Air pipe production line feeding device and preparation method thereof

Abstract

The application relates to the field of air pipe production, and discloses an air pipe production line feeding device and method, which comprises a feeding frame, side plates fixed at the back of the feeding frame and support legs installed at the lower end of the feeding frame, a conveying belt is rotatably installed at the bottom end in the feeding frame, a plurality of intermittently distributed pushing plates are fixed on the outer surface of the conveying belt, a front hopper with an opening downward is installed at the upper end of the feeding frame, and a rear hopper for blocking materials is installed at the lower end of the feeding frame; in the process of isolating material dust by the dust isolation breathable cloth, the lower support is moved upwards and downwards, the supporting column is moved, the convex net surface of the dust isolation breathable cloth is moved upwards and downwards, the movement direction of the convex net surface is opposite to that of the concave net surface, the dust isolation breathable cloth is moved upwards and downwards like a wave to be shaken, the movement range is wide, the air permeation range is large, the shaking effect is better, and the material falling ensures air permeation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air duct production, in particular to an air duct production line feeding device and a preparation method thereof. BACKGROUND

[0002] The main function of the air duct is to deliver cold or warm air to the controlled area to achieve the purification requirements or heating and ventilation of the controlled area, and can deliver air, including ventilation, such as fresh air delivery and exhaust, and has a wide range, and in the production site, the contaminated air is discharged outside, and the outdoor air needs to be delivered to the indoor.

[0003] The utility model discloses a kind of raw material screening devices for air duct processing (application number is 201720156579.

[0004] The existing feeding mechanism can be used for feeding the raw materials of air duct production by conveying belt from low altitude to high altitude. Since some raw materials of air duct production are in powder form, material dust is easily formed during the conveying process of the conveying belt, which not only causes material waste but also causes surrounding pollution. In addition, the material is easily dehumidified after contacting with air, and the moisture on the surface of the material enters the air duct production equipment together, causing uneven quality of the hollowing of the inner wall of the air duct. Therefore, the air duct production line feeding device and the preparation method thereof are proposed to solve the above problems. SUMMARY

[0005] To overcome the above technical problems, the purpose of the present application is to provide an air duct production line feeding device, which can be achieved by the following technical solutions:

[0006] An air duct production line feeding device comprises a feeding frame, a side plate fixed at the back of the feeding frame, and a support leg installed at the lower end of the feeding frame. A conveying belt is rotatably installed at the bottom end of the feeding frame. A plurality of intermittent push plates are fixed on the outer surface of the conveying belt. A front hopper with an opening downward is installed at the upper end of the feeding frame. A rear hopper for blocking materials is installed at the lower end of the feeding frame.

[0007] A dust prevention mechanism is installed at the upper end of the feeding frame, horizontally installed above the conveying belt, and slidably connected with the side plate, for isolating material dust and shaking off powder generated during material conveying.

[0008] A material control mechanism is provided on one side of the rear hopper and connected with the lower end of the feeding frame and the dust prevention mechanism, for storing materials and controlling intermittent discharge of materials.

[0009] A driving mechanism is installed on the side plate, for driving the dust prevention mechanism to move back and forth, shake off powder, and discharge air.

[0010] The feeding rack is provided with a dehumidifying and drying mechanism arranged on the left side of the conveying belt and used for dehumidifying and drying the materials in the conveying belt.

[0011] The dustproof mechanism comprises a wavy dustproof air-permeable cloth, which is movably arranged on the inner side of the feeding rack above the conveying belt, and comprises a plurality of concave mesh surfaces and convex mesh surfaces connected together, the side plate is provided with an open slot, the side plate and the open slot are slidably connected with an upper support transversely arranged on one side of the upper end of the dustproof air-permeable cloth, a spring is fixed between the upper support and the upper end of the open slot, the lower end of the upper support is fixed with a linearly distributed supporting rod, the lower end of the supporting rod is fixed with a transversely arranged horizontal rod, and the horizontal rod is fixed on the upper surface of the concave mesh surface for pulling the dustproof air-permeable cloth.

[0012] Specifically, the dustproof mechanism further comprises a lower support, another open slot is arranged on the inner side of the feeding rack, one side of the lower support arranged in parallel with the upper support is slidably connected in the open slot, another spring is fixed between the lower support and the upper end of the open slot, and a linearly distributed supporting column is fixed on the upper surface of the lower support and fixedly connected with the lower surface of the convex mesh surface.

