CN217318771U

CN217318771U - Desiccator for moulding plastics

Info

Publication number: CN217318771U
Application number: CN202123306509.3U
Authority: CN
Inventors: 何瑛; 刘小平; 崔吉福; 孙丹丹; 于杭玉
Original assignee: Qingdao Penghai Software Co ltd
Current assignee: Qingdao Penghai Software Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-08-30
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a dryer for injection molding, which has the technical scheme that the dryer comprises a drying tube, wherein the axis of the drying tube is obliquely arranged relative to the vertical direction; the feeding pipe is fixedly connected to the top of the drying pipe; the discharge pipe is fixedly connected to the bottom of the drying pipe; a stirring mechanism for stirring the raw material particles in the drying tube; and a drying mechanism for drying the raw material particles in the drying tube; the drying mechanism comprises an air inlet pipe which is fixedly connected to the bottom of the air inlet pipe and used for feeding hot air into the air inlet pipe; the heating box is fixedly connected to the bottom of the air inlet pipe; an electric heating rod for heating air introduced into the heating box; the air pump is used for sending air into the heating box; and an outlet duct; the raw material particles passing through the drying pipe are dried by the drying mechanism, so that the raw material particles are dried.

Description

Injection molding dryer

Technical Field

The utility model relates to a dry technical field of material of moulding plastics, more specifically the theory that says so, it relates to a desiccator for moulding plastics.

Background

When injection molding is carried out, raw material particles for injection molding are directly sent into an injection molding machine, heated and extruded by the injection molding machine, and then molded.

When injection molding is carried out, if the moisture absorbed in the raw materials for injection molding is more, the particles are easily adhered together to form blocks, so that a feed inlet of an injection molding machine is easily blocked, and the defects of bubbles or stripes in injection molding products are caused by more moisture.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a desiccator for moulding plastics, it is dried through the raw materials granule in drying tube to passing drying mechanism, has realized the drying to raw materials granule.

In order to achieve the above purpose, the utility model provides a following technical scheme: a drier for injection molding comprises a drying tube, the axis of which is arranged obliquely relative to the vertical direction;

the feeding pipe is fixedly connected to the top of the drying pipe and used for feeding raw material particles into the drying pipe;

the discharging pipe is fixedly connected to the bottom of the drying pipe and used for sending the dried raw material particles into an injection molding machine;

a stirring mechanism for stirring the raw material particles in the drying tube;

and a drying mechanism for drying the raw material particles in the drying tube;

the drying mechanism comprises an air inlet pipe which is fixedly connected to the bottom of the air inlet pipe and used for feeding hot air into the air inlet pipe;

the heating box is fixedly connected to the bottom of the air inlet pipe;

an electric heating rod for heating air introduced into the heating box;

the air pump is used for sending air into the heating box;

and the air outlet pipe is positioned right above the air inlet pipe and is fixedly connected to the top of the drying pipe.

By adopting the technical scheme, the raw material particles enter the drying tube through the feeding tube and slide downwards along the inclined direction of the drying tube under the action of the gravity of the raw material particles; the air pump sends outside air into the heating box, the electric heating rod in the heating box heats the air into hot air and then blows the hot air into the drying tube through the air inlet tube, and the hot air passes through gaps of the raw material particles in the drying tube, takes away moisture on the dried particles and is discharged through the air outlet tube; raw material particles in the drying tube are stirred by the stirring mechanism, so that the raw material particles can be separated from each other, and the drying uniformity is improved; when the dried raw material particles enter the extruder, the inlet of the extruder is not easy to be blocked, and the defects of air bubbles or stripes are not easy to appear in the injection molding product.

The utility model discloses further set up to: the drying mechanism is provided with a plurality of, and a plurality of drying mechanisms are evenly arranged along the axis direction of the drying tube.

The utility model discloses further set up to: the air inlet pipe and the air outlet pipe are both provided with round pipes with vertical axes, and the air inlet pipe and the air outlet pipe of the same drying mechanism are coaxially arranged.

The utility model discloses further set up to: the connecting parts of the air inlet pipe, the air outlet pipe and the drying pipe are provided with communicating holes penetrating through the wall of the drying pipe, and blocking nets fixedly connected to the wall of the hole are arranged in the communicating holes.

The utility model discloses further set up to: the heating box is a barrel coaxial with the air inlet pipe, and the electric heating rod is a spiral rod spirally arranged around the axis of the heating box.

The utility model discloses further set up to: the stirring mechanism comprises a stirring shaft which is arranged in the drying pipe and is coaxial with the drying pipe;

and the stirring rods are arranged in a plurality of positions and are fixedly connected to the outer side of the stirring shaft, and the length direction of the stirring rods is arranged along the radial direction of the stirring shaft.

The utility model discloses further set up to: the puddler is provided with the multiunit, and the multiunit puddler is arranged along (mixing) shaft axis direction, and each group is including a plurality of puddlers, and a plurality of puddlers evenly arrange around the axis of (mixing) shaft.

