JP5938490B1 - Solidification material unraveling device - Google Patents

Abstract

The present invention provides a solidified material loosening device that can reliably loosen even a lump made of a powdery or granular material having high elasticity. In a solidifying material loosening apparatus having an upper surface roller and a lower roller for pressing and conveying a bag containing a mass of accumulated objects, the surface intersecting the bag conveying direction. A solidifying material loosening device comprising: a plurality of rotatable side rollers that are opposed to each other in a direction to be pressed and that press a bag pressed by the upper roller and the lower roller from the side. [Selection] Figure 2

Description

  The present invention relates to a solidifying material loosening device that presses a bag containing a lump composed of a powdery or granular material and loosens the lump.

  In general, bags containing powdered or granular materials such as salt, citric acid, boric acid and resin pellets are stacked and stored in a warehouse until used. In many cases, the material in the bag becomes a mass due to moisture absorption or compression during storage, in other words, solidifies. When using the material in a bag, it is necessary to loosen the solidified lump beforehand and to return it to a powder form or a granular form.

  In the material solidification eliminating apparatus described in Patent Document 1, the bag is narrowed by roll members arranged above and below. Irregularities are formed on the surface of the roll member, and the convex portion of one roll member is arranged at a position corresponding to the concave portion of the other roll member. Therefore, pressure acts on the lump between the convex part and the concave part, and the lump is loosened.

JP-A-9-29178

  When a bag containing a material having high elasticity (for example, resin pellets) is narrowed by roll members arranged above and below, pressure acts on the mass located at the center of the bag, and the mass is loosened. However, part of the mass may move to the side due to its elastic force and may not be unraveled.

  The present invention has been made in view of such circumstances, and provides a solidified material unraveling apparatus that can reliably unravel even a lump composed of a powdery or granular material having high elasticity. With the goal.

The solidifying material loosening apparatus according to the present invention is a solidifying material loosening apparatus comprising an upper roller and a lower roller that are formed with irregularities on the surface and convey a bag containing a lump formed by collecting objects. A plurality of rotatable side rollers that are opposed to each other in a direction crossing the bag conveyance direction and that press the bag pressed by the upper roller and the lower roller from the side to loosen the lump in the bag. It is characterized by providing.
The solidifying material unwinding device according to the present invention has a roller support portion that supports the side roller and an opposing direction of the side roller as an axial direction, one end portion connected to the roller support portion, and a male screw portion at the other end portion. And a male screw portion projecting through the shaft, and is arranged around the shaft between the adjustment plate for adjusting the facing direction position of the side roller and the adjustment plate and the roller support portion. One end of the push spring, the first nut threadedly engaged with the male threaded portion, the adjusting plate, and a cutting bolt with the opposing direction as an axial direction, and the other end of the cutting bolt It is provided with the support part to support, and the 2nd nut screwed together by the one end part of the said cutting bolt.

  In this invention, a side roller presses the lump which moved to the side by the press of an upper side roller and a lower side roller.

  The solidifying material loosening device according to the present invention includes a motor that rotates the side roller.

  In the present invention, the bag is smoothly conveyed by rotating the side roller together with the rotation of the upper roller and the lower roller.

  The solidifying material loosening device according to the present invention is characterized in that the drive of the motor is controlled so that the peripheral speed of the side roller is synchronized with the peripheral speed of the upper roller and the lower roller.

  In the present invention, bag breaking is prevented by synchronizing the peripheral speed of the side rollers with the peripheral speed of the upper roller and the lower roller.

  The solidifying material loosening device according to the present invention includes a plurality of roller units each having the upper roller and the lower roller, and the roller units are arranged in parallel in the transport direction, and the side rollers are arranged in the transport direction of the roller unit. It is arranged between them.

  In the present invention, the lump is more reliably loosened by providing a plurality of roller units.

  In the solidifying material loosening device according to the present invention, since the side roller presses the lump that has moved to the side by the pressing of the upper roller and the lower roller, a powdery or granular material (for example, resin pellets) with high elasticity ) Can be reliably loosened even if it is contained in a bag.

