KR100550968B1 - A peletizer - Google Patents

Abstract

The present invention relates to a pelletizer for cutting a resin material into pellets of a certain type, and more particularly, the lower roller shaft and the gear shaft are coupled to the universal joint, and the lower roller shaft and the guide by providing a gap adjusting portion at both ends of the lower roller shaft. It enables the shaft movement to adjust the gap between the plates to prevent the conveyed resin material from winding or tangling.The support holder combined with the fixed blade is fixedly spaced from the housing with bolts so that the support holder is horizontal as the bolt is rotated. The present invention relates to a pelletizer capable of adjusting the gap between the fixed blade and the cutter blade by moving, thereby eliminating the need for cutter blade replacement by wear due to prolonged use of the cutter blade.

Pelletizer, lower roller, guide plate, rotary cutter.

Description

Pelletizer {A Peletizer}

1 is a configuration of the lower roller and the rotary cutter of the conventional pelletizer.

Figure 2 is a block diagram of the lower roller and the rotary cutter of the pelletizer according to the present invention.

Figure 3 is a view showing a transport configuration of the guide plate and the lower roller shaft of the pelletizer according to the present invention.

Figure 4 is a partial perspective view showing the coupling of the lower roller shaft and the gap adjusting portion of the pelletizer according to the present invention.

5 is an exploded perspective view showing a state in which the transfer bar and the support and the support tube are coupled.

<Explanation of symbols for the main parts of the drawings>

10: lower roller 11: lower roller shaft

12: bearing housing 13: universal joint

20: upper roller 30: rotary cutter

31: cutter blade 32: rotary cutter shaft

33: coupler 40: guide plate

41: fixed blade 42: support holder

43: side plate 44: first gap adjusting portion

50: second gap adjusting portion 51: support plate

52: transfer bar 52a: stove groove

53 support body 54 support body

60: power transmission unit 61: first gear

63: second gear 65: first gear shaft

67: second gear shaft

The present invention relates to a pelletizer for cutting a resin material into pellets of a certain type, and more particularly, by coupling a lower roller that rotates in conjunction with a rotary cutter to a gearbox through a universal joint, the lower roller moves in a certain range. The present invention relates to a pelletizer which enables the resin material to be transported to be prevented from being wound or entangled by a gap between the lower roller and the guide plate by precisely adjusting the gap between the lower roller and the guide plate.

In general, petrochemical companies produce resin materials for processing materials in other fields. These resin materials are generally used as packaging and processing materials, and are conveniently cut into pellets of a certain size using a cutter knife.

1 is a configuration diagram of a lower roller and a rotary cutter of a conventional pelletizer.

Referring to the drawings, the pelletizer for cutting the resin material in the form of a conventional pellet is the resin material is transported inward by the combined rotation of the upper roller (not shown) and the lower roller (1) is coupled to the pelletizer housing is fixed Guide plate (2) is guided to the rotary cutter (3) side is cut to a certain size.

Here, the rotary cutter 3 has a cylindrical shape and a cutter blade 3a is formed on the outer edge thereof to cut the resin material, and the cutter blade 3a of the rotary cutter 3 is formed at the end of the guide plate 2. When cutting the resin while maintaining a constant interval, the fixed blade (2a) is formed to serve as a buffer of the cutter blade (3a) to cut the resin to the correct size.

The size of the pellet can be adjusted by controlling the rotational speed of the rotary cutter shaft (3b), one end of the rotary cutter shaft (3b) is rotated by a pulley coupled to the motor (M), the other end is coupled to the gear And the teeth are coupled to the gear coupled to the lower roller shaft (1a) to transmit the rotational force of the cutter shaft.

The rotary cutter blade is formed to be inclined at a predetermined angle in the horizontal direction, so that one side of the resin material is gradually cut to the other side as the cutting starting point rotates, and the crack is caused by the impact of absorbing and dispersing the impact when cutting the resin material. Or breakage can be prevented.

However, when the cutter blade is used for a long time, the edge of the cutter blade is worn out and the gap between the guide plate and the cutter blade is increased, which leads to incomplete pellet cutting, and the cutter blade has to be replaced.

At present, the guide plate 2 coupled with the fixed blade 2a can be horizontally moved to solve this problem, so that when the cutter blade is worn over a certain amount, the guide plate 2 is worn in the direction of the cutter blade. It may be moved and used.

However, in this case, when the fixed blade is moved in the direction of the rotary blade in order to adjust the gap between the fixed blade and the rotary blade according to the wear of the rotary blade, the gap between the lower roller and the guide plate is spread and the resin material is transferred between the lower roller and the guide plate. There is a problem that the phenomenon is caused by winding or tangling in the gap.

