Drying equipment for glass fiber cloth

Abstract

The invention belongs to the technical field of glass fiber cloth processing, and particularly relates to drying equipment for glass fiber cloth, the drying equipment comprises a drying box body, conveying rollers, a conveying assembly, a powder feeding box, a bushing plate, an elastic piece, a rotating shaft and a convex disc, a plurality of upper conveying rollers and a plurality of lower conveying rollers are synchronously driven by the conveying assembly to rotate in different directions, and the powder feeding box is driven by the elastic piece to rotate. A powder feeding box is arranged on the feeding side of the drying box body, a through hole is formed in the lower portion of the powder feeding box, the leakage plate slides on the lower portion of the powder feeding box, an elastic piece is connected between the leakage plate and the powder feeding box, the rotating shaft is rotationally arranged on the drying box body, and one end of the rotating shaft is connected with a protruding disc matched with the leakage plate in a contact mode. When the conveying roller conveys the wetted glass fiber cloth, the convex disc intermittently extrudes the leakage plate, so that talcum powder intermittently falls to different positions of the glass fiber cloth automatically and synchronously, liquid on the surface of the glass fiber cloth is evenly covered, liquid adhesion is avoided, and the automation degree is high.

Description

Technical Field

[0001] The invention belongs to the technical field of glass fiber cloth processing, and in particular relates to a drying device for glass fiber cloth. Background Art

[0002] Glass fiber cloth is a composite material made of glass fiber. It has the advantages of light weight, high strength, good toughness, corrosion resistance, high temperature resistance, etc. It is an ideal structural material. When producing glass fiber cloth, its surface needs to be treated with a wetting agent, that is, the original glass fiber yarn is soaked in resin to increase its processability and wetting properties; after the wetting agent treatment, it needs to be dried in time to shape it to avoid adhesion and loss.

[0003] For example, the patent with patent publication number CN114279194B and publication date 2022-12-16 discloses a glass fiber cloth dryer. Like most drying equipment, it simply dries by conveying and heating. However, due to the limited heating efficiency, liquid will adhere to the conveying roller during the initial conveying process, which will affect the dryer over time. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a drying device for glass fiber cloth that can dry glass fiber cloth soaked in liquid and prevent the residual liquid on the glass fiber cloth from adhering to the conveying roller during soaking to avoid causing any impact.

[0005] In order to solve the above technical problems, the present invention provides a drying device for glass fiber cloth, including a drying box, a drying hot air blower, a conveying roller, a conveying assembly, a powder box, a leak plate, an elastic member, a rotating shaft and a convex plate. A plurality of drying hot air blowers evenly spaced are installed on the upper part of the drying box. A plurality of conveying rollers alternately arranged up and down in a left-right manner are rotatably arranged between the front and rear sides of the drying box. The plurality of conveying rollers above and the plurality of conveying rollers below are synchronously driven in different rotation directions by the conveying assembly to realize the conveying of the glass fiber cloth. The upper conveying roller rotates clockwise, and the lower conveying roller rotates counterclockwise. The conveying assembly is arranged between the drying box and the conveying roller. The left side of the drying box is the feeding side. The feeding side of the drying box is provided with a powder box suitable for loading talcum powder. A through hole is opened at the lower part of the powder box. The leak plate slides at the lower part of the powder box. The leak hole on the leak plate has a corresponding state corresponding to the through hole on the powder box and a staggered state staggered from the through hole on the powder box. An elastic member for resetting the leak plate after sliding is connected between the leak plate and the powder box. The elastic member is a spring. The rotating shaft is rotatably arranged at the upper left part of the drying box. One end of the rotating shaft is connected with a convex disk that contacts and cooperates with the leak plate. One of the multiple conveying rollers is driven by a flat belt and the rotating shaft.

[0006] Preferably, it also includes a loosening rod and a cover plate. The upper part of the leakage plate is connected to multiple loosening rods that slide through the upper powder box. The elastic member surrounds the loosening rod. The upper part of the upper powder box is slidably provided with a cover plate. The lower side of the cover plate is connected to a rod-shaped component with a protrusion extending toward the interior of the upper powder box.

