CN114674117A

CN114674117A - Dehumidification desiccator is used to plastic with even drying function

Info

Publication number: CN114674117A
Application number: CN202210453129.2A
Authority: CN
Inventors: 陈建祥; 郑春娟; 何平; 祝君祖; 王建军; 祝苏辉
Original assignee: Zhejiang Yuanpai Plastic Co ltd
Current assignee: Zhejiang Yuanpai Plastic Co ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-06-28
Anticipated expiration: 2042-04-27
Also published as: CN114674117B

Abstract

The invention relates to the field of dehumidification and drying, in particular to a dehumidification drying machine with a uniform drying function for plastic. This kind of dehumidification desiccator for plastic with even drying function, through drive mechanism, the cooperation of protruding carousel and pulley stabilizer blade, drive the reciprocal shake from top to bottom of sleeve, make plastic pellet under the cooperation of spiral screen blade and sieve section of thick bamboo, tentatively sieve out the powder piece that mixes in it and unnecessary moisture, and concentrate the discharge by the drain pipe, can improve follow-up plastic pellet drying efficiency, and improve plastic pellet's production quality, simultaneously with the power supply of drying mechanism sharing, mechanical cost is less, the practicality is higher, cooperation through seven division boards, can separate the plastic pellet equal parts through the preliminary screening in the space of constituteing between the division board by the drainage board, reduce the accumulational volume of particle, simultaneously under the cooperation of activity ventilation sleeve pipe and row's miscellaneous pipe, make the area in particle contact space increase substantially.

Description

Dehumidification desiccator for plastic with even drying function

Technical Field

The invention relates to the field of dehumidification and drying, in particular to a dehumidification drying machine with a uniform drying function for plastic.

Background

With the progress of society, various plastic products are full of contents, and most of the plastic products are injected and molded by a plastic injection molding machine, so that the quality of plastic particles has a great influence on the quality of products, and the dehumidifying and drying machine is mainly used for dehumidifying and drying engineering plastic raw materials with strong hygroscopicity. In the processing process, the plastic products have the phenomena of shrinkage, crazing, bubble, cracking, flow mark, poor transparency and the like, and the main reason of the poor quality is that the plastic is not dried fully before being molded.

The following problems in the prior art are not well solved: 1. the existing dehumidification dryer for plastic mostly stores plastic particles in a material barrel, and the plastic particles are stirred and dried under the action of a stirring device, but the plastic particles are in a stacking state in the material barrel, the gaps among the particles are too small, the moisture is difficult to discharge, and the drying and dehumidification are difficult to effectively and quickly; 2. the particles in the accumulated state still come out after being stirred in time, and the drying quality is influenced due to the problem that the raw material particles are not uniformly dried enough; 2. and the plastic particles are irregular, have the piece dust that the particle size is less and the granule that the diameter is great, mix easily in the plastic particles when feeding in raw material and ejection of compact, cause ejection of compact jam and plastic particles finished product quality relatively poor.

Disclosure of Invention

The invention aims to provide a dehumidification dryer for plastic with uniform drying function, which solves the problems that the drying efficiency is low due to the fact that plastic particles are accumulated in a material barrel, the accumulated particles are easy to dry unevenly during drying, more scrap and dust are mixed in the dried plastic particles, and the particles with larger particles are easy to block during discharging. In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a dehumidification desiccator for plastic with even drying function, includes drying mechanism, the axostylus axostyle has been cup jointed in the activity of drying mechanism, and the fixed cover has connect a plurality of spacing section of thick bamboos on the axostylus axostyle, and seven first gyro wheel sliders of the outer wall fixedly connected with of spacing section of thick bamboo, drying mechanism's top fixedly connected with motor, and the output fixedly connected with drive wheel of motor, drying mechanism internal fixation has cup jointed drive mechanism, and drive mechanism's top run through drying mechanism and mesh rather than the top drive wheel, and drive mechanism's protruding carousel of top fixedly connected with, the top surface activity overlap joint of protruding carousel has just to sieve the mechanism, and just sieves the top of mechanism fixed connection at drying mechanism, drying mechanism passes through feeding hose and just sieves the inside fixed intercommunication of mechanism.

