JP5403735B2 - Bumper volume reduction machine - Google Patents

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.

To solve the above object, problem-solving means of the present invention includes a pair of rollers, a bumper volume reduction machine for flat bumper inserted between the pair of rollers,
Each roller has a rotating shaft and a plurality of blade rings that have a plurality of blades on the outer periphery and are arranged in the axial direction on the outer periphery of the rotating shaft, and each blade that is arranged oddly from one end thereof. The blades of the ring are arranged side by side in the axial direction of the roller, and the blades of each blade ring arranged evenly from one end thereof are arranged side by side in the axial direction of the roller .

  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.

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 front view of the roller of the bumper volume reduction machine in one modification of one embodiment of the present invention. It is a front view of the roller of the bumper volume reduction machine in other embodiment of this invention. It is side sectional drawing of the bumper volume reduction machine in other embodiment of this invention. It is the figure which compared the blade type | mold attached to a bumper when a bumper is flattened with the bumper volume reduction machine of one embodiment and the other embodiment. It is a front view of the roller of the bumper volume reduction machine in the modification in other embodiment of this invention. It is a front view of the roller of the bumper volume reduction machine in the other modification of other embodiment of this invention. It is a front view of the roller of the bumper volume reducing machine in another modification of other embodiments of the present invention. It is a front view of the roller of the bumper volume reduction machine in another modification in other embodiments of the present invention. It is a front view of the roller of the bumper volume reducing machine in another embodiment of the present 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 is configured to be driven to rotate counterclockwise, and the roller 4 disposed downward in FIG. 2 is driven to rotate clockwise. It has become.

  One roller 3 includes a plurality of blades 6 on the outer periphery. 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. 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 the case of this embodiment, the blade 6 is orthogonal to the rotational direction, and the blade 6 of each blade ring 5 is formed continuously in the axial direction of the roller 3 to form one large blade. Note that the blade 6 does not necessarily have to be continuous to form a large blade, but by doing so, there is an advantage that the blade separation of the bumper B after biting with the blade 6 can be improved. is there.

  In this case, the other roller 4 has a cylindrical shape, and when the outermost periphery is closest to the outer edge of the blade 6 of the roller 3, a slight gap between the blade 6 and actually 0.0 mm is set. It opposes through the clearance gap exceeding 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.

  Since one roller 3 has a blade 6 and the other roller 4 has 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 so that the bumper B is flattened. Therefore, as the pitch, which is the interval between the blades 6 in the blade ring 5, is narrower, the flattening effect can be enhanced by denser the portion sandwiching the bumper B. 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 the flatness 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 is connected to one end of one roller 3 so that the rotation can be transmitted. 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 to hold one roller 3 rotatably and hold the motor M and the other roller 4. And a block 11 that is rotatably held.

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

  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 as described above, when the motor M is rotated forward, one roller 3 is set counterclockwise in FIG. 2, and the other roller 4 is rotated clockwise 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 substantially 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 elastically shaped. Can be flattened without being restored.

  And, 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 at the time of transportation, it can improve transportation 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 stored. Since it is not bulky, the cost for recycling 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.

  In the bumper volume reducing machine 1, the blades 6 are directed in the same direction, and the blades 6 of the respective blade rings 5 continuously form one large blade in the axial direction of the roller 3. Therefore, when the bumper B is crushed, the end of the blade 6 does not bite the bumper B. Therefore, the blade 6 can be separated after the bumper B is crushed by the blade 6. There is no possibility that the bumper B cannot be discharged due to being caught in.

  As described above, the blades 6 are arranged in a line along the axial direction of the roller 3, but the blades 6 of the respective blade rings 5 arranged oddly from one end of the roller 3 are arranged in the axial direction of the roller 3. If the blades 6 of the blade rings 5 arranged evenly from one end of the roller 3 are arranged side by side in the axial direction of the roller 3, they are inserted between the rollers 3 and 4 along the longitudinal direction. Since the blades 6 can be uniformly applied and crushed at least every other blade ring 5 at the same time in the short direction of the bumper B to be pressed, the bumper B having a U-shaped cross section is surely flattened while being spread in the short direction. be able to.

