JP2010184414A - Bumper volume reduction machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bumper volume reduction machine which enables the efficient storage and conveyance of a bumper while reducing cost involved in reutilizing the bumper as a new material resource. <P>SOLUTION: In order to solve the problem, a bumper volume reduction machine 1 is introduced as a solution means and operates as follows: A pair of rollers 3 and 4 are arranged in parallel and driven to rotate in an opposite direction to each other, then draw a bumper B to be inserted into between the rollers 3 and 4 from the introduction side by the rotation of each roller 3 and 4, and flatten the bumper B like a flat sheet to be discharged from the discharge side. One roller 3 of the rollers has a rotary shaft 3a and a plurality of cutting blade wheels 5 which are equipped with a plurality of cutting blades 6 arranged on the outer circumference and juxtaposed axially on the outer circumference of the rotary shaft 3a. On the other hand, the other roller 4 has a columnar region opposed to the outer circumference of the cutting blade wheel 5. Furthermore, a gap is formed between the optional cutting blade wheels 5 of the roller 3, and a scraper 14 which prevents the bumper B from being wound around the roller 3 is arranged in the gap, and besides, at the discharge side. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a bumper volume reduction machine.

  In recent years, from the viewpoint of protecting the global environment and depleting resources, there has been an increase in the reuse of resources, and resin bumpers mounted on the front and rear of automobile bodies are also recyclable resins. It is desired to recover the lysate and reuse it as a resin product material.

  When collecting bumpers from scrapped vehicles and recycling them, in general, the vehicles are dismantled at a dismantling site, the bumpers are removed, the removed bumpers are transported to a recycling facility, and the bumpers are recycled at the recycling facility. Will do.

  In this way, in order to recycle a bumper, it is necessary to go through a facility that performs removal work and a facility that recycles the bumper, so it is necessary to transport the bumper from the demolition treatment plant to the recycling facility, and to some extent It is necessary to store a certain amount of bumpers at the demolition treatment plant.

  However, because the bumper has a complicated shape, it will be bulky even if it is stacked, etc., so it is difficult to secure a storage place in the demolition processing site, there is a problem that transportation efficiency is bad and transportation cost increases. .

  In order to solve this problem, a bumper volume reducing machine has been proposed in which the bumper is cut into small pieces to form a chip-like resin, and the volume during storage and transportation is reduced, that is, the volume is reduced.

  In this bumper volume reducing machine, a pair of rotating shafts provided with a plurality of cutters are provided, and each rotating shaft is rotated to bite the bumper with the cutter, and the bumper is cut with the cutter.

  Specifically, this bumper volume reduction machine includes a pair of rotary shafts provided with a plurality of cutters provided with eight blades on the outer periphery at an interval in the axial direction, and the cutters of the rotary shafts are staggered. That is, each rotating shaft is arranged in parallel so that the cutter of the mating rotating shaft that is paired between the cutters enters, and in order to cut the bumper finely, the cutter on one rotating shaft is adjacent to this. Almost no gap is provided between the cutters on the other rotating shaft and the outer periphery of each cutter on each rotating shaft and the outer periphery between the cutters of the other rotating shaft that opposes each cutter. Almost no provision is made (for example, see Patent Document 1).

  In this bumper volume reducing machine, a bumper having a complicated shape is finely cut to obtain a chip-like resin that is convenient for transportation and storage.

Japanese Patent Laid-Open No. 2003-135989

  The conventional bumper volume reduction machine described above is superior in that the volume of the bumper can be greatly reduced because the bumper is made of a fine chip-shaped resin, but the material of the bumper is not uniform. In addition to PP (polypropylene), it is made of various resins such as ABS resin and PU (polyurethane), and is always engraved indicating the material, but after cutting it becomes disjointed and the part with the inscription is another part. Since the material is unknown, the material must be sorted and cut for each material. If the sorting is not thorough, different types of resin will be chipped and mixed after volume reduction of the bumper. Will end up.

  If a recycled material of a different material is mixed with the recycled material at the stage of recycling, there may be a problem that the mechanical properties of the resin product using the recycled material are significantly lowered.

