JP2013173551A - Surface treatment method for contents filled in container and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a surface treatment method for contents filled in a container and a surface treatment device, capable of reliably and substantially uniformly leveling a content surface of a viscous material in a container, resolving sealing failure or content adhesion to a lid body to obtain good beauty with reduced uneven shape of the content surface after opening, and substantially equalizing the amount of contents without requiring a content removal device such as a duct.SOLUTION: A rotary roller 10 is arranged so that a portion of a circumferential surface thereof comes into contact with a content surface 6a in a container 5, and the rotor is rotated so as to perform the biting in a slide direction while sliding the rotor along the content surface 6a to level the content surface 6a.

Description

  The present invention relates to a content surface treatment method and an apparatus for leveling a content surface such as a viscous material filled in a container.

  Contents containing viscous / viscous substances such as cream, butter, baby food, miso, and processed meat products and granular or flaky solids (hereinafter referred to as viscous substances in the present specification). When the container is filled, it is common that a horn or an uneven shape in which the content partially protrudes from the content surface. These cause a sealing failure by biting into the sealing surface of the lid when the container is sealed by the lid. In addition, they may adhere to the back surface of the lid and cause dirt on the lid, or the rugged shape may remain on the surface of the contents, which may impair the aesthetics when opened.

  In order to solve the above-mentioned problems, it has been conventionally performed to vibrate the container after filling or to level the surface by pressing the contents with a pressing body. However, particularly in the case of a highly viscous material, it is difficult to obtain a stable shape by simply vibrating it, and the content may adhere to the pressing body by simply pushing from above, so the cleaning frequency of the pressing body is low. There is a risk that productivity increases and productivity decreases. That is, there has not yet been proposed a method for satisfactorily solving the above-described problems in the sealed filling line.

  On the other hand, various methods for scraping the surface of the contents into a spherical concave surface with a rotating roller after the contents are overfilled so as to rise from the container mouth have been proposed (see Patent Documents 1 to 3). For example, in Patent Document 1, by providing a soft roll having a rotating peripheral surface at a position slightly lower than the height of a container filled with a high-viscosity viscous material, and moving the container relative to the soft roll, The surface of the contents is scraped to a concave shape with the soft roll surface. Further, in Patent Document 2, a container filled with the contents is placed on a cushion table, and the container opening edge is pressed against the working surface by a drum-shaped chamfering rotation roller, thereby making the contents surface hemispherical. The pasty fluid that has been scraped off is sucked and collected at the negative pressure port. Further, in Patent Document 3, the surface of the contents is first scraped so as to form a spherical recess with a spherical rotating roller, and then the contents adhering to the opening end of the container at that time are wiped with a cylindrical rotating roller on the downstream side. I try to remove it.

  In all of the above-mentioned Patent Documents 1 to 3, the rotating roller or a part of the peripheral surface of the spherical rotating roller is allowed to act on the surface of the overfilled contents on the surface of the rotating roller or the like. The contents are adhered, the excess contents and a part of the contents are scraped in one direction and removed from the container and collected to form a spherical concave surface on the contents surface. That is, if the contents surface filled using the methods shown in Patent Documents 1 to 3 is leveled, the contents surface is roughly averaged, but the horns and irregularities formed on the contents surface are scraped off. There is a risk that it will be removed outside the container and its internal volume will be non-uniform. In addition, since a content removing device such as a duct for removing the content attached to the peripheral surface of the rotating roller or the like is separately required, the device becomes complicated and there is a concern about a decrease in productivity due to cleaning work. .

Japanese Utility Model Publication No. 47-35403 Japanese Patent Publication No.57-60205 Japanese Examined Patent Publication No. 1-1722

  Therefore, the present invention can surely level the contents of the viscous material in the container substantially uniformly, eliminate the sealing failure and the content adhesion to the lid, and the content surface after opening. The surface treatment method and surface treatment of contents filled in a container that can obtain a good aesthetics by reducing the uneven shape of the container, and do not require a content removal device such as a duct, and can have a substantially uniform internal volume An object is to provide an apparatus.

