JP2007075883A - Powdery body striking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress occurrence of variance in the packing state of powdery bodies within a vessel, further, to suppress occurrence of defects caused, e.g., by unevenness in color upon compression molding of powdery bodies, and to facilitate cleaning as well. <P>SOLUTION: The powdery body striking device 28 where, before powdery bodies fed onto a vessel 1 are subjected to compression molding, the surface layer parts of the powdery bodies are struck so as to level the surfaces, and further, the packing quantity in the vessel 1 is made uniform is composed of a rotary body 26. Preferably, the operating direction of the part(s) which takes the part in the operation of striking the powdery bodies in the rotor 26 is made parallel to the moving direction of the vessel 1. Further, a cleaning device 27 of cleaning the part which does not take the part in the operation of striking the powdery bodies in the rotor 26 is jointly provided. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a powder grinder. More specifically, the present invention is for grinding a powdery body including various cosmetics such as granules, powders, powders, etc., to smooth the surface before the compression molding step, and to make the filling amount uniform. It relates to the structure of the device.

  Conventionally, for example, powdery objects including various cosmetics such as granules, powders, powders, and the like represented by cosmetic foundations (in the present specification, these are collectively referred to as “powder”). 2. Description of the Related Art A compression molding apparatus for forming a desired shape by pressing (pressing) is used.

  In this compression molding apparatus, the surface layer portion of the powdery body is ground and smoothed before the powdery body supplied to the container or the like is compression molded, and the filling amount of the powdery body in the container is determined. Many are equipped with an apparatus for grinding powdery bodies for homogenization. As such a powdered material grinder, for example, a part of a shutter for opening and closing the supply port of the powdery material is used for grinding, or a grind rod integrated with the shutter is used. The thing etc. are known (for example, refer patent document 1 and patent document 2).

Here, as one specific example, the powder cutting device shown in FIG. 13 opens and closes the supply port of the powder using the shutter 101 that reciprocates at a constant stroke, and further cuts the supplied powder. Is to do. This shutter 101 reciprocates in the radial direction of a turntable (table for rotating and moving each container 103 to carry out each process such as powder supply, compression molding, and surface cleaning) 102, First, after sliding toward the center of the turntable 102 to open a powder body supply port of a powder body hopper (not shown) and supplying a certain amount of powder body to the container 103 through the powder body passage hole 103, This time, the powder body supply port is closed by sliding in the reverse direction (the outer peripheral direction of the turntable 102). At this time, the surface of the powdery body is scraped off by using the edge of the powdery body passage hole 103 to scrape off the surplus, and the filling amount is made uniform and the surface thereof is smoothed.
JP-A-2005-118786 JP 2003-39197 A

  However, the shutter 101 having the above-described structure (shutter having a scraping function provided so as to fulfill a function as a scraping device) 101 has the following problems. That is, first, when the powdery body adheres to the surface and the shutter 101 is soiled, uneven color spots (unevenness) may occur in the molded product (powdered body such as compression-molded cosmetics). In other words, irregularities are formed on the surface of the molded product, resulting in a defective product.

  Second, it takes time and effort to clean the dirty shutter 101. In other words, in cleaning the shutter 101, the molding apparatus is temporarily stopped, the shutter 101 is removed and cleaned, and the apparatus is restarted after being reattached. For example, it takes 5 to 10 minutes for each cleaning, and such cleaning may be performed about 5 times a day, for example, and takes about 30 to 50 minutes a day. Yes. Therefore, extra time and labor are required for this amount, which hinders improvement in production efficiency.

  Third, when the shutter 101 is used to scrape off the powder, the filling state of the powder may vary. One reason for this is that the shutter 101 strokes in the radial direction with respect to the rotating turntable 102, that is, adopts a structure that slides in the vertical direction with respect to the movement of the container 103 and the powdery body. (See FIG. 13). That is, during the grinding operation, the powdery body generally tends to be dragged, so that it is biased in the radial direction (for example, the outer peripheral side) in the container 103, and when the turntable 102 rotates, The supply balance in the container 103 is disturbed such that the powdery body is further biased in the circumferential direction (rotation direction) in the container 103 due to the influence, and the state of entering the powdery body after pressing may vary.

  Therefore, the present invention can suppress the occurrence of variation in the state of the powdery body in the container, and can further suppress the occurrence of defects due to color spots during compression molding of the powdery body. An object of the present invention is to provide a powder grinder that can be easily washed.

  In order to solve the above problems, the present inventor has made various studies, and as a result, has come to know a technique that can effectively avoid the above-described problems. That is, paying attention to the structure itself that moves linearly as represented by the above-described grinding device (for example, the shutter that also has a function as a grinding device in the above example), the conventional original structure We obtained new knowledge that leads to problem solving by reviewing

  The present invention is based on such knowledge, and the invention according to claim 1 scours the surface of the powdery body by grinding the surface of the powdery body before the powdery body supplied on the container is compression molded. At the same time, in the powder grinder for uniformizing the filling amount in the container, it is constituted by a rotating body.

  In the case of a conventional device that slides in the radial direction of the turntable and performs the grinding operation, the powder movement direction and the grinding direction do not match, so the powder supply balance is disturbed and the state of entry varies. However, simply changing the direction of the slide by 90 degrees does not lead to the solution of other problems (dirt surface of the scraping device, extra time and labor required for cleaning). In this respect, according to the rotary powder grinder configured by the rotating body, the powder moving direction and the grind direction are at least not perpendicular to each other to improve the state of entering the powder, By adopting a mechanism for cleaning a part of the rotating body, it is possible to reduce surface contamination, and extremely reduce the time and labor required for the cleaning process.

  As described in claim 2, the rotating body in such a powder grinder is configured such that an operation direction of a portion of the rotating body involved in an operation of rubbing the powder is determined by the movement of the container. It is preferable to be provided so as to be parallel to the direction. The closer to the parallel state, the less the supply balance is disturbed by matching and offsetting the bias direction of the powder in the container.

  The invention according to claim 3 is the powder grinder according to claim 1 or 2, wherein the washing device for washing a portion of the rotating body that is not involved in the operation of rubbing the powder. It is characterized by being attached. Using the cleaning device, it is possible to clean a portion that is not involved in the scraping operation.

