JPH0717050B2 - Container lid printing device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container lid printing apparatus, and more particularly to a container lid printing apparatus for performing required printing on the inner surface and / or outer surface of the top wall of the container lid.

[0002]

2. Description of the Related Art As a container lid for a container such as a food and drink bottle, as is well known to those skilled in the art, a container lid having a top wall and a cylindrical skirt wall hanging from the peripheral edge of the top wall is known. Proposed and put to practical use. In such a container lid, it is desirable to perform printing including a display showing the contents or a display showing the manufacturer and seller on the outer surface of the top wall. Further, it is often desired to print a prize display on the inner surface of the top wall.

When the container lid is made of a metal material such as an aluminum-based alloy, printing is performed on one or both sides of a sheet-shaped metal material, and then the printed metal material is machined by pressing or the like. Processing can thus be carried out to produce a container lid with the required printing on the outer and / or inner surface of the top wall. However, recently, a synthetic resin container lid made of an appropriate synthetic resin material such as polypropylene has been proposed in place of the metal container lid. Such a synthetic resin container lid is molded by compression molding or injection molding. Therefore, in the case of a synthetic resin container lid, it is necessary to perform required printing on the outer surface and / or the inner surface of the top wall after molding.

As a printing device for printing on the outer surface of the top wall of the container lid, for example, the tampo printing device disclosed in Japanese Patent Publication No. 56-19833 can be used.
When using this tampo printing device, the pattern to be printed is transferred from the plate to the surface of the substantially hemispherical tampo made of a flexible material, and then the dandelion holding the above pattern is positioned above the container lid. After that, by pressing the tampo against the outer surface of the top wall of the container lid, the required printing is applied to the outer surface of the top wall of the container lid.

However, when using the above-mentioned tampo printing apparatus, (a) the container lid to be printed must be moved intermittently (that is, when the tampo is pressed against the outer surface of the top wall of the container lid). The lid must be held stationary, and therefore the movement of the container lid must be intermittently moved), and printing cannot be performed at high speed.
(B) It is desirable to print on the inner surface of the top wall of a prize container lid, etc., but it is quite difficult to print on the inner surface of the top wall, and it is possible to print. However, there is a problem that it is significantly limited.

On the other hand, Japanese Unexamined Patent Publication No. 51-134210 discloses a printing apparatus which can be applied to print on the outer surface of the top wall of a container lid already mounted on the neck of a container such as a bottle. Has been done. In such a printing apparatus, the container lid can be continuously moved, and therefore the above-mentioned problems in the case of using the tampo printing apparatus can be solved. However, such a printing apparatus can be applied only to the container lid already attached to the mouth and neck of the container, and cannot be applied to a single container lid not attached to the mouth and neck of the container.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above facts, and its main technical problem is to perform sufficiently satisfactory printing at high speed on the outer surface and / or inner surface of the top wall of a container lid. An object of the present invention is to provide a container lid printing device that can be used.

Another technical problem to be solved by the present invention is to provide a container lid printing apparatus capable of performing printing with high positional accuracy at high speed on the outer surface and / or inner surface of the top wall of the container lid.

Still another technical problem to be solved by the present invention is to provide a container lid printing apparatus capable of simultaneously printing on the outer surface and the inner surface of the top wall of the container lid at high speed.

[0010]

According to the present invention, there is provided an endless wrapping member for continuously transporting a container lid having a ceiling wall and a cylindrical skirt wall hanging down from a peripheral edge of the ceiling wall through a printing area. A container lid transporting means including a conveyor means, a rotary support and a plurality of cylindrical projections provided on the rotary support at intervals in the circumferential direction and projecting in the radial direction. The pattern is held on the tip end surface of the tubular projection, and the pattern is continuously conveyed through the print area in synchronization with the conveyance of the container lid by the rotation of the rotary support. A pattern transfer means for inserting the tip end surface into the container lid, and the tip end surface of the cylindrical projection and the inner surface of the top wall of the container lid in the printing area to be pressed with a required pressure, and thus the pattern Mark corresponding to Pressing means for applying an inner surface of the top wall of the container lid, and the traveling direction of the endless winding member disposed around the endless winding member of the conveyor means in the container lid conveying means. And an endless winding belt that is driven in the same direction as the traveling speed of the endless winding member at a speed lower than the traveling speed of the endless winding member. An engaging piece that is supplied to the traveling portion and that engages with the container lid on the upper traveling portion of the endless winding belt to move the container lid in the traveling direction is provided on the endless winding member. There is provided a container lid printing device, characterized in that a plurality of container lid printing devices are arranged at intervals.

