JP2018118218A - Pleat folding device of filter sheet material, system and method for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fold-folding device for a filter sheet material capable of efficiently producing a high-quality product by making it difficult for bacteria and the like to get in contact with human hands. SOLUTION: An upper mold (40) for embossing a filter sheet material (1) from above with a conical mold surface (41) in which ridge lines (W) and valley lines (V) corresponding to folds are alternately formed. And the operation of moving the upper type elevating means for raising and lowering it from the operating position (J) higher than the lower limit (K) by the height (H) of the upper type (40) to the lower limit (K). Rollers (10) arranged in as many folds as the number of folds so that the mold surface (41) rolls in the radial direction along the ridge line (W) and the valley line (V) from the top (T) of the cone. , 20), the urging means (11) that presses them against the mold surface (41) of the upper mold (40), and the mold surface (41) that descends against it, pushes the rollers (10, 20) away. It is equipped with a rolling support mechanism (60) that guides the route. [Selection diagram] FIG. 4

Description

  The present invention relates to a filter sheet material fold-folding apparatus, a system and a method thereof, and more particularly, to form a continuous bellows-like creased conical portion on a sheet-like filter material along the inner surface of the funnel. The present invention relates to a fold-folding device for a filtration sheet material that is three-dimensionalized, a system and a method thereof.

  Separation of solid and liquid in chemical analysis or the like is performed through a filter paper made of cellulose. Usually, a circular filter paper is folded in four and spread in a conical shape on a funnel. In this case, the filtration performance of the filter paper becomes more advantageous as the filtration area becomes larger. Therefore, in order to increase the filtration speed for the filter paper, a method of ensuring a large surface area in contact with the solution by folding the filter paper to fold the filter paper is often adopted. For this reason, it is necessary to fold the filter paper.

  However, the manual folding process for applying a fold process to a circular filter paper to complete a single fold filter paper requires about 1 minute even for a skilled person. For this reason, analysis laboratories with a large amount of use have spent a great deal of effort on manual folding. As an adverse effect of such a manual folding operation, not only an enormous amount of labor, but also an adverse effect of impurities adhering to the filter paper from the operator's hand cannot be ignored. As a result of the inspection conducted by the applicant / inventors in the previous year of the present application, it was quantitatively confirmed that sodium and potassium were attached to the filter paper from the hand of the hand folding operator and eluted into the filtrate. As a result, it was found that the above-mentioned impurities were mixed at a concentration of about 0.5 mg per 100 ml of the filtrate.

  Patent Document 1 discloses a press device for producing a filter paper with a conical pleat. This is an apparatus for producing an experimental conical pleated filter paper while eliminating the above-described adverse effects caused by the manual folding operation. Specifically, the pressing device is configured by providing a conical pleated convex portion on the (upper mold) convex portion and a conical pleated concave portion on the (lower mold) concave portion, and the (upper mold) convex portion. And a circular filter paper sandwiched between the recess and the (lower mold) recess.

  Patent Document 2 discloses an apparatus for producing a filter paper with a conical pleat. This is also an apparatus for processing the filter paper so that it can be used in a conical funnel. Specifically, an upper opening / closing folding part and a lower opening / closing folding part interlocking with the opening / closing operation thereof are provided. These folding parts are provided with radial concave parts and convex parts extending to the central part. These recesses and projections can be engaged with the recesses and projections of the lower folding part that interlocks with the lower folding part while changing the size by opening and closing the upper opening and closing folding part. It can be done.

JP-A-11-333217 JP 2001-219013 A

  However, the press device for producing filter paper with a conical pleat described in Patent Document 1 is a press device that folds against a plastic film or other dish-shaped partition used to divide ingredients in a lunch box. May be useful, but the device is not suitable as a press device that folds strong, fibrous filter paper. The apparatus has a decisive lack of contrivance for performing careful paper folding so as not to break the filter paper, and there is much room for improvement. Therefore, it is difficult for the apparatus to crease well for most filter papers. For this reason, the inventors of the present application have not confirmed the evidence that the invention described in Patent Document 1 has been implemented.

  Incidentally, since aluminum foil, plastic film, and the like have a thickness of about 0.1 mm, they can be easily pressed by the apparatus according to the invention described in Patent Document 1. However, since the thickness of the filter paper for physics and chemistry is about 0.25 mm, and the thickness is not uniform depending on the location, it is unlikely that the filter paper is uniformly formed in each groove in the apparatus. In addition, about the invention of patent document 1, when this applicant and inventor tried implementation, it confirmed that many filter papers were damaged.

  Further, the conical pleated filter paper manufacturing apparatus described in Patent Document 2 is not fully devised in the same manner as the apparatus described in Patent Document 1, and there is still a little room for improvement. In particular, for thick filter paper, it is difficult to crease uniformly and well, and higher-grade stability is required. For this reason, the inventors of the present application have not confirmed the trace of the invention described in Patent Document 2 as well.

  As described above, the physics and chemistry filter paper is thick and non-uniform in thickness. Therefore, in the apparatus provided with the umbrella-shaped mold according to the invention described in Patent Document 2, the valleys of the filter paper are folded at equal intervals. It is difficult. In addition, the means described in other drawings according to Patent Document 2 has a structure in which sufficient force is not transmitted to the edge portion of the valley, so it is difficult to make a firm crease. Does not result in a shape that fits on the desired glass funnel.

