Grading treatment equipment for waste gas of printing machine

Abstract

The invention relates to the field of printing machines, in particular to printing machine waste gas stage treatment equipment which comprises a collecting box, a treatment box and an auxiliary control mechanism. The collecting box is arranged on the printing machine and communicates with the processing box through a pipeline. At least two supports are arranged on the treatment box, two mounting seats are arranged on each support in a sliding mode, the two mounting seats are located on the two sides of the treatment box respectively, and each mounting seat is provided with a mounting roller and a first rotating driver used for driving the mounting roller to rotate; a filter belt is arranged across the mounting rollers, and the two ends of the filter belt are connected with the two mounting rollers respectively; a sealing block is movably arranged on the treatment box; the auxiliary control mechanism is used for controlling the sealing block to move. According to the invention, the function of performing multi-stage treatment on the waste gas of the printing machine is realized, and the problem that the traditional belt type filtering equipment has a leakage hidden danger at the joint when filtering the waste gas is solved.

Description

Technical Field

[0001] This invention relates to the field of printing presses, and more specifically to a printing press exhaust gas classification and treatment device. Background Technology

[0002] Printing presses generate exhaust gases during operation, primarily from the inks, solvents, cleaning agents used in the printing process, and the press itself. To avoid adverse effects from harmful components in the exhaust gases, they need to be collected and treated. However, traditional treatment devices mostly use single-process filtration, which can only perform targeted filtration. When different types of ink are used, the filtration effect on some harmful components in the exhaust gases may be poor, failing to meet emission standards.

[0003] To address this, Chinese Patent Publication No. CN112892108B discloses a printing press exhaust gas treatment device. This device utilizes a primary, secondary, and tertiary treatment mechanism to treat exhaust gases of varying degrees, increasing efficiency. It employs a two-layer filter belt structure to enhance filtration. The filter belt is driven by a conveyor roller, facilitating replacement and cleaning of the section located in the treatment box. During transmission, the filter belt's cleaning roller rotates via a drive mechanism, enabling rapid cleaning of the filter belt. Simultaneously, it rotates the upper cleaning roller, ensuring timely cleaning and increasing cleaning efficiency.

[0004] However, although the surface of the filter belt can be simply cleaned by the cleaning roller, once the adsorbent material has absorbed a lot of impurities, it needs to be replaced in time. Otherwise, the filtration effect will be greatly affected. Furthermore, when using the filter belt for filtration, it is necessary to ensure the sealing of both ends of the filter section. If the exhaust gas leaks at the connection, it will have a significant impact on the working environment. Summary of the Invention

[0005] To address the aforementioned issues, a printing press exhaust gas grading and treatment device is provided. This device solves the problem of potential leakage at the connection points of traditional belt filter equipment when filtering exhaust gas by using a collection box, a treatment box, and an auxiliary control mechanism.

[0006] To address the problems of existing technologies, this invention provides a printing press exhaust gas classification and treatment device, including a collection box, a treatment box, and an auxiliary control mechanism. The collection box is installed on the printing press and is connected to the treatment box via a pipe. The treatment box has at least two supports, each support having two mounting seats slidably mounted on it. The two mounting seats are located on opposite sides of the treatment box, and each mounting seat has a mounting roller and a first rotary driver for driving the mounting roller to rotate. A filter belt is strung across the mounting roller, with both ends of the filter belt connected to the two mounting rollers respectively. A sealing block is movably mounted on the treatment box. The auxiliary control mechanism controls the movement of the sealing block. In operation, after adjusting the position of the filter belt via the first rotary driver, the auxiliary control mechanism controls the sealing block to move closer to the treatment box until the sealing block and the treatment box are tightly fitted together.

[0007] Preferably, the auxiliary control mechanism includes a connecting component and a transmission component; the connecting component is used to connect the filter belt and the sealing block; two mounting seats located on the same bracket are connected by the transmission component; in the working state, when the first rotary driver controls the mounting roller to rotate, the mounting roller pulls the filter belt to move. When the filter belt moves to the designated position, the filter belt is connected to the sealing block through the connecting component, and the filter belt drives the sealing block to move until the sealing block is tightly fitted against the processing box. The sealing block is controlled by the transmission component to abut against the sealing block on the other side of the processing box.

[0008] Preferably, the sealing block has an oblique protrusion, and the outer wall of the processing box has an oblique trapezoidal surface for cooperating with the oblique protrusion.