  Therefore, separation of recycled materials must be strictly performed. When bumpers are made into chips as described above, not only is it necessary to classify the recycled materials by material at the demolition treatment site, Since it is separated, managed, stored, and transported every time, the work in the demolition processing plant becomes complicated, and separation management is similarly performed in a recycling facility where recycled materials other than bumpers will be brought in. As a result, the cost from collecting the bumper to recycling it increases.

  Accordingly, the present invention has been developed to improve the above-described problems, and its object is to provide a bumper that realizes efficient storage and transportation of the bumper while reducing the cost of recycling the bumper. To provide a volume reduction machine.

  In order to solve the above-described object, the problem-solving means in the present invention includes a pair of rollers that are arranged in parallel and are driven to rotate in opposite directions, and a bumper inserted between the rollers from the loading side is provided for each roller. A bumper volume reduction machine that pulls in by rotation, flattenes into a flat plate shape, and discharges from the discharge side. One roller is equipped with a rotating shaft and a plurality of blades on the outer periphery, and is mounted side by side on the outer periphery of the rotating shaft. A plurality of blade rings, the other roller is provided with a cylindrical portion facing the outer periphery of the blade ring, a gap is provided between any blade rings in one roller, and between the gaps on the discharge side A scraper for preventing the bumper from being wound around one of the rollers is provided.

  According to the bumper volume reducing machine of the present invention, by sandwiching the bumper between the roller blade and the outer periphery of the roller, a large pressure is locally applied to the bumper to crush the ribs and protrusions provided inside the bumper. Moreover, an appropriate blade shape can be attached to the portion sandwiched between the bumper blades, and the bumper can be flattened without being restored to its original shape by elasticity.

  The bumper volume reduction machine can flatten the bumper in a single state without cutting the bumper apart, and the flat bumper can be stacked in layers, so that the transportation efficiency is not bulky during transportation. Since it can be made good and flattened in a state where the stamp of the bumper can be confirmed, the material can be confirmed at the dismantling treatment facility and recycling facility, and it is not bulky even if stored, so it is related to recycling Cost can be reduced.

  In addition, this bumper volume reduction machine is equipped with a scraper, which can prevent the bumper from being caught in the roller and reliably discharge the bumper in a flat state. The bumper can be flattened efficiently.

It is sectional drawing of the bumper volume reduction machine in one embodiment of this invention. It is side sectional drawing of the bumper volume reduction machine in one embodiment of this invention. It is a rear view of the bumper volume reduction machine in one embodiment of this invention. It is a front view of the roller of the bumper volume reduction machine in one modification of one embodiment of the present invention. The blade type attached to the bumper when the bumper is flattened with the bumper volume reduction machine of one embodiment was compared with the blade type attached when the bumper was flattened with a roller having blades orthogonal to the rotation direction of the roller. FIG. It is a front view of the roller of the bumper volume reduction machine in the other modification of one embodiment of this invention.

  Hereinafter, embodiments of the present invention shown in the drawings will be described. As shown in FIGS. 1 and 2, a bumper volume reducing machine 1 according to an embodiment of the present invention is disposed in parallel with the housing 2, is rotatably supported, and is accommodated in the housing 2. 2 and a scraper 14 that prevents the bumper B from being wound around one of the rollers 3, and the roller 3 disposed in the upper direction in FIG. 2 is rotated clockwise, and the bumper B inserted between the rollers 3 and 4 is drawn in by rotation of the rollers 3 and 4 from the input side on the left side in FIG. It is flattened into a shape and discharged from the discharge side on the right side in FIG.

  One roller 3 includes a plurality of blades 6 on the outer periphery. In the case of this embodiment, the blades 6 are inclined with respect to the rotation direction and are arranged along the axial direction of the rollers 3. More specifically, the roller 3 includes a rotating shaft 3a and a plurality of blade rings 5 that are annularly provided with blades 6 that are arranged at a predetermined pitch on the outer periphery and are mounted on the outer periphery of the rotating shaft 3a. By inserting the key 3b provided on the rotary shaft 3a into the key groove 5a provided on the inner periphery of the blade ring 5, the blade ring 5 is prevented from rotating with respect to the rotary shaft 3a.

