumbwheel 5.2 rotates one circle, and the groove wheel 5.3 rotates 180°. After the gear reduction mechanism (not shown) changes speed, the material groove wheel 2.3 rotates one grid counterclockwise, and after being cut by the rotating cutter (not shown), it falls from the material groove wheel 2.3 to the chain conveyor mechanism 3.1, and is moved to the gap-eliminating conveyor mechanism 3.2 through the lever 3.1.1. It is output to the belt conveyor mechanism 3.3 at equal intervals through the gap-eliminating conveyor mechanism 3.2. The motor (not shown) drives the circular wheel 4.6.1 to rotate clockwise, thereby driving the material picking arm 4.2 to pass through the arc guide groove 1.2 on the body 1. When the material picking arm 4.2 runs above the belt conveyor mechanism 3.3, the spring push rod 4.2.2.4 contacts the protrusion 4.6.2, and the spring push rod 4.2.2.4 contacts the protrusion 4.6.2. The rod 4.2.2.4 pushes the rotating pressure block 4.2.2.3 to rotate, squeezing the spring push block 4.2.2.2. The spring push block 4.2.2.2 drives the sliding air block 4.2.2.1 to move downward while closing the horizontal ventilation duct 4.3.1. When the material taking arm 4.2 leaves the top of the belt conveyor mechanism 3.3, the horizontal ventilation duct 4.3.1 is opened, and the sliding air block 4.2.2.1 generates negative pressure to suck the short filter rod after the rod is broken. After the material taking arm 4.2 rotates 90° clockwise, the spring push rod 4.2.2.4 contacts another protrusion 4.6.2, and the horizontal ventilation duct 4.3.1 is closed. The material taking arm 4.2 that sucks the short filter rod discharges the material to the outer end of the body 1. Multiple devices of the present invention are arranged in parallel, and can be directly discharged onto a conveyor belt, and then compositely formed by the filter rod forming machine.

Claims

1. A multi-component composite filter rod switching device, comprising a body, a cutting mechanism, a transport mechanism and a reversing mechanism, wherein the cutting mechanism is fixed to the body, a transport mechanism is installed on the body below the discharge port of the cutting mechanism, and a reversing mechanism is installed on the body in the transport direction of the transport mechanism, characterized in that: The cutting mechanism is indexed by a mechanical indexing mechanism. In the transport direction of the transport mechanism, the reversing mechanism takes the material through the negative pressure of the one-way airflow. After taking the material, the reversing mechanism rotates horizontally by 90° and then discharges the material to the outer end of the machine body by closing the one-way airflow. The cutting mechanism includes a hopper, an arc-shaped cutting knife plate, a rotary cutting knife and a rotating wheel with a material groove. The hopper is fixed on the machine body. The rotating wheel with a material groove is located at the discharge port of the hopper. Several rotating wheels with material grooves are keyed to the rotating shaft. A cutting gap for the rotary cutting knife to cut the material is left between adjacent rotating wheels with material grooves. An arc-shaped cutting knife plate is fixed on the hopper at the feeding position of the hopper and the rotating wheel with a material groove. The arc-shaped cutting knife plate is provided with a number of corresponding cutting gaps. The arc-shaped cutting knife groove is used for cutting the material into the cutting gap through the arc-shaped cutting knife groove. The rotating cutting knife is driven by a motor installed in the machine body. The transport mechanism includes a chain transport mechanism, an anti-gap transport mechanism and a belt transport mechanism. The feeding end of the chain transport mechanism is located directly below the rotating wheel with the material groove, and the discharging end of the chain transport mechanism is located below the feeding end of the anti-gap transport mechanism. The feeding end of the belt transport mechanism is located below the discharging end of the anti-gap transport mechanism. A reversing mechanism is fixed on the machine body in the transport direction of the belt transport mechanism. A lever is fixed on the chain of the chain transport mechanism. The anti-gap transport mechanism includes a roller with spiral teeth arranged on the surface. The chain transport mechanism, The gap-eliminating transport mechanism and the belt transport mechanism are driven by the motor in the machine body. Horizontal guide grooves are arranged on the machine body below the gap-eliminating transport mechanism and above the chain transport mechanism. The reversing mechanism includes a rotating frame. Several feeding arms are evenly fixed in the rotating frame at a central angle of 90°. The feeding arms are fixed to a rotating sleeve located at the center of the rotating frame through horizontal arms. The rotating sleeve is driven by the motor in the machine body to rotate. A support shaft is fixed in the machine body at the center of the rotating sleeve. A cam is fixed on the support shaft. There are air holes on the wall of the rotating sleeve. There are horizontal ventilation pipes in the horizontal arms. There are vertical ventilation pipes in the feeding arms. The air holes, horizontal ventilation pipes and vertical ventilation pipes are connected. There is a one-way valve structure in the vertical ventilation pipe. When the one-way valve structure is in a normally open state, there is negative pressure in the feeding arm. The closing of the one-way valve structure is controlled by the contact between the cam and the one-way valve structure.

2. A multi-component composite filter rod switching device according to claim 1, characterized in that: The mechanical indexing mechanism includes an indexing box, a thumbwheel and a groove wheel. The indexing box is fixed on the machine body. The thumbwheel and the groove wheel are installed in the indexing box. There are 2 thumbwheel teeth on the thumbwheel that are symmetrically arranged at 180°, and there are 4 grooves on the groove wheel that are evenly arranged at a central angle of 90°. The thumbwheel teeth and the grooves move in coordination. The thumbwheel is driven by the motor in the machine body. The output end of the groove wheel outputs power through the gear and the gear reduction mechanism. The output shaft of the gear reduction mechanism is keyed to the rotating wheel with the material trough.

3. A multi-component composite filter rod switching device according to claim 1, characterized in that: The bottom surface of the hopper at the feeding position close to the rotating wheel with the material trough is an inclined arc surface, and the inclination direction of the inclined arc surface is the same as the rotation direction of the rotating wheel with the material trough.

4. A multi-component composite filter rod switching device according to claim 1, characterized in that: A pressing plate is fixed on the horizontal guide groove at the output end of the gap-eliminating transport mechanism, and an arc groove is arranged on the bottom surface of the pressing plate for the cut filter rod to pass through.

5. The multi-component composite filter rod switching device according to claim 1, characterized in that: The cam includes a circular wheel with two protrusions on the outer ring of the circular wheel, and the two protrusions are arranged at a central angle of 90°. One protrusion contacts the one-way valve structure of the material picking arm rotated above the belt conveyor mechanism, and the material picking arm rotated above the belt conveyor mechanism contacts the other protrusion after rotating 90°. The one-way valve structure includes a sliding air block slidably embedded in the vertical ventilation pipe, and the sliding air block has an air passage connected to the bottom and the side. A spring push block is embedded in the top of the sliding air block, and a rotating pressure block is hinged in the material picking arm to the right of the spring push block. The rotating pressure block can rotate and squeeze the spring push block. A spring push rod is slidably connected to the top surface of the horizontal arm, and the left end of the spring push rod contacts the rotating pressure block, and the right end of the spring push rod can contact the protrusion.

6. A multi-component composite filter rod switching device according to claim 5, characterized in that: A bearing is fixed to the right end of the spring push rod, and the bearing can contact the protrusion.

7. The multi-component composite filter rod switching device according to claim 5, characterized in that: The top surface of the machine body below the circular wheel is provided with an arc-shaped guide groove for the bottom of the sliding air block to slide.

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