Blow-blown film raw material particle conveying structure

Abstract

The utility model discloses a blown film raw material particle conveying structure, which belongs to the technical field of raw material conveying and comprises a conveying pipe, a drying box is arranged at the top of the conveying pipe, a feeding hopper is arranged at the top of the drying box, a drying mechanism is arranged in the middle of the drying box, and a constant-speed screening mechanism is arranged in the middle of the feeding hopper. According to the raw material particle drying device, the drying mechanism is arranged, in the process, through the synergistic effect of an air feeder, an electric heating wire and stirring blades, high-temperature hot air can be generated, and raw material particles are fully stirred, so that the raw material particles make full contact with the hot air, and uniform drying is achieved; in the drying process, moisture on the surfaces of the raw material particles can be removed, part of moisture in the raw material particles can be evaporated to a certain degree, and the moisture content of the raw material particles is reduced.

Description

Technical Field

[0001] This utility model relates to the field of raw material conveying technology, and in particular to a conveying structure for blown film raw material particles. Background Technology

[0002] Blown film is an important material widely used in packaging, agriculture, food and other industries. Its production process has strict requirements on the conveying efficiency, stability and uniformity of raw materials. Blown film usually uses plastic raw materials such as polyethylene (PE) and polypropylene (PP), which are usually conveyed to blown film equipment in the form of granules.

[0003] In the current processing of plastic products, conveying devices are required to transport raw materials. However, these existing conveying devices are prone to blockages during the transport process, which reduces the processing efficiency of plastic products.

[0004] The existing patent (publication number: CN218173980U) discloses a plastic product granule raw material conveying device. This utility model solves the problem of easy clogging in plastic product granule raw material conveying devices by setting up a box, horizontal plate, through hole, first motor, transmission rod, adjusting block, guide plate, conveying box, conveying pipe, second motor, power rod, spiral conveying blade, vertical rod, support plate, slider, chute and spring. This plastic product granule raw material conveying device has the advantage of anti-clogging.

[0005] Existing patents offer solutions to the above problems, but they cannot dry the granular raw materials during transportation. Transporting plastic granules in a damp state can easily lead to clumping and blockage of the conveying device.

[0006] Therefore, a structure for conveying raw material particles for blown film is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a conveying structure for blown film raw material granules, which can solve the problem that existing granule raw material conveying devices cannot dry the granule raw materials during the conveying process, and that conveying plastic granule raw materials in a damp state can easily lead to the granule raw materials clumping and clogging of the conveying device.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a conveying structure for blown film raw material particles, including a conveying pipe, a drying box at the top of the conveying pipe, a feeding hopper at the top of the drying box, a drying mechanism in the middle of the drying box, a uniform speed screening mechanism in the middle of the feeding hopper, and a conveying mechanism in the middle of the conveying pipe.

[0009] The drying mechanism includes a mounting frame disposed on the side wall of the drying chamber, two sets of electric heating wires disposed inside the mounting frame, a blower disposed on one side of the mounting frame, a first dividing mesh fixedly connected to the inner wall of the mounting frame, an air outlet disposed on one side of the drying chamber, a second dividing mesh disposed inside the air outlet, an exhaust fan bolted to the side wall of the air outlet, and a speed equalization component disposed in the middle of the drying chamber.

[0010] Preferably, the constant speed component includes a rotating shaft disposed in the middle of the drying chamber, a plurality of stirring blades disposed on the side wall of the rotating shaft, a first motor being bolted to the side wall of the drying chamber, and the output end of the first motor being fixedly connected to the rotating shaft.

[0011] Preferably, the uniform speed screening mechanism includes a screen disposed in the middle of the feed hopper, the screen being arc-shaped, the middle of the feed hopper being circular, a stirring shaft being connected to the bearing in the middle of the feed hopper, stirring blades being disposed on the side wall of the stirring shaft, and a drive assembly being disposed on the side wall of the stirring shaft.