According to the present invention, the rotary support and a plurality of cylindrical projections provided on the rotary support at intervals in the circumferential direction and projecting in the radial direction are provided, and the ceiling wall and the ceiling wall are provided. A container lid having a cylindrical skirt wall hanging down from the peripheral edge of the face wall is fitted in the cylindrical projection by means of container lid fitting means in the supply area, and the container lid is continuously moved through the printing area by rotation of the rotary support. A container lid transporting means for transporting the pattern onto the surface of the container, a pattern transporting means for continuously transporting the pattern to be printed held on the surface through the print area in synchronization with the transport of the container lid, The surface of the pattern transfer means and the outer surface of the top wall of the container lid fitted to the cylindrical projection of the container cover transfer means are pressed with a required pressure, thus printing the pattern corresponding to the container. Of the lid Pressing means for applying to the outer surface of the top wall, the pressing means being provided with a contact member movably mounted around each of the cylindrical projections in a radial direction over a predetermined range, and a corresponding contact member. The container lid is elastically biased outwardly in the radial direction, and the bottom of the skirt wall of the container lid fitted on the tubular projection is brought into contact with the corresponding contact member. The inner surface of the ceiling wall is separated from the tip end surface of the tubular projection, and the second pattern to be printed is held on each tip end surface of the tubular projection. The projecting body constitutes the container lid transporting means and the second pattern transporting means, and the pattern transporting means also acts as the second pressing means, so that the top wall of the container lid in the printing area is covered. When the outer surface is pressed against the surface of the pattern transfer means, The inner surface of the top wall of the container lid is pressed against the tip end surface of the tubular projection, and printing corresponding to the second pattern is performed on the inner surface of the top wall of the container lid. A container lid printing device is provided.

Further, according to the present invention, the rotary support and a plurality of cylinders provided in the rotary support and spaced in the circumferential direction and projecting in the radial direction and forming the pattern transfer means together with the container lid transfer means. A cylindrical protrusion, and holds a pattern to be printed on the tip surface of the cylindrical protrusion,
A container lid having a top wall and a cylindrical skirt wall hanging down from the peripheral edge of the top wall is fitted on the cylindrical projection by means of container lid fitting means in the supply area, and the container lid is rotated by rotation of the rotary support. The inner surface of the top wall of the container lid is pressed by the required pressure to the tip surface of the cylindrical projection by the action of the pressing means in the printing area, and thus the pattern is formed. There is provided a container lid printing device, characterized in that printing corresponding to is applied to the inner surface of the top wall of the container lid body.

[0013]

In the container lid printing apparatus of the present invention, when the container lid and the pattern to be printed are continuously moved through the printing area, printing is performed on the outer surface and / or the inner surface of the top wall of the container lid. The desired pattern is pressed and printing is performed as required. Since both the container lid and the printing pattern are continuously moved, the required printing can be performed at a sufficiently high speed. When the container lid conveying means is constituted by a conveyor means having an endless winding member, the engagement piece arranged on the endless winding member is arranged around the endless winding member. By engaging and moving the container lid on the upper running portion of the endless winding belt, the container lid is positioned with sufficient precision with respect to the pattern to be printed. Hold the pattern to be printed on the tip of the cylindrical protrusion,
By pressing the tip end surface of the cylindrical protrusion against the inner surface of the top wall of the container lid, it is possible to perform the required printing on the inner surface of the top wall of the container lid. When the tip end surface of the cylindrical protrusion holding the pattern to be printed is pressed against the inner surface of the top wall of the container lid, by pressing another pattern to be printed against the outer surface of the top surface wall of the container lid, It is also possible to perform the required printing on the outer surface and the inner surface of the top wall at the same time.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a container lid printing apparatus constructed according to the present invention will be described with reference to FIGS. The apparatus of this first embodiment is applied to print on the inner surface of the top wall of the container lid.