It is a left view which outlines a solidification material loosening apparatus. It is a top view which shows schematically the solidification material loosening apparatus. FIG. 4 is a partially enlarged left side view schematically showing a first roller unit. FIG. 6 is a partially enlarged left side view schematically showing a second roller unit. FIG. 4 is a partially enlarged left side view schematically showing a side roller unit. It is a partial enlarged plan view which shows a side roller unit schematically. It is sectional drawing which made the VII-VII line of FIG. 6 the cutting line. FIG. 6 is a partially enlarged plan view schematically showing a side roller unit of a solidifying material loosening apparatus according to a second embodiment.

  Hereinafter, the present invention will be described with reference to the drawings showing a solidifying material loosening apparatus according to an embodiment. FIG. 1 is a left side view schematically showing the solidifying material loosening device, and FIG. 2 is a plan view schematically showing the solidifying material loosening device. In the following description, the top, bottom, left and right, and front and back shown in the figure are used.

  The solidifying material loosening device includes a rectangular frame 1 that is long in the front-rear direction. Legs 1a mounted on the installation surface are provided at the four corners of the frame body 1 so as to be rotatable up and down. A caster 1b is provided in the vicinity of the leg 1a. When the leg 1a is rotated upward and separated from the installation surface, the solidifying material unwinding device can be moved by the caster 1b.

  The support bar 2 protrudes upward from each of the front end portion and the rear end portion of the frame body 1. At the center in the front-rear direction of the frame body 1, a rectangular support frame 3 protruding upward is provided on each of the left side portion and the right side portion of the frame body 1. Inside the support frame 3, two support columns 4, 4 extending vertically are arranged side by side. The support column 4 connects the upper portion of the support frame 3 and the frame body 1.

  The front upper portions of the left and right support frames 3 and 3 are connected by a connecting rod 5. The upper rear portions of the left and right support frames 3 and 3 are connected by a connecting rod 5.

  The front conveyor 6 is supported by the front support bar 2 and the support frame 3. The front conveyor 6 is supported by a frame portion 6b that is long in the front-rear direction and is rotatably supported by the frame portion 6b, and has a plurality of rollers 6a, 6a,. The plurality of rollers 6a are juxtaposed in the front-rear direction.

  The rear conveyor 8 is supported by the rear support rod 2 and the support frame 3. The rear conveyor 8 is supported by a frame portion 8b that is long in the front-rear direction and is rotatably supported by the frame portion 8b, and has a plurality of rollers 8a, 8a,. The plurality of rollers 8a are juxtaposed in the front-rear direction. A position sensor 80 for detecting the position of the bag is provided on the right side of the rear conveyor 8. The method of the position sensor 80 is not limited, and examples of the method of the position sensor 80 include a photoelectric method, an ultrasonic method, and a contact method.

  Between the front conveyor 6 and the rear conveyor 8, the belt conveyor 7, the first roller unit 10, the intermediate conveyor 9, and the second roller unit 20 are supported by the support frame 3. The front part of the belt conveyor 7 is adjacent to the rear part of the front conveyor 6. The rear part of the belt conveyor 7 is connected to the front part of the support frame 3. The belt conveyor 7 includes two pulleys 7a and 7a that are spaced apart from each other in the front-rear direction, and a belt 7b that is hung on both pulleys 7a and 7a.

  The front portion of the first roller unit 10 is adjacent to the belt conveyor 7. The rear part of the second roller unit 20 is adjacent to the rear conveyor 8. An intermediate conveyor 9 is provided between the rear part of the first roller unit 10 and the front part of the second roller unit 20.

  FIG. 3 is a partially enlarged left side view schematically showing the first roller unit 10. The first roller unit 10 is provided between the front portion of the support frame 3 and the front support column 4 and includes a rotatable upper roller 11 and a lower roller 12 that are arranged vertically. The upper roller 11 and the lower roller 12 have the left-right direction as the rotation axis direction.

  A guide 19 that guides the upper roller 11 from the front portion and the front column 4 of the support frame 3 protrudes rearward and forward. The guides 19 and 19 are long vertically.

  On the rear side of the belt conveyor 7, a lower bearing 13 whose axial direction is the left-right direction is fixed to the support frame 3 and the column 4. The lower roller 12 is rotatably supported by the lower bearing 13. A plurality of convex portions 12 a, 12 a,..., 12 a are formed on the outer peripheral surface of the lower roller 12. On the outer peripheral surface of the lower roller 12, a concave portion 12b is formed between adjacent convex portions 12a and 12a. A rotating disk 13 a is coaxially provided at the end of the lower roller 12.

