A drying device for BOPP film raw materials

Abstract

The present invention relates to the technical field of plastic processing, and specifically relates to a drying device for BOPP film raw materials. A drying device for BOPP film raw materials includes a material turning mechanism, the material turning mechanism includes a material turning component, and the material turning component includes a first rotating plate and a second rotating plate. The material turning component has a first working state and a second working state. In the first working state of the material turning component, along the rotation direction of the drying cylinder, the first rotating plate is located in front of the second rotating plate. In the second working state of the material turning component, along the rotation direction of the drying cylinder, the second rotating plate is located in front of the first rotating plate. The first rotating plate first stirs the material, and then the second rotating plate turns and mixes the material, preventing serious wear caused by long-term use of the first rotating plate or the second rotating plate. The present invention provides a drying device for BOPP film raw materials to solve the problem that the stirring plate in the existing drying device contacts the material with the same surface for a long time, resulting in serious wear of the stirring plate.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic processing, and particularly relates to a drying device for BOPP film raw materials. Background Art

[0002] BOPP film, fully known as 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 tensile and compressive forces without being easily deformed or damaged. A drying device is a device used to remove moisture or other volatile liquid components from materials, and is widely used in multiple industries such as food, chemical industry, and pharmaceuticals. A drying device for BOPP film raw materials is a device specifically used to fully dry the raw materials of BOPP film before processing. By means of heating and ventilation, the moisture in the BOPP film raw materials is removed to ensure the stability and quality of the raw materials during subsequent processing.

[0003] For example, the patent with the publication number CN206247783U provides a plastic drying device, which realizes the function of centrifugal drying of plastics by the combined setting of a conical drying net, an inclined stirring plate, and a ring cylinder. However, when this drying device is working, one surface of the inclined stirring plate is always in contact with the material, resulting in serious wear of this surface after long-term use, and because the material will impact the inclined stirring plate after being scattered, the inclined stirring plate will damage the granular material, thereby reducing the integrity of the material. Summary of the Invention

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

[0005] The drying device for BOPP film raw materials of the present invention adopts the following technical solution: A drying device for BOPP film raw materials includes a frame, a drying cylinder, a first adjusting mechanism, and a plurality of material turning mechanisms. The drying cylinder is inclined and rotatably arranged on the frame. The plurality of material turning mechanisms are sequentially distributed along the circumferential direction of the drying cylinder, and each material turning mechanism includes a plurality of material turning components, and the plurality of material turning components are spirally distributed on the drying cylinder. Each material turning component includes a fixing plate, a first rotating plate, and a second rotating plate. The fixing plate is arranged along the radial direction of the drying cylinder, a rotating shaft is fixedly arranged on the fixing 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.

[0006] The two sides of the fixed plate along the circumference of the drying cylinder are the first side and the second side respectively. 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, both the first rotating plate and the second rotating plate are perpendicular to the fixed plate.

[0007] The material turning assembly has a first working state and a second working state. In the first working state of the material turning assembly, along the rotation direction of the drying cylinder, the first rotating plate is on the front side of the second rotating plate. In the second working state of the material turning assembly, along the rotation direction of the drying cylinder, the second rotating plate is on the front side of the first rotating plate. 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.

[0008] Furthermore, 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.

[0009] Furthermore, an arc-shaped housing is fixedly arranged on the frame. The arc-shaped housing is 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 on the front side 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 adjusting mechanisms, and the multiple first adjusting mechanisms are distributed in sequence along the axial direction of the drying cylinder. Each first adjusting mechanism includes an adjusting block. The adjusting block is fixedly arranged on the inner peripheral wall of the arc-shaped housing and is on the third side of the arc-shaped housing. An arc-shaped rack is arranged on the adjusting block, and the arc-shaped rack is coaxially arranged with the drying cylinder. The first gear meshes with the arc-shaped rack.