[0009] Preferably, the connecting assembly includes a first support, a locking block, and a first elastic element; both ends of the filter belt are respectively provided with two connecting belts for connecting with the mounting roller; the first support is disposed on the sealing block, the locking block is slidably mounted on the first support, the side of the locking block near the processing box has an inclined surface, and both ends of the first elastic element are respectively connected to the locking block and the first support; the connecting belt has a locking groove that cooperates with the locking block; in the working state, when the locking block engages with the locking groove, the connecting belt pushes the locking block and the first support to move synchronously, and the first support drives the sealing block to move; when the connecting belt moves away from the processing box, the inner wall of the locking groove squeezes the inclined surface of the locking block, the first elastic element contracts, and the locking block separates from the locking groove.

[0010] Preferably, the transmission assembly includes a connecting rod, a rack, a rotating shaft, and a rotating gear; there are two connecting rods, which are respectively connected to the mounting rollers on both sides of the processing box, and the connecting rods are slidably engaged with the processing box; the rack is connected to the connecting rod; the rotating shaft is rotatably mounted on the outer wall of the processing box, the rotating gear is sleeved on the rotating shaft, and both racks are meshed with the rotating gear.

[0011] Preferably, the auxiliary control mechanism includes a reset assembly for controlling the reset of the sealing block. The reset assembly includes a second support, a fixed seat, and a second elastic element. The second support is disposed on the connecting rod. The fixed seat is disposed on the outer wall of the processing box. The two ends of the second elastic element are respectively connected to the second support and the fixed seat.

[0012] Preferably, each filter belt has two detachable adsorption belts for adsorbing impurities in the exhaust gas.

[0013] Preferably, the bracket is provided with an extension mechanism for controlling the movement of the mounting base. The extension mechanism includes a guide rod and a linear drive assembly. The guide rod is disposed on the bracket and slides with the mounting base. The linear drive assembly is disposed on the bracket and is used to drive the mounting base to slide along the guide rod.

[0014] Preferably, the end of the bracket is provided with a distance sensor for detecting the position of the mounting base.

[0015] Preferably, the linear drive assembly includes a second rotary driver and a screw; the second rotary driver is mounted on a bracket, the screw is rotatably mounted on the bracket, and the screw is threadedly connected to the mounting base.

[0016] The advantages of this invention compared to the prior art are: 1. This invention achieves multi-stage treatment of printing press exhaust gas through a collection box, a treatment box, and an auxiliary control mechanism. While using a filter belt for filtration, a sealing block seals the connection between the filter belt and the treatment box, thereby improving the sealing performance of the treatment box while filtering the exhaust gas. This maintains the portability of the filter belt while preventing exhaust gas leakage, thus solving the problem of leakage risks at the connection points in traditional belt filter equipment. In operation, after adjusting the position of the filter belt using the first rotary driver, the auxiliary control mechanism controls the sealing block to move closer to the treatment box until the sealing block and the treatment box are tightly fitted together.

[0017] 2. This invention achieves the function of moving the sealing block via the filter belt through the connecting component and the transmission component, thereby achieving the effect of automatically controlling the movement of the sealing block when the filter belt is moved. When the first rotary driver controls the installation roller to rotate, the installation roller pulls the filter belt to move. When the filter belt moves to the designated position, the filter belt connects to the sealing block through the connecting component, and the filter belt drives the sealing block to move until the sealing block is tightly fitted against the processing box. The sealing block is controlled by the transmission component to abut against the sealing block on the other side of the processing box.

[0018] 3. The present invention realizes the function of moving the sealing block by moving the filter belt through the first support, the locking block, the first elastic element, the connecting belt and the locking groove. At the same time, by setting the inclined surface of the locking block, when the filter belt moves in the opposite direction, it can squeeze the inclined surface of the locking block to push the locking block, compress the first elastic element, so that the locking block moves away from the locking groove, disconnecting the connection between the filter belt and the sealing block. The sealing block itself is elastic and can be reset under the action of elastic force. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a printing press exhaust gas classification and treatment device working in conjunction with a printing press.

[0020] Figure 2 This is a three-dimensional schematic diagram of a printing press exhaust gas classification and treatment device.

[0021] Figure 3 This is a three-dimensional schematic diagram of the treatment box and auxiliary control mechanism in a printing press exhaust gas classification and treatment device.

[0022] Figure 4 This is a three-dimensional schematic diagram of one of the support frames of a printing press exhaust gas grading treatment device when the filter belt is in the unfolded state.