  A receiving portion 14 for receiving the upper bearing 15 is provided on the upper side of the lower bearing 13. An upper bearing 15 is provided on the upper side of the receiving portion 14 with the left-right direction being the axial direction. The guide 19 described above is located in front of and behind the upper bearing 15. The upper bearing 15 has a vertically extending engagement groove (not shown) that is slidably engaged with the guide 19. The upper bearing 15 is guided in the vertical direction by a guide 19.

  The upper roller 11 is rotatably supported by the upper bearing 15. A plurality of convex portions 11 a, 11 a,..., 11 a are formed on the outer peripheral surface of the upper roller 11. On the outer peripheral surface of the upper roller 11, a recess 11b is formed between the adjacent protrusions 11a and 11a. A rotating disk 15 b is coaxially provided at the end of the upper roller 11.

  On the upper part of the upper bearing 15, a spring receiver 15a for receiving a later-described pressing spring 16 is provided. Above the upper bearing 15, a nut portion 18 whose axial direction is the vertical direction passes through the upper portion of the support frame 3. A screw cylinder 17 having a screw groove on the outer peripheral surface is screwed onto the nut portion 18. A spring receiver 17 a for receiving a later-described pressing spring 16 is provided at the lower end portion of the screw cylinder 17.

  A pressing spring 16 is provided between the spring receiver 17 a of the screw cylinder 17 and the spring receiver 15 a of the upper bearing 15. An adjustment wheel 17 b for adjusting the urging force from the pressing spring 16 to the upper bearing 15 is provided at the upper end portion of the screw cylinder 17. By rotating the adjustment wheel 17b, the screw cylinder 17 moves up and down, and the magnitude of the urging force can be adjusted.

  When the bag is conveyed between the upper roller 11 and the lower roller 12, the urging force of the pressing spring 16 acts on the bag from the upper roller 11, and the upper roller 11 and the lower roller 12 press the bag. When a reaction force larger than the urging force of the pressing spring 16 and the weight of the upper roller 11 acts on the upper roller 11 from the bag, the upper roller 11 moves upward, the pressing spring 16 bends and imparts an appropriate force to the bag. can do.

  A motor 40 is provided at the front portion of the frame body 1. A pulley 40 a is provided on the rotating shaft of the motor 40. At the front part of the support frame 3, an upper rotary plate 41 and a lower rotary plate 43 are provided in parallel. The upper rotating disk 41 and the lower rotating disk 43 have the left-right direction as the rotation axis direction. Spur gears (not shown) with the left-right direction as the rotation axis direction are provided on each of the upper rotating disc 41 and the lower rotating disc 43, and the respective spur gears are engaged with each other. An endless transmission 47 having a line shape or a belt shape is hung on the rotating plate 40 a of the motor 40 and the pulley 7 a on the rear side of the belt conveyor 7.

  An endless transmission portion 42 having a line shape or a belt shape is hung on the rotating plate 40 a and the lower rotating plate 43 of the motor 40. An endless transmission 45 having a line or band shape is hung on the upper rotating disk 41 and the rotating disk 15b of the upper roller 11, and a line or a band shape is formed on the lower rotating disk 43 and the rotating disk 13a of the lower roller 12. An endless transmission portion 46 is hung.

  The belt conveyor 7 is driven by the drive of the motor 40 and conveys the bag placed on the belt conveyor 7. Further, the lower roller 12 is rotated via the lower rotating disk 43 by driving the motor 40. The lower rotating disk 43 rotates, the upper rotating disk 41 rotates through the spur gear, and the upper roller 11 rotates. The upper roller 11 and the lower roller 12 rotate so that the convex portion 11a of the upper roller 11 meshes with the concave portion 12b of the lower roller 12, and the convex portion 12a of the lower roller 12 meshes with the concave portion 11b of the upper roller 11. Examples of the above-described rotating disks 13a, 15b, 40a, upper rotating disk 41, and lower rotating disk 43 include pulleys or sprockets, and the transmission units 42 and 44 to 47 include, for example, belts or sprockets corresponding to the pulleys. The corresponding chain is mentioned.

  FIG. 4 is a partially enlarged left side view schematically showing the second roller unit 20. The second roller unit 20 is provided between the rear portion of the support frame 3 and the rear support column 4, and includes a rotatable upper roller 21 and a lower roller 22 arranged vertically. The upper roller 21 and the lower roller 22 have the left-right direction as the rotation axis direction.

