Gum dipping, tentering, shaping and drying production line for polyester grids

Abstract

The invention provides a polyester grid gum dipping, tentering, shaping and drying production line. The polyester grid gum dipping, tentering, shaping and drying production line comprises an unwinding device, a first cloth storage device, a gum dipping and squeezing device, a vertical drying device, a tentering and drying device, a second cloth storage device, a traction and slitting device and a winding and packaging device which are arranged in sequence. The vertical drying device comprises a vertical drying box, a first drying mechanism and a traction mechanism, wherein the first drying mechanism and the traction mechanism are installed in the vertical drying box. The tentering drying device comprises a horizontal drying box, a clip chain tentering mechanism and a second drying mechanism, the clip chain tentering mechanism and the second drying mechanism are arranged in the horizontal drying box, and the polyester grids are conveyed to the clip chain tentering mechanism through the traction mechanism and enter the horizontal drying box; the rolling and packaging device comprises a rolling frame, an overturning rolling mechanism, a guide plate, a packaging mechanism and a pressing mechanism, wherein the overturning rolling mechanism, the guide plate and the packaging mechanism are installed on the rolling frame, and the pressing mechanism is arranged above the overturning rolling mechanism. According to the production line, efficient integrated production of gum dipping, drying, shaping, slitting and packaging of the polyester grids is achieved, and the production line has quality stability and energy-saving economical efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of grid production, and particularly relates to a polyester grid dipping, stretching, setting and drying production line. BACKGROUND

[0002] The polyester grid is a geosynthetic material made of polyester fiber, which is widely used in soft soil foundation reinforcement, slope protection and roadbed reinforcement in road, railway and water conservancy projects. The polyester grid needs to be dipped, stretched, dried and set to obtain high strength, low creep and excellent durability.

[0003] The existing polyester grid processing production line has the following defects: 1. The existing unwinding device needs to be stopped and the roll is replaced when the roll is used up, which causes the production to be interrupted and affects the production efficiency; 2. The storage capacity of the existing storage device is small, which cannot effectively compensate for the speed difference between the front and rear processes, and the production may be stalled or the equipment may be idling; 3. The existing winding and packaging are carried out separately, which needs manual assistance and is low in efficiency, and operation errors often occur; 4. The product quality is unstable, and the polyester grid surface often has uneven glue layer, poor bubble glue layer adhesion or inconsistent width; the above technical problems need to be solved by the skilled in the art. SUMMARY

[0004] In view of the above deficiencies of the prior art, the present application provides a polyester grid dipping, stretching, setting and drying production line, which realizes efficient integrated production of polyester grid dipping, drying, setting, slitting and packaging, and has stable quality and energy saving and economic efficiency.

[0005] To achieve the above object, the present application provides the following technical scheme:

[0006] A polyester grid dipping, stretching, setting and drying production line, comprising unwinding device, first storage device, dipping and extruding glue device, vertical drying device, stretching and drying device, second storage device, traction and slitting device and winding and packaging device arranged in sequence;

[0007] Among them,

[0008] The first storage device comprises a storage rack, storage rollers installed on the storage rack and arranged side by side and staggered, and a driving mechanism for driving the storage rollers to relatively displace along the longitudinal direction of the storage rack, and the polyester grid is wound on the storage rollers in sequence;

[0009] The dipping and extruding glue device comprises a dipping rack, dipping rollers installed on the dipping rack, a dipping tank installed on the lower end of the dipping rollers and liftable, and an extruding mechanism installed above the dipping rollers and arranged obliquely thereto, and the output end of the extruding mechanism is provided with a vertical drying device;

[0010] The vertical drying device comprises a vertical drying box, a first drying mechanism and a traction mechanism installed in the vertical drying box, the polyester grid is arranged on the traction mechanism, the first drying mechanism comprises a first circulating fan and a plurality of air outlets, the plurality of air outlets are distributed on both sides of the traction mechanism and are uniformly distributed along the longitudinal direction of the traction mechanism;

[0011] The tentering drying device comprises a horizontal drying box, a chain tentering mechanism and a second drying mechanism arranged in the horizontal drying box, the polyester grid is conveyed to the chain tentering mechanism by the traction mechanism and enters the horizontal drying box;

[0012] The chain tentering mechanism has one side of the tentering chain facing the polyester grid, which is used for stretching and fixing the two side edges of the polyester grid, so that the polyester grid to be dried can maintain a flat state during the drying process;

[0013] The winding and packaging device comprises a winding frame, a turnover winding mechanism, a guide plate and a packaging mechanism installed on the winding frame, and a pressing mechanism arranged above the turnover winding mechanism, the polyester grid is wound by the cooperation of the turnover winding mechanism and the pressing mechanism, and the winding material is turned over by the turnover winding mechanism, guided through the guide plate and placed on the packaging mechanism.

