Air dryer of plastic extruder
By introducing a water guide trough and an adjustable air box structure into the plastic extruder air dryer, the problems of cooling water collection and air drying angle adjustment are solved, achieving efficient air drying and resource conservation.
Patent Information
- Application Number
- CN202422945894.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-29
AI Technical Summary
The existing drying mechanism of plastic extruders cannot effectively collect the cooling water blown off the continuous body, which leads to equipment corrosion. In addition, the fixed angle of the drying head cannot be adjusted, resulting in poor drying effect and waste of resources.
A wind dryer with a water guide trough and an adjustable-angle air box structure was designed. The water guide trough collects cooling water, and the air outlet at the bottom of the air box can be flexibly adjusted. Combined with the blower air supply system, the cooling water can be collected and the drying angle can be flexibly adjusted.
It effectively avoids equipment corrosion caused by cooling water blowing, improves drying efficiency, saves resource consumption, and reduces production costs.
Smart Images
Figure CN223520145U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of plastic extrusion processing field, especially a kind of plastic extruder air dryer. BACKGROUND
[0002] Plastic extruder is a kind of plastic extrusion processing equipment, its principle is to be entered into extruder from hopper with the material of plastic texture, under the rotation of extruder screw, it is transported forward, material receives the heating of barrel in forward movement, and through the shearing and compression effect brought by screw, material is molten, realized the change between glass state, high elastic state and viscous flow state of material, then pressurization is carried out, material in viscous flow state passes the die with certain shape, according to the die and become cross section and die shape similar continuous body, the continuous body from die comes out to be shaped quickly and pass through cooling water tank connected in the outside of extruder die end port, continuous body is shaped quickly after passing through cooling water tank, and then is dried by air through air drying mechanism connected in the rear end of cooling water tank to the continuous body after cooling, cooling water on continuous body is blown away and dried from cooling water tank.
[0003] The existing air drying mechanism is all connected with box type air drying head using air blower, air is sent to air drying head by air blower, and the continuous body passing through the air outlet below air drying head is blown by air drying head, and the air drying of continuous body is tried. However, when the continuous body is dried by this air drying mechanism, the cooling water blown off from the continuous body will drop to the ground, causing the ground to be wet, and the blown cooling water will also be attached to the cooling machine and its auxiliary equipment, which is easy to cause equipment rust. In addition, the number of air drying heads on this air drying mechanism is fixed, and cannot be adjusted according to the angle and path length required for the air drying of continuous body, which is easy to cause the phenomenon of poor air drying effect and waste of resources. SUMMARY
[0004] The technical problem to be solved by the utility model is to provide a plastic extruder air dryer which can collect and store the cooling water blown off from the continuous body and can be flexibly adjusted according to the appropriate blowing angle required by the continuous body.
[0005] In order to solve the above technical problems, the utility model is through the following technical scheme realizes: a kind of plastic extruder air dryer, including air blower and with the air-drying head of air blower connection, further include water guide groove, the water guide groove is set by the support foot of fixed setting in its bottom and is set above the top of air blower, the air-drying head is made of ventilation branch pipe and the air bellow of movably connected in ventilation branch pipe upper end, the air bellow can be rotated relative to the ventilation branch pipe, the air bellow top opening, this opening is provided with the closure that is sealed with it, the closure is fixedly connected with the air bellow by snap, the air bellow bottom is provided with the air hole of inside and outside intercommunication along its length direction, the air bellow is suspended in the top of water guide groove, the air hole and the top of water guide groove correspond up and down;The water guide groove top is axially connected with guide roller in the slot, the guide roller has a plurality, and it is equidistantly and parallelly arranged along the length direction of water guide groove;The water guide groove one side is provided with ventilation main pipe and is fixedly connected along its length direction, the ventilation main pipe is interconnected with the air outlet of air blower by pipeline, the lower end of ventilation branch pipe is connected together with ventilation main pipe and is interconnected, the air blower is sent air to ventilation main pipe by its air outlet, and the air in ventilation main pipe enters air bellow by ventilation branch pipe and is sent air to the top surface of water guide groove by the air hole of air bellow bottom.