  A guide 29 that guides the upper roller 21 protrudes forward and backward from each of the rear portion and the rear column 4 of the support frame 3. The guides 29 and 29 are long vertically.

  On the front side of the rear conveyor 8, a lower bearing 23 whose axial direction is the left-right direction is fixed to the support frame 3 and the support column 4. The lower roller 22 is rotatably supported by the lower bearing 23. A plurality of convex portions 22 a, 22 a,..., 22 a are formed on the outer peripheral surface of the lower roller 22. On the outer peripheral surface of the lower roller 22, a recess 22b is formed between the adjacent protrusions 22a and 22a. A rotating disk 23 is coaxially provided at the end of the lower roller 22.

  A receiving portion 24 that receives the upper bearing 25 is provided above the lower bearing 23. On the upper side of the receiving portion 24, an upper bearing 25 is provided in which the left-right direction is the axial direction. The guide 29 described above is positioned in front of and behind the upper bearing 25. The upper bearing 25 has an engaging groove (not shown) extending vertically to engage the guide 29 slidably. The upper bearing 25 is guided in the vertical direction by a guide 29.

  The upper roller 21 is rotatably supported by the upper bearing 25. A plurality of convex portions 21 a, 21 a,..., 21 a are formed on the outer peripheral surface of the upper roller 21. On the outer peripheral surface of the upper roller 21, the convex portion 21 a is disposed obliquely so as to intersect the axis. On the outer peripheral surface of the upper roller 21, a recess 21b is formed between the adjacent protrusions 21a and 21a. A rotary disc 25 b is coaxially provided at the end of the upper roller 21.

  A spring receiver 25 a that receives a later-described push spring 26 is provided on the upper portion of the upper bearing 25. Above the upper bearing 25, a nut portion 28 whose axial direction is the vertical direction passes through the upper portion of the support frame 3. A screw cylinder 27 having a screw groove on the outer peripheral surface is screwed onto the nut portion 28. A spring receiver 27 a that receives a later-described pressing spring 26 is provided at the lower end portion of the screw cylinder 27.

  A push spring 26 is provided between the spring receiver 27 a of the screw cylinder 27 and the spring receiver 25 a of the upper bearing 25. An adjustment wheel 27 b that adjusts the urging force from the push spring 26 to the upper bearing 25 is provided at the upper end of the screw cylinder 27. By rotating the adjustment wheel 27b, the screw cylinder 27 moves up and down, and the magnitude of the urging force can be adjusted.

  When the bag is conveyed between the upper roller 21 and the lower roller 22, the urging force of the pressing spring 26 acts on the bag from the upper roller 21, and the upper roller 21 and the lower roller 22 press the bag. When a reaction force larger than the urging force of the pressing spring 26 acts on the upper roller 21 from the bag, the upper roller 21 moves upward, the pressing spring 26 bends, and an appropriate force can be applied to the bag.

  A motor 50 is provided at the rear of the frame 1. A rotating disk 50 a is provided on the rotating shaft of the motor 50. The upper rotating plate 51 and the lower rotating plate 53 have the left-right direction as the rotation axis direction. Spur gears (not shown) with the left-right direction as the rotation axis direction are provided on each of the upper rotating disc 51 and the lower rotating disc 53, and the respective spur gears are engaged with each other. At the rear part of the support frame 3, there are provided an upper rotating disk 51 and a lower rotating disk 53 arranged side by side in the vertical direction.

  An endless transmission section 54 that is in the form of a line or a band is hung on the rotating disk 50 a and the lower rotating disk 53 of the motor 50. An endless transmission portion 55 that forms a line or a belt is hung on the upper rotating disk 51 and the rotating disk 25b of the upper roller 21, and a line or a band is formed on the lower rotating disk 53 and the rotating disk 23 of the lower roller 22. An endless transmission portion 56 is hung.

  The lower roller 22 rotates through the lower rotating disk 53 by driving the motor 50. The lower rotating disk 53 rotates, the upper rotating disk 51 rotates through the spur gear, and the upper roller 21 rotates. The upper roller 21 and the lower roller 22 rotate so that the convex portion 21a of the upper roller 21 is engaged with the concave portion 22b of the lower roller 22 and the convex portion 22a of the lower roller 22 is engaged with the concave portion 21b of the upper roller 21. Examples of the rotary plates 23a, 25b, and 50a, the upper rotary plate 51, and the lower rotary plate 53 include a pulley or a sprocket. The corresponding chain is mentioned.

