Stock Adjustment Device

Abstract

Provided is a stock material adjusting device that, even when adjusting a stock material raw material containing a large amount of hot melt adhesive, viscous substances, etc., will not cause the adhesive to stack up on the squeegee and will not damage the cylindrical cylinder. Since an annular member (37) is provided in the other end space portion (39), the stock material raw material accumulates in front of the end face (37d) of the annular member (37), becoming a soft state where the moisture is not drained. Therefore, the squeegee fittings (43, 43) are inserted, bringing the squeegee fittings (43, 43) close to the squeegees (21a, 21a,...). Thus, even if the stock material raw material containing a large amount of hot melt adhesive, viscous substances, etc. adheres to the squeegees (21a, 21a,...), a scraping action can be generated on the plate surfaces (43a, 43a) of the squeegee fittings (43) by the rotation of the squeegees (21a, 21a,...) to scrape it off cleanly.

Description

Technical Field

[0001] The present invention relates to a stock preparation device for performing deinking, debinding, and degumming treatments on stock raw materials such as waste paper containing hot melt adhesives, tackifiers, etc. Background Art

[0002] Such a stock preparation device is, for example, the device described in Patent Document 1. In this stock preparation device, a cylindrical cylinder is arranged horizontally. An inlet for feeding stock raw materials such as waste paper is provided at one end of the axial direction of the cylindrical cylinder, and an outlet for discharging the treated stock raw materials is provided at the other end. The outlet can be opened and closed by an adjustment damper.

[0003] Furthermore, a rotating shaft penetrating the cylindrical cylinder is provided, and this rotating shaft is supported by bearings installed at both ends of the cylindrical cylinder. The rotating shaft rotates by a driving motor. A conveying screw is provided at approximately half of one side of the rotating shaft, and a scraper is provided at approximately half of the other side.

[0004] This stock preparation device feeds stock raw materials such as waste paper into the cylindrical cylinder from the inlet, conveys it to the other side of the cylindrical cylinder using the conveying screw, and repeatedly compresses and expands it using the scraper, thereby raising its temperature and making the hot melt adhesive, tackifier, etc. into a rolled-up state. The treated stock raw materials are discharged from the outlet. In addition, by adjusting the opening and closing of the outlet with the adjustment damper, the treatment suitable for the fed stock raw materials is performed.

[0005] In the stock raw materials treated in this way, the hot melt adhesive, tackifier, etc. can be efficiently removed in the post-treatment based on a slit screen.

[0006] Prior Art Documents

[0007] Patent Documents

[0008] Patent Document 1: Japanese Patent No. 3433919 Gazette Summary of the Invention

[0009] Problems to be Solved by the Invention

[0010] In the above-described conventional stock preparation device, the outlet is provided on the other side of the cylindrical cylinder, but a space portion (hereinafter referred to as the other-end space portion) is formed between the edge on the other side of the outlet and the other end of the cylindrical cylinder. This is because, in order to form a flange for bolting the bearing device at the other end of the cylindrical cylinder or to ensure the strength of the cylindrical cylinder, it is necessary to set the outlet at a certain distance from the other end of the cylindrical cylinder.

[0011] In the conventional stock adjusting device, the other end space portion serves as an accumulation place for the discharged stock raw material. Therefore, when the stock raw material contains a large amount of hot melt adhesive, viscous substances, etc., the viscous substances accumulated in this accumulation place are likely to adhere and bond to the scraper closest to this other end space portion together with the stock raw material. When the bonded substances are stacked and enlarged, the bonded substances are scraped against the inner surface of the cylindrical cylinder due to the rotation of the scraper, which may cause the cylindrical cylinder to be damaged.

[0012] The present invention is completed in view of the above-mentioned conventional problems, and its object is to provide a stock adjusting device that does not allow bonded substances to stack on the scraper and does not cause damage to the cylindrical cylinder.

[0013] Means for Solving the Problem

[0014] The present invention is completed to solve the above problems. For the invention of Technical Solution 1, the stock adjusting device includes: a cylindrical cylinder that is horizontally arranged, with the direction from one axial side to the other side being the feeding direction of the stock raw material; an inlet that is provided at one end of the cylindrical cylinder for feeding the stock raw material; an outlet that is provided at the other end of the cylindrical cylinder and serves as the outlet for the adjusted stock; a rotating shaft that penetrates through the central part inside the cylindrical cylinder for rotational driving; a feeding screw that is provided on the one side of the rotating shaft; a plurality of scrapers that are provided on the other side of the rotating shaft and are arranged at intervals in the axial direction of the rotating shaft; a blocking fitting that is arranged to protrude into the cylindrical cylinder and enter between the scrapers; a pressure maintaining unit that maintains the inside of the cylindrical cylinder at a specified pressure; and a porous part that closes the notch formed on the lower side of the cylindrical cylinder. The stock adjusting device further includes: an annular member that fills the gap on the other side of the other end space portion from the edge on the other side of the outlet inside the cylindrical cylinder to the other end of the cylindrical cylinder, and the rotating shaft penetrates through this annular member rotatably; and a scraping blade fitting that protrudes from the cylindrical cylinder between the end face on one side of the annular member and the scraper closest to the other end space portion.