  In the surface treatment method for a content filled in a container according to the present invention according to claim 1 for solving the above-described problem, the surface of the content in the container is arranged so that a part of the peripheral surface of the rotating body comes into contact therewith. The rotating body is slid along the surface of the contents, and is rotated so as to be bitten in the sliding direction to level the contents surface.

The invention according to claim 2 is the surface treatment method for contents according to claim 1, characterized in that the rotating body is reciprocated along the contents surface.
According to a third aspect of the present invention, in the content surface treating method according to the first or second aspect, the rotational peripheral speed of the rotating body is made faster than the sliding speed.
According to a fourth aspect of the present invention, in the surface treatment method for contents according to the second or third aspect, the rotating body reaches at least a part of one end portion, the other end portion, or the vicinity thereof in the container. Then, after the slide is stopped, the rotating body is temporarily rotated in the same direction.

  A surface treatment apparatus for a content filled in a container of the invention according to claim 5 that solves the above-mentioned problem is a rotating body that contacts the surface of the content and smoothes the surface of the content, and a part of the peripheral surface of the rotating body A position adjusting means for bringing the rotating body into contact with the contents surface in the container, a sliding means for sliding the rotating body along the contents surface, and a rotation driving means for rotating the rotating body so as to bite in the sliding direction. It is characterized by this.

The invention according to claim 6 is the surface treatment apparatus for contents according to claim 5, wherein the rotating body is a rotating roller having an axial length that can be disposed in an opening in a container, and the sliding means is A cylinder device in which a rotating roller unit that rotatably supports the rotating roller is fixed to a cylinder rod, the position adjusting unit is a vertical movement mechanism that moves a container, and the rotation driving unit is rotated by the rotating roller. It is characterized by comprising a combination of a pinion gear fixed so as to be concentric with the shaft, and a rack gear.
Further, the invention according to claim 7 is the surface treatment apparatus according to claim 6, wherein the rack gear is displaced along the slide means so that at least one of the one end, the other end, or the vicinity thereof in the container. It is characterized in that it has end surface processing rack gear displacement means for performing end surface processing by partially rotating the rotating roller.
The invention according to claim 8 is the surface treatment apparatus for contents according to claim 5, wherein the rotation driving means is a servo motor.

  According to the first aspect of the present invention, the rotating body arranged so as to come into contact with the contents surface in the container is slid along the contents surface and is rotated so as to be bitten in the sliding direction. By passing the rotating body through the surface, the contents are pushed inward and the surface is leveled, and at the same time, adhesion to the rotating body is prevented, and the contents surface is improved while making the inner volume substantially uniform. Can be leveled. Therefore, it is possible to prevent the occurrence of poor sealing due to the contents adhering to the opening end of the container, and to prevent the contents from adhering to the lid, thereby reducing the unevenness of the contents surface after opening and obtaining a good aesthetics. it can. Further, since it is prevented from adhering to the rotating body, it is not necessary to separately provide a content removing device, and the frequency of cleaning work is reduced, so that productivity can be improved.

According to the invention of claim 2, the surface of the contents can be leveled more uniformly by reciprocating the rotating body.
According to the invention of claim 3, by making the rotational peripheral speed of the rotating body faster than the sliding speed, the contents that may adhere to the peripheral surface of the rotating body are adhered to the surface side of the contents in the container. Accordingly, it is possible to more effectively prevent the contents from adhering to the circumferential surface of the rotating roller.
Further, according to the invention of claim 4, in addition to the above effect, before the rotating body reaches at least a part of one end or the other end or the vicinity thereof in the container and returns to the opposite side and reversely rotates, In order to temporarily idle toward the inside of the container at the position reached by the rotating roller, the contents that may adhere to the peripheral surface of the rotating roller on the container end side can be attached to the contents part side by shearing force, It is possible to effectively prevent the contents located on the end side of the container from adhering to the circumferential surface of the rotating roller.

  According to invention of Claim 5, the apparatus which can implement the surface treatment method of Claim 1 reliably can be obtained, and it can install in a viscous substance filling sealing line easily.

