JPH0647251U - Feeding device for raw material - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the occurrence of slippage between the material and the feed roller, and realize the constant-size feeding of the material. [Structure] A constant-size feeding device 1 feeds an outer peripheral surface into a feed roller 15 for feeding an original fabric 2 to a fixed size and a bypass L of the original fabric 2 formed along the outer peripheral surface of the feed roller 15. The pressing roller 17 is provided so as to be pressed against the roller 15. Feed roller 15 and press roller 17
Is connected to the rotation drive device 18, and the peripheral speed of the pressing roller 17 is set to be slightly higher than the peripheral speed of the feed roller 15.
As a result, the original fabric 2 is strongly pressed against the outer peripheral surface of the feed roller 15, and slippage between the original fabric 2 and the feed roller 15 is prevented.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fixed-size feeding device of a raw material used for feeding a printed raw material to a processing machine such as a foiling machine at a fixed size.

[0002]

[Prior art]

 To attach a metal foil to a printed material using a foiling machine, send the material to the foiling machine at a fixed size, and attach the foil to the foiling machine of the foiling machine. The location needs to be positioned.

Conventionally, this type of constant-size feeding device for an original has a feed roller for feeding the original to a fixed size, and a pressing roller for pressing the original against the outer peripheral surface of the feed roller. Therefore, the feed roller and the press roller are provided at the exit of the foil applicator, and each roller is connected to a rotary drive device to be rotationally driven at the same peripheral speed.

[0004]

[Problems to be solved by the device]

 However, in the case of this type of constant-size feeding device, no special measures have been taken to increase the frictional force between the material and the feed roller, so slippage occurs between the two and the feeding length of the material is subtle. However, there is a problem that it is difficult to accurately position the foil-fed portion of the original film with respect to the foil-fed working section of the foil-fed machine, and it is difficult to apply the foil at a proper position.

The present invention has been made in view of the above problems, and prevents the occurrence of slippage between the original fabric and the feed roller, thereby realizing the constant size feed of the original fabric and performing the proper processing. It is an object of the present invention to provide a fixed-length feeding device for a raw material that is capable of.

[0006]

[Means for Solving the Problems]

 A constant-size feeding device for a raw material according to the present invention includes a feed roller for feeding the raw material to a fixed size, and an outer peripheral surface of the feed roller formed in a bypass path of the raw material formed along the outer peripheral surface of the feed roller. The press roller is provided so as to be pressed against, and the feed roller and the press roller are connected to a rotation drive device, and the peripheral speed of the press roller is set to be slightly higher than the peripheral speed of the feed roller.

[0007]

[Action]

 Since the original fabric is drawn into the bypass along the outer peripheral surface of the feed roller, the contact area between the original fabric and the feed roller increases, and the peripheral speed of the presser roller is set to be higher than that of the feed roller. It is pulled by the presser roller and strongly pressed against the outer peripheral surface of the feed roller. As a result, the frictional force between the feed roller and the original roll increases, slippage between the original fabric and the feed roller is prevented, and constant-size feed is realized.

[0008]

【Example】

 FIG. 1 shows an original foil-fed system in which a constant-size feeding device 1 according to an embodiment of the present invention is introduced. This foiling system is for foil-printing a metal foil on a printed original fabric 2. The original fabric feeding mechanism 4 is on the upstream side of the foiling machine 3 and the original fabric winding is on the downstream side. Each of the take-up mechanisms 5 is provided, and the constant-size feeding device 1 is provided between the foiling machine 3 and the original web winding mechanism 5.

A predetermined printing is applied to one surface of the original fabric 2, and the foiling machine 3 performs a predetermined foil application on the printing surface of the original fabric 2 at a regular interval. I do.

The original fabric feeding mechanism 4 is composed of a feeding roller 6 around which the printed raw fabric 2 is wound, and an AC servomotor 8 which rotationally drives the feeding roller 6 via a transmission means 7. Guide rollers 9a to 9c are provided in the feeding direction of 2 to guide the fed original fabric 2 to the foiling machine 3.

The original fabric winding mechanism 5 rotates a winding roller 10 for winding the original fabric 2 foiled by the foiling machine 3 and the winding roller 10 via a transmission means 11. It is composed of an AC servo motor 12, and guide rollers 13a to 13c are provided between the original web winding mechanism 5 and the constant-size feeding device 1 to guide the original web 2 after foiling to the winding roller 10. It is like this.

As shown in FIGS. 1 and 2, the constant-size feeding device 1 includes a feeding roller 15 arranged outside the original fabric outlet 14 of the foil-forming machine 3 and an upper portion of the feeding roller 15. Bypass roller 16 slightly displaced from the feed roller 15 toward the foil-applying machine 3 and slightly displaced from the feed roller 15 toward the guide roller 13a above the feed roller 15. The pressing roller 17, the feed roller 15, the detour roller 16, and the rotary drive device 18 for rotating the pressing roller 17 simultaneously and intermittently.