[0007] Preferably, it also includes a lower powder box and a convex roller. A lower powder box located below the upper powder box is provided on the feeding side of the drying box. The lower powder box is suitable for loading talcum powder. The convex roller moves inside the lower powder box and is connected to the rotating shaft. The convex roller is wrapped with a cotton sleeve.

[0008] Preferably, it also includes a material receiving plate and a return spring. The inner bottom of the lower powder box is slidably provided with a material receiving plate. Three return springs are arranged evenly at front and back intervals between the material receiving plate and the lower powder box. The material receiving plate is located in the rotation path of the convex roller.

[0009] Preferably, it also includes an electric winding wheel, a rope and a fiber cloth clamp. Two electric winding wheels opposite to each other are installed on the upper front and upper rear parts of the drying box body, and a rope is wound between the two opposite electric winding wheels. Line guide grooves that pass over the upper conveying roller and under the lower conveying roller are opened on the front and rear inner sides of the upper part of the drying box body. The rope is arranged along the line guide groove, and a fiber cloth clamp that slides in the line guide groove is provided between the two ropes.

[0010] Preferably, the fiber cloth clamp includes a connecting shaft, a lower clamp, an upper clamp, a compression spring and an electromagnet. The two ropes are connected to a connecting shaft that slides in the line guide groove. A lower clamp for fitting the lower side of the glass fiber cloth is provided between the two connecting shafts that are close to each other. An upper clamp with a predetermined space between the lower clamp and the upper clamp is slidably provided. The predetermined space is used for the glass fiber cloth to pass through. A compression spring is provided between the upper clamp and the lower clamp for resetting the upper clamp after sliding. The electromagnet is installed on the lower clamp, and the electromagnet cooperates with the upper clamp by magnetic attraction.

[0011] Preferably, the lower splint rotates on the connecting shaft, the shape of the lower splint is triangular and the upper and lower parts are made of different materials, wherein the lower part of the lower splint is heavier than the upper part of the lower splint, the lower part of the lower splint is made of iron, and the upper part of the lower splint is made of plastic.

[0012] Preferably, the conveying assembly includes a motor, a limiting sprocket, an annular sprocket and a chain. The motor is installed on the upper right front side of the drying box body. The output shaft of the motor is connected to the upper right conveying roller. A limiting sprocket is rotatably provided on the drying box body. The end of the conveying roller is connected to the annular sprocket. The upper annular sprocket and the limiting sprocket are meshed with a chain that meshes with the upper side of the lower annular sprocket.

[0013] Preferably, it also includes a bottom frame, a scraper plate, a contraction spring, a push-pull rod and a lever. The bottom frame is connected to the lower side of the drying box body, and a scraper plate is slidably provided on the bottom frame. Two front-to-back contraction springs are connected between the scraper plate and the bottom frame. A push-pull rod that slides through the bottom frame is connected to the scraper plate. The push-pull rod is in the shape of an upwardly bent L, and a lever for pushing the push-pull rod is connected to the chain.

[0014] Preferably, it also includes a collection frame, a guide rod, a scraper and a connecting spring. The scraper plate is tilted, and the rear end of the scraper plate is tilted to the right. Two left and right opposite collection frames are slidably provided on the bottom frame. Two opposite guide rods are connected to the collection frame. The guide rods are tilted in a direction opposite to the tilt direction of the scraper plate. A scraper is slidably provided on one end of the guide rod close to the scraper plate, wherein the scraper on the left guide rod is located at the front end of the left guide rod, and the scraper on the right guide rod is located at the rear end of the right guide rod. A connecting spring is connected between the scraper and the bottom frame and surrounds the guide rod for resetting the scraper after sliding.

[0015] The present invention overcomes the shortcomings of the prior art and can achieve the following beneficial effects: 1. When the conveyor roller conveys the soaked glass fiber cloth, the convex plate will intermittently squeeze the leak plate, so that the talcum powder will automatically and synchronously fall to different positions of the glass fiber cloth intermittently, thereby evenly covering the liquid on the surface of the glass fiber cloth to avoid liquid adhesion, with a high degree of automation.

[0016] 2. The loosening rod automatically loosens the talcum powder when the leaking plate is unloaded. The rod-shaped component on the cover plate automatically loosens the talcum powder after adding the talcum powder, so as to avoid the talcum powder blockage and facilitate the discharge of talcum powder.

