KR960000855Y1 - Sheet transfer apparatus of packaging machine - Google Patents

Abstract

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Description

Packaging paper intermittent transfer device of product packaging paper

Figure 1 is a gum packaging product schematically showing the transfer line of the wrapping paper.

Figure 2 shows a preferred embodiment of the present invention, a schematic explanatory view showing the packaging paper intermittent transfer device (A) of the present invention installed on a gum product packaging.

3 is a diagram showing a configuration of a transfer motor control unit.

4 shows an F / D converter and a level detector.

* Explanation of symbols for main parts of the drawings

1: wrapping paper roller 9: wrapping paper driving position cam

2: idler roller 10: tablet

3: wrapper upper feed roller 11: wrapper drive motor

4: wrapper bottom transfer roller 12: wrapper transfer motor control unit

5: Wrapping paper positioning roller 13: Wrapping paper transfer motor

6: position mark sensor 14: motor rotation detector

7: wrapper cutter 15: drive connection

8: proximity sensor

The present invention relates to a product packaging paper for packaging a unit product such as gum, and more particularly relates to a packaging paper intermittent transfer device for intermittently high-speed transfer of the chewing gum packaging paper wrapping the product.

Unit products such as gum are all automated. Automatically cut and supply the lumped gum to a certain thickness, packing the cut and supplied individual gums into inner packaging, packing the packed individual gums into 5 to 8 packs of gum, and 10 to 20 A series of work processes for packaging dogs one box at a time are carried out repeatedly at high speed.

The gum container packaging intermittent transfer device for packaging the individual gums packaged in the inner packaging paper must have compatibility that can be produced by the gum container or eight of the gum container according to the consumer's request.

In particular, consumers in the Middle East had to change the structure of the intermittent conveying device of gum container packaging to meet their needs according to the demand of gum containers containing about five pieces of individual gums, which are different from the domestic market.

The intermittent transfer device of the gum container packaging paper according to the prior art is a lever method, a rack gear method or a one side clutch method. For reference, the one-side clutch method is a method of mechanically operating the clutch by connecting the chain to the motor shaft, and the one-side clutch operates in only one direction, so that the wrapping paper can be intermittently lowered.

In other words, the motor rotates by 360 °, but when it is operated through the one-side clutch, only 180 ° is operated and the remaining 180 ° is rested. This is a mechanical driving method, which causes a problem that the 180 ° length is not constant and a deviation occurs due to the continuous operation. When intermittent transfer devices of this kind of chewing gum packaging paper are used to adjust the number of individual pieces of gum, the power transmission path is driven by driving the upper and lower feed rollers (3, 4) by receiving power from the wrapping paper drive motor (11). It was long and the high speed operation of the wrapping paper was difficult.

For example, about 600 pieces of chewing gum per minute and about 150 pieces of chewing gum can be produced, as well as the ease of wear and damage of mechanical parts, which reduces the operation rate of the wrapping paper, and a position mark sensor that detects a location mark formed on the packaging of chewing gum ( 6) moves frequently, which causes packing defects. When it is operated at a low speed to correct this, the yield per minute is significantly reduced, resulting in a decrease in productivity.

In addition, another prior art packaging paper intermittent transfer device and method is to move the product packaging paper mechanically continuously and to correct the transfer to the automatic gear, etc. according to the position mark sensor, or to detect the feed compensation amount in the control unit to compare with the basic feed amount to add or subtract correction There is a method and a method of calibrating and feeding the mechanically operated intermittent motion of the wrapping paper by the automatic gear, etc. in accordance with the product packaging paper conveying amount. In addition, it is necessary to add a mechanism to prevent the wrapping paper from overlapping.In order to transfer the wrapping paper according to the intermittent motion of the machine, the machine structure or parts must be changed according to the size of the wrapping paper and the amount of wrapping paper. There are major disadvantages, such as installation or packaging When the size is changed, the machine is difficult to remodel, so the installation cost is high, and if the location mark cannot be detected by the position mark sensor during transporting the wrapping paper (when the detection position is out of order), a lot of packaging paper defects occur continuously and the corrective action is performed after the product packaging paper stops. As a result, product defects occurred and the packaging operation rate was also significantly reduced.