[0014] In a preferred embodiment of the present application, the unwinding device comprises an unwinding frame, an unwinding roller and a material guiding roller installed on the unwinding frame, the polyester grid in a roll is arranged on the unwinding roller, and the polyester grid is guided by the material guiding roller;

[0015] The two unwinding rollers are arranged at intervals, the unwinding device further comprises a second cloth stopping mechanism, the second cloth stopping mechanism is installed on the cloth storage frame close to the unwinding device, comprises two cloth pulling rollers and a cloth pressing roller arranged side by side, the polyester grid is arranged in an S shape around the cloth pulling roller and the cloth pressing roller, the cloth pressing roller is connected with a cloth pressing driving member, and the cloth pressing driving member drives the cloth pressing roller to displace to the side of the cloth pulling roller.

[0016] In a preferred embodiment of the present application, the cloth storage rollers are rotatably installed on the lifting plates, and the contact ends of the two lifting plates are in an occlusion shape, the cloth storage rollers on the two lifting plates are staggered and arranged in parallel;

[0017] The driving mechanism comprises a lifting cylinder installed on the cloth storage frame and having a telescopic end connected with a lifting plate, a sprocket installed on the cloth storage frame, and a chain wound around the sprocket and connected with the two lifting plates, when one lifting plate is displaced by the lifting cylinder, the other lifting plate is synchronously relatively displaced under the drive of the chain.

[0018] In a preferred embodiment of the present application, two glue-dipping rollers are arranged in the glue-dipping tank, and the glue-extruding mechanism comprises a pair of glue-extruding rollers arranged in parallel and in an inclined manner, wherein one of the glue-extruding rollers is connected with a glue-extruding cylinder.

[0019] In a preferred embodiment of the present application, the traction mechanism comprises upper traction rollers and lower traction rollers arranged in parallel, and the terylene grid is arranged around the upper traction rollers and the lower traction rollers to form an "M" type structure, and a glue receiving disc is arranged at the lower end of the vertical drying oven.

[0020] The two air outlets at the lowermost end of the vertical drying oven are inclined to blow air upward.

[0021] In a preferred embodiment of the present application, the chain tensioning mechanism comprises circulating chains, cloth clamps mounted on the circulating chains, and tensioning driving members mounted between adjacent two circulating chains and capable of driving the relative displacement of the circulating chains, the first end opening of each of the circulating chains is smaller than the end opening, the terylene grid is gradually expanded and stretched in the horizontal drying oven, and the terylene grid is arranged in a trapezoidal shape in the horizontal drying oven.

[0022] In a preferred embodiment of the present application, the second drying mechanism comprises two rows of air outlet pipes arranged in an upper-lower opposite manner, the air outlet pipes are in a duckbill shape, and the terylene grid is arranged between the air outlet pipes.

[0023] A return air pipe connected with the air outlet pipes.

[0024] A natural gas direct-fired hot blast stove is arranged outside the horizontal drying oven, a burner is mounted at one end of the natural gas direct-fired hot blast stove, a second circulating fan is mounted at the other end of the natural gas direct-fired hot blast stove, the return air pipe is communicated with the natural gas direct-fired hot blast stove, and the second circulating fan is communicated with the air outlet pipes through a pipe.

[0025] In a preferred embodiment of the present application, the second cloth storage device is used for storing the dried terylene grid, the traction and slitting device comprises a slitting frame, a slitting roller, a slitting mechanism and a first cloth braking mechanism mounted on the slitting frame, the terylene grid is arranged around the slitting roller and is pulled to the slitting mechanism for slitting, and the slitted terylene grid is wound through the first cloth braking mechanism to the winding and packaging device.

[0026] The slitting mechanism comprises a cutting rod mounted on the slitting frame and a plurality of slitting knives, the arrangement direction of the cutting rod is perpendicular to the feeding direction of the grid, each of the slitting knives is detachably mounted on the cutting rod, and an adjustable cutting interval is formed between the slitting knives.

[0027] Each of the slitting knives is connected with a slitting cylinder.

[0028] In a preferred embodiment of the present application, a pit is dug on the workshop floor, and the winding and packaging device is installed in the pit, and the turnover winding mechanism comprises two parallel rotating winding rollers, wherein the winding roller near the packaging mechanism is connected with a connecting rod mechanism, and the connecting rod mechanism is connected with a turnover cylinder.

[0029] In a preferred embodiment of the present application, the pressing mechanism is arranged above the turnover winding mechanism and is used for pressing the winding material, and comprises two parallel pressing rollers, the two pressing rollers are arranged on both sides of the highest point of the winding material, and the distance between the two pressing rollers increases with the increase of the diameter of the winding material.

[0030] The pressing mechanism further comprises a pressing member, two supports connected with the pressing member, and two guide grooves arranged on the two supports in a symmetrical manner from bottom to top, and the two ends of the pressing roller are arranged on the two supports and in the opposite guide grooves.

