JPH0620897B2 - Bag feeding type automatic packaging device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a bag-filling type automatic packaging device that supplies a bag to perform opening, filling, sealing of a mouthpiece, and the like.

(Prior Art) Japanese Patent Laid-Open No. 60-110631 discloses a method for changing the size of a packaging machine.
However, this has a memory and a calculator in the control unit, and preset adjustment target values related to various container sizes are given, and it is possible to change the settings at various places by the drive unit. It

However, the selection of container size data is artificially made by the key or switch device of the control device (on the console panel surface).
The control unit is provided with an identification number belonging to the size to be adjusted via the key, and is not automated.

Therefore, it is necessary to actually measure whether the data displayed on the monitor matches the actual container size.

(Problems to be solved by the invention) When the bag size is changed, the bag size is actually measured, and the time and effort required to call and collate various data to the monitor by key operation are saved. Trouble may occur due to unevenness or adjustment error.

In particular, in recent years, the packaging content has tended to be used more frequently in high-mix low-volume production, so that the number of adjustment points and the number of adjustments of the machine increase, which significantly hinders the productivity. To make adjustments by touching or using tools,
There are also problems with safety and hygiene.

The present invention is intended to solve the above problems.

(Means for Solving the Problems) In order to achieve the above object, the present invention has the following constitutions, namely, a bag frame adapted to the size of the bag, and different bag sizes through the frame. The bag is equipped with a detection hole and a sensor that can read the bag size appropriately, and various elements of the packaging machine, that is, the opening of the bag gripping arm pair (between the gripping arm pair that matches the bag width dimension) Dimension or a value proportional to the dimension), date printing position (distance to move the printer vertically or horizontally to the designated printing position on the bag surface or a value proportional to the moving distance), filling amount (specify for each bag) Mass value or number, or volume value or numerical value proportional to mass or volume), seal temperature (temperature value or numerical value proportional to temperature), vacuum pressure (vacuum pressure value or numerical value proportional to vacuum pressure value), Table rotation speed (rotation speed value or proportional to rotation speed value A preset memory in which operation data of (numerical value) is set and stored in advance is connected to a central processing unit (CPU), the central processing unit immediately performs operation determination calculation processing based on the bag size, and outputs this to the mechanism control unit of various elements. Then, for the bag gripping arm pair, the distance between the gripping arm pair is moved from the control element via the adjustment element to the vertical and horizontal directions of the printer from the control element via the adjustment element at the date position. For the filling amount of the filling, the filling amount of the filling machine is changed from the control element to the adjustment element for the filling temperature, and the heater temperature is changed to the vacuum pressure from the control element via the adjustment element for the sealing temperature. In that case, the vacuum pressure in the vacuum container is automatically converted from the control element via the adjustment element, and the rotation speed of the table is automatically converted from the control element via the adjustment element at the input side of the reduction means. Specially configured To.

(Operation) The bag is stored in the bag frame and the size of the bag is detected. This is detected in association with it, and it is output to the central processing unit (CPU), and the operation data of the bag is retrieved from the preset memory and immediately calculated. Processed and output to the mechanism control unit, various elements such as opening of bag gripping arm pair, date printing position, filling amount of filling, seal temperature, vacuum pressure, table rotation speed, etc. are automatically converted based on operation data. Is activated.

(Embodiment) FIG. 1 is an overall perspective view of a bag frame 1 for bag storage, in which a bag width W
Also, the side plates 2 and 3 are appropriately movable in the X direction or the Y direction according to the bag length L, and the detection holes 4 and 4'are formed in the hem of each side plate and fixed thereto. Sensors 5 and 5'are provided at the positions, the bag size is read in relation to both, and is output to the central processing unit (CPU). In the apparatus, however, operation data for various bag sizes are set and stored in advance and output to various elements including control elements and adjusting elements described below.

Fig. 2 is a functional block diagram of the device of the present invention. Fig. 3 is a schematic diagram of the entire device of the present invention. The bag frame 1 is arranged at a predetermined position of the packaging machine 6 and the bag size is adjusted by inserting an adjustment start switch. Is detected and the bag size read is the central processing unit (CPU)
7, the operation data of the bag is fetched from the preset memory 8, the arithmetic processing is performed, and various elements are operated based on the operation data.

In the present invention, in order to store the operation data in the preset memory 8, the operation data for each bag size is input by the input device 9 so that the operation data is sequentially stored in the preset memory 8. Is a control element for conversion adjustment when the bag size of the packaging machine is changed, means at multiple locations equipped with adjustment elements (bag gripping arm pair M ₁ , print position M ₂ , filling amount M ₃ , filling temperature) M ₄ , vacuum pressure M ₅ , table rotation speed M _6, etc.), and these means are appropriately changed depending on the model and function.

The outline of each of the above means will be described below.

The opening degree M _{1 of the} pair of bag gripping arms is incorporated in the main body of the rotary table, and the opening degree of the pair of arms for gripping and transporting the packaging bag 10 is changed according to the bag width W.