  The present invention has been made in view of such problems, and the object of the present invention is to provide a fold-folding process that is completed without touching the sheet-like filtration material as much as possible, such as bacteria and contaminants. It is easy to avoid defects that adhere from human hands, problems that break the filtration material during the fold-folding process, and problems that lack shape identity to guarantee high and uniform filtration performance. It is an object of the present invention to provide a filter sheet material fold-folding apparatus, a system and a method thereof which can efficiently crease and form the filter material in a short time. For example, it aims to save labor so that it can be broken in a short time of about 10 seconds without contamination, where it took 1 minute by hand.

The present invention has been made to achieve such an object, and the invention according to claim 1 is directed to mountain fold (L) and valley fold at a predetermined central angle with respect to a circular filter sheet material (1). A filter sheet material fold device (100, 200) for alternately forming the folds of (M) to form a conical bellows surface (2),
An upper mold (40) for embossing the filter sheet material (1) from above with a conical mold surface (41) in which ridge lines (W) and valley lines (V) corresponding to the folds are alternately formed;
An upper mold elevating means (50) disposed on the base (30) for elevating the upper mold (40) along a vertical axis (Z) penetrating the center of the upper mold (40) vertically;
The upper mold lifting / lowering means (50) is interlocked with the operation of moving from the operating position (J) higher than the lower limit (K) of the movable range by the height (H) of the upper mold (40) to the lower limit (K). ,
The number of the pleats (N) is arranged so that the mold surface (41) rolls in a radial direction along the ridge line (W) and the valley line (V) from the top (T) of the conical shape. Rollers (10, 20);
Urging means (11, 12) for pressing the rollers (10, 20) against the mold surface (41) of the upper mold (40);
In order to guide the path in which the rollers (10, 20) are pushed away by the lower mold surface (41) against the urging means (11, 12), they are arranged on the base (30). A rolling support mechanism (60);
With
In accordance with the operation of lowering the upper mold (40) by the upper mold lifting / lowering means (50), the filter sheet material (1) sandwiched between the mold surface (41) and the rollers (10, 20) rolls while pressing and creases.

The invention according to claim 2 is the fold-folding device (100, 200) of the filtration sheet material according to claim 1, wherein the rolling support mechanism (60) includes:
A rod-like member (61, 62) having a rotational axis (63) arranged in the tangent (9) direction of a virtual circle (8) centered on the vertical axis (Z) disposed at the tip;
A retraction mechanism for retreating the rollers (10, 20) individually supported by the rotation shaft (63) in a direction away from the vertical shaft (Z) according to the movement of the rod-shaped members (61, 62). (64, 65),
With
The rollers (10, 20)
A first roller (10) having a convex peripheral edge (13) that engages and rolls with the valley (V) of the upper mold (40);
A second roller (20) having a concave peripheral edge (14) that engages and rolls with the ridgeline (W) of the upper mold (40);
It is comprised by.

According to a third aspect of the present invention, in the filter sheet material fold device (100, 200) according to the second aspect of the present invention, the first roller (10) is formed with an acute angle and a thin blade shape. The peripheral edge (13) can roll while pushing the filter sheet material (1) into the back of the valley (V),
The second roller (20) is rolled while the concave peripheral edge (14) formed in a canyon shape in the axial direction covers the filter sheet (1) on both sides of the ridge line (W). It is possible to move.

According to a fourth aspect of the present invention, there is provided the filter sheet material fold device (100, 200) according to the second or third aspect, wherein the base (30) substantially coincides with the operating position (J). Having a horizontal surface (32) with a height of
The horizontal surface (32) is provided with a product passage hole (33) through which the upper mold (40) can pass approximately at the center,
The rod-shaped members (61, 62) are arranged from the peripheral edge (34) of the product passage hole (33) toward the vertical axis (Z),
The rollers (10, 20) stand by in a posture in which the upper mold (40) prevents the passage of the product passage hole (33), and is pushed away when the upper mold (40) passes and retreats. It is configured.

The invention according to claim 5 is the filter sheet material fold device (100, 200) according to any one of claims 2 to 4, wherein the first roller (100) on the upper surface of the base (30). 10) a first retraction mechanism (64) configured in a seesaw type with
A second retraction mechanism (65) configured in a slider shape with the second roller (20) on the lower surface of the base (30);
It has.

  Further, the invention according to claim 6 is the elevating mechanism (58, 59) of the upper mold elevating means (50) in the filter sheet material fold device (200) according to any one of claims 2 to 5. Is driven only by manual operation.

The invention according to claim 7 is a fold folding system for a filtration sheet material, which is a combination of operable units attached to the fold folding device (100) for a filtration sheet material according to any one of claims 1 to 5. (300),
Single sheet gripping means (71) for loading only one filter sheet material (1) from the replenishment space (73) by negative pressure at the timing when the upper die (40) reaches the vicinity of the upper limit (U) of the movable range. A paper feed unit (70) having
Stacked height management means (82) for managing the height (F) of the fold-folded product (1X) stacked by the edge position detection sensor (81), or integrating the number of products (1X) stacked A product receiving unit (80) having at least one of the sheet-feed functions (83) to perform,
A control unit (90) having an operation receiving unit (91) for integrated control of each unit;
Is a combination.

