A dryer

Abstract

The present application relates to cloth drying technical field, specifically is a kind of dryer, including drying cabinet, several distribution is arranged on the upper and lower sides of cloth and is arranged in matrix venturi air nozzle is vertically slidably connected in drying cabinet, venturi air nozzle is blown on cloth by the hot air with the wind direction of suitable air volume, position and wind direction by the adjusting mechanism of setting, the present application is divided into multiple independent, small drying module by the wind shield cover of cover setting in the outside of venturi air nozzle, the position of each venturi air nozzle, air volume and air direction are adjusted independently, thereby the region of different moisture content on cloth is carried out targeted uniform drying operation, ensure that cloth overall quality consistency, the present application is shielded control to the hot air blown by venturi air nozzle using wind shield cover, effectively slow down the escape speed of hot air, thereby without needing to maintain higher air supply volume and hot air temperature at all times, reduce energy consumption and production cost.

Description

Technical Field

[0001] This invention relates to the field of fabric drying technology, specifically a dryer. Background Technology

[0002] In the fabric production process, drying is one of the key steps to ensure the quality and performance of the finished product. Through effective drying treatment, the residual moisture in the fabric during previous processes such as dyeing and finishing can be removed, so that it reaches the specified moisture content standard. At present, common drying equipment includes drum dryers, hot air tenter frame machines, etc.

[0003] The tenter frame dryer has several Venturi nozzles arranged in a matrix inside the drying chamber, which are located on the upper and lower sides of the fabric. During operation, hot air is blown vertically onto the upper and lower surfaces of the fabric through the Venturi nozzles. Forced convection is used to uniformly and centrally heat the fabric, thereby achieving overall drying of the fabric.

[0004] However, since the fabric often has uneven moisture content distribution before entering the dryer, the traditional fixed position and fixed air volume Venturi nozzles are difficult to dynamically adjust according to the actual humidity of each area of ​​the fabric. This may result in insufficient drying of wetter areas and over-drying of drier areas, affecting the overall consistency of fabric quality.

[0005] In addition, after the high-speed vertical airflow impacts the fabric, it will quickly dissipate laterally along the fabric surface, resulting in some of the hot air energy not being fully utilized before being discharged outside the chamber. The heat exchange efficiency is low. Therefore, in order to achieve the required drying effect, it is usually necessary to maintain a high air volume and hot air temperature, which causes the equipment energy consumption to remain at a high level for a long time, increasing production costs.

[0006] In summary, there is an urgent need for a dryer that can be modularly configured and can independently and dynamically adjust the flow rate, position, and direction of the Venturi nozzles according to the moisture content of the fabric. Summary of the Invention

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a dryer, including a drying box, on which a plurality of Venturi nozzles are vertically slidably connected, distributed on the upper and lower sides of the fabric and arranged in a matrix, and the Venturi nozzles blow hot air onto the fabric with a suitable air volume, position and direction through a set adjustment mechanism.

[0008] The regulating mechanism includes an electrically adjustable valve connected to the Venturi nozzle and in communication with the air supply device. The Venturi nozzle is equipped with a drive assembly. A wind deflector is slidably connected to the outside of the Venturi nozzle. The wind deflector divides the drying chamber into multiple independent and short drying modules. Several grid plates are rotatably arranged at equal intervals on the lower side of the wind deflector. A humidity sensor is fixedly installed inside the wind deflector.

[0009] When drying, the humidity sensor monitors and feeds the hot air humidity data to the host computer in real time, so that the host computer controls the up-down movement of the venturi nozzle through the driving assembly, and controls the electric regulating valve to adjust the air volume of the venturi nozzle, at the same time, the venturi nozzle drives the grid to rotate and adjusts the air direction through the linkage assembly.

[0010] Therefore, by adjusting the position, air volume and air direction of the venturi nozzle of each drying module, the different moisture content areas of the cloth are uniformly dried.

[0011] Preferably, the wind shield is composed of a vertical section on the left and an inclined section on the right. When the cloth moves, it first passes through the humidity sensor in the inclined section of the wind shield, and then passes through the venturi nozzle in the vertical section of the wind shield.

