BOPP film raw material drying device

Abstract

The invention relates to the technical field of plastic processing, in particular to a BOPP film raw material drying device. The BOPP film raw material drying device comprises a material turning mechanism, the material turning mechanism comprises a material turning assembly, and the material turning assembly comprises a first rotating plate and a second rotating plate. The material overturning assembly has a first working state and a second working state, and the first working state of the material overturning assembly is that the first rotating plate is located on the front side of the second rotating plate in the rotating direction of the drying cylinder. And according to the second working state of the material overturning assembly, the second rotating plate is located on the front side of the first rotating plate in the rotating direction of the drying cylinder. The first rotating plate firstly stirs the materials, and then the second rotating plate turns over and stirs the materials, so that serious abrasion caused by long-term use of the first rotating plate or the second rotating plate is prevented. The invention provides a BOPP film raw material drying device to solve the problem that due to the fact that the same face of a stirring plate in an existing drying device makes contact with materials after long-term use, the stirring plate is seriously abraded.

Description

Technical Field

[0001] The invention relates to the technical field of plastic processing, in particular to a BOPP film raw material drying device. Background Art

[0002] BOPP film, full name is biaxially oriented polypropylene film, is a high-performance plastic film widely used in various packaging fields. BOPP film has high mechanical strength and dimensional stability, and can withstand a certain amount of tension and pressure without deformation or damage. Drying device is a device used to remove moisture or other volatile liquid components from materials, and is widely used in food, chemical, pharmaceutical and other industries. BOPP film raw material drying device is a device specially used to fully dry the raw materials of BOPP film before processing. The moisture in the BOPP film raw materials is removed by heating and ventilation to ensure the stability and quality of the raw materials in the subsequent processing.

[0003] For example, the patent with announcement number CN206247783U provides a plastic drying device, which realizes the function of rotating centrifugal drying of plastics by means of the coordinated arrangement of a conical drying net, an oblique stirring plate and a ring cylinder. However, when the drying device is working, one of the surfaces of the oblique stirring plate is always in contact with the material, causing the surface to be severely worn after long-term use, and because the material will hit the oblique stirring plate after being thrown, the oblique stirring plate will damage the granular material, thereby reducing the integrity of the material. Summary of the invention

[0004] The invention provides a BOPP film raw material drying device to solve the problem that a stirring plate in an existing drying device contacts the material with the same surface for a long time, resulting in serious wear of the stirring plate.

[0005] A BOPP film raw material drying device of the present invention adopts the following technical scheme: A BOPP film raw material drying device includes a frame, a drying cylinder, a first adjustment mechanism and a plurality of turning mechanisms. The drying cylinder is arranged obliquely, and the drying cylinder is rotatably arranged on the frame. The plurality of turning mechanisms are distributed in sequence along the circumference of the drying cylinder, and each turning mechanism includes a plurality of turning assemblies, and the plurality of turning assemblies are distributed in a spiral shape on the drying cylinder. Each turning assembly includes a fixed plate, a first rotating plate and a second rotating plate. The fixed plate is arranged along the radial direction of the drying cylinder, and a rotating shaft is fixedly arranged on the fixed plate, and the rotating shaft is arranged along the radial direction of the drying cylinder, and the rotating shaft is rotatably arranged on the drying cylinder, and the rotating shaft can move along the radial direction of the drying cylinder.

[0006] The two sides of the fixed plate along the circumference of the drying cylinder are respectively the first side and the second side, the first rotating plate is rotatably arranged on the first side of the fixed plate, and the second rotating plate is rotatably arranged on the second side of the fixed plate. The first rotating plate and the second rotating plate are both arranged along the tangent direction of the drying cylinder. In the initial state, the first rotating plate and the second rotating plate are both perpendicular to the fixed plate.

[0007] The material turning assembly has a first working state and a second working state. The first working state of the material turning assembly is that the first rotating plate is located in front of the second rotating plate along the rotation direction of the drying cylinder. The second working state of the material turning assembly is that the second rotating plate is located in front of the first rotating plate along the rotation direction of the drying cylinder. The first adjustment mechanism is used to rotate the rotating shaft, so that the material turning assembly completes the switching between the first working state and the second working state.

[0008] Furthermore, a first torsion spring is provided at the connection between the first rotating plate and the fixed plate, and a second torsion spring is provided at the connection between the second rotating plate and the fixed plate.

[0009] Furthermore, an arc-shaped housing is fixedly arranged on the frame, the arc-shaped housing is located above the drying cylinder and is coaxially arranged with the drying cylinder. Along the circumference of the drying cylinder, the two sides of the arc-shaped housing are the third side and the fourth side respectively. And along the rotation direction of the drying cylinder, the third side of the arc-shaped housing is located in front of the fourth side of the arc-shaped housing. A first gear is fixedly arranged on the rotating shaft, and the first gear is coaxially arranged with the rotating shaft.