  In this case, the cleaning device is fixedly disposed at a predetermined position as described in claim 4, and automatically cleans the rotating body by utilizing the rotation of the rotating body. It is preferable that In this case, it is possible to clean a portion that is not involved in the grinding operation by using the rotation operation of the rotating body. In addition, since the cleaning device is fixedly arranged, the space required for installation can be reduced.

  Furthermore, the invention described in claim 5 is a powder supply for a rotating body in the powder cutting apparatus according to any one of claims 1 to 4 to supply the powder to the container. It is composed of a rotary shutter that opens and closes the mouth, and has both a function as a shutter and a function as a scraping device. In addition to the function as a shutter for opening and closing the powdery substance supply port by rotating, the rotating body in the present invention also exhibits a function as a device for scraping the powdery substance using the rotation operation.

  The rotating body in this case is a powder body passage part for supplying the powder body and an area other than the powder body passage section, and the powder body supply port as described in claim 6 It is preferable that it is formed by a plate-like member provided with a shut region for closing. The plate-like rotating body alternately switches the powder body passing portion and the shut region so that the powder body is supplied by a predetermined amount, and the surface layer portion of the supplied powder body is rotated. Grind and smooth the surface.

  Furthermore, in this case, the powder grinder is provided with a plurality of the powdery substance passage portions as described in claim 7, and the plurality of powdery substance passage parts are centered on the rotation axis of the rotating body. Are preferably arranged evenly. In such a case, the amount of rotation of the rotating body required for the supply of the powdery body and the grinding operation is reduced accordingly. Further, if they are evenly arranged, the feeding and cutting operations can be performed at regular intervals (constant pitch) by rotating at a constant speed or an equal amount.

  Moreover, it is preferable that the said powder body grinder is an apparatus with which the said rotary body is provided so that both forward and reverse rotation is possible, as described in Claim 8. For example, if the relative speed between the turntable and the rotating body is increased, the powdery body can be more quickly worn, thereby making it possible to make the surface sharper and at a constant height. On the contrary, if the relative speed is decreased, it is possible to proceed with each process while reducing the frictional resistance between the powdery body and the surface of the rotating body.

  According to the powder grinder according to claim 1, since the powder grinder is constituted by a rotating body, by adjusting the moving direction of the powder to coincide with the grind direction, It is possible to improve the state, and thereby it is possible to suppress the occurrence of variation in the state of the powdery body in the container. Further, if surface contamination is reduced by cleaning a part of the rotating body, it is possible to suppress the occurrence of defects due to color spots or the like during compression molding of the powdery body.

  According to the powder grind apparatus according to claim 2, the operation direction of the part involved in the grind of the rotating body is parallel to the moving direction of the container. For example, if the relative rotation direction of the turntable and the rotating body is adjusted to offset the unevenness of the powdery body in the container, the supply balance is reduced and the powdery state is further improved. can do.

  According to the powder grind apparatus according to claim 3, it is possible to clean a portion of the rotating body that is not involved in the operation of rubbing the powder powder, using the cleaning device provided therewith. Therefore, it is possible to clean the surface of the rotating body at the same time as the operation of scraping the powdery body and keep it clean at all times. Or the formation of irregularities on the surface of the molded product can be suppressed, and the generation of defective products can be effectively suppressed.

  According to the powder grinder according to claim 4, since a large space is not required for installing the cleaning device, the entire device can be easily put together in a compact manner. That is, in the present invention, since the rotating body is adopted as a constituent element of the powder grinder, the state of entering the powder can be improved as described above. Since it is easy to take an arrangement in which the portion not involved in the portion does not overlap the turntable, it is easy to adopt a configuration in which the portion not involved in the washing is washed. In addition, if a cleaning device is fixed as in the present invention, a large space is not required for installation, and if the rotating body is rotated in this state, a part of the rotating body is always automatically cleaned. It is convenient to be able to. In addition, since the rotating body can be effectively cleaned at all times, the troublesome operation of temporarily stopping and removing the apparatus to perform cleaning, cleaning, and reattaching is unnecessary. For this reason, it is possible to omit the extra time and labor conventionally required and to improve the production efficiency.

  According to the powder grinder according to claim 5, the function as the shutter that opens and closes the powder material supply port by the rotating body that also has a function as a shutter, and the powdery body with the rotating operation. Both functions as a grinding device for grinding the surface layer portion can be exhibited. In this case, since the member which has two functions is comprised by one member (for example, plate-shaped member), there also exists an advantage that an apparatus can be reduced in size and simplified.

  According to the powder grind apparatus according to the sixth aspect, the powder-like body passing portion and the shut region can be alternately switched by rotating the plate-like rotating body. In such a case, the powdery body can be supplied by a predetermined amount, and the surface layer portion of the supplied powdery body can be scraped using a rotating operation and the surface can be smoothed.

  According to the powdery object scraping device according to claim 7, since a plurality of the powdery substance passage portions are provided, the amount of rotation of the rotating body required for the supply of the powdery substance and the scraping operation is reduced accordingly. There is an advantage that it can be done. In addition, since the plurality of powdery body passage portions are evenly arranged around the rotation axis, supply and grinding operations can be performed at equal intervals if rotation is performed at a constant speed or an equal amount. It is suitable for proceeding accurately.

  Further, according to the powder grinder according to claim 8, the surface is sharpened by increasing the relative speed between the turntable and the rotating body to more quickly grind the powder, It is convenient that the frictional resistance between the powdery body and the surface of the rotating body can be reduced by reducing the speed.

  Hereinafter, the configuration of the present invention will be described in detail based on an example of an embodiment shown in the drawings.

  1 to 8 show an embodiment of a powder grinder according to the present invention. This powder grinder 28 is used to grind the surface layer of the powder 2 before the powder 2 supplied onto the container 1 is compression-molded to smooth its surface and to fill the container 1 The amount is made uniform. In the embodiment described below, a case will be described in which this powder grinder 28 is used as an apparatus that constitutes a part of a compression molding apparatus for powder 2 (see FIG. 1 and the like).

