JPH06322Y2 - Automatic binding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an improvement of an automatic binding machine.

(Prior Art) Conventionally, an arch-shaped band guide frame is provided on a binding table, a heat welding cutting part is provided on the binding table, and a band feeding device capable of forward and reverse rotation is provided in the vicinity of the heat welding cutting part. After passing through the heat-welding cutting part, passing through the band guide frame of the arch part, when reaching the heat-welding cutting part again, the band tip is held and the band is pulled back to wrap the band around the thrown bundle. The band was cut by heat welding and automatically bound.

(Problems to be solved by the invention) In an automatic binding machine, when a band is fed through an arch-shaped band guide frame by a band feeder, the band guide frame runs smoothly due to an abnormality such as bending or twisting of the band tip. If it does not reach the specified position because it is caught on the way, the binding cannot be done and the binding work is stopped manually and the band is sent back to recover.This kind of failure is the major cause of failure of the automatic binding machine. Was occupied.

(Means for Solving Problems) A band retention chamber is provided in front of the binding portion, an outlet-side band feed device capable of forward and reverse rotation is provided at the outlet of the band retention chamber, and two forward and reverse-reversible inlets for the band retention chamber are provided. The band fed from the two band reels each provided with an entrance side band feeder and held in a proper position in the binding machine are appropriately guided through guide rollers, one to one entrance side band feeder and the other to the other entrance side band. The delivery device is arranged so as to reach the end of the band passage of the binding section, and an arrival detector is provided to detect that the leading end of the band has arrived. 2-3
Equipped with a retry function that repeats, if the tip of the band does not reach the specified position even after the retry function is activated,
The outlet side band feeder and the inlet side band feeder in use reversely pull out all the sent out bands, and when the pulling back is completed, the other inlet side band feeders and outlet side band feeders rotate normally. A control circuit for feeding and binding bands of other band reels was provided.

(Function) If the arrival detector does not detect the arrival of the band within a certain time after the band feeding device sends out the band, the retry function is activated, and if the tip of the band does not reach the predetermined position, the Since the band is pulled back and the other bands are fed, even if the bending or twisting of the band tip is not corrected by the retry, the binding work can be continuously performed without manually stopping the binding work.

(Example) The example shown in the following figures is shown. Reference numeral 1 is a binding machine body, and a band guide frame body 3 is erected from both sides of the binding table 2 in an arch shape.
The bundling section 4 having the above is arranged, and 5 is a heat-welding cutting section provided in the lower central portion of the bundling section 4. Reference numeral 6 denotes a band retention chamber provided below the bundling unit 4, which has a detector (not shown) for detecting the band amount therein.

Reference numerals 7 and 8 denote first and second inlet side band feeders capable of rotating in the forward and reverse directions, which are located outside the two inlets 6a and 6b of the band retention chamber 6 and are appropriately guided from the first and second band reels 9 and 10 to guide rollers 11a. The band B is provided so as to be transferred in the forward and reverse directions with respect to the band retention chamber 6 via 11b, 12a and 12b. An outlet side band feeder 13 is provided in the vicinity of the outlet of the band retention chamber 6 and in the vicinity of the heat welding cutting part 5, and is capable of forward and reverse rotation.

Reference numeral 14 denotes an arrival detector that detects that the tip of the band has reached a predetermined position of the heat-welding and cutting section 5, and detects whether or not the tip of the band B has reached a predetermined position and outputs a signal. ing.

Further, when a timer (not shown) is provided, and the arrival detector 14 detects arrival of the tip of the band B when a preset time T of the timer, which is a constant time after the exit side band feeder sends out the band, has elapsed. Is a band feeder 13
Reversely, the band B is pulled back to perform the binding work, and when the arrival of the tip of the band B is not detected when the set time T of the timer has passed, the outlet side band feeding device 13 reverses the predetermined time for a short time. After that, it rotates forward again and sends the band. It has a retry function to repeat this two to three times.

When the retry function is activated and the arrival detector still does not detect the arrival of the front end of the band, the outlet side band feeding device 13 and the inlet side band feeding device 7 are reversed and the band B in use is in use.
When the band B in use is completely pulled back, the other inlet side band feeding device 8 and the other outlet side band feeding device 13 are normally rotated to feed the band B ′ from the other bud reel 10 (not shown). A circuit is provided.