In the invention according to claim 8, a conical bellows surface (2) is formed by alternately forming mountain folds (L) and valley folds (M) on the circular filter sheet material (1). A method for folding a filter sheet material,
The upper mold (40) in which the valley line (V) and the ridge line (W) corresponding to the folds are formed on the conical mold surface (41) with the top (T) facing downward is raised from the base (30). A filtration sheet material loading step (S10) for loading the filtration sheet material (1) before fold folding,
Rollers (10, 20) that contact the vicinity of the center (O) of the lower surface (1Q) by lowering the upper mold (40) and pushing down the filter sheet material (1) from the upper surface (1P) are moved to the ridgeline ( W) and an embossing step (S20) of rolling in the radial direction of each pleat along the valley line (V) and embossing;
Further, the rollers (10, 20) roll from the peripheral edge (1R) of the filtration sheet material (1) in contact with the mold surface (41) of the lower mold (40) to the outer periphery (41R) side. A fold-folded product dropping step (S30) in which the fold-folded product (1X) is detached from the upper mold (40) and dropped.
It is what has.

  According to the present invention, it is a fold folding process that is completed without touching the sheet-like filtration material as much as possible, so that bacteria and contaminants adhere from human hands, and during the fold folding process. Filtration that makes it easy to avoid problems that break filter materials and defects that lack shape identity to guarantee high-level and uniform filtration performance, making the process of creasing and forming a single filter material efficient in a short time It is possible to provide a sheet material fold device, a system and a method thereof. As a result, it is possible to save labor so that it can be folded in a short time of about 10 seconds without contamination, where it took 1 minute by hand.

FIG. 3 is a side view illustrating a schematic perspective view of a filter sheet material fold folding device (hereinafter also referred to as “the present device” or “folding unit”) according to an embodiment of the present invention. It is a front view which shows an outline of this device partially transparently. It is a top view which shows partly arrangement | positioning of the rolling assistance mechanism of this apparatus. It is a side view explaining operation | movement of the retracting mechanism employ | adopted with this apparatus. FIG. 5A is a plan view of the seesaw viewed from the vertical direction, and FIG. 5B is a plan view of the seesaw viewed from a right angle direction. 5C is a side view, and FIG. 5D is a rear view of the seesaw of FIG. 5C viewed from the rear. FIGS. 6A and 6B are diagrams for explaining a slider-type retracting mechanism employed in the present apparatus, in which FIG. 6A is a plan view and FIG. 6B is a side view. It is explanatory drawing which shows the upper mold | type of this apparatus and its assistance mechanism, FIG. 7 (A) is a top view of a holding blade frame, FIG.7 (B) is an upper mold | type fixed to the raising / lowering frame, and can slide up and down. It is a side view of a control blade. The FIG. 8 is a view illustrating a fold-folding system (hereinafter, also referred to as “the present system”) of a filtration sheet material according to an embodiment of the present invention, with FIG. 8 (A) being a side view and FIG. 8 (B). Is a front view, and FIG. 8C is a perspective view immediately before the circular filter paper is detached from the mold surface. It is a perspective view which shows the fold filter paper shape | molded by this apparatus, this unit, or this method. It is a flowchart for demonstrating the procedure of this method.

[Basic example]
Hereinafter, a basic embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a side view showing a schematic perspective view of a filter sheet material fold device (hereinafter also referred to as “the device 100” or a “fold device 69”) according to an embodiment of the present invention. FIG. 2 is a front view showing a part of the outline of the apparatus. The apparatus 100 shown in FIG. 1 and FIG. 2 is also useful as a fold folding unit 69 that constitutes a filtration sheet material fold folding system (hereinafter also referred to as “the present system”) 300 as will be described later with reference to FIG. is there.

  The apparatus 100 includes a base 30, an upper mold 40, an upper mold lifting / lowering means 50, rollers 10 and 20, a rotating shaft 63 (FIGS. 5 and 6), and springs (biasing means) 11 and 12 ( 6) and a rolling support mechanism 60, the main part is configured. In the apparatus 100, a loading stage based on the loading guide frame 54 (FIG. 4) is formed below a space G generated between the rollers 10 and 20 and the upper mold 40. A conical bellows surface is formed by alternately forming folds of mountain folds L and valley folds M at a predetermined central angle on a circular filter sheet material (hereinafter also referred to as “circular filter paper”) 1 loaded on the loading stage. 2 (FIG. 9). In addition, in FIG. 1, the raising / lowering lever 58 shown with the phantom line by a dashed-two dotted line etc. and the raising / lowering connection mechanism 59 engaged with it are later mentioned as a [modification example].

  The height of the horizontal surface 32 of the base 30 is set at the operating position J. The operation position J will be described later. In the horizontal plane 32, a product passage hole 33 (see FIG. 3) through which the upper mold 40 can pass is formed in a substantially central portion, and the rod-like members 61 and 62 are moved from the peripheral portion 34 of the product passage hole 33 to the vertical axis Z. It is arranged toward.

  In the upper mold 40, as will be described later with reference to FIG. 7, a ridge line W and a valley line V are formed on a downward conical surface. The ridge line W and the valley line V form a conical bellows surface 2 (FIG. 9) by alternately forming folds of mountain folds L and valley folds M at a predetermined central angle with respect to the circular filter paper 1. . The upper mold 40 presses the circular filter paper 1 from above with a conical mold surface 41 in which ridge lines W and valley lines V corresponding to folds are alternately formed. The upper die lifting means 50 is lifted and lowered along a vertical axis Z that is disposed on the base 30 and penetrates the upper die 40 vertically. In addition, in the lower part of FIG. 2, the ridge line W and the valley line V are illustrated with a part thinned out in order to avoid complexity.