[0012] Preferably, the air inlet of the electric regulating valve is connected with the air supply device through an air inlet hose, and the end of the inclined section of the wind shield away from the cloth is connected with the dehumidifying device and the air supply device through an air outlet hose, thereby forming an energy-saving circulating heat supply loop.

[0013] Preferably, the driving assembly includes a bracket plate fixedly installed on the venturi nozzle, and a hydraulic cylinder one fixedly installed on the bracket plate, and the extension section of the hydraulic cylinder one is fixedly connected with the drying box.

[0014] Preferably, the linkage assembly includes a linkage frame fixedly installed on the venturi nozzle, and a connecting plate hinged to the front side of the linkage frame, and a swing plate fixedly installed on the front side of a grid on the same wind shield, and the swing plate is hinged to the connecting plate.

[0015] Preferably, the rear end of the grid is fixedly installed with a synchronization plate, and the synchronization plates on the same wind shield are arranged in parallel with each other, and the end portions of the synchronization plates on the same wind shield are jointly hinged with a linkage plate.

[0016] Preferably, the inclination angle of the grids on the same wind shield gradually increases from left to right, and the grids after inclination guide the hot air to the right.

[0017] Preferably, a plurality of the wind shields arranged in matrix on one side of the cloth are jointly connected with a plate frame which can slide up and down along the drying box, and a hydraulic cylinder two fixedly installed on the plate frame is fixedly connected with the drying box.

[0018] Preferably, a plurality of the venturi nozzles on the same side of the cloth are arranged in multiple columns in the left-right direction, and each column is staggered in the front-rear direction, so that the air outlet areas of all the venturi nozzles on the same side collectively cover the entire width of the cloth.

[0019] Preferably, a plurality of the venturi nozzles on the upper side of the cloth are arranged in left-right staggered manner with a plurality of the venturi nozzles on the lower side of the cloth, so as to avoid the upper and lower sides of the same position of the cloth being blown at the same time.

[0020] The beneficial effects of the present application are: firstly, the present application divides the drying box into multiple independent and small drying modules by the wind shield cover arranged outside the venturi air nozzle, and the humidity data fed back by the humidity sensor in each wind shield cover is used to adjust the position, air volume and air direction of each venturi air nozzle in real time by the upper computer, so that the areas with different water content on the cloth are uniformly dried in a targeted manner, and the overall quality consistency of the cloth is ensured.

[0021] Secondly, the present application uses the wind shield cover to shield and control the hot air blown by the venturi air nozzle, effectively slows down the escape speed of the hot air, prolongs the contact time of the hot air and the cloth, and improves the heat exchange rate, so that it is not necessary to maintain a high air supply volume and hot air temperature at all times, thereby reducing energy consumption and production cost.

[0022] Thirdly, the present application uses the data fed back by the humidity sensor to adjust the position of the venturi air nozzle up and down in real time through the driving assembly, so that the venturi air nozzle is close to the cloth in the high water content area, at this time the airflow attenuation is small, the impact speed is high, and the penetration force is strong, which can effectively break the high humidity boundary layer on the surface of the cloth and enhance the evaporation driving force of water; the venturi air nozzle is away from the cloth in the low water content area, at this time the airflow diffuses, the speed and impact pressure are reduced, and the heating intensity of the hot air on the cloth is weakened, thereby avoiding over-drying.

[0023] Fourthly, when the position of the venturi air nozzle is adjusted up and down, the grid plate is synchronously rotated through the linkage assembly, so that the angle of the hot air incident to the cloth is adjusted at the same time, vertical incidence to the high water content area is realized, the airflow impacts the cloth surface vertically with the maximum momentum, effectively penetrates the fabric gap, strongly disturbs the boundary layer of the cloth surface, and maximizes the heat and mass transfer efficiency between the hot air and the cloth; for the low water content area, the hot air is incident obliquely, so that the airflow flows along the tangent of the cloth surface, the vertical component speed of the airflow is reduced, the impact force is weakened, the contact time of the airflow and the cloth surface is prolonged, and then the cloth is heated gently, the heat and moisture balance is promoted, and the consistency of the drying degree is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] The present application will be further described below in combination with the drawings and examples.

[0025] Figure 1 is a schematic diagram of the overall structure of the present application.

[0026] Figure 2 is a top view of the drying box, the venturi air nozzle, the hydraulic cylinder two and the rack frame in the present application.

