Low temperature difference post-treatment machine drying furnace

Abstract

This invention discloses a low-temperature differential drying oven, belonging to the technical field of drying oven equipment. It includes a drying oven body, a squeezing and dehydrating mechanism, a pulse-beating mechanism, a guide roller mechanism, a clamping roller mechanism, and an air distribution mechanism. In this invention, the squeezing and dehydrating mechanism squeezes and dehydrates the fabric before it enters the drying oven, expelling most of the water. The pulse-beating mechanism pulse-beats the fabric, causing it to pulsate up and down within the preheating zone, high-temperature drying zone, and cooling zone, allowing the water to quickly separate from the fabric, thereby improving the drying uniformity of the fabric's surface and inner layers and effectively shortening the drying time. The air distribution mechanism evenly distributes the hot air entering the preheating zone or high-temperature drying zone, effectively improving the uniformity of hot air distribution inside the drying oven and effectively reducing the temperature difference within a single area of ​​the drying oven.

Description

Technical Field

[0001] This invention relates to the field of drying oven equipment technology, specifically a low-temperature differential post-processing drying oven. Background Technology

[0002] In the textile industry, post-processing machines are a key group of equipment used to improve the quality and function of fabrics after they have been formed. These machines mainly include drying ovens, fabric take-up machines, steaming machines, and setting machines. Among these, the drying oven is the core equipment used for drying, fixing, and setting fabrics after wet treatment processes such as dyeing, printing, and coating. Through precise temperature control, it achieves efficient moisture removal and fiber structure stabilization, significantly improving the color saturation, color fastness, and hand feel of the finished product. The hot air circulating tunnel oven (continuous drying) operates as follows: fabrics continuously enter the preheating, high-temperature drying, and cooling zones via a mesh belt or chain plate, achieving automated assembly line operation.

[0003] The existing hot air circulating tunnel ovens mainly use mesh belts or chain plates to move the textile fabric in different working areas inside the tunnel oven. During the drying process, the textile fabric is simply laid flat on the mesh belt or chain plate for conveying. The textile fabric is in a relatively static state on the mesh belt or chain plate. However, this drying method is prone to uneven drying of the surface and inner layers of the fabric for thicker fabrics or fabrics that have been split, and requires a longer drying time.

[0004] For example, the aforementioned problems exist in patents (CN222528127U) and (CN223921848U); (CN222528127U) describes "a surface drying device for silk fabric processing, including a conveying mechanism and a frame; the top of the frame is fixed with the conveying mechanism, and the top of the conveying mechanism is provided with an extrusion structure; the top of the frame is fixed with a drying oven, and the top of the drying oven is equipped with a control module; the extrusion structure includes a first gear, a pressure shaft, a second gear, and a water collection tank"; (CN223921848U) describes "a double-sided ultra-soft short plush fabric drying device, including a dryer body, the drying..." The machine body is equipped with a cleaning structure, which includes a mounting shaft. The mounting shaft is rotatably connected to the dryer body, and a cleaning brush is detachably connected to the mounting shaft. A motor is mounted on the dryer body, and the mounting shaft is fixedly connected to the output shaft of the motor. A screw is threadedly connected to the mounting shaft, and a rotating rod is fixedly connected to the screw. The drying equipment in the two patents mentioned above are both hot air circulating tunnel ovens, and both use a mesh belt to transport the fabric to be dried. The textile fabric is in a relatively static state on the mesh belt. For thicker fabrics or fabrics that have been split, this can easily lead to uneven drying between the surface and inner layers of the fabric, and requires a longer drying time.

[0005] To address the problem that in the hot air circulating tunnel oven, textile fabrics are simply laid flat on a mesh belt or chain plate for conveying during the drying process, which can easily lead to uneven drying between the surface and inner layers of thicker fabrics or fabrics that have undergone fiber splitting, and requires a longer drying time, we propose a low-temperature differential post-treatment drying oven. Summary of the Invention

[0006] The purpose of this invention is to provide a low-temperature differential drying oven for post-processing to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a low-temperature differential post-processing drying oven, comprising a drying oven body and an extrusion dehydration mechanism, wherein the extrusion dehydration mechanism is located outside the inlet of the drying oven body, and the drying oven body is provided with rotatably connected pulse-type tapping mechanisms in the preheating zone, high-temperature drying zone and cooling zone respectively, and the drying oven body is provided with guide roller mechanisms on both sides of the pulse-type tapping mechanisms, and the outer wall of the drying oven body is provided with clamping roller mechanisms on the outer side of the inlet and outlet respectively; and the top of the inner wall of the drying oven body is provided with an air distribution mechanism at the hot air outlet.

[0008] Furthermore, the pulse-type tapping mechanism includes a horizontally arranged support shaft, which is rotatably located inside the main body of the drying oven. Several support frames are provided on the outer wall of the support shaft. A support roller is rotatably connected to one end of each support frame away from the support shaft. The support frames are perpendicular to the support shaft, and the support rollers are parallel to the support shaft. Adjacent support rollers have different outer diameters. The pulse-type tapping mechanism also includes a servo motor and a reducer. The servo motor is connected to one end of the support shaft via the reducer, and the servo motor and reducer are fixedly located on the outside of the main body of the drying oven.