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

[0012] Furthermore, a first spring is arranged on each rotating shaft. 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 formed on the adjusting block. The guiding 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 is coaxially arranged with the drying cylinder, and the arc surface and the arc-shaped rack are distributed in sequence along the axial direction of the drying cylinder. One end of the contact rod contacts the guiding surface.

[0013] Further, a drying device for BOPP film raw materials further includes a plurality of second adjusting mechanisms, which are sequentially distributed along the axial direction of the drying cylinder. Each second adjusting mechanism includes an arc-shaped plate, which is fixedly arranged on the inner peripheral wall of the arc-shaped housing and is arranged on the fourth side of the arc-shaped housing.

[0014] The arc-shaped plate and the drying cylinder are coaxially arranged. An arc-shaped chute is formed on the arc-shaped plate, and the arc-shaped chute is coaxially arranged with the drying cylinder. Guide chutes are respectively formed on both sides of the arc-shaped chute along the axial direction of the drying cylinder, and the guide chutes are wavy. A first through hole and a second through hole are formed on the first gear, and the first through hole and the second through hole are circumferentially distributed along the first gear.

[0015] Each material turning assembly further includes a first connecting rod and a second connecting rod. Both the first connecting rod and the second connecting rod are arranged radially along the rotating shaft. One end of the first connecting rod is slidably arranged in the first through hole and is fixedly provided with a first connecting rope, and the first connecting rope is fixedly connected to the first rotating plate. The other end of the first connecting rod is provided with a first runner. Each first runner 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 respectively rotatably arranged at both ends of the first rotating rod.

[0016] 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. The other end of the second connecting rod is provided with a second runner. Each second runner 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 respectively rotatably arranged at both ends of the second rotating rod. Each first connecting wheel or each second connecting wheel is slidably arranged in a guide chute.

[0017] Further, a first channel is formed in the rotating shaft, and the first channel is arranged along the axial direction of the rotating shaft. A second channel is formed on the fixing plate, and the second channel is arranged along the axial direction of the rotating shaft. The first channel and the second channel are communicated. A third through hole is formed on the first side of the fixing plate, and a fourth through hole is formed on the second side of the fixing plate. Both the third through hole and the fourth through hole are communicated with the second channel.

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

[0019] Further, each guide chute includes a plurality of convex blocks and a plurality of grooves. The plurality of convex blocks are sequentially distributed along the circumferential direction of the drying cylinder, and the convex surface of the convex block faces the arc-shaped plate. Each groove is arranged between two adjacent convex blocks, and the concave surface of the groove faces the arc-shaped plate.

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

[0021] Further, two toothed rings are fixedly arranged on the outer peripheral wall of the drying cylinder, and the two toothed rings are distributed in sequence along the axial direction of the drying cylinder. Each toothed ring is coaxially arranged with the drying cylinder. A BOPP film raw material drying device further 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, the two second gears are fixedly arranged on the connecting shaft, and each second gear meshes with a toothed ring.

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

[0023] When the drying cylinder rotates, the drying cylinder drives a plurality of 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 rotates through the first adjusting mechanism, so that the material turning assembly completes the switching between the first working state and the second working state. The second rotating plate is on the front side in the rotating direction of the drying cylinder. 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, so as to extend the service life and prevent serious wear caused by the 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. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a schematic structural diagram of a BOPP film raw material drying device provided by an embodiment of the present invention;

[0026] Figure 2 It is a partial structural schematic diagram of a BOPP film raw material drying device provided by an embodiment of the present invention;

[0027] Figure 3 is Figure 2 a sectional view taken along the A-A direction in

[0028] Figure 4 is Figure 3 an enlarged view at position B in

[0029] Figure 5 a schematic structural view of the turnover component of a BOPP film raw material drying device provided by an embodiment of the present invention;

[0030] Figure 6 a schematic structural view of the adjusting block of a BOPP film raw material drying device provided by an embodiment of the present invention;

[0031] 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;

