JPH0663830A - Mouthpiece insertion device - Google Patents

Abstract

PURPOSE:To prevent mouthpiece misinsertion by detecting misalignment by a means other than electricity conduction tests in mouthpiece insertion device. CONSTITUTION:A mouthpiece insertion device comprises a base section 40 held by a drive member 3, a holding section 41 to hold a mouthpiece 7 back and forth movably held by the base section 40 in parallel with the moving direction of the drive member, a first sensor 12 to detect a specified position comprising the head of the mouthpiece 7 inserted into the head of a hose 6, and a second sensor 44 to detect that the holding section 41 relatively moved rearward in relation to the base section 40 and is constituted in such a way that when the second sensor 44 performs the specified detection prior to the specified detection by the first sensor 12, a controller stops the drive member 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mouthpiece insertion device used for inserting a mouthpiece into a hose, and more particularly to a mouthpiece insertion device capable of detecting misalignment between the mouthpiece and the hose to prevent insertion failure. .

[0002]

2. Description of the Related Art For example, in manufacturing a fuel hose for an automobile, when a mouthpiece is inserted into a nylon fuel hose, the fuel hose has a small elasticity and is difficult to insert manually. However, when the insertion is performed by a machine, it is necessary to take measures against misalignment between the mouthpiece and the hose.

Therefore, in the conventional mouthpiece insertion device, the contact between the metal collar previously mounted on the fuel hose and the metal mouthpiece is detected by inspecting the electrical continuity, and when the electrical continuity occurs, the core is misaligned. It is considered that there is such a situation, and the drive of the device is stopped to prevent the occurrence of defective insertion.

[0004]

However, in order to carry out the continuity test, it is limited to the case where the conductive substances are brought into contact with each other, and it has not been possible to cope with the recent resinification of parts. The present invention has been made in view of such circumstances, and an object thereof is to prevent defective insertion in a mouthpiece insertion device by detecting misalignment by means other than a continuity test.

[0005]

A mouthpiece insertion device of the present invention which solves the above-mentioned problems is a hose clamp member for holding a hose, a mouthpiece holding member for holding a mouthpiece, and a mouthpiece holding member close to the hose clamp member. A drive member that drives in the direction, and a control device that controls the drive of the drive member,
A mouthpiece insertion device for inserting a mouthpiece held by a mouthpiece holding member into a hose held by a hose clamp member by driving a drive member, wherein the mouthpiece holding member is a base portion held by the drive member and a movement of the drive member. A holder that is held by the base so as to be movable back and forth in parallel with the direction and holds the mouthpiece, a first sensor that detects when the tip of the mouthpiece is at a predetermined position inserted into the tip of the hose, and the holder is the base portion. A second sensor for detecting relative movement to the rear with respect to the second sensor, and the control device is configured to stop the drive member when the detection of the second sensor occurs before the detection of the first sensor. Is characterized by.

[0006]

In the mouthpiece inserting device of the present invention, the hose is first held by the hose clamp member and the mouthpiece is held by the holding portion of the mouthpiece holding member. And drive the drive member,
Bring the tip of the base close to the hose. If the cap and the hose are misaligned at this time, the tip end surface of the cap comes into contact with the hose tip surface, and the further driving of the driving member causes the cap to receive a force from the hose in a direction opposite to the driving direction of the driving member. The force causes the holding portion to move rearward relative to the base portion,
The sensor detects it. Then, the control device receives the detection signal of the second sensor and stops the driving member, which prevents the insertion failure.

Here, even when the base is inserted properly without any misalignment, the base receives a force in the direction opposite to the driving direction of the drive member from the hose due to the resistance when the base is inserted into the hose. Therefore, the holding portion also tries to relatively move backward due to the force. However, since the device of the present invention has the first sensor for detecting that the tip of the mouthpiece is at the predetermined position inserted in the tip of the hose, the insertion resistance of the first sensor is small when the sensor is properly inserted. Generate a detection signal before it occurs. Therefore, when the signal from the first sensor is output before the signal from the second sensor, the control device determines that the signal has been properly inserted, and continues driving the driving member. Then, it is determined that the misalignment occurs only when the signal from the second sensor is output before the signal from the first sensor, and the above control is performed.

As described above, since the holding portion is moved by the reaction force from the hose after the mouthpiece is in contact with the hose, if the holding members are rigid enough not to buffer the reaction force. The device of the invention can be used.

[0009]

EXAMPLES The present invention will be specifically described below with reference to examples. Figure 1
FIG. 1 shows an overall configuration diagram of a mouthpiece insertion device of one embodiment of the present invention. This ferrule insertion device includes a base 1, a hose clamp member 2 fixed to the base 1, a drive member 3 slidably held on the base 1, and a ferrule provided above the drive member 3. The holding member 4 and a controller (not shown) are mainly included.

The hose clamp member 2 is composed of a hose clamp 20 that is vertically divided and a clamp cylinder 21 that opens and closes the hose clamp 20.
Is clamped and fixed by the hose clamp 20. At this time, the axial direction of the hose 6 is horizontal. Drive member 3
Is driven by a drive cylinder 10 fixed to the base 1, guided by a rail 11 provided on the base 1, and horizontally movable in a direction approaching the hose clamp 2 and a direction moving away from the hose clamp 2. There is. Further, the base 1 is provided with a limit switch 12 as a first sensor for detecting that the driving member 3 has moved to a predetermined position.