[0013] Specifically, rotatingly connected with the feeding rack at both ends are conveying wheels, the inner sides of both ends of the conveying belt are respectively rollingly connected with the two conveying wheels, a motor base is fixed on the outer side of the lower end of the feeding rack, a motor is arranged on the motor base, the output shaft of the motor is fixedly connected with the lower conveying wheel, the driving mechanism comprises a cam, the cam is rotatably connected on the back of the lower end of the feeding rack, a belt is connected between the output shaft of the motor and one side of the cam through a belt pulley, an L-shaped upper bending rod is fixed on the lower surface of the end of the upper support, an L-shaped lower bending rod is fixed on the upper end of the end of the lower support, the upper and lower surfaces of the cam are rollingly connected with the lower bending rod and the upper bending rod respectively, and the vertical ends of the upper bending rod and the lower bending rod are in an arc-shaped bending structure.

[0014] Specifically, the material control mechanism comprises an inclined plate, the inclined plate is fixed on the inner side of the lower end of the feeding rack and located on the left side of the rear hopper, an arc-shaped structure cover is fixed on the outer side of the inclined plate and located above the right side of the dustproof air-permeable cloth, an active slot is arranged on one side of the cover, the horizontal rod penetrates in the active slot, an inclined guide plate is fixed on the inner side of the lower end of the feeding rack, an inner side arc-shaped valve plate is rotatably connected to the outer side close to the lower end of the inclined plate, the inner wall of the lower end of the valve plate is in close contact with the lower end of the guide plate, an active long rod is rotatably connected to the end of the upper support, and the lower end of the active long rod is rotatably connected to one side of the valve plate.

[0015] Specific, the dehumidification drying mechanism includes an arc-shaped plate, the arc-shaped plate is slidably arranged at the lower end of the feeding frame, and the upper surface of the arc-shaped plate is in close contact with the lower end of the guide plate; a gas conveying pipe is arranged at the upper end of the arc-shaped plate and is horizontally slidably connected with the feeding frame; a dustproof filter screen is fixed at the lower end of the left side of the gas conveying pipe; a fan is fixedly installed at the lower end of the outside of the feeding frame; the right end of the gas conveying pipe is slidably inserted into the air outlet of the fan; and an electric heating wire is fixed in the air outlet of the fan.

[0016] Specific, the dehumidification drying mechanism further includes a pushing block, the pushing block is fixed in the inside of the arc-shaped plate, the conveying belt is inserted into the inside of the arc-shaped plate, the arc-shaped plate and the support of the feeding frame are fixed with spring two, the arc-shaped plate is rotatably connected with a movable sealing plate, one side of the movable sealing plate is attached to the lower surface of the dustproof filter screen, the inside of the feeding frame is fixed with a horizontally arranged fixed blocking rod, the fixed blocking rod penetrates through the arc-shaped plate and is in contact with the upper surface of the movable sealing plate.

[0017] In addition, the application also discloses a method for feeding the air pipe production line, which comprises the following steps:

[0018] Step 1: move the feeding frame to the air pipe production equipment position, so that the lower end of the front hopper is located above the feeding port of the production equipment, then the user pours the material into the rear hopper from a low altitude, stores the material on the valve plate and the guide plate, starts the motor power supply to work, and drives the conveying belt, the belt and the cam to rotate;

[0019] Step 2: under the rotation of the cam, the upper support and the lower support move away from each other and approach each other, driving the concave mesh surface and the convex mesh surface of the dustproof and breathable cloth to move up and down, shaking the dustproof and breathable cloth to isolate the material dust generated in the conveying process;

[0020] Step 3: through the up-and-down movement of the upper support, the valve plate intermittently rotates, the aperture is intermittently opened, and the material is intermittently conveyed to the conveying belt, so that the material has enough time to dry during the conveying process;

[0021] Step 4: the conveying belt and the pushing plate rotate to convey the material, under the action of the pushing plate, the arc-shaped plate reciprocally moves, under the action of the fixed blocking rod, the movable sealing plate reciprocally rotates and intermittently opens the dustproof filter screen, the hot air intermittently enters the feeding frame, the hot air fully contacts the material to take away the surface moisture for drying;

[0022] Step 5: the conveying belt continuously rotates counterclockwise to push the material upward through the pushing plate until the material enters the front hopper, and then the material enters the air pipe production equipment, and the feeding is completed.