  As shown in FIG. 2, between the first roller unit 10 and the second roller unit 20, an intermediate conveyor 9 having smaller left and right dimensions than the front conveyor 6 and the rear conveyor 8 is provided. The intermediate conveyor 9 is arranged side by side, and has a plurality of rollers 9a, 9a,. Side roller units 30 are provided on the left and right sides of the intermediate conveyor 9.

  5 is a partially enlarged left side view schematically showing the side roller unit 30, FIG. 6 is a partially enlarged plan view schematically showing the side roller unit 30, and FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. It is. FIG. 6 shows the side roller unit 30 arranged on the right side, and a part of the side roller unit 30 is shown in cross section for easy understanding.

  The side roller unit 30 is fixed to each of the front and rear support columns 4, 4, and includes a bar-shaped support portion 31 that extends in the vertical direction and supports the cutting bolt 32. The support part 31 fixed to the front column 4 protrudes backward, and the support part 31 fixed to the rear column 4 protrudes forward.

  A through hole (not shown) penetrating in the left-right direction is provided in the upper end portion and the lower end portion of the support portion 31. A cutting bolt 32 is inserted into the through hole. The dimensioning bolt 32 has an axial direction in the left-right direction. A nut 31 a is screwed to the dimensioning bolt 32 on each of the right side and the left side of the support portion 31. The two nuts 31a and 31a fasten the support portion 31 from the left and right via a washer 31b. The dimensioning bolt 32 is fixed to the support portion 31 by tightening the nuts 31a and 31a.

  The side roller unit 30 includes an adjustment plate 33 that adjusts the left and right positions of side rollers 39 to be described later. The adjustment plate 33 extends in the front-rear direction and the up-down direction. Through holes (not shown) are provided above and below the front edge and above the rear edge of the adjustment plate 33. The end of the cutting bolt 32 (the left end shown in FIG. 6) located on the opposite side of the intermediate conveyor 9 is inserted into the through-hole, and the adjustment plate 33 faces the two support portions 31, 31. doing.

  Nuts 33a are screwed on the right and left sides of the adjustment plate 33, respectively. The two nuts 33a and 33a fasten the adjustment plate 33 from the left and right via washers 33b and 33b. The adjustment plate 33 is fixed to the cutting bolt 32 by tightening the nuts 33a and 33a.

  A through-hole 33c penetrating in the left-right direction is provided above and below the central portion of the adjustment plate 33 in the front-rear direction. In each of the through holes 33c and 33c, a sliding shaft 34 that slides inside a sliding bush 37 described later is inserted. At the end of the sliding shaft 34 on the intermediate conveyor 9 side (the right side shown in FIG. 6), a roller support portion 38 that supports a side roller 39 described later is provided.

  As shown in FIG. 7, when viewed from the front-rear direction, the roller support portion 38 has a six-letter shape. The roller support portion 38 is positioned between the long plate portion 38a extending vertically, the protruding plates 38b and 38b protruding from the upper and lower ends of the long plate portion 38a toward the intermediate conveyor 9, and the protruding plates 38b and 38b. And a support plate portion 38c protruding toward the intermediate conveyor 9 and a connecting plate portion 38d for connecting the support plate portion 38c and the lower protrusion plate 38b. The protruding length of the lower protruding plate 38b is longer than that of the upper protruding plate 38b and is substantially the same length as the support plate portion 38c. The connecting plate portion 38d vertically connects the protruding end portions of the lower protruding plate 38b and the support plate portion 38c.

  As shown in FIG. 6, spring seat receivers 36a for receiving spring seats 36, which will be described later, are provided on the front side surface and the rear side surface of the long plate portion 38a. The spring seat receiver 36a is fixed to the long plate portion 38a by bolts (not shown). Between the upper protruding plate 38b and the support plate portion 38c, a side roller 39 with the vertical direction as the rotation axis direction is supported rotatably. The side roller 39 includes a cylindrical roller portion 391 and a shaft portion 392 provided at the shaft center of the roller portion 391. The upper end portion of the shaft portion 392 passes through the upper protruding plate 38b and protrudes upward. A bearing 39a is provided on the upper surface of the upper protruding plate 38b, and the bearing 39a rotatably holds the upper end portion of the shaft portion 392.