[0009] Furthermore, four support frames are provided on the outer wall of the support shaft. The four support frames are distributed in a cross shape on the outside of the support shaft, and the outer diameter of the support rollers on the outer walls of two support frames located on the same straight line is the same.

[0010] Furthermore, the guide roller mechanism includes a first guide roller and a second guide roller. The first guide roller and the second guide roller are rotatably connected to the inner wall of the drying oven body. The first guide roller and the second guide roller are parallel to each other with the support roller. The first guide roller is located above the second guide roller.

[0011] Furthermore, the three support shafts located inside the preheating zone, the high-temperature drying zone, and the cooling zone are arranged in an isosceles triangle, and the top horizontal height of at least one of the support shafts is below the bottom horizontal height of the second guide roller, while the bottom horizontal height of at least one of the support shafts is above the top horizontal height of the second guide roller.

[0012] Furthermore, the clamping roller mechanism includes a mounting frame, a first clamping roller, and a second clamping roller. The top two ends of the mounting frame are respectively provided with a first linear drive mechanism. Both ends of the first clamping roller and the second clamping roller are respectively provided with rotatably connected bearing seats. The second clamping roller is located above the first clamping roller. The bearing seats at both ends of the first clamping roller are fixedly connected to the inner wall of the mounting frame. The bearing seats at both ends of the second clamping roller are respectively fixedly connected to the output ends of the two first linear drive mechanisms.

[0013] Furthermore, the extrusion dehydration mechanism includes a water collection tank, a dehydration frame, and an extrusion roller. The dehydration frame is located on the top of the inner side of the water collection tank, and the extrusion roller is located above the dehydration frame. Each end of the extrusion roller is provided with a rotatably connected support block. A second linear drive mechanism is vertically provided on the top of the support block. The second linear drive mechanism is fixedly connected to the top of the water collection tank through a fixed frame.

[0014] Furthermore, a top roller is horizontally connected to the bottom center of the inner wall of the dehydration rack, and fixed shafts are symmetrically arranged on both sides of the top roller on the inner wall of the dehydration rack. An L-shaped frame is rotatably connected to the outer wall of the fixed shaft, and dehydration rollers are horizontally arranged at both ends of the L-shaped frame.

[0015] Furthermore, the L-shaped frame is rotatably connected to the fixed shaft via a bushing, and a torsion spring is provided between the inner wall of the bushing and the outer wall of the fixed shaft; the outer wall of the dewatering roller on the L-shaped frame away from the main inlet of the drying oven is a spiral structure, and the spiral directions of the two spiral structures are opposite; the outer wall of the dewatering roller on the L-shaped frame near the main inlet of the drying oven is a smooth roller structure.

[0016] Furthermore, the air distribution mechanism includes an umbrella-shaped disk, a first vortex fan structure, and a second vortex fan structure. The umbrella-shaped disk is located above the first vortex fan structure, and the first vortex fan structure is located between the umbrella-shaped disk and the first vortex fan structure. The top center of the umbrella-shaped disk has a first opening, and the top of the umbrella-shaped disk has several second openings outside the first opening. The umbrella-shaped disk is fixedly located at the bottom of the hot air outlet.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are: This invention comprises a drying oven body, a squeezing and dehydrating mechanism, a pulse-beating mechanism, a guide roller mechanism, a clamping roller mechanism, and an air distribution mechanism. The squeezing and dehydrating mechanism squeezes and dehydrates the fabric before it enters the drying oven, expelling most of the water. The pulse-beating mechanism pulses and beats the fabric, causing it to pulsate up and down within the preheating, high-temperature drying, and cooling zones. This allows water to quickly separate from thicker fabrics and fabrics that have undergone fiber splitting, improving the drying uniformity of both the surface and inner layers and effectively shortening the drying time. The air distribution mechanism is located on the top of the inner wall of the drying oven. The hot air outlet of the drying oven provides uniform air distribution to the preheating or high-temperature drying zone, effectively improving the uniformity of hot air distribution inside the oven and resulting in a more even temperature distribution. This also effectively reduces temperature differences within individual areas of the oven. The rotation of the support shaft drives the support frame to rotate, and the support rollers move in a circular motion around the support shaft with the support frame. The support rollers strike the fabric surface with different circumferential outer diameters, resulting in varying striking forces between adjacent support rollers, thus achieving pulse-like striking of the fabric. The rotation of the support rollers while striking the fabric surface effectively prevents damage to the fabric.