  When the pitch of the blades 6 provided on the outer periphery of the blade ring 5 is wide, as shown in FIG. 3, the blades 6 of the respective blade rings 5 arranged at odd numbers from one end of the roller 3 are replaced with the rollers 3. The blades 6 of the blade rings 5 arranged evenly from one end of the roller 3 are also arranged side by side in the axial direction of the roller 3, and further adjacent blades in the axial direction of the roller 3. If the blade 6 of the wheel 5 is arranged between the blades 6 and 6 of the other blade wheel 5, when the entire roller 3 is viewed from the axial direction, the circumferential interval between the blades 6 is: When the pitch of the blades 6 of the single blade ring 5 is narrower than that of at least half the number of blade rings 5 at the same time in the short direction of the bumper B and the number of blade rings 5 is an odd number, the blades of the blade ring 5 are ± 1. 6, and about half of the blades 6 of the blade ring 5 are followed by the other half of the blades 6 of the blade ring 5. It means that crush the bumper B with closely spaced than the pitch, the pressing portion in the longitudinal direction of the bumper B can be pressed tightly bumper B is narrower than the pitch. Thus, even if the blade ring 5 having a wide pitch of the blades 6 is used, the bumper B can be sufficiently flattened, and the low-cost blade ring 5 can be used. The manufacturing cost of 1 is reduced.

  Next, the bumper volume reducing machine 14 according to another embodiment will be described. In the bumper volume reduction machine 14 of this other embodiment, the bumper volume reduction machine of the above-described embodiment is provided except that it is inclined with respect to the rotation direction of the blade 17 of one roller 15. 1 is different in detail, and the same configuration as that of the bumper volume reduction machine 1 according to the embodiment is redundantly described. Therefore, only the same reference numerals are given. Detailed description will be omitted.

  As shown in FIGS. 4 and 5, the bumper volume reducing machine 14 according to another embodiment is configured to include a pair of rollers 15 and 4, and the roller 15 disposed upward in FIG. The roller 4 arranged downward in FIG. 5 is driven to rotate clockwise in the clockwise direction.

  One roller 15 includes a plurality of blades 17 inclined on the outer periphery with respect to the rotation direction. More specifically, the roller 15 includes a rotary shaft 15a and a plurality of blade rings 16 that are provided on the outer periphery of the rotary shaft 15a with the blades 17 that are annular and arranged at a predetermined pitch on the outer periphery. By inserting a key 15b provided on the rotary shaft 15a into a key groove 16a provided on the inner periphery of the blade ring 16, the blade ring 16 is prevented from rotating with respect to the rotary shaft 15a. In this case, 16 blade rings 16 are mounted in a row on the rotary shaft 15a, and these blade rings 16 are sandwiched by bearings 10a and 10b of the housing 2 described later in the axial direction. Movement is restricted and integrated with the rotary shaft 15a. Thus, since the blade 6 is provided on the roller 15 by mounting the blade ring 5 on the rotary shaft 3a, when the blade 17 is partially deteriorated or damaged, the entire roller 15 is provided. It is sufficient to replace only the blade ring 16 that needs to be replaced instead of replacing the blades, so that it is more economical than the case where the blades 17 are provided directly on the rollers 15.

  The number of blade rings 16 can be arbitrarily set by setting the axial width of the blade ring 16, and is not limited to 16 rows. Further, tilting in the rotational direction means that the blade 17 is not orthogonal to or parallel to the rotational direction which is the vertical direction in FIG. It has been empirically found that the acute angle when intersecting the direction should be set in the range of about 20 to 60 degrees.

  In this case, the blades 17 are set to have the same inclination, and the blades 17 of the respective blade rings 16 are continuously formed in the axial direction of the roller 15 to form one large blade. The blade 17 does not necessarily have to be continuous to form a large blade, but by doing so, there is an advantage that the blade separation of the bumper B after biting by the blade 17 can be improved. is there.