[0032] Figure 8 is Figure 7 a sectional view taken along the C-C direction in

[0033] Figure 9 is Figure 7 a sectional view taken along the D-D direction in

[0034] Figure 10 is Figure 9 an enlarged view at position E in

[0035] Figure 11 is Figure 9 an enlarged view at position F in

[0036] In the figure: 100, frame; 110, feed pipe; 120, discharge pipe; 130, gear ring; 140, second gear; 150, motor; 200, arc-shaped housing; 300, drying cylinder; 410, fixing plate; 411, rotating shaft; 412, limiting 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 sliding groove; 611, convex block; 612, groove; 620, first connecting rod; 621, first connecting rope; 622, first runner; 630, second connecting rod; 632, second runner. Detailed implementation manners

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] Referring Figures 1 to 11 As shown, a drying device for BOPP film raw materials provided by an embodiment of the present invention includes a frame 100, a drying cylinder 300, a first adjusting mechanism, and a plurality of material turning mechanisms. The drying cylinder 300 is inclined and rotatably arranged on the frame 100. The plurality of material turning mechanisms are sequentially distributed along the circumference of the drying cylinder 300, and each material turning mechanism includes a plurality of material turning components, and the plurality of material turning components are spirally distributed on the drying cylinder 300. Each material turning component includes a fixing plate 410, a first rotating plate 420, and a second rotating plate 430. The fixing plate 410 is arranged along the radial direction of the drying cylinder 300, a rotating shaft 411 is fixedly arranged on the fixing plate 410, the rotating shaft 411 is arranged along the radial direction of the drying cylinder 300, 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.

[0039] The two sides of the fixing plate 410 along the circumference of the drying cylinder 300 are respectively a first side and a second side. The first rotating plate 420 is rotatably arranged on the first side of the fixing plate 410, and the second rotating plate 430 is rotatably arranged on the second side of the fixing plate 410. Both the first rotating plate 420 and the second rotating plate 430 are arranged along the tangential direction of the drying cylinder 300. In the initial state, both the first rotating plate 420 and the second rotating plate 430 are perpendicular to the fixing plate 410.

[0040] The material turning component has a first working state and a second working state. The first working state of the material turning component is that along the rotation direction of the drying cylinder 300, the first rotating plate 420 is on the front side of the second rotating plate 430. The second working state of the material turning component is that along the rotation direction of the drying cylinder 300, the second rotating plate 430 is on the front side of the first rotating plate 420. The first adjusting mechanism is used to rotate the rotating shaft 411, so as to enable the material turning component to complete the switching between the first working state and the second working state.

[0041] In the initial state, both the first rotating plate 420 and the second rotating plate 430 are perpendicular to the fixing plate 410, the material turning component is in the first working state, and the first rotating plate 420 is on the front side of the rotation direction of the drying cylinder 300.

[0042] The drying cylinder 300 rotates, driving multiple material turning mechanisms to rotate synchronously. The first side of the first rotating plate 420 and the fixed plate 410 turns over and scatters the material. After the material on the first rotating plate 420 is scattered, the rotating shaft 411 is rotated by the first adjusting mechanism, so that the turning component completes the switching between the first working state and the second working state. The second rotating plate 430 is located on the front side of the rotation direction of the drying cylinder 300. Then the drying cylinder 300 continues to rotate, and the second side of the second rotating plate 430 and the fixed plate 410 turns over and scatters the material. The first rotating plate 420 and the second rotating plate 430 alternately turn over the material, and both sides of the fixed plate 410 alternately contact the material, thereby extending the service life and preventing serious wear caused by long-term use of the first side or the second side of the first rotating plate 420 or the second rotating plate 430 and the fixed plate 410.

[0043] 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 scattered material will impact the first rotating plate 420 and the second rotating plate 430, 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 impacts 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.

[0044] In this embodiment, an arc-shaped housing 200 is fixedly provided on the frame 100. The arc-shaped housing 200 is located above the drying cylinder 300 and is coaxially arranged with the drying cylinder 300. Along the circumferential direction 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 provided on the rotating shaft 411, and the first gear 414 is coaxially arranged with the rotating shaft 411.

