JPH081782A - Process display panel for butt fusion - Google Patents

Abstract

(57) [Summary] [Objective] Of the various processes of butt fusion, in which plastic pipes are butted against each other, the pushing force, time, and process progress in each process from initial power detection to completion Provide a process display panel that allows the details of the process such as the situation to be grasped at a glance. [Configuration] After setting the heater on the panel 11, the process of detecting the initial power required to push and move the plastic pipe in the stationary state, the process of pressing and melting the end face of the plastic pipe against the heater to release the pushing force, The step of heating and holding the pressing force to 0, the step of retracting the heater 9, the step of crimping the melted plastic pipe end faces with a constant pressing force, and the cooling step are displayed in a time series pattern with the pressing force, and each step is displayed. The pushing force can be grasped according to the level and the length of time required, and the indicator lamp 12 is arranged in each process, and the progress of the process can be grasped by turning on the indicator lamp 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a butt fusion machine for chamfering a pipe end face of a plastic pipe by a chamfering machine, heating and melting it by a heater, and then abutting the plastic pipes together for fusion. It relates to a panel displaying the steps of.

[0002]

2. Description of the Related Art Butt fusion of a plastic tube is usually performed as follows. First, as shown in FIG. 1, a chamfering machine 4 is attached to a movable table 3 slidably attached to a guide rod 2 installed on a frame 1, and then a fixed clamp 5 and a guide rod 2 are slidable. After the plastic pipes 7a and 7b are clamped to the supported movable clamp 6 respectively, the air cylinder 8 is operated to move the movable clamp 6 forward together with the plastic pipe 7b, and the chamfering machine 4 is pushed in to end both plastic pipe end faces. Then, the chamfering machine 4 is sandwiched by a constant pressing force to perform chamfering. Next, remove the chamfering machine and move the movable table 3
After the heater 9 is attached to the air cylinder 8, the initial power required to push and move the stationary plastic pipe 7b is applied to the air cylinder 8.
It is detected by reading the pressure of the air supplied to
After that, the movable clamp 6 is pushed again by the operation of the air cylinder 8 to press the pipe end surface of the plastic pipe 7b clamped by the clamp 6 against the heater 9, and the heater is sandwiched by both plastic pipe end faces with a constant pressing force.
The end face of the tube is heated and melted, and then the pushing force is released to maintain the heating for a certain period of time. After that, the heater is removed, and then the air cylinder 8 is actuated again to move the movable clamp 6 forward together with the plastic pipe 7b, and the plastic pipe 7a clamped by the fixed clamp 5 is abutted with a constant pressing force and fused. There is.

Bat fusion is carried out through the above steps,
It is also known that these steps are displayed on a panel in the order of the steps, and each step of the steps is displayed in turn by a lamp arranged next to the step name.

[0004]

In the conventional panel described above, it is possible to roughly know at which stage the process is, but it is not possible to grasp the details of the process. The present invention is intended to provide a process display panel in which details of a process such as pressing force and time in each process of butt fusion can be grasped at a glance.

[0005]

A process display panel according to the present invention displays, in a time series pattern, a pressing force in each process in at least the process from the detection of initial power to the end of the processes of butt fusion. In addition, each process is provided with a lighting means. According to the panel of the present invention, the lighting means of each step lights up one after another as the process progresses, and it is possible to know the current step by lighting the lighting means. Further, it is possible to grasp the length of the time required in the process from the level of the pressing force in each process and the length of the section until the pressing force maintains a constant level and the level changes.

As the lighting means, for example, a miniature electric bulb, a light emitting diode (LED) or the like can be used, and it is desirable that a large number of this lighting means be provided in each step and the lighting of the lighting means shifts as the process progresses. . This makes it possible to understand the progress of each process.

[0007]

FIG. 2 shows an embodiment of the present invention, in which the panel 11 is provided with each step from the detection of the initial power to the end, that is, the movable table 3 shown in FIG. After mounting, the air having a predetermined pressure is momentarily introduced into the air cylinder 8 to detect the initial power by reading the pressure of the air cylinder 8 when the movable clamp moves and stops. After the initial power is detected, the air cylinder 8 is controlled to push the movable clamp 6 so as to apply a constant pressing force required for heating and melting to the detected initial power, and the plastic is clamped to the movable clamp 6. The step of pressing the heater 9 at the tube end surface of the tube 7b and sandwiching the heater 9 between both plastic tube tube end surfaces to perform heating and melting, and after heating and melting for a certain period of time, the pressing force is released and the pressing force is set to 0. The pipe end face in contact with the heater 9 at state,
Step of performing heating and holding, after heating and holding, the movable clamp 6 is retracted together with the plastic tube 7b, and then a heater removing step of retracting the heater to a position that does not disturb the heater, and after removing the heater, a constant pushing force is applied to the initial power. The movable cylinder 6 is pushed again by controlling the air cylinder 8 so that the fixed force is applied, and the melted end of the plastic pipe 7b clamped by the movable clamp 6 is melted by the plastic clamp 7a clamped by the fixed clamp 5. The pressing process of pressing and crimping on the pipe end surface, the process of pressing for a certain period of time, releasing the pressing force, and then cooling for a certain period of time in that state, a pattern is displayed in time series with the pressing force, and in each process The pushing force can be grasped by the level and the length of time required for each process. Then, in each process line, an LED or a display lamp 1 such as a miniature bulb is used.
2 are arranged, and the display lamp 12 is sequentially turned on as the process progresses by the output from the control device that automatically controls each process.