Preferably, the drying mechanism comprises a drying box, the drying box is fixedly connected to the bottom of the primary screening mechanism, an air cylinder is fixedly sleeved on the drying box, a water filtering and impurity discharging pipe is fixedly connected to the top of the inner wall of the drying box, the bottom end of the water filtering and impurity discharging pipe penetrates through the drying box and extends to the bottom side of the drying box, a flow guide hopper and a ventilation and water filtering hopper are fixedly sleeved on the water filtering and impurity discharging pipe, the outer walls of the flow guide hopper and the ventilation and water filtering hopper are fixedly connected to the inner wall of the drying box, the flow guide hopper and the ventilation and water filtering hopper are fixedly communicated through the material guide pipe, a movable ventilation sleeve is movably sleeved on the water filtering and impurity discharging pipe, a broken line ring groove is formed in the inner wall of the movable ventilation sleeve, seven first roller sliders penetrate through the water filtering and impurity discharging pipe respectively and are in sliding connection with the broken line ring groove on the side of the water filtering and impurity discharging pipe, seven partition plates are fixedly connected to the outer wall of the movable ventilation sleeve at equal intervals, a discharging pipe which is fixedly connected to the bottom of the drying box and is communicated with the inner part of the drying box, the transmission mechanism is fixedly connected to the top of the inner wall of the drying box, and the shaft lever is movably sleeved in the water filtering and impurity removing pipe.

Preferably, the transmission mechanism comprises a positioning cylinder, the drying box is fixedly connected to the top of the inner wall of the drying box, the positioning cylinder is fixedly sleeved in the water filtering and impurity removing pipe, a connecting rod is movably inserted in the positioning cylinder, the bottom end of the connecting rod penetrates through the positioning cylinder and is fixedly connected with the top end of a shaft rod below the positioning cylinder, one side, opposite to the inner wall of the connecting rod, is movably connected with a second roller slider, one end, opposite to the two second roller sliders, of the connecting rod is slidably connected with a reciprocating rod, the top end of the reciprocating rod penetrates through the drying box and is fixedly connected with the bottom of a bevel gear above the drying box, the bevel gear is meshed with the transmission wheel, and the protruding rotary disc is fixedly connected to the top end of the bevel gear.

Preferably, the primary screening mechanism includes the link, and link fixed connection is at the top of dry mechanism, the link internalization alternates there is the pulley stabilizer blade, and the top fixedly connected with sleeve of pulley stabilizer blade, the fixed screen drum that has cup jointed in the sleeve, the fixed spiral sieve blade that has cup jointed on the screen drum, and the outer wall of spiral sieve blade and the inner wall fixed connection of screen drum, one side fixedly connected with baffle of spiral sieve blade bottom, the top of feeding hose and the fixed intercommunication in bottom surface of spiral sieve blade, and feeding hose's bottom run through sleeve, link and with the fixed intercommunication in top surface of dry mechanism inner wall, the bottom activity overlap joint of pulley stabilizer blade is at the top of protruding carousel, telescopic one side fixedly connected with is rather than the drain pipe of inside intercommunication.

Preferably, the both sides of dryer be fixedly connected with rather than the electric fan heater and the exhaust pipe of inside intercommunication respectively, the ventilation hole that runs through to its inner wall is seted up to the drying cabinet outer wall, and the bottom of drying cabinet is the bucket structure that the diameter from the top down diminishes in proper order.

Preferably, the quantity of water bucket, ventilation filter water bucket and passage is a plurality of to the water conservancy diversion, the quantity of spacing section of thick bamboo cooperatees with the quantity of water bucket and ventilation filter water bucket, a plurality of the perpendicular axis from the top down of passage is in proper order anticlockwise staggered, arrange the top of material pipe and be located the bottom mounting intercommunication of the passage of below.