[0018] This invention features a squeezing and dehydration mechanism comprising a water collection tank, a dehydration frame, and squeezing rollers. The water collection tank, located below the dehydration frame, collects the water released from the fabric during squeezing. The fabric undergoes squeezing and dehydration between the dehydration frame and the squeezing rollers, with the released water falling directly into the water collection tank. The bottom sides of the outer wall of the squeezing rollers contact and press down on the dehydration rollers at one end of two L-shaped frames. Under the pressure of the squeezing rollers and the L-shaped frames, these dehydration rollers swing downwards in an arc along a fixed axis, causing the dehydration rollers at the other end of the L-shaped frames to swing upwards in an arc along the fixed axis. The dewatering rollers at both ends are simultaneously pressed against the outer wall of the squeezing roller; the dewatering rollers at both ends of the two L-shaped frames squeeze and dewater the fabric at four positions outside the squeezing roller, and the top roller squeezes and dewaters the fabric at the bottom center outside the squeezing roller. The fabric is squeezed and dewatered simultaneously at five positions outside the squeezing roller, which can effectively improve the squeezing and dewatering effect of the fabric; the torsion spring provides torsional support between the bushing and the fixed shaft, so that the L-shaped frame can be adjusted by overall elastic swing along the fixed shaft. At the same time, the L-shaped frame can rebound and reset after losing the pressure of the squeezing roller. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2This is a schematic diagram of the pulse-type tapping mechanism, guide roller mechanism, and clamping roller mechanism of the present invention; Figure 3 This is a schematic diagram of the pulse-type tapping mechanism of the present invention; Figure 4 This is a schematic diagram of the guide roller mechanism of the present invention; Figure 5 This is a schematic diagram of the clamping roller mechanism of the present invention; Figure 6 This is a schematic diagram of the extrusion dehydration mechanism of the present invention; Figure 7 This is a schematic diagram of the internal structure of the dewatering frame and the extrusion roller of the present invention; Figure 8 This is a schematic diagram of the dehydration rack of the present invention; Figure 9 This is a schematic diagram of the structure of the two L-shaped frames of the present invention; Figure 10 This is a schematic diagram of the air distribution mechanism of the present invention; Figure 11 This is a schematic diagram of the first and second turbofan structures of the present invention; In the diagram: 1. Drying oven body; 2. Extrusion dehydration mechanism; 201. Water collection tank; 202. Dehydration frame; 203. Extrusion roller; 204. Support block; 205. Second linear drive mechanism; 206. Top roller; 207. Fixed shaft; 208. L-shaped frame; 209. Dehydration roller; 210. Bushing; 3. Pulse-type beating mechanism; 301. Support shaft; 302. Support frame; 303. Support roller; 304. Servo motor; 305. Reducer; 4. Guide roller mechanism; 401. First guide roller; 402. Second guide roller; 5. Clamping roller mechanism; 501. Mounting frame; 502. First clamping roller; 503. Second clamping roller; 504. First linear drive mechanism; 505. Bearing housing; 6. Air distribution mechanism; 601. Umbrella-shaped disk; 602. First turbofan structure; 603. Second turbofan structure; 604. First opening; 605. Second opening. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1 Please see Figures 1-6 and Figures 10-11This invention provides a technical solution: a low-temperature differential drying oven, comprising a drying oven body 1 and an extrusion dehydration mechanism 2. The extrusion dehydration mechanism 2 is located outside the inlet of the drying oven body 1. Inside the drying oven body 1, in the preheating zone, high-temperature drying zone, and cooling zone, there are rotatably connected pulse-type beating mechanisms 3. Inside the drying oven body 1, on both sides of the pulse-type beating mechanisms 3, there are guide roller mechanisms 4. On the outer wall of the drying oven body 1, on the outside of the inlet and outlet, there are clamping roller mechanisms 5. At the hot air outlet, the top of the inner wall of the drying oven body 1, there is an air distribution mechanism 6. The pulse-type beating mechanism 3 includes a horizontally arranged support shaft 301, which is rotatably located inside the drying oven body 1. The outer wall of the support shaft 301 has several support frames 302. At the end of each support frame 302 away from the support shaft 301, there is a rotatably connected support roller 303. The support frame 302 is perpendicular to the support shaft 301, and the support roller 303 is parallel to the support shaft 301. Adjacent support frames 302 are connected to each other. The outer diameters of the support rollers 303 are different; the pulse-type beating mechanism 3 also includes a servo motor 304 and a reducer 305. The servo motor 304 is connected to one end of the support shaft 301 via the reducer 305. The servo motor 304 and the reducer 305 are fixedly installed on the outside of the drying oven body 1; four support frames 302 are provided on the outer wall of the support shaft 301. The four support frames 302 are arranged in a cross shape on the outside of the support shaft 301. The support rollers 303 on the outer walls of two support frames 302 located on the same straight line are... 03. The outer diameter dimensions are the same; the air distribution mechanism 6 includes an umbrella-shaped disk 601, a first turbine fan structure 602, and a second turbine fan structure 603. The umbrella-shaped disk 601 is located above the first turbine fan structure 602, and the first turbine fan structure 602 is located between the umbrella-shaped disk 601 and the first turbine fan structure 602. The top center of the umbrella-shaped disk 601 is provided with a first opening 604, and the top of the umbrella-shaped disk 601 is provided with a plurality of second openings 605 outside the first opening 604. The umbrella-shaped disk 601 is fixedly located at the bottom of the hot air outlet.