In FIG. 1, the illustrated container lid printing apparatus is
The container lid transfer means 2b and the pattern transfer means 4b are provided. The container lid transporting means 2b shown in the figure is a conveyor having a driving wheel 6 and a driven wheel 8 arranged at intervals, and an endless winding member 10 wound between the driving wheel 6 and the driven wheel 8. Means 12 are included.
The drive wheel 6 is a drive source such as an electric motor (not shown)
Is rotated in the direction indicated by arrow 14, whereby the upper traveling portion 10a of the endless winding member 10 is moved in the direction indicated by arrow 16, and the lower traveling portion 10b is moved in the direction indicated by arrow 18. As shown in FIG. 2, the endless winding member 10 is configured by connecting a T-shaped member 174 having an engaging piece 172 protruding outward to endlessly rotatably. The conveyor means 12 further includes a driving roll 176 and a driven roll 178 disposed on both sides of the driving wheel 6 and the driven wheel 8 and a pair of endless belts wound between the driving roll 176 and the driven roll 178. It has a winding belt 180 (only one endless winding belt is shown in FIG. 2). Drive roll 1
76 is rotated in the direction indicated by arrow 182, whereby the upper running portion 180a of each endless winding belt 180 constituting the guide member is moved in the direction indicated by arrow 184, and the lower running portion 180b thereof is indicated by arrow 186. It is moved in the direction shown. The traveling speed of the endless winding belt 180 is set to be slightly lower than the traveling speed of the endless winding member 10. The above-mentioned endless winding belt 180 is arranged on both sides of the endless winding member 10, and its upper traveling portion 180a.
Extends upward along the upper traveling portion 10a of the endless winding member 10, and the engaging pieces 172 provided at intervals in the endless winding member 10 are provided as a pair of engaging pieces 172 as shown in FIG. The endless winding belts 180 protrude upward through the gaps. In the first embodiment, as shown in FIGS. 1 and 2, the container lid 42 for printing is supplied in an inverted state onto the upper traveling portion 180a of the pair of endless winding belts 180, and then the printing is performed. It is continuously conveyed through zone A.

The pattern transfer means 4b shown in FIG.
The rotary support 144 is disposed above the rotary support 144 and is rotated in the direction indicated by the arrow 24, and a plurality of cylindrical projections 146 are provided on the peripheral surface of the rotary support 144.
Each of the cylindrical protrusions 146 has an offset blanket 148 on the tip surface. This cylindrical protrusion 1
The offset blanket 148 of 46 is moved in the direction indicated by arrow 24 in association with the rotation of the rotary support 144 in synchronization with the engagement piece 172 provided on the endless winding member 10. A plate cylinder 28 having a plate plate 26 is arranged above the pattern conveying means 4b, and rolls 32a,
Ink supply means 34, 36 and 38 composed of 32b and 32c are provided. Therefore, the ink adhering to the surface of the plate 26 is transferred to the surface of the offset blanket 148 of the pattern conveying means 4b as a printing ink pattern to be printed, and the printing ink pattern held on the surface of the offset blanket 148 is shown by the arrow 24. In the direction through the print zone A.

Below the print area A, a pressing means 76b is arranged. The pressing means 76b shown in the figure corresponds to each endless winding belt 180, and the pressing guide means 150 is movably mounted over a predetermined range in a direction approaching and separating from the pattern transporting means 4b. Pressing guide means 15
The spring means 1 arranged between the lower surface of 0 and the apparatus main body 86.
Includes 52. The spring means 152 is the pressing guide means 15
0, thereby elastically biasing it upward, that is, in the direction of approaching the pattern conveying means 4b, whereby each of the pressing guide means 150 has an upper surface of each endless winding belt 1
By contacting the back surface of the upper traveling portion 180a of 80, each upper traveling portion 180a is elastically biased upward.

In the container lid supply area B, which is located upstream of the printing area A, container lid supply means (not shown), which may be of any suitable form known per se, is provided.