Preferably, the left side and the right side of the outer wall of the reciprocating rod are respectively provided with a V-shaped groove which are communicated with each other, and the second roller sliding blocks are respectively connected in the two V-shaped grooves in a sliding manner.

Preferably, the number of the pulley support legs is four, and the top of the protruding turntable is fixedly connected with a trapezoidal block respectively matched with the four pulley support legs.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the sleeve is driven to shake up and down in a reciprocating manner through the cooperation of the transmission mechanism, the raised rotary table and the pulley support legs, so that the powder scraps and redundant water mixed in the plastic particles are primarily screened out through the cooperation of the spiral sieve blades and the sieve cylinder and are intensively discharged through the drain pipe, the subsequent plastic particle drying efficiency can be improved, the production quality of the plastic particles is improved, meanwhile, the plastic particles share a power source with the drying mechanism, the mechanical cost is low, and the practicability is high.

According to the invention, through the matching of the seven partition plates, plastic particles subjected to primary screening can be equally divided into gaps formed among the seven partition plates, the volume of particle accumulation is reduced, meanwhile, under the matching of the movable ventilation sleeve and the water filtering impurity discharging pipe, the area of a particle contact space is greatly increased, the drying efficiency is further improved, the rotating movable ventilation sleeve can push the plastic particles to intermittently rotate and displace, the cyclone formed in the air duct by the fan heater can quickly and uniformly dry the particles, and the efficiency is greatly increased and is more uniform.

According to the invention, through the operation of the transmission mechanism, the first roller slide block fixedly connected with the limiting cylinders on the shaft rod is driven by the limiting cylinders to reciprocate up and down to drive the movable ventilation sleeve which is in sliding connection with the limiting cylinders through the broken line ring groove to rotate, so that plastic particles among the seven partition plates are driven to intermittently displace to the material guide pipe and fall towards the ventilation filter hopper for multi-stage uniform air drying treatment, the drying effect is better, the particles are not easy to block and discharge due to the vertically staggered and communicated structure, and the mechanical failure rate is low.

Drawings

FIG. 1 is a front cross-sectional view of a structure of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is an enlarged view taken at B in FIG. 1 in accordance with the present invention;

FIG. 4 is a top cross-sectional view of a structural divider plate of the present invention;

FIG. 5 is an expanded view of the ring groove with the fold line in the present invention.

In the figure: 1. a drying mechanism; 101. a drying oven; 102. an air duct; 103. a water and impurity filtering pipe; 104. a flow guide hopper; 105. a ventilating water filtering hopper; 106. a material guide pipe; 107. a movable ventilation sleeve; 108. a broken line ring groove; 109. a partition plate; 110. a discharge pipe; 2. a shaft lever; 3. a limiting cylinder; 4. a first roller slider; 5. a motor; 6. a driving wheel; 7. a transmission mechanism; 701. a positioning cylinder; 702. a connecting rod; 703. a second roller slider; 704. a reciprocating lever; 705. a bevel gear; 8. a convex turntable; 9. a primary screening mechanism; 901. a connecting frame; 902. a pulley leg; 903. a sleeve; 904. a screen cylinder; 905. a spiral screen blade; 906. a baffle plate; 907. a drain pipe; 10. a feeding hose.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by workers skilled in the art without any inventive work based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: the utility model provides a dehumidification desiccator for plastic with even drying function, including drying mechanism 1, axostylus axostyle 2 has been cup jointed in the activity of drying mechanism 1, and the fixed a plurality of spacing section of thick bamboo 3 that have cup jointed on the axostylus axostyle 2, and seven first gyro wheel sliders 4 of the outer wall fixedly connected with of spacing section of thick bamboo 3, the top fixedly connected with motor 5 of drying mechanism 1, and motor 5's output fixedly connected with drive wheel 6, drive mechanism 7 has been cup jointed to drying mechanism 1 internal fixation, and drive mechanism 7's top runs through drying mechanism 1 and meshes rather than top drive wheel 6, and drive mechanism 7's top fixedly connected with protruding carousel 8, protruding carousel 8's top surface activity overlap joint has prescreening mechanism 9, and prescreening mechanism 9 fixed connection is at drying mechanism 1's top, drying mechanism 1 is through feeding hose 10 and the inside fixed intercommunication of prescreening mechanism 9.