[0031] Advantages:

[0032] The polyester grid dipping, stretching, setting and drying production line realizes continuous production without stopping for roll replacement, realizes dynamic compensation of speed difference between front and rear processes by the first and second fabric storage devices, ensures the continuity and stability of the production process, avoids production interruption caused by equipment failure or speed mismatch, realizes automatic operation of the winding and packaging device, turns the winding material to the packaging mechanism by the turnover winding mechanism, realizes automatic packaging, reduces manual intervention, reduces labor cost, and improves production efficiency.

[0033] In the dipping device, the dipping tank can be lifted to control the dipping depth, the excess glue is extruded by the extrusion mechanism, the glue layer is uniformly attached, dripping is avoided, and the product quality is improved; the vertical drying device and the horizontal drying device are segmented curing, bubbles and cracking are avoided, the adhesion of the glue is improved, the hot air circulation design of the vertical drying box and the trapezoidal stretching design of the horizontal drying box ensure that the polyester grid is evenly heated during the drying process, and the product quality is further improved; the chain stretching mechanism forcibly stretches the grid during the drying process, prevents thermal shrinkage, ensures that the width and flatness of the polyester grid meet the standards, and improves the dimensional stability of the product.

[0034] The fabric storage rollers are staggered to ensure that the polyester grid forms a multi-layer S path during fabric storage, maximizes the fabric storage amount, and avoids grid stacking friction; the contact ends of the two lifting plates are in a biting state to ensure the stability of synchronous movement, prevent deviation, and ensure uniform grid tension.

[0035] The polyester grid dipping, stretching, setting and drying production line realizes efficient integrated production of polyester grid dipping, drying, setting, slitting and packaging, and has quality stability and energy saving and economy. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 A front view of a polyester grid impregnation tentering setting drying production line provided by the present application;

[0037] Figure 2 A top view of a polyester grid impregnation tentering setting drying production line provided by the present application;

[0038] Figure 3 A front view of the unwinding device provided by the present application;

[0039] Figure 4 A front view of the installation structure of the first cloth storage device and the second cloth stopping mechanism provided by the present application;

[0040] Figure 5 A front view of the installation structure of the impregnation and extrusion device and the vertical drying device provided by the present application;

[0041] Figure 6 A top view of the tentering and drying device provided by the present application;

[0042] Figure 7 A front view of the installation structure of the second cloth storage device and the traction and slitting device provided by the present application;

[0043] Figure 8 A front view of the winding and packaging device (initial state) provided by the present application;

[0044] Figure 9 A front view of the winding and packaging device (winding completed) provided by the present application;

[0045] Figure 10 A front view of the winding and packaging device (turning and discharging) provided by the present application;

[0046] Figure 11 A front view of the second cloth stopping mechanism provided by the present application.

[0047] In the figure: 1 unwinding device, 11 unwinding frame, 12 unwinding roller, 13 guide roller, 14 second cloth stopping mechanism, 141 cloth pulling roller, 142 cloth pressing roller, 143 cloth pressing driving member;

[0048] 2 first cloth storage device, 21 cloth storage frame, 22 cloth storage roller, 23 driving mechanism, 24 lifting plate;

[0049] 3 impregnation and extrusion device, 31 impregnation frame, 32 impregnation roller, 33 impregnation tank, 34 extrusion mechanism;

[0050] 4 vertical drying device, 41 vertical drying box, 42 first drying mechanism, 43 traction mechanism, 44 glue receiving disc;

[0051] 5 tentering drying device, 51 horizontal drying oven, 52 chain tentering mechanism, 53 second drying mechanism;

[0052] 6 second storage device;

[0053] 7 traction slitting device, 71 slitting frame, 72 slitting roller, 73 slitting mechanism, 74 first brake mechanism;

[0054] 8 winding and packaging device, 81 winding frame, 82 turnover winding mechanism, 821 winding roller, 822 connecting rod mechanism, 823 turnover cylinder, 83 guide plate, 84 packaging mechanism, 85 pressing mechanism, 851 pressing roller, 852 pressing element, 853 support. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0056] As shown in Figure 1 , 2 , the present application provides a polyester grid impregnation tentering setting drying production line, which comprises, in sequence, a unwinding device 1, a first storage device 2, an impregnation and extrusion glue device 3, a vertical drying device 4, a tentering drying device 5, a second storage device 6, a traction slitting device 7 and a winding and packaging device 8.

[0057] Among them,

[0058] The unwinding device 1, as shown in Figure 3 , comprises a unwinding frame 11, a unwinding roller 12 and a material guide roller 13 installed on the unwinding frame 11, and a roll of polyester grid is arranged on the unwinding roller 12, and the polyester grid is guided by the material guide roller 13.

[0059] The first storage device 2, as shown in Figure 4 , comprises a storage frame 21, storage rollers 22 installed on the storage frame 21 and arranged side by side and staggered, and a driving mechanism 23 driving the storage rollers 22 to relatively displace longitudinally along the storage frame 21, and the above-mentioned polyester grid is wound on the storage rollers 22 in sequence.