According to the invention of claim 6, the apparatus capable of performing the surface treatment method according to claims 2 and 3 can be configured in a compact and inexpensive manner by simple means, and maintenance is easy.
According to invention of Claim 7, the surface treatment method which concerns on Claim 4 can be reliably implemented with a simple apparatus.
According to the invention of claim 8, by constituting the rotational drive means with a servo motor, the rack gear and the pinion gear in the invention of claim 6 can be omitted, the construction becomes simpler, and claims 3, 4 Various rotation control of the rotating body related to the surface treatment method can be easily performed.

It is the schematic of embodiment of the surface treatment apparatus of the content with which the container concerning this invention was filled. It is process drawing which implements the surface treatment method of the content with which the container was filled with the surface treatment apparatus of the content shown in FIG. It is process drawing following the process of FIG. 2 which implements the surface treatment method of the content with which the container was filled. It is process drawing following the process of FIG. 3 which implements the surface treatment method of the content with which the container was filled. It is process drawing following the process of FIG. 4 which implements the surface treatment method of the content with which the container was filled. It is process drawing following the process of FIG. 5 which implements the surface treatment method of the content with which the container was filled. It is process drawing which implements the surface treatment method of the content with which the container which concerns on other embodiment was filled with the surface treatment apparatus of the content which concerns on other embodiment of this invention. It is process drawing following the process of FIG. 7 which implements the surface treatment method of the content with which the container was filled. It is process drawing following the process of FIG. 8 which implements the surface treatment method of the content with which the container was filled. It is process drawing following the process of FIG. 9 which implements the surface treatment method of the content with which the container was filled. It is process drawing following the process of FIG. 10 which implements the surface treatment method of the content with which the container was filled. It is process drawing following the process of FIG. 11 which implements the surface treatment method of the content with which the container was filled. It is process drawing following the process of FIG. 12 which implements the surface treatment method of the content with which the container was filled.

Hereinafter, embodiments of a surface treatment method and apparatus for contents filled in a container according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic view of a content surface treatment apparatus 1 according to the present embodiment. For example, a content surface treatment station is provided in a production line for filling and sealing a content 6 such as a viscous material in a container 5. The container 5 filled with the article 6 is sent to the station, and the surface treatment of the contents 6 is performed while the positioning is stopped at a predetermined position. The type and shape of the container 5 is not particularly limited, such as a cup, a tray-shaped plastic container, a metal can, or the like.
The content surface treatment apparatus 1 according to the present embodiment includes a rotating roller 10 as a rotating body that contacts the surface of the content 6 filled in a container 5 and smoothes the content surface 6 a, and the periphery of the rotating roller 10. The vertical movement mechanism 20 as a position adjusting means for arranging the container 5 so that a part of the surface is in contact with the content surface 6a in the container 5, the rotating body in the horizontal direction along the content surface 6a A cylinder device 30 as a sliding means for reciprocating movement, and a rack and pinion mechanism including a pinion gear 14 and a rack gear 16 as a rotation driving means for rotating the rotating body so as to bite in the sliding direction.

Although not shown, the rotating roller 10 is a stainless steel roller whose peripheral surface is formed in a drum shape with both ends tapered in the axial direction, and is formed in a size that can enter the opening of the container 5. Depending on the dimensions, materials, shapes and dimensions can be used as appropriate. For example, when the container opening is a rectangular container having a substantially rectangular shape, the axial length of the rotating roller is slightly shorter than the container opening length perpendicular to the sliding direction of the rotating roller, and the diameter of the rotating roller rotates. When the roller is positioned at the container opening end, the rotation roller shown in the triangular space (FIG. 9B) formed between the peripheral surface of the rotation roller and the contents surface when the container opening end edge contacts. The space surrounded by the circular arc surface a, the container side wall b, and the tangent line c at the lowest point of the rotating roller) is desirable in order to increase the leveling area, but if the diameter of the rotating roller is too small, the leveling described later will be performed. Since the effect is reduced, the diameter of the rotating roller is preferably in the range of 4/5 to 1/5 of the opening length L in the traveling direction of the rotating roller of the container. When the container opening is a substantially circular container, the length in the rotation roller axial direction is preferably shorter than √2R of the container opening radius R, and the diameter is preferably in the range of 8 / 5R to 2 / 5R. .
In addition, if the axial length of the rotating roller is too small relative to the container opening area, the contents surface will be evenly leaked, but the contents are almost filled from the center of the container opening, and there are horns and irregularities in the center. Since it is easy to occur, the vicinity including the central portion is required to be leveled, and the object can be achieved without necessarily leveling the entire surface of the container opening. Therefore, the size of the rotating roller can be within the above range.
Further, the diameter and gear ratio of the rotating roller are selected so that the rotating peripheral speed of the rotating roller is equal to the slide speed, and preferably about 1.2 to 3.0 times as will be described later. Is desirable.