  The lower end portion of the shaft portion 392 passes through the support plate portion 38c and protrudes downward. A thrust bearing 39b is provided on the upper surface of the support plate portion 38c, and the thrust bearing 39b supports the lower end portion of the shaft portion 392 in a rotatable manner.

  A motor 39d is provided below the lower protruding plate 38b. The rotating shaft of the motor 39d passes through the lower protruding plate 38b and protrudes upward. A coupling 39c for connecting the rotating shaft of the motor 39d and the lower end of the shaft portion 392 is provided between the support plate portion 38c and the lower protruding plate 38b and between the connecting plate portion 38d and the long plate portion 38a. It has been. The rotation of the motor 39d is transmitted to the side roller 39, and the side roller 39 rotates.

  The end of the sliding shaft 34 on the side of the intermediate conveyor 9 is provided at a right angle to the long plate portion 38a. The sliding shaft 34 and the long plate portion 38a are connected by a connecting member 34b (for example, a stud bolt and a nut). Between the long plate portion 38 a and the adjustment plate 33, a spring seat 36 is fitted on the end portion of the sliding shaft 34 on the long plate portion 38 a side. The spring seat 36 has a cylindrical shape and has a flange at one end thereof. The spring seat 36 is fitted on the sliding shaft 34 so that the flange is positioned on the long plate portion 38a side. As shown in FIG. 6, the spring seat 36 is locked to a spring seat receiver 36a.

  Between the long plate portion 38 a and the adjustment plate 33, a sliding bush 37 slidable with respect to the slide shaft 34 is fitted on the adjustment plate 33 side of the slide shaft 34. The sliding bush 37 has a cylindrical shape and has a flange at one end thereof. The sliding bush 37 is fitted on the sliding shaft 34 so that the flange is positioned on the adjustment plate 33 side. A pressing spring 36 b is provided around the sliding shaft 34 between the flange of the sliding bush 37 and the flange of the spring seat 36. The pressing spring 36 b presses the spring seat 36 toward the spring seat receiver 36 a and presses the sliding bush 37 toward the adjustment plate 33 by its elastic force.

  A male screw portion 34a is formed at the end of the sliding shaft 34 on the opposite side of the intermediate conveyor 9 (left side shown in FIG. 6). The male screw portion 34 a protrudes from the adjustment plate 33. A nut 34b with a washer is screwed onto the male screw portion 34a so that the washer portion is positioned on the adjustment plate 33 side. A nut 34c is screwed into the male screw portion 34a. The nut 34b with a washer is located closer to the intermediate conveyor than the nut 34c. The adjustment plate 33 and the sliding shaft 34 are connected by the pressing spring 36b, the sliding bush 37, the nut 34c, and the washer-attached nut 34b.

  By loosening the nut 33a that is screwed to the dimensioning bolt 32 and tightening the adjustment plate 33 and changing the left and right position of the adjustment plate 33, the left and right position of the slide shaft 34 is changed, and the side roller 39 Can be changed. The user can determine that the lateral dimension between the side rollers 39 of the two side roller units 30 is substantially the same as the lateral dimension of the bag that has passed through the first roller unit 10 or slightly shorter than the lateral dimension of the bag. In this way, the left and right positions of the side rollers 39, 39 can be changed to adjust the initial tension of the push spring 36b.

  The initial tension of the push spring 36b can also be adjusted by rotating the nut 34b with washer to change the left and right positions of the nut 34b with washer in the male screw portion 34a. In this case, the user can separate the nut 34c from the washer-attached nut 34b as necessary. For example, the nut 34c can be removed from the male threaded portion 34a or separated from the washer-attached nut 34b while being screwed into the male threaded portion 34a. After adjusting the initial tension, the nut 34c may be brought close to the washer-attached nut 34b. Further, the left and right positions of the adjustment plate 33 are changed, the left and right positions of the side rollers 39 and 39 are roughly changed, the initial tension of the push spring 36b is roughly adjusted, and then the left and right positions of the nut 34b with washer are changed. The left and right positions of the side rollers 39, 39 or the initial tension of the push spring 36b can be finely adjusted.