The panel 11 also has a chamfering machine 4 on which a movable table 3 is mounted.
The indicator lamp 14 lights up when the chamfering is possible, and the indicator lamp 14 lights up when the chamfering is possible and the heater 9 is attached to the movable table 3 and is set so that the above series of steps can be performed. 15. Indicator lamp 1 that lights up until the temperature of the heater 9 reaches the set temperature range, and turns off when it reaches
6 is arranged beside the above-mentioned process display 13 and the process display 13
A button for setting the temperature of the heater 9, a set temperature set by the button and a temperature display unit 17 displaying the measured temperature, and a pressure display for displaying the air pressure in the air cylinder 8 are provided under A display unit 18, a display unit 19 for displaying the outside air temperature or the remaining time of each process, and a push button 21 for retracting the heater 9 are arranged. Above the process display, a push button 23 for selecting the temperature and heating time of the heater according to the size of the tube, and a push button 24 for selecting the heating condition according to the outside air temperature are arranged.

Next to the process display 13, the power is turned on.
An OFF button 26, a decompression button 27 for adjusting the pushing force at the time of chamfering, a forward and pressure increasing button 28, a retreat button 29 for retreating the movable clamp at the end of chamfering, and a fusion start button 30 for starting the above-mentioned process. Each is arranged. In the above-described embodiment, the remaining time of each process is displayed by the display unit 19. However, a display lamp is provided in parallel for each process display process, and the lights are sequentially turned on as the process progresses. You may As a result, it is possible to understand the process at the present time and the stage of the process at the present time.

[0010]

According to the panel of the present invention, the pressing force in each process from the detection of the initial power to the end of the process, the length of the required time, and the lighting of the lighting means at a glance the progress of the process. It is possible to grasp, and it becomes easy for the worker to understand and master the work content.

Further, if a large number of lighting means are provided in each process and the lighting shifts as the process progresses, the progress in the process can be grasped at a glance.

[Brief description of drawings]

FIG. 1 is a front view of a bat fusion machine.

FIG. 2 is a front view of a panel showing a butt fusion process.

[Explanation of symbols]

3 ... Movable base 4 ... Chamfering machine 5 ... Fixed clamp 6 ... Movable clamp 7a, 7b ... Plastic tube 8 ... Air cylinder 9 ... Heater 11 ... Panel 12 ... Display lamp 13 ... Control device 14, 15, 16 ... Display lamp 21, 23,
24 ... push button 26 ... ON-OFF button 27 ... depressurization button 28 ... pressurization button 29 ... backward button 30 ... fusion start button

 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 391063190 Kyoyo Giken Co., Ltd. 2-15-1, Yanagizaki, Kawaguchi City, Saitama Prefecture (72) Tetsuo Ishikawa 4-1-2, Hiranocho, Chuo-ku, Osaka Osaka Gas (72) Inventor Takahiro Tanaka 4-1-2 Hirano-cho, Chuo-ku, Osaka Osaka Gas Co., Ltd. (72) Inventor Takayuki Handa 6-1-2 Waki, Waki-cho, Yamaguchi Prefecture Mitsui Oil Co., Ltd. Chemical Industry Co., Ltd. (72) Inventor Hidemitsu Yamada 17 Kanda Higashi Matsushita-cho, Chiyoda-ku, Tokyo First Building Asahi Enterprise Co., Ltd. (72) Inventor Kiyoshi Aihara 2-15-1, Yanagizaki, Kawaguchi City, Saitama Hiroyo Giken Co., Ltd.

Claims (2)

[Claims] 1. A chamfering machine is used to chamfer the end face of a plastic pipe, and then the initial power required to push and move the plastic pipe in a stationary state is detected, followed by heating and melting and holding by a heater, and then the plastic. In the butt fusion where the pipes are butted against each other, among the above-mentioned steps, at least the pressing force in each step in the steps from the detection of the initial power to the end is displayed in a time series pattern, and each step is performed. A process display panel, characterized in that each is provided with a lighting means. 2. The process display panel according to claim 1, wherein a plurality of lighting means are provided for each process.