[0045] There are multiple first adjusting mechanisms, and the multiple first adjusting mechanisms are sequentially distributed along the axial direction of the drying cylinder 300. Each first adjusting mechanism includes an adjusting block 500. The adjusting block 500 is fixedly provided on the inner peripheral wall of the arc-shaped housing 200 and is located on the third side of the arc-shaped housing 200. An arc-shaped rack 510 is provided on the adjusting block 500. The arc-shaped rack 510 is coaxially arranged with the drying cylinder 300, and the first gear 414 meshes with the arc-shaped rack 510.

[0046] When the drying cylinder 300 rotates, it drives the material turning assembly to rotate synchronously. At this time, the rotating shaft 411 revolves. As the drying cylinder 300 revolves, after the first gear 414 meshes with the arc rack 510, the first gear 414 starts to rotate self - and drives the rotating shaft 411 to rotate self-. After the rotating shaft 411 rotates 180°, the first gear 414 disengages from the arc rack 510, and the material turning assembly completes the transformation between the first working state and the second working state.

[0047] In this embodiment, a plurality of square holes are formed in the drying cylinder 300, and a limiting block 412 is fixedly arranged on each rotating shaft 411. Each limiting block 412 is slidably arranged in a square hole. In the initial state, the limiting block 412 is inside the square hole to limit the rotation of the rotating shaft 411. When the limiting block 412 moves relative to the square hole so that the limiting block 412 disengages from the square hole, the rotating shaft 411 can rotate freely.

[0048] In this embodiment, a first spring 413 is arranged on each rotating shaft 411. The first spring 413 connects the fixed plate 410 and the first gear 414. A contact rod 415 is fixedly arranged on the side of the first gear 414 away from the fixed plate 410. The contact rod 415 is arranged along the axial direction of the rotating shaft 411. A guiding surface 520 is formed on the adjusting block 500. The guiding surface 520 includes an inclined surface 521 and an arc surface 522. The arc surface 522 and the inclined surface 521 are arranged in sequence 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 guiding surface 520.

[0049] When the material turning assembly rotates to the position of 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. Therefore, under the guidance of the inclined surface 521, the contact rod 415 and the rotating shaft 411 are pushed to move towards the direction close to the axis of the drying cylinder 300, so that the limiting block 412 disengages from the square hole, and the first spring 413 is compressed.

[0050] In this embodiment, a BOPP film raw material drying device further includes a plurality of second adjusting mechanisms. The plurality of second adjusting mechanisms are distributed in sequence along the axial direction of the drying cylinder 300. Each second adjusting mechanism includes an arc plate 600. The arc plate 600 is fixedly arranged on the inner peripheral wall of the arc shell 200, and the arc plate 600 is arranged on the fourth side of the arc shell 200.

[0051] The arc-shaped plate 600 and the drying cylinder 300 are coaxially arranged. An arc-shaped sliding groove 610 is formed in the arc-shaped plate 600, and the arc-shaped sliding groove 610 and the drying cylinder 300 are coaxially arranged. Guide sliding grooves are respectively formed on both sides of the arc-shaped sliding groove 610 along the axial direction of the drying cylinder 300, and the guide sliding grooves are wavy. A first through hole and a second through hole are formed in the first gear 414, and the first through hole and the second through hole are distributed along the circumferential direction of the first gear 414. When the material turning assembly is in the first working state, the first through hole is on the side close to the arc-shaped plate 600 relative to the second through hole. When the material turning assembly is in the second working state, the second through hole is on the side close to the arc-shaped plate 600 relative to the first through hole.

[0052] Each material turning assembly further includes a first connecting rod 620 and a second connecting rod 630. The first connecting rod 620 and the second connecting rod 630 are both 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. The first connecting rope 621 is fixedly connected to the first rotating plate 420. The other end of the first connecting rod 620 is provided with a first runner 622. Each first runner 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 respectively rotatably arranged at both ends of the first rotating rod.