[0060] The impregnation and extrusion glue device 3, as shown in Figure 5 , comprises an impregnation frame 31, an impregnation roller 32 installed on the impregnation frame 31, an impregnation tank 33 installed on the lower end of the impregnation roller 32 and liftable, and an extrusion glue mechanism 34 installed above the impregnation roller 32 and arranged obliquely thereto, and the output end of the extrusion glue mechanism 34 is provided with the above-mentioned vertical drying device 4.

[0061] Vertical drying device 4, including vertical drying box 41, first drying mechanism 42 and traction mechanism 43 installed in vertical drying box 41, the polyester grid is wound on the traction mechanism 43, the first drying mechanism 42 includes a first circulating fan and a plurality of air outlets, a plurality of air outlets are distributed on both sides of the traction mechanism 43, and are uniformly distributed along the longitudinal direction of the traction mechanism 43, the first circulating fan is installed at the upper end of the vertical drying box 41, used for adjusting the temperature in the vertical drying box 41;

[0062] Tenter drying device 5, as shown in Figure 6 , including horizontal drying box 51, pincer chain tenter mechanism 52 and second drying mechanism 53 arranged in horizontal drying box 51, the horizontal drying box 51 has a cavity and openings at both ends, the polyester grid is conveyed to the pincer chain tenter mechanism 52 by the traction mechanism 43 and enters the horizontal drying box 51;

[0063] The pincer chain tenter mechanism 52 has a side for arranging pincers facing the polyester grid, used for stretching and fixing the two side edges of the polyester grid, so that the polyester grid to be dried keeps flat during drying;

[0064] As shown in Figure 7 , the second storage device 6 is used for storing the dried polyester grid;

[0065] Traction slitting device 7, including slitting frame 71, slitting roller 72, slitting mechanism 73 and first cloth braking mechanism 74 installed on the slitting frame 71, the polyester grid is wound on the slitting roller 72 and is pulled to the slitting mechanism 73 for slitting, and the slitted polyester grid is rolled through the first cloth braking mechanism 74 to the winding and packaging device 8 for winding;

[0066] Winding and packaging device 8, as shown in Figure 8 , including winding frame 81, turnover winding mechanism 82, guide plate 83 and packaging mechanism 84 installed on the winding frame 81, and pressing mechanism 85 arranged above the turnover winding mechanism 82, the polyester grid is wound by the cooperation of the turnover winding mechanism 82 and the pressing mechanism 85, the material is turned over by the turnover winding mechanism 82 and guided to the packaging mechanism 84 through the guide plate 83 for packaging;

[0067] The working principle and beneficial effects of the above embodiment are:

[0068] The polyester grid in roll is stably unfolded by the unwinding roller 12 and the material guide roller 13 of the unwinding device 1, enters the first storage device 2, the first storage device 2 adjusts the spacing of the storage roller 22 through the driving mechanism 23, dynamically compensates the speed difference between the front and rear processes, and ensures continuous production;

[0069] The terylene grid enters the glue dipping device 3, is dipped in glue liquid through the glue dipping roller 32, the glue dipping groove 33 can be lifted to control the dipping depth, the glue squeezing mechanism 34 is obliquely squeezed to the excess glue liquid, ensures that the glue layer is uniformly attached, avoids dripping and leakage;

[0070] The terylene grid after dipping enters the vertical drying box 41, is driven to run by the traction mechanism 43, the first drying mechanism 42 realizes high-efficiency hot air circulation through the first circulating fan and the uniformly distributed air outlet, and the surface of the terylene grid is quickly dried;

[0071] The terylene grid enters the stenter drying device 5, the chain stenter mechanism 52 clamps the two side edges of the grid, is horizontally stretched to fix the width and prevent shrinkage, the second drying mechanism 53 in the horizontal drying box 51 further dries and solidifies the grid, ensures that the glue layer and the fiber are combined firmly, and the grid size is stable;

[0072] The second cloth storage device 6 stores the dried grid, balances the cutting and winding speed, the traction cutting device 7 cuts the terylene grid into the required width through the cutting mechanism 73, and the first cloth brake mechanism 74 can assist in controlling the cutting tension and simultaneously assists in subsequent grid winding;

[0073] The cut terylene grid is wound into a roll material by the turnover winding mechanism 82 in cooperation with the pressing mechanism 85, after winding is completed, the turnover winding mechanism 82 transfers the roll material to the guide plate 83, enters the packaging mechanism 84 to be automatically packaged, and transportation storage is facilitated;

[0074] The terylene grid dipping, drying, setting, cutting and packaging are efficiently integrated in the terylene grid dipping stenter setting drying production line, and the quality stability and energy saving economy are combined;

[0075] The cloth storage device is designed, uninterrupted production is realized, and efficiency is significantly improved; the glue dipping and glue squeezing are matched, the glue amount is accurately controlled, the vertical and horizontal drying is segmented and solidified, air bubbles and cracking are avoided, and the glue liquid adhesion is improved; the chain stenter mechanism forcibly stretches the grid during the drying process, prevents thermal shrinkage, ensures that the terylene grid width and flatness meet the standards, and realizes automatic winding and packaging, and reduces labor cost.