  The upper die lifting means 50 regulates the stroke of the upper die 40 from the upper limit U to the lower limit K, and moves the stroke up and down. The upper lifting / lowering means 50 of the apparatus 100 is driven by electric power or air pressure in accordance with an operation instruction received by the operation receiving unit 91 (FIG. 8B). As an upper mold lifting / lowering means 50, for example, it is advantageous to use an air cylinder by air pressure in a business establishment equipped with compressed air piping facilities. Otherwise, it is an electric type or a manual type [modified embodiment]. It is preferable.

  The lifting frame 51 fixed to the upper mold lifting means 50 has an upper mold suspension bar 52 fixed vertically downward from its tip, and the upper mold 40 has a conical apex downward at the tip of the upper mold suspension bar 52. Is fixed. Therefore, the upper mold 40 is moved up and down in the vertical direction by the upper mold lifting means 50. Further, a horizontal frame 42 (FIG. 2) is fixed to the elevating frame 51 together with the upper die suspension rod 52 in an evenly distributed state.

  A total of two sliding suspension rods 43 are suspended from both ends of the horizontal frame 42 via a pair of sliding engagement portions 44 so as to be slidable in the vertical direction. The two sliding suspension rods 43 have pressing blade frames 45 fixed to their lower ends. The presser blade frame 45 will be described later with reference to FIG.

  The rollers 10 and 20 are arranged on the base 30 by the number N of pleats via the rolling support mechanism 60 (FIG. 3). Here, 12 each of the valleys and the number of folds N = 24 are taken as an example. Therefore, a total of 24 sets of rollers 10 and 20 are pivotally supported by individual rotating shafts 63 having different set angles. A total of 24 sets of the rollers 10 and 20 described above are composed of 12 sets of first rollers 10 (also simply referred to as “rollers 10”) and 12 sets of second rollers 20 (also simply referred to as “rollers 20”). Has been.

  The rollers 10 and 20 and the upper mold 40 can also be implemented using metal materials. However, in view of the application of the present invention, the rollers Duracon ( It is preferably made of a resin such as registered trademark), POM (polyoxymethylene) or Teflon (registered trademark).

  The rollers 10 and 20 stand by in a posture in which the upper die 40 prevents the product passage hole 33 from passing, and have first and second retraction mechanisms 64 and 65 so as to be pushed away and retreat when the upper die 40 passes. Configured.

  As described above, the first retraction mechanism 64 (hereinafter also simply referred to as “retraction mechanism 64”) (FIG. 5) provided with the first roller 10 is configured as a seesaw type on the upper surface of the base 30. That is, a seesaw-type retraction mechanism 64 that pivotally supports the first roller 10 is disposed on the upper surface of the base 30.

  A second retraction mechanism 65 (hereinafter also simply referred to as “retraction mechanism 65”) (FIG. 6) provided with the second roller 20 is configured in a slider shape on the lower surface of the base 30. That is, a slider-type retraction mechanism 65 that pivotally supports the second roller 20 is disposed on the lower surface of the base 30.

  The loading port 4 shown in FIG. 2 can put the user's hand shown in FIG. As will be described later with reference to FIG. 4, the loading guide frame 54 is disposed at a position where only one circular filter paper 1 can be loaded from the loading port 4. The holding blade 53 will be described later with reference to FIG. A loading stage based on the loading guide frame 54 (FIG. 4) is formed below the space G.

  FIG. 3 is a plan view showing a part of the arrangement of the rolling support mechanism of the present apparatus. As shown in FIG. 3, the rolling support mechanism 60 is composed of 24 sets of rollers 10 and 20 arranged radially on the base 30 around the vertical axis Z. As shown in FIG. 1 to FIG. 3, the rolling support mechanism 60 is configured so that 24 sets of rollers 10 and 20 are directed radially from the top T to the ridge line W and valley line V with respect to the conical mold surface 41. Roll. The rolling support mechanism 60 operates in conjunction with an operation in which the upper die lifting means 50 moves from the operating position J higher than the lower limit K of the movable range by the height H of the upper die 40 to the lower limit K.

  FIG. 4 is a side view for explaining the operation of the retracting mechanism employed in the present apparatus. As shown in FIGS. 3 and 4, the rolling support mechanism 60 is disposed on the base 30 and guides a route along which the 24 sets of rollers 10 and 20 are pushed away. As shown in FIGS. 1 to 4, the rollers 10 and 20 are pushed away by a conical mold surface 41 that descends against the urging force of the springs (biasing means) 11 and 12 (FIG. 6).

  Note that the 24 sets of rollers 10 and 20 are arranged radially as shown in FIG. Each of these rollers 10 and 20 engages and rolls on a ridge line W and a valley line V that are radially formed by a mold surface 41 with a conical surface facing downward. On the other hand, the front view of FIG. 4 illustrates a retreat operation in which the rollers 10 and 20 are pushed away, and does not strictly represent the rolling path of the rollers 10 and 20.

  As shown by a broken line in FIG. 4, the loading guide frame 54 has an annular shape and forms a slope surface 15 having a low inner peripheral side on the upper surface, and the circular filter paper 1 is removed from the loading port 4 of the apparatus 100 (folding unit 69). Only one sheet is placed at a position where it can be loaded. The circular filter paper 1 includes various standard products having different paper quality, paper thickness, and diameter. On the other hand, at the center of the loading guide frame 54, a product passage hole 37 having a diameter smaller than the diameter of the circular filter paper 1 but capable of passing through the folded product 1X and the upper die 40 is formed. Yes. The product passage hole 37 communicates with the product passage hole 33 of the base 30.