[0023] Figure 5 This is a three-dimensional exploded diagram of the mounting roller, connecting belt, and connecting components in a printing press exhaust gas grading treatment device.

[0024] Figure 6 yes Figure 5 A magnified view of a portion of point A in the middle.

[0025] Figure 7 This is a three-dimensional schematic diagram of the treatment box, connecting components, and transmission components in a printing press exhaust gas classification and treatment device.

[0026] Figure 8 yes Figure 7 A magnified view of a portion of point B in the middle.

[0027] Figure 9 yes Figure 7 A magnified view of a portion of point C.

[0028] Figure 10 This is a cross-sectional three-dimensional schematic diagram of the extension mechanism in a printing press exhaust gas grading treatment device.

[0029] The diagram is labeled as follows: 1-Collection box; 2-Processing box; 21-Bracket; 211-Distance sensor; 22-Mounting base; 221-Mounting roller; 222-First rotary driver; 23-Filter belt; 231-Connecting belt; 2311-Slot; 232-Adsorption belt; 24-Sealing block; 241-Slanted protrusion; 25-Slanted trapezoidal surface; 3-Auxiliary control mechanism; 31-Connecting assembly; 311-First support; 312-Card block; 313-First elastic element; 32-Transmission assembly; 321-Connecting rod; 322-Rack; 323-Rotating shaft; 324-Rotating gear; 33-Reset assembly; 331-Second support; 332-Fixed base; 333-Second elastic element; 4-Extension mechanism; 41-Guide rod; 42-Linear drive assembly; 421-Second rotary driver; 422-Screw; 5-Printing machine. Detailed Implementation

[0030] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0031] Reference Figures 1 to 3 A printing press exhaust gas classification and treatment device includes a collection box 1, a treatment box 2, and an auxiliary control mechanism 3. The collection box 1 is installed on the printing press 5 and is connected to the treatment box 2 through a pipe. The treatment box 2 is provided with at least two supports 21, and each support 21 is slidably provided with two mounting seats 22. The two mounting seats 22 are located on both sides of the treatment box 2, and each mounting seat 22 is provided with a mounting roller 221 and a first rotary driver 222 for driving the mounting roller 221 to rotate. A filter belt 23 is strung across the mounting roller 221, and the two ends of the filter belt 23 are respectively connected to the two mounting rollers 221. A sealing block 24 is movably installed on the treatment box 2. The auxiliary control mechanism 3 is used to control the movement of the sealing block 24. In the working state, after adjusting the position of the filter belt 23 by the first rotary driver 222, the auxiliary control mechanism 3 controls the sealing block 24 to move closer to the treatment box 2 until the sealing block 24 and the treatment box 2 are tightly fitted together.

[0032] This invention treats waste gas through a collection box 1, a treatment box 2, and an auxiliary control mechanism 3. The waste gas is fed from the collection box 1 into the treatment box 2 through a pipeline. After being processed step by step by the multi-layer filter belt 23 inside the treatment box 2, it is discharged, thus realizing the function of multi-stage treatment of the waste gas from the printing press 5. While using the filter belt 23 for filtration, the connection between the filter belt 23 and the treatment box 2 is sealed by the sealing block 24. This improves the sealing performance of the treatment box 2 while filtering the waste gas through the filter belt 23, maintaining the convenience of filtration by the filter belt 23 and preventing waste gas leakage. This solves the problem of leakage risks at the connection when filtering waste gas in traditional belt filter equipment. Filter belt 23 is usually used for solid-liquid separation. Most of the exhaust gas from printing press 5 is filtered by adsorption. In order to improve the convenience of cleaning and maintenance of filter material, filter belt 23 is used as a carrier for filtration. However, in order to ensure the mobility of filter belt 23, a gap is set at the connection between filter belt 23 and treatment box 2 for filter belt 23 to pass through. This will cause exhaust gas to leak from the gap during the filtration process. If the gap is set too small, it will affect the passage of filter belt 23. In addition, when filter belt 23 moves, it will generate a lot of friction with treatment box 2, causing filter belt 23 to be damaged. To reduce equipment costs, only one first rotary driver 222 is provided on each of the two mounting seats 22 located on the same bracket 21. The first rotary driver 222 can only drive the mounting roller 221 connected to it to rotate. The mounting roller 221 on the other mounting seat 22 is connected to the mounting seat 22 via a spring, so that it can rotate under the elastic force of the spring when it is not under tension. Therefore, when the first rotary driver 222 drives the mounting roller 221 to rotate in the forward direction, it rotates by overcoming the elastic force of the spring through the tension of the filter belt 23. When the first rotary driver 222 drives the mounting roller 221 to rotate in the reverse direction, the filter belt 23 is no longer under the torque of the first rotary driver 222 and moves under the elastic force of the spring to perform a reset operation. To address the aforementioned issues, a sealing block 24 is provided to seal the gap between the treatment box 2 and the filter belt 23. The sealing block 24 is elastic; when the auxiliary control mechanism 3 controls the sealing block 24 to engage with the treatment box 2, the sealing block 24 deforms under the pressure of the treatment box 2, tightly engaging with the filter belt 23 to prevent exhaust gas leakage. When it is necessary to move the filter belt 23, the auxiliary control mechanism 3 controls the sealing block 24 to move away from the treatment box 2. Under the elastic force, the sealing block 24 returns to its original shape and no longer engages with the filter belt 23, thus preventing the filter belt 23 from experiencing significant friction during movement.

