JP3012508B2 - Shear crusher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shear crusher for crushing various kinds of waste such as municipal garbage, and in particular, foreign matters which cannot be crushed by the crusher are mixed into the waste. The present invention relates to a shear crusher provided with a foreign matter elimination function for eliminating such a case.

[0002]

2. Description of the Related Art Examples of the shearing and crushing machine having the foreign matter removing function include a crushing device described in Japanese Patent Application Laid-Open No. 5-12028 and a biaxial shearing device described in Japanese Patent Application Laid-Open No. 7-845. Type crushing equipment. Each of these crushing rollers is provided with a shearing blade at a predetermined interval in each of the pairing crushing rollers, and the shearing blades are arranged in a meshing state with each other to form crushing means, and are movable in a direction perpendicular to the crushing roller. When a foreign matter that cannot be crushed is supplied, the foreign matter discharge plate is actuated and the foreign matter discharge plate is actuated to discharge the foreign matter.

[0003] In this case, however, the foreign matter discharge plate is formed in a comb shape allowing passage between the crushing blades on the side where the discharge plate is mounted. Therefore, the foreign matter discharge plate is advanced to a position where it comes into contact with the other crushing blade. . Therefore, the extruding of the foreign matter is insufficient, and it may be difficult to reliably extrude the foreign matter. For this reason, the applicant of the present application has previously proposed a shear crusher capable of discharging foreign matter on the other crushing blade (Japanese Patent Application No. Hei 7-299059).
issue).

[0004] Fig. 5 shows the outline. In the figure, a shear crusher 50 includes a crushing unit 3 in a housing 2 that is open at the top and bottom. The crushing section 3 has a pair of crushing rollers 4 and 5 rotatably mounted in parallel with each other. Each of the crushing rollers 4 and 5 is provided with shear blades 6 and 7 at predetermined intervals, respectively. 6, 7 polymerize in a mutually meshed state. The crushing rollers 4 and 5 rotate in the direction of meshing with each other, and crush the supplied crushed material by shearing blades 6 and 7. Reference numerals 8 and 9 denote fixed blades, and reference numeral 10 denotes an interval tube inserted between the crushing blades of each crushing roller.

[0005] Reference numeral 51 denotes a foreign matter pushing member provided above one of the crushing rollers 4.
Has a comb tooth 52 inserted between the shearing blades 6 of the crushing roller 4 on the member mounting side below, and an extrusion portion 53 having a predetermined height above the comb tooth 52. Numeral 54 denotes a drive cylinder for moving the foreign substance pushing member 51 forward and backward. The driving cylinder 54 always moves backward and the front surface of the pushing section 53 forms a part of one side wall of the housing 2.

Reference numeral 60 denotes a foreign matter scraping member provided to face the pushing member 51, and includes a pair of scraping plates 62 attached to the support shaft 61, and always forms a part of the other side wall of the housing 2. And an appropriate drive mechanism (not shown)
And rotates in synchronization with the operation of the foreign matter pushing member 51 to scrape foreign matter. The tip of the scraping plate 62 forms a tooth portion 63 inserted into the gap between the shearing blades 7 of the crushing roller 5 on the side where the scraping member 60 is mounted. 55 is formed on the front surface of the push-out portion 53, and the tooth portion 63 of the scraping plate 62 is formed.
Shows a comb-shaped groove portion that allows insertion. Reference numeral 64 denotes a foreign matter discharge receiving plate.

In this configuration, the foreign matter is pushed out by the foreign matter pushing member 51, and then the scraping plate 60 is rotated to scrape out the foreign matter.

[0008]

However, the foreign matter pushing member 51 having this structure can also remove the foreign matter scraping plate 62.
It may be difficult to reliably deliver the foreign object to the side.
In addition, there is a problem that the structure is complicated. In view of the above, an object of the present invention is to reliably discharge foreign matter between shearing blades of both crushing blades.