[0027] Figure 3 is a partial sectional view of the drying box, the wind shield cover, the venturi air nozzle and the electric regulating valve in the present application.

[0028] Figure 4 is a structural schematic diagram of the rack frame, the hydraulic cylinder two, the wind shield cover and the grid plate in the present application.

[0029] Figure 5 Figure 1 is a partial sectional view of the drying box, the Venturi air nozzle, the electric valve and the hydraulic cylinder one in the present application.

[0030] Figure 6 Figure 2 is a structural schematic view of the wind shield, the grid plate, the synchronization plate and the linkage plate in the present application.

[0031] Figure 7 Figure 3 is a partial sectional view of the wind shield, the grid plate, the humidity sensor and the Venturi air nozzle in the present application.

[0032] Figure 8 Figure 4 is a sectional view of the Venturi air nozzle in the present application when drying the low moisture content area of the cloth.

[0033] Figure 9 Figure 5 is a sectional view of the Venturi air nozzle in the present application when drying the high moisture content area of the cloth.

[0034] In the figure: 1, drying box; 2, Venturi air nozzle; 3, adjusting mechanism; 31, electric valve; 32, driving assembly; 33, wind shield; 34, grid plate; 35, humidity sensor; 36, linkage assembly; 321, support plate; 322, hydraulic cylinder one; 331, plate support; 332, hydraulic cylinder two; 361, linkage frame; 362, connecting plate; 363, swing plate; 364, synchronization plate; 365, linkage plate. DETAILED DESCRIPTION

[0035] The embodiments of the present application are described in detail below. The embodiments described below are exemplary only, and are intended to explain the present application, and should not be understood as a limitation of the present application. The specific techniques or conditions not mentioned in the embodiments are performed according to the techniques or conditions described in the literature in the art or according to the product instructions.

[0036] Referring to Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 7 , a dryer comprises a drying box 1, a plurality of Venturi air nozzles 2 distributed on the upper and lower sides of the cloth and arranged in a matrix are vertically and slidably connected to the drying box 1, and the Venturi air nozzles 2 blow hot air on the cloth at a suitable air volume, position and direction through the adjusting mechanism 3 arranged thereon, so as to uniformly dry the different moisture content areas of the cloth.

[0037] Referring to Figure 1 , Figure 3 , Figure 4 and Figure 5, the adjusting mechanism 3 comprises an electric regulating valve 31 connected to the venturi air nozzle 2 and communicated with the air supply device, a wind shield 33 is slidably connected to the outside of the venturi air nozzle 2, the wind shield 33 divides the drying box 1 into a plurality of independent and small drying modules, the wind shield 33 is composed of a vertical section on the left and an inclined section on the right, the air inlet of the electric regulating valve 31 is communicated with the air supply device through an air inlet hose, and the end of the inclined section of the wind shield 33 away from the cloth is connected with the dehumidifying device and the air supply device through an air outlet hose, thereby forming an energy-saving circulating heat supply loop.

[0038] It is worth noting that the electric regulating valve 31 is selected from the market valves capable of high-precision automatic control of high-temperature airflow flow, such valves are fine in flow control, fast in response to control signals, and can withstand high temperature, in addition, the air inlet hose and the air outlet hose in the embodiment are selected from high-temperature-resistant stainless steel hoses; the dehumidifying device and the air supply device adopt the common circulating air supply and heating system in the prior art, which will not be described herein.

[0039] Referring to Figure 3 , Figure 6 and Figure 7 , a humidity sensor 35 is fixedly installed in the wind shield 33, and the wind shield 33 is close to the cloth but does not contact the cloth, so that the wind shield 33 can effectively block the escape of hot air therein. When the cloth continuously moves into the drying box 1 for drying, the cloth first passes through the humidity sensor 35 in the inclined section of the wind shield 33 and then passes through the venturi air nozzle 2 in the vertical section of the wind shield 33.

[0040] So that the hot air flow blown out by the venturi air nozzle 2 blows along the vertical section of the wind shield 33 to the cloth surface, and then when the hot air radially diffuses along the cloth surface, it is shielded and controlled by the wind shield 33, thereby effectively slowing down the escape speed of the hot air, prolonging the contact time of the hot air and the cloth, and improving the heat exchange rate, so that the hot air flow does not need to be maintained at a high flow rate and temperature at all times, thereby reducing energy consumption and production cost, so that the moisture on the cloth surface evaporates into the hot air, and the humidity of the hot air is improved.

