Hot air drying equipment for CTP plate production

Abstract

The application relates to a hot air drying equipment for CTP plate production, which belongs to the drying technical field. The equipment comprises a bottom plate, a drying box fixedly connected to the bottom plate, a pulling shell slidingly connected to the bottom plate, two first sliding rails slidingly connected to the pulling shell, two sliding blocks slidingly connected to the first sliding rails, sliding shafts fixedly connected to the two sliding blocks on one of the first sliding rails, suction plates slidingly connected to the sliding shafts, an electric sliding rail fixedly connected to the pulling shell, two electric sliding blocks slidingly connected to the electric sliding rail, connecting rods fixedly connected to the two electric sliding blocks of the electric sliding rail and slidingly connected to the corresponding sliding shafts. The CTP plate to be dried is vertically placed, and the two sides of the CTP plate are synchronously dried, so that the back side of the CTP plate is not shielded, the water vapor on the back side of the CTP plate is discharged, and the drying quality of the CTP plate is improved.

Description

Technical Field

[0001] This invention belongs to the field of drying technology, and in particular relates to a hot air drying device for CTP plate production. Background Technology

[0002] CTP (Continuous Printing to Plate) plates are high-performance printing plates used in direct-to-plate technology and are widely used in modern high-speed, high-precision offset printing processes. Compared with traditional PS (Photosensitive Plate) plates, CTP plates have significant advantages such as a simplified plate-making process, more accurate dot reproduction, and superior printing durability, making them one of the mainstream materials in the printing industry today. In the production process of CTP plates, washing is a crucial step, primarily used to remove residual chemical reagents and uncured photosensitive layers from the surface to ensure a clean plate surface and improve print quality. After washing, the remaining moisture on the plate surface must be thoroughly removed to ensure smooth subsequent processing.

[0003] Because CTP plates are coated with a photosensitive layer on only one side, only that side can be exposed to laser to form printed images. The other side is not photosensitive and cannot achieve the printing effect. Therefore, during the drying process, the common method is to lay the plate flat on a conveyor belt and let it enter the drying chamber for drying. In this method, the hot air can only act on one side of the photosensitive layer of the plate. Since the back side is in contact with the conveyor belt, the moisture evaporated by the heat in this area is blocked by the conveyor belt and cannot be discharged. This results in moisture residue on the side in contact with the conveyor belt. This residual moisture will move to the photosensitive surface of adjacent plates during subsequent stacking and packaging, affecting their surface quality and thus adversely affecting the subsequent printing effect, reducing the performance of the plate and the printing accuracy. Summary of the Invention

[0004] In order to overcome the shortcomings mentioned in the background art, the present invention provides a hot air drying device for CTP plate production.

[0005] Technical Solution: A hot air drying device for CTP plate production includes a base plate, a drying chamber fixedly connected to the base plate, a pull-out shell slidably connected to the base plate, the drying chamber slidably connected to the pull-out shell, a drive module for driving the pull-out shell to move on the base plate, two first slide rails slidably connected inside the pull-out shell, two sliders slidably connected inside the first slide rails, each of the two sliders on one of the first slide rails being fixedly connected to a sliding shaft, symmetrically distributed adsorption plates slidably connected to the sliding shaft, an electric slide rail fixedly connected to the pull-out shell, two electric sliders slidably connected to the electric slide rail, a connecting rod fixedly connected to each of the two electric sliders on the electric slide rail, the connecting rod being slidably connected to the corresponding sliding shaft, a single-sided fixing component for uniform drying inside the pull-out shell, a shaking component for accelerating the drying of CTP plates inside the pull-out shell, and two sets of drying components for uniform exhaust inside the drying chamber.

[0006] Furthermore, the single-sided fixing assembly includes a second slide rail, which is fixedly connected to the pull shell. The second slide rail is slidably connected to two sliders. Each of the two sliders in the second slide rail is fixedly connected to a first motor. The other two sliders in the first slide rail are rotatably connected to a first lead screw. The first lead screw is splinedly connected to the output shaft of the corresponding first motor. The first lead screw is provided with two symmetrically distributed threads, and the two threads on the first lead screw are respectively threadedly connected to the two adsorption plates on the corresponding sliding shaft.