[0076] In one embodiment,

[0077] As Figure 11 shown, the above-mentioned unwinding roller 12 is arranged at intervals two, realizes non-stop operation, the unwinding device 1 further includes a second cloth brake mechanism 14, the second cloth brake mechanism 14 is installed on one side of the cloth storage frame 21 close to the unwinding device 1, includes two cloth pulling rollers 141 and a cloth pressing roller 142 in parallel, the terylene grid is arranged on the cloth pulling roller 141 and the cloth pressing roller 142 in an S shape, the cloth pressing roller 142 is connected with a cloth pressing driving part 143, the cloth pressing driving part 143 drives the cloth pressing roller 142 to displace to one side of the cloth pulling roller 141, and plays a function of stopping cloth;

[0078] The double unwinding roller 12 is designed to quickly switch to another unwinding roller 12 when one roll is used up, so that continuous production is realized without stopping and changing the roll; the second cloth braking mechanism 14 is designed, when the production line is normally running, the cloth pressing roller 142 and the cloth pulling roller 141 maintain appropriate spacing, and the grid passes smoothly; when the roll is changed or the tension is adjusted, the cloth pressing driving element 143 pushes the cloth pressing roller 142 to press against the cloth pulling roller 141, and the friction force of the S-shaped path is used to achieve instantaneous cloth braking to prevent the grid from relaxing or deviating.

[0079] In one embodiment,

[0080] For example Figure 4 、 7 As shown in the figure, the above-mentioned cloth storage roller 22 is rotatably mounted on the lifting plate 24, and the contact ends of the two lifting plates 24 are in engagement, and the cloth storage rollers 22 on the two lifting plates 24 are staggered and arranged in parallel; the cloth storage roller 22 adopts a distribution form of five up and four down;

[0081] The above-mentioned driving mechanism 23 includes a lifting cylinder mounted on the cloth storage frame 21 and having a telescopic end connected to a lifting plate 24, a sprocket mounted on the cloth storage frame 21, and a chain connected to the two lifting plates 24 and wound around the sprocket, the lifting cylinder drives one lifting plate 24 to displace, and the other lifting plate is synchronously displaced under the drive of the chain;

[0082] The cloth storage rollers are staggered, which ensures that the polyester grid forms a multi-layer S path during storage, maximizes the storage capacity, and avoids friction between stacked grids;

[0083] The contact ends of the two lifting plates 24 are in engagement, which ensures the stability of synchronous movement and prevents deviation, the lifting cylinder provides the main driving force, the chain is wound around the sprockets at both ends of the cloth storage frame 21 and connected to the two lifting plates 24, and the power of the lifting cylinder is transmitted to the other lifting plate 24, ensuring uniform grid tension.

[0084] In one embodiment,

[0085] For example Figure 5 As shown in the figure, the above-mentioned two glue dipping rollers 32 are arranged at intervals and located in the glue dipping tank 33, and the above-mentioned glue extruding mechanism 34 includes a pair of adjacent and inclined glue extruding rollers rotatably mounted in the glue dipping frame 31, wherein one of the glue extruding rollers is connected with a glue extruding cylinder, and the glue extruding cylinder is telescopic and driven to move one glue extruding roller towards the other glue extruding roller;

[0086] The two glue dipping rollers 32 are arranged at intervals and submerged in the glue dipping tank 33, forming double dipping points to ensure that the polyester grid is fully and uniformly dipped in the glue solution; the dipping depth is controlled by adjusting the height of the glue dipping tank;

[0087] The glue cylinder is connected with one of the glue rollers, and pushes the glue roller to move towards the other glue roller, adjusts the gap between the two rollers, and ensures that the glue layer is uniform and has no dripping; the inclined design allows the glue solution to naturally flow back to the glue dipping tank 33 due to gravity, reducing waste and pollution.

[0088] In one embodiment,

[0089] The traction mechanism 43 includes upper and lower traction rollers arranged in parallel. The terylene grid is arranged around the upper and lower traction rollers to form an "M" shape, increasing the drying time and length of the grid, allowing the hot air to fully contact the upper and lower surfaces of the grid, and improving the drying efficiency. A glue receiving tray 44 is arranged at the lower end of the vertical drying oven 41 to receive the dripping glue on the surface of the grid. A universal wheel is arranged at the lower end of the glue receiving tray 44 to facilitate the removal of the vertical drying oven 41 for cleaning.

[0090] The two air outlets at the lowermost end of the vertical drying oven 41 are inclined upward, with an inclination angle of 15°-30°. The hot air curtain effectively blocks the entry of cold air from the bottom opening, reducing heat loss.