The utility model discloses further set up to: the one end that the (mixing) shaft is close to the discharging pipe stretches out from the discharging pipe in the middle of, fixedly connected with one and (mixing) shaft vertically fixed plate on the discharging pipe, and the (mixing) shaft rotates to be connected on the fixed plate, and fixedly connected with is used for driving the (mixing) shaft and carries out the pivoted motor on the fixed plate.

To sum up, the utility model discloses compare and have following beneficial effect in prior art: the utility model discloses a drying mechanism carries out the drying to the raw materials granule that passes in the drying tube, has realized the drying to raw materials granule.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

fig. 2 is a sectional view of a drying mechanism and a drying duct of the embodiment;

FIG. 3 is a schematic view of an agitating shaft and an agitating shaft of the embodiment.

In the figure: 1. a drying tube; 11. a communicating hole; 12. a barrier net; 2. a feed pipe; 3. a discharge pipe; 31. a fixing plate; 4. a drying mechanism; 41. an air inlet pipe; 42. an air outlet pipe; 43. a heating box; 44. an air pump; 45. an electrical heating rod; 5. a stirring mechanism; 51. a stirring shaft; 52. a stirring rod.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following description, together with the drawings of the present invention, clearly and completely describes the technical solution of the present invention, and based on the embodiments in the present application, other similar embodiments obtained by those skilled in the art without creative efforts shall all belong to the protection scope of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms are used for illustrating the present invention and not for limiting the present invention.

The present invention will be further described with reference to the accompanying drawings and preferred embodiments.

Example (b): a kind of injection molding uses the dryer, refer to fig. 1, fig. 2 and fig. 3, including the axis is relative to the drying tube 1 that the vertical direction is set up obliquely, fixedly connect to the feed pipe 2 used for sending into raw material granule in the drying tube 1 of one end of top of the drying tube 1, fixedly connect to the discharge pipe 3 used for sending into the injection molding machine after drying raw material granule of one end of bottom of the drying tube 1, set up in the drying tube 1 in order to stir the raw material granule in the drying tube 1 in the stirring mechanism 5 and drying mechanism 4 used for drying raw material granule in the drying tube 1; specifically, the drying mechanism 4 includes an air inlet pipe 41, a heating box 43 fixedly connected to the bottom of the air inlet pipe 41, an electric heating rod 45 fixedly connected to the heating box 43, an air pump 44 fixedly connected to the bottom of the heating box 43, and an air outlet pipe 42 arranged above the air inlet pipe 41; the air inlet pipe 41 and the air outlet pipe 42 are respectively positioned at the top and the bottom of the drying duct 1, and the air inlet pipe 41 and the air outlet pipe 42 are communicated with the drying duct 1.

Raw material particles enter the drying tube 1 through the feeding tube 2 and slide downwards along the inclined direction of the drying tube 1 under the action of the gravity of the raw material particles; the air pump 44 sends outside air into the heating box 43, the electric heating rod 45 in the heating box 43 heats the air to hot air and then blows the hot air into the drying tube 1 through the air inlet pipe 41, the hot air passes through the gaps of the raw material particles in the drying tube 1, takes away the moisture on the dried particles and is discharged through the air outlet pipe 42; raw material particles in the drying tube 1 are stirred by the stirring mechanism 5, so that the raw material particles can be separated from each other, and the drying uniformity is improved.

Specifically, a plurality of drying mechanisms 4 are arranged, and the plurality of drying mechanisms 4 are uniformly arranged along the axial direction of the drying tube 1; by arranging the plurality of drying mechanisms 4, raw material particles can be dried by the plurality of drying mechanisms 4 in the process of sliding downwards along the inclined direction of the drying tube 1, so that the drying effect is improved; the quantity of the opened drying mechanisms 4 can be controlled according to the moisture content of the raw material particles, so that the moisture content of the raw material particles entering the extruder can be controlled.

The air inlet pipe 41 and the air outlet pipe 42 are both provided with round pipes with vertical axes, and the air inlet pipe 41 and the air outlet pipe 42 of the same drying mechanism 4 are coaxially arranged; the connection parts of the air inlet pipe 41 and the air outlet pipe 42 and the drying pipe 1 are provided with communication holes 11 penetrating through the pipe wall of the drying pipe 1, and blocking nets 12 fixedly connected to the hole wall are arranged in the communication holes 11. By providing the blocking net 12, it is possible to prevent the raw material particles from entering the inlet duct 41 and the outlet duct 42 without obstructing the air from entering the drying duct 1 from the inlet duct 41 and then entering the outlet duct 42.

Specifically, the heating box 43 is a cylindrical barrel coaxial with the air inlet pipe 41, and the electric heating rod 45 is a screw rod spirally disposed around the axis of the heating box 43. Set up electrical heating rod 45 into the hob, can increase the contact surface of electrical heating rod 45 and air and connect, improve the heating efficiency to the air.