[0007] Furthermore, the shaking component includes a second motor, which is fixedly connected to the pulling shell. The pulling shell is rotatably connected to a rotating shaft, which is fixedly connected to the output shaft of the second motor. The first slide rail is fixedly connected to an extrusion column, and the rotating shaft is fixedly connected to circumferentially distributed extrusion blocks. The extrusion blocks are used to extrude adjacent extrusion columns.

[0008] Furthermore, the drying assembly includes an air injection pipe, which is fixedly connected to the drying chamber. A support plate is fixedly connected inside the drying chamber. The air injection pipe and the support plate are provided with a plurality of linearly distributed air outlets, all of which are connected to the air injection pipe.

[0009] Furthermore, it also includes two reversing components for changing the exhaust direction of adjacent air outlets. The two reversing components are respectively disposed on both sides of the drying chamber. Each reversing component includes a third motor, which is fixedly connected inside the drying chamber. The output shaft of the third motor is fixedly connected to a second lead screw. The second lead screw is threadedly connected to a rack that is slidably connected to the support plate. The air outlet is fixedly connected to a spur gear, which is drivingly connected to the rack. The air outlet is rotatably connected to the support plate and the air injection pipe. The air outlet is provided with a limiting component for limiting its own state.

[0010] Furthermore, the number of teeth on the rack frame is no more than one-eighth of the number of teeth on the spur gear.

[0011] Furthermore, the limiting component includes a retaining shaft, which is slidably connected to the support plate. The air outlet cylinder is provided with two grooves, and the retaining shaft is located in the grooves to limit the state of the air outlet cylinder. A first elastic element is provided between the retaining shaft and the support plate.

[0012] Furthermore, a blocking piston is slidably connected inside the air outlet cylinder. The blocking piston is used to isolate the air injection pipe from the communication between the adjacent air outlet cylinder. A second elastic element is provided between the blocking piston and the air outlet cylinder. An adjustment component is provided inside the drying chamber for synchronously changing the communication state of all the air outlet cylinders.

[0013] Furthermore, the adjustment assembly includes a fourth motor, which is fixedly connected inside the drying chamber. The air injection pipe is rotatably connected to a rotating shaft, which is fixedly connected to the output shaft of the fourth motor. The rotating shaft is fixedly connected to linearly distributed extrusion discs, which are used to extrude adjacent sealing pistons.

[0014] Furthermore, the outer surface of the extrusion disc is composed of an inner arc surface, an inclined surface, an outer arc surface, and a straight surface. From top to bottom, the degree of the central angle corresponding to the outer arc surface of all the extrusion discs gradually increases, while the degree of the central angle corresponding to the inner arc surface gradually decreases.

[0015] The beneficial effects are: 1. By vertically placing the CTP plate to be dried and simultaneously drying both sides of the CTP plate, the back of the CTP plate is not obstructed, which helps to remove moisture from the back of the CTP plate and improves the drying quality of the CTP plate.

[0016] 2. Two sets of adsorption plates alternately adsorb and fix the CTP plate, while keeping the non-fixed adsorption plates away from the CTP plate to ensure that the adsorption plates do not block the high-temperature gas, so that the high-temperature gas can evenly dry the CTP plate and avoid the formation of drying dead zones.

[0017] 3. The adsorption plate drives the CTP plate to shake up and down synchronously, constantly changing the position of the CTP plate and improving the uniformity of drying. At the same time, the water stains attached to the CTP plate are quickly flowed downwards due to the up and down shaking, spreading out the water droplets attached to the CTP plate and accelerating the drying rate of the CTP plate.

[0018] 4. Before drying the CTP plate, the air outlet is deflected downwards to discharge room temperature gas at an angle. The CTP plate gradually forms a downward airflow from top to bottom, which drives the water droplets attached to the CTP plate downwards, causing the water droplets to carry away the impurities inside and separate them from the CTP plate. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the first slide rail and the sliding shaft of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the second slide rail and the first motor of the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the second motor and rotating shaft of the present invention;

[0023] Figure 5 This is a three-dimensional cross-sectional view of the drying oven of the present invention;

[0024] Figure 6 This is a three-dimensional structural diagram of the third motor and the second lead screw of the present invention;

[0025] Figure 7 This is a three-dimensional structural diagram of the retaining shaft and groove of the present invention;

[0026] Figure 8 This is a three-dimensional structural diagram of the fourth motor and rotating shaft of the present invention;

[0027] Figure 9 For the present invention Figure 8 Enlarged schematic diagram of the three-dimensional structure at point A;

[0028] Figure 10 This is a three-dimensional structural diagram of the inner and outer arc surfaces of the present invention.