[0010] There are multiple first adjustment mechanisms, which are sequentially distributed along the axial direction of the drying cylinder. Each first adjustment mechanism includes an adjustment block, which is fixedly arranged on the inner circumferential wall of the arc-shaped shell and is located on the first side of the arc-shaped shell. An arc-shaped rack is arranged on the adjustment block, the arc-shaped rack is coaxially arranged with the drying cylinder, and the first gear is meshed with the arc-shaped rack.

[0011] Furthermore, a plurality of square holes are provided on the drying cylinder, a limit block is fixedly provided on each rotating shaft, and each limit block is slidably provided in a square hole.

[0012] Furthermore, each rotating shaft is provided with a first spring, and the first spring connects the fixed plate and the first gear. A contact rod is fixedly provided on the side of the first gear away from the fixed plate, and the contact rod is arranged along the axial direction of the rotating shaft. A guide surface is provided on the adjustment block, and the guide surface includes an inclined surface and an arc surface, and the arc surface and the inclined surface are arranged in sequence front and back along the rotation direction of the drying cylinder. And along the rotation direction of the drying cylinder, the inclined surface gradually approaches the axis of the drying cylinder. The arc surface and the drying cylinder are coaxially arranged, and the arc surface and the arc rack are distributed in sequence along the axial direction of the drying cylinder. One end of the contact rod contacts the guide surface.

[0013] Furthermore, a BOPP film raw material drying device also includes multiple second adjustment mechanisms, which are distributed in sequence along the axial direction of the drying cylinder, and each second adjustment mechanism includes an arc plate, which is fixed on the inner circumferential wall of the arc shell, and the arc plate is arranged on the fourth side of the arc shell.

[0014] The arc plate and the drying cylinder are coaxially arranged, an arc chute is provided on the arc plate, the arc chute and the drying cylinder are coaxially arranged, the arc chute is provided with guide chute on both sides along the axial direction of the drying cylinder, and the guide chute is wavy. The first gear is provided with a first through hole and a second through hole, and the first through hole and the second through hole are distributed along the circumference of the first gear.

[0015] Each material turning assembly further includes a first connecting rod and a second connecting rod, both of which are arranged along the radial direction of the rotating shaft, one end of the first connecting rod is slidably arranged in the first through hole, and a first connecting rope is fixedly arranged thereon, and the first connecting rope is fixedly connected to the first rotating plate. A first rotating wheel is arranged at the other end of the first connecting rod, and each first rotating wheel includes a first rotating rod and two first connecting wheels, the first rotating rod is arranged along the axial direction of the drying cylinder, and the two first connecting wheels are rotatably arranged at both ends of the first rotating rod.

[0016] One end of the second connecting rod is slidably disposed in the second through hole, and a second connecting rope is fixedly disposed thereon, and the second connecting rope is fixedly connected to the second rotating plate. A second rotating wheel is disposed at the other end of the second connecting rod, and each second rotating wheel comprises a second rotating rod and two second connecting wheels, the second rotating rod is disposed along the axial direction of the drying cylinder, and the two second connecting wheels are rotatably disposed at both ends of the second rotating rod, respectively. Each first connecting wheel or each second connecting wheel is slidably disposed in a guide slide groove.

[0017] Furthermore, a first channel is provided in the rotating shaft, and the first channel is arranged along the axial direction of the rotating shaft. A second channel is provided on the fixed plate, and the second channel is arranged along the axial direction of the rotating shaft, and the first channel and the second channel are connected. A third through hole is provided on the third side of the fixed plate, and a fourth through hole is provided on the fourth side of the fixed plate, and both the third through hole and the fourth through hole are connected to the second channel.

[0018] The first connecting rope passes through the first channel and the second channel in sequence, and then passes through the third through hole to be fixedly connected to the first rotating plate. The second connecting rope passes through the first channel and the second channel in sequence, and then passes through the fourth through hole to be fixedly connected to the second rotating plate.

[0019] Furthermore, each guide chute includes a plurality of protrusions and a plurality of grooves, the plurality of protrusions are sequentially distributed along the circumference of the drying cylinder, the convex surface of the protrusions faces the arc plate, and each groove is arranged between two adjacent protrusions, the concave surface of the groove faces the arc plate.

[0020] Furthermore, a feed port is provided on the upper side of one end of the drying cylinder, and a feed pipe is provided at the feed port. A discharge port is provided on the lower side of the other end of the drying cylinder, and a discharge pipe is provided at the discharge port. The end of the drying cylinder with the feed port is higher than the end of the drying cylinder with the discharge port. A hot air blower is provided at the end of the drying cylinder with the discharge port.