In this embodiment, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the drying mechanism 1 includes a drying box 101, the drying box 101 is fixedly connected to the bottom of the prescreening mechanism 9, an air duct 102 is fixedly sleeved on the drying box 101, a water filtering and impurity removing pipe 103 is fixedly connected to the top of the inner wall of the drying box 101, the bottom end of the water filtering and impurity removing pipe 103 penetrates through the drying box 101 and extends to the bottom side thereof, a diversion hopper 104 and a ventilation water filtering hopper 105 are fixedly sleeved on the water filtering and impurity removing pipe 103, the outer walls of the diversion hopper 104 and the ventilation water filtering hopper 105 are fixedly connected to the inner wall of the drying box 101, the diversion hopper 104 and the ventilation water filtering hopper 105 are fixedly connected to each other through a material guiding pipe 106, a movable ventilation sleeve 107 is movably sleeved on the water filtering and impurity removing pipe 103, a broken-line annular groove 108 is formed on the inner wall of the movable ventilation sleeve 107, seven first roller sliders 4 respectively penetrate through the drainage and impurity removing pipe 103 and slidably connected to the broken-line annular groove 108 on the side thereof, seven partition plates 109 are fixedly connected to the outer wall of the movable ventilation sleeve 107 at equal intervals, a discharging pipe 110 communicated with the inside of the drying box 101 is fixedly connected to the bottom of the drying box 101, the transmission mechanism 7 is fixedly connected to the top of the inner wall of the drying box 101, the shaft rod 2 is movably sleeved in the water filtering impurity discharging pipe 103, equal parts of plastic particles passing through a primary screen can be separated in gaps formed among the seven partition plates 109 through the cooperation of the seven partition plates 109, the size of particle accumulation is reduced, meanwhile, under the cooperation of the movable ventilation sleeve 107 and the water filtering impurity discharging pipe 103, the area of a particle contact space is greatly improved, the drying efficiency is further high, the rotating movable ventilation sleeve 107 can push the plastic particles to intermittently rotate and displace, the particles can be quickly and uniformly dried through whirlwind formed in the wind barrel 102 by the fan heater, and the drying is more uniform while the drying efficiency is greatly improved.

In this embodiment, as shown in fig. 1 and fig. 2, the transmission mechanism 7 includes a positioning cylinder 701, the drying box 101 is fixedly connected to the top of the inner wall of the drying box 101, the positioning cylinder 701 is fixedly sleeved in the water-filtering impurity-removing pipe 103, a connecting rod 702 is movably inserted in the positioning cylinder 701, the bottom end of the connecting rod 702 penetrates through the positioning cylinder 701 and is fixedly connected to the top end of the shaft rod 2 below the positioning cylinder 701, the opposite sides of the inner wall of the connecting rod 702 are movably connected to second roller sliders 703, the opposite ends of the two second roller sliders 703 are slidably connected to a reciprocating rod 704, the top end of the reciprocating rod 704 penetrates through the drying box 101 and is fixedly connected to the bottom of a bevel gear 705 above the drying box, the bevel gear 705 is engaged with the transmission wheel 6, the protruding turntable 8 is fixedly connected to the top of the bevel gear 705, the transmission mechanism 7, the protruding turntable 8 and the pulley support leg 902 are matched to drive the sleeve 903 to shake up and down and forth, so that the plastic particles are under the matching of the spiral screen blade 905 and the screen cylinder 904, the powder chips and the redundant water mixed in the plastic particle drying device are preliminarily screened out and are intensively discharged by the drain pipe 907, so that the drying efficiency of subsequent plastic particles can be improved, the production quality of the plastic particles is improved, and meanwhile, the plastic particle drying device and a drying mechanism share a power source, the mechanical cost is lower, and the practicability is higher.

