JP2006159227A - Scraping-in device of volume reduction apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a volume reduction apparatus for soft waste constituted in such a manner that a disposal treatment object feeding port can mesh with a volume reduction screw section without stagnation of the treatment object in a volume reduction apparatus which is small in size, occupies less space for installation, and can be manufactured at low cost. <P>SOLUTION: The volume reduction apparatus for the soft waste which conveys and compresses the disposal treatment object by a screw body and houses the disposal treatment object into a storing section is provided with a scraping-in device in the disposal treatment object feeding port. The scraping-in device is so constituted as to be driven by rotation of the screw body by an engaging body of rotation engaging with the helical blades of the screw body. As a result, the driving force transmission parts for driving can be greatly reduced. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a scraping device provided at a charging port of a volume reduction device that compresses a soft waste disposal product such as paper scrap and vinyl with a screw to reduce the volume.

  When transporting or storing waste, if the same, the smaller volume is naturally advantageous during transport and storage, and a method for reducing the volume by compressing and deforming waste is shown in Japanese Utility Model Laid-Open No. 5-13696. There are known methods for compressing waste by pushing it into the compression chamber with a press plate using a cylinder or the like, and methods for compressing waste by pushing the screw by rotating the screw as shown in registered utility model No. 3022441. It has been.

Also, as shown in Japanese Patent Application Laid-Open No. 9-47898, there is provided a device for scraping or roughly cutting the processed material at the charging port so that the charged processed material can be bitten into the screw portion without delay. It has been known.
Japanese Utility Model Publication No. 5-13696 Registered Utility Model No. 3022241 Japanese Patent Laid-Open No. 9-47898

  In the conventional volume reduction device, when a certain amount of waste processing material is to be processed in a continuous manner, in the case of a method of pushing the compression plate into the compression chamber with a press plate, the press plate reciprocates so that the waste is discharged. In order to increase the volume reduction pressure, it is necessary to configure the entire apparatus with a robust member, and there is a problem that the apparatus is increased in size and the manufacturing cost is increased.

  In addition, the screw volume reduction device is configured to push paper waste into the storage portion by a screw conveyor and can be configured compactly. Since the volume reduction compression is performed by a screw, the volume reduction pressure can be increased with a simple member. However, there is a problem that when a large amount of waste processed material is charged at once or put in a bag or the like, it becomes difficult to bite into the screw part, and the waste processed material stagnates. On the other hand, it is effective to provide a scraping device or a rough cutting device at the inlet, but there is a problem that the device becomes complicated and the manufacturing cost increases.

  Therefore, an object of the present invention is a volume reduction bagging machine that is small in size, requires less installation space, and can be provided at a low price. The object is to provide a volume reduction device for soft waste.

  In order to solve the above-mentioned problems, there are an insertion port for throwing in a waste treatment product, a screw body for conveying and compressing the thrown-in waste treatment product, a storage portion for storing the treatment product on the screw body outlet side, In a soft waste volume reduction device configured with a control device for controlling, a waste treatment device scraping device having a rotation axis perpendicular to a screw body provided at an input port is provided with a spiral blade of the screw body. An engagement rotating body to be engaged is provided, and a scraping device for a volume reducing device is provided, wherein the engagement rotating body is rotated and driven by rotation of a screw.

  Due to the volume reduction by the screw body, it is possible to provide a small volume reduction device with less installation space, and it is possible to continuously input waste treatments compared to the press method, and a large deformation compression force with a relatively simple member. Since it can be obtained, the manufacturing cost can be kept low.

  By providing a scraping device scraping device that has a rotation axis perpendicular to the rotation axis of the screw body at the loading port, a large amount of processed material can be charged at once or put in a bag etc. In this case, the scraping device forcibly feeds the screw body to the screw body side, so that the waste material does not get caught in the screw body and does not stagnate at the inlet, and the scraping device is engaged with the screw blades of the screw body. Since the screw body is driven by the mating engagement rotating body rotating, the power transmission parts for driving can be greatly reduced. Further, since the screw body does not rotate and does not drive, the rake device is driven unilaterally. Thus, it is possible to avoid inconveniences such as clogging of processed products.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a front view of a volume reduction device embodying the present invention, FIG. 2 is a side view of a part of the volume reduction device, FIG. 3 is a side view showing a replacement state of a storage bag, and FIG. FIG. 5 is a perspective view showing the main part of the storage bag holding part, FIG. 6 is a plan view of the main part of the charging port part, and FIG. 7 is the main part of the scraping device part. FIG. 8 is a side view of the engaging rotator of the scraping device portion, and FIG. 9 is a flowchart of the control device.

