JPH057348U - Difficult-to-crush foreign matter discharging device of crusher - Google Patents

Abstract

(57) [Abstract] [Purpose] When a crushable foreign object is caught between crushing blades and it becomes inoperable, this overload state is detected, the crushing blades are reversed, the discharge window is opened, and the window is opened. Foreign matter is completely discharged from the discharge window by the projecting body of the scraping means that is laterally stretched between the pair of chains passing therethrough, and discharge work can be performed even when returning. [Composition] In a crusher that crushes objects to be crushed with at least one crushing blade that rotates and meshes with each other,
When the crushable foreign matter mixed in the crushed object is caught between the crushing blades and the overload cannot be operated, the crushing blade is detected by the overload detector provided in the crushing blade rotating means to detect the overload state. Reversely to release the above-mentioned foreign matter that has been bitten, open the opposing upper side wall discharge window near the crushing blade, and attach a plurality of horizontally extending projections between the pair of parallel chains passing through the opened discharge window. The scraping means is moved to discharge the released foreign matter through the discharge window.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a device for discharging difficult-to-crush crushed foreign matter in a crusher for waste or the like.

[0002]

[Prior art]

  An example of a conventional foreign matter discharging device for a shredder is shown in FIG. There is something like this. The crusher in this case mainly uses the shearing action, and is box-shaped. Cut into two shafts 102 and 103 that are horizontally rotatably mounted in parallel in the frame 101. The blade 104 and the spacer 105 are installed without a gap, and the biaxial type does not engage with each other. It is supposed to meet. The cutting blades 104, 104 of the respective shafts 102, 103 have an arrow R ₁ , R₂The object to be crushed is smoothly bitten by being rotated with a speed difference in the direction opposite to It is designed to shear and crush with a blade and an edge.

[0003]   The hopper 110 at the top of the box-shaped frame 101 has a head that forms one side wall. Extrusion material in which 111 is attached to the tip of the operating rod 113 of the extrusion cylinder 112 And a swayable damper 115 forming the other side wall opposite to each other A device is provided.

[0004]   Reinforcing bars, shaped steel, rocks and other hard materials and carbon fiber materials mixed in the crushed materials Excessive crushing of difficult-to-crush foreign materials such as tough and flexible objects between the cutting blades 104, 104 When the load state is reached, it is detected by the overload detection means and the two axes 102, 103 are automatically Under the control of the timer, reverse the rotation for a certain period of time to release the bite foreign matter first. Then The extruding cylinder 112 is extended and the foreign matter is dampered together with the unprocessed crushed material. 115 is pushed out and discharged, and after the cylinder 112 is returned, the normal crushing work is again performed. It

[0005]

[Problems to be solved by the device]

  In the above-mentioned conventional foreign matter discharging device, the head 111 just uses a square to remove rice etc. when discharging the foreign matter. Small size because it moves so as to cut the upper end of the box-shaped frame 101 for weighing Often, the foreign matter remains in the frame 101. Also, discharge operation several times Even if it is repeated, there is a problem that it is ineffective at the time of returning and it is inefficient.

[0006]

[Means for Solving the Problems]

  The present invention is designed to be crushed by at least one crushing blade that rotates and meshes with each other. In a crusher that crushes objects, crush difficultly crushed foreign substances mixed in the crushed objects Overload detection provided on the crushing blade rotation means when it becomes impossible to operate due to biting between the blades When the overload condition is detected with a container and the crushing blade is reversed and the foreign matter caught is released, Both of them open the opposing upper side wall discharge window in the vicinity of the crushing blade, and open the discharge window from the opened discharge window. The feature is that the released foreign matter is discharged while rotating the crushing blade toward the window. It is a difficult-to-crush crushed foreign matter discharging device of a crusher.   Further, the other invention is to provide a discharge window on each of the opposing upper side walls near the crushing blade. , When discharging foreign matter, open the discharge window and move the pair of parallel chains. The upper surface of the crushing blade is struck by the scraping means with a plurality of rakes, etc. The foreign matter can be reliably discharged by completely scraping it out together with the crushed material. In addition to doing so, it is also possible to perform scraping work even when returning.