[0006] Further, the ventilation branch pipe is in the shape of "[", one end of the air bellow is provided with an inner and outer communication connection hole, the inner side of the connection hole is provided with a ring-shaped limit main tooth which is in line with the outer contour of the connection hole; the connection hole is provided with a limit sleeve which is inserted and matched with the connection hole, the limit sleeve is tightly sleeved on the outer end of the ventilation branch pipe, one end of the limit sleeve corresponding to the end of the upper end of the ventilation branch pipe extends into the air bellow, the outer part of the part of the limit sleeve located in the air bellow is provided with a limit secondary tooth which is in line with the limit main tooth and is in tooth shape; the part of the limit sleeve located outside the air bellow is provided with a limit stop ring, the limit stop ring has a distance with the air bellow, the part of the limit sleeve located between the limit stop ring and the air bellow is provided with a spring outside, one end of the spring is in contact with the limit stop ring, and the other end is in contact with the outer end surface of the air bellow.
[0007] Further, the part of the limit sleeve close to the two ends is provided with an external thread, the two groups of external threads are smooth surfaces, the smooth surface is in sliding fit with the connection hole; the limit stop ring is in thread fit with the external thread at one end of the limit sleeve, and the limit secondary tooth is in thread fit with the external thread at the other end of the limit sleeve.
[0008] Further, the inner wall of the limit sleeve is provided with an inner recess limit groove, and the upper end of the ventilation branch pipe is provided with a limit protrusion which is inserted and matched with the limit groove.
[0009] Further, the outer side of the ventilation main pipe is provided with a wind guide hole in communication with the inside of the ventilation main pipe, and the outer side of the wind guide hole is fixedly welded with a plug-in end with a "U" shaped structure in end face, the inner wall surface of the plug-in end is provided with a plug-in slot, the plug-in slot is provided with a plug plate in plug-in cooperation with the plug-in slot, the plug plate is fixedly welded with the lower end of the ventilation branch pipe, and the end face of the plug plate is provided with a ventilation hole in communication with front and back, the ventilation hole is in communication with the ventilation branch pipe and can correspond to the wind guide hole.
[0010] Further, the air drying heads are arranged at intervals along the length direction of the water guide groove.
[0011] Further, the water guide groove is arranged from high to low in a slope direction from front to back.
[0012] Further, the bottom of the air blower is provided with a support.
[0013] Compared with the prior art, the plastic extruder is additionally provided with the water guide groove with a slope, the water guide groove is located directly below the wind box of the air drying head, the top slot of the water guide groove corresponds to the air outlet at the bottom of the wind box, the cooling water on the continuous body passing through the slot can be blown into the slot of the water guide groove through the air drying head, the collection of the cooling water blown from the continuous body is realized, the cooling water is not easy to be blown to the extruder and its auxiliary equipment, and the rusting of the equipment is avoided; in addition, the angle of the wind box of the air drying head can be flexibly adjusted, the angle between the air outlet at the bottom of the wind box and the top of the water guide groove is adjusted, the blowing angle of the air outlet to the continuous body passing through the water guide groove can be flexibly adjusted, the air drying effect and efficiency of the continuous body are ensured, the waste of wind and electric resources caused by low air drying efficiency is avoided, and the production cost is saved. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.
[0015] Figure 1 is a front perspective structural schematic view of the air dryer of the plastic extruder;
[0016] Figure 2 is a back perspective structural schematic view of the air dryer of the plastic extruder;
[0017] Figure 3 is Figure 2 is a structure enlarged view of A in the figure;
[0018] Figure 4is a front structure schematic view of a plastic extruder air dryer of the utility model;
[0019] Figure 5 is a back structure schematic view of a plastic extruder air dryer of the utility model;
[0020] Figure 6 is a three-dimensional structure schematic view of a drying head in a plastic extruder air dryer of the utility model;
[0021] Figure 7 is an internal structure schematic view of a drying head in a plastic extruder air dryer of the utility model;
[0022] Figure 8 is a side structure sectional view of a drying head in a plastic extruder air dryer of the utility model;
[0023] Figure 9 is a ventilation branch pipe structure schematic view in a plastic extruder air dryer of the utility model.
[0024] In the figure: 1, water guide groove; 2, support leg; 3, guide roller; 4, air blower; 41, support; 5, ventilation main pipe; 51, plug-in end; 511, plug-in slot; 52, air guide hole; 6, drying head; 61, ventilation branch pipe; 62, plugboard; 621, ventilation hole; 63, air bellow; 631, cover; 632, buckle; 633, limiting main tooth; 634, air inlet; 635, connection hole; 64, spring; 65, limiting sleeve; 651, limiting check ring; 652, limiting secondary tooth; 653, limiting protrusion. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the embodiments of the present invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships commonly used when the product of the present invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0027] Furthermore, the use of terms such as "horizontal" or "vertical" does not imply that the component must be absolutely horizontal or vertical, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure or component must be completely horizontal, but can be slightly tilted.