  Here, the compression molding apparatus of the powdery body is an apparatus for pressurizing the powdery body 2 supplied on the dish-shaped container 1 with a pad 3 or the like and compressing the powdery body 2 on the container 1. In the present embodiment, a suction device 5 capable of sucking air and a vent hole 4 for venting air generated when pressurizing the powdery body 2 are provided. Air is sucked through (see FIG. 1 and the like). In the following, an embodiment in which such a compression molding apparatus is applied to a powdery body (hereinafter also simply referred to as “cosmetic”) 2 as a cosmetic will be described. Here, the powdery body 2 as a cosmetic is, for example, a foundation molded in a compact. Hereinafter, an embodiment in the case of targeting “various cosmetics such as granules or powder” as the powdery body 2 will be described.

  First, it demonstrates from the outline at the time of compression-molding the above-mentioned cosmetics 2 (refer FIG. 2). In the present embodiment, a turntable 10 as shown in FIG. 2 is used, and the respective steps are sequentially performed by rotating the turntable 10 clockwise in the drawing. Here, all six steps (including empty steps) are arranged at intervals of 60 degrees, No. 1 in the figure supplies container 1, No. 2 supplies powder 2, and No. 4 powders. Each process of compression molding of the body 2 and cleaning of the upper surface of the product (powdered body 2 and container 1 after compression molding) is No. 5. A discharge unit is provided between the No. 5 position and the No. 6 position for discharging the product from the turntable 10. Note that No. 3 in the present embodiment is an empty process, so it is easy to cope with a change in process. On the turntable 10, six mounting spaces 11 each including, for example, a round recess for temporarily holding the container 1 are provided (see FIG. 2).

  The outline of the above-described process and each apparatus for performing the process will be briefly described below (see FIG. 2). The container supply unit that supplies the container 1 (No. 1) receives the container 1 conveyed on the container supply path 12, and then uses the container feeder (not shown) to place the container 1 on the turntable 10 described above. Is placed in the mounting space 11. The container 1 in this embodiment is, for example, a so-called compactly mounted dish as a cosmetic, and corresponds to a resin dish made of resin, a metal gold dish, or the like.

  The powder supply unit for supplying the powder 2 (No. 2) supplies a predetermined amount of the powder 2 onto the container 1 placed in the placement space 11. Although not specifically described in this specification, the powder supply unit is a fixed hopper, an eccentric hopper or an eccentric hopper (hereinafter collectively referred to as a hopper, which supplies the powder 2 by a predetermined amount. ), A powder supply sub-hopper unit for appropriately supplying and replenishing the powdery body 2 to the hopper 31, and a slide on the turntable 10 so as to close or open the powder supply port 31a of the hopper 31 In addition, it is constituted by a rotating body 26 having a function of scraping off the excess powdery body 2 on the container 1.

  The press unit 13 that performs compression molding (No. 4) is an apparatus for pressurizing and molding the powdery body 2 supplied onto the container 1. The press unit 13 applies pressure so as to sandwich the powder body 2 and the container 1 from above and below using, for example, hydraulic pressure. In this embodiment, the pad 3 is applied from above the powder body 2 and the container 1. The pressure is applied as applied.

  Cleaning the surface of the product (powdered compact 2 and container 1) (No. 5) is performed using a press surface air cleaner. This press surface air cleaner performs cleaning by blowing away the remaining press powder (burrs or the like) around the container 1 with air or sucking it with a dust collector after compression molding.

  The discharge unit is a device for lowering the product from the turntable 10 and discharging the product after cleaning the upper surface from the No. 5 position to the No. 6 position.

  Further, a turntable cleaner 14 is provided between the No. 6 position and the No. 1 position (see FIG. 2). The turntable cleaner 14 cleans the surface of the turntable 10 that rotates clockwise in FIG. 2 and keeps the adhered powdery body 2 and the like clean.

  Next, the configuration of the above-described powdery body supply unit (No. 2) will be described in more detail (see FIGS. 8 and 9). In the present embodiment, a rotary shutter (hereinafter referred to as a rotary shutter) configured by, for example, a disk is employed as the above-described rotating body 26. The rotary shutter 26 is formed with a powder passage hole 26a for allowing the powder (cosmetics) 2 to pass therethrough. The powdery body passage hole 26a allows the powdery substance 2 to pass through the state in which the powdery substance supply port 31a of the hopper 31 and the mounting space 11 of the turntable 10 are in communication with each other. It is intended to be done. It is sufficient if at least one powdery substance passage hole 26a is provided in the rotary shutter 26. However, if a plurality of powdery substance passage holes 26a are provided, if a plurality of powdery substance passage holes 26a are provided, the powdery substance passage hole 26a is adjacent to the powdery substance passage hole 26a. There is an advantage that the amount of rotation of the rotary shutter 26 until it is switched to is small, and on the other hand, it is necessary to secure an area other than a hole sufficient to completely block the powdery substance supply port 31a of the hopper 31. There is also. From the above viewpoint, the number of the powdery body passage holes 26a provided in the rotary shutter 26 is preferably 2 to 4, and most preferably 3 as in the present embodiment. In this embodiment, all the three powdery body passage holes 26a have the same diameter and a circle, and are provided at equal intervals in the circumferential direction (in this case, every 120 degrees) (see FIG. 8). When these powdery substance passage holes 26a are not located between the powdery substance supply port 31a and the mounting space 11, portions other than the powdery substance passage hole 26a in the rotary shutter 26 (this specification) In the book, this part is called a shut region, which is indicated by reference numeral 26b), is located between them, and the powdery substance supply port 31a is closed (closed) and the supply of the powdery substance 2 is cut off. It becomes a state.

  In addition, although the circular rotary shutter 26 provided with three powdery body passage holes 26a is illustrated here as a preferable example (see FIG. 8), in the powdery material grinding apparatus 28 of this embodiment, Of course, it is possible to employ the rotary shutter 26. As another example (see FIG. 10), in addition to the circular rotary shutter 26 (FIG. 10A) described above, a rectangular rotary shutter 26 (see FIG. 10) provided with four powdery body passage holes 26a. 10 (B)), a substantially octagonal rotary shutter 26 (FIG. 10C) provided with four powdery body passage holes 26a. Moreover, although the powdery body passage hole 26a has been shown as a good example of the part through which the powdery body 2 passes so far, it is not necessarily required to be a hole if the powdery body 2 can be passed through and can be scraped off. For example, as shown in FIG. 10 (D), the cut-out portion of the rectangular plate with the four corners cut out may be used as a powdery body passage portion (indicated by reference numeral 26a in FIG. 10 (D)). it can. Furthermore, the shape of the powder passage hole (powder passage portion) 26a is preferably a circle or a shape matched to the container 1, but from the same viewpoint as the above, the shape is not limited to these, and is rectangular. Other shapes such as can be used.

