Dehydration device for cleaned PET (Polyethylene Terephthalate) bottle flakes

Abstract

The invention relates to a dehydration device for PET bottle chips after cleaning, and belongs to the technical field of PET bottle chip dehydration, the dehydration device comprises a base and supporting plates fixedly connected to the left side and the right side of the base, a dehydration machine barrel is arranged between the two supporting plates, and a feeding rotor structure is arranged in the dehydration machine barrel. According to the dewatering device for the cleaned PET bottle chips, the rotating shaft and the rotating cylinder are arranged, so that the rotating cylinder can rotate in the dewatering machine cylinder, feeding guide blades and first rotor blades are arranged, and meanwhile, no gap exists between the feeding guide blades and the first rotor blades, so that the dewatering efficiency is improved; therefore, the problems of material leakage and air leakage during feeding can be fundamentally solved, the air inlet amount of the dewatering machine barrel is increased, meanwhile, by arranging the air conveying blades and the air conveying pipeline, the upward air conveying air force and the conveying flow speed are increased, evaporation of water on the surfaces of bottle pieces can be accelerated through air flow, the effect of further removing water is achieved, and the service life of the dewatering machine barrel is prolonged. Therefore, the dehydration effect is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of PET bottle flake dehydration, in particular to a device for dehydrating PET bottle flakes after washing. Background Art

[0002] PET bottle flakes, or polyethylene terephthalate bottle flakes, are an important plastic raw material. The clear and transparent appearance makes the package contents clearly visible, which is very important in the packaging applications of food, beverages, daily chemicals and other products, and can attract consumers and show the quality and appearance of the product. It can withstand a certain high temperature without deformation or damage, and is suitable for packaging processes that require high temperature treatment, such as hot filling beverages, such as the hot filling production process of some tea beverages, juice drinks, etc.

[0003] Moisture content is a very important indicator in bottle flake quality testing. The industry's moisture content is usually 1-2%. However, in the past year, downstream customers have increasingly higher requirements for bottle flake product quality standards, especially moisture indicators, and the moisture index for 3A-grade pure white bottle flakes is required to be less than 1%.

[0004] According to production tests and long-term production practices, it is found that the existing domestic dehydrators cannot meet the dehydration index requirement of less than 1%, and there are also various problems and defects. These problems and defects include: 1. The dehydration effect is not up to standard: the average dehydration effect of the existing dehydrators is 1.2-2%; 2. The internal blades of the dehydrator wear quickly, affecting the service life; 3. The upward wind conveying effect of the dehydrator is not good, and the unit hourly conveying volume does not meet our company's requirements; 4. After the dehydrator has been used for a period of time, problems such as loud noise and large machine vibration occur, which cannot meet production needs.

[0005] After disassembling and studying the company's existing dehydrators, we believe that the main reasons for the above problems and defects are: 1. The direct reason affecting the dehydration effect and the insufficient upward air delivery effect: There are structural defects in the guide vanes and conveying rotor blades at the feed inlet of the dehydrator, which is reflected in the design of a large gap between the feed guide vanes and the conveying rotor blades, which directly leads to problems such as air leakage and material leakage. In particular, the air leakage problem at the feed inlet leads to insufficient air volume, which directly affects the dehydration effect on the one hand; on the other hand, it directly affects the upward air delivery effect. 2. The service life of the dehydrator: The steel thickness of the guide vanes and the upward air delivery blades is insufficient, and the continuous and huge impact of the bottle flakes on the above blades is underestimated, resulting in serious wear of the blades after long-term use. 3. The reason for the noise to increase and the vibration of the equipment after a period of use: After the wear of the guide vanes and the air delivery blades reaches a certain degree, the center of gravity of the equipment changes, which directly affects the dynamic balance of the equipment and causes equipment vibration problems. Therefore, a PET bottle flake dehydration device after washing is proposed to solve the above problems. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides a PET bottle flakes post-cleaning dehydration device, which has the advantage of improving the dehydration efficiency and solves the problem that the dehydration effect of the existing dehydrator is not up to standard and the internal blades of the dehydrator wear quickly, affecting the service life.

[0007] To achieve the above object, the present invention provides the following technical solution: a PET bottle flakes post-washing dehydration device, comprising a base and support plates fixedly connected to the left and right sides of the base, a dehydration barrel is arranged between the two support plates, and a feeding rotor structure is arranged inside the dehydration barrel;

[0008] The feeding rotor structure includes a rotating shaft rotatably connected to the inside of the dehydrator barrel, the outside of the rotating shaft is fixedly connected to a rotating cylinder, one side of the outer surface of the rotating cylinder is fixedly connected to a feed guide blade, the outer surface of the rotating cylinder is respectively fixedly connected to a first rotor blade and a second rotor blade, the first rotor blade is fixedly connected to the feed guide blade, and the side of the outside of the rotating cylinder away from the feed guide blade is fixedly connected to an air delivery blade.