The present invention has been made to solve the above problems, an object of the present invention is the lower roller shaft and the gear shaft is a universal joint coupling, the gap between the lower roller shaft is installed on both ends of the lower roller and the guide plate precisely By adjusting, the resin material to be transported can be prevented from being wound or entangled.

The present invention has the following features to achieve the above object.

The present invention is a cutter cutter is formed on the outer periphery and the rotary cutter for cutting the cutting workpiece by rotation, coupled with the rotary shaft of the rotary cutter through a coupler, the power transmission unit for transmitting the rotational force, universal axis to enable the front and rear axis movement of the rotary shaft A lower roller which is coupled to the power transmission unit through a joint and receives rotational force through the power transmission unit to rotate together with the rotary cutter, an upper roller positioned above the lower roller, and a forward and backward movement between the rotary cutter and the lower roller. A guide plate and guide holder for guiding the cutting workpiece drawn by the upper and lower rollers to the rotary cutter side and attached to one side of the lower roller are attached to the upper and lower rollers to move the support holder forward and backward. To adjust the gap between the lower roller and the guide plate It is configured to include a gap adjusting.

The gap adjusting part is coupled to both sides of the housing so that the lower roller shaft end is supported to form a predetermined support space, a transfer bar for transferring the lower roller shaft to move horizontally toward the guide plate, and the transfer bar is screwed through the support plate It is preferable that it comprises a support tube which is coupled to and accommodated in the inner edge of the support to guide the reciprocating movement of the transfer bar.

In addition, it is more preferable that a stove groove is formed at one end of the transfer bar to facilitate rotation.

In addition, the power transmission unit is more preferably a gear box.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a configuration of the lower roller and the rotary cutter of the pelletizer according to the present invention.

Referring to FIG. 2, the pelletizer according to the present invention transmits the rotary force of the rotary cutter 30 and the rotary cutter 30 to the lower roller 10 by cutting the object by rotating by the motor M and the pulley coupling. The upper roller 20 and the rotary cutter 30 engaged with the lower roller 10 and the lower roller 10 which rotate by the rotational force transmitted from the power transmission unit 60 and the power transmission unit 60 to draw the object to be processed. ), The lower roller 10 is configured to include a coupler 33 and a universal joint 13 for coupling to the power transmission unit 60, respectively.

The rotary cutter 30 is provided to cut the cutting workpiece is formed by cutting the cutter blade 31 is formed on the outer edge, wherein the cutter blade 31 is formed to be inclined at a predetermined angle in the horizontal direction to the cutting starting point to one side It is configured to gradually cut to the other side according to the rotation, it is possible to prevent the cracks or breaks due to the impact in accordance with the shock absorption and dispersion during cutting of the cutting workpiece.

The power transmission unit 60 is for transmitting the rotational force of the rotary cutter 30 to the lower roller 10, it is preferable to use a gear box. In the case of using a gearbox, the power transmission unit 60 is connected to the first gear shaft 65 and the first gear shaft to be coupled to the rotary cutter shaft 32 via the coupler 33, and the first gear 61 to rotate. ), The second gear 63 and one end engaged with the first gear 61 and one end are coupled to the second gear 63, and the other end is coupled to the lower roller shaft 11 through the universal joint 13 so as to generate rotational force. It consists of a second gear shaft (67) for transmitting to the lower roller (10).

Both ends of the lower roller shaft 11 are coupled to the bearing housing 12, and one side of the bearing housing 12 on both sides is provided with a gap adjusting unit 50 for moving the lower roller 10 forward and backward.

Since the lower roller 10 is coupled to the power transmission unit 60 through the universal joint 13, the lower roller shaft 11 is able to move the shaft within a predetermined range, so that the lower roller (through the interval adjusting unit 50) 10) by advancing back and forth to adjust the interval with the guide plate 40 to be described later.

Figure 3 is a view showing the transport configuration of the guide plate and the lower roller shaft of the pelletizer according to the present invention.

Referring to FIG. 3, a guide plate 40 and a cutter for guiding the cut workpiece drawn by the upper and lower rollers 10 and 20 to the rotary cutter 30 between the lower roller 10 and the rotary cutter 30. The support holder 42 is positioned at a point corresponding to the blade 31 and is attached to the upper surface of the fixed blade 41 serving as a cutting support, and the support holder 42 is moved forward and backward on one side of the support holder 42. The first interval adjusting portion 44 for moving is installed.

If the cutter blade 31 is worn out by using the rotary cutter 30 for a long time, and the cutting work becomes difficult, the support holder 42 is horizontally moved by rotating the screw thread or the bolt 44 to fix the blade 41 and the cutter blade. The interval of (31) is readjusted.