The operation and effect of the container lid printing apparatus according to the first embodiment as described above will be described. In the container lid supply area B, above the pair of endless winding belts 180 moving in the direction indicated by the arrow 184. The container lid 42 is supplied on the traveling portion 180a at appropriate intervals. The container lid 42 itself may be of a well-known form having a circular top wall and a cylindrical skirt wall depending from the peripheral edge of the top wall. Such a container lid 42 is supplied to the upper traveling portion 180a of the pair of endless winding belts 180 in an inverted state, that is, with the lower end of the skirt wall thereof facing upward. The container lid 42 placed on the upper traveling portion 180a is guided by the action of the endless winding belt 180, and the guide member 188 is disposed above the pair of endless winding belts 180 at a distance (FIG. 2). Is conveyed toward the print area A while being guided by (indicated by the two-dot chain line). The guide member 188 extends from a position slightly downstream of the container lid supply area B to a position upstream of the container lid discharge area C through the printing area A.

When the container lid 42 is conveyed by a predetermined amount as described above, as can be understood from FIG. 1, the endless winding member 1
The engaging piece 172 provided at the position of moving from the lower traveling portion 10b to the upper traveling portion 10a of 0 has an endless winding belt 18
0 is abutted on the container lid 42 on the upper traveling portion 180a, and thereafter the container lid 42 on the upper traveling portion 180a is the endless winding member 1.
By the action of the engagement piece 172 of 0, it is conveyed toward the print area A. While the container lid 42 is conveyed in the direction indicated by the arrow 16 by the action of the engaging piece 172, the endless winding member 10 is provided.
The moving speed of the endless winding belt 18 is set to be slightly higher than the moving speed of the endless winding belt 180.
The upper container lid 42 is moved while sliding on the upper surface of the upper traveling portion 180a.

In the print area A, as shown in FIGS. 1 and 2, the rotary support 144 moving in the direction indicated by the arrow 24.
The cylindrical protrusion 146 of the container moves in the direction indicated by the arrow 16 by the action of the engaging piece 172.
8 and thus the printing ink pattern held on the surface of the offset blanket 148 of the cylindrical protrusion 146 is transferred to the inner surface of the top wall 72 of the container lid 42. In the print area A, the upper running portion 180a of the pair of endless winding belts 180 is elastically biased toward the pattern conveying means 4b by the action of the pressing means 76b, so that the endless winding belt 180 is placed. The inner surface of the top wall 72 of the container lid 42 has an offset blanket 148 at a required pressure.
The printed ink pattern held on the surface of the offset blanket 148 is transferred as desired.

The printed container lid 42 is then conveyed toward the container lid discharge area C in the direction indicated by the arrow 16. When the container lid 42 is conveyed from the print area A by a predetermined amount, the engaging piece 172 acting on the container lid 42 moves from the upper traveling portion 10a to the lower traveling portion 10b, as will be understood from FIG. The lid 42 is conveyed toward the container lid discharge area C by the action of the upper traveling portion 180 a of the endless winding belt 180. In the container lid discharge area C, the container lid 42 on the endless winding belt 180 is supplied to a discharge chute (not shown).

Next, a second embodiment of the container lid printing apparatus constructed according to the present invention will be described with reference to FIGS. 3 and 4. The device in this second embodiment is adapted for printing on the inside and outside of the top wall of a container lid, as will be apparent from the following description.

