JPS5945436B2 - Section Rejector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION In a bottle making machine or the like, at the start of bottle making, a mixture of complete products and incomplete products emerge onto a discharge conveyor.

Generally, these incomplete products are extracted and eliminated in the inspection process after the product is slowly cooled.

However, the arrangement of the products on the conveyor is disorganized into the slow cooling layer, making said extraction very difficult and with a relatively large number of oversights.

Furthermore, both complete and incomplete products are fed into the layer indiscriminately, and the presence of incomplete products causes a reduction in the slow cooling effect of complete products.

Therefore, we focused on the fact that the sections for discharging incomplete products are determined at the time of the start of production, and the order in which the products manufactured in each section are placed on the conveyor is determined.
A device (Japanese Patent Laid-Open No. 48-45251) has been provided which eliminates the above-mentioned drawbacks by continuously removing products manufactured in a particular section which produces incomplete products from a conveyor before reaching the layer.

However, in such equipment, products in a specific section are continuously removed, so depending on the selection of the removal timing, the yield may be affected by the contamination of incomplete products or the exclusion of complete products. This results in a decrease, etc.

It is obvious that the product immediately after applying oil to the special mold is contaminated and is a defective product, but when trying to remove such a specific product using the above device, a large number of perfect products will be removed. This results in a significant decrease in yield.

The main objective of this invention is to be able to reliably remove products that are obviously defective without completely eliminating the product, and therefore without reducing the yield. The section reject corresponds to changes in the product manufacturing order of each section, reversal of the conveyor drive direction, or changes in the timing at which the products manufactured in each section reach a fixed position or reach the reject position due to changes in conveyor speed. The present invention relates to a section rejecter that can be reliably used.

To explain the embodiment shown in the figure, in FIG. 2, the number of light emitting diodes 2□, 2□, . . .
... are arranged on the same circle at equal intervals, and 3 is the light emitting diode holding plate 2□, 2□, ...
The same number of light receiving elements 4□, 42. are arranged so as to face in the same direction.・・・・・・・・・・・・・・・
This is a light-receiving element holding plate.

Between the two fixed holding plates 1 and 3, each light emitting diode 2□, 2□, etc. is placed depending on the rotational position.
A rotary plate 6 having a through hole 5 that allows light from a specific object to pass through to a specific light receiving element facing the light receiving element is arranged.

The rotary plate 6 is interlocked with the device by a mechanism (not shown) so that it rotates once per cycle of the timing drum of a bottle making machine such as an IS machine, and during its rotation, each of the light receiving elements 4,
4 □, ......... bend - + Ma, by the movement of the through hole 5 by 60 rotations of the rotary plate, the light emitting diodes 2 □, 2 □, . . . It sequentially receives light from... and generates electrical signals.

On the other hand, in a bottle making machine, by controlling the timing drum, products are manufactured in each section in one cycle with a certain time lag, for example, in a firing order as shown in Figure 3. .

Therefore, each of the above-mentioned light receiving elements 4□, 4□,...
The output timing of the electrical signals sequentially output from each section S1. S2゜・・・・・・
This corresponds to the operation timing at the reference point in the molding process.

Here, the signals generated from each light-receiving element 4□, 4□, river, and one song are transmitted to each section S1. S2. song・song・°゛・
... At different timings, the conveyor γ is moved at different distances L1 from the upstream shefter 8 installation position. L2゜・・・
Each product A discharged to...
A: It is a timing signal that serves as a reference for determining the reject timing for removing them from the conveyor γ by the rejector 8 located at a specific position. , both the holding plates 1 and 3, the rotary plate 6, and their drive mechanism constitute a timing signal generating means 9.

Each light receiving element 4□, 42.・・・・・・・・・・・・・・・
The order in which timing signals are generated from ・ is unchanged.

On the other hand, each section S1. S2.・・・・・・
The firing order in ....... is set and changed as appropriate regardless of the section number, and the firing order in each section S1. S2゜・・・・・・・・・・・・・・・
・Product AA1. discharged onto conveyor γ. A2.・
The order of conveyance on the conveyor γ and the order of arrival of the light receiving elements 4□, 4□, . . . . . . does not necessarily correspond to the timing signal generation order, and the correspondence relationship may change.

