CN218034135U

CN218034135U - Plastic dehumidification drying device

Info

Publication number: CN218034135U
Application number: CN202221677802.2U
Authority: CN
Inventors: 徐亚华; 徐国栋
Original assignee: Yancheng Shenghua Plastic Technology Co ltd
Current assignee: Yancheng Shenghua Plastic Technology Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-12-13
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses a plastic dehumidification drying device, which comprises a frame, a roller, a driving mechanism and a drying mechanism, wherein the roller is horizontally arranged on the frame through a rotating shaft, the driving mechanism is fixedly connected with the rotating shaft, the rotating shaft is of a hollow structure, one end of the rotating shaft is connected with the drying mechanism, the other end of the rotating shaft is sealed, and a plurality of air blowing holes are formed in the middle section of the rotating shaft; the roller is a cylindrical shell, a feed inlet is formed in the roller, and a cover plate is arranged at the feed inlet; the wall of the roller is provided with air outlets which are arranged along the axial direction of the roller, the air outlets are evenly distributed along the circumference of the roller, and the air outlets are provided with filter screens. The air outlet is formed in the roller, and the hollow hole matched with the air outlet is formed in the outer barrel, so that when the hollow hole and the air outlet are staggered, hot air in the roller can be prevented from overflowing, and the heating efficiency of plastic particles in the roller is improved; when the hollow holes coincide with the air outlets, the air discharge of the roller is increased, the discharge of moisture in the roller is accelerated, and the drying effect of the plastic particles is ensured.

Description

Plastic dehumidification drying device

Technical Field

The utility model relates to a plastic production facility technical field especially relates to a plastic dehumidification drying device.

Background

The plastic particles are the raw material for storing, transporting and processing the plastic in the form of semi-finished products. The plastic particles can absorb water vapor in the air during production and storage, so that the water vapor becomes damp, the transparency and color purity of a final product are influenced, and the bending resistance and torsion resistance of the product, and the elasticity, tension index and yield of the product are reduced. Therefore, the plastic pellets need to be dried before they are fed to an injection molding machine, extruder, blister machine or other plastic processing machine.

However, in the process of implementing the technical solution of the present invention in the embodiments of the present application, the inventor of the present application finds that the above-mentioned technology has at least the following problems:

when the existing plastic dehumidification drying device is used, moisture in the device is not easy to be fully discharged, and the moisture is easy to adsorb to plastic particles again after drying is completed, so that the dehumidification effect of the plastic particles is reduced, and the quality of products is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a plastic dehumidification drying device to solve the technical problem who mentions in the background art, the utility model discloses a purpose is realized through following technical scheme:

a plastic dehumidification drying device comprises a rack, a roller, a driving mechanism and a drying mechanism, wherein the roller is rotatably mounted on the rack through a rotating shaft, the rotating shaft is horizontally arranged, the driving mechanism is fixedly connected with the rotating shaft, the rotating shaft is of a hollow structure, one end of the rotating shaft is connected with the drying mechanism, the other end of the rotating shaft is hermetically arranged, and a plurality of air blowing holes are uniformly formed in the middle section of the rotating shaft; the roller is a cylindrical hollow shell, a feed inlet is formed in the roller, and a cover plate is arranged at the feed inlet; the wall of the roller is provided with air outlets which are arranged along the axial direction of the roller, the air outlets are evenly distributed along the circumference of the roller at intervals, and the air outlets are provided with filter screens.

Further, the roller sleeve is provided with an outer cylinder, the outer cylinder can rotate around the roller, and the outer cylinder is provided with a hollow hole matched with the air exhaust port.

Furthermore, one side of the roller is provided with a first convex edge, and an elastic bolt is arranged on the first convex edge; one side of the outer barrel is provided with a second convex edge, two positioning holes are formed in the second convex edge, and the positioning holes are matched with the elastic bolts.

Furthermore, the driving mechanism comprises a driving motor, a first belt pulley, a second belt pulley and a belt, the first belt pulley is connected with an output shaft of the driving motor, the second belt pulley is connected with the rotating shaft, and the belt is sleeved between the first belt pulley and the second belt pulley.

Further, the drying mechanism is a hot air blower.

Furthermore, the inner wall of the roller is provided with fillets which are arranged along the axial direction of the roller.