[0007]

【Example】

  FIG. 1 is a longitudinal sectional view of a device for discharging difficult-to-crush crushed foreign matter of a waste crusher of the present invention, FIG. 1 is a transverse sectional view taken along the line II-II in FIG. 1, and FIG. 3 is a partial perspective view of the scraping means of the same device. FIG. 4 is an operation block diagram of the device, and FIG. 5 is a partial explanatory view of another arrangement of the scraping means. In these figures, 1 is a crusher and 10 is a foreign matter discharging device.

The waste crusher 1 has a casing 3 having a chute portion 3a into which the waste A is introduced from the conveyor 2 at the upper side and a crushing work chamber 3b at the lower side, and is rotatable in the work chamber 3b. A pair of parallel rotors 4 and 4 horizontally supported on the rotor 4 and a large number of protruding pieces 5 and 5 fixed in the working chamber 3b on the outside of the rotors 4 and 4 so as to prevent the crushed strips a from wrapping around. ,, and the difficult-to-crush alien substance discharging device 10, and the crushed small pieces a are dropped from the lower end opening of the casing 3. The rotor 4 is configured by combining a driving shaft 4a, which is engaged with a gear 4d at one end, with a large number of crushing blades 4b and spacing pieces 4c, and is rotated by an electric or hydraulic motor 6 in the directions of arrows R ₁ and R _2. It is supposed to be moved.

The foreign matter discharging device 10 stops the motor 6 by an overload detector 11 such as a meter relay or a pressure switch provided in association with the rotor driving motor 6 and an overload signal from the detector 11. And a controller (not shown) that operates to stop the conveyor 2 at the same time as reverse rotation (arrows S ₁ and S ₂ ) under timer control, and a discharge window 12 opened on the upper side near the rotor 4 on the opposite side wall of the casing 3. , 12, shutters 13, 13 that can be moved up and down to open and close the discharge windows 12, 12, a driver 14 such as a pneumatic cylinder that moves the shutter 13 up and down under the control of a controller, and the discharge windows 12, It is composed of a pair of chains 15 passing through 12 and a plurality of scraping devices 16 horizontally mounted between the chains 15, and a chain guide / drive system 17.

[0010]   The shutter 13 is a side wall facing the casing 3 (in the present embodiment, orthogonal to the rotor 4). However, it may be in the axial direction of the rotor 4). It is vertically slidable between the inner rails 13a and 13b. Ejection window after ejecting foreign matter After the lower edge flange 12a of 12 is cleaned by the pressure air injector 19 provided separately, The shutter 13 is also configured to be lowered.

[0011]   In the above configuration, the rotors 4 and 4 are rotated in the reverse direction to release the trapped foreign matter, and then the released discharge is performed. The motors 6, 6 individually provided on the window 12 are rotated in the same direction to remove foreign matter from the window 12. In addition to sending out from 12, scraper 16, ... There is also a configuration. The part of the outlet window 12 through which the chain 15 passes is channel-shaped to the outside. It is protruding and is appropriately sealed with rubber etc. so as not to obstruct the movement of the chain 15. ing. The chain guide / drive system 17 stretches each chain 15 into a rectangular shape. Four sprocket wheels 17a and rotatably supporting each wheel 17a With the bracket 17b and one of the four wheels 17a connected by a horizontal shaft It is composed of a motor 17c such as an electric motor which is driven to rotate normally and reversely. Tension hoi A module (not shown) is also provided as appropriate.

[0012]   The scraper 16, ... Is fixed laterally between the plurality of links of the pair of left and right chains 15. Fixed cross bar 16a and fixed to the cross bar 16a corresponding to the pitch of the crushing blades 4b. And a large number of protrusions 16b. The protruding body 16b is hard in a substantially T shape. It is made of various materials such as high quality rubber and plastic. The head can contact the cross bar 16a 'of the link. Also, scratch resistance In order to disperse the It can be shortened and lengthened toward the center, or made of flexible material. Therefore, it is possible to mix the lengths that reach the spacing pieces 4c for each row.

[0013]   Next, the operation of the difficult-to-crush crushed foreign matter discharge device 10 of the waste crusher of this embodiment will be described. And outline. During normal operation of the crusher 1, foreign matter H such as iron pieces is crushed between the crushing blades 4b, 4b. When it gets stuck and becomes inoperable, the overload detector 11 detects the overload condition and Output the load signal to the controller. The controller is the motor 6 and the conveyor 2 Stop and then reverse the motor 6 for 2-3 seconds under timer control The object H is released upward from between the crushing blades 4b and 4b.