[0033] Reference Figures 1 to 4The auxiliary control mechanism 3 includes a connecting component 31 and a transmission component 32. The connecting component 31 is used to connect the filter belt 23 and the sealing block 24. Two mounting seats 22 located on the same bracket 21 are connected by transmission component 32. In the working state, when the first rotary driver 222 controls the mounting roller 221 to rotate, the mounting roller 221 pulls the filter belt 23 to move. When the filter belt 23 moves to the designated position, the filter belt 23 is connected to the sealing block 24 through the connecting component 31. The filter belt 23 drives the sealing block 24 to move until the sealing block 24 abuts against the processing box 2. The sealing block 24 is controlled by the transmission component 32 to abut against the processing box 2 on the other side.

[0034] The present invention realizes the function of moving the sealing block 24 by the filter belt 23 through the connecting component 31 and the transmission component 32, thereby achieving the effect of automatically controlling the movement of the sealing block 24 when the filter belt 23 is moved. The collection box 1 is equipped with a controller for human-machine interaction. The first rotary drive 222 is preferably a servo motor, which is electrically connected to the controller. When the first rotary drive 222 controls the installation roller 221 to rotate, the installation roller 221 pulls the filter belt 23 to move. When the filter belt 23 moves to the designated position, the filter belt 23 is connected to the sealing block 24 through the connecting component 31. Under the pulling action of the installation roller 221, the filter belt 23 continues to move. At the same time, the filter belt 23 drives the sealing block 24 to move through the connecting component 31 until the sealing block 24 is tightly fitted against the processing box 2. While the sealing block 24 is moving, it controls the other sealing block 24 to move in the opposite direction at the same speed through the transmission component 32, so that the two sealing blocks 24 simultaneously abut against the processing box 2 to perform the sealing operation. Furthermore, the pulling force of the installation roller 221 on the filter belt 23 can apply a pre-tightening force to the sealing block 24, so that the two sealing blocks 24 can stably abut against the processing box 2.

[0035] Reference Figure 3 , Figure 7 and Figure 8 The sealing block 24 is provided with an oblique protrusion 241, and the outer wall of the processing box 2 is provided with an oblique trapezoidal surface 25 for cooperating with the oblique protrusion 241.

[0036] This invention achieves the function of stably compressing the sealing block 24 when it abuts against the processing box 2 through the oblique protrusion 241 and the oblique trapezoidal surface 25, thereby deforming the sealing block 24 to completely seal the gap on the processing box 2. Through the cooperation of the oblique protrusion 241 on the sealing block 24 and the oblique trapezoidal surface 25 on the processing box 2, when the sealing block 24 abuts against the processing box 2, the oblique trapezoidal surface 25 on the processing box 2 compresses the oblique protrusion 241 on the sealing block 24, thereby applying pressure to both sides of the sealing block 24, compressing it, and causing it to abut against the filter belt 23. This allows the sealing block 24 to completely seal the gap at the connection between the processing box 2 and the filter belt 23, preventing exhaust gas leakage during the filtration process.