Mainly referring to FIG. 3, the illustrated container lid printing apparatus includes a container lid transfer means 2c and a pattern transfer means 4c.
It has and. The container lid transporting means 2c has an arrow 190.
And a plurality of (eight in the illustrated case) cylindrical protrusions 194 provided at intervals in the circumferential direction on the peripheral surface of the rotary support 192 that is rotated in the direction indicated by. ing. Each of the tubular protrusions 194 has a cylindrical shape in cross section, and protrudes outward in the radial direction of the rotary support 192. Each of the cylindrical protrusions 194 is moved in the direction indicated by the arrow 190 in association with the rotation of the rotary support 192, and the tip end thereof is provided with a pressing means 76c as enlargedly shown in FIG. Has been. A shoulder portion is provided at the tip of each cylindrical protrusion 194, and an annular member 196 is fixed to the shoulder portion.
The pressing means 76c includes an annular contact member 198,
The abutting member 198 is movably attached to the tip end portion of the cylindrical protrusion 194 over a predetermined range, and a coil spring 200 constituting a spring means is arranged between the abutting member 198 and the annular member 196. It is set up. The coil spring 200 acts on the contact member 198 to elastically bias the contact member 198 outward in the axial direction of the cylindrical protrusion 194. The rotary support 192 and the cylindrical protrusion 194 constitute a container lid conveying means and also a pattern conveying means for conveying a pattern to be printed on the inner surface of the top wall 72 of the container lid 42. Explaining further, each cylindrical protrusion 19
4 has an offset blanket 202 formed of a flexible material on the front end surface thereof. In addition, the rotary support 19
A plate cylinder 28a having a plate plate 26a is disposed below 2, and three plate cylinders 28a that are rotated in a direction indicated by an arrow 204 are surrounded by three plate cylinders 28a that are rotated in a predetermined direction indicated by an arrow. Ink supply means 3 comprising rolls 32a, 32b and 32c
4, 36 and 38 are provided. Therefore, as in the above-described embodiment, the ink supplied between the rolls 32a and 32b of the ink supply means 34, 36 and 38 is rotated in the direction indicated by the arrow 204 via the roll 32c.
The ink supplied to the surface of the plate plate 26a of 8a and attached to the surface of the plate plate 26a is transferred to the surface of the offset blanket 202 of the cylindrical protrusion 194 that moves in the direction indicated by the arrow 190 as a printing ink pattern to be printed. It Then, the printing ink pattern held on the surface of the offset blanket 202 is continuously conveyed through the printing area A in the direction indicated by the arrow 190 along with the rotation of the rotary support 192.

Above the print area A, the pattern transfer means 4c is arranged. The illustrated pattern transfer means 4c
Has an offset blanket 206 formed on its surface from a flexible material. A plate cylinder 28b having a plate plate 26b is arranged above the pattern transfer means 4c which rotates in the direction indicated by the arrow 208, and is rotated in the direction indicated by the arrow 3 around the plate cylinder 28b. Individual rolls 32a,
Ink supply means 34, 36 and 38 including 32b and 32c are provided. As such, the rolls 32a and 32 of the ink supply means 34, 36 and 38 are as described above.
The ink supplied between b and the arrow 2 passes through the roll 32c.
The ink supplied to the surface of the plate cylinder 28b rotating in the direction indicated by 10 and attached to the surface of the plate 26b is the offset blanket of the pattern conveying means 4c rotating in the direction indicated by the arrow 208 as a printing ink pattern to be printed. 20
The printing ink pattern to be printed, which is transferred to the surface of No. 6 and held on the surface of the offset blanket 206, is continuously conveyed through the printing area A in the direction shown by the arrow 208 in synchronization with the movement of the container lid described later. .

A container lid supply area B exists on the upstream side of the printing area A when viewed in the moving direction of the cylindrical projection 194 indicated by the arrow 190, and the container lid fitting means 212 is provided in the container lid supply area B.
Is provided. The illustrated container lid fitting means 212 is a rotary support 216 that is rotated in the direction indicated by arrow 214, and a stationary cam member 21 that is disposed inside this rotary support 216.
7, a plurality of suction holding members 218 are provided on the rotary support 216 at intervals in the circumferential direction. Each of the suction holding members 218 includes a suction holding portion 220 a and a shaft portion 2.
20b, the shaft portion 220b of which is attached to the rotary support 214 so as to be movable in the radial direction. Further, the driven roller 2 is attached to the inner end of the shaft portion 220b of each suction holding member 218.
22 is rotatably mounted, and the driven roller 222
Is a stationary cam member 2 by the action of a spring member (not shown) or the like.
It is attached to the circumference of 17. Stationary cam member 21
In FIG. 7, the portion facing the container lid supply area B, in other words, the portion aligned with the container lid supply area B is most projected (that is, the distance from the center of the stationary cam member 217 to the working peripheral surface is the longest). Has become). Therefore, the rotary support 21
When 6 rotates in the direction indicated by arrow 214, the rotation support 2
Along with the rotation of 16, the suction holding member 218 also has an arrow 214.
When the suction holding member 218 is moved toward the container lid supply area B, the suction holding member 218 is gradually protruded in the radial direction of the rotary support 216 and moves in a direction away from the container lid supply area B. At that time, it is gradually retracted in the radial direction. The suction holding member 21 that moves as described above
8 is a cylindrical protrusion 194 provided on the rotary support 192.
It is performed in synchronization with the movement of. Although not shown in the container lid fitting means 212, each suction holding member 2
A suction hole is provided on the outer end surface of the suction holding portion 220a of 18, and the suction hole and the suction source (not shown) are indicated by an arrow 21.
In a region from the container lid receiving region D existing on the upstream side of the container lid supply region B to the container lid supply region B when viewed in the direction indicated by 4, the communication is established via the suction flow path. There is.