  In this case, 16 blade rings 5 are mounted in a row on the rotary shaft 3a, and these blade rings 5 are sandwiched by bearing portions 10a and 10b of the housing 2 described later in the axial direction. Movement is restricted and integrated with the rotary shaft 3a. Further, one roller 3 is divided into two at the center in the axial direction, and the direction of the inclination with respect to the rotation direction of the blade 6 of the blade ring 5 installed in each of the sections Y and Z is set to be the same direction. And the direction of the inclination of the blade is opposite between the sections Y and Z.

  Thus, since the blade 6 is provided on the roller 3 by mounting the blade ring 5 on the rotary shaft 3a, when the blade 6 is partially deteriorated or damaged, the entire roller 3 is provided. It is sufficient to replace only the blade ring 5 that needs to be replaced instead of replacing the blades, which is economical compared to the case where the blade 6 is directly provided on the roller 3. The number of blade rings 5 can be set arbitrarily by setting the axial width of the blade ring 5, and is not limited to 16 rows.

  In this case, the portion of the other roller 4 facing the blade 6 of the roller 3 is formed in a columnar shape, and when the outermost circumference is closest to the outer edge of the blade 6 of the roller 3, a slight amount is provided between the roller 4 and the blade 6. The gaps are actually opposed to each other through a gap that exceeds 0.0 mm and is 0.5 mm or less. By setting in this way, when the bumper B is sandwiched between the blade 6 of the roller 3 and the outer periphery of the roller 4, the bumper B is provided with a blade shape by the above sandwiching without breaking the bumper B apart. Can do.

  Thus, since one roller 3 is provided with a blade 6 and the other roller 4 is formed in a cylindrical shape without a blade, the bumper B is sandwiched between the blade 6 of the roller 3 and the outer periphery of the roller 4. Therefore, as the pitch, which is the interval between the blades 6 in the blade ring 5, is narrower, the portion where the bumper B is sandwiched is denser and the flattening effect can be enhanced. It should be noted that the larger the number of blades 6 provided on the outer periphery of one blade ring 5, the more advantageous for flattening of the bumper B. However, if the number of blades 6 is excessively increased, the cost increases. It is better to determine the pitch according to the balance. Moreover, it is not necessary to unify the number of the blades 6 in the blade ring 5 so as to be the same.

  The one roller 3 and the other roller 4 are both driven by a motor M. Specifically, the one roller 3 and the other roller 4 are at their ends. One rotation is transmitted to the other by a gear mechanism H constituted by the provided gears 7 and 8, and the motor M can transmit the rotation directly to one end of one roller 3. When the motor M is driven, both the one roller 3 and the other roller 4 can be rotationally driven. The motor M may rotate the other roller 4 or may be connected to one of the rollers 3 and 4 via a speed reducer.

  In this case, when the motor M is driven, the peripheral speed (rotational speed) of the tip of the blade 5 that is the outermost periphery of one roller 3 is equal to the peripheral speed (rotational speed) of the outermost periphery of the other roller 4. The gear ratio of the gear mechanism H may be set by the ratio of the outermost diameter of one roller 3 to the outermost diameter of the other roller 4. The motor M may be an electric motor or a hydraulic motor.

  In this embodiment, the housing 2 is box-shaped and is divided into upper and lower parts so that the upper block 10 that rotatably holds one roller 3 and the other roller 4 can rotate freely. And a lower block 11 that holds the motor M and holds the motor M.

  The block 10 includes a bearing portion 10a that rotatably supports one end of one roller 3, a bearing portion 10b that rotatably supports the other end of the roller 3, and a top plate that connects the bearing portions 10a and 10b. The other block 11 includes a bearing portion 11a that rotatably supports one end of the other roller 4, a bearing portion 11b that rotatably supports the other end of the roller 4, and these bearings. And a bottom plate 11c connecting the portions 11a and 11b.