[0017] 3. The lower powder box and the convex roller will cooperate with the upper powder box to apply powder to the lower and upper sides of the glass fiber cloth respectively, so that the steps of conveying, upper side powdering and lower side powdering are carried out simultaneously, thereby ensuring the powdering area. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an assembly schematic diagram of the present invention.

[0019] Figure 2 It is a schematic diagram of the glass fiber cloth in the prior art and the conveying roller of the present invention.

[0020] Figure 3 It is a partial schematic diagram of the present invention.

[0021] Figure 4 Schematic diagram of the upper powder box and the lower powder box of the present invention.

[0022] Figure 5 It is a schematic diagram of the bushing of the present invention.

[0023] Figure 6 Schematic diagram of the cover plate of the present invention.

[0024] Figure 7 It is a schematic diagram of the lower powder box of the present invention.

[0025] Figure 8 It is an exploded view of the present invention.

[0026] Fig. 9 It is a schematic diagram of the cord and fiber cloth clamp of the present invention, including a partial structure of the drying box.

[0027] Fig.10 It is a partial schematic diagram of the fiber cloth clamp of the present invention.

[0028] Fig.11 It is a schematic diagram of the bottom frame and the scraper plate of the present invention.

[0029] Fig.12 It is a schematic diagram of the scraper blade of the present invention cooperating with the scraper plate.

[0030] The marks in the accompanying drawings provided by the present invention are: 01-Fiberglass cloth; 1-drying box, 2-drying hot air blower, 3-conveying roller; 41-motor, 42-limiting sprocket, 43-annular sprocket, 44-chain; 5-powder box, 6-leakage plate, 7-elastic member, 8-rotating shaft, 9-convex plate, 10-loosening rod; 11-lower powder box, 12-convex roller, 13-receiving plate, 14-return spring; 15-cover plate; 16-electric winding wheel, 17-line, 18-line guide groove; 19-fiber cloth clamp, 191-connecting shaft, 192-lower clamping plate, 193-electromagnet, 194-upper clamping plate, 195-compression spring; 20-bottom frame, 21-scraper plate, 22-contraction spring, 23-push-pull rod; 24-aggregate frame, 25-guide rod, 26-scraper, 27-connecting spring; 28-Lever. DETAILED DESCRIPTION

[0031] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0032] In addition, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. It should be noted that the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] Embodiment 1: A drying device for glass fiber cloth, such as Figure 1-Figure 4 As shown, it includes a drying box 1, a drying hot air blower 2, a conveying roller 3, a conveying assembly, a powder box 5, a leak plate 6, an elastic member 7, a rotating shaft 8 and a convex plate 9. A plurality of drying hot air blowers 2 arranged evenly at intervals are installed on the upper part of the drying box 1, and the soaked glass fiber cloth 01 can be dried by the drying hot air blowers 2. A plurality of conveying rollers 3 arranged alternately up and down in a left-right manner are rotatably arranged between the front and back sides of the drying box 1, so that the soaked glass fiber cloth 01 passes around the upper side of the upper conveying roller 3 and the lower side of the lower conveying roller 3. The upper multiple conveying rollers 3 and the lower multiple conveying rollers 3 are synchronously driven in different rotation directions by the conveying assembly to realize the conveying of the glass fiber cloth 01 from left to right. The upper conveying rollers 3 rotate clockwise, and the lower conveying rollers 3 rotate counterclockwise. The conveying assembly is arranged between the drying box 1 and the conveying rollers 3. The left side of the drying box 1 is the feeding side. The feeding side of the drying box 1 is provided with an upper powder box 5 suitable for loading talcum powder. The lower part of the upper powder box 5 is provided with a through hole for discharging talcum powder onto the glass fiber cloth 01. The leak plate 6 slides on the lower part of the upper powder box 5. The leakage holes on the leakage plate 6 have a corresponding state corresponding to the through holes on the upper powder box 5 and a staggered state staggered from the through holes on the upper powder box 5. An elastic member 7 is connected between the leakage plate 6 and the upper powder box 5 for resetting the leakage plate 6 after sliding. The elastic member 7 is a spring. When the glass fiber cloth 01 enters the drying box 1 from the feeding side of the drying box 1, the leakage plate 6 is in a corresponding state. At this time, the talcum powder in the upper powder box 5 falls onto the soaked glass fiber cloth 01 through the upper powder box 5 and the leakage plate 6, so as to prevent the liquid on the glass fiber cloth 01 from adhering to the conveying roller 3, and the rotation The shaft 8 is rotatably arranged at the upper left part of the drying box body 1, and one end of the shaft 8 is connected to a convex plate 9 which contacts and cooperates with the leak plate 6. One of the multiple conveying rollers 3 is driven by the shaft 8 through a flat belt. In the process of the conveying roller 3 continuously conveying the glass fiber cloth 01, the convex plate 9 will intermittently squeeze the leak plate 6 under the transmission of the flat belt, and the leak plate 6 will reciprocate under the action of the elastic member 7, so that the talcum powder will automatically and synchronously fall intermittently to different positions of the glass fiber cloth 01, thereby evenly covering the liquid on the surface of the glass fiber cloth 01, with a high degree of automation.