[0009]

According to a first aspect of the present invention, there is provided a shear crusher comprising a pair of crushing rollers, each of which has a shearing blade at a predetermined interval, and meshes the shearing blades with each other. In the shear crusher deployed in the state, one crushing roller side is provided with a non-crushable foreign matter pushing member,
The pushing member includes a lower pushing portion for the crushing roller on the member mounting side and an upper pushing portion for the crushing roller on the opposite side, and the lower pushing portion is inserted between the shear blades of the crushing roller on the member attaching side. Comb teeth are provided in the upper extruding part and comb teeth are inserted between the shearing blades of the crushing rollers on the opposite side.The upper extruding part moves together with the lower extruding part and can advance and retreat separately from the lower extruding part And pushing the foreign matter against the crushing roller on the member mounting side by the advance of the lower pushing portion,
It is characterized in that foreign matter is pushed out to the crushing roller on the opposite side by the advance of the upper push-out section.

[0010] The shear crusher according to the present invention having the above-mentioned structure,
With respect to the shearing blade of the crushing roller on the foreign matter pushing member side, even the foreign matter that has entered between the shearing blades by the lower pushing portion can be reliably pushed out and discharged. Also for the other crushing roller, the foreign matter is extruded between the shearing blades by the advance of the upper extruding portion. Accordingly, by operating these two pushing portions in association with each other, foreign matter remaining on the crushing blade and between the crushing blades can be reliably discharged.

According to a second aspect of the present invention, the upper extruding portion is inclinedly mounted on the lower extruding portion so as to insert the comb teeth provided on the upper extruding portion between the crushing roller shearing blades on the opposite side.

[0012] The shear crusher according to the present invention having the above-mentioned structure,
The comb teeth of the upper extruded portion can be inserted deeply between the shearing teeth of the crushing roller on the opposite side, and foreign matter that has entered between the shearing teeth can be efficiently removed.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a shear crusher according to the present invention will be described below with reference to FIGS. In FIG. 1, a shear crusher 1 includes a crushing unit 3 in a housing 2 that is open at the top and bottom. The crushing section 3 has the same structure as the above-mentioned well-known structure (Japanese Patent Application No. 7-299059), and the same components are denoted by the same reference numerals and description thereof is omitted.

Reference numeral 20 denotes a foreign matter pushing member provided on one crushing roller 4 side. The foreign matter pushing member 20 includes:
Lower extruding portion 21 having lower comb teeth 22 inserted between shear blades 6 of crushing roller 4 on the member mounting side.
And an upper extruding portion 30 slidable on a receiving plate 23 attached to the extruding portion 21 at an angle above the extruding portion 21. Reference numeral 24 denotes a drive cylinder 24 for moving the lower extruding portion 21 forward and backward.

The upper extruding portion 30 has a foreign matter extruding plate 31 on the front surface thereof, and a shearing blade 7 of the other crushing roller 5 provided thereon.
The upper comb teeth 32 inserted between them are attached. The shearing blades 6 and 7 are provided so as to mesh with each other, so that the upper comb teeth 32 and the lower comb teeth 22 are staggered from each other as shown in FIGS. 33
Reference numeral denotes a drive cylinder mounted on the receiving plate 23 and for moving the upper pushing section 30 forward and backward along the receiving plate 23. The inclination angle of the receiving plate 23 will be described later.

The lower extruding portion 21 is provided with a cover 25 for covering the upper extruding portion 30. An eave portion 26 is provided on the front surface of the cover 25, and the eave portion 26 is inclined at the same angle as the receiving plate 23. The part 30 is provided with an upper cover plate 34 that slides along the eaves part 26.

Reference numeral 40 denotes a rotatable shield plate that covers a foreign-matter discharge hole provided on the side opposite to the foreign-matter pushing member 20. The shielding plate 40 is opened and closed around the support shaft 41 by appropriate means (not shown). Reference numeral 42 denotes a foreign matter discharging guide plate.