  These blocks 10 and 11 are hinged at the right end in FIG. 2 which is the back side of the bearing portions 10a and 11a and the right end in FIG. 2 which is the back side of the bearing portions 10b and 11b. It can be swung around two hinge portions 12, and the distance between the rollers 3 and 4 can be adjusted by inserting spacers 13 between the bearing portions 10a and 11a and between the bearing portions 10b and 11b. Can be done. As shown in FIGS. 1 and 2, flanges 10d and 11d are provided on the front side of the bearing portions 10a, 11a, 10b, and 11b, and the flanges 10d and 11d are sandwiched between bolts and nuts. Thus, the postures of the blocks 10 and 11 are fixedly maintained.

  Since the distance between the rollers 3 and 4 can be adjusted as described above, the gears 7 and 8 in the gear mechanism H are preferably involute gears.

  In the bumper volume reducing machine 1 configured in this way, when the motor M is rotated forward, one roller 3 is set clockwise in FIG. 2, and the other roller 4 is counterclockwise in FIG. Thus, when the bumper B is inserted between the rollers 3 and 4 from the left in FIG. 2 along the longitudinal direction, the roller 3 is rotated while the bumper B is pulled between the rollers 3 and 4 by the rotation of the rollers 3 and 4. 4, the bumper B is flattened, and finally, the bumper B flattened from the right side in FIG. 2 can be discharged. When the motor M is rotated in the reverse direction, the bumper B bitten by the rollers 3 and 4 can be discharged from the left to the right, contrary to the above.

  Here, the bumper B has a U-shape in which both ends protrude toward the vehicle body side in order to protect the front portion or the rear portion of the vehicle body from an impact, and the cross-section is also a U-shape. For mounting of lighting equipment and lighting equipment to the bumper B itself, or for taking in air, etc., ribs and complex shaped projections are provided on the inside, and it is made of a resin material with elasticity Therefore, even if a method of rolling with a simple pair of cylindrical rollers is adopted, the original shape is restored by elasticity, and it is difficult to make it sufficiently flat. On the other hand, in the bumper volume reducing machine 1 according to the present embodiment, the blade 6 is provided on one roller 3 and the bumper B is sandwiched between the blade 6 and the outer periphery of the roller 4 so that the bumper B is locally disposed. A large pressure is applied to crush the ribs and protrusions provided on the inside of the bumper B, and an appropriate blade shape is attached to the portion sandwiched between the blades 6 of the bumper B so that the bumper B is elastic due to its original shape. Can be flattened without being restored.

  As described above, the bumper volume reduction machine 1 can flatten the bumper B without cutting it apart, and the flat bumper B can be stacked in layers. It is not bulky and can have good transport efficiency, and since it is flattened in a state where the stamp of the bumper B can be confirmed, the material can be confirmed at the dismantling treatment facility and the recycling facility, and it is bulky even if stored. Because there is no cost for recycling, the cost can be reduced.

  The bumper B can be flattened even when the inside of the bumper B faces the roller 4. However, when the bumper B is inserted between the rollers 3 and 4, the bumper B is moved to the roller 3 side having the blade 6. The blade 6 can be directly applied to a rib or the like provided inside the bumper B and crushed, and the bumper B can be further flattened.

  However, in this case, since the blade 6 is provided on the upper roller 3 in FIG. 1, it is preferable to insert the bumper B vertically between the rollers 3 and 4 from the lower end side. When inserting between 3 and 4, it is good to arrange the roller 3 below the roller 4. Further, in this bumper volume reducing machine 1, the rollers 3 and 4 can be used not only in parallel to the ground but also tilted, and the rotation axes of the rollers 3 and 4 are directed in the vertical direction. That is, it can be used even when FIG. 1 is rotated 90 degrees to the left or right.

  By the way, in the case of this embodiment, the blades 6 provided on the outer periphery of the blade ring 5 are inclined with respect to the rotation direction, and are arranged along the axial direction of the roller 3 so that both ends of the blade 6 of the blade ring 5 are arranged. Is not continuous with the blade 6 of the adjacent blade ring 5, and when the bumper B is crushed as described above, the end of the blade 6 bites into the bumper B, and the bumper B cannot be separated from the blade 6. If this is the case, the bumper B may be caught by the roller 3. Then, if the bumper B is caught by the roller 3, the work must be interrupted and the rollers 3 and 4 should be reversely rotated to remove the bumper B, which burdens the operator and efficiently flattens the bumper B. I can't do that.