[0012] Preferably, the drive assembly includes a drive wheel disposed on the side wall of the rotating shaft, a driven wheel disposed at one end of the agitator shaft, and a transmission belt disposed between the drive wheel and the driven wheel.

[0013] Preferably, the conveying mechanism includes a conveying shaft disposed in the middle of the conveying pipe, a spiral blade disposed on the side wall of the conveying shaft, a second motor bolted to the side wall of the conveying pipe, the output end of the second motor being fixedly connected to the conveying shaft, and a discharge port disposed at one end of the conveying pipe.

[0014] Preferably, a cleaning pipe is provided in the middle of the feed hopper, and a sealing plate is movably provided on the side wall of the cleaning pipe, the sealing plate being arc-shaped.

[0015] Preferably, an insert frame is provided on the side wall of the mounting frame, and an air intake filter is provided inside the insert frame.

[0016] Preferably, a maintenance plate is hinged to the side wall of the mounting frame, and an air inlet groove is provided in the middle of the maintenance plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application incorporates a drying mechanism. Through the synergistic action of a blower, electric heating wire, and stirring blades, high-temperature hot air is generated and the raw material particles are thoroughly stirred, ensuring full contact between the raw material particles and the hot air, thus achieving uniform drying. The drying process not only removes moisture from the surface of the raw material particles but also evaporates some of the moisture inside the raw material particles to a certain extent, reducing the moisture content of the raw material particles.

[0019] 2. This application incorporates a uniform speed screening mechanism. The synergistic effect of the arc-shaped screen and the stirring blades in this process, along with the stirring of the blades, prevents the accumulation and blockage of raw material particles, ensuring a continuous and smooth screening process and improving production efficiency. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is an overall structural view of the present invention;

[0022] Figure 2 This is the left view of the present invention;

[0023] Figure 3 This utility model Figure 2 A three-dimensional cross-sectional view of point AA in the middle;

[0024] Figure 4 This is a schematic diagram of the uniform speed screening mechanism in this utility model;

[0025] Figure 5 This is a cross-sectional schematic diagram of the uniform velocity component in this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Conveying pipe; 2. Drying box; 3. Feed hopper; 4. Drying mechanism; 5. Uniform speed screening mechanism; 6. Conveying mechanism; 41. Mounting frame; 42. Electric heating wire; 43. Blower; 44. First dividing screen; 45. Air outlet; 46. Second dividing screen; 47. Exhaust fan; 48. Uniform speed assembly; 481. Rotating shaft; 482. Stirring blade; 483. First motor; 51. Screen; 52. Agitating shaft; 53. Stirring blade; 54. Drive assembly; 541. Driving wheel; 542. Driven wheel; 543. Transmission belt; 61. Conveying shaft; 62. Spiral blade; 63. Second motor; 64. Discharge port; 7. Cleaning pipe; 8. Sealing plate; 9. Insert frame; 10. Air inlet filter; 11. Inspection plate; 12. Air inlet slot. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1 to 5 This utility model provides a technical solution:

[0030] A conveying structure for blown film raw material particles includes a conveying pipe 1, a drying box 2 at the top of the conveying pipe 1, a feeding hopper 3 at the top of the drying box 2, a drying mechanism 4 in the middle of the drying box 2, a uniform speed screening mechanism 5 in the middle of the feeding hopper 3, and a conveying mechanism 6 in the middle of the conveying pipe 1.

[0031] The drying mechanism 4 includes a mounting frame 41 disposed on the side wall of the drying chamber 2. Two sets of electric heating wires 42 are disposed inside the mounting frame 41. A blower 43 is disposed on one side of the mounting frame 41. A first dividing mesh 44 is fixedly connected to the inner wall of the mounting frame 41. An air outlet 45 is disposed on one side of the drying chamber 2. A second dividing mesh 46 is disposed inside the air outlet 45. An exhaust fan 47 is bolted to the side wall of the air outlet 45. A constant speed component 48 is disposed in the middle of the drying chamber 2.