[0037] Reference Figures 4 to 6 The connecting assembly 31 includes a first support 311, a locking block 312, and a first elastic element 313; the filter belt 23 has two connecting belts 231 at both ends for connecting with the mounting roller 221; the first support 311 is mounted on the sealing block 24, the locking block 312 is slidably mounted on the first support 311, the locking block 312 has an inclined surface on the side near the processing box 2, and the two ends of the first elastic element 313 are connected to the locking block 312 and the first support 311 respectively; the connecting belt 212... The 31 is provided with a slot 2311 that cooperates with the card block 312; in the working state, when the card block 312 is engaged with the slot 2311, the connecting belt 231 pushes the card block 312 and the first support 311 to move synchronously, and the first support 311 drives the sealing block 24 to move; when the connecting belt 231 moves away from the processing box 2, the inner wall of the slot 2311 presses the inclined surface of the card block 312, the first elastic element 313 contracts, and the card block 312 separates from the slot 2311.

[0038] The present invention realizes the function of moving the sealing block 24 by moving the filter belt 23 through the first support 311, the locking block 312, the first elastic element 313, the connecting belt 231, and the slot 2311. At the same time, by means of the inclined surface of the locking block 312, when the filter belt 23 moves in the opposite direction, it can squeeze the inclined surface of the locking block 312 to push the locking block 312, compress the first elastic element 313, so that the locking block 312 moves away from the slot 2311, disconnecting the connection between the filter belt 23 and the sealing block 24. The sealing block 24 itself is elastic and can be reset under the action of elastic force. When controlling the movement of the filter belt 23, the operator sends a signal to the first rotary driver 222 through the controller. After receiving the signal, the first rotary driver 222 drives the mounting roller 221 to rotate. The mounting roller 221 pulls the filter belt 23 to move through the connecting belt 231. At this time, the side that was originally in contact with the processing box 2 is squeezed by the connecting belt 231 against the inclined surface of the locking block 312, so that the locking block 312 separates from the slot 2311, thereby enabling smooth control of the movement of the filter belt 23. When the locking block 312 is aligned with the slot 2311, the locking block 312 is inserted into the slot 2311 under the elastic force of the first elastic element 313. With the continuous pulling action of the mounting roller 221, the filter belt 23 continues to move, and the locking block 312 and the locking groove 2311 drive the sealing block 24 to move, so that the sealing block 24 abuts against the processing box 2. At the same time as the sealing block 24 moves, the transmission component 32 controls the other sealing block 24 to move in the opposite direction at the same speed, so that the two sealing blocks 24 abut against the processing box 2 at the same time to perform the sealing operation. Furthermore, the pulling force of the mounting roller 221 on the filter belt 23 can apply a pre-tightening force to the sealing block 24, so that the two sealing blocks 24 can stably abut against the processing box 2.

[0039] Reference Figure 3 and Figure 7 The transmission assembly 32 includes a connecting rod 321, a rack 322, a rotating shaft 323, and a rotating gear 324. There are two connecting rods 321, which are respectively connected to the mounting rollers 221 on both sides of the processing box 2, and the connecting rods 321 are slidably engaged with the processing box 2. The rack 322 is connected to the connecting rod 321. The rotating shaft 323 is rotatably mounted on the outer wall of the processing box 2, and the rotating gear 324 is sleeved on the rotating shaft 323. Both racks 322 are meshed with the rotating gear 324.

[0040] This invention achieves synchronous control of the movement of two mounting rollers 221 through a connecting rod 321, a rack 322, a rotating shaft 323, and a rotating gear 324. When the mounting rollers 221 are driven to rotate by the first rotary driver 222, the mounting rollers 221 pull the filter belt 23 to move through the connecting belt 231. When the locking block 312 on the first support 311 is engaged with the locking groove 2311 on the connecting belt 231, it pulls the first support 311 and the sealing block 24 to move. When the sealing block 24 moves, it drives the connecting rod 321 connected to it to move. The connecting rod 321 drives the rack 322 connected to it to move. Then, the rack 322 drives the rotating gear 324 connected to it to rotate. The rotating gear 324 drives the other rack 322 to move in the opposite direction. Then, the connecting rod 321 drives the sealing block 24 on the other side to move, so that both sealing blocks 24 can move towards the processing box 2. When the connecting band 231 on one side pushes the sealing block 24 to move through the connecting assembly 31, it can control both sealing blocks 24 to abut and cooperate with the processing box 2.

[0041] Reference Figure 3 , Figure 7 and Figure 9 The auxiliary control mechanism 3 includes a reset assembly 33 for controlling the reset of the sealing block 24. The reset assembly 33 includes a second support 331, a fixed seat 332, and a second elastic member 333. The second support 331 is mounted on the connecting rod 321. The fixed seat 332 is mounted on the outer wall of the processing box 2. The two ends of the second elastic member 333 are respectively connected to the second support 331 and the fixed seat 332.