  Therefore, in the bumper volume reducing machine 1, among the 16 rows of blade rings 5 in one roller 3, counting from the left in FIG. 3, between the third and fourth, the sixth and seventh. Between the tenth and eleventh, and between the thirteenth and fourteenth, a gap is provided, and a flat scraper 14 is inserted into the gap.

  As shown in FIG. 2, these four scrapers 14 are inserted into the gap between the blade rings 5 so as not to interfere with the rotating shaft 3 a and the other roller 4, and the bumper B is discharged from the outer periphery of the blade ring 5. 2 and 3, the upper ends of the portions protruding from the blade ring 5 are fixed to the holding plate 15 by welding or the like, and this holding plate 15 is a block of the housing 2. It is attached to 10 top plates 10 c via stays 16.

  These scrapers 14 do not hinder the rotation of one of the rollers 3, the arrangement position of the one roller 3 with respect to the rotation shaft 3 a does not change, and the one roller 3 and the other roller 4. The blade ring 5 is retreated downward from the uppermost end in FIG. 2 so as not to disturb the bumper B. Therefore, after the bumper B is pressed by the rollers 3 and 4, even if the blade 6 bites the bumper B and the bumper B is not separated from the blade 6, the roller 3 tries to entrain the bumper B. When the bumper B comes into contact with the scraper 14 due to the rotation of the roller 3 and the roller 3 continues to rotate as it is, the bumper B is peeled off from the roller 3 by the scraper 14, and the winding of the bumper B around the roller 3 is prevented. Bumper B can be reliably discharged outside.

  It is sufficient that at least one scraper 14 is disposed within the width of the bumper B after flattening, and only one scraper 14 may be disposed. However, a plurality of scrapers 14 may be disposed uniformly in the axial direction of the roller 3. By doing so, the certainty of peeling of the bumper B from the roller 3 is improved.

  As described above, in the bumper volume reducing machine 1 according to the present embodiment, the bumper B can be prevented from being caught and the bumper B can be reliably discharged in a flat state, thereby reducing the burden on the operator. The bumper B can be flattened efficiently.

  In the bumper volume reducing machine 1, the blades 6 are arranged side by side along the axial direction of the roller 3, but when the pitch of the blades 6 is wide, as shown in FIG. If the blades 6 of the blade rings 5 adjacent to each other in the axial direction are arranged between the blades 6 and 6 of the other blade ring 5, at least half of the blade rings simultaneously in the short direction of the bumper B When the number of sheets 5 is an odd number, it is possible to press the blades 6 of the blade ring 5 which is half ± 1. Further, the blades 5 of the remaining half are followed by the blades 6 of the blade ring 5. Since the blade 6 crushes the bumper B with an interval narrower than the pitch, it is possible to press the bumper B densely by making the pressing portion in the longitudinal direction of the bumper B narrower than the pitch.

  Note that the blade 6 may be orthogonal to the rotation direction of the roller 3, but by tilting the blade 6 with respect to the rotation direction, compared to the case where the blade 6 is orthogonal to the rotation direction of the bumper B, When viewed, it is possible to reduce the appearance of portions that are not pressed at all, and the bumper B can be more flattened as compared to the above-described embodiment. For example, as shown in FIG. 5, when looking at the blade shape, which is a pressing portion attached to the bumper B when the circumferential interval of the blade 6 and the circumferential interval of the blade orthogonal to the rotation direction are matched, The blade 6 that is inclined in the rotational direction in the short direction can reduce the total length in the longitudinal direction of the portion that is not pressed at all.

  Here, as the inclination angle on the acute angle side intersecting with the rotation direction of the blade 6 approaches 90 degrees, the flatness effect of the bumper B becomes closer to that of the embodiment because it is closer to the embodiment orthogonal to the rotation direction. Also, as the acute angle inclination angle approaches 0 degrees, the bumper B having a U-shaped cross section is less likely to be spread in the short direction, and the flattening effect of the bumper B is reduced. It has been empirically understood that the bumper B can be effectively flattened when the angle is set in the range of about 60 degrees to about 60 degrees.