In this embodiment, as shown in fig. 1, the primary screening mechanism 9 includes a connecting frame 901, the connecting frame 901 is fixedly connected to the top of the drying mechanism 1, a pulley support leg 902 is movably inserted into the connecting frame 901, a sleeve 903 is fixedly connected to the top end of the pulley support leg 902, a screen cylinder 904 is fixedly connected to the sleeve 903, a spiral screen blade 905 is fixedly connected to the screen cylinder 904, the outer wall of the spiral screen blade 905 is fixedly connected to the inner wall of the screen cylinder 904, a baffle 906 is fixedly connected to one side of the bottom of the spiral screen blade 905, the top end of the feeding hose 10 is fixedly communicated with the bottom surface of the spiral screen blade 905, the bottom end of the feeding hose 10 penetrates through the sleeve 903, the connecting frame 901 is fixedly communicated with the top surface of the inner wall of the drying mechanism 1, the bottom end of the pulley support leg 902 is movably connected to the top of the protruding turntable 8, and a drain pipe 907 is fixedly connected to one side of the sleeve 903.

In this embodiment, as shown in fig. 1, fig. 2 and fig. 4, a fan heater and an exhaust pipe communicated with the inside of the air duct 102 are respectively and fixedly connected to two sides of the air duct 102, a vent hole penetrating through the outer wall of the drying box 101 to the inner wall thereof is formed in the outer wall of the drying box 101, and the bottom of the drying box 101 is of a bucket-shaped structure with a diameter which is gradually reduced from top to bottom.

In this embodiment, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the number of the guiding hoppers 104, the ventilating and water filtering hoppers 105 and the guiding pipes 106 is several, the number of the limiting cylinders 3 is matched with the number of the guiding hoppers 104 and the ventilating and water filtering hoppers 105, the vertical central axes of the guiding pipes 106 are sequentially staggered counterclockwise from top to bottom, the top end of the discharging pipe 110 is fixedly communicated with the bottom end of the guiding pipe 106 located at the lowest position, the limiting cylinders 3 on the shaft rod 2 drive the first roller sliders 4 fixedly connected thereto to reciprocate up and down through the operation of the transmission mechanism 7, and drive the movable ventilation sleeve 107 slidably connected thereto through the broken line ring groove 108 to rotate, so as to drive the plastic particles between the seven partition plates 109 to intermittently displace to the guiding pipes 106, and fall down to the ventilating and water filtering hoppers 105, perform multi-stage uniform air drying treatment, and better drying effect, and the structure of the up-and-down staggered communication is not easy to cause particle blockage and discharge, and the mechanical failure rate is low.

In this embodiment, as shown in fig. 3 and 5, the left and right sides of the outer wall of the reciprocating rod 704 are respectively provided with V-shaped grooves that are mutually communicated, and the two second roller sliders 703 are respectively slidably connected in the two V-shaped grooves.

In this embodiment, as shown in fig. 1, the number of the pulley support legs 902 is four, and a trapezoidal block respectively engaged with the four pulley support legs 902 is fixedly connected to the top of the protruding turntable 8.

The use method and the advantages of the invention are as follows: when the dehumidification dryer with the uniform drying function for the plastic is used, the working process is as follows:

as shown in fig. 1, 2, 3, 4 and 5, firstly, plastic particle raw material is guided into the upper part of a spiral sieve blade 905 from the top of a sleeve 903, a motor 5 is started to drive a bevel gear 705 engaged with the sleeve to rotate through a driving wheel 6, a protruding rotary disc 8 rotates along with the rotating, when four trapezoidal blocks on the top surface of the protruding rotary disc 8 simultaneously rotate to the lower part of four pulley legs 902, the sleeve 903 can be lifted, when the four trapezoidal blocks are separated from the lower part of the pulley legs 902, the sleeve 903 falls, so as to shake and screen the plastic particles in the sleeve, the plastic particles are primarily screened out of powder scraps and excessive moisture mixed in the plastic particles under the matching of the spiral sieve blade 905 and the sieve cylinder 904 and are intensively discharged through a water discharge pipe 907, the screened plastic particles are conveyed to the upper part of a first ventilation water filtering hopper 105 positioned above the feeding hose 10, a rotating reciprocating rod 704 drives a connecting rod 702 to reciprocate up and down through a second roller block 703, the limiting cylinders 3 are driven to move back and forth through the shaft rod 2, the movable ventilation sleeves 107 are driven to rotate under the action of the first roller sliders 4 of the groups, so that plastic particles among the seven partition plates 109 are driven to intermittently rotate and move for a circle to the guide pipes 106, the ventilation and water filtration hoppers 105 fall downwards, the reciprocating operation is performed, multi-stage uniform air drying treatment is performed, the plastic particles are discharged through the matching of the last-stage guide pipes 106 and the discharge pipes 110, in the process, filtered water falls downwards to the diversion hoppers 104 and is drained into the water filtration and impurity removal pipes 103, the water is intensively discharged downwards, meanwhile, warm air is blown in the air cylinder 102 by the fan heater, cyclone is formed under the matching of the inner wall of the air cylinder 102, the particles in the cyclone can be quickly and uniformly dried, and the efficiency is greatly improved, and the drying is more uniform.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and the above-described embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a dehumidification desiccator for plastic with even drying function, includes drying mechanism (1), its characterized in that: a shaft lever (2) is movably sleeved in the drying mechanism (1), a plurality of limiting cylinders (3) are fixedly sleeved on the shaft lever (2), seven first roller slide blocks (4) are fixedly connected with the outer wall of the limiting cylinder (3), a motor (5) is fixedly connected with the top of the drying mechanism (1), the output end of the motor (5) is fixedly connected with a driving wheel (6), a transmission mechanism (7) is fixedly sleeved in the drying mechanism (1), the top end of the transmission mechanism (7) penetrates through the drying mechanism (1) and is meshed with a transmission wheel (6) above the drying mechanism, the top of the transmission mechanism (7) is fixedly connected with a convex turntable (8), the top surface of the convex turntable (8) is movably lapped with a primary screening mechanism (9), and preliminary screening mechanism (9) fixed connection is at the top of drying mechanism (1), drying mechanism (1) is through feeding hose (10) and preliminary screening mechanism (9) inside fixed intercommunication.

2. The dehumidifying dryer for plastics having a uniform drying function as claimed in claim 1, wherein: the drying mechanism (1) comprises a drying box (101), the drying box (101) is fixedly connected to the bottom of the primary screening mechanism (9), an air duct (102) is fixedly sleeved on the drying box (101), a water filtering and impurity discharging pipe (103) is fixedly connected to the top of the inner wall of the drying box (101), the bottom end of the water filtering and impurity discharging pipe (103) penetrates through the drying box (101) and extends to the bottom side of the drying box, a flow guide hopper (104) and a ventilation and water filtering hopper (105) are fixedly sleeved on the water filtering and impurity discharging pipe (103), the outer walls of the flow guide hopper (104) and the ventilation and water filtering hopper (105) are fixedly connected to the inner wall of the drying box (101), the flow guide hopper (104) and the ventilation and water filtering hopper (105) are fixedly communicated through a material guide pipe (106), a movable ventilation sleeve (107) is movably sleeved on the water filtering and impurity discharging pipe (103), and a broken line (108) is formed on the inner wall of the movable ventilation sleeve (107), seven first gyro wheel slider (4) run through drainage trash removal pipe (103) and the broken line annular groove (108) sliding connection of its avris respectively, seven division boards (109) of outer wall equidistance fixedly connected with of activity ventilation sleeve pipe (107), the bottom fixedly connected with of drying cabinet (101) is rather than the row of inside intercommunication expect tub (110), drive mechanism (7) fixed connection is at the top of drying cabinet (101) inner wall, axostylus axostyle (2) activity cup joints in drainage trash removal pipe (103).