[0041] Then the steam in the hot air moves to the inside of the inclined section of the wind shield 33 under the action of the airflow, and is discharged from the inclined section of the wind shield 33 after being monitored by the humidity sensor 35, and the humidity sensor 35 feeds back the humidity data of the hot air to the upper computer in real time, so that the upper computer controls the electric regulating valve 31 to adjust the air outlet of the venturi air nozzle 2. When the humidity sensor 35 monitors that the humidity of the hot air is small, the upper computer judges that the water content of the cloth in this area is low, and then controls the electric regulating valve 31 to reduce the air outlet of the venturi air nozzle 2 to avoid over-drying; at the same time, when the humidity sensor 35 monitors that the humidity of the hot air is large, the air outlet of the venturi air nozzle 2 is increased to avoid under-drying.

[0042] It should be noted that the humidity sensor 35 adopts a high-precision, high-temperature-resistant sensor on the market, which can monitor the high-temperature steam in the high-temperature hot air more sensitively, and the high-precision feedback humidity data, and the host computer can control the electric regulating valve 31 to adjust the flow according to the moving speed of the cloth, so as to ensure the accurate positioning and drying of the Venturi nozzle 2.

[0043] Referring to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 8 and Figure 9 , the Venturi nozzle 2 is provided with a driving assembly 32, which controls the up and down movement of the Venturi nozzle 2. The driving assembly 32 includes a bracket plate 321 fixedly installed on the Venturi nozzle 2, a hydraulic cylinder one 322 fixedly installed on the bracket plate 321, and a telescopic section of the hydraulic cylinder one 322 fixedly connected with the drying box 1.

[0044] The host computer controls the electric regulating valve 31 according to the humidity data fed back by the humidity sensor 35 and the moving speed of the cloth, and simultaneously controls the extension and retraction of the telescopic section of the hydraulic cylinder one 322, so that the hydraulic cylinder one 322 drives the Venturi nozzle 2 to adjust the position up and down through the bracket plate 321. When the air volume of the Venturi nozzle 2 increases, the Venturi nozzle 2 moves close to the cloth, so that the Venturi nozzle 2 is close to the high-moisture area of the cloth. At this time, the airflow attenuation is small, the impact speed is high, and the penetration force is strong, which can effectively break the high-moisture boundary layer on the surface of the cloth and enhance the evaporation driving force.

[0045] When the air volume of the Venturi nozzle 2 decreases, the Venturi nozzle 2 moves away from the cloth, so that the Venturi nozzle 2 is away from the low-moisture area of the cloth. At this time, the airflow diffuses, the speed and impact pressure decrease, and the heating intensity of the hot air on the cloth decreases, which avoids over-drying.

[0046] Referring to Figure 3 、 Figure 4 、 Figure 5 、 Figure 8 and Figure 9 , a plurality of baffle plates 34 are rotatably arranged at equal intervals on the lower side of the wind shield 33. The Venturi nozzle 2 drives the baffle plate 34 to rotate for adjusting the air outlet direction through the linkage assembly 36 arranged thereon. The linkage assembly 36 includes a linkage frame 361 fixedly installed on the Venturi nozzle 2, a connecting plate 362 hingedly connected to the front side of the linkage frame 361, and a swing plate 363 fixedly installed on the front side of a baffle plate 34 located on the same wind shield 33. The swing plate 363 is hingedly connected to the connecting plate 362. When the Venturi nozzle 2 moves up and down relative to the wind shield 33 at the corresponding position, the Venturi nozzle 2 drives the baffle plate 34 at the corresponding position to rotate through the transmission of the linkage frame 361, the connecting plate 362 and the swing plate 363.