[0023] The application has the following beneficial effects:

[0024] 1. In the process of isolating material dust with a dustproof and breathable cloth, the lower support moves up and down, causing the support column to move, which in turn drives the convex mesh surface of the dustproof and breathable cloth to move up and down in the opposite direction to the concave mesh surface. This makes the dustproof and breathable cloth move up and down like a wave, resulting in a wide range of motion, a large air permeability range, and a better shaking effect. This allows the material to fall while ensuring air permeability. A spring is used for the movement and reset of the upper and lower supports.

[0025] 2. As the dust-proof and breathable cloth shakes and shakes the material up and down, the opening opens intermittently, allowing the material to be conveyed to the conveyor belt intermittently. This ensures that too much material is conveyed at once during the material conveying process, allowing the material enough time to dehumidify and dry. Furthermore, the material is stored at the opening position controlled by the valve plate. The uppermost layer of material inside the hopper moves with a small amplitude, reducing material dust splashing.

[0026] 3. As the dust-proof and breathable cloth shakes and shakes the material up and down, the opening opens intermittently, allowing the material to be conveyed to the conveyor belt intermittently. This ensures that too much material is conveyed at once during the material conveying process, allowing the material enough time to dehumidify and dry. Furthermore, the material is stored at the opening position controlled by the valve plate. The uppermost layer of material inside the rear hopper moves with a small amplitude, reducing material dust splashing.

[0027] 4. During the material feeding process of the conveyor belt, the heating wire is connected to the power supply to heat the air. The heated air is sent into the air delivery pipe by the working fan. Then, the hot air passes through the dust filter and enters the feeding rack. The hot air flows on the support under the conveyor belt and the dust-proof and breathable cloth, carrying away the moisture of the material on the conveyor belt. The moisture is discharged from the mesh of the dust-proof and breathable cloth, thus dehumidifying and drying the material and ensuring that the material is dry before feeding. This is used for the processing of the air duct. Attached Figure Description

[0028] The invention will now be further described with reference to the accompanying drawings.

[0029] Figure 1 This is a schematic diagram of the feeding device of the present invention;

[0030] Figure 2 This is the present invention. Figure 1 Internal diagram of the loading rack;

[0031] Figure 3 This is the present invention. Figure 1 The diagram shows a planar structure.

[0032] Figure 4 This is the present invention. Figure 1 The diagram shows the cross-sectional structure.

[0033] Figure 5 This is the present invention. Figure 4 The enlarged connection diagram of part A is shown below;

[0034] Figure 6 is the structural schematic diagram of the material control mechanism of the present application;

[0035] Figure 7 is the structural schematic diagram of the lower end section of the feeding rack of the present application;

[0036] Figure 8 is the schematic diagram of the dehumidifying and drying mechanism installed at the lower end of the feeding rack of the present application;

[0037] Figure 9 is the structural schematic diagram of the dehumidifying and drying mechanism of the present application.

[0038] In the figure: 1, feeding rack; 101, rear hopper; 102, front hopper; 103, side plate; 104, support leg; 11, conveying belt; 12, pushing plate; 13, conveying wheel; 14, motor; 2, open slot; 3, dustproof mechanism; 31, dustproof and air-permeable cloth; 311, concave mesh surface; 312, convex mesh surface; 32, cross bar; 33, support rod; 34, upper support; 35, lower support; 36, support column; 37, spring one; 4, motor base; 5, material control mechanism; 51, inclined plate; 52, cover; 521, movable slot; 53, valve plate; 531, opening; 54, movable long rod; 55, material guide plate; 6, driving mechanism; 61, upper bent rod; 62, cam; 63, lower bent rod; 64, belt; 7, dehumidifying and drying mechanism; 71, arc-shaped plate; 72, pushing block; 73, movable sealing plate; 74, fixed blocking rod; 75, dustproof filter screen; 76, air conveying pipe; 77, fan; 78, electric heating wire; 79, spring two; 701, limiting sliding slot. DETAILED DESCRIPTION

[0039] 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 in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0040] Please refer to Figure 1 - Figure 9 As shown in the figure, a kind of air pipe production line feeding device, including feeding rack 1, the side plate 103 fixed in the back of feeding rack 1 and the support leg 104 installed at the lower end of feeding rack 1, conveying belt 11 is rotatably installed at the bottom end in the inside of feeding rack 1, conveying belt 11 is fixed with a plurality of intermittent pushing plates 12 distributed along outer surface, the front hopper 102 with downward opening is installed at the upper end of feeding rack 1, the rear hopper 101 for blocking material is installed at the lower end of feeding rack 1.