Specifically, the stirring mechanism 5 includes a stirring shaft 51 disposed in the drying tube 1 and coaxial with the drying tube 1, and a plurality of stirring rods 52 fixedly connected to the outside of the stirring shaft 51; specifically, the length direction of puddler 52 sets up along the (mixing) shaft 51 radial direction, and puddler 52 is provided with the multiunit, and multiunit puddler 52 is arranged along (mixing) shaft 51 axial direction, and each group includes a plurality of puddlers 52, and a plurality of puddlers 52 evenly arrange around (mixing) shaft 51's axis.

Specifically, one end of the stirring shaft 51 close to the discharge pipe 3 extends out of the discharge pipe 3, a fixing plate 31 perpendicular to the stirring shaft 51 is fixedly connected to the discharge pipe 3, the stirring shaft 51 is rotatably connected to the fixing plate 31, and a motor for driving the stirring shaft 51 to rotate is fixedly connected to the fixing plate 31.

The working principle of the injection molding dryer during use is as follows: raw material particles enter the drying tube 1 through the feeding tube 2 and slide downwards along the inclined direction of the drying tube 1 under the action of the gravity of the raw material particles; an air pump 44 sends outside air into the heating box 43, an electric heating rod 45 in the heating box 43 heats the air to hot air and then blows the hot air into the drying tube 1 through an air inlet pipe 41, the hot air passes through gaps of raw material particles in the drying tube 1, takes away moisture on the dried particles and is discharged through an air outlet pipe 42; raw material particles in the drying tube 1 are stirred by the stirring mechanism 5, so that the raw material particles can be separated from each other, and the drying uniformity is improved.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the fan belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a desiccator for moulding plastics which characterized in that: comprises a drying pipe (1), the axis of which is arranged obliquely relative to the vertical direction;

the feeding pipe (2) is fixedly connected to the top of the drying pipe (1) and used for feeding raw material particles into the drying pipe (1);

the discharge pipe (3) is fixedly connected to the bottom of the drying pipe (1) and is used for feeding dried raw material particles into an injection molding machine;

a stirring mechanism (5) for stirring the raw material particles in the drying tube (1);

and a drying mechanism (4) for drying the raw material particles in the drying tube (1);

the drying mechanism (4) comprises an air inlet pipe (41), which is fixedly connected to the bottom of the air inlet pipe (41) and used for feeding hot air into the air inlet pipe (41);

the heating box (43) is fixedly connected to the bottom of the air inlet pipe (41);

an electric heating rod (45) for heating air introduced into the heating box (43);

an air pump (44) for sending air into the heating box (43);

and the air outlet pipe (42) is positioned right above the air inlet pipe (41) and is fixedly connected to the top of the drying pipe (1).

2. The injection molding dryer according to claim 1, wherein: the drying mechanism (4) is provided with a plurality of drying mechanisms (4), and the plurality of drying mechanisms (4) are uniformly distributed along the axis direction of the drying pipe (1).

3. The injection molding dryer according to claim 2, wherein: the air inlet pipe (41) and the air outlet pipe (42) are both provided with round pipes with vertical axes, and the air inlet pipe (41) and the air outlet pipe (42) of the same drying mechanism (4) are coaxially arranged.

4. The injection molding dryer according to claim 3, wherein: the connection parts of the air inlet pipe (41) and the air outlet pipe (42) and the drying pipe (1) are provided with communicating holes (11) penetrating through the pipe wall of the drying pipe (1), and blocking nets (12) fixedly connected to the hole wall are arranged in the communicating holes (11).

5. The injection molding dryer according to claim 4, wherein: the heating box (43) is a barrel coaxial with the air inlet pipe (41), and the electric heating rod (45) is a spiral rod spirally arranged around the axis of the heating box (43).

6. The injection molding dryer according to claim 5, wherein: the stirring mechanism (5) comprises a stirring shaft (51) which is arranged in the drying pipe (1) and is coaxial with the drying pipe (1);

and a plurality of stirring rods (52) which are fixedly connected to the outer side of the stirring shaft (51), wherein the length direction of the stirring rods (52) is arranged along the radial direction of the stirring shaft (51).

7. The injection molding dryer according to claim 6, wherein: the stirring rod (52) is provided with the multiunit, and multiunit stirring rod (52) are arranged along (mixing) shaft (51) axis direction, and each group includes a plurality of stirring rod (52), and a plurality of stirring rod (52) evenly arrange around the axis of (mixing) shaft (51).

8. The injection molding dryer according to claim 7, wherein: one end of the stirring shaft (51) close to the discharging pipe (3) extends out of the discharging pipe (3), a fixing plate (31) vertical to the stirring shaft (51) is fixedly connected to the discharging pipe (3), the stirring shaft (51) is rotatably connected to the fixing plate (31), and a motor for driving the stirring shaft (51) to rotate is fixedly connected to the fixing plate (31).