Furthermore, when the driving direction of the conveyor 7 is reversed from the direction of the solid line arrow in FIG. 3 to the direction of the dashed line arrow, each section S1. S
2. Rejector to be installed at a specific position on the opposite side of each product A12 A22............ to be discharged onto the curved color conveyor γ The order of reaching -8' is also completely reversed.

In FIG. 1, reference numeral 11 indicates the timing signal generating means 9.
Each light receiving element 4□, 42.・・・・・・・・・・・・・・・
A signal converting means that arbitrarily converts the order of timing signals output from..., consisting of a matrix port 10, and timing signals aija2 taken out from output terminals corresponding to each section s1j S2j, 4... songs.
The output order of j........... is changed.

That is, by adjusting the matrix port 10, each section S1. S2.・・・・・・・・・・・・・・・
firing order, and conveyor γ
Each section S1. S2
Product A manufactured by ゜・・・・・・・・・・・・・・・
4) A2)... Song... The order of arrival at the glide direction position and the timing signals al, a2.・・・
The output order of . . .

12□, 122. ......... each section S1゜S2.・・・・・・・・・・・・・・・
The same number of AND circuits are provided corresponding to the input terminals of the AND circuits, and each input terminal receives the corresponding timing signal aa from the matrix port 10. Songs... Each song is inputted so that one or two songs are input. It has become.

In addition, each AND circuit 12122,...
The other input terminals of . . . have corresponding flip-flops 13□, 132.・・・・・・・・・・・・
The outputs of ... are inputted respectively.

And each flip-flop 131°132,...
The set terminals of . . . correspond to the continuous removal command switches Sc1. Sc2.・
・・・・・・・・・・・・・Specific product removal command switch SpI zSp2.・・・・・・・・・・・・
...is connected.

Each continuous removal command switch Scl 2 Sc22 ・
. . . is one in which either the on or off state is selectively maintained.

When a certain section outputs an incomplete product at the time of starting product manufacturing, etc., the continuous removal command switch corresponding to the section is turned on, and a timing signal is input from the matrix port 10 to the corresponding AND circuit. This AND circuit outputs a direct signal every time the signal is input.

In addition, each specific product removal switch Sp1. Sp2゜...
. . . consists of a self-resetting type switch, and after being turned on, it returns to the off state when the operating force is released.

On the other hand, each AND circuit 12□, 122. ...Song times...
・Flip-flop13. , 132. ·····song·
・A differentiating circuit 14 is connected between each song reset terminal.
□, 142.・・・・・・・・・・・・・・・ and inverter 15□, 15□, ・・・・・・・・・・・・・
... is connected.

When oil is applied to a specific mold, if the specific product removal switch corresponding to this section is turned on, the corresponding 70 knobs will be input to the AND circuit even if the switch is turned off. Continuing, when the corresponding timing signal is input from the matrix port 10 to the other input terminal of this AND circuit, a reject signal is output from this AND circuit, and its output is sent to the flip 70 via the above-mentioned differentiating circuit and inverter.
This serves as a reset signal for the knob and resets the 7 lip-flops, so that the reject signal output from the AND circuit only needs to be output once.

The transmission timing of the reject signal emitted by each AND circuit 120, 12□, .・The product Al 2 A22 discharged onto the river/curve conveyor 7 Reason/Turn... Each timing signal a1 from the matrix port 10 is adjusted as described above to correspond to the order of arrival at the glue jetter 8 or 8'. ．． A2, Song... Song... is controlled, but each AND circuit 121
, 122゜...... The rejection signal from Depending on the distance, it is necessary to delay the time until the product reaches the rejector 8 or 8' and give it as an activation signal to the rejector 8 or 8'.

As a delay circuit 16 for this purpose, a shift register is provided as shown in FIG.

This shift register has multistage storage elements MS12MS2
゜・・・・・・・・・・・・・・・The timing signal al consisting of MSE and output from the signal converting means 11
t A2 t・・・・・・・・・・・・・・・OR
The signal is received through the circuit 18 and used as a clock pulse.