The rotary roller unit 15 includes a rotary roller 10, a rotary shaft 11, a mounting jig 12, and a pinion gear 14 at a predetermined position of the content surface treatment station. The rotating roller 10 is mounted on the rotating shaft 11 and is supported by a mounting jig 12 that is fixed to the tip of the cylinder rod 31 of the cylinder device 30. Further, a pinion gear 14 is fixed to the rotating roller 10 so as to be concentric with the rotating shaft 11.
On the other hand, a rack gear 16 that constitutes a rotation driving means together with the pinion gear 14 is arranged in a state of being engaged with the pinion gear 14.
With the configuration described above, when the rotating roller unit 15 slides left and right in FIG. 1 by driving the cylinder device 30, the pinion gear 14 is rotated by meshing with a rack gear 16 described later, and the rotating roller 10 is integrated with the pinion gear 14. To rotate.

  Arbitrary means can be adopted as the vertical movement mechanism 20 of the container 5. As shown by the phantom line in FIG. 1, the table 22 is mounted on the cylinder rod 21 on the table 22 on which the container 5 is placed, and the table 22 is moved up and down by a cylinder (not shown). It has a configuration. When the container 5 is raised so that the rotation roller unit 15 is positioned substantially at the center of the container 5, a part of the peripheral surface of the rotation roller 10 enters the container 5 as shown in FIG. Thus, the stroke amount of a cylinder (not shown) for determining the height position of the table 22 is adjusted so that the content surface 6a is pushed in by a predetermined depth. In FIG. 2 and subsequent figures, the vertical movement mechanism 20 is not shown.

A surface treatment method according to this embodiment in which surface treatment is performed by the surface treatment apparatus 1 configured as described above will be described with reference to FIGS.
First, in a state where the container 5 filled with the contents 6 has reached the contents surface treatment station and stopped in positioning, the table 22 on which the containers 5 are placed is raised by the vertical movement mechanism 20, and the peripheral surface of the rotating roller 10. A part stops in a state where the content surface 6a is pushed by a predetermined depth at the center of the opening of the container 5 (FIGS. 2 and 3). Here, the push-in depth of the contents is determined by the rotation roller diameter, the meshing ratio between the rack gear and the pinion gear, and the stroke amount of a cylinder (not shown) that moves the table 22 up and down according to the shape and dimensions of the contents and the container. It can adjust suitably by adjusting etc.

  Then, when the cylinder device 30 operates from the state of FIG. 3 and the cylinder rod 31 extends in the left direction in the figure, the sliding speed of the rotating roller unit 15 is rotated while the rotating roller 10 rotates counterclockwise by the rack and pinion mechanism in the drawing. A part of the peripheral surface of the rotating roller 10 rotating at a constant speed advances in the left direction in the figure while biting the contents surface 6a, leveling one side of the contents surface of the container 5 (FIG. 4). In this way, the leading edge of the rotating roller 10 in contact with the moving direction contacts the contents surface 6a and advances while pushing the contents 6 in the direction opposite to the moving direction (biting the contents 6). The content surface 6a is leveled while the content 6 is prevented from adhering to the peripheral surface of the ten.