[0029] Component names and numbers in the diagram: 1-Base plate, 2-Drying oven, 3-Pull-out shell, 4-Drive module, 5-First slide rail, 6-Sliding shaft, 7-Adsorption plate, 8-Electric slide rail, 9-Connecting rod, 201-Second slide rail, 202-First motor, 203-First lead screw, 301-Second motor, 302-Rotating shaft, 303-Extrusion column, 304-Extrusion block, 401-Air injection pipe, 402-Support plate, 403-Air outlet cylinder, 501-Third motor, 502-Second lead screw, 503-Rack frame, 504-Spur gear, 505-Clamping shaft, 506-Groove, 507-First elastic element, 601-Blocking piston, 602-Second elastic element, 603-Fourth motor, 604-Rotating shaft, 605-Extrusion disc, 6051-Inner arc surface, 6052-Outer arc surface. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0031] Example 1

[0032] This embodiment discloses a hot air drying device for CTP plate production, used to uniformly dry CTP plates.

[0033] like Figures 1-3 As shown, the device includes a base plate 1, a drying chamber 2 fixedly connected to the base plate 1, a pull-out shell 3 slidably connected to the base plate 1, the drying chamber 2 and the pull-out shell 3 being slidably connected, a drive module 4 for driving the pull-out shell 3 to move on the base plate 1, two first slide rails 5 slidably connected inside the pull-out shell 3, two sliders slidably connected inside the first slide rails 5, both sliders on one of the first slide rails 5 being fixedly connected to a sliding shaft 6, two symmetrically distributed adsorption plates 7 slidably connected to the sliding shaft 6, an electric slide rail 8 fixedly connected to the pull-out shell 3, two electric sliders slidably connected to the electric slide rail 8, a connecting rod 9 fixedly connected to each of the two electric sliders on the electric slide rail 8, the connecting rod 9 being slidably connected to the corresponding sliding shaft 6, a single-sided fixing component for uniform drying inside the pull-out shell 3, a shaking component for accelerating the drying of CTP plates inside the pull-out shell 3, and two sets of drying components for uniform exhaust inside the drying chamber 2.

[0034] In the above scheme, the drying box 2 and the pull shell 3 can form a sealed box after docking, which improves the drying efficiency of CTP plates. The drive module 4 consists of a servo motor and a transmission screw. The servo motor is fixedly connected to the base plate 1, and the transmission screw is rotatably connected to the base plate 1. The transmission screw is fixedly connected to the output shaft of the servo motor and threadedly connected to the bottom of the pull shell 3. The two sliding shafts 6 are vertically distributed. The adsorption plate 7 consists of a fixed plate and several suction cups arranged in a straight line. The suction cups are connected to the external negative pressure device to adsorb CTP plates. By placing the CTP plates to be dried vertically and drying both sides of the CTP plates simultaneously, the back side of the CTP plates is not obstructed, which helps to remove moisture from the back side of the CTP plates and improves the drying quality of the CTP plates.

[0035] like Figure 2 and Figure 3 As shown, the single-sided fixing assembly includes a second slide rail 201, which is fixedly connected to the pull shell 3. Two sliders are slidably connected to the second slide rail 201. A first motor 202 is fixedly connected to each of the two sliders in the second slide rail 201. A first lead screw 203 is rotatably connected to each of the two sliders in another first slide rail 5. The first lead screw 203 is splinedly connected to the output shaft of the corresponding first motor 202. Two symmetrically distributed threads are provided on the first lead screw 203. The two threads on the first lead screw 203 are threadedly connected to the two adsorption plates 7 on the corresponding sliding shaft 6, respectively.

[0036] In the above scheme, the two sliders on the first slide rail 5 on the right side are rotatably connected to the corresponding first lead screw 203. The rotation of the first lead screw 203 can drive the two adsorption plates 7 on the same sliding shaft 6 to move in opposite directions or in opposite directions, changing the distance between the two adsorption plates 7 on the same side. This can adapt to CTP plates of different specifications. By having the two sets of adsorption plates 7 alternately adsorb and fix the CTP plate, and keeping the non-fixed adsorption plates 7 away from the CTP plate, it is ensured that the adsorption plates 7 will not block the high-temperature gas, so that the high-temperature gas can evenly dry the CTP plate and avoid the drying dead corners of the CTP plate.