The support holder 42 is spaced apart from one side of the housing and is coupled and supported by a plurality of screw rods or bolts 44, but is integrally coupled with the screw rods or bolts so as to be horizontally moved according to the rotation of the screw rods or bolts 44.

In addition, it is preferable that side plates 43 are coupled to both side surfaces of the guide plate 40 to prevent the cutting workpiece transferred to the inside from being transferred to the outside of the guide plate 40.

Figure 4 is a partial perspective view showing the coupling of the lower roller shaft and the spacing control portion of the pelletizer according to the present invention, Figure 5 is an exploded perspective view showing the coupling of the transfer bar and the support and the support body.

If the gap between the cutter blade 31 and the fixed blade 41 is re-adjusted, the gap between the lower roller 10 and the guide plate 40 is widened, causing a problem of winding or entangled in the gap where the workpiece is inserted.

In order to solve this problem, in the present invention, the lower roller 10 is moved toward the guide plate 40 by using the gap adjusting unit 50 to adjust the gap with the guide plate 40 to wind up or tangle the object to be processed. Will be prevented.

4 and 5, the gap adjusting unit 50 is coupled to one side of the housing to support both bearing housings 12 of the lower roller 10 and the support plate 51 to form a predetermined support space, bearings Transfer bar 52 for transporting the housing 12 to move horizontally toward the guide plate 40, and the transfer bar 52 is screwed through the coupling bar 52 is coupled to the support plate 51 to reciprocate movement of the transfer bar 52 It consists of a support tube 54 which is placed on the inner edge of the support body 53 to guide the support.

The support plate 51 is welded to both sides of the housing to support both bearing housings 12 of the lower roller 10, and the support 53 is also welded to the support plate 51 to convey the transfer bar 52 and The support tube 54 is supported.

In addition, the transfer bar 52 is screwed to the fixed support tube 54, and when the transfer bar 52 is rotated by the coupling of the fixed support tube 54, the transfer bar 52 is moved back and forth. .

Accordingly, the lower roller shaft 11 connected thereto is axially moved by the moving bar 52.

One end of the transfer bar 52 in contact with the bearing housing 12 is preferably a rectangular piece of rectangular parallelepiped shape to increase the contact area.

In addition, it is preferable that the stove groove 52a is formed at the other end of the transfer bar 52 to facilitate the rotation of the transfer bar 52.

Meanwhile, the support 53 is coupled to and supported by the support plate 51, and is provided to accommodate the support pipe 54 so that the transfer bar 52 can be reciprocated back and forth.

In addition, the support 53 is provided to be separated and assembled in two parts to facilitate assembly, and may be coupled by a coupling means such as a bolt.

On the other hand, the support pipe 54 is hollow is formed, the internal thread of the female thread is formed is screwed with the transfer bar 52, the outer edge is seated on the hollow portion of the support 53.

In order to prevent the front and rear movement of the support pipe 54 to be fixed, both ends are formed of the locking jaw, of course, as the transfer bar 52 is rotated back and forth by itself.

As described above, according to the present invention, the lower roller shaft and the gear shaft are coupled to the universal joint, and the gap is provided on both ends of the lower roller shaft so that the shaft can be moved for adjusting the gap between the lower roller and the guide plate. It prevents the resin material from winding or tangling.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will include such modifications and variations as fall within the spirit of the invention.

Claims (4)

A rotary cutter having a cutter blade formed on an outer circumference and cutting the cutting workpiece by rotation; A power transmission unit coupled to the rotary shaft of the rotary cutter through a coupler to transmit a rotational force; A lower roller coupled to the power transmission unit through a universal joint to receive a rotational force through the power transmission unit to rotate together with the rotary cutter to enable forward and backward axis movement of the rotary shaft; An upper roller positioned above the lower roller; A support holder positioned to enable the forward and backward movement between the rotary cutter and the lower roller, and a guide plate and a fixed blade for guiding the cutting workpiece drawn by the upper and lower rollers to the rotary cutter side; And It is coupled to one side of the lower roller, the pelletizer, characterized in that it comprises a spacing adjuster for adjusting the distance between the lower roller and the guide plate during the forward and backward movement of the support holder. The method of claim 1, The gap adjusting unit is coupled to both sides of the housing to support the lower roller shaft end to form a support space; A transfer bar configured to transfer the lower roller shaft to the horizontal guide plate; And The transfer bar is screwed through, but coupled to the support plate is characterized in that it comprises a support tube which is accommodated in the inner edge of the support for supporting the reciprocating movement of the transfer bar. The method of claim 2, Pelletizer, characterized in that the stove groove is formed at one end of the transfer bar to facilitate the rotation. The method of claim 1, The power transmission unit, characterized in that the gear box.

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