[0053] One end of the second connecting rod 630 is slidably arranged in the second through hole, and a second connecting rope is fixedly arranged thereon. 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 runner 632. Each second runner 632 includes a second rotating rod and two second connecting wheels. The second rotating rod is arranged along the axial direction of the drying cylinder 300, and the two second connecting wheels are respectively rotatably arranged at both ends of the second rotating rod. Each first connecting wheel or each second connecting wheel is slidably arranged in a guide sliding groove.

[0054] When the material turning assembly is in the first working state, the first connecting rod 620 enters the arc-shaped sliding groove 610. When the material turning assembly is in the second working state, the second connecting rod 630 enters the arc-shaped sliding groove 610.

[0055] In this embodiment, a first channel is formed in the rotating shaft 411, and the first channel is arranged along the axial direction of the rotating shaft 411. A second channel is formed in the fixing plate 410, and the second channel is arranged along the axial direction of the rotating shaft 411. The first channel and the second channel are communicated. A third through hole is formed on the first side of the fixing plate 410, and a fourth through hole is formed on the second side of the fixing plate 410. Both the third through hole and the fourth through hole are communicated with the second channel.

[0056] The first connecting rope 621 passes through the first channel and the second channel in sequence, and after passing through the third through-hole, it is fixedly connected to the first rotating plate 420. The second connecting rope passes through the first channel and the second channel in sequence, and after passing through the fourth through-hole, it is fixedly connected to the second rotating plate 430.

[0057] In this embodiment, each guiding chute includes a plurality of bumps 611 and a plurality of grooves 612. The plurality of bumps 611 are sequentially distributed along the circumferential direction of the drying cylinder 300, and the convex surfaces of the bumps 611 face the arc-shaped plate 600. Each groove 612 is arranged between two adjacent bumps 611, and the concave surface of the groove 612 faces the arc-shaped plate 600.

[0058] When the first runner 622 on the first connecting rod 620 enters the arc-shaped chute 610, each first connecting wheel abuts against a guiding chute. Since the guiding chute is wavy, the first connecting wheel first abuts against the groove 612 of the guiding chute, and then under the guidance of the bump 611 of the guiding chute, the first connecting rod 620 moves along a direction gradually away from the axis of the drying cylinder 300. When the first connecting rod 620 moves, it drives the first rotating plate 420 to deflect towards the fixed plate 410 through the first connecting rope 621, and the included angle between the first rotating plate 420 and the fixed plate 410 becomes smaller. Then under the action of the first torsion spring, the first connecting wheel comes into the groove 612 of the guiding 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 through continuous swinging, the material is more likely to fall off from the first rotating plate 420 and is not easily agglomerated and adhered.

[0059] A first limiting disk is fixedly arranged on the first connecting rod 620, and the first limiting disk abuts against the first gear 414. A second limiting disk is fixedly arranged on the second connecting rod 630, and the second limiting disk 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.

[0060] In this embodiment, a feed inlet is opened on the upper side of one end of the drying cylinder 300, and a feed pipe 110 is arranged at the feed inlet. A discharge outlet is opened on the lower side of the other end of the drying cylinder 300, and a discharge pipe 120 is arranged at the discharge outlet. The end of the drying cylinder 300 with the feed inlet is higher than the end of the drying cylinder 300 with the discharge outlet. A hot air blower is arranged at the end of the drying cylinder 300 with the discharge outlet.

[0061] The material is put 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 inlet is higher than the end of the drying cylinder 300 with the discharge outlet. Therefore, while stirring the material, the material turning components guide the material to the discharge pipe 120.

[0062] In this embodiment, two toothed rings 130 are fixedly arranged on the outer peripheral wall of the drying cylinder 300. The two toothed rings 130 are arranged in sequence along the axial direction of the drying cylinder 300, and each toothed ring 130 is coaxially arranged with the drying cylinder 300. A BOPP film raw material drying device further includes a driving mechanism. The driving mechanism 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 meshes with a toothed ring 130. When the motor 150 is started, 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 toothed rings 130, and the drying cylinder 300 drives a plurality of material turning mechanisms to rotate synchronously.