[0014]   After reversing the motor 6 for 2 to 3 seconds, the controller stops the motor 6 and drives it at the same time. 14 and 14 are actuated to move both shutters 13 and 13 upward so that the discharge windows 12 and 12 Is opened and the motor 17c is rotated under the control of an encoder or the like to rotate the chains 15 and 1 5 in the direction of arrow T by a predetermined distance to move the scraper 16 to move the working chamber 3b. The foreign matter H that has passed through the inside and has emerged between the crushing blades 4b and 4b is opposite to the residual waste A. Discharge from the side discharge window 12 (indicated by arrow U). Move the scraper 16 to the opposite side wall After the movement, the motor 17c is reversed to return. This reciprocating operation should be done once or Needless to say, it may be appropriately selected depending on the type of waste A or the like. . If a scraping device 16 as shown in FIG. 5 is used, only the leading protrusion 16b has an excessive resistance. It is possible to prevent drag. The protrusions 16b, ... Are above the rotors 4 and 4. Can be completely scraped off, and the foreign matter H can be prevented from being left behind. .

[0015]   When the scraper 16, ... , 19 to discharge the air under the timer control onto the lower edge flange 12a of the discharge windows 12, 12. After spraying and cleaning, drive 14 and 14 to operate both shutters 13 and 13. It is moved downward and the discharge windows 12 and 12 are closed. After that, the crusher 1 operates the conveyor 2 And start normal operation. It is also possible to continue to reverse the rotors 4 and 4 while scraping. However, safety is required to avoid interference with the protruding body 16b of the scraper 16 during movement. I try to stop thinking. The scraper 16 operates reciprocally for each interruption → Instead of the above, it is configured to alternately reciprocate and return each time.

[0016]   In addition to stopping the rotors 4 and 4 while the scraper 16 ... By installing an intermediate gear for rotating in the same direction as the motor and solenoid valve, By rotating both rotors 4 and 4 in the moving direction, the foreign matter can be discharged more reliably. Is also configured.

[0017]

[Effect of device]

  As described above, according to the difficult-to-crush crushed foreign matter discharging device of the crusher of the present invention, Even if it becomes inoperable due to foreign matter being caught during the crushing work, the foreign matter is automatically left without manpower. It can be completely discharged without any trouble, and scraping work can be performed even when returning. .

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a difficult-to-crush crushed foreign matter discharging device of a crusher according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line II-II in FIG.

FIG. 3 is a partial perspective view of a scraping unit of the apparatus.

FIG. 4 is an operation block diagram of the device.

FIG. 5 is a partial explanatory view of another arrangement of the scraper.

FIG. 6 is a vertical sectional view of a conventional foreign matter discharging device.

[Explanation of symbols]

1 crusher 4b crushing blade 6 Crushing blade rotation means 11 Overload detector 12 discharge window 15 chains 16 scraping means 16b protruding body A waste H foreign material

Claims (4)

[Scope of utility model registration request] 1. A crusher for crushing an object to be crushed by crushing blades, at least one of which rotates to mesh with each other, in which crushable foreign matter mixed in the crushable object is bitten between the crushing blades. When the overload cannot be operated due to, the overload detector provided in the crushing blade rotating means detects the above-mentioned overload state and reverses the crushing blade to release the caught foreign matter and close the crushing blade. The opening of the discharge windows of the upper side walls facing each other is carried out, and the released foreign matter is discharged while the crushing blade is rotated from the opened discharge window toward the window. apparatus. 2. A crusher for crushing an object to be crushed by crushing blades, at least one of which rotates and meshes with each other, in which crushable foreign matter mixed in the crushable object is bitten between the crushing blades. When the overload cannot be operated due to, the overload detector provided in the crushing blade rotating means detects the above-mentioned overload state and reverses the crushing blade to release the caught foreign matter and close the crushing blade. Of the upper side wall discharge windows opposed to each other are opened, and a plurality of scraping means with a protruding body horizontally arranged between a pair of parallel chains passing through the opened discharge windows to move the released foreign matter from the discharge windows. A crushable bite foreign matter discharging device for a crusher characterized by discharging. 3. The apparatus of claim 2, wherein the chain is reciprocated multiple times. 4. The crushing blade is adapted to be rotated along with the moving direction of the scraping means when the scraping means is moved.
Equipment.