  Reference numeral 1 denotes a frame for mounting a volume reduction device, which can be moved by a caster 1a. The upper part of the frame 1 is a compressing / conveying part for the waste-treated product, and the lower part is a storage chamber for storing the waste-treated product in a bag. In the screw housing 2b of the compression / conveyance unit, a screw body 2 having a rotating shaft in the vertical direction and compressing and conveying the waste treatment product is provided, and is driven by a motor 10 provided at the rear of the screw body 2. A sprocket 10 a is fixed to the output shaft of the motor 10, and a roller chain 10 b is wound around the sprocket 2 a fixed to the upper end portion of the screw body 2 to drive the screw body 2.

  The waste processed material introduced from the insertion port 3 opened obliquely above the screw body 2 is sent to the screw body 2 by the scraping device 30 and conveyed downward by the spiral blades of the screw body 2 and deformed. Compressed. A lower outlet side of the screw body 2 serves as a storage portion, and a bag holding portion 4 for a storage bag for storing the waste treatment product is provided at the outlet portion, and a storage bag 40 is attached thereto. The mounting portion of the storage bag 40 has a hole that is substantially the same diameter as the inner diameter of the outlet portion of the screw body 2, and the lower portion of the hole is a conical bag guide portion that spreads downward toward the bottom. The waste disposal product pushed out is dispersed by the bag guide portion so as to spread toward the end in the direction of arrow F, and can be stored in the storage bag 40 having a diameter larger than the inner diameter of the screw body outlet. The lower surface of the storage bag 40 is supported by a table 43 provided so as to be movable in the vertical direction, and the table 43 moves up and down by rotating the motor 42 provided behind the screw housing 2b in the normal direction.

  The roller chain 42b is stretched up and down on a sprocket 42a fixed to the motor 42 and a guide roller 42c rotatably provided on the lower frame, and both ends of the roller chain 42b are fixed to one end of the table 43, respectively. When the normal rotation is reversed, the table 43 moves up and down. A rail 1b having a U-shaped cross section provided in the vertical direction on the frame 1 is arranged on the left and right and the rear of the table 43, and a guide roller 43b provided rotatably on the table 43 is moved with the inside of the U-shaped rail 1b as a guide. By doing so, the table 43 moves in parallel up and down and the storage bag holding surface is held horizontally.

  When the door 5 is opened and the handle 41b of the attachment / detachment fitting 41a is pulled out to the front, the attachment / detachment attachment 41a is detached from the bag holding attachment 41. The inlet portion of the storage bag 40 is inserted into a hole provided approximately the same diameter as the screw body outlet portion inner diameter of the detachable fitting 41a, the bag inlet portion is folded back to the outside of the hole, and is inserted into the bag holding fitting 41 again. When the storage bag 40 is set by holding the part between the attachment / detachment fitting 41a and the bag holding fitting 41 and the door 5 is closed, preparation for the operation of the volume reduction device is completed.

  61a is a door sensor for detecting the open / closed state of the door 5, and is controlled so that the volume reduction device does not operate when the door 5 is open. 61c is a bag sensor for detecting whether or not the detachable fitting 41a is correctly set on the bag holding fixture 41, and is controlled so that the volume reducing device cannot be operated unless it is set correctly.

  The storage bag 40 mounting surface of the table 43 is configured so that it can be pulled out to the near side when the door 5 is opened, and is placed on the table 43 when the heavy storage bag 40 is stored after the waste material is stored. Can be pulled out. Reference numeral 43a denotes a table lock fitting for fixing the drawer portion of the table 43, and the table lock fitting 43a is engaged with and fixed to the lock pin 43c on the table main body side.

  When the operation switch of the control panel 6 provided at the side of the insertion port 3 is pushed and the device is operated, the motor 41c of the bag holding unit 4 is operated as shown in FIG. The screw housing 2b is attached in close contact with the attachment / detachment fitting 41a and the storage bag 40 attached thereto. When the entrance portion of the storage bag 40 is in close contact, the table 43 on which the bottom surface of the storage bag is placed rises, and the storage bag bottom surface is brought close to the outlet portion of the screw body 2. When the ascent of the table 43 is finished, the screw body 2 is operated, and the waste processed material introduced from the insertion port 3 is conveyed and compressed and pushed out from the outlet portion of the screw body 2 to the storage bag 40.

  The waste processed product pushed out is blocked by the table 43 on which the bottom surface of the storage bag 40 is placed, and is pressed in the storage bag 40. A load acts on the screw body 2 by the reaction force that is pressed, and the current value of the driving motor 10 changes. By controlling the table 43 to be lowered so that the current value becomes constant, the pressing force becomes constant, and the waste processed material that has been reduced in volume by being uniformly pressed into the storage bag 40 can be stored.