[0022] In one embodiment, the guide roller mechanism 4 includes a first guide roller 401 and a second guide roller 402. The first guide roller 401 and the second guide roller 402 are rotatably connected to the inner wall of the drying oven body 1. The first guide roller 401 and the second guide roller 402 are parallel to the support roller 303. The first guide roller 401 is located above the second guide roller 402. In the guide roller mechanism 4, the first guide roller 401 and the second guide roller 402 cooperate to guide and support the fabric to be dried. The fabric to be dried passes between the first guide roller 401 and the second guide roller 402. The first guide roller 401 and the second guide roller 402 provide auxiliary guidance, support and limit the fabric when it is patted by the pulse-type beating mechanism 3. The fabric located between the first guide roller 401 and the second guide roller 402 is guided and limited, and the pulse-type up-and-down fluctuation of the fabric is basically cut off here.

[0023] In one embodiment, the three support shafts 301 located within the preheating zone, high-temperature drying zone, and cooling zone are arranged in an isosceles triangle. The top horizontal height of at least one support shaft 301 is below the bottom horizontal height of the second guide roller 402, and the bottom horizontal height of at least one support shaft 301 is above the top horizontal height of the second guide roller 402. This limitation restricts the distribution of the three support shafts 301 to two configurations. The first configuration is where the support shaft 301 in the high-temperature drying zone is above the fabric to be dried, and the support shafts 301 in the preheating and cooling zones are below the fabric to be dried. In this case, the pulse-type beating mechanism 3 inside the high-temperature drying zone performs pulse-type beating on the fabric above it, causing the fabric inside the high-temperature drying zone to be patted from top to bottom. The first method involves a pulsed beating force that causes the fabric to be dried to pulsate upward and downward. The pulsed beating mechanism 3 inside the preheating and cooling zones performs pulsed beating work on the fabric below, causing the fabric inside the preheating and cooling zones to experience a pulsed beating force from bottom to top, resulting in pulsed upward and downward undulations. This coordinated action ensures that the fabric entering the drying oven undergoes different forms of pulsed upward and downward undulations in the preheating, high-temperature drying, and cooling zones, effectively improving the separation of water from the fabric. The second method involves a support shaft 301 located below the fabric in the high-temperature drying zone and above the fabric in the preheating and cooling zones. The pulsed upward and downward undulations of the fabric are the opposite of the first method, but with a similar effect.

[0024] In one embodiment, the clamping roller mechanism 5 includes a mounting frame 501, a first clamping roller 502, and a second clamping roller 503. The mounting frame 501 has first linear drive mechanisms 504 vertically mounted at both ends of its top. The first clamping roller 502 and the second clamping roller 503 each have rotatably connected bearing seats 505 at both ends. The second clamping roller 503 is positioned above the first clamping roller 502. The bearing seats 505 at both ends of the first clamping roller 502 are fixedly connected to the inner wall of the mounting frame 501. The bearing seats 505 at both ends of the second clamping roller 503 are fixedly connected to the output ends of the two first linear drive mechanisms 504. The mounting frame 501 supports the first clamping roller 502 and the first linear drive mechanisms. The bearing seat 504 provides support, and the bearing housing 505 provides rotational support for the first clamping roller 502 and the second clamping roller 503. The linear motion adjustment of the first linear drive mechanism 504 can realize the lifting and lowering adjustment of the second clamping roller 503, so that the first clamping roller 502 and the second clamping roller 503 can clamp the fabric, ensuring the stability of the fabric being conveyed into and removed from the drying oven. The connection method, lubrication design, sealing design, and waterproof design of the bearing housing 505 and the first clamping roller 502 and the second clamping roller 503 can directly adopt existing mature designs. The above content is common knowledge in the field and is not an improvement of the present invention. Therefore, it has not been explained in detail.