[0032] Specifically, such as Figure 4 and Figure 5 As shown, the uniform speed component 48 includes a rotating shaft 481 disposed in the middle of the drying chamber 2, a plurality of stirring blades 482 disposed on the side wall of the rotating shaft 481, and a first motor 483 bolted to the side wall of the drying chamber 2, the output end of the first motor 483 being fixedly connected to the rotating shaft 481.

[0033] Specifically, such as Figure 3 As shown, the conveying mechanism 6 includes a conveying shaft 61 located in the middle of the conveying pipe 1, a spiral blade 62 on the side wall of the conveying shaft 61, a second motor 63 bolted to the side wall of the conveying pipe 1, the output end of the second motor 63 being fixedly connected to the conveying shaft 61, and a discharge port 64 at one end of the conveying pipe 1.

[0034] Specifically, such as Figure 4 As shown, an insert frame 9 is provided on the side wall of the mounting frame 41, and an air intake filter 10 is provided inside the insert frame 9.

[0035] Specifically, such as Figure 4 As shown, a maintenance plate 11 is hinged to the side wall of the mounting frame 41, and an air inlet groove 12 is provided in the middle of the maintenance plate 11.

[0036] In operation, the operator feeds the blown film raw material granules into the drying chamber 2 through the feed hopper 3. The drying mechanism 4 starts working, and the blower 43 starts, drawing outside air into the mounting frame 41 through the air inlet slot 12 in the middle of the inspection plate 11. When the air enters the mounting frame 41, it first passes through the air inlet filter 10 inside the insert frame 9. The air inlet filter 10 filters dust and impurities in the air to prevent them from entering the drying chamber 2 and contaminating the raw material granules. The filtered air continues to move forward, passing through the two sets of electric heating wires 42 installed inside the mounting frame 41. The electric heating wires 42 are circulated... The electricity generates a large amount of heat, heating the air into high-temperature hot air. The first dividing screen 44 and the second dividing screen 46 prevent the raw materials from passing through. After the hot air enters the drying chamber 2, the first motor 483 starts synchronously, driving the stirring blades 482, which are fixedly connected to the rotating shaft 481, to rotate at high speed. The stirring blades 482 thoroughly stir the raw material particles falling into the drying chamber 2, causing the raw material particles to continuously tumble and disperse, thus making full contact with the hot air. The hot air transfers heat to the raw material particles, evaporating some of the moisture on the surface and inside of the raw material particles, thereby achieving the drying process. The generated water vapor and other waste gases are discharged from the exhaust port 45 on one side of the drying chamber 2 under the action of the exhaust fan 47. The dried raw material particles enter the conveying pipe 1 under the action of gravity. At this time, the second motor 63 starts, driving the spiral blade 62, which is fixedly connected to the conveying shaft 61, to start rotating. The rotating spiral blade 62 generates axial thrust and radial stirring action on the raw material particles, causing the raw material particles to move forward along the trajectory of the spiral blade 62 in the conveying pipe 1. When it is necessary to inspect or maintain the internal components of the drying mechanism 4, the operator can directly open the inspection plate 11. The electric heating wire 42, blower 43, rotating shaft 481, stirring blade 482 and other components inside the mounting frame 41 can be easily inspected, repaired or replaced, reducing the difficulty and cost of equipment maintenance. In this way, through the synergistic action of blower 43, electric heating wire 42 and stirring blade 482, high temperature hot air can be generated and the raw material particles can be fully stirred, so that the raw material particles can be fully contacted with the hot air and achieve uniform drying. The drying process can not only remove the moisture on the surface of the raw material particles, but also evaporate some of the moisture inside the raw material particles to a certain extent, reducing the moisture content of the raw material particles.

[0037] Specifically, such as Figure 4 and Figure 5 As shown, the uniform speed screening mechanism 5 includes a screen 51 disposed in the middle of the feed hopper 3. The screen 51 is arc-shaped. The middle of the feed hopper 3 is circular. The middle of the feed hopper 3 is connected to a stirring shaft 52 by a bearing. The stirring blade 53 is disposed on the side wall of the stirring shaft 52. The driving assembly 54 is disposed on the side wall of the stirring shaft 52.

