JPS636239Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is a cloth press that adheres two pieces of cloth by heating and pressurizing them to melt the adhesive applied to one cloth. Regarding machines.

[Prior art]

Conventional bonding cloth press machines, for example,
- Like the one described in Publication No. 55971, the cloth is fed by a pair of endless belts that always move in one direction in sliding contact with the curved surface of the trowel, and a pressure roller that presses the cloth against the surface of the trowel. They worked together to heat and pressurize the cloth as it passed over the trowel.

[Problem that the invention attempts to solve]

However, with this conventional method, even if the material to be processed (hereinafter referred to as "cloth") is set accurately on the table, the material may shift, curl up, or wrinkle the moment it is placed on the running belt. As a result, the finish of the product deteriorates, making it unsuitable for high-quality processing.Also, in the case of thin materials, it takes time and effort to correct the fabric after it is placed on the belt, resulting in a high rate of failure. .

[Means for solving problems]

This invention solves the above problems by making it possible to select between two processing methods, continuous feeding and intermittent feeding, depending on the type of fabric and the degree of finishing required. The pressurizing force of the iron body is made weaker than before, and the stopping position of the belt joint is set outside the iron body during intermittent operation of the belt.

〔Example〕

As shown in Fig. 1, the machine frame 1 is connected to a motor 2 installed at the bottom of the machine frame 1 via a belt 3.
A feed roller 5 rotates around a shaft 4 supported horizontally on the machine, and shafts 6 and 7 fixed to the machine frame parallel to the shaft 4.
A lower feed belt 10 is endlessly stretched around feed rollers 8 and 9 that are rotatably supported by the lower feed belt 10, and the lower feed belt 10 has an arm 11 that is rotatably attached to the free end of an arm 11 that is swingable on the machine frame 1. The elastic force of a spring 13 presses the floating roller 12 to give an appropriate tension, and a rotatable nip roller 15 is attached to the free end of an arm 14 swingably supported on the machine frame 1 by a spring 16.
The elastic force causes the ball to bounce toward the feed roller 5,
When the nip roller 15 contacts the feed roller 5 via the lower feed belt 10, the feed roller 5
The winding angle of the lower feed belt 10 relative to the belt should be maximized.

A feed roller 20 rotates around a shaft 17 that is linked to the motor 2 and supported horizontally on the machine frame 1 above the lower feed belt 10, and shafts 18 and 19 that are fixed to the machine frame 1 parallel to the shaft 17 rotate. An upper feed belt 23 extends endlessly around the feed rollers 21 and 22 which are movably supported, and the upper feed belt 23 has a freely rotatable arm 24 attached to the free end of an arm 24 that can swing on the machine frame 1. Each time the roller 25 is pressed by the elastic force of the spring 26 to give an appropriate tension, a rotatable nip roller 28 is sent to the free end of the swingable arm 27 on the machine frame 1 by the air cylinder CY ₁ . roller 2
0, and when the nip roller 28 contacts the feed roller 20 via the upper feed belt 23, the upper feed belt 2 against the feed roller 20
The winding angle θ of 3 is made to be the maximum.

Both feed belts 23 and 10 are arranged in relation to each other so that the fabric can be sandwiched between the lower surface of the upper feed belt 23 and the upper surface of the lower feed belt 10 and transferred to the left in FIG. An upper trowel 29 for constant heating is fixedly disposed inside the trowel 29, and a lower trowel 30 is disposed inside the lower feed belt 10 opposite to the upper trowel 29 so as to be movable up and down via an air spring 31.

A pair of pressure rollers 32, 33 are provided ahead of both trowels 29, 30 in the cloth transport direction, sandwiching both feed belts 23, 10, and one pressure roller 32 is centered on a fixed axis line 1 with respect to the machine frame 1. The other pressure roller 32 is rotatably supported at the free end of an arm 34 which is swingable about the shaft 17 via an air cylinder _CY2 .

Both feed belts 10 and 23 have a length that can be divided into equal parts by a distance slightly longer than the length of the facing surfaces of both crucibles 29 and 30 in the direction of movement (in the embodiment, the upper feed belt 10 is divided into three equal parts, The lower feed belt 10 is divided into five equal parts (the lower feed belt 23 is divided into five equal parts), and is extended further forward than the upper feed belt 23 in its movement direction.
A cloth input section W is opened at the top. Lower feed belt 10
A small hole (signal body) P is formed on one side thereof at the above-mentioned equal intervals, and a light emitter 42 is placed on one side and a light receiver 43 is placed on the other side, sandwiching the movement path of the small hole. Install the arranged detection means on the machine frame 1,
The positions of the small holes P with respect to the joints are set so that the joints of the feed belt 10 are not located between the two iron bodies 29 and 30 when each of the small holes P faces the detection means.