[0021] Furthermore, two gear rings are fixedly arranged on the outer peripheral wall of the drying cylinder, and the two gear rings are sequentially distributed along the axial direction of the drying cylinder, and each gear ring is coaxially arranged with the drying cylinder. A BOPP film raw material drying device also includes a driving mechanism, and the driving mechanism includes a motor and two second gears. The motor is fixedly arranged on the frame, and a connecting shaft is fixedly arranged on the output shaft of the motor, and the connecting shaft is arranged along the direction of the rotating shaft. Two second gears are fixedly arranged on the connecting shaft, and each second gear is meshed with a gear ring.

[0022] The beneficial effects of the present invention are as follows: a BOPP film raw material drying device of the present invention, through the setting of the turning mechanism, in the initial state, the first rotating plate and the second rotating plate are perpendicular to the fixed plate, the turning assembly is in the first working state, and the first rotating plate is on the front side of the rotation direction of the drying cylinder.

[0023] The drying cylinder rotates, and the drying cylinder drives multiple material turning mechanisms to rotate synchronously, and the first rotating plate and the first side of the fixed plate turn over and scatter the material. After the material on the first rotating plate is scattered, the rotating shaft is rotated by the first adjustment mechanism, so that the material turning component completes the switching between the first working state and the second working state. The second rotating plate is located in the front side of the rotation direction of the drying cylinder, and then the drying cylinder continues to rotate, and the second rotating plate and the second side of the fixed plate turn over and scatter the material. The first rotating plate and the second rotating plate alternately turn over the material, and the two sides of the fixed plate alternately contact the material, thereby extending the service life and preventing long-term use of the first rotating plate or the second rotating plate and the first side or the second side of the fixed plate from causing serious wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 A schematic structural diagram of a BOPP film raw material drying device provided in an embodiment of the present invention; Figure 2 A partial structural schematic diagram of a BOPP film raw material drying device provided in an embodiment of the present invention; Figure 3for Figure 2 Sectional view along AA direction; Figure 4 for Figure 3 The enlarged view of point B in the middle; Figure 5 A schematic structural diagram of a material turning assembly of a BOPP film raw material drying device provided in an embodiment of the present invention; Figure 6 A schematic diagram of the structure of an adjusting block of a BOPP film raw material drying device provided in an embodiment of the present invention; Figure 7 A front view of a partial structure of a BOPP film raw material drying device provided by an embodiment of the present invention; Figure 8 for Figure 7 Sectional view along CC direction; Fig. 9 for Figure 7 Cross-sectional view along the DD direction; Fig.10 for Fig. 9 Enlarged view of point E in the middle; Fig.11 for Fig. 9 Enlarged view of point F in the middle.

[0026] In the figure: 100, frame; 110, feed pipe; 120, discharge pipe; 130, gear ring; 140, second gear; 150, motor; 200, arc-shaped shell; 300, drying cylinder; 410, fixed plate; 411, rotating shaft; 412, limit block; 413, first spring; 414, first gear; 415, contact rod; 420, first rotating plate; 430, second rotating plate; 500, adjusting block; 510, arc-shaped rack; 520, guiding surface; 521, inclined surface; 522, arc-shaped surface; 600, arc-shaped plate; 610, arc-shaped slide groove; 611, protrusion; 612, groove; 620, first connecting rod; 621, first connecting rope; 622, first rotating wheel; 630, second connecting rod; 632, second rotating wheel. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Reference Figures 1 to 11As shown, a BOPP film raw material drying device provided by an embodiment of the present invention includes a frame 100, a drying cylinder 300, a first adjustment mechanism and a plurality of turning mechanisms. The drying cylinder 300 is tilted, and the drying cylinder 300 is rotatably arranged on the frame 100. The plurality of turning mechanisms are sequentially distributed along the circumference of the drying cylinder 300, and each turning mechanism includes a plurality of turning assemblies, and the plurality of turning assemblies are spirally distributed on the drying cylinder 300. Each turning assembly includes a fixed plate 410, a first rotating plate 420 and a second rotating plate 430. The fixed plate 410 is arranged along the radial direction of the drying cylinder 300, and a rotating shaft 411 is fixedly arranged on the fixed plate 410, and the rotating shaft 411 is arranged along the radial direction of the drying cylinder 300, and the rotating shaft 411 is rotatably arranged on the drying cylinder 300, and the rotating shaft 411 can move along the radial direction of the drying cylinder 300.

[0029] The two sides of the fixed plate 410 along the circumference of the drying cylinder 300 are respectively the first side and the second side, the first rotating plate 420 is rotatably disposed on the first side of the fixed plate 410, and the second rotating plate 430 is rotatably disposed on the second side of the fixed plate 410. The first rotating plate 420 and the second rotating plate 430 are both disposed along the tangent direction of the drying cylinder 300. In the initial state, the first rotating plate 420 and the second rotating plate 430 are both perpendicular to the fixed plate 410.

[0030] The material turning assembly has a first working state and a second working state. The first working state of the material turning assembly is that the first rotating plate 420 is located in front of the second rotating plate 430 along the rotation direction of the drying cylinder 300. The second working state of the material turning assembly is that the second rotating plate 430 is located in front of the first rotating plate 420 along the rotation direction of the drying cylinder 300. The first adjustment mechanism is used to rotate the rotating shaft 411, so that the material turning assembly completes the switching between the first working state and the second working state.