Therefore, the object of the present invention was developed to solve the above disadvantages, and the precise position control is achieved by installing a servo motor or stepping motor separately from the conventional wrapping paper driving motor 11 between the upper and lower conveying rollers of the wrapping paper. 200 to 240 gum containers (about 850 pieces of gum) per minute at high speed, with the intermittent operation (feed → stop → transfer → stop) required in the product packaging paper by simple and easy control range input, operation and installation. To provide a packaging paper intermittent transfer device of a product packaging paper so that can be packed.

Hereinafter, the prior art will be described with reference to FIG. 1 before describing the construction and effect of the present invention with reference to the accompanying drawings.

In Fig. 1, reference numeral 1 is, for example, a wrapping paper roller for wrapping a gum container, and the wrapping paper B wound around the wrapping paper roller 1 is supplied to the wrapping paper upper feed roller 3 via a plurality of idle rollers 2. Then, the idler roller 2 and the wrapping paper position adjusting roller 5 and the wrapping paper (B) are supplied to the wrapping paper lower feed roller 4 via the position mark sensor 6 for detecting the position mark. At this time, by the intermittent rotation of the upper and lower transfer rollers 3 and 4 of the wrapping paper, the gum container wrapping paper is conveyed at high speed while repeatedly moving and stopping intermittently.

The supplied gum container wrapping paper (B) is cut by the wrapping paper cutter (7) by a predetermined length, and pushed by the piece of gum (C) transported directly below the cutter (7) thus cut the tarret (10) As it is drawn into it, it is bent first.

At this time, the sensing signal of the proximity sensor 8 is transmitted to the wrapping paper driving motor 11 so that the wrapping paper driving position cam 9 connected to the driving motor is intermittently controlled to control the cutting supply of the gum container wrapping paper B.

Therefore, the packing method of the gum container by the product packaging paper of the prior art is that the sensing signal of the proximity sensor 8 is transmitted to the wrapping paper drive motor 11, the operation of the wrapping paper driving position cam (9) is made, the upper and lower conveying roller (3, 4) rotation is performed and the intermittent action of stopping the drive of the upper end of the wrapping paper and the lower end of the wrapping paper conveying roller 4 by the above-mentioned power by the detection of the position mark sensor 6 is repeated repeatedly. Gum bucket wrapping paper (B) is periodically transported and supplied.

Therefore, high-speed operation is difficult when packaging with chewing gum by adding or subtracting the number of individual chewing gums, and it is a cause of poor packaging of the product. .

Therefore, the characteristic configuration of the present invention is to configure the intermittent transfer device (A) of the wrapping paper driven separately from the drive of the wrapping paper drive motor (11) between the upper and lower conveying rollers (3, 4).

The wrapping paper intermittent transfer device (A) of the present invention includes a wrapping paper transfer motor (13) such as a wrapping paper to be conveyed and a position mark sensor (6) for detecting a position mark on the wrapping paper, a servo motor or a stepping motor to convey the wrapping paper, and The sensing signal detected by the proximity sensor 8 is input to the transfer motor control unit 12 to control the wrapping paper conveying motor control unit 12 for controlling the wrapping paper conveying motor 13 according to the signal, and the rotation of the motor. It consists of a motor rotation detector 14 to detect and a drive connecting portion 15 for connecting the power of the wrapping paper conveying motor to the upper and lower conveying rollers 3 and 4 of the wrapping paper.

The wrapping paper conveying motor control unit 12 detects a detection signal detected from the proximity sensor 8 installed in the wrapping paper driving motor 11 and the position mark sensor 6 installed between the upper and lower conveying rollers 3 and 4. By intermittently and precisely, the rotation of the wrapping paper conveying motor 13 is intermittently controlled by rotation → stop → rotation → stop.