[0091] In one embodiment,

[0092] For example Figure 6 As shown in the figure, the clip chain stretching mechanism 52 includes a circulating chain, a cloth clip installed on the circulating chain, and a stretching drive installed between adjacent two circulating chains to drive the relative displacement. The first end opening of the two circulating chains is smaller than the end opening. The terylene grid is gradually expanded and stretched in the horizontal drying oven 51, so that the terylene grid is arranged in a trapezoidal shape in the horizontal drying oven 51.

[0093] After the grid enters the horizontal drying oven 51, the cloth clip gradually expands laterally during the movement of the circulating chain, so that the width of the grid is uniformly increased, avoiding stress concentration or tearing caused by instantaneous stretching. The trapezoidal stretching improves the uniformity of material stretching and is compatible with substrates of different shrinkage rates such as terylene and glass fiber.

[0094] In one embodiment,

[0095] The second drying mechanism 53 includes two rows of air outlet pipes arranged in an upper and lower relationship. The air outlet pipes are duckbill-shaped, and the terylene grid is arranged between the air outlet pipes.

[0096] The return air duct is connected with the air outlet duct.

[0097] The natural gas direct-fired hot blast stove is arranged outside the horizontal drying oven 51. One end of the natural gas direct-fired hot blast stove is provided with a burner. The other end of the natural gas direct-fired hot blast stove is provided with a second circulating fan. The return air duct is connected with the natural gas direct-fired hot blast stove. The second circulating fan is connected with the air outlet duct through the duct.

[0098] The burner 5 of the natural gas direct-fired hot air furnace 4 is supplied with natural gas to heat the air. The heated air enters the air outlet duct under the action of the second circulating fan. The hot air is output at the outlet of the air outlet duct to heat the material. Then the hot air enters the return air duct and continues to repeat the above process to achieve cyclic heating and use, effectively reducing production costs and energy consumption.

[0099] In one embodiment,

[0100] The aforementioned slitting mechanism 73 includes a cutting rod and a plurality of slitting blades mounted on the slitting frame 71. The arrangement direction of the cutting rod is perpendicular to the feeding direction of the grid. Each of the aforementioned slitting blades is detachably mounted on the cutting rod, and an adjustable cutting gap is formed between each slitting blade.

[0101] Each slitting blade is connected to a slitting cylinder and controlled individually to achieve selective slitting.

[0102] In one embodiment,

[0103] like Figure 9 , 10 As shown, a pit is dug in the workshop floor, and the above-mentioned winding and packaging device 8 is installed in the pit. The above-mentioned flipping winding mechanism 82 includes two winding rollers 821 rotating in parallel. The winding roller 821 closer to the packaging mechanism 84 is connected to a linkage mechanism 822. The linkage mechanism 822 is connected to a flipping cylinder 823. After the roll reaches the set diameter, the winding roller 821 automatically sinks under the push of the flipping cylinder 823 through the linkage mechanism 822, completing the action of flipping the roll towards the packaging mechanism 84. After the feeding action is completed, the flipping cylinder 823 moves in the opposite direction to make the winding roller 821 automatically lift up. The linkage mechanism 822 is in a dead-point self-locking state. Even if the pressure of the flipping cylinder 823 decreases, the winding roller 821 will not sink.

[0104] In one embodiment,

[0105] The aforementioned pressing mechanism 85 is disposed above the flipping and winding mechanism 82 and is used to press the roll material. It includes two parallel pressure rollers 851, which are placed on both sides of the highest point of the roll material. The distance between the two pressure rollers 851 increases as the diameter of the roll material increases.

[0106] It also includes a clamping component 852 and two brackets 853 connected to the clamping component 852. Each bracket 853 is provided with two guide grooves, which are arranged symmetrically from bottom to top. The two ends of the pressure roller 851 are respectively set on the two brackets 853 and arranged in the opposite guide grooves. The clamping force is infinitely adjustable to ensure effective winding of the roll material.

[0107] With the increase of the diameter of the roll material, the compression roller 851 is automatically moved outward along the involute guide groove, and uniform pressure on the roll material is always maintained, ensuring the tightness of the roll material.

[0108] In summary:

[0109] The polyester grid impregnation tentering and shaping drying production line disclosed by the application adopts double unwinding roller design for the unwinding device, and continuous production is realized without stopping for roll changing; the first and second cloth storage devices can dynamically compensate for the speed difference between the front and rear processes, ensuring the continuity and stability of the production process and avoiding production interruption caused by equipment failure or speed mismatch; the winding and packaging device is automatically operated, the roll material is turned over to the packaging mechanism by the turnover winding mechanism, and automatic packaging is realized, manual intervention is reduced, labor cost is reduced, and production efficiency is improved;