When the band B'from the band reel 10 is in use and the band is caught and cannot be corrected by activating the retry function, the outlet side band feed device 13 and the inlet side band feed device 8 are reversed and are in use. Of the band B ', and when the band B'in use is completely pulled back, the other inlet side band feeding device 7 and the other outlet side band feeding device 13 are normally rotated, and the band reel 9 whose tip is corrected by cutting or the like. A control circuit (not shown) is provided so as to send the band B of.

Then, when the band B of the band reel 9 is sent to the band holding chamber 6 by the first band feeding device 7, a certain amount of the band B is stored in the band holding chamber 6.

The band B is sent to the band guide frame 3 by the outlet side band feeder 13, but when the band B is sent out, the detector of the band retention chamber 6 causes the first band feeder 7 to move.
Rotates forward to feed the band B from the band reel 9 into the band retention chamber 6 until a predetermined amount of band is stored.

The band B is sent by the band feeder 13 on the outlet side, and when the band B passes through the band guide frame 4 and the tip of the band B reaches the predetermined position of the thermal welding cutting part 5, the arrival detector 14 detects it and the outlet side is detected. The band feeding device 13 is stopped and the tip of the band is held by a member (not shown). When a certain time T has elapsed after the outlet side band feeding device 13 starts feeding, the outlet side band feeding device 13 reverses by a timer (not shown) to pull back the band B and wind the band around the bundled object. The band is cut by heat welding and bound.

After the outlet side band feeder 13 sends out the band B, the band end is caught due to bending or twisting of the band end while the band B is passing through the passage of the band guide frame body 3 (see FIG. 2), When the arrival detector 14 detects that the tip of the band B has not arrived when the certain time T has passed, the exit side band feeding device 1 by the retry function.
3 reverses for a certain period of time and pulls back the band B to an appropriate length, and the outlet side band feeder 13 again rotates forward to feed the band B.

When the retry function is activated and the arrival detector 14 still does not detect the arrival of the front end of the band, the control circuit causes the outlet side band feeding device 13 and the entrance side band feeding device 7 to rotate in the reverse direction so that all of the band B in use is removed. When the pullback to the outside (see FIG. 3) and the pullback of the band B in use are completed, the other inlet side band feeding device 8 and the other outlet side band feeding device 13 are normally rotated and the band B ′ from the other band reel 10 is returned. (See Fig. 4) to perform binding work.

The band B of the band reel 9 that has been pulled back to the outside may be set by cutting the defective portion by cutting around the tip and setting, or by setting a new band, so that the binding work can be continuously performed.

(Effect of the invention) As described above, the present invention operates the retry function when the arrival detector does not detect the arrival of the band within a certain time after the band feeding device sends out the band, and the tip of the band reaches the predetermined position. Otherwise, the band in use is pulled back and another band is fed in. Therefore, even if the bending or twisting of the band tip is not corrected by the retry, the banding work can be continuously performed by the other band.

[Brief description of drawings]

Each of the drawings shows an embodiment of the present invention, FIG. 1 is an explanatory front view showing the arrangement of each part, and FIGS. 2 to 4 are explanatory front views showing the operation. 3 ... Band guide frame, 5 ... Heat welding cutting part, 7 ... 1st entrance side band feeder, 8 ... 2nd entrance side band feeder, 9 ... 1st band reel, 10 ... 2nd band reel, 13 ... Exit side band feeder, 14 ... Arrival detector.

Claims (1)

[Scope of utility model registration request] 1. A band retention chamber in front of the binding portion is provided, an outlet-side band feeder capable of forward and reverse rotation is provided at the outlet of the band retention chamber, and two inlet-side bands capable of forward and reverse rotation are provided at the inlet of the band retention chamber. A band is provided from each of the two band reels that are provided with a feeding device and held in a proper position in the binding machine, and one band is fed into one band feeding device on one side through a gand roller as appropriate.
On the other hand, the other is arranged so as to reach the other inlet side band feeding device, and an arrival detector for detecting that the tip of the band reaches the end of the band passage of the binding part is provided. Equipped with a retry function that rotates forward again to feed the band and repeats this two to three times. If the tip of the band does not reach the specified position even after the retry function is activated, the outlet side band feeding device and the one in use The inlet side band feeder reversely pulls out all the sent out bands, and when the pulling back is completed, the other inlet side band feeders and outlet side band feeders rotate in the forward direction to bundle the bands of other band reels. An automatic binding machine equipped with a control circuit that activates.