Next, the operation will be described. During normal operation, as shown in FIG. 1, the foreign matter pushing member 20 is located at a position where the upper pushing section 30 forms one wall of the housing 2, and the supplied waste is supplied between the crushing rollers 3 and 4. A guide wall is formed so that

When it is found that foreign matter which is difficult to crush is mixed in the waste, the driving cylinder 24 is operated to advance the foreign matter pushing member 20, and the comb teeth 22 of the lower pushing part 21 are moved between the shear teeth 6. And push out the foreign matter. Then, when the comb teeth 22 reach the forward end position near the intersection of the crushing roller 5 and the shear teeth 7, the drive cylinder 24 is stopped, and the drive cylinder 33 is operated to operate the upper pushing section 30.
To move forward. At this time, the inclination angle of the receiving plate 23 is as shown in FIG.
Is set so that the comb teeth 32 advance into the shearing teeth 7 of the crushing roller 5 when the upper pushing section 30 is advanced as shown in FIG. As a result, the foreign matter is advanced beyond the top point of the crushing roller 5 and sent out to the shielding plate 40 side.

At this time, even if the upper pushing portion 30 starts to advance at a position where the shearing teeth 6 are not hindered while the lower pushing portion 21 is moving forward, the lower pushing portion 21 continues to move forward. Good. In any case, the drive cylinders 24, 3
The related operations of 3 are performed automatically.

Further, the shielding plate 40 is provided with the foreign matter pushing member 20.
Open before moving forward to allow foreign matter to be discharged. At this time, the crushing rollers 3 and 4 may continue to operate, or may be stopped or reversed to discharge foreign matter. Further, in this embodiment, an example is shown in which a swinging shielding plate 40 is provided on the foreign matter discharge side, but a scraping member that rotates similarly to the conventional example shown in FIG. 5 may be provided instead. However, in this case, the scraping member is a comb tooth 32 of the upper pushing portion 30.
It must be formed to a length that avoids collision.

[0022]

As described above, according to the present invention, a foreign matter extruding member is provided on one of the crushing rollers of the crushing roller group, and the foreign matter extruding member comprises a lower extruding portion and an upper extruding portion, and the lower extruding portion is provided. The upper extruding part has upper comb teeth for the shearing blade of the other crushing roller, and the upper extruding part has a lower extruding part. Moving along with the member and pushing out the foreign matter to the crushing roller on the member mounting side by advancing the lower pushing part and pushing out the foreign matter straddling the intersection of both crushing rollers,
Next, since the foreign material is sent out by advancing the upper extruding portion and the foreign material is extruded and removed from the other crushing roller, the foreign material is continuously removed from both the crushing rollers. it can. At this time, by attaching the upper extruded portion at an angle, foreign matter that has entered between the shearing teeth of the other crushing roller can be effectively eliminated.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a shear crusher to which the present invention is applied.

FIG. 2 is a sectional view taken along line XX in FIG.

FIG. 3 is a perspective view of an upper pushing portion.

FIG. 4 is an operation explanatory view of the shear crusher.

FIG. 5 is a longitudinal sectional view of a conventional shear crusher.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shear crusher 3 Crushing part 3 Crushing roller 4 Crushing roller 5 Shearing blade 6 Shearing blade 20 Foreign matter extrusion member 21 Lower extrusion part 22 Comb teeth 30 Upper extrusion part 32 Comb teeth

Claims (2)

(57) [Claims] 1. A shearing crusher in which a pair of crushing rollers are provided with shearing blades at predetermined intervals, and the shearing blades are arranged in a meshing state with each other. And a lower extruding portion for the crushing roller on the member mounting side, and an upper extruding portion for the crushing roller on the opposite side, and the lower extruding portion shears the crushing roller on the member mounting side. Comb teeth are inserted between the blades, and the upper extruded part is provided with comb teeth inserted between the shearing blades of the crushing roller on the opposite side, and the upper extruded part moves together with the lower extruded part and the lower extruded part. Part can be advanced and retracted separately from the crushing roller on the member mounting side by the advance of the lower extrusion part, and the reaction by the advance of the upper extrusion part. A shear crusher for extruding foreign matter to a crush roller on the opposite side. 2. The shearing device according to claim 1, wherein the upper extruding portion is inclinedly mounted on the lower extruding portion so as to insert the comb teeth provided on the upper extruding portion between the crushing roller shearing blades on the opposite side. Crushing machine.