The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages:

1. hot air is introduced into the roller through the hollow rotating shaft, and the plastic particles are thrown by the fillets when the roller rotates, so that the plastic particles are quickly and uniformly heated, and the desorption efficiency of water vapor on the plastic particles is improved;

2. the air outlet is formed in the roller, and the hollow hole matched with the air outlet is formed in the outer barrel, so that when the hollow hole and the air outlet are staggered, hot air in the roller can be prevented from overflowing, and the heating efficiency of plastic particles in the roller is improved; when the hollowed-out hole coincides with the air outlet, the air exhaust of the roller is increased, the discharge of moisture in the roller is accelerated, and the drying effect of the plastic particles is ensured.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a cross-sectional view of an embodiment of the present application;

FIG. 3 is a schematic view of a drum structure according to an embodiment of the present application;

FIG. 4 is a schematic view of the structure of the outer barrel in the embodiment of the present application;

FIG. 5 is a schematic view illustrating a state of the hollow-out hole and the exhaust port being staggered according to an embodiment of the present application;

fig. 6 is a schematic view illustrating a state of coincidence of the hollow hole and the air vent according to the embodiment of the present application.

In the drawings, there is shown: 1. a frame; 11. a bearing seat; 2. a drum; 21. a frame; 22. a cylinder wall; 221. an exhaust port; 23. a side plate; 3. a rotating shaft; 4. an outer cylinder; 41. avoidance positions; 42. hollowing out holes; 43. a second flange; 431. positioning holes; 5. a drive mechanism; 51. a drive motor; 52. a first pulley; 53. a belt; 54. a second pulley.

Detailed Description

For better understanding of the above technical solutions, the following detailed descriptions will be made with reference to the accompanying drawings and the detailed description, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

The plastic dehumidifying and drying device shown in fig. 1 and 2 comprises a frame 1, a drum 2, a rotating shaft 3, an outer cylinder 4, a driving mechanism 5 and a hot air blower (not shown).

The frame 1 is two type of falling T supports that the shaped steel welding formed, and two supports symmetry set up, and the lower extreme of support passes through expansion bolts to be fixed subaerial, and the bearing frame 11 is installed respectively through the bolt in the top of support. As shown in fig. 2, the rotating shaft 3 is horizontally installed between two brackets, two ends of the rotating shaft 3 respectively pass through bearings in the bearing seats 11, and the drum 2 is coaxially fixed outside the rotating shaft 3, so that the drum 2 can rotate around the rotating shaft 3. The rotating shaft 3 is of a hollow structure, an opening is formed in the left end of the rotating shaft 3, a plurality of air blowing holes are uniformly formed in the middle section of the rotating shaft 3, and the diameter of each air blowing hole is smaller than the particle size of the plastic particles so as to prevent the plastic particles from blocking the air blowing holes; the right-hand member of pivot 3 is the sealed end, and the left end of pivot 3 is passed through the gas slip ring and is connected with the air heater, and the air heater is blown hot-air in to pivot 3 through the opening of 3 left ends of pivot to in getting into cylinder 2 from the gas hole in the middle part of 3 pivots, realize the heating dehydration to the inside plastic particle of cylinder 2.

As shown in fig. 1 and 2, the drive mechanism 5 includes a drive motor 51, a first pulley 52, a belt 53, and a second pulley 54. The driving motor 51 is fixed at the lower end of the frame 1 through a bolt, and the first belt pulley 52 is fixedly arranged on the output shaft of the driving motor 51; the second belt pulley 54 is fixedly installed at the right end of the rotating shaft 3, the belt 53 is wound between the first belt pulley 52 and the second belt pulley 54 and is in a tensioning state, and the driving motor 51 drives the rotating shaft 3 to rotate through the belt, so that the rotation of the drum 2 is realized. Preferably, the driving motor 51 is a speed-adjustable motor and is provided with a contracting brake mechanism with power-off self-locking function.

As shown in fig. 3, the drum 2 is a cylindrical hollow casing, and includes a frame 21, a drum wall 22, and circular side plates 23 installed at both sides of the drum wall. The frame 21 is a cylindrical structure formed by welding square pipes, and the frame 21 is coaxially welded and fixed on the rotating shaft 3. The cylinder wall 22 is welded and fixed on the arc-shaped surface of the frame 21, the two circular side plates 23 are respectively welded and fixed on two planes of the frame 21, the outer edges of the side plates 23 protrude out of the outer diameter of the cylinder wall 22 to form a first convex edge, the first convex edge is provided with a through hole, and an elastic bolt (not shown) is installed in the through hole. The frame 21 set up on the one hand can strengthen the joint strength of cylinder 2 and pivot 3, also can improve the drive height of plastic particle when cylinder 2 is rotatory simultaneously, improves the homogeneity of the heating of plastic particle.