  Also in this embodiment, when the outermost circumference of the other roller 4 is closest to the outer edge of the blade 17 of the roller 15, a slight gap is formed between the blade 17 and more than 0.0 mm and 0.5 mm or less. When the bumper B is sandwiched between the blade 17 of the roller 15 and the outer periphery of the roller 4, the bumper B can be broken apart by being set in this manner. It is the same as the above that the blade shape can be attached to the bumper B by the above sandwiching.

  In addition, the narrower the pitch, which is the interval between the blades 17 in the blade ring 16, can increase the flattening effect by making the portion sandwiching the bumper B dense, and the number of blades 17 provided on the outer periphery of one blade ring 16 is large. Although it is advantageous for the flatness of the bumper B, the pitch should be determined in consideration of the cost. Further, the number of the blades 17 in the blade ring 16 does not necessarily have to be unified so as to be the same.

  Further, the blades 17 of the respective blade rings 16 arranged at odd numbers from one end of the roller 15 are arranged side by side in the axial direction of the roller 15, and the blades arranged at even numbers from one end of the roller 15. The blades 17 of the ring 16 are also arranged side by side in the axial direction of the roller 15. Note that the blades 17 are arranged side by side in the axial direction of the roller 15, an arbitrary one is selected from the odd-numbered or even-numbered grouped blade rings 16, and the roller of the blade 17 of the selected blade ring 16 is selected. The blades 17 of the other blade rings 16 belonging to the same group always fall within the projected width in the axial direction of 15 and within the range formed by extending the vertical width of the blade 17 in the axial direction of the roller 15 in FIG. It means to exist.

  More specifically, when the blade 17 that appears second from the uppermost blade ring 16 in FIG. 4 is selected from among the blade rings 16 constituting the odd-numbered group, the vertical direction of the blade 17 in FIG. The blades 17 of the other blade rings 16 in the same odd-numbered group exist within the projected width formed by extending the width in the axial direction of the roller 15. Therefore, not only all the blades 17 in the group are arranged side by side in the axial direction of the roller 15 with the upper and lower ends in the same position in FIG. 1, but the deviation of the blades 17 is limited to the above conditions. Permissible. In addition, the blades 17 of the odd-numbered blade rings 16 and the blades 17 of the even-numbered blade wheels 16 are not prevented from being arranged in the axial direction of the roller 15.

  In the case of this embodiment, since the pitch of the blades 17 formed on the blade ring 16 is set to be equal to or smaller than the vertical width of the blade 17, when the blade 17 of one blade ring 16 is selected, the blade 17 The blades 17 of all the other blade rings 16 are arranged within the projected width of, and the number of places that can be simultaneously crushed when the bumper B is sandwiched between the blade 17 and the outer periphery of the roller 4 increases the flatness ability. .

  The one roller 15 and the other roller 4 are both driven by a motor M, and one rotation is transmitted to the other by a gear mechanism H, so that the bumper of the above-described embodiment is provided. As with the volume reducer 1, both can be driven to rotate by the motor M.

  Even in the bumper volume reducing machine 14 configured as described above, the bumper B is sandwiched between the blade 17 of the roller 15 and the outer periphery of the roller 4 so that a large pressure is applied to the bumper B locally. In addition to crushing the ribs and protrusions provided on the inside, and attaching an appropriate blade shape to the part sandwiched by the blade 17 of the bumper B, the bumper B can be flattened without being restored to its original shape by elasticity. it can.

  Therefore, even in this bumper volume reducing machine 14, the bumper B can be flattened without being cut apart, and the flattened bumper B can be stacked in layers. It is not bulky at the time of transportation, it can improve transportation 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 stored. Therefore, the cost for recycling can be reduced.