[0037] like Figures 2-4 As shown, the shaking component includes a second motor 301, which is fixedly connected to the pull housing 3. The pull housing 3 is rotatably connected to a rotating shaft 302, which is fixedly connected to the output shaft of the second motor 301. A first slide rail 5 is fixedly connected to an extrusion column 303, and the rotating shaft 302 is fixedly connected to circumferentially distributed extrusion blocks 304. The extrusion blocks 304 are used to extrude adjacent extrusion columns 303.

[0038] In the above scheme, the bottom of the pull shell 3 is rotatably connected to the rotating shaft 302, the extrusion column 303 is located at the bottom of the first slide rail 5, the extrusion block 304 is a right-angled triangle, the short right-angled side of the extrusion block 304 is in contact with the rotating shaft 302, and the hypotenuse of the extrusion block 304 extrudes the extrusion column 303, causing the extrusion column 303 to be driven by force to move the first slide rail 5 upward. When the extrusion column 303 separates from the hypotenuse of the extrusion block 304, it is reset downward by gravity, thereby realizing the up-and-down reciprocating motion of the two first slide rails 5, continuously changing the position of the CTP plate, improving the uniformity of drying the CTP plate, and at the same time, the water stains attached to the CTP plate are shaken up and down and flow down quickly, flattening the water droplets attached to the CTP plate and accelerating the drying rate of the CTP plate.

[0039] like Figure 5 As shown, the drying assembly includes an air injection pipe 401, which is fixedly connected to the drying chamber 2. A support plate 402 is fixedly connected inside the drying chamber 2. The air injection pipe 401 and the support plate 402 are provided with a number of air outlets 403 arranged in a straight line, and the number of air outlets 403 are all connected to the air injection pipe 401.

[0040] In the above scheme, the gas injection pipe 401 is connected to an external gas heating device, and the linearly distributed gas outlet cylinders 403 are fixedly connected to the gas injection pipe 401 and the support plate 402. However, this is limited to this embodiment. High-temperature gas enters the gas outlet cylinders 403 through the gas injection pipe 401. The gas outlet direction of the gas outlet cylinders 403 is perpendicular to the CTP plate to achieve the drying of the CTP plate.

[0041] Working principle: When drying the CTP plate after washing, the first motor 202 on the front side is turned on. The output shaft of the first motor 202 drives the first lead screw 203, which causes the two suction plates 7 on the front side to slide in opposite directions or back to back. The operator adjusts the two suction plates 7 on the front side to the corresponding height according to the height of the CTP plate, so that the two suction plates 7 on the front side adsorb the upper and lower parts of the CTP plate respectively. At the same time, the first motor 202 on the rear side is turned on, and the output shaft of the first motor 202 on the rear side drives the two suction plates 7 on the rear side to the top and bottom of the first lead screw 203 respectively, so that the two suction plates 7 on the rear side do not block the CTP plate. Then the operator attaches the upper and lower parts of the CTP plate to be dried to the corresponding suction plates 7 on the front side. At this time, the two suction plates 7 on the front side are turned on, and the CTP plate is adsorbed. At this time, the CTP plate is fixed. Then the drive module 4 is turned on, which drives the pull shell 3 to be spliced ​​with the drying box 2.

[0042] After the shell 3 is assembled with the drying chamber 2, high-temperature gas is injected into the two air injection pipes 401, so that the high-temperature gas enters the corresponding air outlets 403 along the air injection pipes 401. The high-temperature gas is discharged from the air outlets 403 to dry the CTP plate. By placing the CTP plate to be dried vertically and drying both sides of the CTP plate simultaneously, the back side of the CTP plate is not obstructed, which helps to remove moisture from the back side of the CTP plate and improves the drying quality of the CTP plate.