  Further, in the present embodiment, one roller 3 is divided into two at the center in the axial direction, and the direction of the inclination of the blade 17 of the blade ring 16 installed in each of the sections Y and Z with respect to the rotation direction of the roller. Are set to be in the same direction, and the direction of the blade inclination is opposite between the sections Y and Z, so that when the roller 3 sandwiches the bumper B in cooperation with the roller 4, Since the bumper B tries to escape by the inclination of the blade 6, it is possible to apply the opposite force in the sections Y and Z in the short direction, and therefore, the bumper B is discharged straight forward stably. Thus, the bumper B can be pressed firmly in the short direction.

  As for the peripheral speed of the roller 4, when the peripheral speed of the outer periphery of the roller 4 does not coincide with the peripheral speed of the tip of the blade 6 of the roller 3, the bumper B is caused by the difference in the peripheral speed of the roller 4 and the roller 3. Since it may be difficult to obtain a straight running stability due to dragging, it is preferable to match the peripheral speeds of the outer edges of the rollers 3 and 4.

  Furthermore, in order to move the bumper B straight ahead more stably, as shown in FIG. 6, the outer periphery of the other roller 4 is arranged on the outer periphery along the axial direction at a pitch narrower than the interval in the circumferential direction of the blade 6 of the roller 3. It is preferable to provide the groove 4a.

  In this case, when the roller 3 sandwiches the bumper B in cooperation with the roller 4, even if the bumper B tries to escape due to the inclination of the blade 6, the edge of the groove 4a along the axial direction bites the bumper B. Since the bumper B works to prevent the bumper B from being inclined with respect to the rollers 3 and 4, the bumper B goes straight. Further, since the pitch of the grooves 4a is set to be narrower than the circumferential interval between the blades 6 of the roller 3, the edge of the grooves 4a bites the bumper B more than the opportunity to sandwich the bumper B with the blade 6 of the roller 3. The bumper B can go straight ahead stably.

  The groove 4a functions effectively even when the blade 6 of the roller 3 is orthogonal to the rotation direction, and can improve the straightness of the bumper B.

  This is the end of the description of the embodiment of the present invention, but the scope of the present invention is of course not limited to the details shown or described.

  INDUSTRIAL APPLICABILITY The present invention can be used for a bumper volume reducing machine that flattens a bumper and reduces resource recycling costs.

DESCRIPTION OF SYMBOLS 1 Bumper volume reduction machine 2 Housing 3 One roller 3a Rotating shaft 3b Key 4 The other roller 4a Groove 5 Blade ring 6 Blade 7, 8 Gear 10, 11 Block 10a, 10b, 11a, 11b Bearing part 10c Top plate 10d, 11d Flange 11c Bottom plate 12 Hinge portion 13 Spacer 14 Scraper 15 Holding plate 16 Stay B Bumper H Gear mechanism M Motor Y, Z Classification of rollers

Claims (3)

A pair of rollers that are arranged in parallel and are driven to rotate in opposite directions. The bumper inserted between the rollers from the loading side is pulled in by the rotation of each roller, flattened flat, and discharged from the discharge side. One roller is provided with a rotating shaft and a plurality of blade rings provided with a plurality of blades on the outer periphery and arranged in an axial direction on the outer periphery of the rotation shaft, and the other roller is a blade ring Provided with a cylindrical portion facing the outer periphery, provided a gap between any blades on one roller, and provided a scraper to prevent the bumper from winding around one roller between the gaps and on the discharge side Bumper volume reduction machine. The bumper volume reducing machine according to claim 1, wherein the scraper is a flat plate protruding from between the blade rings toward the discharge side. The circumferential speed of one roller and the circumferential speed of the other roller are made to coincide with each other, and the other roller has an outer periphery of a groove that is installed along the axial direction and at a pitch narrower than the circumferential interval of the blades of one roller. The bumper volume reduction machine according to claim 1, wherein the bumper volume reduction machine is provided.

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