Date printing device M ₂ Date printing is performed at a predetermined position on the packaging bag 10. All the printing positions specified by the bag size are driven horizontally and vertically in a guide support structure and a movement drive mechanism, for example, a lead screw screw. A motor is provided for each and driven by a control signal having directivity proportional to the moving distance.

Filling quantity of filling material M _{3 The} filling content is controlled corresponding to the packaging bag 10, and the filling material is a simple substance such as gas, liquid, viscous substance, powder or solid, or a mixture of two or more thereof. It is the body.

In general, as the gas, an inert gas is often replaced with air between the bags, but as an example, the ejection pressure is kept constant and the time is controlled by a timer. In this case, the time set value of the timer can be automatically converted by the central processing unit of the present invention. Further, in the case of powder or solid, an automatic weighing machine is generally used as an example, and automatic conversion can be performed by the central processing unit of the present invention instead of the quantity setting means.

Sealing temperature M ₄ Controls the heating amount of the heater when using a heat-fusible film bag.

As a specific example, a temperature controller having a communication function is commercially available, and the temperature set value can be automatically converted by the central processing unit of the present invention.

Vacuum pressure M _{5 When} performing vacuum packaging, control the vacuum pressure in the vacuum chamber according to the packaging bag.

Table rotation speed M _{6 The} packaging capacity is controlled according to the packaging bag.

In the above embodiment, the bag frame 1 can automatically read the bag size, and the side sales 2, 3 according to the bag width W and the bag length L are now performed.
When is moved, the detection holes 4 provided at the hem portions of the side plates 2 and 3,
4'is a fixed sensor a, b, c, d ...
Corresponding to a ', b', c ', d' ..., the corresponding bag size is automatically read, and the conversion command of various elements is automatically issued by this, and this will be described as a specific example. On the other hand, as the bag frame 1'shown in FIG. 4, an appropriate kind of one having an integral structure adapted to various bag sizes (bag width W, bag length L) is prepared, and the bag is stored in one of the bag frames at the supply point. The fixed sensor a whose detection hole 4 at the bottom of the side plate 2 that has been set is at the lower position,
The bag size is automatically read in a relationship that corresponds to b, c, d, ... And conversion commands for various elements are automatically issued. Is.

(Effects of the Invention) As described above, the present invention uses the bag frames 1 and 1'as a means for directly reading different bag sizes, and uses this as a bag feeding base near the rotary table (see FIG. 3). Reasonable and good workability.

Moreover, only by setting the bags in the bag frames 1 and 1 ', the operation data corresponding to the bag size is output from the preset memory,
Since the above-mentioned elements of the packaging device are automatically controlled,
Eliminates the time complexity of conventional manual work, eliminates troubles due to uneven adjustment settings and adjustment errors, and contributes to improving productivity and achieving uniform packaging bags of high quality. It is great. In the drawings of this embodiment, A is a bag supplying process, B is a printing process, C is a bag opening process, D is a filling process, E is a bag mouth closing process, F and G are heat sealing processes, and H is a cooling and discharging process.

[Brief description of drawings]

1 is an overall perspective view of a bag storage bag frame used in the device of the present invention, FIG. 2 is a functional block diagram of the device of the present invention, FIG. 3 is a schematic diagram of the entire device of the present invention, and FIG. It is a bag frame of another example. 1, 1 '... Bag frame 2, 3 ... Side plate 4, 4' ... Detection hole 5, 5 "... Sensor 6 ... Packaging machine, 7 ... Central processing unit 8 ... Preset memory, 9: Input device 10: Packaging bag

Claims (1)

[Claims] 1. A bag frame adapted to the size of the bag, a detection hole and a sensor capable of reading the bag size corresponding to the size of the different bag through the frame are provided, and different bag sizes are provided. Various elements of the packaging machine, that is, the opening of the bag gripping arm pair (the size between the gripping arm pairs that matches the bag width dimension or a value proportional to the size), the date printing position (the printer is placed vertically at the designated printing position on the bag surface). The distance to move laterally or a value proportional to the moving distance), the filling amount of the packing (mass value specified for each bag, or the number, or volume value or numerical value proportional to mass or volume), seal temperature (temperature value) Or preset value that stores and stores operation data such as vacuum pressure (vacuum pressure value or numerical value proportional to vacuum pressure value), table rotation speed (rotation speed value or numerical value proportional to rotation speed value), etc. Memory as central processing unit (CPU) Then, the central processing unit immediately performs operation determination calculation processing from the bag size described above and outputs this to the mechanism control unit of various elements, and for the bag gripping arm pair, grips from the control element via the adjustment element. For the arm-to-arm dimension, the distance from the control element to the vertical and horizontal directions of the printer via the adjustment element at the date position, and the distance from the control element via the adjustment element for the filling amount of the filling material. The table shows the filling amount of the machine, the temperature of the heater from the control element to the adjustment element for the seal temperature, and the vacuum pressure in the vacuum container from the control element to the adjustment element for the vacuum pressure. With respect to the rotation speed, the rotation speed is automatically converted at the input side of the speed reduction means from the control element via the adjustment element.