[0031] In the initial state, the first rotating plate 420 and the second rotating plate 430 are both perpendicular to the fixed plate 410 , the material turning assembly is in the first working state, and the first rotating plate 420 is located at the front side of the drying cylinder 300 in the rotation direction.

[0032] The drying cylinder 300 rotates, and the drying cylinder 300 drives multiple material turning mechanisms to rotate synchronously, and the first rotating plate 420 and the first side of the fixed plate 410 turn over and scatter the materials. After the material on the first rotating plate 420 is scattered, the rotating shaft 411 is rotated by the first adjustment mechanism, so that the material turning component completes the switching between the first working state and the second working state. The second rotating plate 430 is located at the front side of the rotation direction of the drying cylinder 300, and then the drying cylinder 300 continues to rotate, and the second rotating plate 430 and the second side of the fixed plate 410 turn over and scatter the materials. The first rotating plate 420 and the second rotating plate 430 alternately turn over the materials, and the two sides of the fixed plate 410 alternately contact the materials, thereby extending the service life and preventing the first rotating plate 420 or the second rotating plate 430 and the first side or the second side of the fixed plate 410 from being seriously worn due to long-term use.

[0033] In this embodiment, a first torsion spring is provided at the connection between the first rotating plate 420 and the fixed plate 410. A second torsion spring is provided at the connection between the second rotating plate 430 and the fixed plate 410. In the initial state, under the action of the first torsion spring and the second torsion spring, the first rotating plate 420 and the second rotating plate 430 are perpendicular to the fixed plate 410. Since the material will hit the first rotating plate 420 and the second rotating plate 430 after being thrown, causing the first rotating plate 420 and the second rotating plate 430 to damage the granular material, the first torsion spring and the second torsion spring are provided so that when the material hits the first rotating plate 420 and the second rotating plate 430, the first rotating plate 420 and the second rotating plate 430 rotate, thereby buffering the material and reducing the degree of damage to the material.

[0034] In this embodiment, an arc-shaped housing 200 is fixedly arranged on the frame 100, and the arc-shaped housing 200 is located above the drying cylinder 300 and is coaxially arranged with the drying cylinder 300. Along the circumference of the drying cylinder 300, the two sides of the arc-shaped housing 200 are the third side and the fourth side respectively. And along the rotation direction of the drying cylinder 300, the third side of the arc-shaped housing 200 is located in front of the fourth side of the arc-shaped housing 200. A first gear 414 is fixedly arranged on the rotating shaft 411, and the first gear 414 and the rotating shaft 411 are coaxially arranged.

[0035] There are multiple first adjustment mechanisms, which are sequentially distributed along the axial direction of the drying cylinder 300. Each first adjustment mechanism includes an adjustment block 500, which is fixedly arranged on the inner circumferential wall of the arc-shaped housing 200 and is located on the first side of the arc-shaped housing 200. An arc-shaped rack 510 is arranged on the adjustment block 500, and the arc-shaped rack 510 is coaxially arranged with the drying cylinder 300, and the first gear 414 is meshed with the arc-shaped rack 510.

[0036] When the drying cylinder 300 rotates, the material turning assembly is driven to rotate synchronously, and the rotating shaft 411 revolves. As the drying cylinder 300 revolves, the first gear 414 and the arc-shaped rack 510 are meshed, and the first gear 414 starts to rotate and drives the rotating shaft 411 to rotate. After the rotating shaft 411 rotates 180°, the first gear 414 and the arc-shaped rack 510 are disengaged, and the material turning assembly completes the transition from the first working state to the second working state.

[0037] In this embodiment, a plurality of square holes are provided on the drying cylinder 300, and a stop block 412 is fixedly provided on each rotating shaft 411, and each stop block 412 is slidably provided in a square hole. In the initial state, the stop block 412 is in the square hole to limit the rotation of the rotating shaft 411. When the stop block 412 moves relative to the square hole so that the stop block 412 is separated from the square hole, the rotating shaft 411 can rotate freely.

[0038] In this embodiment, a first spring 413 is provided on each rotating shaft 411, and the first spring 413 connects the fixed plate 410 and the first gear 414. A contact rod 415 is fixedly provided on the side of the first gear 414 away from the fixed plate 410, and the contact rod 415 is arranged along the axial direction of the rotating shaft 411. A guide surface 520 is provided on the adjustment block 500, and the guide surface 520 includes an inclined surface 521 and an arc surface 522, and the arc surface 522 and the inclined surface 521 are arranged in sequence front and back along the rotation direction of the drying cylinder 300. And along the rotation direction of the drying cylinder 300, the inclined surface 521 gradually approaches the axis of the drying cylinder 300. The arc surface 522 is coaxially arranged with the drying cylinder 300, and the arc surface 522 and the arc rack 510 are distributed in sequence along the axial direction of the drying cylinder 300. One end of the contact rod 415 contacts the guide surface 520.