[0034] Embodiment 2: Based on embodiment 1, Figure 4-Figure 6As shown, it also includes a loosening rod 10 and a cover plate 15. The upper part of the leak plate 6 is connected to a plurality of loosening rods 10 that slide through the upper powder box 5. The elastic member 7 surrounds the loosening rod 10. The reciprocating movement of the leak plate 6 will drive the loosening rod 10 to move reciprocally. The loosening rod 10 will make the talcum powder looser, thereby facilitating the unloading of the talcum powder. The upper part of the upper powder box 5 is slidably provided with a cover plate 15. When the cover plate 15 is opened, talcum powder can be added to the upper powder box 5. The lower side of the cover plate 15 is connected to a rod-shaped component with a protrusion extending into the interior of the upper powder box 5. When the cover plate 15 is closed, the cover plate 15 will drive the rod-shaped component to stir the talcum powder, thereby automatically loosening the talcum powder after the talcum powder is added.

[0035] like Figure 3 and Figure 7 As shown, it also includes a lower powder box 11 and a convex roller 12. The feeding side of the drying box 1 is provided with a lower powder box 11 located below the upper powder box 5. The lower powder box 11 is suitable for loading talcum powder. The glass fiber cloth 01 entering the drying box 1 passes between the upper powder box 5 and the lower powder box 11. The upper and lower sides of the glass fiber cloth 01 are powdered respectively through the cooperation of the upper powder box 5 and the lower powder box 11. The convex roller 12 moves inside the lower powder box 11 and is connected to the rotating shaft 8. The convex roller 12 is wrapped with a cotton sleeve for adhering talcum powder. The rotation of the rotating shaft 8 will drive the convex roller 12 to rotate. The convex roller 12 will stir the talcum powder in the lower powder box 11 and intermittently apply it to the lower side of the glass fiber cloth 01 through the cotton sleeve, so that the steps of conveying, powdering on the upper side, and powdering on the lower side are carried out simultaneously.

[0036] like Figure 8 As shown, it also includes a receiving plate 13 and a return spring 14. The inner bottom of the lower powder box 11 is slidably provided with a receiving plate 13, and three return springs 14 are arranged evenly at front and back intervals between the receiving plate 13 and the lower powder box 11; the receiving plate 13 is located in the rotation path of the convex roller 12, and the receiving plate 13 will support the talcum powder in the lower powder box 11, and the return spring 14 will deform adaptively. Under the action of the return spring 14, the receiving plate 13 will move up as the talcum powder decreases, so as to facilitate the convex roller 12 to contact the talcum powder; at the same time, the convex roller 12 will directly squeeze or squeeze the receiving plate 13 through the talcum powder during the rotation process, and the receiving plate 13 will reciprocate up and down to make the talcum powder float, which is beneficial for the talcum powder to adhere to the moistened glass fiber cloth 01.