  In addition, since the blades 17 are inclined with respect to the rotation direction, even if the circumferential interval between the blades 17 is set to be the same as the circumferential interval between the blades 6 according to the embodiment, Compared to the bumper volume reducing machine 1 of the embodiment, when viewed from the short side of the bumper B, it is possible to reduce the appearance of a portion that is not pressed at all, and the bumper B is compared to the above-described embodiment. It can flatten more reliably. For example, as shown in FIG. 6, when looking at the blade shape, which is a pressing portion attached to the bumper B when the circumferential interval of the blades 17 and the circumferential interval of the blades 6 orthogonal to the rotation direction are matched, the bumper B In the blade 17 that is inclined in the rotational direction in the short direction, the blade mold of the blade 6 indicated by a broken line is formed with a circumferential interval, compared to the fact that there is no portion that is not pressed at all. The above-mentioned place will be understood from the appearance of a part without a part.

  Here, as the inclination angle on the acute angle side that intersects the rotation direction of the blade 17 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 is empirically understood that the bumper B can be effectively flattened when the angle is set within a range of about 60 to 60 degrees.

  The bumper B can be flattened even when the inside of the bumper B faces the roller 15. However, when the bumper B is inserted between the rollers 15 and 4, the bumper B is moved toward the roller 15 with the blade 17. It is the same as above that the bumper B can be more easily flattened by facing the inside.

  In the bumper volume reducing machine 14, the blades 17 of the respective blade rings 16 arranged oddly from one end of the roller 15 are arranged side by side in the axial direction of the roller 15, and even from the one end of the roller 15. Since the blades 17 of the respective blade rings 16 arranged in the second position are arranged side by side in the axial direction of the roller 15, at least the blade ring in the short direction of the bumper B inserted between the rollers 15 and 4 along the longitudinal direction. The blades 17 can be uniformly applied to every other 16 and crushed at the same time, and the bumper B having a U-shaped cross section can be flattened while being spread in the short direction.

  Further, in the case of this embodiment, the blades 17 are set to have the same inclination, and the blades 17 of the respective blade rings 16 continuously form one large blade in the axial direction of the roller 3. When the bumper B is crushed, the end of the blade 17 does not bite the bumper B. Therefore, the blade 17 is well separated after the bumper B is crushed by the blade 17, and the bumper B is wound by the roller 15. There is no possibility that the bumper B cannot be discharged.

  When the pitch of the blades 17 provided on the blade ring 16 is wide, as shown in FIG. 7, the blades 17 of the blade ring 16 adjacent in the axial direction of the roller 15 are replaced with the blades 17 of the counterpart blade ring 16. If the number of blade rings 16 is an odd number, the blades 17 of the blade rings 16 are pressed against each other at least half in the short direction of the bumper B. Furthermore, since about half of the blades 17 of the blade ring 16 and then the remaining half of the blades 17 of the blade ring 16 crush the bumper B with an interval narrower than the pitch, It is possible to press the bumper B densely by making the pressing portion with respect to the longitudinal direction narrower than the pitch.

  As described above, the bumper volume reducing machine 14 can flatten the bumper B without cutting it apart, but as described above, the bumper B has ribs or protrusions inside the bumper B. And the cross section is U-shaped, so even if the bumper B is inserted between the rollers 3 and 4 in the rotational direction, the bumper B is sandwiched between the rollers 3 and 4 and sent to the back side. In some cases, the roller 3 or 4 may tilt or meander with respect to the rollers 3 and 4 and may not move straight.

  Therefore, in addition to being able to flatten the bumper B, as shown in FIGS. 8 and 9, in order to make the bumper B go straight in a stable manner, one roller 3 is divided into two at the center in the axial direction. The direction of the inclination of the blade ring 16 of the blade ring 16 installed in Z with respect to the rotation direction of the roller is set to be the same direction, and the direction of the inclination of the blade is opposite between the sections Y and Z. It is good to keep.

  8 shows that the blade 17 is continuous and forms a large blade on the roller 15, and FIG. 9 shows that the blade 17 is disposed between the adjacent blade rings 16 in the axial direction of the roller 15. It has become so.