3. The dehumidifying dryer for plastics having a uniform drying function as claimed in claim 2, wherein: the transmission mechanism (7) comprises a positioning cylinder (701), the drying box (101) is fixedly connected to the top of the inner wall of the drying box (101), and the positioning cylinder (701) is fixedly sleeved in the water-filtering impurity-removing pipe (103), a connecting rod (702) is movably inserted in the positioning cylinder (701), the bottom end of the connecting rod (702) penetrates through the positioning cylinder (701) and is fixedly connected with the top end of the shaft lever (2) below the positioning cylinder, one side of the inner wall of the connecting rod (702) opposite to the inner wall is movably connected with a second roller sliding block (703), and one end of the two second roller sliding blocks (703) which is opposite to the first roller sliding blocks is connected with a reciprocating rod (704) in a sliding way, the top end of the reciprocating rod (704) penetrates through the drying box (101) and is fixedly connected with the bottom of the bevel gear (705) above the drying box, the bevel gear (705) is meshed with the driving wheel (6), and the convex turntable (8) is fixedly connected to the top end of the bevel gear (705).

4. The dehumidifying dryer for plastics having a uniform drying function as claimed in claim 1, wherein: the primary screening mechanism (9) comprises a connecting frame (901), the connecting frame (901) is fixedly connected to the top of the drying mechanism (1), pulley support legs (902) are movably inserted in the connecting frame (901), sleeves (903) are fixedly connected to the top ends of the pulley support legs (902), a screen cylinder (904) is fixedly sleeved in the sleeves (903), spiral screen blades (905) are fixedly sleeved on the screen cylinder (904), the outer walls of the spiral screen blades (905) are fixedly connected with the inner wall of the screen cylinder (904), a baffle (906) is fixedly connected to one side of the bottom of each spiral screen blade (905), the top end of the feeding hose (10) is fixedly communicated with the bottom surfaces of the spiral screen blades (905), the bottom end of the feeding hose (10) penetrates through the sleeves (903) and the connecting frame (901) and is fixedly communicated with the top surface of the inner wall of the drying mechanism (1), and the bottom ends of the pulley support legs (902) are movably overlapped on the top of the protruding turntables (8), one side of the sleeve (903) is fixedly connected with a drain pipe (907) communicated with the interior of the sleeve.

5. The dehumidifying dryer for plastics having a uniform drying function as claimed in claim 2, wherein: the fan heater and the exhaust pipe of both sides difference fixedly connected with rather than inside intercommunication of dryer (102), ventilation hole to its inner wall is seted up to drying cabinet (101) outer wall, and the bottom of drying cabinet (101) is the bucket structure that the diameter from the top down diminishes in proper order.

6. The dehumidifying dryer for plastics having a uniform drying function as claimed in claim 2, wherein: the quantity of water bucket (104), ventilation filter water bucket (105) and passage (106) is a plurality of to the water conservancy diversion, the quantity of a spacing section of thick bamboo (3) cooperatees with the quantity of water bucket (104) and ventilation filter water bucket (105), a plurality of the perpendicular axis from the top down of passage (106) is anticlockwise staggered in proper order, arrange the top of material pipe (110) and be located the bottom mounting intercommunication of the passage (106) of below.

7. The dehumidifying and drying machine for plastics with uniform drying function as claimed in claim 3, wherein: the left side and the right side of the outer wall of the reciprocating rod (704) are respectively provided with V-shaped grooves which are communicated with each other, and the two second roller sliders (703) are respectively connected in the two V-shaped grooves in a sliding manner.

8. The dehumidifying dryer for plastics having a uniform drying function as claimed in claim 4, wherein: the number of the pulley support legs (902) is four, and the top of the protruding turntable (8) is fixedly connected with trapezoidal blocks respectively matched with the four pulley support legs (902).