In the above embodiment, the rotational peripheral speed of the rotary roller 10 is made equal to the slide speed of the rotary roller unit 15, but the rotational peripheral speed of the rotary roller 10 is about 1.2 to 3 from the slide speed of the rotary roller unit 15. It is desirable to be about 0 times faster. By doing so, the content 6 that may adhere to the peripheral surface of the rotating roller 10 can be reliably attached to the content surface 6 a side in the container 5, and thereby to the peripheral surface of the rotating roller 10. Can be more effectively prevented.
Here, if the rotational peripheral speed of the rotating roller is equal to or less than the sliding speed of the rotating roller unit, the contents may adhere to the peripheral surface of the rotating roller in the case of a highly viscous material. If the content is more than twice as fast, if the content contains a lot of solids, the feeding effect is too high and the leveling effect may be hindered, or the content may be scattered by the rotation of the rotating roller. There is.

Subsequently, when the rotating roller 10 reaches one end 7a of the container 5 in the sliding direction or in the vicinity thereof, the feeding of the cylinder device 30 is stopped, and then the cylinder rod 31 is moved rightward in the drawing from the state shown in FIG. By contracting (FIG. 4), the rotating roller 10 moves until it reaches the other end 7b of the container 5 or the vicinity thereof while rotating in the reverse direction to the forward process, and the opposite content surface is leveled in the same manner. (FIG. 5). Then, when the cylinder rod 31 extends again in the left direction in the figure from the state of FIG. 5, the rotating roller 10 is returned while rotating from the other end 7b or the vicinity thereof until reaching the center position of the container 5 and the contents. The leveling process of the surface 6a is finished (FIG. 6), and the table 22 on which the container 5 is placed is lowered by the vertical movement mechanism 20, thereby returning to the initial position shown in FIG.
Therefore, in this embodiment, the content surface 6a is leveled twice by at least one slide of the rotating roller 10 reciprocating from the center of the opening of the container 5, but if necessary, the operation is repeated a plurality of times. It is possible to evenly level the surface.
Here, the leveling start position and end position are not necessarily limited to the center of the opening of the container 5 but can be any position. For example, the rotating roller unit 15 is lowered to the other end 7b of the container 5 or the vicinity thereof, and then the cylinder rod 31 is extended leftward in the figure to advance the rotating roller 10 leftward in the figure. It is also possible to lower the table 22 on which the container 5 is placed after the content surface 6a is leveled once to the portion 7a or its vicinity. However, in a normal case, filling is performed on the center of the opening of the container 5 in order to stabilize the filling state of the contents, so that a horn or an uneven shape in which the contents surface partially protrudes at the center of the opening. There is a trend. Therefore, the leveling start position and end position are preferably at the center of the opening.

7 to 13 show a surface treatment apparatus 1A for contents according to another embodiment of the present invention. In the present embodiment, the same components as those in the above embodiment are denoted by the same reference numerals, and only differences will be described.
In the embodiment (FIGS. 1 to 6), the peripheral surface of the rotating roller 10 reaches the one end 7a of the container 5 in the sliding direction from the center of the opening of the container 5 or the vicinity thereof, and stops. The rotating roller 10 rotates in the reverse direction and proceeds to the return process. In this case, as shown in FIG. 9B in an enlarged manner, the peripheral surface of the rotating roller 10 on the left side from the rotational axis position of the rotating roller 10 is shown. The content portion 6b in contact with the rotary roller 10 is positioned on the rear side in the traveling direction of the rotating roller 10, so that the content portion 6b adheres to the peripheral surface of the rotating roller surface 10 and is scraped or rotated. There is a possibility that the container 10 may be scattered outward or outward due to the rotation of the return process of the roller 10. In this embodiment, in order to prevent this, the following measures are taken.

That is, in the present embodiment, the rack gear 16 is connected to the tip of the cylinder rod 41 of the end processing cylinder device 40 so that the rack gear 16 can slide along the reciprocating direction of the rotary roller unit 15. This is different from the embodiment.
The surface treatment apparatus 1A for content according to the present embodiment performs the same processing as that of the above-described embodiment until the steps shown in FIGS. 7 to 9, but the peripheral surface of the rotating roller 10 slides as shown in FIG. When the feed of the cylinder device 30 stops when the one end portion 7a of the container 5 in the traveling direction or the vicinity thereof is stopped and the feed of the rotating roller 10 stops, the rack gear 16 is moved along the cylinder device 30 which is a slide means. An end processing cylinder device 40 is provided as rack gear displacing means for performing end processing by rotating the rotating roller 10 slightly in the same direction at one end 7a or in the vicinity thereof.