  When the bag is conveyed between the two side roller units 30 and 30, the urging force of the pressing spring 36b acts on the left and right edges of the bag from the two side rollers 39 and 39, and the two side rollers 39 and 39 are Press the bag from the left and right. When a reaction force larger than the biasing force of the pressing spring 36b acts on the side roller 39 from the bag, the sliding shaft 34 slides inside the sliding bush 37, and the side roller 39 is on the left or right side (the side away from the bag). , The pressing spring 36b bends, and the urging force of the pressing spring 36b increases, so that an appropriate force can be applied to the bag.

  By changing the left-right position of the side roller 39, the initial tension of the push spring 36b can be adjusted, and the force acting on the bag from the side roller 39 can be changed. When the side roller 39 is moved closer to the intermediate conveyor 9 side, the force acting on the bag from the side roller 39 is increased. On the other hand, when the side roller 39 is separated from the intermediate conveyor 9, the force acting on the bag from the side roller 39 is reduced.

  An operation unit 90 and a control panel 100 are provided at the front of the frame body 1. The drive of the motors 40 and 50 and the motor 39d is controlled by the control panel 100. The control panel 100 controls the driving of the motors 40 and 50 and the motor 39d so that the peripheral speeds of the first roller unit 10, the second roller unit 20, and the side roller unit 30 are the same.

  The operation unit 90 includes a start switch, a stop switch, and a reverse switch. On / off signals of the start switch, stop switch, and reverse switch are input to the control panel 100. When the start switch is turned on, the control panel 100 rotates the rollers of the first roller unit 10, the second roller unit 20, and the side roller unit 30 in order to convey the bag from the front side to the rear side. When the stop switch is turned on, the control panel 100 stops each roller of the first roller unit 10, the second roller unit 20, and the side roller unit 30.

  The user places a bag containing a lump made of powdered or granular material on the front conveyor 6 and moves it to the belt conveyor 7. The belt conveyor 7 is driven by the power from the motor 40. The bag is conveyed to the first roller unit 10 by the belt conveyor 7. The upper roller 11 and the lower roller 12 of the first roller unit 10 are rotated by the power from the motor 40. The bag is drawn between the upper roller 11 and the lower roller 12 by the rotation of the upper roller 11 and the lower roller 12 and is pressed from above and below by the upper roller 11 and the lower roller 12.

  Although the lump in the bag is loosened by the pressure from the upper roller 11 and the lower roller 12, a part of the lump moves to the left and right in the bag and may not be loosened.

  After passing through the first roller unit 10, the bag is fed between the side roller units 30 and 30 arranged on the left and right. The left and right portions of the bag are pressed by the side rollers 39 of each of the side roller units 30 and 30. For this reason, the lump which moved right and left in the bag is loosened.

  After passing through the side roller units 30, 30, the bag is conveyed to the second roller unit 20. The upper roller 21 and the lower roller 22 of the second roller unit 20 are rotated by the power from the motor 50. The bag is drawn between the upper roller 21 and the lower roller 22 by the rotation of the upper roller 21 and the lower roller 22 and is pressed from above and below by the upper roller 21 and the lower roller 22.

  When the position sensor 80 detects the bag that has passed through the second roller unit 20, the control panel 100 reversely rotates the motors 40 and 50 and the motor 39d. The bag passes through the second roller unit 20, the side roller unit 30, and the first roller unit 10 in order, and is conveyed to the front conveyor 6 by the belt conveyor 7. The lump in the bag is further loosened by the second roller unit 20, the side roller unit 30, and the first roller unit 10. Even when the reverse switch of the operation unit 90 is turned on by a user operation, the control panel 100 moves the rollers of the first roller unit 10, the second roller unit 20, and the side roller unit 30 from the rear side to the front side. Reverse rotation to transport the bag.

  In the solidified material loosening device according to the embodiment, since the side roller 39 presses the lump of material moved to the side by the pressing of the upper rollers 11, 21 and the lower rollers 12, 22, the elastic force is high. Even if a powdery or granular material (for example, resin pellets) is contained in the bag, the lump can be loosened reliably.

  Further, the bag is smoothly conveyed by rotating the side roller 39 together with the rotation of the upper rollers 11 and 21 and the lower rollers 12 and 22. Further, the bag breakage can be prevented by synchronizing the peripheral speed of the side roller 39 with the peripheral speed of the upper rollers 11 and 21 and the lower rollers 12 and 22.

