JPS602931Y2 - Automatic marking device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device for automatically stamping a loft number or a serial number on bags in an automatic packaging device for filling and packaging powder and granular materials.

Conventionally, some of the above-mentioned stamping devices move a filled bag, rotate a rotary stamping roller as a result of this movement, and stamp the bag.

With this device, the contact point between the bag and the rotary stamper is only one character, so it is possible to make a clear stamp. However, since the stamp is stamped on a filled bag, changes in the filling rate can cause wrinkles and spots on the stamped surface of the bag. It was easy to do.

Therefore, if an unfilled bag is stamped using a rotary stamping roller, a clear stamp can be made without a stamper, but when this device is applied to a filled bag as described above,
For example, a rotary stamping roller can be installed in the middle of moving the bag toward the sheets, so it does not take up much space, but if this device is applied to an unfilled bag, the empty bag can be moved for stamping. This required extra space and was undesirably large.

The object of this invention is to provide an automatic stamping device that can print clear and spotless stamps without requiring extra space.

This invention will be explained below based on two illustrated embodiments.

A first embodiment is shown in FIGS. 1 to 5.

Reference numeral 1 shown in FIG. 2 is a base, and a rail 2 is fixed to the upper surface of the base.

A truck 3 is provided so as to straddle the rail 2 in its width direction, and rollers 4 are rotatably attached to the inner surfaces of both side walls of the truck 3 so as to sandwich the rail 2 from above and below.

Reference numeral 5 denotes an air cylinder, which is installed at the center of the upper surface of the rail 2 along its length, and has a rod 7 connected to an arm 6 that protrudes from the trolley 3 toward the left in FIG. The trolley 3 is driven forward and backward along the rail 2 according to the movement of the rod 7.

As shown in FIGS. 1 and 2, when the cart 3 is moving forward, the empty bag 8, which is fixed with the bag opening regulated to the left, is positioned on both sides of the overlapping sides. A pair of arms 9 and 10 are provided on the upper surface of the truck 3.

These arms 9 and 10 are respectively pivotally supported on the trolley 3 in the middle, and an air cylinder 1 is placed between the rear ends of these arms 9 and 10.
1 is provided, and is opened and closed by this air cylinder 11.

12 and 13 are gears for operating arms 9 and 10 at the same time.

Reference numeral 14 denotes a rotary stamping roller for stamping lot numbers, which is rotatably provided at the tip of the arm 10. Reference numeral 15 denotes a roller, which is also rotatably provided at the tip of the arm 9.

The marking roller 14 and the bearing roller 15 are the arm 9
, 10 are pressed against the overlapping surfaces of the empty bag 8 in a closed state.

16 is an ink roller for supplying ink to the marking roller 14, and 17 and 18 are limit switches for controlling this automatic marking device.

The automatic stamping device configured as described above operates as follows.

Assume now that the empty bag 8 is fixed, the arms 9 and 10 are opened, and the cart 3 is moved backward, as shown in FIG. 5A.

In this state, when the air cylinder 5 is operated to move the rod 7 forward, the trolley 3 moves forward and reaches both sides of the empty bag 8 with the arms 9 and 10 opened as shown by the opening in the figure.

When the air cylinder 11 is operated in this state, the arms 9 and 10 close as shown in the figure, and the stamping roller 14 and the receiving roller 15 pinch the empty bag 8.

In this state, when the air cylinder 5 is operated again to move the trolley 3 backward, the empty bag 8 is fixed, and the marking roller 14 and the roller 15 are rotatable.
As shown in FIG. 2, as the arms 9 and 10 retreat, the stamping roller 14 and the roller 15 rotate, and the empty bag 8 is stamped.

When the stamping is completed, the arms 9 and 10 are opened, and the cart 3 returns to its original position, preparing for the next stamping and emptying the empty bag 8.
is sent to an automatic packaging device, and a new empty bag 8 is supplied.

In the second embodiment, as shown in FIG. 6 and FIG.
The second embodiment has the same structure as the first embodiment except that the motor 19 is used to drive the second embodiment, and operates in the same manner.

Equivalent parts are given the same reference numerals and their explanations will be omitted.

These automatic stamping devices use the stamping roller 14 to stamp the empty bag 8, so that it is possible to make clear and spotless stamps. Since the configuration is such that the arms 9 and 10 are moved back while pressing the empty bag 8 and the stamping roller 14 and the receiver roller 15 are rotated to perform stamping, the arms 9 and 10
Since all that is needed is a space for the robot to move forward and backward, it does not require much space and can be downsized.

In the above-mentioned embodiment, a stamping roller for Rondo Nampa is provided, but a numbering roller may be provided in place of this.

Furthermore, although the seal is placed along the lateral direction of the bag, it may be configured such that the seal is placed along the lengthwise or diagonal direction of the bag.

Furthermore, although the arms 9 and 10 were driven to open and close by a single air cylinder 11, for example, the arms 9 and 10 were driven to open and close by a single air cylinder 11.
The arms 9 and 10 are each provided with an air cylinder so that the arms 9 and 10 can move forward and backward in the width direction.
, 10 may be opened and closed.

Furthermore, although the empty bag 8 is pressed between the marking roller 14 and the roller 15 and the arms 9 and 10 are moved backward to stamp the empty bag, it is also possible to press the empty bag 8 and move the arms 9 and 10 forward to stamp the bag.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the first embodiment of the automatic marking device according to this invention, Fig. 2 is a front view of the same, Fig. 3 is a right side view of the same, and Fig.
5 is a schematic perspective view of the same, FIGS. 5A to 5E are schematic views for explaining the operation, FIG. 6 is a plan view of the second embodiment, and FIG. 7 is a front view of the same. 3...Dolly, 5...Air cylinder (
Cart drive unit), 8... Empty bag, 9, 10...
... 1 pair of arms, 11 ... Air cylinder (arm drive section), 14 ... Stamp roller, 1
5...The receiver is a roller, 17...The motor (
(drive unit for trolley).

Claims (1)

[Scope of utility model registration request] a cart configured to be movable forward and backward in the direction along the overlapping surfaces of fixed bags; a cart drive unit for driving the cart forward and backward; A pair of arms provided on the trolley,
an arm drive unit that advances and retreats these arms from both sides of the bag toward the bag; and an arm drive unit that moves the bags when the cart is at the predetermined position and each of the pair of arms has advanced toward the bag; An automatic stamping device comprising a stamping roller and a receiver roller, which are provided on the arm so as to press the bag and are rotatable so as to stamp the bag by moving the trolley while maintaining the pinching state.