[0043] After the CTP plate has been dried for a certain period of time (the time can be freely set between 3 and 8 seconds), the first motor 202 on the rear side is turned on, causing the two rear suction plates 7 to move to the same height as the two front suction plates 7. Then, the electric slide rail 8 is activated, and the electric slider on the rear side of the electric slide rail 8 drives the connecting rod 9 to move forward. The connecting rod 9 drives the sliding shaft 6 on the rear side to move synchronously. The sliding shaft 6 causes the two rear suction plates 7 to adhere to the CTP plate and open to adsorb the CTP plate. At the same time, the two front suction plates 7 are closed to release the suction on the CTP plate. Then, the electric slide rail 8 drives the two front adsorption plates 7 to move forward through its front electric slider, connecting rod 9 and sliding shaft 6. At the same time, the front first motor 202 drives the two front adsorption plates 7 to the top and bottom respectively through the first lead screw 203 to prevent the adsorption plates 7 from blocking the high temperature gas from drying the CTP plate. This cycle continues until the CTP plate is dried. The two sets of adsorption plates 7 alternately adsorb and fix the CTP plate, and keep the non-fixed adsorption plates 7 away from the CTP plate, so that the high temperature gas can dry the CTP plate evenly and avoid the CTP plate from drying dead corners.

[0044] After the CTP plate is dried, stop injecting high-temperature gas into the gas injection pipe 401. At the same time, the drive module 4 drives the pull shell 3 to separate from the drying box 2, closes the adsorption plate 7 which is in the open state, and removes the dried CTP plate. When the CTP plate needs to be dried again, repeat the above steps.

[0045] During the drying of the CTP plate, the second motor 301 is turned on, causing the output shaft of the second motor 301 to drive the rotating shaft 302 to rotate. The rotating shaft 302 drives several extrusion blocks 304 distributed around it to rotate synchronously. The inclined edge of the extrusion block 304 extrudes the adjacent extrusion column 303. The extrusion column 303 is driven by the extrusion force to move the first slide rail 5 upward. When the inclined edge of the extrusion block 304 separates from the extrusion column 303, the first slide rail 5 falls downward under gravity. This cycle is repeated, causing the first slide rail 5 to reciprocate up and down. The first slide rail 5 drives the sliding shaft 6 and the first lead screw 203 to move synchronously through the slider on it, causing the adsorption plate 7 on it to drive the CTP plate to shake up and down synchronously. This continuously changes the position of the CTP plate, improves the uniformity of drying the CTP plate, and at the same time, the water stains attached to the CTP plate are quickly flowed downward due to the up and down shaking, flattening the water droplets attached to the CTP plate and accelerating the drying rate of the CTP plate.

[0046] After the CTP plate is dried, turn off the second motor 301. Repeat the above steps when the CTP plate needs to be dried again.

[0047] Example 2

[0048] This embodiment discloses a hot air drying device for CTP plate production, which is a further improvement on the basis of Embodiment 1.

[0049] Because the water droplets adhering to the surface of the CTP plate contain impurities, these impurities will remain on the plate surface after drying as the water evaporates. The adhesion strength increases, making them difficult to clean, which in turn affects the smoothness and photosensitivity of the CTP plate, reduces printing quality and plate lifespan.

[0050] like Figure 5 and Figure 6 As shown, it also includes two reversing components for changing the exhaust direction of adjacent air outlets 403. The two reversing components are set on both sides of the drying chamber 2. The reversing components include a third motor 501, which is fixedly connected inside the drying chamber 2. The output shaft of the third motor 501 is fixedly connected to a second lead screw 502. The second lead screw 502 is threadedly connected to a rack frame 503 that is slidably connected to the support plate 402. The air outlet 403 is fixedly connected to a spur gear 504, which is drively connected to the rack frame 503. The air outlet 403 is rotatably connected to the support plate 402 and the air injection pipe 401. The air outlet 403 is provided with a limiting component for limiting its own state. The number of teeth on the rack frame 503 is no more than one-eighth of the number of teeth on the spur gear 504.

[0051] In the above scheme, the air injection pipe 401 is connected to the external gas heating device and the external ambient temperature gas injection device. The third motor 501 is located on the right side of the drying chamber 2. The output shaft of the third motor 501 drives the air outlet cylinder 403 to rotate through the second lead screw 502, rack and pinion 503 and spur gear 504, causing the air outlet cylinder 403 to deflect downward and change the air outlet direction of the air outlet cylinder 403. The number of teeth on the rack and pinion 503 is not greater than one-eighth of the number of teeth on the spur gear 504, so that the rotation angle of the air outlet cylinder 403 driven by the rack and pinion 503 through the spur gear 504 is less than or equal to 45°, ensuring that the gas discharged from the air outlet cylinder 403 can still be blown towards the CTP plate.

