JPS6028513Y2 - Grinding equipment - Google Patents

Description

[Detailed Description of the Invention] Technical Problem The present invention deals with launches and sprues of finished products, or defective molded products (hereinafter referred to as crushed products).

) into a predetermined pellet shape in order to reuse it as a molding raw material.

BACKGROUND ART When pulverizing a material to be crushed, most of the material to be crushed can be used as a predetermined pellet-like pulverized material, but it is pulverized into a powder by rotation of a movable blade.

This powder tends to accumulate inside the crushing device, impeding its smooth operation, and also adheres to the inside of the supply pipe connecting the crushing device and the molding machine, which has the disadvantage of obstructing the supply to the molding machine. .

In particular, powder is easily charged and tends to adhere to equipment, and also tends to attract dust and the like in the factory atmosphere, which has been a factor in causing dust to adhere to the pulverized material.

Purpose The present invention has been devised to solve the above-mentioned conventional drawbacks, and its purpose is to provide a crushing device having a structure that allows extremely easy removal of powder etc. adhering to the device. There is a particular thing.

EXAMPLE Hereinafter, a crushing device according to the present invention will be described according to an embodiment of the present invention.

Fig. 1 is a front view schematically showing the crushing device according to the present invention, and Fig. 2 is a side view of the same, and in the figure, 1a is a storage case of the crushing device 1, and the material to be crushed is put into the storage case 1a. A hopper section 2, a crushing section 3, a pressure generating section 4, and a driving section 5 are housed.

The hopper section 2 is composed of a supply hopper 6 into which the material to be crushed is input and a hopper main body 8. A damper 7 capable of closing an opening 6a of the supply hopper 6 is pivotally supported on the hopper main body 8.

The hopper main body 8 is composed of an upper hopper 9 and a lower hopper 10, and the upper hopper 9 and the lower hopper 10 are separably connected by a clamp member 13 constituting a connecting member.

That is, a rotatable base end portion of the clamp member 13 is rotatably supported on the lower flange 11 of the upper hopper 9 by a bolt 13a.

A pair of upper and lower clamping parts 13d having a U-shaped cross section are integrally formed at the free end of the clamp member 13, and a notch 13c is formed in the upper clamping part 13d.

Then, the clamp member 13 is inserted into the fifth position around the bolt 13a.
When rotated clockwise as shown in the figure, the holding portion 13d
holds the lower flange 11 and the upper flange 12 of the lower hopper 10, and is engaged with a stop pin 14 provided on the lower flange 11 in the notch 13c.

As the stop pin 14 spirals, the clamp member 13 is moved against the lower flange 11.
The cliff is tightened.

Note that 13b in the figure is a protrusion for rotating the clamp member 13.

A large number of ventilation holes 15 constituting an air introduction section are formed in the side wall of the upper hopper 9, and air flows into the hopper section 2 through the ventilation holes 15.

Incidentally, reference numeral 16 in the figure represents an air filter attached to the ventilation hole 15.

The hopper section 2 is detachably connected to the crushing section 3 at a lower flange 18 of the lower hopper 10.

The crusher body 23 of the crushing section 3 is composed of an upper body 21 and a lower body 22, and a crushing chamber 20 is formed between the upper body 21 and the lower body 22. A pair of opposing fixed blades 24 are connected to the upper body 21 and the lower body 2.
It is held between 2 and 2.

A rotor 19 is rotatably housed in the crushing chamber 20, and one shaft 5a of a drive unit 5 such as an electric motor is connected to the rotor 19.

A pair of movable blades 19a are fixed to the outer periphery of the rotor 19 so as to face each other.

Further, a screen 25 is attached below the grinding chamber 20, and the screen 25 has a curved surface substantially equal to the rotation locus of the rotor 19, and has a large number of holes 25a.

In the figure, 26 is a discharge chamber connected to the grinding chamber 20 via a screen 25, and 23a is a side cover of the grinding section 3 which is detachably attached.

On the other shaft 5b of the drive section 5, a pressure generating section 4 is connected to a pulley 2.
7, 28 and a timing belt.

The pressure air generator 4 is composed of a shaft 30 that is pivotally supported by a casing 32 and a fan 31 such as a turbo blow or a ring blow that is fixed to the shaft 30. The inhaled air is shaped and discharged through the outlet 3.
It is discharged from 4.