[0042] The present invention achieves the function of controlling the resetting of the connecting rod 321 and the sealing block 24 through the second support 331, the fixed seat 332 and the second elastic element 333. Although the sealing block 24 can automatically reset when the connecting belt 231 stops pulling it due to the elasticity of the sealing block 24, there may still be cases where the sealing block 24 cannot reset smoothly under the action of friction. Therefore, a reset component 33 is provided to control the active reset of the sealing block 24. When the first rotary driver 222 drives the mounting roller 221 to rotate to control the movement of the filter belt 23, the filter belt 23 no longer pulls the sealing block 24, and the connecting belt 231 squeezes the inclined surface of the locking block 312, compressing the first elastic element 313, causing the locking block 312 to move away from the locking groove 2311, disconnecting the filter belt 23 from the sealing block 24. The sealing block 24 itself is elastic, and the second support 331 on the connecting rods 321 on both sides is moved away from the processing box 2 by the elastic force of the second elastic element 333, so that the sealing blocks 24 on both sides are separated from the processing box 2. The sealing blocks 24 are no longer squeezed by the processing box 2 and return to their original state, so that the sealing blocks 24 no longer squeeze the filter belt 23, thereby allowing the filter belt 23 to move smoothly.

[0043] Reference Figures 2 to 4 Each filter belt 23 has two detachable adsorption belts 232 for adsorbing impurities in the exhaust gas.

[0044] This invention achieves rapid cleaning and maintenance of the filter belt 23 through the adsorption belt 232. The filter belt 23 is rotated by the rotation of the mounting roller 221, allowing for the replacement of the two adsorption belts 232. During the replacement process, the removed filter belt 23 can be cleaned or disassembled. The movement of the filter belt 23 facilitates maintenance of the adsorption belt 232. Furthermore, by replacing the two adsorption belts 232, the filtration of exhaust gas can continue during maintenance, improving the working efficiency of the treatment equipment.

[0045] Reference Figure 1 and Figure 2 The bracket 21 is provided with an extension mechanism 4 for controlling the movement of the mounting base 22. The extension mechanism 4 includes a guide rod 41 and a linear drive assembly 42. The guide rod 41 is disposed on the bracket 21 and slides with the mounting base 22. The linear drive assembly 42 is disposed on the bracket 21 and is used to drive the mounting base 22 to slide along the guide rod 41.

[0046] This invention achieves the function of controlling the movement of the mounting base 22 through the guide rod 41 and the linear drive assembly 42. Furthermore, the movement of the mounting base 22 and the rotation of the mounting roller 221 control the extension of the filter belt 23 located outside the processing box 2. During maintenance of the adsorption belt 232, the rotation of the mounting roller 221 controls the adsorption belt 232 to be moved out of the processing box 2. Then, the linear drive assembly 42 controls the mounting base 22 to move away from the processing box 2. If the mounting base 22 is equipped with a first rotary driver 222, the first rotary driver 222 controls the mounting roller 221 to rotate in the opposite direction. If the mounting base 22 is not equipped with a first rotary driver 222, the driving action of the linear drive assembly 42 directly overcomes the elastic force of the spring to pull the filter belt 23, thereby gradually unfolding the adsorption belt 232, facilitating cleaning or replacement of the adsorption belt 232 by the operator.

[0047] Reference Figure 10 The end of the bracket 21 is provided with a distance sensor 211 for detecting the position of the mounting base 22.

[0048] This invention utilizes a distance sensor 211 to detect the position of the mounting base 22. The distance sensor 211 is electrically connected to the controller. When maintenance of the adsorption belt 232 is required, the linear drive assembly 42 is used to control the unfolding of the adsorption belt 232, facilitating disassembly or cleaning by the operator. However, if the mounting base 22 is moved away from the processing box 2 by the linear drive assembly 42 when one side of the filter belt 23 is already unfolded, the excessive tension on the filter belt 23 may cause it to break or tear. Therefore, before activating the linear drive assembly 42, the distance sensor 211 detects the distance between the mounting base 22 and the end of the bracket 21 to determine whether the filter belt 23 is unfolded, thus preventing damage to the filter belt 23 due to misoperation.