[0052] like Figure 6 and Figure 7 As shown, the limiting component includes a retaining shaft 505, which is slidably connected to the support plate 402. The air outlet 403 is provided with two grooves 506. The retaining shaft 505 is located in the grooves 506 to limit the state of the air outlet 403. A first elastic element 507 is provided between the retaining shaft 505 and the support plate 402.

[0053] In the above scheme, the retaining shaft 505 has symmetrically distributed inclined surfaces, and the central angle of the arc surface corresponding to the two grooves 506 between the air outlet cylinder 403 is the same as the rotation angle of the spur gear 504. The grooves 506 have symmetrically distributed inclined surfaces, which facilitates the force separation of the retaining shaft 505 in the grooves 506. The first elastic element 507 is a tension spring, which is used to drive the retaining shaft 505 into the grooves 506 and to stabilize the deflection angle of the air outlet cylinder 403.

[0054] like Figure 9 As shown, a blocking piston 601 is slidably connected inside the air outlet 403. The blocking piston 601 is used to isolate the air injection pipe 401 from the communication between the adjacent air outlet 403. A second elastic element 602 is provided between the blocking piston 601 and the air outlet 403. An adjustment component is provided inside the drying box 2 for synchronously changing the communication state of all air outlets 403.

[0055] In the above scheme, the blocking piston 601 is located to the left of the air outlet 403 (within the left side). Figure 8 and Figure 9 (The direction is explained), that is, the side closer to the air injection pipe 401, which is used to prevent the gas in the air injection pipe 401 from entering the corresponding air outlet 403. The second elastic element 602 is a tension spring, which is used to drive the sealing piston 601 to release the sealing of the adjacent air outlet 403.

[0056] like Figure 8 and Figure 10As shown, the adjustment assembly includes a fourth motor 603, which is fixedly connected inside the drying chamber 2. An air injection pipe 401 is rotatably connected to a rotating shaft 604, which is fixedly connected to the output shaft of the fourth motor 603. The rotating shaft 604 is fixedly connected to linearly distributed extrusion discs 605. The extrusion discs 605 are used to extrude adjacent sealing pistons 601. The outer surface of the extrusion discs 605 consists of an inner arc surface 6051, an inclined surface, an outer arc surface 6052, and a straight surface. From top to bottom, the degree of the central angle corresponding to the outer arc surface 6052 of all extrusion discs 605 gradually increases, while the degree of the central angle corresponding to the inner arc surface 6051 gradually decreases.

[0057] In the above scheme, in the initial state, the contact position between the extrusion disc 605 and the sealing piston 601 is the inner arc surface 6051, that is, all air outlets 403 and adjacent air injection pipes 401 are in a connected state, which is used to dry the CTP plate. When the output shaft of the fourth motor 603 rotates clockwise (towards... Figure 9 and Figure 10 (Explained from a top-down view) This causes the sealing position of all sealing pistons 601 to change from the inner arc surface 6051 to the outer arc surface 6052. During this process, the sealing pistons 601 are compressed by the extrusion plate 605, sealing the corresponding air outlet 403. As the output shaft of the fourth motor 603 continues to rotate clockwise, the contact position between the extrusion plate 605 and the sealing pistons 601 changes from the outer arc surface 6052 to the inner arc surface 6051 from top to bottom, causing the sealing pistons 601 to release one by one from top to bottom. The timing of sealing the air outlet 403 and releasing the sealing piston 601 from the air outlet 403 is when the spur gear 504 on the air outlet 403 begins to mesh with the rack and pinion 503. The air outlet 403 deflects downwards in sequence to discharge the high-temperature gas obliquely downwards, so that the CTP plate gradually forms a downward airflow from top to bottom, driving the impurities attached to the CTP plate downwards, causing the impurities on it to flow downwards by the wind force and separate from the CTP plate, and reducing the probability of secondary adhesion of impurities.

[0058] Working principle: When the CTP plate starts drying, two fourth motors 603 are turned on. The output shaft of the fourth motor 603 drives the rotating shaft 604 to rotate. The rotating shaft 604 drives all the extrusion discs 605 on it to rotate, so that the contact surface between the sealing piston 601 and the extrusion disc 605 is transferred from the inner arc surface 6051 to the outer arc surface 6052. During this period, the extrusion disc 605 squeezes the sealing piston 601. The sealing piston 601 is squeezed and blocks the corresponding air outlet 403. At the same time, the second elastic element 602 is stretched. At this time, all air outlets 403 are in a blocked state. Then, the high temperature gas injected into the air injection pipe 401 is replaced with room temperature gas.