[0039] When the turning assembly rotates the adjusting block 500, the contact rod 415 first contacts the inclined surface 521. Since the inclined surface 521 gradually approaches the axis of the drying cylinder 300 along the rotation direction of the drying cylinder 300, the contact rod 415 and the rotating shaft 411 are pushed to move toward the axis of the drying cylinder 300 under the guidance of the inclined surface 521, thereby causing the stop block 412 to be separated from the square hole and the first spring 413 to be compressed.

[0040] In this embodiment, a BOPP film raw material drying device also includes multiple second adjustment mechanisms, which are distributed in sequence along the axial direction of the drying cylinder 300, and each second adjustment mechanism includes an arc plate 600, which is fixedly arranged on the inner circumferential wall of the arc shell 200, and the arc plate 600 is arranged on the fourth side of the arc shell 200.

[0041] The arc plate 600 and the drying cylinder 300 are coaxially arranged, and an arc chute 610 is provided on the arc plate 600. The arc chute 610 and the drying cylinder 300 are coaxially arranged, and the arc chute 610 has guide chute on both sides of the axial direction of the drying cylinder 300, and the guide chute is wavy. The first gear 414 is provided with a first through hole and a second through hole, and the first through hole and the second through hole are distributed along the circumference of the first gear 414. When the turning assembly is in the first working state, the first through hole is located on the side close to the arc plate 600 relative to the second through hole, and when the turning assembly is in the second working state, the second through hole is located on the side close to the arc plate 600 relative to the first through hole.

[0042] Each material turning assembly further includes a first connecting rod 620 and a second connecting rod 630, both of which are arranged along the radial direction of the rotating shaft 411. One end of the first connecting rod 620 is slidably arranged in the first through hole, and a first connecting rope 621 is fixedly arranged thereon, and the first connecting rope 621 is fixedly connected to the first rotating plate 420. A first rotating wheel 622 is arranged at the other end of the first connecting rod 620, and each first rotating wheel 622 includes a first rotating rod and two first connecting wheels, the first rotating rod is arranged along the axial direction of the drying cylinder 300, and the two first connecting wheels are rotatably arranged at both ends of the first rotating rod.

[0043] One end of the second connecting rod 630 is slidably disposed in the second through hole, and a second connecting rope is fixedly disposed thereon, and the second connecting rope is fixedly connected to the second rotating plate 430. The other end of the second connecting rod 630 is provided with a second rotating wheel 632, each second rotating wheel 632 includes a second rotating rod and two second connecting wheels, the second rotating rod is disposed along the axial direction of the drying cylinder 300, and the two second connecting wheels are rotatably disposed at both ends of the second rotating rod. Each first connecting wheel or each second connecting wheel is slidably disposed in a guide groove.

[0044] When the material turning assembly is in the first working state, the first connecting rod 620 enters the arc-shaped sliding groove 610 , and when the material turning assembly is in the second working state, the second connecting rod 630 enters the arc-shaped sliding groove 610 .

[0045] In this embodiment, a first channel is provided in the rotating shaft 411, and the first channel is arranged along the axial direction of the rotating shaft 411. A second channel is provided on the fixing plate 410, and the second channel is arranged along the axial direction of the rotating shaft 411, and the first channel and the second channel are connected. A third through hole is provided on the third side of the fixing plate 410, and a fourth through hole is provided on the fourth side of the fixing plate 410, and both the third through hole and the fourth through hole are connected to the second channel.

[0046] The first connecting rope 621 passes through the first channel and the second channel in sequence, and then passes through the third through hole to be fixedly connected to the first rotating plate 420. The second connecting rope passes through the first channel and the second channel in sequence, and then passes through the fourth through hole to be fixedly connected to the second rotating plate 430.

[0047] In this embodiment, each guide chute includes a plurality of protrusions 611 and a plurality of grooves 612, wherein the plurality of protrusions 611 are sequentially distributed along the circumference of the drying cylinder 300, and the convex surface of the protrusion 611 faces the arc plate 600. Each groove 612 is disposed between two adjacent protrusions 611, and the concave surface of the groove 612 faces the arc plate 600.

[0048] When the first rotating wheel 622 on the first connecting rod 620 enters the arc chute 610, each first connecting wheel abuts against a guide chute. Since the guide chute is wavy, the first connecting wheel first abuts against the groove 612 of the guide chute, and then under the guidance of the guide chute protrusion 611, the first connecting rod 620 moves in a direction gradually away from the axis of the drying cylinder 300. When the first connecting rod 620 moves, the first rotating plate 420 is driven by the first connecting rope 621 to deflect toward the direction close to the fixed plate 410, and the angle between the first rotating plate 420 and the fixed plate 410 becomes smaller. Afterwards, under the action of the first torsion spring, the first connecting wheel comes into the groove 612 of the guide chute again, and the first rotating plate 420 is perpendicular to the fixed plate 410 again. The first rotating plate 420 swings continuously, which can increase the range of material scattering and improve the drying efficiency of the material. And by swinging continuously, the material is easier to shake off from the first rotating plate 420 and is not easy to form blocks and stick.