[0049] Reference Figure 2 and Figure 10 The linear drive assembly 42 includes a second rotary driver 421 and a screw 422; the second rotary driver 421 is mounted on the bracket 21, the screw 422 is rotatably mounted on the bracket 21, and the screw 422 is threadedly connected to the mounting base 22.

[0050] This invention achieves the function of controlling the mounting base 22 to slide along the guide rod 41 on the bracket 21 through a second rotary actuator 421 and a screw 422. The second rotary actuator 421 is preferably a servo motor, which is electrically connected to the controller. To facilitate stable control of the filter belt 23 by the operator, a distance sensor 211 is provided. When controlling the filter belt 23 to unfold, the controller sends a signal to the second rotary actuator 421. Upon receiving the signal, the second rotary actuator 421 drives the screw 422 to rotate. Through the limiting action of the guide rod 41, the screw 422 drives the mounting base 22, which is threadedly connected to it, to slide on the bracket 21, thereby pulling the filter belt 23 and controlling the unfolding of the adsorption belt 232 located outside the processing box 2 for cleaning or maintenance.

[0051] Working principle: When controlling the movement of the filter belt 23, the operator sends a signal to the first rotary driver 222 through the controller. After receiving the signal, the first rotary driver 222 drives the mounting roller 221 to rotate. The mounting roller 221 pulls the filter belt 23 to move through the connecting belt 231. At this time, the side that was originally in contact with the processing box 2 is squeezed by the connecting belt 231 against the inclined surface of the locking block 312, so that the locking block 312 separates from the slot 2311, thus enabling smooth control of the movement of the filter belt 23. When the locking block 312 is aligned with the slot 2311, the locking block 312 is engaged with the slot 2311 under the elastic force of the first elastic element 313. Under the continuous pulling action of the mounting roller 221, the filter belt 23 continues to move, and the locking block 2 is driven by the engagement of the locking block 312 with the slot 2311. 4. The sealing block 24 moves to abut against the processing box 2. At the same time as the sealing block 24 moves, the connecting rod 321 connected to it moves. The connecting rod 321 drives the rack 322 connected to it to move. In turn, the rack 322 drives the rotating gear 324 meshing with it to rotate. The rotating gear 324 drives another rack 322 to move in the opposite direction. Then, the connecting rod 321 drives the sealing block 24 on the other side to move, so that both sealing blocks 24 can move towards the processing box 2. When the two sealing blocks 24 abut against the processing box 2 at the same time, the processing box 2 is sealed. The tension of the filter belt 23 by the mounting roller 221 can apply a pre-tightening force to the sealing blocks 24, so that the two sealing blocks 24 can stably abut against the processing box 2. When the first rotary driver 222 drives the mounting roller 221 to rotate to control the movement of the filter belt 23, the filter belt 23 no longer pulls the sealing block 24, and the connecting belt 231 squeezes the inclined surface of the locking block 312, compressing the first elastic element 313, causing the locking block 312 to move away from the locking groove 2311, disconnecting the filter belt 23 from the sealing block 24. The sealing block 24 itself is elastic, and the second support 331 on the connecting rods 321 on both sides is moved away from the processing box 2 by the elastic force of the second elastic element 333, so that the sealing blocks 24 on both sides are separated from the processing box 2. The sealing blocks 24 are no longer squeezed by the processing box 2 and return to their original state, so that the sealing blocks 24 no longer squeeze the filter belt 23, thereby allowing the filter belt 23 to move smoothly.

[0052] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A printing press exhaust gas classification and treatment device, characterized in that, It includes a collection box (1), a processing box (2), and an auxiliary control mechanism (3); The collection box (1) is installed on the printing press (5), and the collection box (1) is connected to the processing box (2) through a pipe; The processing box (2) is provided with at least two supports (21), and each support (21) is slidably provided with two mounting seats (22). The two mounting seats (22) are located on both sides of the processing box (2). Each mounting seat (22) is provided with a mounting roller (221) and a first rotary driver (222) for driving the mounting roller (221) to rotate. A filter belt (23) is provided across the mounting roller (221), and the two ends of the filter belt (23) are respectively connected to the two mounting rollers (221); A sealing block (24) is movably installed on the processing box (2); The auxiliary control mechanism (3) is used to control the movement of the sealing block (24); In the working state, after the position of the filter belt (23) is adjusted by the first rotary driver (222), the auxiliary control mechanism (3) controls the sealing block (24) to move closer to the processing box (2) until the sealing block (24) and the processing box (2) are tightly fitted together.