[0025] Working principle of the invention: Refer to the instruction manual appendix Figures 1-6 and Figures 10-11This invention comprises a drying oven body 1, a squeezing and dehydrating mechanism 2, a pulse-beating mechanism 3, a guide roller mechanism 4, a clamping roller mechanism 5, and an air distribution mechanism 6. The drying oven body 1 provides the main structure of a hot air circulating tunnel oven. The squeezing and dehydrating mechanism 2 squeezes and dehydrates the fabric before it enters the drying oven, expelling most of the water. After squeezing and dehydration, the fabric enters the drying oven. The pulse-beating mechanism 3 performs pulse-beating on the fabric in the preheating zone, high-temperature drying zone, and cooling zone, causing the fabric to pulse and oscillate within these zones. This allows water to quickly separate from thicker fabrics and fabrics that have undergone fiber splitting, thereby improving the drying uniformity of the fabric's surface and inner layers. It can effectively shorten the drying time; the up-and-down movement of the fabric can also push the hot air inside the drying oven up and down, which can accelerate the movement speed of the hot air inside the drying oven, effectively improve the mixing effect of the hot air inside the drying oven, and effectively reduce the temperature difference inside the drying oven; the guide roller mechanism 4 guides and supports the fabric on both sides of the pulse-type beating mechanism 3; the clamping roller mechanism 5 clamps the fabric at the entrance and exit of the drying oven, ensuring the stability of the fabric conveying into and out of the drying oven; the air distribution mechanism 6 evenly distributes the hot air entering the preheating zone or high-temperature drying zone at the hot air outlet at the top of the inner wall of the drying oven, which can effectively improve the uniformity of the hot air distribution inside the drying oven, making the temperature distribution inside the drying oven more uniform, and effectively reducing the temperature difference in a single area of ​​the drying oven. The guide roller mechanism 4 located on both sides of the pulse-type beating mechanism 3 provides a ripple range for the pulse-type up-and-down ripple of the fabric. The fabric performs a segmented pulse-type up-and-down ripple motion, so that the fabric ripples between the two guide roller mechanisms 4. This can effectively ensure the pulse-type ripple effect applied by the pulse-type beating mechanism 3 to the fabric, and avoid the ripple range being too long, which would reduce the frequency of the fabric's pulse-type up-and-down ripple. In this invention, the internal conveyor belt and chain plate are discarded, and the guide roller mechanism 4 and clamping roller mechanism 5 are used to clamp and guide the fabric into the drying oven. Through the above modification, the fabric that was originally laid flat on the conveyor belt or chain plate is changed to a guide roller support design. The fabric inside the drying oven is mostly in a suspended state. The pulse beating mechanism 3 performs pulse beating work on the suspended fabric, so that the fabric pulsates up and down in the preheating zone, high temperature drying zone and cooling zone, so that water can be quickly separated from the fabric in thicker fabrics and fabrics after fiber opening. In the pulse-type beating mechanism 3, the support shaft 301 provides fixed support for the support frame 302. The support frame 302 provides overhead support and rotational support for the support roller 303. The servo motor 304 drives the support shaft 301 to rotate via the reducer 305. The rotation of the support shaft 301 drives the support frame 302 to rotate. The support roller 303 moves in a circular motion around the support shaft 301 along with the support frame 302. During the circular motion of the support roller 303, it beats the fabric surface, which can realize the beating treatment of the fabric during the drying process. When the support roller 303 beats the fabric surface, it rotates, which can effectively avoid damage to the fabric. When no two adjacent support rollers 303 are in contact with the fabric, the fabric is in the wave-like rebound and reset stage. By designing adjacent support rollers 303 with different outer diameters, while maintaining the same dimensions for the support frame 302, the distance between the rotation center of the support roller 303 and the outer wall of the support shaft 301 remains constant during the rotation of the support shaft 301. Because the outer diameters of adjacent support rollers 303 differ, the outer diameter of each support roller 303 around the support shaft 301 changes with its circumference. During the rotation of the support shaft 301, the support rollers 303 strike the fabric surface with different circumferential outer diameters, resulting in varying striking forces between adjacent support rollers 303, thus achieving a pulse-like striking effect on the fabric. Simultaneously, this design ensures that the support roller 303 with the smallest outer diameter can effectively strike the fabric. Four support frames 302 are designed on the outer wall of the support shaft 301, arranged in a cross shape on the outside of the support shaft 301. The outer diameter of the support rollers 303 on the outer walls of two support frames 302 located on the same straight line is the same. Through the above design, the support rollers 303 on the four support frames 302 alternately beat the fabric. The four support rollers 303 present two sets of beating work with different sizes. During the rotation of the support shaft 301, the support rollers 303 perform two sets of continuous cyclic beating work on the fabric, so that the fabric presents two regular pulse-like up and down fluctuations with two impact forces, which can effectively ensure the rapid removal of water from the fabric. The umbrella-shaped disc 601 in the air distribution mechanism 6 receives and conducts umbrella-shaped diversion treatment on the conveyed hot air above the first vortex fan structure 602 and the second vortex fan structure 603, causing the hot air to spread from the center to the periphery. The hot air passes through the first opening 604 and the second opening 605 at the top of the umbrella-shaped disc 601 and moves towards the first vortex fan structure 602. The first vortex fan structure 602 conducts the first-stage vortex fan diversion and dispersion treatment on the hot air. After the hot air undergoes the first-stage vortex fan diversion and dispersion treatment, it impacts on the surface of the second vortex fan structure 603. The second vortex fan structure 603 conducts the second-stage vortex fan diversion and dispersion treatment on the hot air. When the hot air enters the preheating zone and the high-temperature drying zone inside the drying furnace after undergoing umbrella-shaped diffusion and double-stage vortex fan diversion and dispersion treatment, the hot air distribution is more uniform, which can effectively improve the uniformity of the hot air distribution entering the drying furnace, make the temperature distribution inside the drying furnace more uniform, and effectively reduce the temperature difference inside a single area of the drying furnace; After abandoning the design of the mesh belt and chain plate structure, when the fabric is first loaded onto the equipment, the loading work needs to be carried out through a sheet material preset inside the drying furnace and extending outside the drying furnace: The sheet material passes through the squeezing and dewatering mechanism 2, the clamping roller mechanism 5 at the entrance of the drying furnace, multiple guiding roller mechanisms 4 inside the drying furnace body 1, and the clamping roller mechanism 5 at the exit of the drying furnace in sequence, and there is a surplus at both ends of the sheet material; During loading, the end of the fabric to be processed and the sheet material outside the squeezing and dewatering mechanism 2 are assembled and connected (can be sewn together or fixed and assembled in other ways), and then the sheet material outside the clamping roller mechanism 5 at the exit of the drying furnace is pulled by a winding device or other traction devices, so that the sheet material passes through the drying furnace body 1. At the same time, the fabric also enters the drying furnace body 1 along with the sheet material, and it is ensured that the fabric can be normally removed from the inside of the drying furnace body 1; For subsequent fabric processing, the fabric can enter and exit the drying furnace body 1 inside the present invention in the same way as the above-mentioned fabric and sheet material to ensure normal operation; In the present invention, the structures supporting the drying furnace body 1 (such as: hot air supply equipment, hot air circulation equipment, temperature detection equipment, temperature control equipment, and partition isolation supporting components between the preheating zone, high-temperature drying zone, and cooling zone, etc.) can all directly adopt existing mature supporting equipment; The first linear drive mechanism 504 can be a servo electric cylinder, a hydraulic cylinder, or a pneumatic cylinder, and specific limitations are not made here. Its synchronous control system and asynchronous control system can both be selected and configured according to needs using existing mature control technologies; For the transmission connection method of the servo motor 304, the reducer 305, and the support shaft 301, its transmission design and lubrication design, etc. can all directly adopt existing mature designs. The rotational connection method, seal design, high-temperature resistance design, etc. between the support shaft 301 and the drying furnace body 1 can all directly adopt existing mature designs. The above contents are common knowledge in the field and are not the improvement objects of the present invention. Therefore, no detailed explanation is provided.