  The vertical position of the table 43 is detected by each sensor arranged in the vertical direction on the rear side of the table, and the vertical position is controlled by the control unit. 61d is a bag table upper limit sensor for sensing the upper limit position of the table 43, and the raised table stops rising at this position. Reference numeral 61g denotes a full position sensor, which senses when the waste bag 40 is filled with the waste processing product and the table 43 is gradually lowered and becomes full, and stops the screw body 2 to stop the filling. When the holding metal fitting 41 is lowered and the table 43 is further lowered to detect the take-out position sensor 61h, the descent stops and the storage bag 40 can be taken out.

  In FIG. 5, the bag holding part 4 will be described. The bag holding metal fitting 41 has a horizontal surface on which the detachable metal fitting 41a is placed, and a plurality of round bar-shaped guide bars 41h projecting in a direction perpendicular to the horizontal surface are inserted into the guide boss 1c provided on the frame 1 side to be guided, thereby causing the vertical direction. It is comprised so that it can go up and down in parallel.

  The raising and lowering of the holding metal fitting 41 is activated by driving a motor 41c provided on the front side of the screw body 2 below the insertion port 3, and a boss portion provided at an intermediate portion of the swing arm 41d is fixed to the output shaft of the motor 41c. One end of the swing arm 41d extends to the outer periphery of the motor output shaft provided with the bag holding lock sensor 61e and the bag holding release sensor 61f for sensing the rotational position. Activate each sensor.

  Further, the other end of the swing arm 41d is fixed to an arm extending horizontally in the horizontal direction, and one end of the link arm 41e is rotatably connected to the left and right ends of the arm. The other end is connected to a vertical movement arm 41f that raises and lowers the bag holding metal fitting 41. The vertical movement arm 41f is attached with an arm shaft 41g fixed on the frame 1 side as a rotation fulcrum, one end connected to the link arm 41e, and the other end in the horizontal direction of the bag holding bracket 41. When the motor 41c is engaged with the extended vertical movement pin 41j through a long hole and the motor 41c rotates, the arm that extends horizontally in the horizontal direction moves the link arm 41e back and forth, and the vertical movement arm 41f moves up and down. The bag holding metal fitting 41 is moved up and down by rotating in the direction.

  The vertical position of the bag holding metal fitting 41 is controlled by signals from the bag holding lock sensor 61e and the bag holding release sensor 61f provided in the motor 41c, and the motor 41c moves the bag holding metal fitting 41 when the bag holding lock sensor 61e operates. It stops at the raised position, and stops at the lowered position when the bag holding release sensor 61f is activated.

  The detachable metal fitting 41a is used to set the storage bag 40. The detachable metal fitting 41a is detachable from the bag holding metal fitting 41. The screw is attached to the cylindrical portion having a hole substantially the same diameter as the inner diameter of the outlet of the screw body 2. The body 2 outlet side is provided with a ring-shaped collar in the horizontal direction, and the lower part has a conical bag guide part that expands downward, and the inlet part of the storage bag 40 is inserted into the cylinder from below. Then, the bag entrance portion is folded back and wound around the ring-shaped brim, and the insertion bag 40 is sandwiched and held on the holding surface of the bag holding metal fitting 41 cut out in a U shape by the flange portion. At this time, the closing allowance when closing the bag can be adjusted by adjusting the winding amount of the storage bag.

  Further, when the bag holding metal fitting 41 rises and comes into close contact with the screw housing 2b mounting plate of the frame 1, the storage bag 40 is securely held by being held between the bag holding metal fitting 41 and the frame 1 side. Reference numeral 41b denotes a handle for attaching / detaching the attaching / detaching bracket 41a. The control unit is configured so that the bag set sensor 61c senses whether the detachable fitting 41a is securely inserted into the bag holding fitting 41, sends a signal to the control unit, and the apparatus does not operate unless it is set correctly.

  The scraping device 30 will be described with reference to FIGS. An engagement rotating body 30a having a rotation axis in a direction perpendicular to the rotation axis of the screw body 2 by meshing with the spiral blade 2c of the screw body 2 is provided at a substantially central portion of the scraping device 30 provided in the insertion port 3. A plurality of scraping blades 30b are disposed on the left and right sides of the engaging rotating body 30a of the rotating shaft to scrape the waste material in the direction of the screw body 2 or to break the bag. The raking blade has a cutting blade that cuts the thrown-in waste disposal material, and if configured, rough cutting is also possible.