  In the peripheral portion of the product passage hole 37 shown in FIG. 4, guide pins 55 are implanted at equal intervals on a concentric circle in the vertical direction. Further, the guide pin 55 can be transferred to either of the guide holes 56 and 57. Since the loading guide frame 54 has the configuration of the transferable guide pin 55 as described above, the loading guide frame 54 can be applied to three types of large, medium, and small circular filter papers 1 that are generally used. That is, when the circular filter paper 1 is large, the guide pin 55 is transferred to the guide hole 56 disposed on the concentric circle having a large diameter corresponding thereto, and when the circular filter paper 1 is small, the guide pin 55 is disposed on the concentric circle having a small diameter corresponding thereto. It can be adapted by transferring the guide pin 55 to the guide hole 57 provided in the above.

  FIG. 5 is a diagram illustrating a seesaw type retracting mechanism employed in the present apparatus. FIG. 5A is a plan view of the seesaw (bar-shaped member 61) viewed from the vertical direction, and FIG. FIG. 5C is a side view of the seesaw viewed from a right angle direction, FIG. 5D is a rear view of the seesaw of FIG. 5C viewed from the rear. As shown in FIG. 5A, the first roller 10 is pivotally supported by a rotation shaft 63 in a direction that coincides with the tangent line 7 of the virtual concentric circle 6 with respect to the vertical axis Z. Half of the rolling support mechanism 60 shown in FIG. 3 is a seesaw-type retraction mechanism 64 that retreats the roller 10 pivotally supported by rod-shaped members 61 arranged radially about the vertical axis Z from the vertical axis Z. It is configured.

  The rod-shaped member 61 is disposed from the peripheral edge 34 (FIG. 3) of the product passage hole 33 toward the vertical axis Z. A first roller 10 is pivotally supported at the front end of a rod-shaped member (seesaw) 61, and one end of a coil-type spring 11 is engaged at the rear end. The other end of the spring 11 is locked to the base 30.

  The retracting mechanism 64 is configured by a seesaw 61 that is supported by a rotating shaft 66 in a direction that coincides with a tangent (not shown) 7 of a virtual concentric circle 33 (FIG. 3) with respect to the vertical axis Z. The seesaw 61 is in the standby state as shown in FIG. 5C, and the rear end is lowered by the tension of the spring 11 stretched between the rear end and the base 30, and the roller 10 is pivotally supported. It is urged to raise the front end. Therefore, the roller 10 is elastically pushed down by the die surface 41 when the upper die 40 is lowered. Since the slope surface 15 formed on the upper surface of the loading guide frame 54 is inclined so that the inner peripheral side of the annular body is lowered, the operation of pushing down the seesaw 61 is not hindered.

  FIGS. 6A and 6B are diagrams for explaining a slider-type retracting mechanism employed in the present apparatus, in which FIG. 6A is a plan view and FIG. 6B is a side view. As shown in FIG. 6A, the second roller 20 is pivotally supported by a rotating shaft 63 in a direction that coincides with the tangent line 9 of the virtual concentric circle 8 with respect to the vertical axis Z. The other half of the rolling support mechanism 60 shown in FIG. 3 is a slider-type retraction mechanism 65 that retreats the roller 20 pivotally supported by the rod-shaped members 62 arranged radially about the vertical axis Z from the vertical axis Z. It is comprised by.

  A total of 24 sets of the rollers 10 and 20 are distinguished by 12 sets of the first rollers 10 and 12 sets of the second rollers 20. These two types of rollers 10 and 20 are alternately adjacent and arranged radially in the plan view shown in FIG. In addition, in the front view shown in FIGS. 1, 2, and 4, 12 sets of the first rollers 10 are arranged on the upper side of the base 30, and 12 sets of the second rollers 20 are arranged on the lower side of the base 30. It is installed.

  One of the two types of the first roller 10 has a convex peripheral edge 13 formed in a thin blade shape with an acute angle. The convex peripheral edge portion 13 can roll while pushing the filter sheet material 1 into the back of the valley line V formed on the mold surface 41 of the upper mold 40. Moreover, the other 2nd roller 20 has the concave peripheral part 14 formed in the canyon shape in the cross section of an axial direction. The concave peripheral edge portion 14 can roll while sandwiching the filtration sheet material 1 on both sides of the ridge line W formed on the mold surface 41 of the upper mold 40.

  As described above, both have different shapes of the peripheral edge portions 13 and 14, and also have different rolling counterparts and paths to be pushed away. The other party on which one of the first rollers 10 rolls is the valley line V of the mold surface 41, and the path to be pushed away is in the longitudinally oblique direction. The other roller on which the other second roller 20 rolls is a twill line W of the mold surface 41, and the path to be pushed away is only in the diametric direction with respect to the vertical axis Z.

  In this way, the rolling support mechanism 60 guides the path along which the 24 sets of rollers 10 and 20 are pushed away. The rollers 10 and 20 are pushed away by a conical mold surface 41 that descends against the urging force of the springs 11 and 12. For this reason, the first roller 10 has a convex peripheral portion 13 that is engaged with the valley line V of the upper mold 40 and rolls. The second roller 20 has a concave peripheral edge 14 that engages and rolls with the ridge line W of the upper mold 40. The first and second rollers 10 and 20 are elastically pressed against the mold surface 41 of the upper mold 40 by springs (biasing means) 11 and 12.