[0026] Embodiment 2 Please see Figure 1 and Figures 6-9 The present invention provides a technical solution: a low-temperature differential post-processing drying oven, wherein the extrusion dehydration mechanism 2 includes a water collection tank 201, a dehydration frame 202, and an extrusion roller 203. The dehydration frame 202 is located on the top inner side of the water collection tank 201, and the extrusion roller 203 is located above the dehydration frame 202. Support blocks 204 are rotatably connected to both ends of the extrusion roller 203. A second linear drive mechanism 205 is vertically mounted on the top of the support block 204, and the second linear drive mechanism 205 is fixedly connected to the top of the water collection tank 201 via a fixing frame. A top roller 206 is horizontally rotatably connected to the center of the bottom of the inner wall of the dehydration frame 202. 02 The inner wall is symmetrically provided with fixed shafts 207 on both sides of the top roller 206. The outer wall of the fixed shaft 207 is fitted with an L-shaped frame 208 that is rotatably connected. Both ends of the L-shaped frame 208 are horizontally provided with dewatering rollers 209. The L-shaped frame 208 is rotatably connected to the fixed shaft 207 through a bushing 210, and a torsion spring is provided between the inner wall of the bushing 210 and the outer wall of the fixed shaft 207. The outer wall of the dewatering roller 209 on the L-shaped frame 208 on the side away from the inlet of the drying oven body 1 has a spiral structure, and the spiral directions of the two spiral structures are opposite. The outer wall of the dewatering roller 209 on the L-shaped frame 208 on the side close to the inlet of the drying oven body 1 has a smooth roller structure.