[0015] For the invention of Technical Solution 2, in the stock adjusting device according to Technical Solution 1, the end face on one side of the annular member in the other end space portion is a vertical plane, and the scraping blade fitting has a vertical plane end face that is close to and opposite to the vertical plane end face of the annular member.

[0016] For the invention of Technical Solution 3, in the stock adjusting device according to Technical Solution 1 or 2, the scraper closest to the other end space portion extends to the other side beyond the edge on the other side of the outlet.

[0017] Regarding the invention of Technical Solution 4, in the stock adjusting device described in any one of Technical Solutions 1 to 3, a plurality of scraper fittings are protrudingly provided at intervals in the circumferential direction.

[0018] Regarding the invention of Technical Solution 5, in the stock adjusting device described in any one of Technical Solutions 1 to 4, the scraper fitting is configured to have the same shape as the blocking fitting.

[0019] Effects of the Invention

[0020] According to the stock adjusting device of the present invention, even when processing stock materials containing a large amount of hot melt adhesive, viscous substances, etc., it is possible to prevent the adhesion of materials from laminating on the scraper closest to the space portion at the other end. Therefore, the cylindrical cylinder will not be scratched by the scraper and damaged. Description of the Drawings

[0021] Figure 1 is a top view of the stock adjusting device according to an embodiment of the present invention.

[0022] Figure 2 is Figure 1 a side view of the stock adjusting device.

[0023] Figure 3 is Figure 2 a partial cross-sectional view.

[0024] Figure 4 is Figure 1 a partial cutaway perspective view of the other end of the stock adjusting device.

[0025] Figure 5 is Figure 4 a cross-sectional view taken along line A-A of Detailed Embodiments

[0026] Based on Figures 1 to 5 the stock adjusting device 1 for stock materials according to an embodiment of the present invention will be described.

[0027] Reference numeral 3 denotes a gantry base, and brackets 5 and 7 are provided on the gantry base 3. A circular hole 7a is formed in the bracket 7.

[0028] Reference numeral 9 denotes a cylindrical cylinder, and flanges 9a are formed at both ends of the cylindrical cylinder 9. The middle portion of the cylindrical cylinder 9 is supported by the bracket 5, and both ends of the cylindrical cylinder 9 are supported by the bracket 7 so that the cylindrical cylinder 9 is horizontally arranged on the gantry base 3. The flange 9a of the cylindrical cylinder 9 abuts against the flange 7b of the bracket 7.

[0029] As Figure 1 indicated by the arrow in

[0030] Reference numeral 11 denotes a bearing device which is installed on the other side of the cylindrical cylinder 9 and, as shown in detail, closes the opening on the other side of the cylindrical cylinder 9. A flange 11b is formed on the housing 11a of the bearing device 11, and this flange 11b abuts against the bracket 7. Further, the flange 11b of the bearing device 11, the flange 9a of the cylindrical cylinder 9, and the flange 7b of the bracket 7 are bolted together. Similarly, the opening on one side of the cylindrical cylinder 9 is also closed by a bearing device 13. Figure 3 Four internal threads (not shown) are formed on the flange 11b of the bearing device 11. Further, no internal thread is formed on the flange 13b of the bearing device 13.

[0031]

[0032] A rotating shaft 15 passes through the center of the cylindrical cylinder 9, and both ends of this rotating shaft 15 are supported by the bearing devices 11 and 13 in such a manner that the rotating shaft 15 can rotate. In addition, one end of the rotating shaft 15 is connected to a driving motor 17.

[0033] A feed screw (not shown) is provided on one side of the rotating shaft 15. In addition, a plurality of scraping plates 21, 21,... are provided on the other side of the rotating shaft 15, and the scraping plates 21 are arranged at intervals from each other in the axial direction of the rotating shaft 15. The scraping plates 21 are arranged in a crossed manner, inclined with respect to the feed direction and the return direction. Further, the scraping plates 21 are arranged with a 90° stagger in the circumferential direction. Thus, when viewed from a cross-section perpendicular to the axial direction, there are portions where two or four scraping plates 21 are arranged in the circumferential direction.