  Further, the material of the rotary shutter 26 will also be described. A smooth and plate-like metal material such as stainless steel or titanium is preferable, but it is not limited to this. In addition, it is possible to use a member formed of a material that can be coated such as Teflon (registered trademark) coating or metal plating, or a member made of hard resin such as acrylic or PET.

  Further, the rotary shutter 26 is located at a position where the above-mentioned powdery body passage hole 26a can be interposed between the powdery substance supply port 31a of the hopper 31 and the mounting space 11 located at No. 2 above. Be placed. For example, in the present embodiment, the rotary shutter 26 is arranged so that the shutter rotation shaft 30 that is the rotation center thereof is located near the outer periphery of the turntable 10 (see FIG. 8). However, this is merely an example of the arrangement, and various modes can be used according to the size and shape of the rotary shutter 26. In short, the powdery material passage hole 26a can be positioned between the powdery material supply port 31a and the mounting space 11, and other processes (for example, the adjacent No.1 process) are hindered. The position of the rotary shutter 26 is not particularly limited as long as it is arranged so as not to exist.

  As shown in FIG. 9, a driving device 29 for rotating the rotary shutter 26 by a predetermined amount is provided. The driving device 29 is a device constituted by, for example, a stepping motor, a servo motor, a motor with a clutch, etc. For example, by performing index control, the rotary shutter 26 is smoothly rotated and further rotated by a predetermined amount. By the way, it is comprised so that it can be made to stop. Incidentally, the predetermined amount referred to here is a rotation amount necessary and sufficient to alternately switch between the closed state and the opened state of the powdery substance supply port 31a of the hopper 31, and as an example, In the case of the present embodiment in which the powdery body passage holes 26a are arranged every 120 degrees, it is 60 degrees. Further, as in the present embodiment, it is preferable that the driving device is capable of rotating the rotary shutter 26 in both forward and reverse directions (see FIG. 8).

  Further, in the present embodiment, the above-described rotary shutter 26 is also made to function as a powdery material scraping device 28 for smoothing the surface of the powdery material 2 after being supplied. That is, in order to make the quality of the product constant and high, after supplying the powdery body 2 onto the container 1, the surface of the powdery body 2 is scraped once, and an extra powdery state is obtained. The process of scraping the body 2 to make a certain amount, smoothing the surface and smoothing, and then shifting to compression molding (No. 4) has been conventionally carried out. In this embodiment, the above-described rotary shutter is used. 26 is also used as a device for performing such a grinding operation. Specifically, first, the rotary shutter 26 described above is provided in parallel with the turntable 10 so as to rotate while being in contact with the surface of the turntable 10, and when rotating, the bottom side of the powder passage hole 26a. It is set as the structure which can be made to rub off the surface of the powdery body 2 by the edge of. That is, if the rotary shutter 26 is rotated in order to open and close the powdery material supply port 31a, the compression molding apparatus of the present embodiment also performs the operation of scraping the powdery material 2 after the supply simultaneously with this operation. It has a structure that can.

  Here, in the case of the present embodiment in which the rotary shutter 26 that can be rotated as described above is also used as the powder grinder 28, the effect of stabilizing the entry of the powder 2 can be obtained. . That is, for example, in the case of a structure in which the shutter strokes in the radial direction as in the prior art, since the direction of the scraping operation and the moving direction of the powder body 2 are perpendicular, the powder body 2 in the container 1 approaches the outer peripheral side. However, in the present embodiment, such a bias can be eliminated. In other words, since the powdery body 2 is worn using the rotary shutter 26, the biased direction (specifically, the circumferential direction) of the powdery body 2 in the container 1 accompanying the rotation of the turntable 10 and rotation. It is possible to match the cutting direction (similarly circumferential direction) of the powdery body 2 using the type shutter 26, and it becomes possible to adjust the bias to achieve a filling balance. Specifically, if the direction in which the powdery body 2 is biased when the turntable 10 is rotated and the direction in which the powdery body 2 is biased at the time of scraping are opposite to each other, the bias is offset so that the balance in the circumferential direction is disturbed. It is possible to reduce the amount of the powdery material 2 and to stabilize the powdery material 2. Needless to say, in the rotary shutter 26 in this case, the operation direction of the part of the rotary shutter 26 that is involved in the operation of rubbing the powdery body 2 is parallel to the moving direction of the container 1. It is desirable to be provided.

  Further, in the case of the compression molding apparatus in which the powdery body 2 is worn by using the shutter as described above, it is preferable to have a function for cleaning dirt that often adheres to the shutter portion. . In the present embodiment, a cleaning device (hereinafter also referred to as a cleaning unit) 27 and a dust collecting hose 27a are provided together with the rotary shutter 26 so that the surface of the rotary shutter 26 can be cleaned simultaneously with the rotation of the rotary shutter 26. In other words, it constitutes an automatic cleaning shutter (auto cleaning shutter). In this case, the arrangement of the cleaning unit 27 is not particularly limited, but it is preferable that the cleaning unit 27 be arranged so as not to increase the size of the compression molding apparatus and to effectively clean the dirt adhering portion. In the present embodiment, the cleaning unit 27 is disposed in a portion of the rotary shutter 26 that does not overlap with the turntable 10 (in other words, a portion that is not involved in the operation of rubbing the powdery body 2). As a result, it is possible to effectively wash while suppressing an increase in size (see FIG. 8). That is, for example, when the same mechanism as that of the cleaning unit 27 is intended to be provided for a stroked linear motion type shutter, the powdery substance passage hole 26a and its peripheral portion where dirt is actually attached are effectively cleaned. In order to achieve this, a large stroke width that is sufficiently separated from the turntable 10 is required, which tends to increase the size and complexity of the entire apparatus, but the shutter as in the present embodiment. In the case of the rotary type, a portion of the rotary shutter 26 that does not overlap with the turntable 10 can be effectively cleaned. Therefore, the cleaning unit 27 can be separately installed without changing the structure of the rotary shutter 26, and the surface of the rotary shutter 26 can be cleaned while reducing the size of the entire apparatus and making it compact. Become.