[0059] After all air outlets 403 are blocked, the two third motors 501 are activated. The output shafts of the third motors 501 drive the rack frame 503 to slide downwards via the second lead screw 502. The rack frame 503 meshes with several spur gears 504 sequentially from top to bottom. The spur gears 504 drive the corresponding air outlets 403 to rotate, and the air outlet direction of the air outlets 403 deflects downwards sequentially. At the same time, the output shaft of the fourth motor 603 drives the rotating shaft 604 to rotate intermittently. The rotating shaft 604 drives the extrusion disc 605 to rotate. Each time the rotating shaft 604 rotates, the blocking piston 601 switches from the outer arc surface 6052 to the inner arc surface 6051 from top to bottom. Simultaneously, the corresponding second elastic element 602 pulls the blocking piston 601 to reset. Unblock the air outlet 403, that is, connect the air outlets 403 sequentially from top to bottom. Whenever the rack and pinion 503 meshes with the spur gear 504, the corresponding air outlet 403 begins to connect with the adjacent air injection pipe 401. Before the CTP plate is dried, the air outlets 403 are deflected downwards sequentially to discharge room temperature gas obliquely downwards. The CTP plate gradually forms a downward airflow from top to bottom, driving the water droplets attached to the CTP plate downwards, causing the water droplets to carry away internal impurities and separate them from the CTP plate. This process continues until all the air outlets 403 have deflected completely and the rack and pinion 503 has moved to the bottom, completing the removal of water droplets on the outside of the CTP plate and internal impurities.

[0060] When the air outlet 403 deflects, it drives the two grooves 506 on it to rotate synchronously. The grooves 506 squeeze the retaining shaft 505 inside them. The retaining shaft 505 slides along the support plate 402 under the squeezing force. At the same time, the first elastic element 507 is stretched, and the retaining shaft 505 separates from the groove 506. When the air outlet 403 finishes deflecting, the retaining shaft 505 is connected to the other groove 506. The first elastic element 507 drives the retaining shaft 505 into the groove 506, locking the state of the air outlet 403 and stabilizing it so that room temperature gas is injected obliquely downwards. This ensures that the downward driving airflow of the CTP plate is stable and prevents the position of the air outlet 403 from shifting, which would cause the driving airflow of the CTP plate to be interrupted.

[0061] After the CTP plate impurity removal process is completed, the output shafts of the two third motors 501 drive the rack frame 503 to move upward and reset via the second lead screw 502. During this process, the rack frame 503 drives the air outlet cylinder 403 to reset and deflect to its initial state via several spur gears 504, so that the air outlet direction of the air outlet cylinder 403 is perpendicular to the CTP plate, improving the drying uniformity of the CTP plate. At the same time, the output shaft of the fourth motor 603 drives all the extrusion discs 605 to reset to their initial state via the rotating shaft 604, so that all the air outlet cylinders 403 are connected, and the room temperature gas in the air injection pipe 401 is replaced with high temperature gas, and the drying of the CTP plate begins. When the CTP plate needs to be dried again, the above steps are repeated.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hot air drying device for CTP plate production, comprising a base plate (1), a drying chamber (2) fixedly connected to the base plate (1), a pull-out shell (3) slidably connected to the base plate (1), the drying chamber (2) and the pull-out shell (3) being slidably connected, and a drive module (4) for driving the pull-out shell (3) to move on the base plate (1), characterized in that, Two first sliding rails (5) are oppositely arranged in the same plane in the pulling shell (3), two sliding blocks are slidably connected in the first sliding rails (5), the two sliding blocks on one of the first sliding rails (5) are fixedly connected with sliding shafts (6), the sliding shafts (6) are slidably connected with symmetrically arranged adsorption plates (7), the pulling shell (3) is fixedly connected with an electric sliding rail (8), two electric sliding blocks are slidably connected on the electric sliding rail (8), the two electric sliding blocks of the electric sliding rail (8) are fixedly connected with connecting rods (9), the connecting rods (9) are slidably connected with the corresponding sliding shafts (6), one-way fixing assemblies for uniform drying are arranged in the pulling shell (3), the pulling shell (3) is provided with a shaking assembly for accelerating the drying of the CTP plate material, and the drying box (2) is provided with two groups of drying assemblies for uniform exhaust. The one-way fixing assembly comprises a second sliding rail (201), the second sliding rail (201) is fixedly connected to the pulling shell (3), two sliding blocks are slidably connected to the second sliding rail (201), the two sliding blocks in the second sliding rail (201) are fixedly connected with first motors (202), the two sliding blocks in the other first sliding rail (5) are rotatably connected with first lead screws (203), the first lead screws (203) are spline-connected with output shafts of the corresponding first motors (202), the first lead screws (203) are provided with two symmetrically arranged threads, and the two threads on the first lead screws (203) are threadedly connected with the two adsorption plates (7) on the corresponding sliding shafts (6).