[0034] Reference numeral 23 denotes a blocking fitting. The cylindrical cylinder 9 has a multi-layer structure, and this blocking fitting 23 projects from the inner cylinder 9d constituting the inner surface of the cylindrical cylinder 9 toward the axis center. Since it projects from the highest position on the inner surface, it assumes a vertical posture and extends from above downward. A plurality of blocking fittings 23, 23,... are provided, and each blocking fitting 23 is arranged so as to enter between adjacent scraping plates 21, 21. The blocking fitting 23 has a square plate shape, and the plate surface 23a facing the scraping plate 21 is a vertical plane.

[0035] A cylindrical inlet 25 is provided on one axial side of the cylindrical cylinder 9 in such a manner that it communicates with the inside of the cylindrical cylinder 9 on the upper side. In addition, an outlet 27 is provided on the other axial side in such a manner that it communicates with the inside of the cylindrical cylinder 9 on the front side. This outlet 27 is opened and closed by a lid body 29. An adjusting damper 33 connected to a cylinder 31 is linked to the lid body 29. Thus, the inside is maintained at a prescribed pressure.

[0036] In addition, a notch is formed on the lower side in the axial middle of the cylindrical cylinder 9, and this notch portion is closed by a perforated metal (not shown) in such a manner that water can pass through. Further, a drain port 35 is connected so as to surround the notch portion.

[0037] Reference numeral 37 denotes a circular ring member, which is in a circular ring shape with a certain degree of thickness and has a circular hole 37a at the center. The circular hole 37a is set to a diameter size that the rotating shaft 15 can be inserted in a rotatable manner. An annular groove 37b is formed on the end face 37d on the other side of the circular ring member 37. In addition, four bolt through holes 37c are formed on the circular ring member 37, and the bolt through holes 37c are connected to the groove 37b and the end face 37d exposed on one side of the circular ring member 37. The end face 37d is a vertical plane.

[0038] The other end space 39 is formed between the edge 27 a of the other side of the outlet 27 in the cylindrical cylinder 9 and the end 9 b of the other side of the cylindrical cylinder 9 .

[0039] The annular member 37 is disposed in the other end space portion 39 to fill the gap on the other side of the other end space portion 39. The rotating shaft 15 is passed through the circular hole 37a of the annular member 37. In addition, the bolt 41 is passed through the bolt through hole 37c, and the bolt 41 is threadedly engaged with the internal thread 11c formed on the flange 11b of the bearing device 11. The upper surface 41a of the head of the bolt 41 is roughly coplanar with the end surface 37d, and the end surface 37d side is flat.

[0040] like Figure 4 , Figure 5 As shown, two scraper accessories 43, 43 are provided at a position closer to one side of the annular member 37 in the other end space portion 39. The scraper accessories 43 are configured in the same shape as the blocking accessories 23, and are protruded from the inner surface of the cylindrical cylinder 9 toward the center of the axis. Since one scraper accessory 43 is protruded from the highest position in the inner surface, it is in a vertical posture and extends from the top to the bottom. The other scraper accessory 43 extends in an inclined direction. The two scraper accessories 43, 43 are arranged 135° apart in the circumferential direction. In addition, Figure 3 In order to facilitate visual identification, only the scraper accessories 43 extending from the upper side to the lower side are shown in the figure.

[0041] The scraper attachments 43 , 43 are disposed close to the scraper 21 a , 21 a , . . . arranged on the other axial side among the scrapers 21 , 21 , . . . and enter between the scraper 21 a , 21 a , . . . and the end surface 37 d of the annular member 37 .

[0042] The plate surfaces 43a, 43a of the scraper attachment 43 are close to and face the end surface 37d with a slight gap on the other side, and are close to the scrapers 21a, 21a, . . . with a slight gap on one side.

[0043] The scrapers 21 a , 21 a , . . . extend to the other side of the edge 27 a on the other side of the outlet 27 , and a part of them enters the other end space 39 .

[0044] The stock adjusting device 1 is configured as described above.

[0045] The operation of the stock adjusting device 1 will be described.

[0046] Stock raw materials containing a large amount of hot melt adhesive, viscous substances, etc. are introduced into the interior of the cylindrical cylinder 9 from the inlet 25.

[0047] Inside the cylindrical cylinder 9, it is conveyed toward the outlet 27 by the feeding screw. Then, when the stock raw materials reach the other side of the cylindrical cylinder 9, a state of untwisting is generated between the feeding direction and the returning direction by the scraper 21 rotating together with the rotating shaft 15. In addition, since the blocking fittings 23 fixed between the scrapers 21 enter in sequence, the stock raw materials are prevented from rotating together with the scraper 21.

[0048] As described above, by putting the stock raw materials in a state of untwisting, they are repeatedly compressed and expanded. As a result, the temperature of the stock raw materials rises, causing the hot melt adhesive, viscous substances, etc. to become a rolled-up state, and the processed stock raw materials are discharged from the outlet 27. In addition, by adjusting the opening and closing of the outlet 27 by the adjusting damper 33, the processing suitable for the stock raw materials introduced is performed. Also, water is discharged from the drain port 35.