  In addition, in the portion of the rotary shutter 26 that does not overlap the turntable 10, the powdery material passage hole 26 a to which dirt easily adheres and the peripheral portion thereof are sufficiently separated from the outer peripheral portion of the turntable 10 ( (See FIG. 8). Therefore, in the case of the structure as in the present embodiment, there is also an advantage that the attached dirt can be easily cleaned effectively.

  In addition, in the case of the present embodiment, the surface can be cleaned as the shutter 26 to be cleaned rotates. The cleaning unit 27 can be movable or fixed. For example, even if the cleaning unit 27 is fixed, the surface of the cleaning unit 27 can be automatically cleaned by using the rotation operation of the shutter 26. Further, when the cleaning unit 27 is a fixed type, there is an advantage that the mechanism is complicated and the possibility of increasing the size is reduced. However, the above description does not mean that the cleaning unit 27 is limited to a fixed type. For example, a linear motion type cleaning unit 27 that strokes along the radial direction of the rotary shutter 26 may be configured. Alternatively, the cleaning unit 27 itself may be configured to rotate (see FIG. 12). If the cleaning unit 27 is also operated in conjunction with the operation of the rotary shutter 26, it is possible to further clean the shutter surface.

  Here, the material and the like of the cleaning unit 27 will be described as follows. That is, the cleaning unit 27 is preferably formed of a material that does not damage the surface of the shutter 26. From this viewpoint, in particular, a structure using a brush, a structure using a scraper (scraping off), A dust structure is preferable. In this embodiment, the brush 27b is used to remove dirt on the surface, and the dirt is collected using a dust collector (not shown) (see FIG. 9). Further, for example, a cleaning may be performed with a resin brush, a resin scraper, a cloth, a nonwoven fabric, rubber, paper, a liquid such as a cleaning liquid, a cloth / nonwoven cloth soaked with a cleaning liquid, or the like.

  The configuration of the powdery body supply unit (No. 2) has been described in detail above, but the configuration of the press unit 13 will be described in further detail (see FIG. 1 and the like). In the present embodiment, the pad 3 described above is held by the pad base 15, and a hollow support member (hereinafter referred to as “support pipe”) 8 is attached to the pad base 15 so that it can be operated from above. ing.

First, the pad 3 will be described. As described above, the pad 3 is a mold for pressurizing from above the powdery body 2 and the container 1 and is supported by the support pipe 8 and the pad base 15 described above. The pad 3 of this embodiment is supported in a state of being fixed in a recess 15 b provided in the pad pace 15. The shape of the pad 3 can take various shapes according to the shape at the time of molding of the powdery body 2 to be pressurized. For example, in this embodiment, a rectangular shape with four rounded corners is provided. (See FIG. 7). Although not particularly shown in the drawings, the upper surface of the pad 3 in the present embodiment has a shape provided with a cut. This incision has a function of circulating the air of the powdery body 2 to the support pipe 8 and further ensuring the strength of the pad 3 itself. Further, the pad 3 is provided with a vent hole 4 for allowing air to pass therethrough. The air holes 4 are provided to allow air generated when the powdery body 2 is pressurized to pass through and escape, and as many holes as possible should be evenly arranged so that they are almost equally spaced. Is preferred. In addition, if the hole diameter is too large, the surface shape of the powdery body 2 may be affected when it is pressure-molded. Therefore, in order to avoid this, the diameter should be made as small as possible without impeding ventilation. It is preferable to form. As a specific example, in this embodiment, for example, the hole diameter is 0.2 to 0.3 mm, the number of holes is about 15 / cm ² , and the holes are arranged at equal intervals in a plurality of rows. ing. The pad 3 is preferably formed to be slightly smaller than the inner shape of the container 1 and has a clearance with the container 1. When such a clearance is provided, it is preferable because air at the time of compression molding easily escapes from the side of the pad 3. However, in the case of this embodiment in which a large number of vent holes 4 are provided in the pad 3 itself, a clearance smaller than usual (for example, a clearance of about 0.2 mm) is sufficient.

  The pad base 15 is a member for holding the pad 3 described above. As shown in FIG. 4, the pad base 15 of this embodiment is circular in plan view, provided with a step portion 15a on the top surface, and further provided with a concave portion 15b matching the shape of the pad 3 on the bottom surface. . The depth of the recess 15b is shallower than the thickness of the pad 3 (for example, about half), and only a part of the pad 3 (for example, about the upper half) is accommodated (see FIG. 5). In addition, a communication hole 16 is formed in the center of the pad base 15 so as to communicate from the suction device 5 to the pad 3 to the recess 15b from the upper surface of the pad base 15. As a result, it is possible to suck the air generated from the gap between the powdery bodies 2 during compression molding in the order of the vent hole 4 of the pad 3 → the communication hole 16 → the vent path 9 of the support pipe 8 → the suction device 5. Yes. A part of the communication hole 16 is formed with a female screw (female screw) 15c for screwing a male screw (male screw) 8a provided at the lower end of the support pipe 8 (see FIG. 5).

  As described above, the hollow support pipe 8 is attached to the pad base 15. The support pipe 8 is supported by the press unit 13 described above, and is provided so as to be moved up and down by a driving device such as a motor (not shown) (see FIG. 1). The above-described male screw 8 a is cut at the lower end portion of the support pipe 8, and the lower end portion can be attached to and detached from the upper surface of the pad base 15. On the other hand, a female screw 8b is cut at the upper end of the support pipe 8, and a joint (not shown), which is a member for mounting the vacuum hose 17, is attached. Although not particularly illustrated, one end of the vacuum hose 17 is attached to the joint, and the other end is attached to the suction device 5 to connect the suction device 5 and the support pipe 8. Further, as described above, the support pipe 8 has a hollow shape, and the hollow portion functions as an air passage 9 communicating with each air hole 4 of the pad 3. The material of the support pipe 8 is not particularly limited, but stainless steel is preferable because it is lightweight and can provide desired strength. Further, the support pipe 8 of the present embodiment is formed in a so-called T shape in which a horizontal bar 18 is provided at an upper end portion thereof, so that handling (manual operation) is easy (see FIGS. 1 and 3). .