[0028] In the description of the embodiments of this utility model, "a plurality of" means at least two.
[0029] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0030] Example
[0031] Please refer to the instruction manual attached. Figure 1 , 2 As shown in Figures 4 and 5, the instruction manual is attached. Figure 1 , 2, 4 and 5 are shown as a plastic extruder air dryer specific implementation cases of the utility model, the implementation case shown plastic extruder air dryer is used for the continuous body extruded in the plastic extruder after cooling in cooling water and carries out the work of air drying, it includes air blower 4 and the air drying head 6 connected with air blower 4, air blower 4 generates the wind required for cooling, and the wind is blown on the continuous body extruded by the delivery and guidance of air drying head 6, and the continuous body is air dried, in order to avoid the cooling water carried by the continuous body after passing through the cooling water tank to be blown away in the air drying process and cause the environment humid, make the extruder and its auxiliary equipment easy to cause corrosion, the plastic extruder air dryer still includes the water guide groove 1 for gathering the cooling water blown off in the continuous body air drying process, please refer to the attached drawings of the specification Figure 1 And 2 As shown, the slot of the water guide groove 1 is upward, for water receiving, and in order to facilitate the cooling water blown off on the continuous body to be quickly discharged after entering the water guide groove 1; in order to facilitate the movement of the continuous body, please refer to the attached drawings of the specification Figure 1 And 2 As shown, the slot of the water guide groove 1 is upward, for water receiving, and in order to facilitate the cooling water blown off on the continuous body to be quickly discharged after entering the water guide groove 1; in order to facilitate the movement of the continuous body, please refer to the attached drawings of the specification Figure 5 And 6 As shown, the slot of the water guide groove 1 is upward, for water receiving, and in order to facilitate the cooling water blown off on the continuous body to be quickly discharged after entering the water guide groove 1; in order to facilitate the movement of the continuous body, please refer to the attached drawings of the specification Figure 1 、 2As shown in Figures 4 and 5, to facilitate the air delivery of the blower 4, the blower 4 is positioned near the center of the bottom of the water guide trough 1. A support 41 is installed at its bottom to support the blower 4, minimizing the distance between the blower 4 and the water guide trough 1. Simultaneously, the water guide trough 1 is located above the top of the blower 4, preventing cooling water from being blown onto the blower 4, thus improving the safety of the blower 4 and consequently enhancing the safety of production processes. To ensure effective drying of the continuous material passing over the top of the water guide trough 1, multiple drying heads 6 are provided, arranged at equal intervals along the length of the water guide trough 1. This allows the continuous material passing through the water guide trough 1 to be dried by airflow from the multiple drying heads 6 arranged along its path, improving the drying effect. For details on the air delivery effect of the drying heads 6, please refer to the appendix of the instruction manual. Figure 6 As shown, the air dryer head 6 consists of a ventilation branch pipe 61 and an air box 63 movably connected to the upper end of the ventilation branch pipe 61. Please refer to the appendix of the instruction manual. Figure 9 As shown, the upper and lower ends of the ventilation branch pipe 61 are bent at 90 degrees in the same direction, forming a "[" shape. The length of the bent portion at the upper end of the ventilation branch pipe 61 is longer than the length of the bent portion at the lower end. One end of the air box 63 is movably connected to the upper end of the ventilation branch pipe 61. The air box 63 can rotate relative to the center of the end face of the ventilation branch pipe 61, and its angle can be adjusted. To facilitate the blowing out of the air entering the air box 63, an air outlet 634 with internal and external communication is provided at the bottom of the air box 63 along its length. It should be noted that the air box 63 is suspended above the top of the water guide trough 1 through the ventilation branch pipe 61, and the air outlet 634 corresponds vertically to the top of the water guide trough 1. The continuous body on the water guide 1 passes under the air outlet 634, and the continuous body passing under it is dried by air blowing through the air outlet 634. Please refer to the appendix of the instruction manual. Figure 2 and 5 As shown, a ventilation main pipe 5 is fixedly connected to one side of the water guide channel 1 along its length. The