[0049] In this stock adjusting device 1, since the ring member 37 is provided in the other end space portion 39, the stock raw materials accumulate near the end face 37d of the ring member 37 and become a soft state where the moisture is not completely drained. Therefore, the scraper fittings 43, 43 are made to enter, and the scraper fittings 43, 43 are brought close to the scrapers 21a, 21a,.... Thus, even if the stock raw materials containing a large amount of hot melt adhesive, viscous substances, etc. adhere to the scrapers 21a, 21a,..., they can be scraped off cleanly by the rotation of the scrapers 21a, 21a,... generating a scraping action on the plate surfaces 43a, 43a of the scraper fittings 43.

[0050] In addition, the plate surface 43a of the scraper fitting 43 also approaches the end face 37d side, and large hot melt adhesive, viscous substances, etc. do not enter the smaller gap. If large hot melt adhesive, viscous substances, etc. enter, the stock raw materials will be laminated and bonded around them, and it may be difficult to scrape them off with the scraper fitting 43, but such a concern will not occur.

[0051] Moreover, the scrapers 21a, 21a,... extend toward the other side with respect to the edge 27a on the other side of the outlet 27, so the amount of stock raw materials accumulated near the end face 37d of the ring member 37 is suppressed.

[0052] The above has described the embodiments of the present invention in detail. However, the specific structure is not limited to this embodiment, and design changes and the like within the scope without departing from the gist of the present invention are also included in the invention.

[0053] For example, in the above embodiment, two scraper fittings 43, 43 are provided in the other end space portion 39, but the present invention is not limited thereto, and three or more scraper fittings may be provided.

[0054] Description of Reference Numerals

[0055] 1, stock adjusting device; 3, stand base; 5, 7, brackets; 7a, circular hole of the bracket; 7b, flange of the bracket; 9, cylindrical cylinder; 9a, flange of the cylindrical cylinder; 9b, other end of the cylindrical cylinder; 9d, inner cylinder; 11, 13, bearing devices; 11a, housing of the bearing device; 11b, flange of the bearing device; 11c, internal thread of the flange of the bearing device; 13b, flange of the bearing device; 15, rotating shaft; 17, driving motor; 21, scraper; 23, blocking fitting; 23a, plate surface; 25, inlet; 27, outlet; 27a, edge of the outlet; 29, cover; 31, cylinder; 33, adjusting damper; 35, drain port; 37, ring member; 37a, circular hole of the ring member; 37b, groove of the ring member; 37c, bolt through-hole of the ring member; 37d, end face of the ring member; 39, other end space portion; 41, bolt; 41a, upper surface of the head of the bolt; 43, scraper fitting; 43a, plate surface.

Claims

1. A stock adjusting device includes: a cylindrical cylinder disposed horizontally, with the direction from one axial side to the other side being the feeding direction of the stock raw material; an inlet disposed at one end of the cylindrical cylinder for feeding the stock raw material; an outlet disposed at the other end of the cylindrical cylinder, serving as the outlet of the adjusted stock; a rotating shaft passing through the central portion inside the cylindrical cylinder for rotational driving; a feeding screw disposed on the one side of the rotating shaft; a plurality of scrapers disposed on the other side of the rotating shaft and arranged at intervals in the axial direction of the rotating shaft; a blocking fitting disposed to project into the cylindrical cylinder and enter between the scrapers; a pressure maintaining unit for maintaining the inside of the cylindrical cylinder at a specified pressure; and a porous portion closing a notch formed on the lower side of the cylindrical cylinder. The stock adjusting device further includes: an annular member disposed in the other end space portion from the edge on the other side of the outlet inside the cylindrical cylinder to the other end of the cylindrical cylinder, filling the gap on the other side of the other end space portion, and the rotating shaft passes through the annular member rotatably; and a blade fitting projecting from the cylindrical cylinder between the end face on one side of the annular member and the scraper closest to the other end space portion.

2. The stock adjusting device according to claim 1, wherein the end face on one side of the annular member in the other end space portion is a vertical plane, and the blade fitting has a vertical plane end face close to and opposite to the vertical plane end face of the annular member.

3. The stock adjusting device according to claim 1 or 2, wherein the scraper closest to the other end space portion extends to the other side beyond the edge on the other side of the outlet.

4. The stock adjusting device according to claim 1 or 2, wherein a plurality of blade fittings project at intervals in the circumferential direction.

5. The stock adjusting device according to claim 1 or 2, wherein the blade fitting is configured to have the same shape as the blocking fitting.

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