[0037] Embodiment 3: Based on embodiment 2, Figure 1 and Fig. 9As shown, it also includes an electric winding wheel 16, a rope 17 and a fiber cloth clamp 19. Two electric winding wheels 16 opposite to each other are installed on the upper front and upper rear parts of the drying box 1. The rope 17 is wound between the two opposite electric winding wheels 16. Line guide grooves 18 that pass over the upper conveying roller 3 and the lower conveying roller 3 are opened on the front and rear inner sides of the upper part of the drying box 1. The rope 17 is arranged along the line guide groove 18. A fiber cloth clamp 19 that slides in the line guide groove 18 is provided between the two ropes 17. When the glass fiber cloth 01 passes over the conveying roller 3, the fiber cloth clamp 19 is first clamped to the initial end of the glass fiber cloth 01, and then the two opposite electric winding wheels 16 are controlled to cooperate with the retracting and releasing ropes 17 to drive the fiber cloth clamp 19 to move from left to right, so that the glass fiber cloth 01 can be automatically passed over the upper conveying roller 3 and the lower conveying roller 3 without manual operation, and the operation is convenient.

[0038] like Fig.10 As shown, the fiber cloth clamp 19 includes a connecting shaft 191, a lower clamping plate 192, an upper clamping plate 194, a compression spring 195 and an electromagnet 193. The two wire ropes 17 are connected to the connecting shaft 191 that slides on the line guide groove 18. A lower clamping plate 192 for fitting the lower side of the glass fiber cloth 01 is provided between the two connecting shafts 191 that are close to each other. An upper clamping plate 194 with a predetermined space between the lower clamping plate 192 is slidably provided on the upper part of the lower clamping plate 192. The predetermined space is used for the glass fiber cloth 01 to pass through. The glass fiber cloth 01 that enters the drying box 1 will The upper clamping plate 194 passes through the gap between the upper clamping plate 194 and the lower clamping plate 192. A compression spring 195 is provided between the upper clamping plate 194 and the lower clamping plate 192 for returning the upper clamping plate 194 to its original position after sliding. The electromagnet 193 is installed on the lower clamping plate 192. The electromagnet 193 cooperates with the upper clamping plate 194 by magnetic attraction. The electromagnet 193 is controlled to magnetically adsorb the upper clamping plate 194. The upper clamping plate 194 will move downward to clamp the glass fiber cloth 01 on the lower clamping plate 192. At this time, the retractable rope 17 is used to automatically enable the fiber cloth clamp 19 to drive the glass fiber cloth 01 to bypass the conveying roller 3.

[0039] As a preferred embodiment of the present invention, the lower clamping plate 192 rotates on the connecting shaft 191, the lower clamping plate 192 is triangular in shape and the upper and lower parts are made of different materials, wherein the lower part of the lower clamping plate 192 is heavier than the upper part of the lower clamping plate 192, the lower part of the lower clamping plate 192 is made of iron, and the upper part of the lower clamping plate 192 is made of plastic; in the process of the fiber cloth clamp 19 driving the glass fiber cloth 01 to move, it continues to maintain a vertical direction due to the weight, so that one end of the glass fiber cloth 01 can be bent and clamped more stably, avoiding the phenomenon of the glass fiber cloth 01 detaching, thereby improving the stability of the clamping.

[0040] Embodiment 4: Based on the embodiment 3, Figure 1 and Figure 3 As shown, the conveying assembly includes a motor 41, a limiting sprocket 42, an annular sprocket 43 and a chain 44. The motor 41 is installed on the front side of the upper right part of the drying box body 1. The output shaft of the motor 41 is connected to the conveying roller 3 on the upper right. A limiting sprocket 42 is rotatably provided on the drying box body 1. The end of the conveying roller 3 is connected to the annular sprocket 43. The upper annular sprocket 43 and the limiting sprocket 42 are meshed with a chain 44 meshed with the upper side of the lower annular sprocket 43. The motor 41 is controlled to drive one of the conveying rollers 3 to rotate. Under the meshing action of the chain 44 and the annular sprocket 43, the upper annular sprocket 43 drives the upper conveying roller 3 to rotate clockwise, and the lower annular sprocket 43 drives the lower conveying roller 3 to rotate counterclockwise.