  Even if the object in the bag is biased to the right or left when passing through the first roller unit 10, the left and right positions of the object in the bag are adjusted by receiving the force from the side roller 39, and the object in the bag Are arranged on average.

  By providing the 1st and 2nd roller units 10 and 20, the lump in a bag can be loosened more reliably. When the front-rear dimension between the first and second roller units 10 and 20 is shorter than the front-rear dimension of the bag, the lump in the bag between the first and second roller units 10 and 20 moves in the front-rear direction (conveying direction). ), The pressing force from the side roller 39 acts on the lump efficiently.

  The position sensor 80 may not be provided, and the motors 40 and 50 and the motor 39d may be configured not to reversely rotate. In this case, the solidifying material loosening device can be easily incorporated into the factory line. Further, the side roller unit 30 may not be provided with the motor 39d. Further, the position of the side roller 39 may be fixed without providing the push spring 36b.

  The number of roller units having the upper rollers 11 and 21 and the lower rollers 12 and 22 is not limited to two. For example, the second roller unit 20 may not be provided. Further, if necessary, a roller unit having an upper roller and a lower roller may be further added to provide three or more roller units. Side roller units 30 are optionally provided between the three or more roller units.

  The number of the convex portions 11a, 12a, 21a, and 22a of the upper rollers 11 and 21 and the lower rollers 12 and 22 is not limited, and is appropriately determined according to specifications. For example, there are cases where four convex portions 11a, 12a, 21a, 22a are provided to crush the solidified mass, and five convex portions 11a, 12a, 21a, 22a are provided to loosen the solidified mass finely. In some cases.

  The motors 40 and 50 are examples of drive sources, and other drive sources (for example, engines) may be used instead of the motors.

  Hereinafter, the present invention will be described with reference to the drawings showing a solidified material loosening apparatus according to a second embodiment. FIG. 8 is a partially enlarged plan view schematically showing the side roller unit. The side roller 39 includes a plurality of convex portions 393, 393,... 393 protruding from the outer peripheral surface of the roller portion 391. When the convex portion 393 presses the bag, the pressure acting on the object in the bag is increased as compared with the case where the convex portion 393 is not provided, and the object can be loosened more efficiently. Note that the number of the convex portions 393 is not limited, and is appropriately determined according to the specification.

  Of the configurations according to the second embodiment, configurations similar to those of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  It should be thought that embodiment disclosed this time is an illustration and restrictive at no points. The technical features described in each embodiment can be combined with each other, and the scope of the present invention is intended to include all modifications within the scope of claims and the scope equivalent to the scope of claims. Is done.

10 First roller unit (roller unit)
11 Upper roller 12 Lower roller 20 Second roller unit (roller unit)
21 Upper roller 22 Lower roller 30 Side roller unit 34 Sliding shaft 36b Push spring 37 Sliding bush 38 Roller support 39 Side roller 39a Motor

Claims (5)

In the solidified material loosening device comprising an upper roller and a lower roller, which are formed with irregularities on the surface, and press and convey a bag containing a mass of accumulated objects,
A plurality of rotatable side rollers that are opposed to each other in a direction crossing the bag conveyance direction and that press the bag pressed by the upper roller and the lower roller from the side to loosen the lump in the bag. A solidifying material loosening device characterized by comprising: A roller support for supporting the side roller;
The opposite direction of the side roller is the axial direction, one end is connected to the roller support, and the other end is formed with a male screw part,
The male screw portion protrudes therethrough, and an adjustment plate for adjusting the opposing direction position of the side roller;
A press spring provided around the shaft between the adjusting plate and the roller support;
A first nut threadably engaged with the male screw portion;
One end portion passes through the adjustment plate, and a cutting bolt with the opposing direction as an axial direction;
A support part for supporting the other end of the dimensioning bolt;
A second nut screwed into one end of the dimensioning bolt;
The solidifying material loosening device according to claim 1, comprising: Solidifying material loosening device according to claim 1 or 2, characterized in that it comprises a motor for rotating the side rollers. The solidifying material loosening device according to claim 3 , wherein the driving of the motor is controlled so that a peripheral speed of the side roller is synchronized with a peripheral speed of the upper roller and the lower roller. A plurality of roller units having the upper roller and the lower roller;
The roller units are juxtaposed in the transport direction,
The solidified material loosening device according to any one of claims 1 to 4 , wherein the side rollers are arranged between the roller units in a conveying direction.

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