[0047] Referring to Figure 5 、 Figure 6 、 Figure 8 and Figure 9 , the rear end of the baffle plate 34 is fixedly provided with a synchronization plate 364, the synchronization plates 364 on the same wind shield 33 are arranged in parallel, and the ends of the synchronization plates 364 on the same wind shield 33 are hingedly connected with a linkage plate 365. When one baffle plate 34 on the same wind shield 33 rotates, the baffle plate 34 pushes the linkage plate 365 through the synchronization plate 364 thereon, and the linkage plate 365 drives the corresponding baffle plate 34 to rotate by pushing the remaining synchronization plates 364. Therefore, through the above structural design, the baffle plates 34 on the same wind shield 33 can be synchronously, angularly and directionally rotated.

[0048] When the Venturi nozzle 2 moves close to the cloth, the baffle plate 34 is driven by the Venturi nozzle 2 to rotate clockwise, so that the inclination of the baffle plate 34 gradually decreases, thereby gradually reducing the change of the hot air direction, and further enabling the hot air flow to impact the cloth surface in the high moisture area with large momentum, effectively penetrating the fabric gap, strongly disturbing the cloth boundary layer, and maximizing the heat and mass transfer efficiency between the hot air and the cloth.

[0049] When the Venturi nozzle 2 moves away from the cloth, the baffle plate 34 is driven by the Venturi nozzle 2 to rotate counterclockwise, so that the inclination of the baffle plate 34 gradually increases, thereby gradually increasing the change of the hot air direction, reducing the vertical direction speed of the airflow, and making the airflow obliquely incident to the low moisture area, so that the airflow flows along the tangential direction of the cloth surface, reduces the impact force, prolongs the contact time between the airflow and the cloth surface, and further gently heats the cloth, promotes the heat and humidity balance, and improves the consistency of the drying degree.

[0050] In order to realize the gradient change of the airflow impact force in each wind shield 33, the cloth to be heated area on the right side of the Venturi nozzle 2 is preheated, and the present application designs the following structure: referring to Figure 7 、 Figure 8 and Figure 9 , the inclination angle of the baffle plate 34 on the same wind shield 33 gradually increases from left to right, and the baffle plate 34 after inclination guides the hot air to the right, and the cloth enters the wind shield 33 from right to left, so that the direction of the airflow impact on the cloth gradually tends to be vertical during the movement, thereby forming a continuous gradient heating field for the cloth, which simulates the heat input curve required by the ideal drying process, avoids the hot impact on the cloth, and improves the drying effect.

[0051] In order to realize the requirement of ordinary heating for special cloth, the present application designs the following structure: referring to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 8 and Figure 9The plate frame 331 is slidably arranged on the drying box 1, the hydraulic cylinder two 332 is fixedly installed on the plate frame 331, and the hydraulic cylinder two 332 is fixedly connected with the drying box 1, when the special cloth needs to be heated, the texturized air nozzle 2 is moved to the maximum position away from the cloth, then the extension section of the hydraulic cylinder two 332 is extended, all the windshields 33 are driven away from the cloth through the plate frame 331, so that the windshields 33 no longer block the hot air escaping from the cloth surface, so that the texturized air nozzle 2 uniformly and centrally blows the hot air to the cloth, thereby realizing the overall drying of the cloth.

[0052] When the texturized air nozzle 2 and the windshields 33 are close to the cloth and when the texturized air nozzle 2 and the windshields 33 are away from the cloth, the inclination angle of the grid plate 34 is consistent and is in the state of minimum inclination, so that the hot air flow blown by the texturized air nozzle 2 can directly pass through the grid plate 34 and vertically enter the cloth, thereby realizing the traditional drying of the cloth.

[0053] In order to ensure the non-blind area drying of the cloth surface, the present application designs the following structure: refer to Figure 2 and Figure 3 The texturized air nozzles 2 on the same side of the cloth are arranged in multiple columns in the left-right direction, and the columns are staggered in the front-rear direction, so that the air outlet areas of all the texturized air nozzles 2 on the same side of the cloth collectively cover the entire surface of the cloth.

[0054] In order to make the hot air pass through the cloth and quickly take away the moisture in the cloth, the present application designs the following structure: refer to Figure 3 The texturized air nozzles 2 on the upper side of the cloth and the texturized air nozzles 2 on the lower side of the cloth are arranged in a staggered manner, so as to avoid the upper and lower surfaces of the cloth at the same position being blown at the same time, form air flow offset, and cause the moisture to be unable to quickly leave the cloth.