2. The hot air drying apparatus for CTP plate production according to claim 1, characterized in that, The shaking assembly comprises a second motor (301), the second motor (301) is fixedly connected to the pulling shell (3), the pulling shell (3) is rotatably connected with a rotating shaft (302), the rotating shaft (302) is fixedly connected with an output shaft of the second motor (301), the first sliding rail (5) is fixedly connected with an extrusion column (303), the rotating shaft (302) is fixedly connected with circumferentially distributed extrusion blocks (304), and the extrusion blocks (304) are used for extruding adjacent extrusion columns (303).

3. The hot air drying apparatus for CTP plate production according to claim 2, characterized in that, The drying assembly comprises a gas injection pipe (401), the gas injection pipe (401) is fixedly connected to the drying box (2), the drying box (2) is fixedly connected with a support plate (402), the gas injection pipe (401) and the support plate (402) are provided with a plurality of air outlet cylinders (403) arranged in a straight line, and the plurality of air outlet cylinders (403) are in communication with the gas injection pipe (401).

4. The hot air drying apparatus for CTP plate production according to claim 3, characterized in that, It also includes two reversing components for changing the exhaust direction of adjacent air outlets (403). The two reversing components are respectively arranged on both sides of the drying box (2). Each reversing component includes a third motor (501). The third motor (501) is fixedly connected to the drying box (2). The output shaft of the third motor (501) is fixedly connected to a second lead screw (502). The second lead screw (502) is threadedly connected to a rack frame (503) that is slidably connected to the support plate (402). The air outlet (403) is fixedly connected to a spur gear (504). The spur gear (504) is drivenly connected to the rack frame (503). The air outlet (403) is rotatably connected to the support plate (402) and the air injection pipe (401). The air outlet (403) is provided with a limiting component for limiting its own state.

5. The hot air drying apparatus for CTP plate production according to claim 4, characterized in that, The number of teeth on the rack (503) is no more than one-eighth the number of teeth on the spur gear (504).

6. The hot air drying apparatus for CTP plate production according to claim 5, characterized in that, The limiting component includes a retaining shaft (505), which is slidably connected to the support plate (402). The air outlet (403) is provided with two grooves (506). The retaining shaft (505) is located in the grooves (506) to limit the state of the air outlet (403). A first elastic element (507) is provided between the retaining shaft (505) and the support plate (402).

7. The hot air drying apparatus for CTP plate production according to claim 6, characterized in that, A blocking piston (601) is slidably connected inside the air outlet cylinder (403). The blocking piston (601) is used to isolate the air injection pipe (401) from the communication between the adjacent air outlet cylinder (403). A second elastic element (602) is provided between the blocking piston (601) and the air outlet cylinder (403). An adjustment component is provided inside the drying box (2) for synchronously changing the communication state of all the air outlet cylinders (403).

8. The hot air drying apparatus for CTP plate production according to claim 7, characterized in that, The adjustment assembly includes a fourth motor (603), which is fixedly connected to the drying chamber (2). The air injection pipe (401) is rotatably connected to a rotating shaft (604), which is fixedly connected to the output shaft of the fourth motor (603). The rotating shaft (604) is fixedly connected to a linearly distributed extrusion disc (605), which is used to extrude adjacent sealing pistons (601).

9. The hot air drying apparatus for CTP plate production according to claim 8, characterized in that, The outer surface of the extrusion disc (605) is composed of an inner arc surface (6051), an inclined surface, an outer arc surface (6052), and a straight surface. From top to bottom, the degree of the central angle corresponding to the outer arc surface (6052) of all the extrusion discs (605) gradually increases, while the degree of the central angle corresponding to the inner arc surface (6051) gradually decreases.

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