  Further, in the present embodiment, a side hole 19 leading to the above-described air passage 9 is provided in the middle of the side portion of the support pipe 8 (see FIG. 3 and the like). An air hose 20 for sending air to the air passage 9 is connected to the side hole 19, and an air pump 7 is provided at the end of the air hose 20. This air pump 7 is a device that can blow air. For example, in the case of the present embodiment, after press molding, the air pump 7 and the air hose 20 are used to release the negative pressure state or air is sent in. The powdery body 2 that is pressed during press molding and is in close contact with the pad 3 can be separated from the pad 3 by peeling off.

  Although the press method in the press unit 13 is not particularly limited, for example, in the present embodiment, press forming is performed by moving up and down a press table 21 constituting a lower device of the press unit 13. More specifically, the lower unit of the press unit 13 in the present embodiment includes a press table 21, a mold holder 22 that functions as a support table for the press table 21, and a cylinder device that raises and lowers the press table 21 together with the mold holder 22. 23 (see FIG. 1). Further, at the time of press molding, the powdery body 2 is press-molded so that the press stand 21 as a male mold fits into the female die 32 shaped to fit into the mounting space 11 described above (FIG. 1). FIG. 9).

  The press table 21 is a member constituted by, for example, a metal mold that functions as a male mold as described above, and is formed into a shape that fits into the female mold 32, for example, a prismatic shape having a substantially rectangular plane in this embodiment. ing. At the time of press molding, the container 1 supplied with the powdery body 2 is placed on the upper surface of the press table 21 (see FIG. 1). The center of the bottom of the press table 21 is supported by a mold retainer 22 (see FIG. 1). The mold retainer 22 and the press stand 21 are provided so as to be lifted and lowered by the action of the cylinder device 23. For example, in the case of the present embodiment, the cylinder device 23 is provided so as to be able to reciprocate with a constant stroke width in the vertical direction (see FIG. 1).

  Moreover, when the powdery body 2 is press-molded, the powdered body 2 that is pressurized while being sucked may be in close contact with the pad 3 directly or indirectly with a cloth 6 interposed therebetween, It is preferable that a mechanism or a device for making it possible to easily separate the powdery body 2 after molding and the pad 3 by separating them. For example, in the present embodiment, the molded powdery body 2 and the pad 3 can be easily separated using a spring force. More specifically, a thin plate-like plate formed in a frame shape (hereinafter referred to as a stripper plate in the present embodiment, represented by reference numeral 24) is provided on the bottom surface of the pad base 15, and the stripper plate 24 is placed downward. An urging member 25 that urges to be pushed down is provided (see FIG. 5 and the like). The frame-shaped stripper plate 24 is formed so that the outer peripheral portion thereof is equal to the outer shape of the pad base 15 and the inner peripheral portion thereof has such a size and shape that the pad 3 can pass through (see FIG. 5, see FIG. Further, the biasing member 25 in this case may be, for example, a spring member interposed between the stripper plate 24 and the pad base 15 or may be deformed by providing a notch in a part of the stripper plate 24 and elastically. In any case, the member may be a member that applies an urging force, but in any case, it is desirable that the urging force be evenly arranged in the circumferential direction so as to apply a substantially uniform urging force to the stripper plate 24 so as not to tilt. Reference numeral 3 a in FIG. 6 is a fixing screw provided as necessary when the pad 3 is fixed to the pad base 15.

  Subsequently, an operation in the case of molding the powdery body 2 as a cosmetic using the compression molding apparatus described so far will be described (see FIGS. 1, 2, 8, etc.).

  First, the container 1 is supplied by the container supply unit described above (No. 1), and the container 1 is placed in the placement space 11 on the turntable 10 using a container feeder (see FIG. 2). Next, the turntable 10 is rotated clockwise by a predetermined amount (for example, 60 degrees in this embodiment), and a predetermined amount of the powdery body 2 is supplied onto the container 1 by the powdery body supply unit (No. 2). At this time, the rotary shutter 26 described above is rotated by a predetermined amount so that the powdery body 2 on the container 1 is scraped off and adjusted to a constant amount by removing the excess amount, and the surface is made flat.

  The step (No. 2) for supplying the powdery body 2 will be further described as follows. That is, when the turntable 10 rotates, the powder supply port 31 a of the hopper 31 is closed by the powder shut region 26 b of the rotary shutter 26. The turntable 10 is rotated by a predetermined amount, and the turntable 10 is stopped when the empty container 1 is located directly below the powder supply port 31a, and this time the rotary shutter 26 is rotated, for example, counterclockwise (FIG. 8). reference). When the powdery substance passage hole 26a is located directly under the powdery substance supply port 31a during the rotation operation of the rotary shutter 26, the opened powdery substance supply port 31a and the mounting space 11 are in communication with each other. A predetermined amount of the powder body 2 is supplied from the powder body supply port 31a to the container 1 through the powder body passage hole 26a. Thereafter, when the rotary shutter 26 is further rotated, the powdery body 2 just supplied is operated by the powdery body passage hole 26a, and the surface thereof is smoothed and smoothed. The rotary shutter 26 stops when the powdery substance supply port 31a of the hopper 31 is blocked by the powdery substance shut region 26. During the rotating operation of the rotary shutter 26 as described above, the portion that has passed through the cleaning unit 27 is automatically cleaned (see FIG. 8).

  Thereafter, when the turntable 10 is rotated 60 degrees, the container 1 to which the powdery body 2 is supplied moves to the position of No. 3. In this embodiment, No. 3 is an empty process and no work is performed (see FIG. 2). As the predetermined operation at the other position ends, when the turntable 10 is further rotated 60 degrees, the container 1 moves to the position No. 4 where compression molding is performed.