2. The printing press exhaust gas classification and treatment equipment according to claim 1, characterized in that, The auxiliary control mechanism (3) includes a connecting component (31) and a transmission component (32). The connecting component (31) is used to connect the filter belt (23) and the sealing block (24); Two mounting bases (22) located on the same bracket (21) are connected by a transmission assembly (32); In the working state, when the first rotary driver (222) controls the installation roller (221) to rotate, the installation roller (221) pulls the filter belt (23) to move. When the filter belt (23) moves to the designated position, the filter belt (23) is connected to the sealing block (24) through the connecting component (31). The filter belt (23) drives the sealing block (24) to move until the sealing block (24) and the processing box (2) are tightly fitted. The sealing block (24) controls the sealing block (24) on the other side to abut against the processing box (2) through the transmission component (32).

3. The printing press exhaust gas classification and treatment equipment according to claim 2, characterized in that, The sealing block (24) is provided with an oblique protrusion (241), and the outer wall of the processing box (2) is provided with an oblique trapezoidal surface (25) for cooperating with the oblique protrusion (241).

4. The printing press exhaust gas classification and treatment equipment according to claim 2, characterized in that, The connecting component (31) includes a first support (311), a locking block (312), and a first elastic element (313); The filter belt (23) has two connecting belts (231) at both ends for connecting with the mounting roller (221); The first support (311) is set on the sealing block (24), the locking block (312) is slidably installed on the first support (311), the locking block (312) has an inclined surface on the side near the processing box (2), and the two ends of the first elastic element (313) are connected to the locking block (312) and the first support (311) respectively. The connecting strip (231) has a slot (2311) that mates with the card block (312); In the working state, when the card block (312) engages with the card slot (2311), the connecting belt (231) pushes the card block (312) and the first support (311) to move synchronously, and the first support (311) drives the sealing block (24) to move; when the connecting belt (231) moves away from the processing box (2), the inner wall of the card slot (2311) squeezes the inclined surface of the card block (312), the first elastic element (313) contracts, and the card block (312) separates from the card slot (2311).

5. The printing press exhaust gas classification and treatment equipment according to claim 2, characterized in that, The transmission assembly (32) includes a connecting rod (321), a rack (322), a rotating shaft (323), and a rotating gear (324). There are two connecting rods (321), which are respectively connected to the mounting rollers (221) on both sides of the processing box (2), and the connecting rods (321) are slidably engaged with the processing box (2). The rack (322) is connected to the connecting rods (321). The rotating shaft (323) is rotatably mounted on the outer wall of the processing box (2), and the rotating gear (324) is sleeved on the rotating shaft (323). Both racks (322) are meshed with the rotating gear (324).

6. The printing press exhaust gas classification and treatment equipment according to claim 5, characterized in that, The auxiliary control mechanism (3) includes a reset assembly (33) for controlling the reset of the sealing block (24). The reset assembly (33) includes a second support (331), a fixed seat (332), and a second elastic element (333). The second support (331) is mounted on the connecting rod (321); The mounting base (332) is installed on the outer wall of the processing box (2); The two ends of the second elastic element (333) are connected to the second support (331) and the fixed seat (332) respectively.

7. The printing press exhaust gas classification and treatment equipment according to claim 1, characterized in that, Each filter belt (23) has two removable adsorption belts (232) for adsorbing impurities in the exhaust gas.

8. A printing press exhaust gas classification and treatment device according to claim 1 or 7, characterized in that, The bracket (21) is provided with an extension mechanism (4) for controlling the movement of the mounting base (22). The extension mechanism (4) includes a guide rod (41) and a linear drive assembly (42). The guide rod (41) is mounted on the bracket (21), and the guide rod (41) is slidably engaged with the mounting base (22); The linear drive assembly (42) is mounted on the bracket (21) and is used to drive the mounting base (22) to slide along the guide rod (41).

9. A printing press exhaust gas classification and treatment device according to claim 8, characterized in that, The end of the bracket (21) is provided with a distance sensor (211) for detecting the position of the mounting base (22).

10. A printing press exhaust gas classification and treatment device according to claim 8, characterized in that, The linear drive assembly (42) includes a second rotary driver (421) and a screw (422). The second rotary actuator (421) is mounted on the bracket (21), and the screw (422) is rotatably mounted on the bracket (21). The screw (422) is threadedly connected to the mounting base (22).

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