[0049] A first limiting plate is fixedly disposed on the first connecting rod 620, and the first limiting plate abuts against the first gear 414. A second limiting plate is fixedly disposed on the second connecting rod 630, and the second limiting plate abuts against the first gear 414, so that the first connecting rod 620 and the second connecting rod 630 can only move in a direction away from the axis of the drying cylinder 300.

[0050] In this embodiment, a feed port is provided on the upper side of one end of the drying cylinder 300, and a feed pipe 110 is provided at the feed port. A discharge port is provided on the lower side of the other end of the drying cylinder 300, and a discharge pipe 120 is provided at the discharge port. The end of the drying cylinder 300 with the feed port is higher than the end of the drying cylinder 300 with the discharge port. A hot air blower is provided at the end of the drying cylinder 300 with the discharge port.

[0051] The material is fed into the drying cylinder 300 through the feed pipe 110. Since the plurality of material turning components are spirally distributed on the drying cylinder 300, and the end of the drying cylinder 300 with the feed port is higher than the end of the drying cylinder 300 with the discharge port, the material turning component guides the material to the discharge pipe 120 while stirring the material.

[0052] In this embodiment, two gear rings 130 are fixedly arranged on the outer peripheral wall of the drying cylinder 300. The two gear rings 130 are sequentially distributed along the axial direction of the drying cylinder 300, and each gear ring 130 is coaxially arranged with the drying cylinder 300. A BOPP film raw material drying device also includes a driving mechanism, which includes a motor 150 and two second gears 140. The motor 150 is fixedly arranged on the frame 100. A connecting shaft is fixedly arranged on the output shaft of the motor 150. The connecting shaft is arranged along the direction of the rotating shaft 411. The two second gears 140 are fixedly arranged on the connecting shaft, and each second gear 140 is meshed with a gear ring 130. Start the motor 150, the motor 150 drives the two second gears 140 to rotate through the connecting shaft, the second gear 140 drives the drying cylinder 300 to rotate through the gear ring 130, and the drying cylinder 300 drives multiple material turning mechanisms to rotate synchronously.

[0053] Working process: In the initial state, under the action of the first torsion spring and the second torsion spring, the first rotating plate 420 and the second rotating plate 430 are perpendicular to the fixed plate 410. The turning assembly is in the first working state, and the first rotating plate 420 is at the front side of the rotation direction of the drying cylinder 300.

[0054] Start the motor 150, the motor 150 drives the two second gears 140 to rotate through the connecting shaft, the second gears 140 drive the drying cylinder 300 to rotate through the gear ring 130, and the drying cylinder 300 drives multiple material turning mechanisms to rotate synchronously. Put the material into the drying cylinder 300 through the feed pipe 110. When the drying cylinder 300 rotates, the first rotating plate 420 and the fixed plate 410 stir and scatter the material. Since multiple material turning components are distributed in a spiral shape on the drying cylinder 300, and the end of the drying cylinder 300 with the feed port is higher than the end of the drying cylinder 300 with the discharge port. Therefore, the material turning component guides the material to the discharge pipe 120 while stirring the material. Start the hot air blower to heat the material in the drying cylinder 300.

[0055] When the material turning assembly first rotates to the arc plate 600, the first rotating wheel 622 on the first connecting rod 620 enters the arc chute 610, and the first connecting wheel and the guide chute are against each other. Since the guide chute is wavy, the first connecting wheel first abuts against the groove 612 of the guide chute, and then under the guidance of the guide chute protrusion 611, the first connecting rod 620 moves in a direction gradually away from the axis of the drying cylinder 300. When the first connecting rod 620 moves, the first connecting rope 621 drives the first rotating plate 420 to deflect in the direction close to the fixed plate 410, and the angle between the first rotating plate 420 and the fixed plate 410 becomes smaller. Afterwards, under the action of the first torsion spring, the first connecting wheel comes into the groove 612 of the guide chute again, and the first rotating plate 420 is perpendicular to the fixed plate 410 again. The first rotating plate 420 swings continuously, which can increase the range of material scattering and improve the drying efficiency of the material. And by swinging continuously, the material is easier to shake off from the first rotating plate 420 and is not easy to form blocks and stick.

[0056] like Figure 8 As shown, the drying cylinder 300 rotates counterclockwise. When the material turning assembly rotates at the arc plate 600, the material turning assembly continuously dumps the material from the first rotating plate 420 and the fixed plate 410. When the material turning assembly rotates to the adjusting block 500, the material has been dumped completely.