[0041] The dustproof mechanism 3 is installed at the upper end of the feeding frame 1, is horizontally arranged above the conveying belt 11, and is in sliding connection with the side plate 103, and is used for isolating the material dust generated during the conveying of the material and the shaking and dust removal.

[0042] The control mechanism 5 is arranged at one side of the rear hopper 101 and is in connection with the lower end side wall of the feeding frame 1, is in connection with the dustproof mechanism 3, and is used for storing the material and controlling the intermittent discharge of the material.

[0043] The driving mechanism 6 is arranged on the side plate 103 and is used for driving the dustproof mechanism 3 to reciprocally move, shake, remove dust and discharge.

[0044] The dehumidifying and drying mechanism 7 is arranged on the left side of the conveying belt 11 and is used for dehumidifying and drying the material in the conveying belt 11.

[0045] Specifically, the dustproof mechanism 3 comprises a wave-shaped dust isolation and air permeable cloth 31, the dust isolation and air permeable cloth 31 is movably arranged inside the feeding frame 1 and above the conveying belt 11, and the dust isolation and air permeable cloth 31 comprises a plurality of concave mesh surfaces 311 and convex mesh surfaces 312 connected together. The side plate 103 is provided with an open slot 2, the side plate 103 and the open slot 2 are in sliding connection with an upper support 34 horizontally arranged at one side of the upper end of the dust isolation and air permeable cloth 31, a spring 37 is fixed between the upper end of the open slot 2 and the upper support 34, a support rod 33 in a linear distribution is fixed at the lower end of the upper support 34, a horizontal rod 32 horizontally arranged is fixed at the lower end of the support rod 33, and the horizontal rod 32 is fixed on the upper surface of the concave mesh surface 311 and is used for pulling the dust isolation and air permeable cloth 31.

[0046] The powdery material for the production of the air pipe is conveyed upwards by the counterclockwise rotation of the conveying belt 11, is pushed to the upper end of the feeding frame 1 by the pushing plate 12, then enters the front hopper 102, falls into the inside of the air pipe production equipment through the lower end of the front hopper 102, and is used for feeding for the production of the air pipe. During the feeding process, a layer of the dust isolation and air permeable cloth 31 is arranged above the conveying belt 11, which can effectively reduce the pollution caused by the splashing of the material dust during the feeding process. During the process of blocking the material dust, the upper support 34 is moved up and down, the support rod 33 and the horizontal rod 32 are moved up and down, the concave mesh surface 311 of the dust isolation and air permeable cloth 31 is moved up and down to shake, the material adhered to the lower surface of the dust isolation and air permeable cloth 31 falls onto the conveying belt 11 to continue the conveying and feeding, the material is not wasted and the material dust pollution is avoided, the air permeation effect of the dust isolation and air permeable cloth 31 is ensured, the air is discharged and dehumidified, and the material is prepared for dehumidification.

[0047] Further, the dustproof mechanism 3 further comprises a lower support 35, an opening groove 2 is formed in the inner side of the upper feeding frame 1, one side of the lower support 35 arranged in parallel with the upper support 34 is slidingly connected in the opening groove 2, another spring 37 is fixed between the lower support 35 and the upper end of the opening groove 2, a plurality of support columns 36 distributed in a line shape are fixed on the upper surface of the lower support 35, and the support columns 36 are fixedly connected with the lower surface of the convex mesh surface 312. In the process of isolating the material dust, the lower support 35 moves upward and downward, the support columns 36 move, the convex mesh surface 312 of the dustproof and breathable cloth 31 moves upward and downward, the movement direction of the concave mesh surface 311 is opposite to that of the convex mesh surface 312, the dustproof and breathable cloth 31 moves upward and downward like a wave, and the dustproof and breathable cloth 31 is shaken. The movement range is wide, the air permeation range is large, the shaking effect is better, the material falling ensures air permeation, and the spring 37 is used for moving and resetting the upper support 34 and the lower support 35.

