JPS6014797Y2 - Paper crusher - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pulverizer that pulverizes paper, old newspapers, old magazines, and other used papers into fluff.

Traditionally, shredders have been widely used as devices for cutting paper, etc. into small pieces, but such shredders can cut unnecessary documents and confidential documents into small pieces. The purpose of this method is to make it impossible to see what was previously written, so it is not suitable for cutting hard paper.

Therefore, shredders suitable for cutting and crushing cardboard, waterproof cardboard, and other hard papers have been developed for paper recycling. There is a limit to the size of paper, and it takes a lot of time and fuel to dissolve it for paper recycling.

In view of this, the present invention was devised for the purpose of providing a pulverizer that eliminates the above-mentioned drawbacks by pulverizing waste paper and the like into fluff.

Hereinafter, the present invention will be explained with reference to an embodiment shown in the drawings.

The main structure of the present invention is composed of a cutter roll 1 and an outer shell 2 that houses the cutter roll 1.
is provided with an inlet 3 for the raw material to be pulverized in the upper part, and an outlet 4 for the raw material to be pulverized in the lower part.

The cutter roll 1 is mounted on a base 5 located outside the outer shell 2.
There is a shaft 7 rotatably supported by a pair of upper bearings 6, 6 (one not shown), a belt pulley 8 is fixed to one end of the shaft 7, and a drive device (not shown) is attached to the pulley 8. A belt coupled to the cutter roll 1 is wound around the cutter roll 1 so as to rotate the cutter roll 1 in the direction of the arrow.

Inside the outer shell 2 of the shaft 7, a plurality of disks 9 of a predetermined size as support plates are arranged so as to penetrate at a predetermined interval in the direction of the shaft 7, and each disk 9 is arranged in the axial direction of the shaft 7. The disks 9 are positioned by a collar 10 fitted onto the shaft 7 so as not to move, and each disk 9 rotates integrally with the rotation of the shaft 7.

A plurality of holes are bored in an annular arrangement around each disk 9 at equal pitches, and a shaft pin 11 passes through these holes in parallel with the shaft 7.

Further, a plurality of flat swing cutters 12 are supported by the shaft pin 11 by being loosely fitted into holes 13 bored near one end of the swing cutters 12 .

The other end of the swing cutter 12 is formed into a sawtooth shape, and each cutter is fixed in position by a collar 14 so that it does not move in the axial direction of the shaft pin 11.

The outer shell 2 has an outer circumferential surface 2b at a plurality of locations on the inner circumferential surface 2a.
A concave portion 15 is formed so as to be convex with respect to the
This length is equal to the distance between both ends of each disk 9 in the axial direction.

A receiver blade 16 is embedded in the recess 15 at a position where the cutting edge of the swing cutter 12 is closer than the inner peripheral surface 2a.

Depending on the application, the protrusion amount of the receiving blade 16 may be adjustable using an adjustment bolt 17 as shown in FIG. 4, or it may be a fixed receiving blade 16a as shown in FIG. Furthermore, a spring may be interposed between the recess and the recess so that it can slide in accordance with the movement of the swing cutter 12.

Although the shape of the receiving blade 16 in the longitudinal direction is comb-shaped in this embodiment as shown in FIG. 3, it is not limited to this, and a shape suitable for each purpose may be selected. be able to.

Therefore, when the cutter roll 1 rotates, the blades of the swing cutter 12 are oriented in the radial direction with respect to the shaft 7 due to centrifugal force, and work together with the receiving blade 16 to crush the raw material that has entered between them into fluff. Operate.

The outlet 4 is located below the outer shell 2 and serves as an outlet for the pulverized raw material.

That is, the lower part of the inner circumferential surface 2a is an empty space,
A punching plate 18, which serves as a sieve plate with numerous small holes, is replaceably provided in the communication area between this cavity and the outer shell 2, so that only fine particles of the pulverized raw material can pass through. It has become.

In addition to the punched plate, the sieve plate may be a plate material having a mesh such as a wire mesh material.

Normally, as shown in FIG. 7, a chute 19 is provided at the tip of the outlet 4, and a fan 20 is further provided beyond that. It is designed to be attracted.

As shown in FIG. 7, the feed port 3 is normally connected to an outer shell 24 containing a rotary cutter 23 through which the raw material passed through a belt conveyor 21 and guide rolls 22 is first cut.

There is an adjustment weight 25 at the upper right end of the guide roll 22,
The filter paper is inserted between the belt conveyor 21 and a guide roll 22 located above the belt conveyor 21 to adjust the thickness of the filter paper.