Note that an air filter 35 is attached to the suction port 33.

An air filter 35 is attached to the suction port 33.

A joint member 36 that communicates with an ejector 38 to be described later is attached to the bottom surface of the storage case 1a, and the discharge port 34 is communicated with the joint member 36 through a pressure pipe 37.

An ejector 38 is attached to the bolt 4 on the lower surface of the storage case 1a.
The pulverized material is supplied into the ejector 38 through the discharge chamber 26, and pressurized air is also supplied from the joint member 36, so that the supplied pulverized material is pumped by the pressurized air.

In addition, 38a in the figure is a discharge port for the pulverized material. Further, a ventilation hole 41 is formed in the side wall of the storage case 1a, and air flows into the storage case 1a through the ventilation hole 41.

An air filter 42 corresponding to the ventilation hole 41 is attached to the storage case 1a.

The operation of this embodiment will be explained below.

First, to explain the normal crushing operation, after a predetermined amount of crushed material is placed on the damper 7 via the supply hopper 6, the damper 7 is opened, and the crushed material is fed into the crushing section 3 through the hopper section 2. be done.

Then, the object to be crushed is sheared by the rotational drive of the movable blade 19a by the operation of the drive unit 5, and is crushed into crushed objects of a predetermined size, and the crushed objects are discharged from the crushing chamber 20 through the holes 25a of the scree 25. It passes through the discharge chamber 26 and falls into the ejector 38.

On the other hand, the driving force of the drive unit 5 is applied to the shaft 30 via the transmission mechanism, rotates the fan 31, compresses the outside air taken in from the intake port 33 through the air filter 35, and converts it into pressurized air PE.
At the same time, the pressurized air PF is supplied to the joint member 36 through the pressurized air pipe 37, and then to the ejector 38, and discharges the pulverized material to the outside from the discharge port 38a.

Next, when cleaning the crushing device 1, the clamp members 13 attached to the upper hopper 9 are rotated outward to release the clamping between the lower flange 11 and the upper flange 12 by the clamp members 13, The upper hopper 9 is separated from the lower hopper 10.

Therefore, in this embodiment, the crushing part 3 and the pressure air generating part 4 are rotationally driven by one driving part 5 to crush the material to be crushed and to generate pressure air, so that it is possible to reduce the motor noise source, and also to reduce the noise caused by the parts. The number of points can be reduced and the production cost can be reduced.

In addition, since the pressurized air PF for discharging the pulverized material is supplied to the ejector 38 via the air filters 16, 35, 42, it is possible to prevent dust from entering into the pulverizer 1.

Furthermore, since the hopper section 2 can be divided into two parts by rotating the clamp member 13 outward, the inside of the hopper section 2,
It is possible to easily remove the powder-like pulverized materials adhering to the inside of the pulverizing section 3.

As explained above, the present invention is a crushing device having the configuration described in the claims for utility model registration, and with this configuration, the hopper part of the present invention can be divided by one operation.
It is extremely easy to clean and hang.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a partially cutaway schematic front view of the crushing device according to the present invention, FIG. 2 is a schematic side view, and FIG. 3 is a schematic side view. A plan view of the hopper section,
FIG. 4 is a sectional view taken along the line A--A in FIG. 1, and FIG. 5 is an enlarged plan view of the clamp member. 1 is a crushing device, 2 is a hopper section, 3 is a crushing section, 4 is a pressure generation section, 5 is a drive section, 7 is a damper, 9 is an upper hopper, 10 is a lower hopper, and 13 is a connecting member.

Claims (1)

[Scope of Claim for Utility Model Registration] A part of the hopper into which the crushed material is charged, a crushing section that crushes the loaded crushed material using a rotating movable blade and a fixed blade, and a pressure air generating section that forces the crushed material to the outside. and a drive unit that applies driving force to the crushing unit and the pressure air generating unit, respectively, are housed in a storage case, wherein the hopper unit has a damper attached to an opening that is driven to open and close. It is characterized by comprising an upper hopper and a lower hopper connected to the crushing section, the upper hopper and the lower hopper being separably connected by a connecting member, and an air introduction section being attached to the upper hopper. Grinding equipment.