As shown in fig. 1, a feeding hole is opened on the cylinder wall 22, a cover plate 21 is installed at the feeding hole through a hinge, a lock catch (not shown) is installed at one end of the cover plate 21 away from the hinge, and when the drum 2 rotates, the cover plate 21 is tightly closed through the lock catch, thereby preventing plastic particles from spilling out. The cylinder wall 22 is provided with a plurality of exhaust ports 221 arranged along the axial direction of the roller 2, and the exhaust ports 221 are evenly distributed along the circumference of the roller 2 at intervals. Preferably, the exhaust ports 221 are provided with exhaust holes in an array, and the aperture of the exhaust holes is smaller than the particle size of the plastic particles, so as to prevent the plastic particles from overflowing.

As shown in fig. 1 and 4, an outer cylinder 4 is fitted to the outside of the drum 2 at an interval, and the outer cylinder 4 is relatively rotatable around the drum 2. The outer cylinder 4 is provided with an avoiding position 41 matched with the feed inlet and a hollow hole 42 matched with the exhaust port 221. One side of the outer cylinder is fixedly welded with a second convex edge 43, the second convex edge 43 is provided with two positioning holes 431, and the positions of the positioning holes 431 are matched with the positions of the elastic bolts. When the elastic bolt is inserted into one of the positioning holes 431, the hollow hole 42 completely coincides with the air outlet 221, and when the elastic bolt is inserted into the other positioning hole 431, the hollow hole 42 completely staggers with the air outlet 221.

The utility model discloses a theory of operation does:

firstly, rotating a feed inlet of a roller to the upper side, adding plastic particles into the roller, and closing a cover plate; because driving motor has outage band-type brake mechanism to can avoid the in-process cylinder of feeding to take place to rotate and lead to the plastic particle to spill.

Then, adjusting the outer cylinder to enable the hollowed-out holes and the exhaust port to be completely staggered, locking the hollowed-out holes through an elastic bolt, and starting a driving motor and a hot air blower; at the moment, because the air outlet is blocked, the heat in the roller is not easy to dissipate, the plastic particles can be rapidly heated, and the water vapor on the plastic particles is evaporated.

Then, stopping the machine, adjusting the outer cylinder to enable the hollow hole to be completely coincided with the exhaust port, and starting the driving motor and the hot air blower; at this moment, because the exhaust port is communicated, moisture and dust in the roller are discharged from the exhaust port, so that the moisture discharging efficiency is improved, and the dehumidifying and drying effects of the plastic particles are ensured.

And finally, opening the cover plate at the lower side of the rotating feed inlet of the roller to discharge the plastic particles.

The technical scheme in the embodiment of the application at least has the following technical effects or advantages:

2. the air outlet is formed in the roller, and the hollow hole matched with the air outlet is formed in the outer barrel, so that when the hollow hole and the air outlet are staggered, hot air in the roller can be prevented from overflowing, and the heating efficiency of plastic particles in the roller is improved; when the hollow holes coincide with the air outlets, the air discharge of the roller is increased, the discharge of moisture in the roller is accelerated, and the drying effect of the plastic particles is ensured.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a plastic dehumidification drying device, includes frame, cylinder, actuating mechanism and drying mechanism, the cylinder rotates through the pivot to be installed in the frame, the pivot level sets up, actuating mechanism with pivot fixed connection, its characterized in that:

the rotating shaft is of a hollow structure, one end of the rotating shaft is connected with the drying mechanism, the other end of the rotating shaft is arranged in a sealing manner, and a plurality of air blowing holes are uniformly formed in the middle section of the rotating shaft;

the roller is a cylindrical hollow shell, a feed port is formed in the roller, and a cover plate is arranged at the feed port; the drum wall of the drum is provided with a plurality of air outlets which are axially arranged along the drum, the air outlets are uniformly distributed at intervals along the circumference of the drum, and a filter screen is arranged at the air outlet.

2. The plastic dehumidifying and drying device as claimed in claim 1, wherein an outer cylinder is sleeved outside the drum and is rotatable around the drum, and a hollow hole is formed in the outer cylinder and is matched with the air outlet.

3. The plastic dehumidifying and drying device as claimed in claim 2, wherein a first flange is provided on one side of the drum, and an elastic bolt is mounted on the first flange; and a second convex edge is arranged on one side of the outer barrel, two positioning holes are formed in the second convex edge, and the positioning holes are matched with the elastic bolts.

4. The plastic dehumidifying and drying device as claimed in claim 1, wherein the driving mechanism comprises a driving motor, a first pulley, a second pulley and a belt, the first pulley is connected to an output shaft of the driving motor, the second pulley is connected to the rotating shaft, and the belt is disposed between the first pulley and the second pulley.

5. The plastic dehumidifying and drying device as claimed in claim 1, wherein the drying mechanism is a hot air blower.

6. The plastic cement dehumidifying and drying device as claimed in claim 1, wherein ribs are mounted on an inner wall of the drum, and the ribs are arranged along an axial direction of the drum.