  That is, when the upper die 40 is lowered against the urging force of the springs 11 and 12, the rollers 10 and 20 are pushed away by the die surface 41. However, when the upper mold 40 is pushed away from the rolling support mechanism 60 and penetrates, the upper mold 40 forms a trap with a “maple” and is captured by the “maple”. I can't go back. Therefore, the upper mold 40 has an upper limit U and a lower limit K defined by the upper mold lifting means 50 and the like, and is restricted so as to move up and down.

  As described above, the mold surface 41 of the upper mold 40 has a ridge line W and a valley line V formed on a downward conical surface, and each of the rollers 10, corresponding to each of the ridge line W and the valley line V, 20 rolls. At this time, the circular filter paper 1 is loaded in a position sandwiched between the upper mold 40 and the rollers 10 and 20, that is, in a space G shown in FIGS. The apparatus 100 operates so that the upper die lifting means 50 moves the upper die 40 downward, and the rollers 10 and 20 interlocked with the operation press the circular filter paper 1 abutting against the die surface 41 of the upper die 40 from below. While rolling, make a crease.

  FIG. 7 is an explanatory view showing the upper mold of this apparatus and its support mechanism. FIG. 7 (A) is a plan view of a presser blade frame, FIG. 7 (B) is an upper mold fixed to a lifting frame, and upper and lower It is a side view of the slidable pressing blade. The holding blade frame 45 made of an annular plate shown in FIG. 7A is fixed to the lower ends of the two sliding suspension bars 43 so that the plate surface is horizontal as shown in FIG. 7B. ing. In this presser blade frame 45, twelve presser blades 53 are planted radially and downward at equal intervals.

  Here, the upper mold lifting means 50 lowers the lifting frame 51 in a state where the circular filter paper 1 is placed on the loading guide frame 54 (FIG. 4). Then, the lowermost portions of the upper mold 40 and the presser blades 53 are in contact with the upper surface 1P of the circular filter paper 1. The sliding suspension rod 43 is suspended from the horizontal frame 42 through a sliding engagement portion 44 so as to be slidable. At this time, the presser blade 53 that is slidable in the height direction with respect to the horizontal frame 42 maintains the height while lightly pressing the peripheral edge of the circular filter paper 1, while only the upper mold 40 is the presser blade. It passes through the upper mold passage hole 38 of the frame 45.

  The presser blade 53 has a positioning and function in which the ridge line W is extended toward the outside of the mold surface 41. That is, after the upper die 40 starts to move down, the lowermost end of the upper die 40 comes into contact with the center O of the circular filter paper 1 and at the same time the pressing blade 53 comes into contact with the vicinity of the peripheral edge 1R. At that time, the circular filter paper 1 is pushed at a total of 13 points in the vicinity of the center O and the peripheral portion 1R in a state in which the total 12 points are positioned from the peripheral portion 1R by the guide pins 55, so that the mold is not curved. It is correctly molded along the surface 41.

  According to the present invention, it is a fold folding process that is completed without touching the sheet-like filtration material as much as possible, so that bacteria and contaminants adhere from human hands, and during the fold folding process. Filtration that makes it easy to avoid problems that break filter materials and defects that lack shape identity to guarantee high-level and uniform filtration performance, making the process of creasing and forming a single filter material efficient in a short time It is possible to provide a sheet material fold device, a system and a method thereof. As a result, it is possible to save labor so that it can be folded in a short time of about 10 seconds without contamination, where it took 1 minute by hand.

[System configuration]
8A and 8B are diagrams for explaining the present system. FIG. 8A is a side view, FIG. 8B is a front view, and FIG. 8C is a perspective view immediately before the circular filter paper is detached from the mold surface. is there. As shown in FIG. 8, the system 300 includes a sheet feeding unit 70, a product receiving unit 80, and a control unit 90 that performs integrated control of the units, which can be attached to the apparatus 100 (folding unit 69) and operate. Are combined.

  The paper feeding unit 70 has a single sheet gripping means 71 for loading only one circular filter paper 1 from the replenishment space 73 by negative pressure at the timing when the upper die 40 reaches the vicinity of the upper limit U of the movable range. In addition, when this apparatus 100 (folding unit 69) is used independently, the control part 90 can be simplified greatly. Or it is unnecessary.

  The product receiving unit 80 includes at least one of a stacking height management unit 82 and a sheet-fed function 83. The stacked height management means 82 optimally manages the height F at which the fold-folded products 1X are stacked based on information obtained from the edge position detection sensor 81 and the like. The single wafer function 83 accumulates the number of stacked products 1X. The control unit 90 has a control function by a computer capable of executing a program for integrally controlling each unit. The system 300 has an advantage that each unit can be easily customized according to customer needs.

  The product receiving unit 80 will be described in more detail below. When the height of the product tray 84 is fixed, the height of the edge 1R also rises as the products 1X are stacked, resulting in inconvenience. In order to avoid this, it is convenient to make the edge 1R coincide with the height of the position detection sensor 81 shown in FIG. 8A, while keeping the pleats of the product 1X aligned over a plurality of sheets.

  The position detection sensor 81 captures the edge 1R of the product 1X shown in FIG. 9 with an infrared sensor or the like. The stacked height management means 82 automatically controls the height of the product tray 84 so as to maintain the height F at which the products 1X are stacked. The single wafer function 83 may also be used as the position detection sensor 81, which processes the visual information when the product 1X is detached from the upper mold 40 and falls to the tray 84, and determines the number of stacked products 1X. Accumulate. In addition to the integrated control of each unit, the control unit 90 includes a program for operating the stack height management means 82 and the single wafer function 83, and a computer capable of executing the optimum management.