[0038] Specifically, such as Figure 4 and Figure 5As shown, the drive assembly 54 includes a drive wheel 541 disposed on the side wall of the rotating shaft 481, a driven wheel 542 disposed at one end of the agitator shaft 52, and a transmission belt 543 disposed between the drive wheel 541 and the driven wheel 542.

[0039] Specifically, such as Figure 5 As shown, a cleaning pipe 7 is provided in the middle of the feed hopper 3, and a sealing plate 8 is movably provided on the side wall of the cleaning pipe 7. The sealing plate 8 is arc-shaped.

[0040] In operation, the operator pours the raw material granules required for blown film production into the feed hopper 3. The granules fall under gravity and first contact the arc-shaped screen 51 in the center of the feed hopper 3. When the first motor 483 in the center of the drying chamber 2 starts, driving the rotating shaft 481 to rotate, the drive wheel 541 on the side wall of the rotating shaft 481 rotates synchronously. The drive wheel 541 is connected to the driven wheel 542 at one end of the agitator shaft 52 via a transmission belt 543, transmitting power to the driven wheel 542, which in turn drives the agitator shaft 52 to rotate within the circular area in the center of the feed hopper 3. During the rotation of the agitator shaft 52, the agitator blades 53 on its side wall begin to agitate the raw material granules above the screen. The agitation of the agitator blades 53 prevents the raw material granules from being caught on the screen. Accumulation and blockage of the screen mesh ensure the smooth progress of the screening process. On the other hand, agitation allows raw material particles to contact the screen more evenly, further improving screening efficiency. As the feeding and screening process continues, a certain amount of impurity particles will gradually accumulate above the screen. When it is necessary to clean the impurities, the operator opens the sealing plate 8 on the side wall of the cleaning pipe 7 located in the middle of the feed hopper 3. After opening the sealing plate 8, the impurity particles accumulated above the screen 51 are discharged from the feed hopper 3 through the cleaning pipe 7 under the action of gravity. After cleaning, the operator closes the sealing plate 8 again. In this way, the synergistic effect of the arc-shaped screen 51 and the agitator 53, and the agitation of the agitator 53, prevents the accumulation and blockage of raw material particles, ensuring a continuous and smooth screening process and improving production efficiency.

[0041] By adopting the above technical solution, the problem that existing granular material conveying devices cannot dry granular materials during the conveying process is solved. The problem that conveying plastic granular materials in a wet state can easily lead to the granular materials clumping and clogging of the conveying device is solved.