[0048] The upper feeding frame 1 is rotationally connected with conveying wheels 13 at both ends, the inner sides of both ends of the conveying belt 11 are respectively rollingly connected with the two conveying wheels 13, the outer side of the lower end of the upper feeding frame 1 is fixed with a motor seat 4, the motor seat 4 is installed with a motor 14, and the output shaft of the motor 14 is fixedly connected with the lower conveying wheel 13. The driving mechanism 6 comprises a cam 62 rotationally connected at the back of the lower end of the upper feeding frame 1, a belt 64 connected between one side of the cam 62 and the output shaft of the motor 14 through a belt pulley, an L-shaped upper bending rod 61 fixed on the lower surface of the end of the upper support 34, an L-shaped lower bending rod 63 fixed on the upper end of the end of the lower support 35, and the upper and lower surfaces of the cam 62 are rollingly connected with the lower bending rod 63 and the upper bending rod 61 respectively. The vertical ends of the upper bending rod 61 and the lower bending rod 63 are in an arc-shaped bending structure. The motor 14 is energized to drive the conveying wheel 13 to rotate, the conveying belt 11 is counterclockwise rotated to convey the material from low altitude to high altitude for feeding, and the belt 64 is rotated to drive the cam 62 to rotate. Figure 5 In this state, the cam 62 pushes the upper bending rod 61 and the lower bending rod 63 to move the maximum distance, so that when the cam 62 continues to rotate the convex surface horizontally counterclockwise, the spring 37 in the compressed state moves the upper support 34 downward and the lower support 35 upward to move close to each other. When the cam 62 continues to rotate the convex surface vertically again, the lower bending rod 63 is pushed to move upward and the upper bending rod 61 is pushed to move downward, the spring 37 is compressed, so that the upper support 34 moves upward and the lower support 35 moves downward to move away from each other. Through the rotation of the cam 62, the upper support 34 and the lower support 35 move away from each other and move close to each other, the concave mesh surface 311 and the convex mesh surface 312 of the dustproof and breathable cloth 31 move upward and downward, and the dustproof and breathable cloth 31 is shaken.

[0049] In the embodiment, the material control mechanism 5 comprises an inclined plate 51 fixed inside the lower end of the feeding frame 1 and located at the left side of the rear hopper 101. An arc-shaped structure cover 52 is fixed outside the inclined plate 51 and located above the right side of the dustproof and breathable cloth 31. An active slot 521 is formed on one side of the cover 52, and the crossbar 32 penetrates through the active slot 521. An inclined guide plate 55 is fixed inside the lower end of the feeding frame 1. The inclined plate 51 is rotatably connected to the outside of the lower end by an arc-shaped structure valve plate 53. The lower end inner wall of the valve plate 53 is in close contact with the lower end of the guide plate 55. The end of the upper support 34 is rotatably connected to an active long rod 54, and the lower end of the active long rod 54 is rotatably connected to one side of the valve plate 53. The user pours the material from the low altitude into the rear hopper 101, so that the material falls along the inclined plate 51 to the guide plate 55, and is stored between the rear hopper 101, the inclined plate 51, the valve plate 53 and the guide plate 55. When the cam 62 rotates the upper support 34 to move upward by the spring one 37, it drives the active long rod 54 to move, and under the action of the lower end of the active long rod 54, it drives the valve plate 53 to rotate clockwise, so that the lower end of the valve plate 53 is separated from the lower end of the guide plate 55 to expose the gap 531. At this time, the material falls from the gap 531 to the conveyor belt 11 and is pushed upward by the pushing plate 12 counterclockwise. When the cam 62 rotates the upper bending rod 61 and the upper support 34 to move downward, it drives the active long rod 54 to move, and under the action of the lower end of the active long rod 54, it drives the valve plate 53 to rotate counterclockwise, and the lower end is in contact with the lower end of the guide plate 55 to block the gap 531. Repeat the above process, and shake the material on the dustproof and breathable cloth 31 up and down, so that the gap 531 is intermittently opened, and the material is intermittently conveyed to the conveyor belt 11, so as to avoid too much material being conveyed at one time, and to give the material enough time to dry.