  That is, by operating the end portion processing cylinder device 40 and slightly moving the rack gear 16 to the right side in the drawing at one end portion 7a or in the vicinity thereof, as shown in FIG. Due to the meshing with the gear 14, the rotary roller 10 rotates counterclockwise at that position. As a result, the content portion 6b that may adhere to the peripheral surface of the rotating roller 10 on the left side in the drawing from the rotational axis position of the rotating roller 10 is removed from the contents in the container 5 by the shearing force with the peripheral surface of the rotating roller 10. Can be attached to the object side. This prevents the contents from adhering to the peripheral surface of the rotating roller 10 and prevents the contents 6 from protruding to the opening edge of the container 5 (FIG. 9). Accordingly, the movement stroke of the rack gear 16 by the end processing cylinder device 40 can be appropriately selected so that the effect of preventing the contents 6 from being adhered is obtained at a short distance, but the effect is maximized according to the contents 6. be able to.

Thereafter, the driving of the end processing cylinder device 40 is stopped, and then the cylinder device 30 is operated in the return direction. As a result, the rotating roller 10 rotates clockwise, leveling the contents surface 6a to the right side in the figure. Move (FIGS. 10 and 11). When the rotating roller 10 reaches the other end 7b or the vicinity thereof, the cylinder device 30 is stopped at the same time as when the one end 7a of the container 5 in the sliding direction or the vicinity thereof is reached. The part processing cylinder device 40 is operated, and the rack gear 16 is slightly moved to the left side in the drawing at the other end 7b or the vicinity thereof to rotate the rotating roller 10 slightly in the clockwise direction. The content portion 6c that may adhere to the surface is attached to the content side in the container 5 (FIG. 11). Thereafter, the driving of the end processing cylinder device 40 is stopped and the cylinder device 30 is operated (FIG. 12), and the rotating roller 10 moves counterclockwise while moving counterclockwise, and approximately in the center of the container 5. The contents surface 6a is leveled until it is positioned at the part (FIG. 13). Next, when the vertical movement mechanism 20 is operated, the table 22 on which the container 5 is placed descends and returns to the initial position.
By the above operation, the rotating roller 10 leveles the contents 6 by reciprocating at least once on the contents surface 6a. The operation is different from the conventional case of scraping and leveling off the surplus contents, and the contents 6 are pushed into the container 5 by the rotating roller 10 so as to level the contents. The contents can be well leveled, and the contents 6 are not scattered to the outside or the contents 6 do not adhere to the opening edge of the container 5, so that there is almost no possibility of causing a sealing failure or the like.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various design changes can be made within the scope of the technical idea.
For example, although the rack and pinion mechanism is employed as the rotation driving means of the rotating body in the above embodiment, the rotation roller 10 may be driven to rotate by a servo motor instead of the rack and pinion mechanism. In that case, the rotating roller unit 15 may be configured by fixing the servo motor and the rotating roller 10 to the mounting jig 12.
With this configuration, the rotating roller 10 is directly rotated by a servo motor, so that the rack gear 16 and the pinion gear 14 are not required, the surface treatment apparatus becomes compact, and the rotating direction and rotating speed of the rotating roller 10 are increased. Since it can be controlled more finely and arbitrarily, a more appropriate leveling operation according to the contents 6 can be performed. In another embodiment, the rotating roller 10 slides while rotating with respect to the container 5 to reach one end or the vicinity in the container 5, stops the sliding, and the rotating roller 10 with the sliding stopped. Are temporarily rotated in the same direction, it becomes possible to control the rotation direction and rotation speed of the rotating roller 10 more finely and arbitrarily by the servo motor, and the viscous material located on the end side is formed on the peripheral surface of the rotating roller 10. Adhesion can be effectively prevented.

