KR200248469Y1 - the structure of a hopper machine to dry plastics - Google Patents

Abstract

The present invention relates to a structure of a hopper dryer for an injection molding machine which is heated by a blower fan and dried in a hopper for accommodating a molding material, and more specifically, a drawing hole for drawing out a molding material taken out in the hopper to the outside. The outlet is formed in the connection is connected to the inlet is connected to the inlet tube 'T', the upper end of the inlet tube has a predetermined inclination toward the bottom so that the bottom outlet of the drying holes formed a plurality of through holes are inserted, A blower is formed on the guide surface of the lower part of the drying sphere to be connected to the blower fan.

Therefore, the wind of the heated blower fan supplied to dry the moisture contained in the molding material contained in the hopper is supplied from the bottom to the top through a plurality of through-holes formed in the drying table, so that the molding material fed into the injection molding machine is completely dried. It provides a structure of a hopper dryer for an injection molding machine to be supplied in a state.

Description

Structure of a hopper machine to dry plastics}

The present invention relates to a structure of a hopper dryer for an injection molding machine (2) that is heated by a blower fan and dried in a hopper for accommodating a molding material, and in particular, is supplied to dry the moisture contained in the molding material contained in the hopper. For the injection molding machine (2), the wind of the heated blowing fan is supplied from the bottom to the top through a plurality of through holes formed in the drying table, so that the molding material introduced into the injection molding machine (2) can be supplied in a completely dried state. It relates to the structure of a hopper dryer.

In general, the hopper dryer (1) is used to smoothly supply a predetermined amount of the molding material in the injection molding machine (2) to the hopper dryer (1) completely removes the moisture remaining in the pre-drying molding material to the molding machine To supply

The hopper dryer (1) is to accommodate a predetermined amount of the molding raw material as described above, the raw material is injection molding machine (2) in the state that the moisture is contained in the injection molding machine (2) because the received raw material contains the remaining moisture ( When it is added to 2), bubbles are generated in the injection molded product, which does not make the appearance beautiful, and it becomes a defective product. Therefore, it is essential to remove moisture remaining in the raw material before input.

The structure of the conventional hopper dryer (1) is formed at the bottom of the hopper to remove the moisture remaining in the molding material accommodated in the hopper (3) is formed with a guide surface for guiding the raw material in the hopper (3) to the inlet opening and The bottom die 4 is installed, and the bottom die 4 is connected to the raw material transfer cylinder of the injection molding machine 2, and thus, an air vent (not shown) is formed on the side of the bottom die 4. The blower fan 7 is connected to dry the moisture contained in the received raw material while the warmed wind rises into the hopper 3 through the blower.

However, the above-mentioned conventional hopper dryer 1 is supplied with warm air from the bottom die 4, so that the drying efficiency is low because the raw material staying in the bottom die 4 is supplied to the cylinder even before it is dried. In addition, the heated wind rising from the bottom die 4 is not evenly supplied to the raw material in the hopper, the raw material containing a large amount of moisture or the raw material that is not in contact with the wind is supplied to the cylinder in the state of moisture intact and eventually The problem arises that the injection molded product is made into a defective product.

On the other hand, the injection molding machine (2) has to replace the raw material according to the molded article, conventionally formed in the inlet (6) in the bottom die 4 to take out the raw material contained in the hopper dryer (1), When the replacement time, the raw material received through the outlet in the state in which the opening and closing plate 5 of the top of the bottom die 4 is closed, as shown in Figure 1 the bottom die (the top of the injection molding machine 2) 4) is coupled, the connection space (not shown) connected to the outlet 6, the work space for drawing the raw material is very narrow, there was a problem that work is very cumbersome and inconvenient.

The present invention devised to solve the above problems, so that the heated wind supplied into the hopper can be evenly supplied to the raw material to be supplied to the cylinder in a good dry state, the work for connecting the connection pipe when the raw material replacement It provides the purpose of simplifying the connection work while expanding the space.

1 schematically shows the structure of a conventional injection molding machine 2 and a hopper dryer.

Figure 2 is an exploded perspective view showing the structure of the hopper dryer of the present invention.