Referring to Figure 3 with respect to the wrapping paper transfer motor control unit 12 in more detail, the transfer motor control unit 12 determines the rotation amount and speed of the wrapping paper transfer motor (servo motor or stepping motor) 13 A servo driver, a PLC (program logic control) for controlling the servo driver to determine the rotation (operation) timing of the wrapping paper transfer motor 13, and a speed of the packaging transfer motor 13; It consists of an F / D converter and a level detector that controls the PLC to synchronize with the speed of the controller.

The F / D converter and level detector are as shown in FIG. Here, the F / D converter is a device for converting the input frequency change (signal) into a DC voltage (0 to 10V), and the level detector is a device for dividing the converted analog voltage into digital 7 bits. Is a device that converts to digital bit voltage.

In the above example of the intermittent intermittent control, the wrapping paper transfer motor 13 is started by the wrapping paper conveying motor control unit 12, and the final target value continues at a predetermined pulse (for example, 110,000 pulses) arbitrarily programmed by the user. Maneuver At this time, the rotation speed of the wrapping paper conveying motor 13 is changed in proportion to the voltage of the F / D converter and the level detector of the conveying motor control unit 12. According to the detection signal of the position mark sensor 6, the transfer motor 13 is not driven to the above programmed pulse (110,000 pulses) and the user has programmed the intermediate starting data (7,000 pulses). After detection).

When the transfer motor 13 is stopped, the wrapping paper is cut by mechanical driving, and after cutting, the driving cam starts the moving motor 13 again and runs to the final target value programmed by the user (for example, 110,000 pulses).

This operation is carried out continuously (intermittently) so that the wrapping paper is cut at a certain position so that the product is packaged.

The wrapping paper conveying motor 13 is preferably a servo motor or a stepping motor as described above.

Eventually, by driving the wrapping paper transfer motor 13 through the drive connecting portion 15, the upper and lower transfer rollers 3 and 4 of the wrapping paper are intermittently rotated to convey the gum container wrapping paper B in the conveying direction.

At this time, the one-time transfer amount is about 1 to 2 mm larger than the pitch of the wrapping paper position mark of the black portion printed on each gum container wrapping paper (B).

Thus, the conveyed gum container wrapping paper B is cut into a wrapping paper cutter 7 operated by the wrapping paper drive motor 11, and after cutting, is cut again and then placed into the wrapping paper cutter 7. Since the intermittent operation is repeatedly performed at a high speed, even if the product packaging paper is operated at high speed, the packaging paper conveying motor control unit 12, the packaging paper conveying motor 13, and the motor rotation detector 14 of the present invention are precisely high speed. Gum container packaging (B) can be repeatedly repeated transfer → stop → transfer → stop between the upper and lower transfer rollers (3, 4) of the wrapping paper. Although a preferred embodiment of the present invention has been described for the packaging of chewing gum packaging for chewing gum can also be applied to the packaging of other products.

Therefore, the packaging paper intermittent transfer device (A) of the present invention has an excellent effect of increasing the operation rate of the product packaging paper and preventing packaging defects by accurately feeding the packaging paper (B) intermittently.

Claims (2)

Between the upper and lower conveying rollers 3 and 4 of the product packaging, install intermittent conveying apparatus A for intermittently driving the upper and lower conveying rollers of the packaging; The intermittent conveying apparatus A is a conveying motor 13 for conveying a wrapping paper, and a wrapping paper conveying motor controller 12 for controlling the wrapping paper conveying motor by the detection detected by the position mark sensor 6 and the proximity sensor 8. And a driving connection part 15 connecting the power of the motor rotation detector 14 and the motor of the transfer motor 13 controlled by the wrapping paper transfer motor controller 12 to the upper and lower transfer rollers 3 and 4 of the wrapping paper. Packaging paper intermittent transfer device of the product packaging paper characterized in that consisting of). 2. The packaging paper intermittent transfer device according to claim 1, wherein the wrapping paper conveying motor (13) is a servo (SERVO) motor or a stepping motor.