[0009] Furthermore, the number of the feed guide blades is four, and the four feed guide blades are evenly distributed on the outer surface of the rotating cylinder, and the number of the first rotor blades is the same as the number of the feed guide blades.

[0010] Furthermore, the number of the air conveying blades is six, and the six air conveying blades are evenly distributed outside the rotating cylinder.

[0011] Furthermore, a barrel cover is hinged on the top of the dehydrating barrel, a feed hopper connected to the inside of the barrel cover is fixedly connected to the top of the barrel cover, and a drain pipe is fixedly connected to the front of the bottom of the dehydrating barrel.

[0012] Furthermore, the left and right sides of the dehydration machine barrel are fixedly connected with air conveying boxes, the top of the air conveying box is fixedly connected with a docking pipe extending into the interior thereof, and the top of the docking pipe is fixedly installed with an air conveying pipe.

[0013] Furthermore, a support rod is fixedly connected between the two support plates, and two fixed blocks are fixedly connected between the support rod and the dehydration barrel.

[0014] Furthermore, the number of the support rods is two, and the two support rods are symmetrically distributed on the front and back sides of the dehydration barrel, and the dehydration barrel is installed between the two support rods through a fixing block.

[0015] Furthermore, a driving motor is fixedly installed on the front side of the top of the base, a first pulley is fixedly connected to the output shaft of the driving motor, a second pulley is rotatably installed on the side of the dehydration barrel close to the first pulley, and a transmission belt is transmission-connected between the first pulley and the second pulley.

[0016] Furthermore, the first belt pulley and the second belt pulley are of the same shape and size, and one end of the second belt pulley is fixedly connected to the rotating shaft.

[0017] Furthermore, a support seat is fixedly installed at the bottom of the base, and the number of the support seats is four, and the four support seats are evenly distributed at the bottom of the base.

[0018] Compared with the prior art, the present invention provides a PET bottle flakes post-cleaning dehydration device, which has the following beneficial effects:

[0019] 1. The device for dehydrating PET bottle flakes after washing is provided with a rotating shaft and a rotating cylinder so that the rotating cylinder can rotate inside the dehydrating cylinder. A feed guide blade and a first rotor blade are provided. At the same time, since there is no gap between the feed guide blade and the first rotor blade, the problems of material leakage and air leakage during feeding can be fundamentally solved, and the air intake of the dehydrating cylinder is increased. At the same time, the wind force and conveying flow rate of the upward wind are enhanced by providing air delivery blades and air delivery pipes. The air flow can accelerate the evaporation of water on the surface of the bottle flakes, play a role in further removing water, and thus effectively improve the dehydration effect.

[0020] 2. The PET bottle flakes post-cleaning dehydration device is provided with a driving motor to drive the first pulley to rotate, and then the first pulley drives the transmission belt and the second pulley to rotate at the same time, so that the rotating shaft can drive the rotating drum to rotate, thereby achieving the effect of dehydration and feeding, solving the problem that the dehydration effect of the existing dehydrator is not up to standard and the internal blades of the dehydrator wear quickly, affecting the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural front view of a PET bottle flakes post-cleaning dehydration device of the present invention;

[0022] Figure 2 It is a structural cross-sectional view of a dehydrating barrel of a device for dehydrating PET bottle flakes after washing according to the present invention;

[0023] Figure 3 It is a structural schematic diagram of a rotating drum of a PET bottle flakes post-cleaning and dehydration device of the present invention;

[0024] Figure 4 A top view of the structure of a rotating drum of a PET bottle flakes post-cleaning and dehydration device according to the present invention;

[0025] Figure 5 It is a structural side view of a rotating drum of a PET bottle flakes post-cleaning and dehydration device of the present invention;

[0026] Figure 6 This is a structural stereogram of a device for dehydrating PET bottle flakes after washing according to the present invention.

[0027] In the figure: 1 base, 2 support plate, 3 dehydration barrel, 4 rotating shaft, 5 rotating barrel, 6 feed guide blade, 7 first rotor blade, 8 second rotor blade, 9 air delivery blade, 10 barrel cover, 11 feed hopper, 12 air delivery box, 13 docking pipe, 14 air delivery pipe, 15 support rod, 16 fixed block, 17 drain pipe, 18 drive motor, 19 first pulley, 20 second pulley, 21 transmission belt, 22 support seat. DETAILED DESCRIPTION

[0028] 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.