In the container lid receiving area D, container lid transfer means 22
4 are provided. The illustrated container lid transfer means 224 is
A pair of rolls 226 (only one of which is shown in FIG. 3) and an endless transfer belt 228 wound between the rolls 226.
And the upper running portion 22 of the endless transfer belt 228.
8a is moved in the direction indicated by arrow 230.

Next, the function and effect of the container lid printing apparatus as described above will be described. The container lid 42 formed by compression molding or injection molding (substantially the same as the container lid shown in the first embodiment) is the endless transfer belt 22.
8 is placed on the upper traveling portion 228a, and is conveyed toward the container lid receiving area D in the direction indicated by the arrow 230 by the action of the upper traveling portion 228a.

In the container lid receiving area D, the suction holding portion 2 of the suction holding member 218 moving in the direction indicated by the arrow 214.
The suction hole (not shown) provided in 20a and the suction source (not shown) are in communication with each other via the suction flow path, and the top wall 72 of the container lid 42 moves in the direction indicated by the arrow 230.
(FIG. 4) The outer end surface of the suction holding portion 220a of the suction holding member 218 is positioned slightly above the outer surface, and the container lid 42 on the endless transfer belt 224 has its top wall 72 suction-held by the action of the suction source. Suction holding portion 22 of member 218
It is adsorbed and held at 0a. Then, the container lid 42 held by the suction holding member 218 is conveyed from the container lid receiving area D to the container lid supply area B in the direction indicated by the arrow 214.

On the other hand, the ink attached to the surface of the plate 26a of the plate cylinder 28a which rotates in the direction indicated by the arrow 204 has a cylindrical shape of the rotary support 192 which rotates in the direction indicated by the arrow 190 as a printing ink pattern. The cylindrical protrusion 194, which is transferred to the offset blanket 202 of the protrusion 194 and holds the printing ink pattern on the surface, is moved toward the container lid supply area B in the direction indicated by the arrow 190.

In the container lid supply area B, the suction holding member 218 moving in the direction indicated by the arrow 214 comes to face the cylindrical projection 194 moving in the direction indicated by the arrow 190, and is held by the suction holding member 218. The distal end of the cylindrical protrusion 194 is inserted into the skirt wall 128 (FIG. 4) of the container lid 42 thus formed, and thus the container lid 42 is fitted onto the cylindrical protrusion 194 as shown in FIG. . Such a container lid 42
3, the suction holding member 218 is gradually protruded in the radial direction of the rotary support 216 when moving toward the container lid supply area B, and is held by the suction holding member 218. Since the container lid 42 thus moved is moved in the direction toward the cylindrical protrusion 194, it is achieved as required with the rotation of the rotary supports 192 and 216. Container lid 4
When 2 is fitted as required, as shown in FIG. 4, the lower end of the skirt wall 128 abuts the abutment member 198 to prevent the rotational support 192 from moving inward in the radial direction, thus. The container lid 42 fitted to the cylindrical protrusion 194 is held in a state where the inner surface of the top wall 72 is separated from the tip end surface of the cylindrical protrusion 194. Then, the container lid 42 fitted as described above is sucked and held by the suction holding portion 220a of the suction holding member 218 as the rotation supports 192 and 216 are rotated.
Then, the sheet is conveyed through the print area A toward the container lid discharge area C in the direction indicated by the arrow 190 in a state of being fitted to the cylindrical protrusion 194.