The drive member 3 has a known centering mechanism 30.
The rod-shaped base portion 40 extending from the mouthpiece holding member 4 is held by the aligning mechanism 30 so that the position can be adjusted in the vertical and horizontal directions. The base 40 is fixed at a predetermined position by the holding and fixing device 31 provided on the drive member 3. The holding and fixing device 31 has a mechanism in which a pin (not shown) provided at the tip is locked and fixed to the base portion 40 by the forward drive of the fixing cylinder 32.

The ferrule holding member 4 is composed of a base portion 40 held by the aligning mechanism 30 and a holding portion 41 held by a bearing 42 on the upper portion of the base portion 40 so as to be horizontally movable. The base 7 is placed and held on. An air spring 43 composed of an air cylinder is connected to the holding portion 41, and is biased forward (in a direction toward the hose clamp member 2) by a predetermined force. A proximity switch 44 as a second sensor is provided on the base portion 40, and when the holding portion 41 moves rearward relative to the base portion 40 against the force of the air spring 43, a rod-shaped portion extending from the holding portion 41. It is detected that 45 has approached.

The control device (not shown) is composed of a digital circuit and controls the drive of the drive cylinder 10 based on the signals input from the limit switch 12 and the proximity switch 44. The operation of the mouthpiece insertion device of the present embodiment configured as described above will be described below. First, as shown in FIG. 1, the hose 6 and the base 7 are held by the hose clamp member 2 and the base holding member 4, respectively. The end of the hose 6
A diameter-expanded portion 60 is formed in a funnel shape to facilitate insertion of the base 7.

When the drive cylinder 10 is driven, the drive member 3 is guided by the rail 11 and moves forward in the direction approaching the hose clamp member 2. As a result, as shown in FIG.
Inserted in. At that time, the limit switch 12 is actuated, the signal is input to the control device, and the control device determines that the misalignment has not occurred, and continues to drive the drive cylinder 10. Further, the biasing force of the air spring 43 becomes zero, and the holding portion 41 is pressed by the reaction force from the hose 6 and moves rearward relative to the base portion 40. Then, after the proximity switch 44 detects the proximity of the rod portion 45, the drive member 3 is further driven.

At this time, the centering mechanism 30 adjusts a slight misalignment and the holding and fixing device 31 fixes the base portion 40, and then the drive member 3 is further advanced so that the mouthpiece 7 is press-fitted into the hose 6. The hose clamp member 2 is provided with a sensor (not shown) for detecting relative movement of the hose 6 during press fitting. If the hose 6 and the mouthpiece 7 are misaligned with each other, the tip of the mouthpiece 7 and the tip of the hose 6 come into contact with each other as shown in FIG. 3, and the holding portion 41 is pushed by the pressure from the hose 6 as shown in FIG. It moves relative to the base 40 rearward.
Then, before the limit switch 12 outputs the detection signal, the proximity switch 44 detects the relative movement of the base portion 40 and the holding portion 41 and sends the signal to the control device.

Then, the control device determines that misalignment has occurred, stops driving the drive cylinder 10, and
It drives alarm means such as flashing alarm lamp or generating alarm sound. Thereby, the operator knows that the misalignment has occurred, corrects the state of the stopped device, and newly drives the device. Therefore, according to the mouthpiece insertion device of the present embodiment, since the core is not press-fitted in a misaligned state, defective insertion can be reliably prevented and loss of parts can be reduced. Further, since the continuity test is not used, it can also be used for inserting non-metallic parts.

[0017]

That is, according to the mouthpiece insertion device of the present invention, since the detection by the continuity test is not used, the misalignment can be detected even when the non-conductive substances are inserted, and the defective insertion is caused. Can be surely prevented.

[Brief description of drawings]

FIG. 1 is a front view showing a partial cross section of a mouthpiece insertion device according to an embodiment of the present invention.

2 is a front view of the device of FIG. 1 shown in a normally inserted state.

FIG. 3 is a front view of the device of FIG. 1 shown with misalignment.

FIG. 4 is a front view of a main part of the apparatus shown in FIG. 1 in a state where misalignment occurs.

[Explanation of symbols]

1: Base 2: Hose clamp member
3: Drive member 4: Base holding member 6: Hose
7: Base 12: Limit switch (first sensor) 4
0: Base 41: Holding part 44: Proximity switch (second sensor)

Claims (1)

[Claims] 1. A hose clamp member for holding a hose, a mouthpiece holding member for holding a mouthpiece, a drive member for driving the mouthpiece holding member in a direction close to the hose clamp member, and control of driving of the drive member. A mouthpiece insertion device configured to insert the mouthpiece held by the mouthpiece holding member into the hose held by the hose clamp member by driving the drive member, wherein the mouthpiece holding member is the drive device. A base part held by the member, a holding part held by the base part so as to be movable back and forth in parallel with the moving direction of the driving member, and holding the mouthpiece, and a tip of the mouthpiece is inserted into the tip of the hose. A first sensor that detects that the position has been reached, and a second sensor that detects that the holding portion has moved rearward relative to the base portion, and the detection of the second sensor is performed by the first sensor. Detect Mouthpiece insertion device the control device when generated earlier, characterized in that it is configured to stop the driving member.