  By doing so, when the roller 15 sandwiches the bumper B in cooperation with the roller 4, the bumper B tries to escape by the inclination of the blade 17. A force can be applied, and therefore, the bumper B is stably discharged straight and discharged, and the bumper B can be firmly pressed 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 17 of the roller 15, the bumper B is caused by the difference in the peripheral speed of the roller 4 and the roller 15. Since it may not be possible to obtain stable straight-ahead movement due to dragging, it is preferable to match the peripheral speeds of the outer edges of the rollers 15 and 4.

  In FIG. 8, the blade 17 continuously forms one blade on the roller 15, so that even if the bumper B is bitten, the blade is separated and the winding by the roller 15 is prevented. be able to.

  Further, in order to make the bumper B go straight in a stable manner, as shown in FIG. 10, 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 17 of the roller 15. A groove 4a may be provided.

  In this case, when the roller 15 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 17, the edge of the groove 4a along the axial direction bites the bumper B. Since the bumper B works to suppress the inclination of the rollers 15 and 4 with respect to the rollers 15 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 17 of the roller 15, the edge of the grooves 4a bites the bumper B more than the opportunity to sandwich the bumper B with the blades 17 of the roller 15. The bumper B can go straight ahead stably. Further, the groove 4a functions effectively even when the roller blades are orthogonal to the rotation direction, and the straightness of the bumper B can be improved.

  In addition, in the place mentioned above, although the blade 17 is applied to the bumper volume reduction machine 14 inclined in the rotation direction, even if the roller 4 with the groove 4a is applied to the roller 3 of the embodiment, Bumper B can achieve stable straightness. However, since the bumper B may be dragged due to the difference in the peripheral speed between the roller 4 and the roller 15 and a stable linearity may not be obtained, the peripheral speed of the outer periphery of the roller 4 and the peripheral speed of the tip of the blade 17 of the roller 15 Should match.

  Furthermore, in addition to being able to flatten the bumper B, the bumper B can be moved straight in a stable manner in the axial direction on one roller 3 as in the bumper volume reduction machine of another embodiment shown in FIG. Of the blade rings 20 to be formed, two adjacent blade rings 20 and 20 are taken as one set, and the blades 21 and 21 of each blade ring 20 and 20 forming the set are continuously formed to form one angled blade 22. You may make it do. In addition, although a chevron blade may be provided in a single blade ring, in this case, a chevron blade is formed by combining two blade wheels 20 each having an oblique blade 21 inclined with respect to the axial direction. The slanted blade 21 can be easily created as compared with the angled blade 21 and the manufacturing cost can be reduced.

  In the bumper volume reducing machine according to another embodiment, the blades 22 are angled so that they are inclined with respect to the rotational direction, as in the other embodiments. Is set to be the same as the circumferential interval between the blades 6 of the embodiment, but when viewed from the short side of the bumper B compared to the bumper volume reduction machine 1 of the embodiment described above. In addition, 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 with the above-described embodiment.

  Furthermore, the blade 22 is set in a chevron shape whose top is directed in the rotation direction, so that when one roller 19 sandwiches the bumper B in cooperation with the other roller 4, the bumper B is sandwiched by the chevron of the blade 22. Since each part of the ridge tries to escape in the opposite direction from the top of the mountain, it is possible to apply an opposite force in the short direction with each of the ridges, so that the bumper B is stable. As a result, the bumper B can be firmly pressed in the short direction.

  Further, in the case of this embodiment, the top portion of the blade 22 faces the rotation direction, and when the one rotor 19 is rotated in the forward direction, the top portion comes into contact with the bumper B first. The ends of the blades 21 and 21 are brought into contact with each other without leaving a gap at the top of the blade 22, and the ends of the blades 21 and 21 bit the bumper B when the top crushes the bumper B. Therefore, there is no possibility that the bumper B can be discharged after the bumper B is crushed, and the bumper B is caught by the one roller 19 and cannot be discharged.