  FIG. 9 is a perspective view showing a fold-fold filter paper formed by the present apparatus, the present unit, or the present method. As shown in FIG. 9, the product 1 </ b> X after the fold process is generally conical, and ridge lines W and valley lines V are formed radially from the vicinity of the center O of the circular filter paper 1 in the radius R direction. ing.

  As described above, the rollers 10 and 20 in contact with the vicinity of the center O lower surface 1Q roll along the ridgeline W and the valley line V of each pleat formed on the conical mold surface 41 of the upper mold 40. And emboss. In addition, about the ridgeline W and the valley line V, here, the whole product 1X is visually recognized from the outside, and is regarded as one cone-shaped mountain, and then the ridgeline W formed by the mountain fold L is used. Each is referred to as the formed valley line V.

  FIG. 10 is a flowchart for explaining the procedure of this method. As shown in FIG. 10, the present method is such that the folds of the circular filter paper 1 forming the conical bellows surface 2 by alternately forming the folds of the mountain fold L and the valley fold M at a predetermined central angle with respect to the circular filter paper 1. The folding method includes a circular filter paper loading step (S10), an embossing step (S20), and a fold-folded product dropping step (S30).

  In the circular filter paper loading step (S10), the upper die 40 that can be vertically moved up and down is raised above the base 30 to create a space G formed between the base 30 and the circular filter paper 1 is loaded therein. A loading stage based on the loading guide frame 54 is formed below the space G that appears at this time. It loads so that the circular filter paper 1 before a fold folding process may be mounted in this loading stage. In the upper mold 40, a ridge line W and a valley line V corresponding to the pleats are formed on a conical mold surface 41 with the top T directed downward.

  Next, in the die pressing step (S20), the upper die 40 is lowered vertically to push down the circular filter paper 1 from the upper surface 1P (FIG. 9). At this time, the rollers 10 and 20 in contact with the vicinity of the center O of the lower surface 1Q (FIG. 9) of the circular filter paper 1 are aligned with the ridgeline W and the valley line V of each pleat formed on the conical mold surface 41 of the upper mold 40. Along the radial direction in the radius R direction from the vicinity of the center O, embossing is performed.

  Furthermore, in the fold-folded product dropping step (S30), the upper mold 40 is lowered to the lower limit K of the stroke for moving up and down. At this time, the rollers 10 and 20 roll from the peripheral edge 1R of the circular filter paper 1 toward the outer periphery 41R (see FIG. 8C). As a result, the fold-folded product 1X is detached from the upper mold 40 that has been in contact with the mold surface 41 of the upper mold 40 and dropped.

[Modification]
This apparatus 200 is a mechanism in which the raising / lowering drive of the upper mold raising / lowering means 50 is driven only by manual operation. More specifically, as shown by an imaginary line such as a two-dot chain line in FIG. 1, the lift lever 58 and the lift connection mechanism 59 engaged therewith are configured. Since the apparatus 200 is a mechanism that is driven only by manual operation, it does not require power or air pressure, and the object can be achieved with a simple configuration. In that case, naturally the control part 90 (FIG. 8) is unnecessary. In addition, the raising / lowering lever 58 and the raising / lowering connection mechanism 59 shown in FIG. 1 are only examples.

  According to the fold-folding device, the system or the fold-folding method of the filtration sheet material according to the present invention, in addition to the advantage that bacteria and contaminants are difficult to adhere to the filtration sheet material from human hands, it is based on the shape identity. Highly efficient and uniform filtration sheet material can be produced efficiently. As a result, it was possible to save labor to the extent that it took 1 minute by hand folding up to 10 seconds without contamination. In particular, the apparatus according to the modified example constituted by a mechanism driven only by manual operation is inexpensive with a merit that a small number of circular filter papers according to demand can be folded on the spot each time it is used. And may be adopted as a simple device.

  The present invention having such advantages can be employed as a means for fold-folding circular filter paper for inspection equipment at 135 food hygiene law registered inspection organizations operating in Japan and 1722 measurement certification establishments. There is sex. In these establishments, inspection equipment that requires fold filter paper is used for food-linked analysis and environmental analysis. The present invention may be implemented each time a fold filter paper is used at such an analysis site.

1 circular filter paper (filter sheet material), 1P (filter sheet material 1) top surface, 1Q (filter sheet material 1) bottom surface, O (filter sheet material 1) center, 1R (filter sheet material 1) peripheral edge, 1X fold-fold filter paper (product), 2 (accelerated sheet material 1) bellows surface, 3 upper mold, 4 loading port, 5 presser blade axis, 6, 8 virtual concentric circle (with respect to vertical axis Z), 7, 9 ( Tangent line (of concentric circle 8), 10, 20 First and second rollers, 11, 12 Spring (biasing means), 13 Convex peripheral edge (of first roller 10), 14 Concave peripheral edge (of second roller 20) , 15 slope surface, 30 base, 32 horizontal surface (of base 30), 33, 37 product passage hole, 34 peripheral edge of (product passage hole 33), 38 upper die passage hole, 40 upper die, 41 die surface, 41R (periphery of filtration sheet material 1 in contact with mold surface 41 1R) outer peripheral side, 42 horizontal frame, 43 sliding suspension rod, 44 sliding engagement portion, 45 holding blade frame, 50 upper mold lifting means, 51 lifting frame, 52 upper suspension rod, 53 pressing blade, 54 Loading guide frame, 55 guide pin, 56, 57 guide hole, 58 lifting lever, 59 (completed only by manual operation) lifting mechanism, 60 rolling support mechanism, 61, 62 rod-shaped member, 63 (for rollers 10, 20) Rotating shaft, 64 (seesaw type first) retracting mechanism (seesaw), 65 (slider type second) retracting mechanism (slider), 66 seesaw shaft, 67 slider guide holder, 69 fold folding unit, 70 sheet feeding unit, 71 Single sheet gripping mechanism (means), 73 replenishment space, 80 product receiving unit, 81 edge position detection sensor, 82 stacking height Management means, 83 sheet function, 84 product tray, 90 control unit, 91 operation receiving unit, 100,200 Filtration sheet material fold folding device, 300 filtration sheet material fold folding system, E reference point, F (Product 1X is Height (stacked), G space, H (upper die 40) height, K (lower limit of movable range), L mountain fold, M valley fold, N fold number, O (circular filter paper 1) center , W ridge line, V valley line, S10 filtration sheet material loading process, S20 embossing process, S30 fold-fold product dropping process, T top T, U (of movable range) upper limit, Z vertical axis