[0050] The dehumidification and drying mechanism 7 comprises an arc-shaped plate 71 which is slidably arranged inside the lower end of the feeding frame 1, and the upper surface of the arc-shaped plate 71 is in close contact with the lower end of the guide plate 55. An air pipe 76 is arranged at the upper end of the arc-shaped plate 71 and is horizontally slidably connected with the feeding frame 1. A dustproof filter screen 75 is fixed at the left lower end of the air pipe 76. A fan 77 is fixed at the lower end of the feeding frame 1. The right end of the air pipe 76 is slidably inserted into the air outlet of the fan 77, and an electric heating wire 78 is fixed in the air outlet of the fan 77. During the feeding process of the conveyor belt 11, the electric heating wire 78 is connected to the power supply to heat the air, which is then sent into the air pipe 76 by the fan 77, and then the hot air enters the feeding frame through the dustproof filter screen 75, so that the hot air flows on the conveyor belt 11 and the lower surface support of the dustproof and breathable cloth 31 to remove the moisture of the material on the conveyor belt 11. The moisture is discharged from the mesh of the dustproof and breathable cloth 31 to dehumidify and dry the material, so as to ensure the dryness of the material before feeding, and to process the air pipe.

[0051] In the embodiment, the dehumidifying and drying mechanism 7 further comprises a pushing block 72 fixed inside the arc-shaped plate 71, the conveying belt 11 right side is inserted inside the arc-shaped plate 71, the arc-shaped plate 71 is fixed with a spring two 79 with the support of the feeding rack 1, the arc-shaped plate 71 inside is rotationally connected with a movable sealing plate 73, the movable sealing plate 73 is connected with the feeding rack 1 through a torsional spring shaft (not shown in the figure). The arc-shaped plate 71 lower end slides in the limiting sliding groove 701, one side of the movable sealing plate 73 is attached with the lower surface of the dustproof filter screen 75, the feeding rack 1 inside is fixed with a transversely arranged fixed blocking rod 74, the fixed blocking rod 74 penetrates through the arc-shaped plate 71 and is in contact with the upper surface of the movable sealing plate 73. When the pushing block 72 is contacted by the pushing plate 12 at the right end of the conveying belt 11, the pushing block 72 is pushed rightwards to compress the spring two 79, the air pipe 76 is right-slid to drive the movable sealing plate 73 to move rightwards. In the process, the fixed blocking rod 74 is limited to rotate counterclockwise and is separated from the lower surface of the dustproof filter screen 75, the dustproof filter screen 75 is opened, and the hot air passes through the dustproof filter screen 75 to enter the feeding rack 1. When the pushing plate 12 is rotated to be separated from the pushing block 72, the spring two 79 pushes the arc-shaped plate 71 to move leftwards to reset, the movable sealing plate 73 is clockwise rotated to reset and is attached with the lower surface of the dustproof filter screen 75 under the action of the torsional spring, and the dustproof filter screen 75 is blocked. Thus, the hot air is intermittently made to enter the feeding rack 1 in the process of feeding the conveying material, the hot air and the material are contacted to have sufficient time to take away the surface moisture for drying.

[0052] In addition, the application further discloses a method for feeding the air pipe production line, which comprises the following steps:

[0053] Step 1: moving the feeding rack 1 to the air pipe production equipment position, making the lower end of the front hopper 102 located above the feeding port of the production equipment, then the user pours the material into the rear hopper 101 from low altitude, stores the material on the valve plate 53 and the guide plate 55, and starts the motor 14 power supply to drive the conveying belt 11, the belt 64 and the cam 62 to rotate;

[0054] Step 2: under the rotation of the cam 62, the upper support 34 and the lower support 35 are separated from each other and approached in the moving process, driving the concave mesh surface 311 and the convex mesh surface 312 of the dustproof and breathable cloth 31 to move up and down, shaking the dustproof and breathable cloth 31 to isolate the material dust generated in the conveying process;

[0055] Step 3: through the downward and upward movement of the upper support 34, the valve plate 53 is intermittently rotated to make the aperture 531 intermittently open, so that the material is intermittently conveyed to the conveying belt 11, ensuring that the material has sufficient time to dry in the conveying process;