[0027] Working principle of the invention: Refer to the instruction manual appendix Figure 1 and Figures 6-9 The present invention provides a squeezing and dehydrating mechanism 2, which includes a water collection tank 201, a dehydrating frame 202, and a squeezing roller 203. The water collection tank 201 collects the water liquid squeezed off the fabric below the dehydrating frame 202. The dehydrating frame 202 supports the lower surface of the fabric for dehydration below the squeezing roller 203. The squeezing roller 203 performs downward squeezing and dehydrating work on the upper surface of the fabric above the dehydrating frame 202. The fabric is squeezed and dehydrated between the dehydrating frame 202 and the squeezing roller 203, and the separated water liquid falls directly into the water collection tank 201. The support block 204 provides rotational support to both ends of the extrusion roller 203, ensuring that the extrusion roller 203 can rotate normally when extruding the fabric, thereby ensuring that the fabric can be normally conveyed into the drying oven for drying during the extrusion and dehydration process; the linear motion adjustment of the second linear drive mechanism 205 can drive the support block 204 to perform lifting and lowering adjustment, thereby driving the extrusion roller 203 to perform lifting and lowering adjustment, realizing the adjustment of the extrusion pressure of the extrusion roller 203 on the fabric, and also adjusting the distance between the extrusion roller 203 and the dehydration rack 202; The top roller 206 provides limiting support for the squeezing roller 203 at the bottom center of the inner wall of the dewatering frame 202, which is the limit position for the bottom movement of the squeezing roller 203; the fixed shaft 207 supports the L-shaped frame 208, and dewatering rollers 209 are arranged at both ends of the L-shaped frame 208. The dewatering rollers 209 squeeze and dewater the fabric outside the squeezing roller 203. As the extrusion roller 203 moves downward, it enters the inner side of the arc-shaped structure of the dewatering frame 202. With continued downward movement, the bottom sides of the outer wall of the extrusion roller 203 contact and press down on the dewatering rollers 209 at one end of the two L-shaped frames 208. Under the pressure of the extrusion roller 203 and the L-shaped frames 208, the dewatering rollers 209 at these points swing downwards in an arc along the fixed axis 207, causing the dewatering rollers 209 at the other end of the L-shaped frames 208 to swing upwards in an arc along the fixed axis 207. When the dewatering rollers 209 at both ends of the L-shaped frames 208 simultaneously press against the outer wall of the extrusion roller 203, the extrusion... Roller 203 is moved down to its lowest position (this position can be determined by the installation spacing of the two fixed shafts 207, the size of the L-shaped frame 208, the outer diameter of the dewatering roller 209 and the outer diameter of the squeezing roller 203, and the top position of the top roller 206 is also arranged at this position); the dewatering rollers 209 at both ends of the two L-shaped frames 208 squeeze and dewater the fabric at four positions outside the squeezing roller 203, and the top roller 206 squeezes and dewaters the fabric at the bottom center outside the squeezing roller 203. Squeezing and dewatering the fabric at five positions outside the squeezing roller 203 at the same time can effectively improve the squeezing and dewatering effect of the fabric; The torsion spring provides torsional support between the bushing 210 and the fixed shaft 207, allowing the L-shaped frame 208 to be adjusted by overall elastic swing along the fixed shaft 207. At the same time, after the L-shaped frame 208 loses the pressure of the squeezing roller 203, it can rebound and reset, so that the dewatering rollers 209 at both ends of the L-shaped frame 208 can still squeeze and dewater the fabric at two parallel positions on the outer arc surface of the squeezing roller 203 when it is used again. The dewatering roller 209, located on the L-shaped frame 208 on the side away from the inlet of the drying oven body 1, has a spiral structure on its outer wall, with the two spiral structures having opposite directions. The spiral dewatering roller 209 performs a spiral double-squeezing dewatering treatment on the fabric outside the squeezing roller 203, away from the inlet of the drying oven body 1. While squeezing and dewatering the fabric surface, the spiral dewatering roller 209 also performs a spiral combing treatment on the fabric surface. A large amount of water in the fabric is discharged downwards along the gap between the squeezing roller 203 and the spiral structure, making it easier to squeeze out the water from the fabric. The spiral direction of the two spiral structures is designed... Conversely, after being processed by the two dewatering rollers 209, the fabric surface texture exhibits a double spiral interlaced distribution. A large amount of water in the fabric is discharged downwards along the gap between the extrusion roller 203 and the spiral structure, making it easier to squeeze out the water in the fabric. The outer wall of the dewatering roller 209 located on the L-shaped frame 208 near the inlet of the main body 1 of the drying oven is a smooth roller structure. Before the fabric enters the drying oven, the dewatering roller 209 with a smooth roller structure performs extrusion and dewatering treatment on the fabric, ensuring that the dewatering roller 209 performs full-coverage extrusion and dewatering treatment on the fabric, which can effectively ensure the comprehensiveness of extrusion and dewatering of the fabric surface. The bottom of the water collection tank 201 is also equipped with drainage accessories. The water collection tank 201 is located above the dehydration frame 202 and the squeeze roller 203 and can also be equipped with an openable and closable protective cover accessory. The second linear drive mechanism 205 can be a servo electric cylinder, hydraulic cylinder or pneumatic cylinder. There is no specific limitation here. Its synchronous control system and asynchronous control system can be conventionally selected and operated using existing mature control technologies as needed. The connection method, lubrication design, sealing design and waterproof design of the squeeze roller 203 and the support block 204, the top roller 206 and the dehydration frame 202, the fixed shaft 207 and the dehydration frame 202, and the fixed shaft 207 and the bushing 210 can directly adopt existing mature designs. The above contents are common knowledge in the field and are not the object of improvement of the present invention. Therefore, they are not explained in detail.