When the container lid 42 is conveyed to the print area A,
In the printing area A, the top wall 72 of the container lid 42 is provided on the surface of the offset granette 206 of the pattern conveying means 4c.
The outer surface is pressed, and the inner surface of the top wall 72 of the container lid 42 is pressed against the surface of the offset blanket 202 provided at the tip of the cylindrical protrusion 194, thus being held on the surface of each of the offset blankets 202 and 206. The printing ink patterns are transferred to the inner surface and the outer surface of the top wall 72 of the container lid 42, respectively. More specifically, in the print area A, when the surface of the pattern conveying means 4c acts on the outer surface of the top wall 72 of the container lid 42 fitted to the cylindrical protrusion 194, as will be understood from FIGS. In the step, the container lid 42 is elastically biased toward the surface of the pattern conveying means 4c by the action of the coil spring 200 of the pressing means 76c, and thus the outer surface of the top wall 72 of the container lid 42 is offset by the required pressure to the offset blanket 206.
The pattern transfer means 4c acts as a pressing means in the subsequent stage to resist the elastic biasing force of the coil spring 200 and bring the container lid 42 close to the tip end surface of the cylindrical projection 194. The container lid 42 is elastically biased toward the surface of the offset blanket 202 provided on the cylindrical protrusion 194, and thus the inner surface of the top wall 72 of the container lid 42 is at a required pressure. It is pressed against the surface of the offset blanket 202. As described above, in the print area A, the print ink pattern held on the surface of the offset blanket 206 that moves in the direction indicated by the arrow 208 is applied to the outer surface of the top wall 72 of the container lid 42 as required. The printing ink pattern held on the surface of the offset blanket 202 that moves in the direction indicated by the arrow 190 is applied to the inner surface of the top wall 72 of the container lid 42 as required.

The printed container lid 42 is then conveyed to the container lid discharge area C, and is separated from the cylindrical projection 194 in the container lid discharge area C as required, and then is shown in the drawing. Transported in the direction indicated by the arrow by no discharge chute.

Instead of the container lid fitting means 212 consisting of the rotary support 216, the suction holding member 218 and the stationary cam member 217, the container chute fitting means may be constituted by a transfer chute. Further, instead of simultaneously printing on the outer surface and the inner surface of the top wall 72 of the container lid 42, if desired, it can be applied as an apparatus for printing the inner surface of the top wall 72. When applied as a device for printing on the inner surface of the top wall 72 of the container lid 42, the pattern transfer means 4
c and members related thereto (ink supply means 34, 36)
And 38, the plate cylinder 28b having the plate plate 26b, etc.) may be replaced by a compression roller (which constitutes a pressing means) for pressing the outer surface of the top wall 72 of the container lid 42 in the printing area A. In the printing area A, the inner surface of the container lid 42 is pressed against the surface of the offset blanket 202 of the cylindrical protrusion 194 with a required pressure against the elastic biasing force of the coil spring 200 by the action of the pressing roller. Become.

Although several embodiments of the container lid printing apparatus constructed according to the present invention have been described above, the present invention is not limited to these embodiments and does not depart from the scope of the present invention. Various variations and modifications are possible.

[Brief description of drawings]

FIG. 1 is a simplified diagram showing a first embodiment of a container lid printing apparatus configured according to the present invention.

FIG. 2 is a partial cross-sectional view showing the vicinity of a print area in the container lid printing apparatus in FIG.

FIG. 3 is a simplified diagram showing a second embodiment of the container lid printing apparatus configured according to the present invention.

FIG. 4 is a partial cross-sectional view showing a state in which the container lid is fitted on the tip end portion of the cylindrical protrusion of the container lid printing apparatus in FIG.