[0063] 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 material turning assembly is in the first working state, and the first rotating plate 420 is on the front side of the rotating direction of the drying cylinder 300.

[0064] When the motor 150 is started, 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 toothed rings 130, and the drying cylinder 300 drives a plurality of material turning mechanisms to rotate synchronously. The material is put into the drying cylinder 300 through the feeding pipeline 110. When the drying cylinder 300 rotates, the first rotating plate 420 and the fixed plate 410 turn over and scatter the material. Since a plurality of material turning assemblies are spirally distributed on the drying cylinder 300, and one end of the drying cylinder 300 with a feeding port is higher than the end of the drying cylinder 300 with a discharging port. Therefore, while stirring the material, the material turning assembly guides the material to the discharging pipeline 120. Start the hot air blower to heat the material in the drying cylinder 300.

[0065] When the material turning assembly first rotates to the arc-shaped plate 600, the first runner 622 on the first connecting rod 620 enters the arc-shaped chute 610, and the first connecting wheel abuts against the guiding chute. Since the guiding chute is wavy, the first connecting wheel first abuts against the groove 612 of the guiding chute, and then under the guidance of the convex block 611 of the guiding chute, the first connecting rod 620 moves along the direction gradually away from the axis of the drying cylinder 300. When the first connecting rod 620 moves, it drives the first rotating plate 420 to deflect towards the fixing plate 410 through the first connecting rope 621, and the angle between the first rotating plate 420 and the fixing plate 410 becomes smaller. Then under the action of the first torsion spring, the first connecting wheel comes into the groove 612 of the guiding chute again, and the first rotating plate 420 is perpendicular to the fixing plate 410 again. The continuous swinging of the first rotating plate 420 can increase the range of material scattering and improve the drying efficiency of the material. And through continuous swinging, the material is more likely to fall off from the first rotating plate 420 and is not easily agglomerated and adhered.

[0066] As Figure 8 shown, the drying cylinder 300 rotates counterclockwise. When the material turning assembly rotates at the arc-shaped plate 600, the material turning assembly continuously dumps the material from the first rotating plate 420 and the fixing plate 410. When the material turning assembly rotates to the adjusting block 500, the material has been completely dumped.

[0067] The contact rod 415 first contacts the inclined surface 521. Since along the rotation direction of the drying cylinder 300, the inclined surface 521 gradually approaches the axis of the drying cylinder 300. Therefore, under the guidance of the inclined surface 521, the contact rod 415 and the rotating shaft 411 are pushed to move towards the axis of the drying cylinder 300, and then the limiting block 412 disengages from the square hole, and the first spring 413 is compressed.

[0068] After that, the contact rod 415 contacts the arc-shaped surface 522, the limiting block 412 remains in the state of disengaging from the square hole, the first gear 414 meshes with the arc-shaped rack 510, the first gear 414 rotates 180°, and drives the rotating shaft 411 to rotate 180°. So that the second rotating plate 430 is on the front side of the rotation direction of the drying cylinder 300. At this time, the material turning assembly changes from the first working state to the second working state. Then after the contact rod 415 disengages from the arc-shaped surface 522, under the action of the first spring 413, the contact rod 415 and the rotating shaft 411 are pushed to move away from the axis of the drying cylinder 300, and the limiting block 412 returns to the square hole. At this time, the second rotating plate 430 starts to mix the material. The first rotating plate 420 and the second rotating plate 430 alternately mix the material, and both sides of the fixing plate 410 alternately contact the material, so as to extend the service life and prevent serious wear caused by long-term use of the first rotating plate 420 or the second rotating plate 430 and the first side or the second side of the fixing plate 410.

[0069] Since the material will impact the first rotating plate 420 and the second rotating plate 430 after being scattered, which causes damage to the granular material by the first rotating plate 420 and the second rotating plate 430, the first torsion spring and the second torsion spring are provided so that when the material impacts 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.

[0070] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall 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 third 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 first side of the fixed plate, and a fourth through hole is provided on the second 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.

Images