[0110] In the impregnation device, the impregnation groove can be lifted to control the impregnation depth, the excess glue is extruded obliquely by the glue extruding mechanism, the uniform adhesion of the glue layer is ensured, dripping is avoided, and the product quality is improved; the vertical drying device and the horizontal drying device are segmented curing, avoiding bubbles and cracking, improving the adhesion of the glue, and at the same time, the hot air circulation design of the vertical drying oven and the trapezoidal stretching design of the horizontal drying oven ensure that the polyester grid is evenly heated during the drying process, further improving the product quality; the chain tentering mechanism forcibly stretches the grid during the drying process, prevents thermal shrinkage, ensures that the width and flatness of the polyester grid meet the standards, and improves the dimensional stability of the product;

[0111] The cloth storage rollers are staggered to ensure that the polyester grid forms a multi-layer S path during cloth storage, maximizes the cloth storage amount, and at the same time avoids grid stacking friction; the contact ends of the two lifting plates are in occlusion, ensuring the stability of synchronous movement, preventing deviation, and ensuring uniform grid tension;

[0112] The application adopts a natural gas direct-fired hot air furnace to heat air, and the heated air enters the air outlet pipeline under the action of the circulating fan, the hot air is output at the outlet of the air outlet pipeline, the material is heated, and then the hot air enters the air return pipeline to continue the above process, realizing cyclic heating and use, effectively reducing production cost and energy consumption;

[0113] The polyester grid impregnation tentering and shaping drying production line disclosed by the application realizes efficient integrated production of polyester grid impregnation, drying, shaping, slitting and packaging, and has quality stability and energy saving and economy.

[0114] The above shows and describes the basic principles, main features and advantages of the present application, and the front, back, left and right used in the text are not specified, mainly for more intuitive description of the technical scheme, and do not limit. The skilled person in the industry should understand that the above-mentioned embodiments are only for the purpose of illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made in accordance with the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A polyester grid impregnation, stretching, setting, and drying production line, characterized in that: The device comprises unwinding device (1), first storage device (2), impregnation device (3), vertical drying device (4), tentering drying device (5), second storage device (6), traction slitting device (7) and winding and packaging device (8) arranged in sequence. Wherein, The first storage device (2) comprises a storage rack (21), storage rollers (22) installed on the storage rack (21) and arranged side by side and staggered, and a driving mechanism (23) for driving the storage rollers (22) to move longitudinally relative to the storage rack (21), and the polyester grid is wound on the storage rollers (22) in sequence; The impregnation device (3) comprises an impregnation rack (31), impregnation rollers (32) installed on the impregnation rack (31), an impregnation tank (33) installed on the lower end of the impregnation rollers (32) and can be lifted, and an extrusion mechanism (34) installed above the impregnation rollers (32) and arranged obliquely thereto, and the output end of the extrusion mechanism (34) is provided with a vertical drying device (4); The vertical drying device (4) comprises a vertical drying box (41), a first drying mechanism (42) and a traction mechanism (43) installed in the vertical drying box (41), the polyester grid is wound on the traction mechanism (43), and the first drying mechanism (42) comprises a first circulating fan and a plurality of air outlets, the air outlets are distributed on both sides of the traction mechanism (43) and are evenly distributed longitudinally along the traction mechanism (43); The tentering drying device (5) comprises a horizontal drying box (51), a chain tentering mechanism (52) and a second drying mechanism (53) arranged in the horizontal drying box (51), and the polyester grid is conveyed to the chain tentering mechanism (52) by the traction mechanism (43) and enters the horizontal drying box (51); The chain tentering mechanism (52) has one side of the chain facing the polyester grid, which is used to stretch and fix the two side edges of the polyester grid, so that the polyester grid to be dried remains flat during drying; The winding and packaging device (8) comprises a winding rack (81), a turnover winding mechanism (82), a guide plate (83) and a packaging mechanism (84) installed on the winding rack (81), and a pressing mechanism (85) arranged above the turnover winding mechanism (82), the turnover winding mechanism (82) and the pressing mechanism (85) cooperate to wind the polyester grid, and the winding material is turned over by the turnover winding mechanism (82) and guided to the packaging mechanism (84) through the guide plate (83).

2. The polyester grid impregnation tentering setting and drying production line according to claim 1, characterized in that: The unwinding device (1) comprises an unwinding rack (11), an unwinding roller (12) and a material guide roller (13) installed on the unwinding rack (11), a roll of polyester grid arranged on the unwinding roller (12), and the polyester grid is guided by the material guide roller (13); The two unwinding rollers (12) are arranged at intervals, the unwinding device (1) further comprises a second cloth braking mechanism (14) which is installed on the cloth storage frame (21) near the unwinding device (1) and comprises two parallel cloth pulling rollers (141) and a cloth pressing roller (142), the tery grid is arranged in an S shape around the cloth pulling rollers (141) and the cloth pressing roller (142), the cloth pressing roller (142) is connected with a cloth pressing driving member (143), and the cloth pressing driving member (143) drives the cloth pressing roller (142) to displace to the side of the cloth pulling roller (141).