[0042] Working Principle: In use, the operator first pours the raw material granules required for blown film production into the feed hopper 3. The granules fall under gravity and initially contact the arc-shaped screen 51 in the center of the feed hopper 3. When the first motor 483 in the center of the drying chamber 2 starts, driving the rotating shaft 481 to rotate, the drive wheel 541 on the side wall of the rotating shaft 481 rotates synchronously. The drive wheel 541 is connected to the driven wheel 542 at one end of the agitator shaft 52 via a transmission belt 543, transmitting power to the driven wheel 542, which in turn drives the agitator shaft 52 to rotate within the circular area in the center of the feed hopper 3. During the rotation of the agitator shaft 52, the agitator blades 53 on its side wall begin to agitate the raw material granules above the screen. The blower 43 starts, drawing outside air into the mounting frame 41 through the air inlet slot 12 in the center of the inspection plate 11. The electric heating wire 42 generates a large amount of heat after being energized, heating the air... High-temperature hot air enters the drying chamber 2, and the first motor 483 starts synchronously, driving the stirring blade 482, which is fixedly connected to the rotating shaft 481, to rotate at high speed. The stirring blade 482 fully stirs the raw material particles falling into the drying chamber 2, causing the raw material particles to tumble and disperse continuously, thus making full contact with the hot air. The hot air transfers heat to the raw material particles, evaporating some of the moisture on the surface and inside of the raw material particles, thereby achieving the drying treatment of the raw material particles. The water vapor and other waste gas generated during the drying process are discharged from the air outlet 45 on one side of the drying chamber 2 under the action of the exhaust fan 47. The dried raw material particles enter the conveying pipe 1 under the action of gravity. At this time, the second motor 63 starts, driving the spiral blade 62, which is fixedly connected to the conveying shaft 61, to start rotating. The rotating spiral blade 62 generates axial thrust and radial stirring action on the raw material particles, causing the raw material particles to move forward along the trajectory of the spiral blade 62 in the conveying pipe 1.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A conveying structure for blown film raw material particles, comprising a conveying pipe (1), characterized in that: A drying box (2) is provided at the top of the conveying pipe (1), a feeding hopper (3) is provided at the top of the drying box (2), a drying mechanism (4) is provided in the middle of the drying box (2), a uniform speed screening mechanism (5) is provided in the middle of the feeding hopper (3), and a conveying mechanism (6) is provided in the middle of the conveying pipe (1). The drying mechanism (4) includes a mounting frame (41) disposed on the side wall of the drying box (2). Two sets of electric heating wires (42) are disposed inside the mounting frame (41). A blower (43) is disposed on one side of the mounting frame (41). A first dividing mesh (44) is fixedly connected to the inner wall of the mounting frame (41). An air outlet (45) is disposed on one side of the drying box (2). A second dividing mesh (46) is disposed inside the air outlet (45). An exhaust fan (47) is bolted to the side wall of the air outlet (45). A uniform speed component (48) is disposed in the middle of the drying box (2).

2. The blown film raw material particle conveying structure according to claim 1, characterized in that: The uniform speed component (48) includes a rotating shaft (481) located in the middle of the drying box (2). Multiple stirring blades (482) are provided on the side wall of the rotating shaft (481). A first motor (483) is bolted to the side wall of the drying box (2). The output end of the first motor (483) is fixedly connected to the rotating shaft (481).

3. The blown film raw material particle conveying structure according to claim 2, characterized in that: The uniform speed screening mechanism (5) includes a screen (51) disposed in the middle of the feed hopper (3). The screen (51) is arc-shaped. The middle part of the feed hopper (3) is circular. The middle part of the feed hopper (3) is connected to a stirring shaft (52) by a bearing. The stirring shaft (52) is provided with stirring blades (53) on its side wall. The stirring shaft (52) is provided with a drive assembly (54) on its side wall.

4. The blown film raw material particle conveying structure according to claim 3, characterized in that: The drive assembly (54) includes a drive wheel (541) disposed on the side wall of the rotating shaft (481), a driven wheel (542) disposed at one end of the agitator shaft (52), and a transmission belt (543) disposed between the drive wheel (541) and the driven wheel (542).

5. The blown film raw material particle conveying structure according to claim 1, characterized in that: The conveying mechanism (6) includes a conveying shaft (61) located in the middle of the conveying pipe (1), a spiral blade (62) is provided on the side wall of the conveying shaft (61), a second motor (63) is bolted to the side wall of the conveying pipe (1), the output end of the second motor (63) is fixedly connected to the conveying shaft (61), and a discharge port (64) is provided at one end of the conveying pipe (1).

6. The blown film raw material particle conveying structure according to claim 1, characterized in that: A cleaning pipe (7) is provided in the middle of the feed hopper (3), and a sealing plate (8) is movably provided on the side wall of the cleaning pipe (7). The sealing plate (8) is arc-shaped.

7. The blown film raw material particle conveying structure according to claim 1, characterized in that: An insert frame (9) is provided on the side wall of the mounting frame (41), and an air intake filter (10) is provided inside the insert frame (9).

8. The blown film raw material particle conveying structure according to claim 1, characterized in that: A maintenance plate (11) is hinged to the side wall of the mounting frame (41), and an air inlet groove (12) is provided in the middle of the maintenance plate (11).

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