[0041] like Figure 1 and Fig.11 As shown, it also includes a bottom frame 20, a scraper plate 21, a contraction spring 22, a push-pull rod 23 and a lever 28. The lower side of the drying box 1 is connected to the bottom frame 20. The bottom frame 20 is slidably provided with a scraper plate 21. In the process of drying the glass fiber cloth 01, impurities will fall onto the bottom frame 20. The scraper plate 21 can be slid to clean the impurities on the bottom frame 20. Two contraction springs 22 facing each other are connected between the scraper plate 21 and the bottom frame 20. The contraction spring 22 is used to reset the scraper plate 21 after sliding. The scraper plate 21 is connected to a push-pull rod 23 that slides through the bottom frame 20. The pull rod 23 and the push-pull rod 23 are in the shape of an upwardly bent L. The chain 44 is connected with a lever 28 for pushing the push-pull rod 23. In the process of continuously conveying the glass fiber cloth 01, the chain 44 will push the push-pull rod 23 through the lever 28 to drive the scraper plate 21 to move to the left. When the scraper plate 21 moves to the threshold, the chain 44 continues to drive the lever 28 to move, which will cause the lever block to release the push-pull rod 23, and then the scraper plate 21 will move to the right under the action of the contraction spring 22, so as to automatically and synchronously perform the left and right scraping operations to avoid material accumulation and facilitate recovery.

[0042] like Figure 1 , Fig.11 and Fig.12As shown, it also includes a collection frame 24, a guide rod 25, a scraper 26 and a connecting spring 27. The scraper plate 21 is tilted, and the rear end of the scraper plate 21 is tilted to the right. Two left and right opposite collection frames 24 are slidably provided on the bottom frame 20. The collection frame 24 is used to collect impurities scraped from the bottom frame 20 by the scraper plate 21. Two opposite guide rods 25 are connected to the collection frame 24. The guide rods 25 are tilted in the direction opposite to the tilt direction of the scraper plate 21. A scraper 26 is slidably provided on one end of the guide rod 25 close to the scraper plate 21, wherein the scraper 26 on the left guide rod 25 is located at the left The front end of the guide rod 25 and the scraper 26 on the right guide rod 25 are located at the rear end of the right guide rod 25. A connecting spring 27 surrounding the guide rod 25 and for returning the scraper 26 after sliding is connected between the scraper 26 and the bottom frame 20; the leftward movement of the scraper plate 21 will squeeze the left scraper plate 26, and the left scraper plate 26 will move backward along the guide rod 25 and clean the impurities attached to the scraper plate 21; the rightward movement of the scraper plate 21 will squeeze the right scraper plate 26, and the right scraper plate 26 will move forward along the guide rod 25 and clean the impurities attached to the scraper plate 21; thereby ensuring the cleaning and collection of impurities and avoiding the adhesion of impurities.

[0043] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. They only express the preferred implementation modes of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention.

[0044] It should be pointed out that, for ordinary technicians in this field, several modifications, increases and decreases in quantity, improvements and substitutions can be made without departing from the concept of the present invention. Therefore, based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

Claims

1. A drying device for glass fiber cloth, comprising a drying box (1), a drying hot air blower (2), a conveying roller (3) and a conveying assembly, wherein the drying box (1) is provided with a drying hot air blower (2), a plurality of conveying rollers (3) arranged alternately up and down are rotatably arranged inside the drying box (1), the plurality of conveying rollers (3) at the top and the plurality of conveying rollers (3) at the bottom are synchronously driven in different rotation directions by the conveying assembly, the conveying assembly is arranged between the drying box (1) and the conveying rollers (3), and the characteristics are as follows: The drying box (1) further comprises a powder box (5), a leak plate (6), an elastic member (7), a rotating shaft (8) and a convex plate (9). A powder box (5) is provided on the feeding side of the drying box (1). A through hole is provided at the lower part of the powder box (5). The leak plate (6) slides on the lower part of the powder box (5). An elastic member (7) is connected between the leak plate (6) and the powder box (5). The rotating shaft (8) is rotatably arranged on the drying box (1). One end of the rotating shaft (8) is connected to a convex plate (9) that contacts and cooperates with the leak plate (6). One of the plurality of conveying rollers (3) is driven by the rotating shaft (8) through a flat belt.

2. The drying device for glass fiber cloth according to claim 1, characterized in that: It also comprises a material loosening rod (10) and a cover plate (15); the upper part of the leaking plate (6) is connected to a plurality of material loosening rods (10) which slide through the upper powder box (5); the upper part of the upper powder box (5) is slidably provided with a cover plate (15); the lower side of the cover plate (15) is connected to a rod-shaped component which protrudes and extends into the interior of the upper powder box (5).