Explanation of Drawings

101-hopper 102-outlet 103-filling tube

104-through 105-drying hole 106-outlet

107-Guiding 108-Train 109-Extrusion Jaw

110-fixture

The above object is, according to the present invention, in the structure of the hopper dryer for injection molding machine to be dried by heating and blowing with a blowing fan in the hopper 101 for receiving the molding material, the raw material contained in the hopper 101 An outlet 102 for drawing out to the outside is formed on the guide surface 107, but the outlet 102 is connected to the inlet tube 103 and the letter 'T' connected to the inside, the upper end of the inlet tube 103 The air outlet 108 is formed on the guide surface 107 below the drying port 105 to insert the lower outlet 106 of the drying opening 105 having a plurality of through holes 104 with a predetermined slope toward. It is achieved by the structure of the hopper dryer for injection molding machine characterized in that it is connected to the blowing fan.

In addition, the coupling tube inserted by inserting the protrusion jaw 109 of a predetermined size into the outer diameter surface of the outlet 102 protruding from the outside of the hopper 101 may be inserted at a time, and one end of the inserted coupling tube It is preferable to form the fixture 110 to fix the.

Hereinafter, the technique of the present invention will be described in FIG.

First, the outlet 102 and the input pipe 103 protruding into the guide surface 107 of the hopper 101 are connected to the letter 'T' as shown, and the upper end of the input pipe 103 Bars 105 formed with two through holes 104 are coupled to each other, and the drying holes 105 are formed to be reduced in a predetermined slope toward the lower side, and the discharge hole 106 at the lower end of the inlet tube 103 is formed. Inserted to the top.

When the drying sphere 105 is coupled to the inlet tube 103 as described above, the housing 101a of the hopper 101 is coupled to the tip of the guide surface 107.

Here, the outlet 102 is formed at a predetermined position of the guide surface 107 and the projection jaw 109 is formed on the outer circumferential surface of the outlet 102 protruding outward of the guide surface 107 to form a connection pipe (not shown). Is inserted into the outlet 102 to be engaged at a time.

When the raw material is put into the present invention hopper 101 dryer combined with the above structure, the raw material is loaded from the upper portion of the drying sphere 105, and blower fan (to remove the moisture remaining in the loaded molding material) If not, the heated wind is supplied to the guide surface 107 through the tuyere 108, the supplied wind is raised to the top, and warmed through a plurality of through holes 104 formed in the drying port 105 As the wind is raised, the moisture remaining in the raw material is dried evenly by supplying the raw material evenly.

On the other hand, when replacing the raw material in the hopper 101, after closing the opening and closing plate 5 shown in Figure 2 in the same manner as the conventional method, connecting the connection pipe to the outlet 102, the outlet 102 ) Is sufficiently spaced enough to connect the connecting pipe from the injection molding machine (2), and after performing the connecting pipe smoothly, the raw material in the hopper 101 may be withdrawn.

Here, the outlet 102 inside the guide surface 107 connected to the inlet tube 103 has a predetermined inclination toward the upper portion, so that the opening and closing plate 5 of the bottom die 4 is closed by load. The raw material supplied to the input pipe 103 is discharged to the outlet 102.

As described above, the present invention allows the heated wind to be evenly supplied to the molding material accommodated in the hopper, thereby increasing the drying efficiency and preventing air bubbles from being generated in the injection molded product. It is a very good design that can be easily separated from the molding machine so that the connection work of the connecting pipe and the withdrawal of raw materials can be made more conveniently and easily.

Claims (2)

In the structure of the hopper dryer for injection molding machine which is dried by heating and blowing with a blower fan to a hopper for receiving the molding material, A drawer for drawing out the molding material contained in the hopper to the outside is formed on the guide surface, but the inlet connected to the inside is connected to the input tube and the letter 'T', the upper end of the input tube has a predetermined slope toward the bottom The lower outlet of the drying sphere formed with two through holes are inserted, and the structure of the hopper dryer for injection molding machine, characterized in that to form a blower in the guide surface of the lower drying sphere to be connected to the blowing fan. The method of claim 1, It is characterized in that the fastening tube is formed so as to connect the insertion tube inserted into the outer diameter surface of the outlet port projecting to the outside of the hopper by inserting the insertion tube at one time, and to fix one end of the inserted tube. The structure of the hopper dryer for injection molding machine.