[0056] Step 4: the conveying belt 11 and the pushing plate 12 rotate to convey the material, under the action of the pushing plate 12, the arc-shaped plate 71 reciprocates, under the action of the fixed blocking rod 74, the movable sealing plate 73 reciprocates to intermittently open the dust separation filter screen 75, the hot air intermittently enters the feeding rack 1, the hot air and the material are in full contact to take away the surface moisture and dry the material;

[0057] Step 5: the conveying belt 11 continuously rotates counterclockwise, the material is pushed upwards by the pushing plate 12 until entering the front hopper 102, and then entering the inside of the air pipe production equipment from the front hopper 102, and the feeding is completed.

[0058] The preferred embodiments disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details and limit the present application to the specific embodiments. Obviously, many modifications and variations can be made according to the content of the present application. The embodiments are selected and described in detail in order to better explain the principles and practical applications of the present application, so that the persons skilled in the art can well understand and utilize the present application. The present application is limited by the claims and their full scope and equivalents.

Claims

1. A duct production line feeding device, comprising a feeding rack (1), a side plate (103) fixed to the back of the feeding rack (1), and a support leg (104) installed at the lower end of the feeding rack (1), characterized in that, The feeding rack (1) has a conveyor belt (11) rotatably installed at the bottom inside. The conveyor belt (11) has several intermittently distributed pusher plates (12) fixed along its outer surface. The feeding rack (1) has a front hopper (102) with an opening facing downwards installed at the top and a rear hopper (101) for blocking material installed at the bottom. The upper part of the feeding rack (1) is equipped with a dustproof mechanism (3), which is installed horizontally above the conveyor belt (11) and is slidably connected to the side plate (103) to isolate the material dust generated during material conveying and the dust caused by shaking. The rear hopper (101) is provided with a material control mechanism (5) connected to the lower side wall of the feed rack (1) and connected to the dustproof mechanism (3) for storing materials and controlling the intermittent discharge of materials; The side plate (103) is equipped with a drive mechanism (6) for driving the dustproof mechanism (3) to reciprocate to shake, remove dust and exhaust air; The feeding rack (1) is equipped with a dehumidification and drying mechanism (7), which is located on the left side of the conveyor belt (11) and is used to dehumidify and dry the material inside the conveyor belt (11). The dustproof mechanism (3) includes a dustproof and breathable cloth (31) with a wave-shaped structure. The dustproof and breathable cloth (31) is movably disposed inside the feeding rack (1) and above the conveyor belt (11). The dustproof and breathable cloth (31) includes multiple concave mesh surfaces (311) and convex mesh surfaces (312) connected together. The side plate (103) has an opening groove (2). The side plate (103) and the opening groove (2) are slidably connected to an upper support (34) horizontally disposed on one side of the upper end of the dustproof and breathable cloth (31). A spring (37) is fixed between the upper support (34) and the upper end of the opening groove (2). A linearly distributed support rod (33) is fixed at the lower end of the upper support (34). A horizontally disposed crossbar (32) is fixed at the lower end of the support rod (33). The crossbar (32) is fixed on the upper surface of the concave mesh surface (311) to pull the dustproof and breathable cloth (31). The dustproof mechanism (3) also includes a lower support (35). The inner side of the feeding rack (1) is provided with another opening slot (2). One side of the lower support (35) which is parallel to the upper support (34) is slidably connected in the opening slot (2). Another spring (37) is fixed between the lower support (35) and the upper end of the opening slot (2). A support column (36) distributed in a linear pattern is fixed on the upper surface of the lower support (35). The support column (36) is fixedly connected to the lower surface of the convex mesh (312). The loading rack (1) is rotatably connected to two conveyor wheels (13) at both ends. The inner sides of the two ends of the conveyor belt (11) are respectively tumbled to the two conveyor wheels (13). The outer side of the lower end of the loading rack (1) is fixed with a motor base (4). The motor base (4) is equipped with a motor (14). The output shaft of the motor (14) is fixedly connected to the conveyor wheel (13) below. The drive mechanism (6) includes a cam (62). The cam (62) is rotatably connected to the back of the lower end of the loading rack (1). One side of the cam (62) is connected to the output shaft of the motor (14) through a pulley and a belt (64). The lower surface of the upper bracket (34) is fixed with an L-shaped upper bent rod (61). The upper end of the lower bracket (35) is fixed with an L-shaped lower bent rod (63). The upper and lower surfaces of the cam (62) are respectively tumbled to the lower bent rod (63) and the upper bent rod (61). The vertical ends of the upper bent rod (61) and the lower bent rod (63) are arc-shaped curved structures.