Claims (8)

A fold-folding device for a filter sheet material that forms a conical bellows surface by alternately forming folds of mountain folds and valley folds at a predetermined central angle with respect to a circular filter sheet material,
An upper mold for embossing the filtration sheet material from above with a conical mold surface in which ridge lines and valley lines corresponding to the folds are alternately formed;
In order to raise and lower the upper mold along a vertical axis penetrating the center of the upper mold vertically, upper mold lifting means disposed on the base,
In conjunction with the movement of the upper mold lifting means from the operating position higher than the lower limit of the movable range by the height of the upper mold to the lower limit,
A roller disposed by the number of the pleats so as to roll the mold surface in a radial direction along the ridge line and the valley line from the top of the conical shape;
Urging means for pressing the roller against the upper mold surface;
A rolling support mechanism disposed on the base for guiding a path along which the roller is pushed away by the lowering mold surface against the biasing means;
With
In accordance with the operation of lowering the upper mold by the upper mold lifting / lowering means, the filter sheet material sandwiched between the mold surfaces is rolled while the roller is pressed against the filter sheet material to make a crease. Folding device. The rolling support mechanism is
A rod-like member having a rotation axis arranged in a tangential direction of a virtual circle centered on the vertical axis disposed at the tip;
A retraction mechanism that retreats the rollers individually supported by the rotation shaft in a direction away from the vertical shaft according to the movement of the rod-shaped member;
With
The roller is
A first roller having a convex peripheral edge that engages and rolls with the valley of the upper mold;
A second roller having a concave peripheral edge that engages and rolls with the ridgeline of the upper mold;
The fold-folding device for a filter sheet material according to claim 1, which is configured by: The first roller is capable of rolling while the convex peripheral portion formed in an acute angle and in a thin blade shape pushes the filter sheet material into the back of the valley line,
The said 2nd roller can roll while the said concave peripheral part formed in the canyon shape in the cross section of an axial direction covers the said filter sheet material on both surfaces of the said ridgeline, and is pinched | interposed. The fold-folding device for the filtration sheet material described. The base is disposed with a horizontal surface having a height substantially matching the operating position,
In the horizontal plane, a product passage hole through which the upper mold can pass is formed in a substantially central portion,
The rod-shaped member is disposed from the peripheral part of the product passage hole toward the vertical axis,
4. The filter sheet material according to claim 2, wherein the roller waits in a posture in which the upper die prevents passage of the product passage hole and is pushed away when the upper die passes and is retreated. Fold fold device. The retraction mechanism is
A first retraction mechanism configured in a seesaw shape with the first roller on the upper surface of the base;
A second retracting mechanism configured in a slider shape with the second roller on the lower surface of the base;
A fold-folding device for a filter sheet material according to any one of claims 2 to 4.   The fold-folding device for a filter sheet material according to any one of claims 2 to 5, wherein the elevating mechanism of the upper mold elevating means is driven only by manual operation. A filtration sheet material fold folding system that combines units operable by being attached to the filtration sheet material fold folding device according to claim 1,
A sheet feeding unit having a single sheet gripping means for loading only one sheet of the filtration sheet material from the replenishment space by a negative pressure at a timing when the upper mold reaches the vicinity of the upper limit of the movable range;
A product receiving unit having at least one of a stacked height management means for managing the height at which the fold-folded products are stacked with an edge position detection sensor, or a sheet-fed function for accumulating the number of stacked products. ,
A control unit that has an operation reception unit and performs integrated control of each unit;
A fold fold system for filtration sheet materials. A fold-folding method for a filter sheet material in which a fold of a mountain fold and a valley fold are alternately formed on a circular filter sheet material to form a conical bellows surface,
A filtration sheet material in which the upper mold in which valleys and ridge lines corresponding to the folds are formed on a conical mold surface with the top facing downward is lifted from the base, and the filtration sheet material before fold folding is loaded. Loading process;
By lowering the upper die and pushing down the filter sheet material from the upper surface, a roller that contacts the vicinity of the center of the lower surface rolls in the radial direction of the pleats along the ridge line and the valley line to push the mold. Embossing process;
A pleat from which the product after the fold-folding process is separated from the upper mold and dropped by the roller rolling from the peripheral edge of the filter sheet material in contact with the mold surface of the upper mold that is further lowered. Folding product dropping process,
A method for folding a filter sheet material.