[0057] The contact rod 415 first contacts the inclined surface 521, and as the inclined surface 521 gradually approaches the axis of the drying cylinder 300 along the rotation direction of the drying cylinder 300, the contact rod 415 and the rotating shaft 411 are pushed to move toward the axis of the drying cylinder 300 under the guidance of the inclined surface 521, thereby causing the stop block 412 to disengage from the square hole and the first spring 413 to be compressed.

[0058] After that, the contact rod 415 contacts the arc surface 522, the stop block 412 remains out of the square hole, the first gear 414 meshes with the arc rack 510, the first gear 414 rotates 180°, and drives the rotating shaft 411 to rotate 180°. The second rotating plate 430 is located at the front side of the rotation direction of the drying cylinder 300, and the material turning assembly is changed from the first working state to the second working state. Then, after the contact rod 415 and the arc surface 522 are out of contact, under the action of the first spring 413, the contact rod 415 and the rotating shaft 411 are pushed to move in the direction away from the axis of the drying cylinder 300, and the stop block 412 returns to the square hole. At this time, the second rotating plate 430 starts to stir the material. The first rotating plate 420 and the second rotating plate 430 alternately stir the material, and the two sides of the fixed plate 410 alternately contact the material, thereby extending the service life and preventing the first rotating plate 420 or the second rotating plate 430 and the first side or the second side of the fixed plate 410 from being used for a long time, causing serious wear.

[0059] Since the material will collide with the first rotating plate 420 and the second rotating plate 430 after being scattered, causing the first rotating plate 420 and the second rotating plate 430 to damage the granular material, the first torsion spring and the second torsion spring are set so that when the material hits the first rotating plate 420 and the second rotating plate 430, the first rotating plate 420 and the second rotating plate 430 rotate, thereby buffering the material and reducing the degree of damage to the material.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A BOPP film raw material drying device, characterized in that: It comprises a frame, a drying cylinder, a first adjustment mechanism and a plurality of turning mechanisms; the drying cylinder is arranged obliquely and is rotatably arranged on the frame; the plurality of turning mechanisms are sequentially distributed along the circumference of the drying cylinder, each turning mechanism comprises a plurality of turning components, and the plurality of turning components are spirally distributed on the drying cylinder; each turning component comprises a fixed plate, a first rotating plate and a second rotating plate; the fixed plate is arranged along the radial direction of the drying cylinder, a rotating shaft is fixedly arranged on the fixed plate, the rotating shaft is arranged along the radial direction of the drying cylinder, the rotating shaft is rotatably arranged on the drying cylinder, and the rotating shaft can move along the radial direction of the drying cylinder; The two sides of the fixed plate along the circumference of the drying cylinder are respectively the first side and the second side, the first rotating plate is rotatably arranged on the first side of the fixed plate, and the second rotating plate is rotatably arranged on the second side of the fixed plate; the first rotating plate and the second rotating plate are both arranged along the tangent direction of the drying cylinder; in the initial state, the first rotating plate and the second rotating plate are both perpendicular to the fixed plate; The material turning assembly has a first working state and a second working state. The first working state of the material turning assembly is that the first rotating plate is located in front of the second rotating plate along the rotation direction of the drying cylinder; the second working state of the material turning assembly is that the second rotating plate is located in front of the first rotating plate along the rotation direction of the drying cylinder; the first adjusting mechanism is used to rotate the rotating shaft, so that the material turning assembly completes the switching between the first working state and the second working state.

2. The BOPP film raw material drying device according to claim 1, characterized in that: A first torsion spring is arranged at the connection between the first rotating plate and the fixed plate; a second torsion spring is arranged at the connection between the second rotating plate and the fixed plate.

3. The BOPP film raw material drying device according to claim 1, characterized in that: An arc-shaped shell is fixedly arranged on the frame, the arc-shaped shell is located above the drying cylinder and is coaxially arranged with the drying cylinder; along the circumference of the drying cylinder, the two sides of the arc-shaped shell are respectively the third side and the fourth side; and along the rotation direction of the drying cylinder, the third side of the arc-shaped shell is located in front of the fourth side of the arc-shaped shell; a first gear is fixedly arranged on the rotating shaft, and the first gear is coaxially arranged with the rotating shaft; There are multiple first adjustment mechanisms, which are distributed in sequence along the axial direction of the drying cylinder; each first adjustment mechanism includes an adjustment block, which is fixedly arranged on the inner circumferential wall of the arc-shaped shell and is located on the first side of the arc-shaped shell; an arc-shaped rack is arranged on the adjustment block, the arc-shaped rack and the drying cylinder are coaxially arranged, and the first gear is meshed with the arc-shaped rack.

4. The BOPP film raw material drying device according to claim 1, characterized in that: A plurality of square holes are provided on the drying cylinder, a limiting block is fixedly arranged on each rotating shaft, and each limiting block is slidably arranged in a square hole.