There is a charging port 26 to the outer shell 24 at the front of the belt conveyor 21, and a fixed blade 28 of a fixed cutter 27 that cooperates with the rotary cutter 23 and a plurality of conical protrusions 29 are provided inside the outer shell 24 side. is the provision.

The fixed cutter 27 is placed on a guide plate 30 and is configured to be able to move forward and backward toward the rotary cutter 23 using an adjustment handle (not shown).

The rotary cutter 23 has many main cutters 31 and sub cutters 32.
and are alternately fitted and fixed on the shaft 33, and the main cutter 3
The auxiliary cutter 1 has a large diameter and has a shape similar to a milling cutter, and has the function of cutting the raw material.The sub cutter 32 has a small diameter and has many conical protrusions 34 fixed to the circumference in different directions. It works together with the conical protrusion 29 of the fixed cutter 23 to scrape and tear the raw material.

Next, the operation of the above embodiment will be explained.

First, raw materials such as loose paper placed on the belt conveyor 21 enter between it and the guide roll 22 and are fed into the outer shell 24 through the charging port 26.

Here, the rotary cutter 23 and the fixed cutter 27 work together to cut the material with the main cutter 31 and tear it with the auxiliary cutter 32.

The raw material that has undergone this process enters the feed port 3 of the outer shell 2, and a pulley 8 is rotated via a belt by a drive device (not shown), and the cutter roll 1 is rotated in the direction of the arrow.

At this time, the cutting edges of the swing cutter 12 loosely fitted on the shaft pin 11 of the disk 9 are all directed in the radial direction due to the centrifugal force, so that the cutting edges come closest to the inner circumferential surface 2a of the outer shell 2.

Since a plurality of receiving blades 16 are provided on the inner circumferential surface 2a of the outer shell 2, the receiving blades 16 and the swing cutter 1
The pieces of raw material that have entered between 2 and 2 are shredded again here,
When the powdered or cotton-like raw material reaches the punching plate 18 by rotation, the fine paper powder is transferred to the punching plate 18.
The particles that are too large to pass through the small holes will rise again as the cutter roll 1 rotates, and will be crushed by the cutter roll 1 again in the outer shell 2. will be carried out.

By repeating this operation, the powdered raw material transported to the outlet 4 becomes fluffy, passes through the chute 19, and is sent to the fan 20.
was carried out of the aircraft.

Although the above description has been made regarding the operation of the present invention in combination with a conventional shredder, it goes without saying that the preliminary crushing may be performed by other means.

Further, the support plate is not necessarily limited to a disk shape, but may be in the shape of a windmill having radial arms.

As explained above, the present invention provides a cutter roll rotated by a shaft in the outer shell in an outer shell having a raw material inlet in the upper part and a raw material outlet in the lower part, and the cutter roll rotates in the axial direction. A plurality of support plates are arranged at predetermined intervals on the outer shell, and a plurality of swing cutters are supported on a plurality of shaft pins arranged at equal pitches around each support plate, and the inner peripheral surface of the outer shell is is equipped with a plurality of receiving blades, and a sieve plate with countless small holes is provided at the outlet to sieve the raw material crushed by the rotation of the cutter roll, so that all the paper used as raw material is It is pulverized into a flocculent form, which has the advantage of significantly shortening melting time and saving fuel during regeneration compared to conventional pulverization means.

[Brief explanation of drawings]

Fig. 1 is a vertical side view showing an embodiment of the crusher according to the present invention, Fig. 2 is a front view of Fig. 1, Fig. 3 is a partially enlarged view of Fig. 2, and Fig. 4 is a swing cutter. Fig. 5 is a partially enlarged view of another embodiment showing the relationship between the swing cutter and the receiving blade, Fig. 6 is a front view of the punching plate, and Fig. 7 is a diagram of the present invention. FIG. 3 is a longitudinal sectional side view showing a specific application example of the crusher. 1...Cuck roll, 2...Outer shell, 3
......Inlet port, 4...Output port, 7.
...Axis, 9...Disc as a support plate, 1
1...Axis pin, 12...Swing cutter, 16, 16a...Blade, 18...
Punching board as a sieving board.

Claims (1)

[Scope of utility model registration request] A cutter roll rotated by a shaft in the outer shell is provided in an outer shell having a raw material inlet at the upper part and an outlet at the lower part, and the cutter roll has a plurality of support plates at predetermined intervals in the axial direction. A plurality of swing cutters are arranged and supported on a plurality of shaft pins arranged at equal pitches around each support plate, a plurality of receiving blades are provided on the inner peripheral surface of the outer shell, and a plurality of swing cutters are provided on the inner peripheral surface of the outer shell, A pulverizer for paper, etc., characterized in that the take-out port is equipped with a sieve plate having numerous small holes for sieving the raw material pulverized by the rotation of the cutter roll.