[0029] See also Figures 1 to 6 In this embodiment, a PET bottle flakes post-washing dehydration device comprises a base 1 and support plates 2 fixedly connected to the left and right sides of the base 1, a dehydration barrel 3 is arranged between the two support plates 2, a feeding rotor structure is arranged inside the dehydration barrel 3, the feeding rotor structure comprises a rotating shaft 4 rotatably connected to the inside of the dehydration barrel 3, a rotating cylinder 5 is fixedly connected to the outside of the rotating shaft 4, a feed guide blade 6 is fixedly connected to one side of the outer surface of the rotating cylinder 5, a first rotor blade 7 and a second rotor blade 8 are respectively fixedly connected to the outer surface of the rotating cylinder 5, the first rotor blade 7 is fixedly connected to the feed guide blade 6, and a wind delivery blade 9 is fixedly connected to the side of the rotating cylinder 5 away from the feed guide blade 6.

[0030] Among them, the number of feed guide blades 6 is four, and the four feed guide blades 6 are evenly distributed on the outer surface of the rotating cylinder 5. The number of first rotor blades 7 is the same as the number of feed guide blades 6. The number of air delivery blades 9 is six, and the six air delivery blades 9 are evenly distributed on the outside of the rotating cylinder 5.

[0031] It should be noted that the top of the dehydrating barrel 3 is hinged with a barrel cover 10 , the top of the barrel cover 10 is fixedly connected with a feed hopper 11 communicated with the interior thereof, and the front of the bottom of the dehydrating barrel 3 is fixedly connected with a drain pipe 17 .

[0032] It should be noted that the thickness of the feed guide blades 6 and the air delivery blades 9 is significantly increased compared to the previous thickness, which can enhance the impact resistance of the feed guide blades 6 and the air delivery blades 9, increase the service life of the equipment, and at the same time solve the problems of high machine noise and machine vibration caused by excessive blade wear affecting the dynamic balance of the equipment.

[0033] It should be noted that after repeated and long-term actual production tests, the technical transformation of the dehydration device has greatly improved its use effect and service life, which is specifically reflected in: 1. The dehydration effect has been significantly improved, and the moisture content of rPET bottle flakes has increased from 1.2-2% to about 0.8%, and the moisture index has been reduced by at least 33.37%; 2. The output per unit time and the upward wind delivery volume have increased: from the previous 4 tons / hour to 4.5 tons / hour; 3. The service life has been extended: after the transformation of the feed guide blades and upward wind delivery blades, the durability of the dehydrator has been greatly improved, and the failure frequency has been reduced from the previous 1 time / 4-6 months to 1 time / 8-12 months; 4. The problems of large vibration and noise in the dehydration device have been completely solved.

[0034] In this embodiment, the left and right sides of the dehydration barrel 3 are fixedly connected with an air delivery box 12, the top of the air delivery box 12 is fixedly connected with a docking pipe 13 extending into the interior thereof, and the top of the docking pipe 13 is fixedly installed with an air delivery pipe 14.

[0035] In this embodiment, a support rod 15 is fixedly connected between the two support plates 2, and two fixed blocks 16 are fixedly connected between the support rod 15 and the dehydration barrel 3. There are two support rods 15, and the two support rods 15 are symmetrically distributed on the front and back of the dehydration barrel 3. The dehydration barrel 3 is installed between the two support rods 15 through the fixed blocks 16.

[0036] In this embodiment, a driving motor 18 is fixedly installed on the front side of the top of the base 1, and a first pulley 19 is fixedly connected to the output shaft of the driving motor 18. A second pulley 20 is rotatably installed on the side of the dehydration barrel 3 close to the first pulley 19, and a transmission belt 21 is transmission-connected between the first pulley 19 and the second pulley 20.

[0037] Among them, the first pulley 19 and the second pulley 20 have the same shape and size, one end of the second pulley 20 is fixedly connected to the rotating shaft 4, and a controller is fixedly installed on the front of the top of the base 1, which can control the rotation speed of the drive motor 18, thereby increasing the rotation speed, increasing the air intake of the dehydration device, improving the dehydration effect, and enhancing the wind force and conveying flow rate of the upward wind.

[0038] In this embodiment, a support seat 22 is fixedly installed at the bottom of the base 1 . The number of the support seats 22 is four, and the four support seats 22 are evenly distributed at the bottom of the base 1 .