ventilation main pipe 5 is fixedly connected to the side of the water guide channel 1 by bolts or welding. The two ends of the ventilation main pipe 5 are closed, and the bottom near the center is connected to the air outlet of the blower 4 through a pipe. The blower 4 can supply air into the ventilation main pipe 5 through the pipe connected to its air outlet. In order to send the air entering the ventilation main pipe 5 to the air drying head 6, the lower end of the ventilation branch pipe 61 is connected to the ventilation main pipe 5 and is interconnected. To facilitate the installation and removal of the ventilation branch pipe 61 from the ventilation main pipe 5, and to facilitate the air in the ventilation main pipe 5 to be sent into the ventilation branch pipe 61, please refer to the appendix of the instruction manual. Figure 3As shown, the outer side of the ventilation main pipe 5 is provided with air guide holes 52 in communication with the inside thereof, the air guide holes 52 are provided in parallel at equal intervals along the length direction of the ventilation main pipe 5, the outer side of the air guide hole 52 is fixedly welded with a plug-in end 51 with a "U" shaped structure, the inner wall surface of the plug-in end 51 is provided with a plug-in slot 511 with an opening at the top, the plug-in slot 511 is provided with a plug plate 62 inserted and matched thereinto from top to bottom, the plug plate 62 can be inserted into the plug-in slot 511 through the opening at the top of the plug-in slot 511, the plug plate 62 can be attached to the outer side of the air guide hole 52, the plug plate 62 is fixedly welded with the lower end of the ventilation branch pipe 61, the end surface of the plug plate 62 is provided with ventilation holes 621 in communication from front to back, the ventilation holes 621 are in communication with the ventilation branch pipe 61 and can correspond to the air guide hole 52 after the plug plate 62 is inserted into the plug-in end 51, the plug-in connection facilitates the installation and removal of the air drying head 6 on the ventilation main pipe 5, the number of air drying heads 6 on the ventilation main pipe 5 can be increased or decreased according to the requirement, the air drying effect is ensured, and the plug plate 62 is provided with a plug head inserted and matched with the air guide hole 52 on the plug-in end 51 without the air drying head 6, the plug head is a rubber head with good sealing performance, which has the same principle as the conventional hole plug head, therefore not shown; in order to facilitate the connection between the ventilation branch pipe 61 and the air box 63 and facilitate the angle rotation adjustment of the air box 63 relative to the ventilation branch pipe 61, please refer to the drawings Figure 6 to 8 As shown, the air box 63 is provided with a connection hole 635 in communication from inside to outside at the center of one end, the inside of the connection hole 635 is provided with a ring-shaped limiting main tooth 633 matched with the outer peripheral contour thereof, the limiting main tooth 633 is fixedly welded in the air box 63, and the outer end surface thereof is provided with a toothed surface along the circumference thereof; the connection hole 635 is provided with a limiting sleeve 65 inserted and matched thereinto, the limiting sleeve 65 is tightly sleeved on the outer part of the upper end of the ventilation branch pipe 61, in order to avoid the radial rotation displacement of the limiting sleeve 65 relative to the upper end of the ventilation branch pipe 61, please refer to the drawings Figure 9As shown, the inner wall surface of the limiting sleeve 65 is provided with an inner recessed limiting groove, the upper end of the ventilation branch pipe 61 is provided with a limiting protrusion 653 which is inserted and matched with the limiting groove, so as to ensure the stability of the radial position of the limiting sleeve 65 on the ventilation branch pipe 61; one end of the limiting sleeve 65 corresponding to the upper end of the ventilation branch pipe 61 is inserted and extended in the air bellow 63, and the part of the limiting sleeve 65 located in the air bellow 63 is provided with a limiting secondary tooth 652 which is correspondingly matched with the limiting primary tooth 633 and is tooth-shaped matched, one end of the limiting secondary tooth 652 corresponding to the limiting primary tooth 633 is provided with a ring-shaped limiting tooth which is tooth-shaped matched with the tooth-shaped surface of the end surface of the limiting primary tooth 633 and can be arbitrarily docked after angular rotation; the part of the limiting sleeve 65 located outside the air bellow 63 is provided with a limiting stop ring 651, the limiting stop ring 651 has a spacing with the air bellow 63, and the part of the limiting sleeve 65 between the limiting stop ring 651 and the air bellow 63 is externally sleeved with a spring 64, one end of the spring 