[0055] Although the present application uses the windshields 33, the electrically controlled valve 31 and the humidity sensor 35 and other structures, which increases the manufacturing cost of the drying machine, but through real-time monitoring of local humidity and self-adaptive adjustment of air volume, air nozzle position and air direction, precise and uniform drying of different moisture content regions of the cloth can be realized, the design significantly improves the heat exchange efficiency, avoids over-drying and under-drying, reduces energy consumption, ensures drying quality and consistency, and the energy saving benefits and product quality improvement in long-term operation can quickly balance the initial investment, has high comprehensive practical value and economy.

[0056] In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0057] In addition, the terms "first", "second", "one", "two" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "one", "two" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0058] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] The embodiments of the specific embodiment are the preferred embodiments of the present application, and are not limited to the protection scope of the present application, therefore; any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A dryer, comprising a drying chamber, wherein a plurality of Venturi nozzles are vertically and slidably connected to the drying chamber and arranged in a matrix on the upper and lower sides of a fabric, characterized in that, The Venturi nozzle uses an adjustable mechanism to blow hot air onto the fabric at a suitable volume, position, and direction. The regulating mechanism includes an electrically adjustable valve connected to the Venturi nozzle and connected to the air supply device. The Venturi nozzle is equipped with a drive assembly. A wind deflector is slidably connected to the outside of the Venturi nozzle. The wind deflector divides the drying chamber into multiple independent and short drying modules. Several grid plates are rotatably arranged at equal intervals on the lower side of the wind deflector. A humidity sensor is fixedly installed inside the wind deflector. During drying, the humidity sensor monitors and feeds back the hot air humidity data to the host computer in real time, so that the host computer controls the Venturi nozzle to move up and down through the drive component, and controls the electric regulating valve to adjust the air volume of the Venturi nozzle. At the same time, the Venturi nozzle drives the grid plate to rotate and adjust the air outlet direction through the set linkage component. By independently adjusting the position, air volume, and air direction of the nozzles in each drying module, targeted and uniform drying operations can be carried out on areas of the fabric with different moisture contents. The windshield consists of a vertical section on the left and an inclined section on the right. When the fabric moves, it first passes through the humidity sensor in the inclined section of the windshield, and then through the Venturi nozzle in the vertical section of the windshield. The air inlet of the electric regulating valve is connected to the air supply device through an air inlet hose, and the end of the inclined section of the wind deflector away from the fabric is connected to the dehumidification device and the air supply device through an exhaust hose, thereby forming an energy-saving circulating heat delivery circuit. The linkage assembly includes a linkage frame fixedly installed on the venturi nozzle, a connecting plate hinged to the front side of the linkage frame, and a swing plate fixedly installed on the front side of a grid plate on the same windshield, with the swing plate hinged to the connecting plate. A synchronization plate is fixedly installed at the rear end of the grid plate. The synchronization plates on the same windshield are arranged in parallel to each other, and the ends of the synchronization plates on the same windshield are hinged together with a linkage plate.

2. The dryer according to claim 1, characterized in that, The drive assembly includes a bracket plate fixedly mounted on a venturi nozzle, and a hydraulic cylinder is fixedly mounted on the bracket plate. The telescopic section of the hydraulic cylinder is fixedly connected to the drying chamber.

3. The dryer according to claim 1, characterized in that, The tilt angle of the grille on the same windshield gradually increases from left to right, and the tilted grille guides the hot air to the right.

4. A dryer according to claim 1, characterized in that, Several wind deflectors located on one side of the fabric and arranged in a matrix are connected to a common plate frame that can slide up and down along the drying box. A hydraulic cylinder with a telescopic section fixedly connected to the drying box is fixedly installed on the plate frame.

5. A dryer according to claim 1, characterized in that, Several Venturi nozzles on the same side of the fabric are arranged in multiple columns along the left-right direction, and each column is staggered from each other in the front-back direction, so that the air outlet area of ​​all Venturi nozzles on the same side covers the entire width of the fabric.

6. A dryer according to claim 1, characterized in that, The Venturi nozzles located on the upper side of the fabric and the Venturi nozzles located on the lower side of the fabric are arranged in a staggered manner to prevent the upper and lower sides of the fabric at the same location from being dried at the same time.

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