[0039] When this embodiment is in use, the staff first starts the driving motor 18 to drive the first pulley 19 and the second pulley 20 to rotate. At this time, the rotating cylinder 5 rotates inside the dehydrating cylinder 3, and then the air conveyor is started to achieve the effect of upward air conveying inside the dehydrating cylinder 3. Then the staff pours the bottle chips into the dehydrating cylinder 3 through the feeding hopper 11. At this time, the feeding guide blades 6 and the first rotor blades 7 will feed the bottle chips to the right, and then the second rotor blades 8 continue to feed the bottle chips. When the bottle chips are transported to the inside of the air conveying box 12, most of the moisture on the surface of the bottle chips is evaporated due to the upward air conveying, and the bottle chips are transported to the designated position through the air conveying pipe 14.

[0040] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing disclosed power connection technology is also common knowledge in the field and will not be repeated in the article.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PET bottle flakes post-cleaning dehydration device, comprising a base (1) and support plates (2) fixedly connected to the left and right sides of the base (1), characterized in that: A dehydrator barrel (3) is arranged between the two support plates (2), and a feeding rotor structure is arranged inside the dehydrator barrel (3); The feeding rotor structure comprises a rotating shaft (4) rotatably connected to the inside of a dehydrator barrel (3); the outside of the rotating shaft (4) is fixedly connected to a rotating cylinder (5); one side of the outer surface of the rotating cylinder (5) is fixedly connected to a feed guide blade (6); the outer surface of the rotating cylinder (5) is respectively fixedly connected to a first rotor blade (7) and a second rotor blade (8); the first rotor blade (7) is fixedly connected to the feed guide blade (6); and the side of the outside of the rotating cylinder (5) away from the feed guide blade (6) is fixedly connected to an air delivery blade (9).

2. A PET bottle flakes post-cleaning dehydration device according to claim 1, characterized in that: The number of the feed guide blades (6) is four, and the four feed guide blades (6) are evenly distributed on the outer surface of the rotating cylinder (5). The number of the first rotor blades (7) is the same as the number of the feed guide blades (6).

3. The device for dehydrating PET bottle flakes after washing according to claim 1, characterized in that: The number of the air conveying blades (9) is six, and the six air conveying blades (9) are evenly distributed outside the rotating cylinder (5).

4. The device for dehydrating PET bottle flakes after washing according to claim 1, characterized in that: The top of the dehydrator barrel (3) is hinged with a barrel cover plate (10), the top of the barrel cover plate (10) is fixedly connected with a feed hopper (11) which is in communication with the interior thereof, and the front of the bottom of the dehydrator barrel (3) is fixedly connected with a drainage pipe (17).

5. The device for dehydrating PET bottle flakes after washing according to claim 1, characterized in that: The left and right sides of the dehydrator barrel (3) are fixedly connected to an air delivery box (12), the top of the air delivery box (12) is fixedly connected to a docking pipe (13) extending into the interior thereof, and the top of the docking pipe (13) is fixedly installed with an air delivery pipe (14).

6. The device for dehydrating PET bottle flakes after washing according to claim 1, characterized in that: A support rod (15) is fixedly connected between the two support plates (2), and two fixing blocks (16) are fixedly connected between the support rod (15) and the dehydrator barrel (3).

7. The device for dehydrating PET bottle flakes after washing according to claim 6, characterized in that: The number of the support rods (15) is two, and the two support rods (15) are symmetrically distributed on the front and back sides of the dehydrator barrel (3), and the dehydrator barrel (3) is installed between the two support rods (15) via a fixing block (16).

8. The device for dehydrating PET bottle flakes after washing according to claim 1, characterized in that: A driving motor (18) is fixedly mounted on the front of the top of the base (1); a first belt pulley (19) is fixedly connected to the output shaft of the driving motor (18); a second belt pulley (20) is rotatably mounted on a side of the dehydrator barrel (3) close to the first belt pulley (19); a transmission belt (21) is transmission-connected between the first belt pulley (19) and the second belt pulley (20).

9. The device for dehydrating PET bottle flakes after washing according to claim 8, characterized in that: The first belt pulley (19) and the second belt pulley (20) are of the same shape and size, and one end of the second belt pulley (20) is fixedly connected to the rotating shaft (4).

10. The device for dehydrating PET bottle flakes after washing according to claim 1, characterized in that: A support seat (22) is fixedly mounted on the bottom of the base (1), and the number of the support seats (22) is four, and the four support seats (22) are evenly distributed on the bottom of the base (1).

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