64 abuts against the limiting stop ring 651, and the other end abuts against the outer end surface of the air bellow 63; in order to facilitate the disassembly and position adjustment of the limiting stop ring 651 and the limiting secondary tooth 652 on the limiting sleeve 65, please refer to the drawings in the specification Figure 8 As shown, the part of the limiting sleeve 65 close to the two ends is provided with an external thread, the limiting stop ring 651 is threadedly matched with the external thread at one end of the limiting sleeve 65, and the limiting secondary tooth 652 is threadedly matched with the external thread at the other end of the limiting sleeve 65, so as to facilitate the disassembly, the two groups of external threads on the limiting sleeve 65 are smooth surface structures, the smooth surface is slidably matched with the linking hole 635, and the air bellow 63 can move left and right on the smooth surface of the limiting sleeve 65 through the linking hole 635; in order to facilitate the adjustment of the limiting secondary tooth 652 located in the air bellow 63, please refer to the drawings in the specification Figure 6 and 7 As shown, the air bellow 63 is provided with a cover 631 which is tightly matched with the opening of the air bellow 63, and the cover 631 is fixedly connected with the air bellow 63 through the buckle 632, so as to facilitate the fixation and disassembly of the cover 631 on the air bellow 63 through the buckle 632; the air blower 4 sends air into the ventilation main pipe 5 through the air outlet thereof, the air in the ventilation main pipe 5 enters the air bellow 63 through the ventilation branch pipe 61 and is sent to the top surface of the water guide groove 1 through the air outlet 634 at the bottom of the air bellow 63.
[0032] The specific working principle is as follows: the air-drying head 6 is inserted into the insertion end 51 of the air duct 5 through the insertion plate 62 at the lower end of the air branch pipe 61, the air holes 621 on the insertion plate 62 correspond to and fit together with the air guide holes 52 at the insertion end 51; the air blower 4 is started, the air blower 4 sends air into the air duct 5 connected thereto through the air outlet thereof, the air in the air duct 5 enters the air branch pipe 61 through the air guide holes 52 and the corresponding air holes 621, and finally is discharged from the air outlet 634 at the bottom of the air box 63, since the air outlet 634 corresponds to the continuous body on the continuous body on the guide roller 3 in an up-down manner through the guide water channel 1, the air sent out from the air outlet 634 realizes air drying of the continuous body; in order to realize angle adjustment of the air outlet 634, the air box 63 is pushed towards the center of the limiting sleeve 65 without changing the position of the air branch pipe 61, the abutment surface of the limiting primary teeth 633 and the limiting secondary teeth 652 is separated, then the angle of the air box 63 is rotated as required, the air box 63 is slowly loosened after the required angle of the air outlet 634 is reached, at this time the spring 64 pushes the air box 63 to move outward, the limiting primary teeth 633 in the air box 63 and the limiting secondary teeth 652 on the limiting sleeve 65 are combined together again, the radial position of the air box 63 on the air branch pipe 61 is fixed through the limiting primary teeth 633 and the limiting secondary teeth 652, thereby realizing angle adjustment of the air outlet 634 at the bottom of the air box 63, the operation is convenient and flexible, the utilization rate of the air sent out from the air box is improved, the air drying time is saved, the power-on time of the air blower 4 is saved, and resources are saved.
[0033] The plastic extruder is additionally provided with the guide water channel 1 with an inclination, the guide water channel 1 is located directly below the air box 63 of the air-drying head 6, the top slot corresponds to the air outlet 634 at the bottom of the air box 63, the cooling water on the continuous body passing through the slot can be blown into the slot of the guide water channel 1 through the air-drying head 6, the cooling water blown from the continuous body is collected, the cooling water is not easy to be blown to the extruder and the auxiliary equipment thereof, and rusting of the equipment is avoided; in addition, the angle of the air box 63 on the air-drying head 6 can be flexibly adjusted, thereby realizing angle adjustment between the air outlet 634 at the bottom of the air box 63 and the top of the guide water channel 1, the blowing angle of the air outlet 634 to the continuous body passing through the guide water channel 1 can be flexibly adjusted, the air drying effect and efficiency of the continuous body are ensured, the situation that the air drying efficiency is not high and the air and electric resources are wasted is avoided, and the production cost is saved.