  Compression molding at the position of No. 4 is performed as follows (see FIG. 1). First, when the container 1 supplied with the powdery body 2 moves to the position of No. 4, it is in a state of being positioned on the press table 21 in the mounting space 11. Here, in this embodiment, press molding is performed with a cloth (cloth) 6 interposed between the pad 3 and the powdery body 2 (see FIG. 1). As the cloth 6 used in this case, for example, a material such as nylon (polyamide fiber) that has air permeability and maintains the surface of the powdery body 2 in a certain appearance is preferable. After the cloth 6 is interposed, the pad base 15 and the pad 3 are lowered by a predetermined amount, and the pad base 15 is put on the mounting space 11. Thereafter, the cylinder device 23 is operated to raise the mold retainer 22 and the press stand 21 to apply pressure. The press table 21 functions as a male mold that strokes in the female mold 32, and press-molds the powder body 2 between the pad base 15 and the pad 3. Further, during the pressure molding in this way, the suction device 5 is operated to keep sucking air.

  When pressure molding is performed in this way, the powdery body 2 accommodated in the container 1 has the upper surface of the pad 3 (however, in the present embodiment, the cloth 6 is interposed as described above). It becomes a pressed state and is compressed to generate air from the gap. At this time, since the suction device 5 is operating and the air holes 4 and the communication holes 16 are under negative pressure, the air generated by being pushed out from the powdery body 2 is not allowed to pass through the pad 3. The air is sucked as follows: air hole 4 → communication hole 16 → air passage 9 of the support pipe 8 → vacuum hose 17 → suction device 5 (see FIG. 1). As a result, according to this molding apparatus, in the pressure molding, a vacuum state (however, it is not a vacuum in a strict sense here, but a space having a pressure lower than the atmospheric pressure is formed. It is possible to form a vacuum state). For this reason, the powdery body (cosmetics) 2 can be pressure-molded while avoiding the formation of bubbles and air pockets.

  In addition, when performing pressure molding as mentioned above, it is preferable to perform the suction by the suction device 5 continuously from before the powdery body 2 is pressurized to after the molding. At the time of pressure molding, there is air that naturally escapes from the gap between the turntable 10 and the pad base 15 (or the gap between the turntable 10 and the stripper plate 24). Since the pressure is applied while actively sucking continuously, at least air existing in the vicinity of the surface of the pad 3 can be sucked through the vent hole 4 and the communication hole 16.

  When the compression molding is completed, the press table 21 and the mold retainer 22 are lowered to return to the position before molding, and the support pipe 8, the pad base 15 and the like are further raised to return to the position before molding. During this operation, the stripper plate 24 that receives the urging force of the urging member 25 and returns to the original position acts to push down the container 1. Although the powdery body 2 and the pad 3 may be in close contact with each other after compression molding, the powdery body 2 and the pad 3 can be automatically separated by the action of such a stripper plate 24. ing.

  In addition, it is also preferable to send air after compression molding, contrary to the time of air suction. For example, if the vacuum state is formed by sucking air at the time of compression molding as in the present embodiment, the powdery body 2 and the pad 3 after compression molding are in close contact with each other directly or via the cloth 6. However, if air is fed in reverse after molding, it is possible to apply a force that separates the powdery body 2 and the pad 3 by an action opposite to that at the time of molding. In the present embodiment, the air pump 7 described above is used as an air feeding device, and air is fed after compression molding. The air sent out from the air pump 7 in this way is sent in the order of the air pump 7 → the air hose 20 → the air passage 9 of the support pipe 8 → the communication hole 16 → the air hole 4 of the pad 3, and further the pad 3. And the product (powder-molded powder 2 and container 1) are brought into contact with each other so that the powder-like body 2 and the pad 3 are separated (or the product and the cloth 6 are separated).

  When the compression molding step (No. 4) is completed, the turntable 10 is further rotated 60 degrees to clean the upper surface of the powdery body 2 after the compression molding (No. 5). The product that has been cleaned is lowered from the turntable 10 by the discharge unit while being moved from the No. 5 position to the No. 6 position (see FIG. 1).

  As mentioned above, in the compression molding apparatus of the powdery body 2 demonstrated so far, the following advantages are acquired in the supply process (No. 2) of the powdery body 2. That is, first, since the powder grinder (more specifically, a shutter having a grind function) 28 is a rotary type constituted by the rotating body 26, a space for installing the cleaning unit 27 is ensured. Is possible or easy. That is, as described above, the rotary shutter 26 is provided so that a part thereof does not overlap the turntable 10 and the cleaning unit 27 can be disposed in the non-overlapping portion, so that the size is increased. It is possible to clean the surface of the shutter while suppressing this. Moreover, since the surface of the rotary shutter 26 can be continuously cleaned as the rotary shutter 26 rotates, it is effective. As a result, the surface of the rotary shutter 26 can be kept clean at all times, and color spots (unevenness) occur in the molded product (powdered product such as compression-molded cosmetics). It is possible to suppress the formation of irregularities on the surface of the product, and to reduce the rate at which defective products are produced.

  In addition, as described above, if the rotary shutter 26 is rotated, a part of the rotary shutter 26 is cleaned at the same time as the rotation. Therefore, it is troublesome to remove and reattach the shutter at the time of cleaning. There is no need to stop the machine. For this reason, it is possible to avoid wasting time and labor as in the prior art and to improve production efficiency. Furthermore, if there are three powder passing holes 26a as in the present embodiment, the degree of dirt in each powder passing hole 26a will be 1/3, so that only the frequency of dirt will pass. There is also an advantage that there is little adhesion.

  In addition, when the rotary shutter 26 as in the present embodiment is employed, the so-called state of the powdery body 2 in the container 1 is also stabilized. That is, by adopting the rotary shutter 26, the biasing direction of the powdery body 2 in the container 1 accompanying the rotation of the turntable 10 and the direction of grinding of the powdery body 2 using the rotary shutter 26 (also the same) (Circumferential direction) can be made coincident with each other, so that it is possible to cancel out the bias and suppress the variation of the state in which the powdery body 2 enters, thereby achieving stabilization.

  Further, according to the compression molding apparatus described above, a vacuum state (a state where the pressure is lower than the atmospheric pressure) is positively formed around the powder body 2 during the compression molding, and the air generated from the gap between the powder body 2 Can be actively sucked and removed. For this reason, it is possible to avoid the formation of bubbles or air pockets on the surface or inside of the powdery body 2 to be molded, and to reduce problems such as peeling of the product surface. As a result of the above, there is an advantage that the surface and density of the cosmetic material (powder) 2 after molding can be adjusted, and a high-quality product can be produced and provided with less quality unevenness than the conventional product. . As a result, the yield at the time of product molding is improved, the productivity is improved, and the production cost can be reduced.