  When the screw body 2 rotates in the Z direction, the engagement rotating body 30a rotates in the Y direction by sliding on the inclined surface of the spiral blade 2c of the screw body 2. The engagement rotating body 30a in this example is a flower shape having a notch portion so as to escape from the outer diameter of the spiral corresponding to the spiral pitch of the spiral blade 2c on the disk-like plate so as to mesh with the spiral blade 2c while rotating. The reverse rotation is also possible. The engaging rotator 30a may be not provided in a plate shape as in this example, but may be provided with a groove having a torsion angle to be engaged with the spiral blade 2c with a certain width in the axial direction.

  The control operation by the control circuit will be described with reference to the flowchart of FIG. When the power switch is turned on (S1), the power lamp is turned on to check whether the operating conditions are adjusted. In the case of the operating condition shown in S2, the operation of the apparatus cannot be started, and all the apparatuses are stopped even during the operation.

  The operating condition (S2) is that when the emergency stop switch is pressed and turned on, an overload is applied to each motor in the device and the overload protection device is activated. In the case of OFF, when the table 43 on which the storage bag 40 is placed is pulled out and the bag set sensor 61c is OFF, the lamps of the control panel 6 provided on the side of the waste processing material inlet 3 are lit and the operating status Is displayed.

  The selector switch can be switched between automatic operation and manual operation. When the operation switch is switched to automatic operation (S3) and the operation switch is turned ON (S4), the device starts operation and holds the bag in which the storage bag 40 is set. When the holding portion is raised (S5) and the bag holding lock sensor provided in the motor 41c senses, the raising stops and the storage bag inlet portion is brought into close contact with the outlet portion of the screw body 2 (S6). Next, the table 43 on which the bottom surface of the storage bag 40 is placed is raised (S7), and stopped when the bag table upper limit sensor 61d is turned on (S8).

  When the table 43 is stopped, the screw body 2 is rotated (S9), and the waste processed material introduced from the insertion port 3 is deformed and compressed by the screw and is conveyed to the lower storage chamber side and pushed out. The extruded waste product is blocked by the table on the bottom surface of the storage bag 40 and pressed and compressed. If the pressing continues further, the pressing force increases, and the reaction force also increases the load of the motor 10 that drives the screw body 2 proportionally, and the table 43 is lowered so as to keep this load current constant. The storage pressure in the storage bag 40 is kept constant.

  The screw body 2 rotates and the load current of the motor 10 is detected (S10). When the set load current value is reached, the table 43 descends for a predetermined time and stops. This is repeated, and when the table 43 reaches the full position sensor 61g position (S11) and the load current value reaches the set value, the rotation of the screw body 2 is stopped and the pushing out of the waste processed material is stopped (S12).

  Next, the bag holding fitting 41 of the bag holding part 4 is lowered by driving the motor 41c, and when the bag holding release sensor 61f provided in the motor 41c part senses, the motor 41c is stopped and the lowering is finished (S13). Subsequently, the table 43 on which the storage bag 40 is placed is lowered and stopped when the take-out position sensor 61h senses (S14), the operation lamp is turned off, the completion lamp is turned on, and the storage bag 40 in which the waste disposal product is stored is removed. It can be taken out.

Front view of a volume reduction device embodying the present invention Side view with partial cross section of the volume reduction device Side view showing storage bag replacement Side view showing the start of filling the storage bag The perspective view which showed the principal part of the storage bag holding part A plan view of the cross section of the main part of the inlet Perspective view of the main part of the scraping device Side view of the engaging rotating body of the scraping device Flow chart of control device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame 1a Caster 1b Rail 1c Guide plate 10 Motor 10a Sprocket 10b Roller chain 2 Screw body 2a Sprocket 2b Screw housing 2c Spiral blade 3 Input port 30 Scratching device 30a Engagement rotating body 30b Scratching blade 4 Bag holding part 40 Storage bag 41 Bag holding bracket 41a Detachable bracket 41b Handle 41c Motor 41d Swing arm 41e Link arm 41f Vertical arm 41g Arm shaft 41h Guide bar 41i Vertical motion pin 42 Motor 42a Sprocket 42b Roller chain 42c Guide roller 43 Table 43a Table lock bracket 43b Guide Roller 43c Lock pin 5 Door 6 Control panel 61a Door sensor 61b Tab set sensor 61c Bag set sensor 61d Bag table upper limit sensor 61e Bag holding lock Support 61f bag holding release sensor 61g full position sensor 61h take-out position sensor

Claims (1)

Consists of a slot for throwing in the waste material, a screw body that conveys and compresses the waste material that has been thrown in, a storage part that is on the screw body outlet side and stores the processed material, and a control device that controls these. In a soft waste volume reduction device,
The scraped material scraping device having a rotation axis perpendicular to the screw body provided at the inlet is provided with an engagement rotating body that engages with the spiral blade of the screw body, and the screw rotates. A scraping device for a volume reducing device, which is driven by rotating a combined rotating body.

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