[0034] It should be emphasized that the above is only a preferred embodiment of the present application and is not used to limit the present application, for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A plastic extruder air dryer comprising a blower (4) and an air drying head (6) connected to the blower (4), characterized in that: Also include water guide groove (1), the water guide groove (1) is erected above the top of the blower (4) by the support (2) fixedly arranged at its bottom, the air-drying head (6) is composed of ventilation branch pipe (61) and movable connection windbox (63) on the upper end of ventilation branch pipe (61), the windbox (63) can rotate relative to the ventilation branch pipe (61), the top of the windbox (63) is opened, and the opening is provided with a sealing cover (631) matched with it, the sealing cover (631) is fixedly connected with the windbox (63) by the buckle (632), the bottom of the windbox (63) is provided with the air port (634) of internal and external communication along its length direction, the windbox (63) is suspended above the top of the water guide groove (1), and the air port (634) corresponds with the top of the water guide groove (1) up and down;The water guide groove (1) is provided with a plurality of guide rollers (3) in the slot of the top, which are arranged equidistantly along the length direction of the water guide groove (1);The water guide groove (1) is provided with a ventilation main pipe (5) fixedly connected with it along its length direction on one side, the ventilation main pipe (5) is communicated with the air outlet of the blower (4) through pipeline, the lower end of the ventilation branch pipe (61) is connected with the ventilation main pipe (5) and is communicated with each other, the blower (4) sends air to the ventilation main pipe (5) through its air outlet, the air in the ventilation main pipe (5) enters the windbox (63) through the ventilation branch pipe (61) and sends air to the top surface of the water guide groove (1) through the air port (634) at the bottom of the windbox (63).
2. A plastic extruder dryer according to claim 1, characterized in that: The ventilation branch pipe (61) is in the shape of "[", one end of the windbox (63) is provided with an internal and external communication connection hole (635), the inner side of the connection hole (635) is provided with a ring-shaped limit main tooth (633) matched with its outer contour;The limit sleeve (65) is arranged in the connection hole (635) and is matched with the insertion, the limit sleeve (65) is tightly sleeved on the outer part of the upper end of the ventilation branch pipe (61), one end of the limit sleeve (65) corresponding the end part of the upper end of the ventilation branch pipe (61) extends in the windbox (63), the outer part of the part of the limit sleeve (65) in the windbox (63) is provided with a limit secondary tooth (652) corresponding with the limit main tooth (633) and tooth-shaped matched;The outer part of the part of the limit sleeve (65) between the limit stop ring (651) and the windbox (63) is provided with a spring (64), one end of the spring (64) abuts against the limit stop ring (651), and the other end abuts against the outer end face of the windbox (63).
3. A plastic extruder dryer according to claim 2, characterised in that: The outer part of the limiting sleeve (65) is provided with external threads near both ends, and the space between the two sets of external threads is smooth, which is in sliding fit with the connecting hole (635); the limiting stop ring (651) is in threaded fit with the external threads at one end of the limiting sleeve (65), and the limiting auxiliary tooth (652) is in threaded fit with the external threads at the other end of the limiting sleeve (65).
4. A plastic extruder dryer according to claim 2, wherein: The inner wall surface of the limiting sleeve (65) is provided with an inner recessed limiting groove, and the upper end of the ventilation branch pipe (61) is externally provided with a limiting protrusion (653) in plug-in fit with the limiting groove.
5. A plastic extruder dryer according to claim 1, characterized in that: The outer side of the ventilation main pipe (5) is provided with a wind guide hole (52) in communication with the inside thereof, and the outer side of the wind guide hole (52) is fixedly welded with a plug-in end (51) in "U" shape in end surface, and the inner wall surface of the plug-in end (51) is provided with a plug-in groove (511) in which an insertion plate (62) in upper and lower plug-in fit is arranged, and the insertion plate (62) is fixedly welded with the lower end of the ventilation branch pipe (61) and is provided with a ventilation hole (621) in front and back communication in end surface, which is in communication with the ventilation branch pipe (61) and can correspond to the wind guide hole (52).
6. A plastic extruder dryer according to claim 1, characterized in that: The air drying heads (6) are provided in multiple, which are arranged in equal intervals along the length direction of the water guide groove (1).
7. A plastic extruder dryer according to claim 1, wherein: The water guide groove (1) is arranged in slope from high to low from front to back.
8. A plastic extruder dryer according to claim 1, characterized in that: The bottom of the air blower (4) is provided with a support (41).