3. The drying device for glass fiber cloth according to claim 1, characterized in that: It also comprises a lower powder box (11) and a convex roller (12); a lower powder box (11) located below the upper powder box (5) is provided on the feeding side of the drying box (1); the convex roller (12) moves inside the lower powder box (11) and is connected to the rotating shaft (8); and a cotton sleeve is wrapped on the convex roller (12).

4. The drying device for glass fiber cloth according to claim 3, characterized in that: It also includes a material receiving plate (13) and a return spring (14); the material receiving plate (13) is slidably provided on the inner bottom of the lower powder box (11); a return spring (14) is provided between the material receiving plate (13) and the lower powder box (11); and the material receiving plate (13) is located in the rotation path of the convex roller (12).

5. The drying device for glass fiber cloth according to claim 1, characterized in that: The drying box (1) also includes an electric winding wheel (16), a wire rope (17) and a fiber cloth clamp (19). Two electric winding wheels (16) are mounted on the drying box (1) in opposite directions. The wire rope (17) is wound between the two electric winding wheels (16). The drying box (1) is provided with a line guide groove (18) which is wound around the upper side conveying roller (3) and the lower side conveying roller (3). The wire rope (17) is arranged along the line guide groove (18). A fiber cloth clamp (19) which slides on the line guide groove (18) is arranged between the two wire ropes (17).

6. The drying device for glass fiber cloth according to claim 5, characterized in that: The fiber cloth clamp (19) comprises a connecting shaft (191), a lower clamping plate (192), an upper clamping plate (194), a compression spring (195) and an electromagnet (193). The wire rope (17) is connected to a connecting shaft (191) that slides on a wire guide groove (18). A lower clamping plate (192) is provided on one side of the connecting shaft (191). An upper clamping plate (194) is slidably provided on the upper part of the lower clamping plate (192) with a predetermined space between the upper clamping plate (194) and the lower clamping plate (192). A compression spring (195) is provided between the upper clamping plate (194) and the lower clamping plate (192). The electromagnet (193) is mounted on the lower clamping plate (192), and the electromagnet (193) and the upper clamping plate (194) are magnetically matched.

7. The drying device for glass fiber cloth according to claim 6, characterized in that: The lower clamping plate (192) rotates on the connecting shaft (191). The lower clamping plate (192) is triangular in shape and the upper and lower parts are made of different materials, wherein the lower part of the lower clamping plate (192) is heavier than the upper part of the lower clamping plate (192).

8. The drying device for glass fiber cloth according to claim 1, characterized in that: The conveying assembly comprises a motor (41), a limit sprocket (42), an annular sprocket (43) and a chain (44). The motor (41) is mounted on a drying box (1). The output shaft of the motor (41) is connected to a conveying roller (3). A limit sprocket (42) is rotatably provided on the drying box (1). The end of the conveying roller (3) is connected to the annular sprocket (43). The upper annular sprocket (43) is meshed with the limit sprocket (42) to form a chain (44) meshed with the upper side of the lower annular sprocket (43).

9. The drying device for glass fiber cloth according to claim 8, characterized in that: The invention also comprises a bottom frame (20), a scraper plate (21), a contraction spring (22), a push-pull rod (23) and a lever (28). The bottom side of the drying box (1) is connected to the bottom frame (20). The bottom frame (20) is slidably provided with a scraper plate (21). A contraction spring (22) is connected between the scraper plate (21) and the bottom frame (20). The scraper plate (21) is connected to a push-pull rod (23) which is slidably passed through the bottom frame (20). The chain (44) is connected to a lever (28) for pushing the push-pull rod (23).

10. The drying device for glass fiber cloth according to claim 9, characterized in that: The utility model also comprises a material collecting frame (24), a guide rod (25), a scraper (26) and a connecting spring (27). The scraper (21) is arranged to be inclined. Two opposite material collecting frames (24) are slidably arranged on the bottom frame (20). Two opposite guide rods (25) are connected to the material collecting frame (24). The guide rods (25) are inclined in a direction opposite to the inclination direction of the scraper (21). A scraper (26) is slidably arranged on one end of the guide rod (25) close to the scraper (21). A connecting spring (27) is connected between the scraper (26) and the bottom frame (20).

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