3. The polyester grid impregnation tentering setting and drying production line according to claim 1, characterized in that: The cloth storage rollers (22) are rotatably installed on the lifting plates (24), the contact ends of the two lifting plates (24) are in an occlusion shape, the cloth storage rollers (22) on the two lifting plates (24) are staggered and arranged in parallel; The driving mechanism (23) comprises a lifting cylinder which is installed on the cloth storage frame (21) and has a telescopic end connected with a lifting plate (24), a chain wheel installed on the cloth storage frame (21), and a chain connected with the two lifting plates (24) and wound around the chain wheel, when the lifting cylinder drives one lifting plate (24) to displace, the other lifting plate is synchronously relatively displaced under the drive of the chain.

4. The polyester grid impregnation tentering setting and drying production line according to claim 1, characterized in that: The two glue dipping rollers (32) are arranged at intervals and are located in the glue dipping groove (33), the glue extruding mechanism (34) comprises a pair of adjacent and inclined glue extruding rollers, the glue extruding rollers are rotatably installed in the glue dipping frame (31), one of the glue extruding rollers is connected with a glue extruding cylinder, and the glue extruding cylinder is telescopic to drive one glue extruding roller to move to the other glue extruding roller.

5. The polyester grid impregnation tentering setting and drying production line according to claim 1, characterized in that: The traction mechanism (43) comprises parallel arranged upper traction rollers and lower traction rollers, the tery grid is arranged around the upper traction rollers and the lower traction rollers to form an "M" type structure, and a glue receiving disc (44) is arranged at the lower end of the vertical drying box (41). The two air outlets at the lowermost end of the vertical drying box (41) are inclined to upwardly blow air.

6. The polyester grid impregnation tentering setting and drying production line according to claim 1, characterized in that: The clip chain stretching mechanism (52) comprises circulating chains, cloth clips installed on the circulating chains, and stretching driving members installed between adjacent two circulating chains and capable of driving the relative displacement of the circulating chains, the first ends of the two circulating chains are provided with smaller openings than the openings at the ends, the tery grid is gradually expanded and stretched in the horizontal drying box (51), and the tery grid is arranged in a trapezoidal shape in the horizontal drying box (51).

7. The polyester grid impregnation tentering setting and drying production line according to claim 1, characterized in that: The second drying mechanism (53) comprises two rows of air outlet pipes arranged in an upper-lower opposite manner, the air outlet pipes are in a duckbill shape, and the tery grid is arranged between the air outlet pipes; An air return pipe connected with the air outlet pipes; A natural gas direct combustion type hot blast stove is arranged outside the horizontal drying box (51), a combustion machine is installed at one end of the natural gas direct combustion type hot blast stove, a second circulating fan is installed at the other end of the natural gas direct combustion type hot blast stove, the air return pipe is communicated with the natural gas direct combustion type hot blast stove, and the second circulating fan is communicated with the air outlet pipes through a pipeline.

8. The polyester grid impregnation tentering setting and drying production line according to claim 1, characterized in that: The second cloth storage device (6) is used for storing the dried polyester grid; the traction slitting device (7) comprises a slitting frame (71), a slitting roller (72), a slitting mechanism (73) and a first cloth braking mechanism (74) installed on the slitting frame (71), the polyester grid is wound on the slitting roller (72) and is pulled to the slitting mechanism (73) for slitting, and the slitted polyester grid is wound on the winding and packaging device (8) through the first cloth braking mechanism (74). The slitting mechanism (73) comprises a cutting rod and a plurality of slitting knives installed on the slitting frame (71), the arrangement direction of the cutting rod is perpendicular to the feeding direction of the grid, each slitting knife is detachably installed on the cutting rod, and an adjustable cutting distance is formed between each slitting knife. Each of the slitting knives is connected with a slitting cylinder.

9. The polyester grid impregnation tentering setting and drying production line according to claim 1, characterized in that: A pit is dug in the workshop ground, and the winding and packaging device (8) is installed in the pit, the turnover winding mechanism (82) comprises two parallel rotating winding rollers (821), wherein the winding roller (821) close to the packaging mechanism (84) is connected with a connecting rod mechanism (822), and the connecting rod mechanism (822) is connected with a turnover cylinder (823).

10. The polyester grid impregnation tentering setting and drying production line according to claim 9, characterized in that: The pressing mechanism (85) is arranged above the turnover winding mechanism (82) and is used for pressing the winding material, comprising two parallel pressing rollers (851), the two pressing rollers (851) are arranged on both sides of the highest point of the winding material, and the distance between the two pressing rollers (851) increases with the increase of the diameter of the winding material. It also comprises a pressing member (852), two supports (853) connected with the pressing member (852), both the two supports (853) are provided with two guide grooves, the guide grooves are arranged symmetrically from bottom to top, and both ends of the pressing roller (851) are arranged on the two supports (853) and in the opposite guide grooves.

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