  In addition, in this embodiment, the air pump 7 and the air hose 20 are provided as an air supply device, and when compression molding is completed, air is fed in reverse to the molding, so that the product (powder after compression molding) The body 2 and the container 1) and the pad 3 are easily separated separately. According to this, it is possible to further increase the productivity of products with higher quality than before. In addition, when such an air supply device is provided, even if a malfunction occurs in the stripper plate 24 and it does not function normally, the product and the pad 3 are separated and given an action. Can do.

  The above-described embodiment is an example of a preferred embodiment of the present invention, but is not limited thereto, and various modifications can be made without departing from the scope of the present invention. For example, in the present embodiment, the embodiment in the case of targeting “various cosmetics such as granules or powder” as an example of the powdery body 2 has been described, but this is only an example of a preferred embodiment of the present invention. Of course, it is possible to apply to various powders other than cosmetics.

  In the present embodiment, an example in which the powder grinder 28 for grinding the surface of the powder 3 and the shutter has been described has been described, but this is only a preferred example and is limited to such a form. It is not done. For example, the device for grinding and the shutter device may be separated and provided separately. Even in such a case, the structure of the powder grinding device 28 according to the present invention is applied. Of course it is possible.

  In the present embodiment, a circular shutter 26 is shown as an example of the shape of the rotary shutter 26, but this is also only a preferred example. Other shapes may be used as long as the function as the rotary shutter 26 can be exhibited.

  Further, the movement of the turntable 10 and the rotary shutter 26 is not limited to the above-described embodiment. That is, in the above-described embodiment, only one of the turntable 10 and the rotary shutter 26 is operated sequentially, and both are not rotated at the same time, but they can be operated simultaneously. For example, if the relative speed is increased by rotating the rotary shutter 26 while the turntable 10 is being rotated, the powdery body 2 can be worn more quickly, thereby making the surface more Smoothing processing can also be performed so as to be sharp. Alternatively, conversely, the turntable 10 and the rotary shutter 26 can be simultaneously rotated in the reverse direction. For example, when the turntable 10 is rotated clockwise and the rotary shutter 26 is rotated counterclockwise at the same time, the portion where the two come into contact is in the same direction (in this case, the left side in FIG. Direction). In such a case, the process of each process can be advanced similarly to having demonstrated in this embodiment, reducing the frictional resistance between the powdery body 2 and the surface of the rotary shutter 26. FIG.

  In addition, in the above-described embodiment, the powdery body 2 is supplied to the cosmetic container (for example, a dish-like object such as a resin dish or a metal dish) 1 so that the surplus portion is worn out. However, the container described here (see FIG. 1 and the like) is only a specific example of the object to which the present invention is applied, and the container in the present invention is not limited to the illustrated one. In terms of the technical content of the present invention, the container is not limited to such a dish-like object, and the main point is that it is a recess that is supplied so that the powdery body 2 has a predetermined shape. Even when the powdery body 2 is directly supplied to the recess formed in 10, the same as the container in the present embodiment, it can be a target of a grinding operation.

It is a figure which shows one Embodiment of the compression molding apparatus concerning this invention, and represents the structure of the principal part of the press unit which performs compression molding. It is the schematic which shows the turntable which moves a container and a powdery body with each process performed at each position of this turntable. It is a side view which shows the structural example of the support pipe which comprises a compression molding apparatus. It is a top view of the pad base holding a pad. FIG. 5 is a side view of the pad base shown in FIG. 4. FIG. 6 is a bottom view of the pad base and the like shown in FIG. 5. It is a top view of a pad. It is a top view which shows the rotary shutter as a scraping apparatus in this embodiment, and its periphery. It is a side view which shows the rotary shutter as a scraping apparatus in this embodiment, and its periphery. (A) is a figure which shows the rotary shutter in this embodiment, (B)-(D) is a figure which shows the other example of a shape of a rotary shutter. It is the schematic at the time of making the washing | cleaning unit into the direct acting type which strokes along the radial direction of a rotary shutter. It is the schematic when a washing | cleaning unit is made into a rotation type. It is a top view which shows an example of the conventional powdery body grinder.

Explanation of symbols

1 Container 2 Cosmetic (powder)
26 Rotating shutter (Rotating body)
26a Powder passing hole (powder passing part)
26b Shut area 27 Cleaning unit (cleaning device)
28 Powder material grinder 31a Powder material supply port (of hopper 31)

Claims (8)

  Before the powdery body supplied on the container is compression molded, the surface layer portion of the powdery body is ground and the surface thereof is smoothed, and the powder body grinding device for equalizing the filling amount in the container And a powdered body grinder characterized by comprising a rotating body.   The rotating body is provided such that an operation direction of a portion of the rotating body that is involved in an operation of rubbing the powdery body is parallel to a moving direction of the container. The powder grinder according to claim 1.   The powder grinder according to claim 1 or 2, further comprising a cleaning device that cleans a portion of the rotating body that is not involved in the operation of rubbing the powder.   4. The cleaning device according to claim 3, wherein the cleaning device is fixedly disposed at a predetermined position and automatically cleans the rotating body by utilizing the rotation of the rotating body. The powdery object grinder described.   The rotating body is constituted by a rotary shutter that opens and closes a powder body supply port for supplying the powder body to the container, and has both a function as a shutter and a function as a grinding device. The powder material grinder according to any one of claims 1 to 4, wherein the powder grinder is characterized in that:   The rotating body has a plate-like shape provided with a powdery body passage part for supplying the powdery body and a shut area that is an area other than the powdery substance passage part and closes the powdery substance supply port. The powder grinder according to claim 5, wherein the powder grinder is formed by a member.   The powdery body according to claim 6, wherein a plurality of the powdery body passage portions are provided, and the plurality of powdery body passage portions are evenly arranged around the rotation axis of the rotating body. Grinding device.   The powder body grinder according to any one of claims 1 to 7, wherein the rotating body is provided so as to be rotatable in both forward and reverse directions.

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