And each section S1. S2.・・・・・・・・・
Each product A15 A22 discharged from...
・・・・・・・・・・・・Distance to glue jetter 8 L1. L2.・・・・・・・・・・・・・・・・・・
Each AND circuit 1
The reject signals from 2□, 12□, .

In addition, when the driving direction of the conveyor 7 is reversed and used, each section S, , S2.・Song...Each product A1 y A22 discharged from the song cycle...Song...The order of reaching the mountain → rejector 8' is reversed, and each product A1. A2. The distance from the discharge position to conveyor 7 to jetter 8' is also L'l I L2 in Figure 4.・・・・・・
...L/6 However, as long as both rejectors 8 and 8' are installed equidistantly on both sides of the product manufacturing department, no matter which direction they are driven, there will be a rejecter in each order. The time required for the product to reach -8 or 8' is the same, and it is sufficient to take into account the order of arrival.

In addition, depending on the type of product, the conveyance pitch is adjusted to the speed change of the conveyor 7, and for this speed change, each of the AND circuits 12 the delay time must be changed.

In order to cope with this change in delay time, each selector switch S81. SS2.・・・・・・
・Fourth: It is possible to selectively input data into two different rankings of memory elements depending on the song.

It is not provided for the AND circuit 126.

The required delay time also changes when the installation position of the rejector 8 or 8' is changed.

In order to deal with such changes, the sso is designed to allow signals to be taken out from storage elements in appropriate ranks in the delay circuit 16.

As the rejectors 8 to 8', appropriate ones such as pushers and blowers are used.

The timer 17 is used to time changes in time due to other factors common to each section.

Mechanical delay means can also be used in place of the delay circuit 16.

For example, in a double-gob bottle making machine in which each section has two product production sections, switches Sc, Sp and flip-flops 13□, 132 .・・・・・・・・・
. . . Hereinafter, one more set of circuits up to the delay circuit 16 may be added.

According to the present invention, in a product manufacturing apparatus that sequentially places and conveys products manufactured in several sections on a conveyor,
A specific product in a specific section that is obviously defective immediately after the mold is oiled can be clearly removed because only the specific product can be reliably removed using a dedicated command means for removing the specific product corresponding to each section. There is no inconvenience in which good products are removed unlike in the conventional case where specific products that are defective are removed using a command means for continuous removal, and the yield is greatly improved.

Continuous removal of products from a specific section can also be carried out by adding an extremely simple circuit.

Rejection timing for each product changes depending on the order of the manufacturing cycle between each section, conveyor drive direction, conveyor speed, etc., but such changes can be easily handled and defective products are always removed at the appropriate timing. This can be reliably accomplished by a single generator installed at a specific location.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing one embodiment, FIG. 2 is a perspective view of the timing signal generating means, FIG. 3 is a diagram showing the relationship between the firing order of each section of the bottle making machine and the bottle making cycle, and FIG. FIG. 4 is a plan view showing the relationship between the product manufacturing department, the conveyor, and the conveyor.

Claims (1)

[Scope of Claims] 1. Timing signal generating means for emitting timing signals for the number of sections in synchronization with one cycle of a product manufacturing device such as a bottle, in which products manufactured in a plurality of sections are sequentially placed on a conveyor and transferred. , signal converting means for selectively matching the timing of each signal from the means to the manufacturing cycle of each specific section, and a flip-flop corresponding to the specific section that receives an external one-shot switch input and outputs a reject command signal. an AND circuit that receives the signal from the flip-flop and the signal from the signal conversion means corresponding to the same section and outputs a reject signal; A plurality of reject signal generating means, each comprising a reset signal generating circuit for resetting a tube flop, are provided corresponding to each section, and each reject signal from the means is sent onto the conveyor of the product manufactured in the section corresponding to this signal. delay means for respectively delaying by a time corresponding to a distance from a discharge position to a predetermined paste receiving position, and a changing means for selectively changing the delay time of the paste receiving signal from each reject signal generating means in accordance with the conveyor speed. Section rejector-0 with