5. The BOPP film raw material drying device according to claim 3, characterized in that: A first spring is arranged on each rotating shaft, and the first spring connects the fixed plate and the first gear; a contact rod is fixedly arranged on the side of the first gear away from the fixed plate, and the contact rod is arranged along the axial direction of the rotating shaft; a guiding surface is provided on the adjusting block, and the guiding surface includes an inclined surface and an arcuate surface, and the arcuate surface and the inclined surface are arranged in sequence front and back along the rotation direction of the drying cylinder; and along the rotation direction of the drying cylinder, the inclined surface gradually approaches the axis of the drying cylinder; the arcuate surface and the drying cylinder are coaxially arranged, and the arcuate surface and the arcuate rack are distributed in sequence along the axial direction of the drying cylinder; one end of the contact rod contacts the guiding surface.

6. The BOPP film raw material drying device according to claim 3, characterized in that: It also includes a plurality of second adjustment mechanisms, which are sequentially distributed along the axial direction of the drying cylinder, and each second adjustment mechanism includes an arc-shaped plate, which is fixedly arranged on the inner peripheral wall of the arc-shaped shell, and the arc-shaped plate is arranged on the fourth side of the arc-shaped shell; The arc plate and the drying cylinder are coaxially arranged, an arc chute is provided on the arc plate, the arc chute and the drying cylinder are coaxially arranged, the arc chute is provided with guide chute on both sides of the axial direction of the drying cylinder, and the guide chute is wavy; the first gear is provided with a first through hole and a second through hole, and the first through hole and the second through hole are distributed along the circumference of the first gear; Each material turning assembly also includes a first connecting rod and a second connecting rod, both of which are arranged along the radial direction of the rotating shaft, one end of the first connecting rod is slidably arranged in the first through hole, and a first connecting rope is fixedly arranged thereon, and the first connecting rope is fixedly connected to the first rotating plate; a first rotating wheel is arranged at the other end of the first connecting rod, and each first rotating wheel includes a first rotating rod and two first connecting wheels, the first rotating rod is arranged along the axial direction of the drying cylinder, and the two first connecting wheels are rotatably arranged at both ends of the first rotating rod respectively; One end of the second connecting rod is slidably arranged in the second through hole and is fixedly provided with a second connecting rope, and the second connecting rope is fixedly connected to the second rotating plate; a second rotating wheel is arranged at the other end of the second connecting rod, and each second rotating wheel includes a second rotating rod and two second connecting wheels, the second rotating rod is arranged along the axial direction of the drying cylinder, and the two second connecting wheels are rotatably arranged at the two ends of the second rotating rod respectively; each first connecting wheel or each second connecting wheel is slidably arranged in a guide groove.

7. The BOPP film raw material drying device according to claim 6, characterized in that: A first channel is provided in the rotating shaft, and the first channel is arranged along the axial direction of the rotating shaft; a second channel is provided on the fixed plate, and the second channel is arranged along the axial direction of the rotating shaft, and the first channel and the second channel are connected; a third through hole is provided on the third side of the fixed plate, and a fourth through hole is provided on the fourth side of the fixed plate, and the third through hole and the fourth through hole are both connected to the second channel; The first connecting rope passes through the first channel and the second channel in sequence, and is fixedly connected to the first rotating plate after passing through the third through hole; the second connecting rope passes through the first channel and the second channel in sequence, and is fixedly connected to the second rotating plate after passing through the fourth through hole.

8. The BOPP film raw material drying device according to claim 6, characterized in that: Each guide chute includes a plurality of protrusions and a plurality of grooves. The plurality of protrusions are sequentially distributed along the circumference of the drying cylinder, and the convex surface of the protrusions faces the arc plate; each groove is arranged between two adjacent protrusions, and the concave surface of the groove faces the arc plate.

9. The BOPP film raw material drying device according to claim 1, characterized in that: A feed port is provided on the upper side of one end of the drying cylinder, and a feed pipe is arranged at the feed port; a discharge port is provided on the lower side of the other end of the drying cylinder, and a discharge pipe is arranged at the discharge port; the end of the drying cylinder with the feed port is higher than the end of the drying cylinder with the discharge port; a hot air blower is arranged at the end of the drying cylinder with the discharge port.

10. The BOPP film raw material drying device according to claim 1, characterized in that: Two gear rings are fixedly arranged on the outer peripheral wall of the drying cylinder, and the two gear rings are distributed in sequence along the axial direction of the drying cylinder, and each gear ring is coaxially arranged with the drying cylinder; a BOPP film raw material drying device also includes a driving mechanism, the driving mechanism includes a motor and two second gears, the motor is fixedly arranged on the frame, a connecting shaft is fixedly arranged on the output shaft of the motor, the connecting shaft is arranged along the direction of the rotating shaft, two second gears are fixedly arranged on the connecting shaft, and each second gear is meshed with a gear ring.

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