2. The duct production line feeding device according to claim 1, characterized in that, The material control mechanism (5) includes an inclined plate (51), which is fixed inside the lower end of the feeding rack (1) and located on the left side of the rear hopper (101). An arc-shaped baffle (52) located above the right side of the dustproof and breathable cloth (31) is fixed on the outside of the inclined plate (51). A movable groove (521) is provided on one side of the baffle (52). The crossbar (32) passes through the movable groove (521). An inclined guide plate (55) is fixed on the inner side of the lower end of the feeding rack (1). A valve plate (53) with an arc-shaped structure on the inner side is rotatably connected to the outer side of the lower end of the inclined plate (51). The inner wall of the lower end of the valve plate (53) is in close contact with the lower end of the guide plate (55). A movable long rod (54) is rotatably connected to the end of the upper support (34). The lower end of the movable long rod (54) is rotatably connected to one side of the valve plate (53).

3. The duct production line feeding device according to claim 2, characterized in that, The dehumidification and drying mechanism (7) includes an arc plate (71), which is slidably disposed inside the lower end of the feeding rack (1), and the upper surface of the arc plate (71) is in close contact with the lower end of the guide plate (55). An air supply pipe (76) is provided through the upper end of the arc plate (71) and is horizontally slidably connected to the feeding rack (1). A dust filter screen (75) is fixed through the lower left end of the air supply pipe (76). A fan (77) is fixedly installed on the outer side of the lower end of the feeding rack (1). The right end of the air supply pipe (76) is slidably inserted into the air outlet of the fan (77). An electric heating wire (78) is fixed inside the air outlet of the fan (77).

4. The duct production line feeding device according to claim 2, characterized in that, The dehumidification and drying mechanism (7) also includes a push block (72), which is fixed inside the arc plate (71). The right side of the conveyor belt (11) is inserted into the inside of the arc plate (71). The arc plate (71) and the support of the feeding rack (1) are fixed with a spring (79). The inside of the arc plate (71) is rotatably connected to a movable sealing plate (73). One side of the movable sealing plate (73) is in contact with the lower surface of the dust filter (75). The inside of the feeding rack (1) is fixed with a horizontally arranged fixed stop bar (74). The fixed stop bar (74) passes through the arc plate (71) and contacts the upper surface of the movable sealing plate (73).

5. A method for feeding materials onto a duct production line as described in claim 1, characterized in that, It includes the following steps: Step 1: Move the loading rack (1) to the position of the air duct production equipment, so that the lower end of the front hopper (102) is above the feed inlet of the production equipment. Then the user pours the material from the low height into the interior of the rear hopper (101), so that the material is stored on the valve plate (53) and the guide plate (55). Start the motor (14) to work, driving the conveyor belt (11), belt (64) and cam (62) to rotate. Step 2: As the cam (62) rotates, the upper support (34) and the lower support (35) move apart and come closer, causing the concave mesh surface (311) and convex mesh surface (312) of the dustproof and breathable cloth (31) to move up and down, shaking the dustproof and breathable cloth (31) and isolating the material dust generated during the conveying process. Step 3: By moving the upper support (34) up and down, the valve plate (53) rotates intermittently, causing the notch (531) to open intermittently, so that the material is intermittently transported to the conveyor belt (11); Step 4: The conveyor belt (11) and the pusher plate (12) rotate to transport the material. Under the action of the pusher plate (12), the arc plate (71) moves back and forth. Under the action of the fixed stop bar (74), the movable sealing plate (73) rotates back and forth to open the dust filter screen (75) intermittently. Hot air enters the feeding rack (1) intermittently. The hot air comes into full contact with the material and takes away the surface moisture for drying. Step 5: The conveyor belt (11) rotates counterclockwise and pushes the material upward through the pusher plate (12) until it enters the front hopper (102). The material enters the air duct production equipment from the front hopper (102) to complete the feeding.

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