[0028] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 low-temperature differential drying oven, comprising a drying oven body (1) and an extrusion dehydration mechanism (2), characterized in that: The extrusion dehydration mechanism (2) is located outside the inlet of the drying furnace body (1). The drying furnace body (1) is equipped with a rotatably connected pulse-type tapping mechanism (3) inside the preheating zone, high-temperature drying zone, and cooling zone. The drying furnace body (1) is equipped with guide roller mechanisms (4) on both sides of the pulse-type tapping mechanism (3). The drying furnace body (1) is equipped with clamping roller mechanisms (5) on the outer wall of both the inlet and outlet. The drying furnace body (1) is equipped with an air distribution mechanism (6) at the hot air outlet at the top of its inner wall. The pulse-type tapping mechanism... The striking mechanism (3) includes a horizontally arranged support shaft (301), which is rotatably located inside the main body (1) of the drying oven. Several support frames (302) are provided on the outer wall of the support shaft (301). A support roller (303) is rotatably connected to one end of each support frame (302) away from the support shaft (301). The support frame (302) is perpendicular to the support shaft (301), and the support roller (303) is parallel to the support shaft (301). The outer diameters of two adjacent support rollers (303) are different. The pulse-type... The tapping mechanism (3) also includes a servo motor (304) and a reducer (305). The servo motor (304) is connected to one end of the support shaft (301) via the reducer (305). The servo motor (304) and the reducer (305) are fixedly mounted on the outside of the drying oven body (1). The guide roller mechanism (4) includes a first guide roller (401) and a second guide roller (402). The first guide roller (401) and the second guide roller (402) are rotatably connected to the inner wall of the drying oven body (1). (401) and the second guide roller (402) are both parallel to each other with the support roller (303). The first guide roller (401) is located above the second guide roller (402). The three support shafts (301) located inside the preheating zone, the high-temperature drying zone and the cooling zone are arranged in an isosceles triangle. The top horizontal height of at least one support shaft (301) is below the bottom horizontal height of the second guide roller (402), and the bottom horizontal height of at least one support shaft (301) is above the top horizontal height of the second guide roller (402).

2. The low-temperature differential drying oven according to claim 1, characterized in that: Four support frames (302) are provided on the outer wall of the support shaft (301). The four support frames (302) are distributed in a cross shape on the outside of the support shaft (301). The outer diameter of the support rollers (303) on the outer walls of the two support frames (302) located on the same straight line is the same.

3. The low-temperature differential drying oven according to claim 1, characterized in that: The clamping roller mechanism (5) includes a mounting frame (501), a first clamping roller (502), and a second clamping roller (503). The mounting frame (501) has a first linear drive mechanism (504) vertically installed at both ends of its top. The first clamping roller (502) and the second clamping roller (503) are each provided with a rotatably connected bearing seat (505). The second clamping roller (503) is located above the first clamping roller (502). The bearing seats (505) at both ends of the first clamping roller (502) are fixedly connected to the inner wall of the mounting frame (501). The bearing seats (505) at both ends of the second clamping roller (503) are fixedly connected to the output ends of the two first linear drive mechanisms (504).

4. The low-temperature differential drying oven according to claim 1, characterized in that: The extrusion dehydration mechanism (2) includes a water collection tank (201), a dehydration frame (202), and an extrusion roller (203). The dehydration frame (202) is located on the top of the inner side of the water collection tank (201), and the extrusion roller (203) is located above the dehydration frame (202). The two ends of the extrusion roller (203) are respectively provided with rotatably connected support blocks (204). The top of the support block (204) is vertically provided with a second linear drive mechanism (205). The second linear drive mechanism (205) is fixedly connected to the top of the water collection tank (201) through a fixed frame.

5. The low-temperature differential drying oven according to claim 4, characterized in that: The dehydration rack (202) has a top roller (206) horizontally connected to the bottom center of the inner wall. The inner wall of the dehydration rack (202) has fixed shafts (207) symmetrically arranged on both sides of the top roller (206). The outer wall of the fixed shaft (207) is fitted with an L-shaped frame (208) that is rotatably connected. Both ends of the L-shaped frame (208) are respectively provided with dehydration rollers (209).

6. The low-temperature differential drying oven according to claim 5, characterized in that: The L-shaped frame (208) is rotatably connected to the fixed shaft (207) through the bushing (210), and a torsion spring is provided between the inner wall of the bushing (210) and the outer wall of the fixed shaft (207); the outer wall of the dewatering roller (209) on the L-shaped frame (208) away from the inlet of the drying oven body (1) is a spiral structure, and the spiral directions of the two spiral structures are opposite; the outer wall of the dewatering roller (209) on the L-shaped frame (208) near the inlet of the drying oven body (1) is a smooth roller structure.

7. The low-temperature differential drying oven according to claim 1, characterized in that: The air distribution mechanism (6) includes an umbrella-shaped disk (601), a first turbofan structure (602), and a second turbofan structure (603). The umbrella-shaped disk (601) is located above the first turbofan structure (602), and the first turbofan structure (602) is located between the umbrella-shaped disk (601) and the first turbofan structure (602). The top center of the umbrella-shaped disk (601) is provided with a first opening (604), and the top of the umbrella-shaped disk (601) is provided with a plurality of second openings (605) outside the first opening (604). The umbrella-shaped disk (601) is fixedly located at the bottom of the hot air outlet.

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