The feed roller 15 is for feeding the original fabric 2 to a fixed size, is entirely made of metal, and has a larger diameter than the detour roller 16 and the pressing roller 17. The detour roller 16 is for forming the detour L of the original web 2 along the outer peripheral surface of the feed roller 15, and the outer peripheral surface is formed of rubber or urethane, and the outer peripheral surface of the feed roller 15 is formed by the pressing spring 19. Is being oppressed to.

The pressing roller 17 is for pressing the original fabric 2 against the outer peripheral surface of the feed roller 15 over substantially the entire length of the detour L 1, and the outer peripheral surface is formed of rubber or urethane. Similar to the roller 16, the pressing spring 20 elastically biases the outer peripheral surface of the feed roller 15. The pressing roller 17 has a smaller diameter than the feed roller 15, but has a slightly larger diameter than the detour roller 16.

As shown in FIG. 3, the rotary drive device 18 includes an AC servo motor 21 as a drive source, a transmission unit 22 for transmitting the rotational drive force of the AC servo motor 21 to the feed roller 15, and a feed unit. It is composed of transmission gears 23a to 23c for transmitting the rotational driving force of the roller 15 to the bypass roller 16 and the pressing roller 17B. The first transmission gear 23a is attached to the roller shaft of the press roller 15, the second transmission gear 23b is attached to the roller shaft of the bypass roller 16, and the third transmission gear 23c is attached to the roller shaft of the press roller 17. The first and second transmission gears 23a are meshed with the second and third transmission gears 23b and 23c.

The transmission gears 23a to 23c are set to have a gear ratio such that the peripheral speeds of the feed roller 15 and the bypass roller 16 are equal, and the peripheral speed of the presser roller 17 is slightly higher than the peripheral speed of the feed roller 15. There is.

The intermittent rotation operation of each AC servomotor 8, 10, 21 is synchronized, and its control is performed by a controller (not shown).

Next, the operation will be described. The material 2 fed from the feeding roller 6 of the material feeding mechanism 4 is fed to the foil-applying machine 3 via the guide rollers 9a to 9c, and the foil-applying machine 3 attaches the foil. The sheet is injured and sent out from the original fabric outlet 14. In this case, the raw fabric 2 is fed to the foil sizing machine 3 by the constant size feeding device 1 to the constant size, and the raw fabric 2 after the foiling is fed to the raw fabric winding mechanism 5 via the guide rollers 13a to 13c. It is wound around the winding roller 10.

In the constant-size feeding device 1, since the original fabric 2 is drawn into the bypass L along the outer peripheral surface of the feed roller 15, the original fabric 2 and the feed roller 15 contact each other over substantially the entire length of the bypass L, and both The contact area of is increased. Moreover, since the peripheral speed of the press roller 17 is higher than that of the feed roller 15, the pulling force of the press roller 17 acts on the original fabric 2 to press it strongly against the outer peripheral surface of the feed roller 15. In this case, a slight slip occurs between the pressing roller 17 and the original 2.

Thus, the frictional force of the contact surface between the feed roller 15 and the raw sheet 2 is increased, and the occurrence of slippage between the raw sheet 2 and the feed roller 15 is prevented. Sized delivery to 3 is realized.

The original-feeding device 1 is not limited to the above-described foil-foiling system for originals, but can be applied to a system for cutting an original at a predetermined position.

[0022]

[Effect of device]

 As described above, the present invention forms a detour along the outer peripheral surface of a feed roller for feeding a raw material to a fixed size, and presses the outer peripheral surface against the feed roller in the detour. In addition, the feed roller and the presser roller are linked to the rotary drive, and the peripheral speed of the presser roller is set to be slightly higher than the peripheral speed of the feed roller, which increases the frictional force between the feed roller and the original fabric. As a result, it is possible to prevent the occurrence of slippage between the original fabric and the feed roller, and to realize the constant feed of the original fabric for proper processing. .

[Brief description of drawings]

FIG. 1 is a perspective view showing the outer appearance of an original foil foiling system incorporating a constant-size feeding device according to an embodiment of the present invention.

FIG. 2 is a side view showing a configuration of a constant-size feeding device.

FIG. 3 is a front view showing a configuration of a constant-size feeding device.

[Explanation of symbols]

 1 Fixed-Sized Feeding Device 2 Raw Fabric 15 Feeding Roller 17 Holding Roller 18 Rotational Drive L Detour

Claims (1)

[Scope of utility model registration request] 1. A feed roller for feeding an original fabric to a fixed size, and an outer peripheral surface pressed against the feed roller in a bypass of the original fabric formed along the outer peripheral surface of the feed roller. A fixed-size feed device for a raw material, comprising a press roller, wherein the feed roller and the press roller are connected to a rotation drive device, and the peripheral speed of the press roller is set to be slightly higher than the peripheral speed of the feed roller.