Note that the above-described vertical movement mechanism 20 as a position adjusting means for moving the container 5 up and down may be attached to the cylinder device 30 to move the rotary roller unit 15 side up and down. In this case, the pinion gear 14 and the rack gear 16 are engaged with each other, and the rack gear 16 and the cylinder device 30 are connected so as to be relatively movable in the horizontal direction and integrally movable in the vertical direction using a connecting member or the like (not shown). The rotary roller unit 15, the rack gear 16, and the cylinder device 30 are raised or lowered together by the vertical movement mechanism. Alternatively, the rack gear 16 may be fixed at a predetermined position, and the rotating roller unit 15 and the cylinder device 30 may be raised or lowered together.
Further, a plurality of vertical movement mechanisms can be used together to raise the container 5 and lower the rotating roller unit 15, the rack gear 16, and the cylinder device 30 to bring the rotating roller 10 and the content surface 6a into contact with each other. It is.
Moreover, in this embodiment, although the rotation roller unit 15 to which the rotation roller 10 is attached is slid by the cylinder device 30, the container 5 may be slid. In this case, it is preferable to attach the cylinder device serving as the sliding means to the vertical movement mechanism 20 as the position adjusting means for moving the container 5 up and down and slide the container 5. It is also possible to use a plurality of slide means together and slide the rotating roller unit 15 and the container 5 at the same time.
Further, in the above-described embodiment, it is desirable to make the circumferential speed of the rotating roller 10 faster than the sliding speed of the rotating roller because the leveling effect is improved, but it may be the same as the sliding speed.
Furthermore, in the above embodiment, the rotating roller 10 is used as the rotating body. The rotating surface 10 is formed in a drum shape whose outer circumferential surface is tapered at both ends in the axial direction. It is also possible to adopt a rotating body.

  The content surface treatment method and the surface treatment apparatus of the present invention are viscous or viscous, such as cream, butter, baby food, miso, processed meat products, granular or flake form, particularly in wide-mouth containers such as plastic containers and metal cans. It is suitable for surface leveling when the contents surface is filled with contents that are likely to cause unevenness and horns, and can be easily applied to a filling and sealing line for these contents.

DESCRIPTION OF SYMBOLS 1, 1A Contents surface treatment apparatus 5 Container 6 Contents 7a One end 7b The other end 10 Rotating roller 11 Rotating shaft 12 Mounting jig 14 Pinion gear 15 Rotating roller unit 16 Rack gear 20 Vertical movement mechanism 21, 31, 41 Cylinder Rod 30 Cylinder device 40 End processing cylinder device

Claims (8)

  After placing the rotating body so that a part of the peripheral surface of the rotating body contacts the surface of the contents in the container, the rotating body is rotated so as to be bitten in the sliding direction while sliding along the surface of the contents. A surface treatment method for a content filled in a container, characterized by leveling the surface of the content.   The surface treatment method for contents according to claim 1, wherein the rotating body is reciprocated along the contents surface.   The surface treatment method for contents according to claim 1 or 2, wherein a rotational peripheral speed of the rotating body is made faster than a slide speed.   The rotating body is temporarily rotated in the same direction after stopping the slide when the rotating body reaches at least a part of one end or the other end of the container or the vicinity thereof. 4. A surface treatment method for a content according to item 3.   A rotating body that contacts the contents surface and leveles the contents surface, a position adjusting means for bringing a part of the peripheral surface of the rotating body into contact with the contents surface in the container, and the rotating body along the contents surface A surface treatment apparatus for a content filled in a container, comprising: a sliding means for sliding and a rotation driving means for rotating the rotating body so as to bite in the sliding direction.   A cylinder device in which the rotating body is a rotating roller having an axial length that can be disposed at an opening in a container, and a rotating roller unit in which the sliding means rotatably supports the rotating roller is fixed to a cylinder rod. The position adjusting means is a vertical movement mechanism for moving the container, and the rotation driving means is composed of a combination of a pinion gear fixed to the rotation roller so as to be concentric with a rotation shaft, and a rack gear. The surface treatment apparatus for contents according to claim 5.   End surface processing rack gear displacement means for performing end surface processing by displacing the rack gear along the slide means and causing the rotating roller to idle at at least a part of one end, the other end or the vicinity thereof in the container. The surface treatment apparatus according to claim 6, comprising:   The surface treatment apparatus according to claim 5, wherein the rotation driving unit is a servo motor.

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