  Returning, in this bumper volume reducing machine of another embodiment, the chevron blades 22 formed by the odd-numbered blade rings 20 and 20 from one end of one roller 19 are arranged in the axial direction of one roller 19. The angle-shaped blades 22 formed by the even-numbered blade rings 20 and 20 from one end of one roller 19 are arranged side by side in the axial direction of one roller 19 and are odd in the axial direction of one roller 19. Arranged between the second set of chevron blades 22. That is, the chevron blades 22 formed by the even-numbered blade rings 20 and 20 are disposed between the odd-numbered chevron blades 22 in the axial direction of the one roller 19.

  By doing in this way, when the whole one roller 19 is seen from an axial direction, the space | interval of the circumferential direction between the blades 22 is the blade 22 formed with the blades 21 and 21 of the single blade ring 20 and 20. FIG. Therefore, the bumper B can be pressed densely.

  Note that the inclination angle of the blade 21 may be set in a range of about 20 degrees to 60 degrees, as in the other embodiments described above. Further, even in the bumper volume reducing machine of this other embodiment, it is preferable that the peripheral speed of the outer periphery of the other roller 4 and the peripheral speed of the tip of the blade 22 of one roller 19 are matched. The roller 4 may be provided with a groove as shown in FIG.

  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.

1,14 Bumper volume reduction machine 2 Housing 3, 15, 19 One roller 3a, 15a Rotating shaft 3b, 15b Key 4 The other roller 4a Groove 5, l6, 20 Blade ring 6, 17, 21, 22, Blade 7, 8 Gears 10, 11 Blocks 10a, 10b, 11a, 11b Bearing portion 10c Top plate 10d, 11d Flange 11c Bottom plate 12 Hinge portion 13 Spacer B Bumper H Gear mechanism M Motor Y, Z Classification of rollers

Claims (9)

A bumper volume reducing machine comprising a pair of rollers and flattening a bumper inserted between the pair of rollers,
Each roller has a rotating shaft and a plurality of blade rings that have a plurality of blades on the outer periphery and are arranged in the axial direction on the outer periphery of the rotating shaft, and each blade that is arranged oddly from one end thereof. A bumper volume reduction machine characterized in that the blades of the ring are arranged side by side in the axial direction of the roller, and the blades of each blade ring arranged evenly from one end thereof are arranged in the axial direction of the roller. .
  The bumper volume reducing machine according to claim 1, wherein the blade is inclined with respect to the rotation direction of the one roller. One roller is divided into two at the center in the axial direction, and the direction of the inclination of the blade ring installed in each section with respect to the rotation direction of the roller is set to be the same direction, and between the sections The bumper volume reduction machine according to claim 1 or 2, wherein the direction of inclination of the blade is opposite . The bumper volume reducing machine according to any one of claims 1 to 3, wherein blades of blade rings adjacent in the axial direction of one roller are disposed between blades of the other blade ring . The bumper volume reduction machine according to claim 2 , wherein the blade has a chevron shape . One roller includes a rotation 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 adjacent two rows of blade rings are set as one set. 6. The bumper volume reduction machine according to claim 5 , wherein the blades of each of the blade rings are made continuous to form one chevron blade . Angle-shaped blades formed by odd-numbered blade rings from one end of one roller are arranged in the axial direction of the roller, and angle-shaped blades formed by even-numbered blade rings from one end of the roller are roller shafts 7. The bumper volume reduction machine according to claim 6 , wherein the bumper volume reduction machine is arranged between the odd-numbered pairs of chevron blades in the axial direction of the roller while being arranged side by side in the direction . The bumper volume reduction machine according to any one of claims 1 to 4, wherein the peripheral speed of the other roller and the peripheral speed of the one roller coincide with each other . The other roller is provided with grooves on the outer periphery along the axial direction and installed at a pitch narrower than the circumferential interval between the blades of the one roller. Bumper volume reduction machine.

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