[Explanation of symbols]

 2b and 2c: Container lid transport device 4b and 4c: Pattern transport means 42: Container lid 72: Container lid top wall 76b and 76c: Pressing means 128: Container lid skirt wall 144 and 192: Rotating support 146 and 194 : Cylindrical protrusion A: Printing area B: Container lid supply area C: Container lid discharge area

Claims (5)

[Claims] 1. A container lid transport including a conveyor means having an endless winding member for continuously transporting a container lid having a ceiling wall and a cylindrical skirt wall hanging from a peripheral edge of the ceiling wall through a printing area. Means, a rotary support, and a plurality of cylindrical projections provided on the rotary support at intervals in the circumferential direction and projecting in the radial direction, and a pattern to be printed is provided on the tip surface of the cylindrical projection. And the pattern is continuously conveyed through the printing area in synchronization with the conveyance of the container lid by the rotation of the rotary support, and the tip end surface of the cylindrical protrusion is kept inside the container lid in the printing area. And a pattern transfer means for inserting the pattern into the printing area, and pressing the tip end surface of the cylindrical projection and the inner surface of the top wall of the container lid in the printing area with a required pressure, thus printing the pattern corresponding to the container. The top wall of the lid Pressing means for applying to an inner surface, and the endless winding member of the conveyor means in the container lid conveying means, disposed around the endless winding member, in the same direction as the running direction of the endless winding member and in the endless shape. An endless winding belt that is driven at a speed lower than the traveling speed of the winding member, and the container lid is supplied to the upper traveling portion of the endless winding belt with an interval in an inverted state. A plurality of engaging pieces for engaging the container lid on the upper traveling portion of the endless winding belt and moving the container lid are arranged on the belt-shaped winding member at intervals in the traveling direction. A container lid printing device characterized by the following. 2. A rotary support and a plurality of cylindrical projections provided on the rotary support at intervals in the circumferential direction and projecting in the radial direction, and suspended from a ceiling wall and a peripheral edge of the ceiling wall. A container lid having a tubular skirt wall is fitted to the cylindrical protrusion by means of container lid fitting means in the supply area, and the container lid is continuously conveyed through the printing area by rotation of the rotary support. A lid carrying means, a pattern carrying means for carrying the pattern to be printed held on the surface continuously through the printing area in synchronization with the carrying of the container lid, and the surface of the pattern carrying means in the printing area And the outer surface of the top surface wall of the container lid, which is fitted to the cylindrical projection of the container lid transfer means, are pressed with a required pressure, and thus printing corresponding to the pattern is performed on the top surface wall of the container lid. On the outside Pressing means, the pressing means being movably mounted around each of the cylindrical projections in a radial direction over a predetermined range, and the corresponding contact members being radially outward. The container lid, which is elastically biased, is fitted to the cylindrical protrusion so that the lower end of the skirt wall is brought into contact with the corresponding contact member so that the inner surface of the top wall is A second pattern to be printed is held on each tip surface of the tubular projections, and the second pattern to be printed is held on the tip surfaces of the tubular projections. And the second pattern carrying means, and the pattern carrying means also acts as the second pressing means, and the outer surface of the top wall of the container lid in the printing area is the pattern carrying means. When pressed against the surface of the top wall of the container lid Surface is pressed printing corresponding to the pattern of the second is applied to the inner surface of the top wall of the container lid on the distal end surface of the cylindrical projecting member, the container closure printing apparatus characterized by. 3. A rotary support and a plurality of cylindrical projections, which are provided on the rotary support and are spaced apart in the circumferential direction, and project in the radial direction, which constitute the pattern transfer means together with the container lid transfer means. Holding a pattern to be printed on the tip surface of the tubular protrusion,
A container lid having a top wall and a cylindrical skirt wall hanging down from the peripheral edge of the top wall is fitted on the cylindrical projection by means of container lid fitting means in the supply area, and the container lid is rotated by rotation of the rotary support. The inner surface of the top wall of the container lid is pressed by the required pressure to the tip surface of the cylindrical projection by the action of the pressing means in the printing area, and thus the pattern is formed. 2. The container lid printing apparatus, wherein printing corresponding to is applied to the inner surface of the top wall of the container lid main body. 4. The container lid printing apparatus according to claim 3, wherein the pressing means comprises a pressing roller which is pressed against the outer surface of the top wall of the container lid in the printing area. 5. A contact member mounted movably around a predetermined range in a radial direction around each of the cylindrical projections,
Spring means for elastically biasing the contact member outward in the radial direction is provided, and the container lid fitted to the tubular projection in the supply region has a lower end of a skirt wall of the contact member. The container lid printing device according to claim 3 or 4, wherein the inner surface of the ceiling wall is separated from the tip end surface of the cylindrical projection by abutting.