Furthermore, if the position of the small hole P is misaligned with respect to the seam and the joint is located between the iron bodies 29 and 30 when the feed belt 10 is stopped, the detection means is moved and locked in the moving direction of the feed belt 10. This allows for adjustments.

Regarding the air circuit diagram in Fig. 2, VL ₁ , VL ₂ are solenoid valves whose valve states are switched from the initial state shown in the diagram by energizing the coil, and VL ₃ to _{VL 5} are valve states that are changed by manual operation. This is a manual valve that can be switched from the . 35 to 39 are solenoid valves VL ₁ , 39 that can appropriately reduce the pressure of air from an air supply source 40 such as a compressor;
This pressure reducing valve can be supplied to VL ₃ and the manual valves VL ₃ to _{VL 5} , and the set pressure of the pressure reducing valve 36 is set to be weaker than the set pressure of the pressure reducing valve 35 and stronger than the set pressure of the pressure reducing valve 37. 41 is a pusher relay that can pass a large volume of air to the same pressure as a small volume of air supplied to the pilot; in the embodiment, it is supplied when air is supplied from the solenoid valve VL ₁ . The arrangement is such that air from the source 40 is reduced in pressure to be equal to the air of the solenoid valve VL ₁ and supplied to the air spring 31 .

In the electrical circuit diagram shown in FIG. 3, SW ₁ and SW ₂ are switches that can be opened and closed manually, and when one of the contacts is closed, the other one is opened.

The start switch FSW is always open and can be opened manually. Limitton Itsuchi LSW ₁
is always open, and is closed when the lower iron 30 rises from a preparation position, which will be described later. Limit switch LSW ₂ is always open and lower trowel 3
0 comes into contact with the upper iron via both feed belts 10 and 23, thereby closing. _R1 to _R5 are relays
R _1-1 to R _5-1 are contacts with corresponding numbers. Similarly, T is a timer and T _-1 is its contact. Note that the normally open contact R _2-1 of relay R ₂ is a delay relay.

This invention has the above structure, and its operation will be explained next. In the initial state shown in FIG. 2, the lower iron 30, pressure roller 33, and nip roller 28 are in the first position.
It is located at the position indicated by the chain double-dashed line in the figure. Then, when the manual valve VL ₄ is switched manually from this state, the operating rod 44 of the air cylinder CY ₁ is lowered at the pressure set by the pressure reducing valve 38, and the nip roller 28 is also lowered, so adjust the pressure reducing valve 38 appropriately. Accordingly, the winding angle θ and the contact pressure of the upper feed belt 23 with respect to the feed roller 20 change. Therefore, by adjusting the pressure reducing valve 38, the displacement of the upper and lower feed belts 23 and 10 that occurs during operation, which will be described later, can be eliminated.

Further, when the manual valve VL ₅ is manually switched, the operating rod 45 of the air cylinder CV ₂ is lowered, whereby the pressure roller 33 presses the pressure roller 32 with the pressure set by the pressure reducing valve 39.

Next, when the manual valve VL ₃ is switched manually, the air at the pressure set by the pressure reducing valve 37 is transferred to the solenoid valves VL ₂ and VL _1.
Since the air from the supply source 40 is reduced to the set pressure of the pressure reducing valve 37 and supplied to the air spring 31, the lower iron 30 is moved to the ready position where it approaches the lower feed belt 10. As it rises, this closes limit switch LSW ₁ .

Incidentally, when the lower trowel 30 is lowered to the lowest position indicated by the two-dot chain line in FIG. 1, a sufficient maintenance space for the lower feed belt 10 is ensured.

As mentioned above, from the state shown in Fig. 2, the manual valve VL ₃ ~
When VL ₅ is switched and switch SW ₁ is then closed, solenoid valve VL ₂ is energized, and air at the pressure set by pressure reducing valve 36 is supplied from supply source 40 to air spring 31 via booster relay 41. Lower trowel 30
moves upward from the preparation position to a slight pressure position, and in cooperation with the upper trowel 29 lightly pinches the feed belts 23, 10.

At the same time, the motor 2 starts rotating and passes through the feed rollers 5, 20 to the feed belts 23, 1.
Move 0 in the direction of the arrow.

Therefore, when the outer fabric and the interlining coated with a well-known adhesive are placed one on top of the other on the lower feed belt 10 in front of the feed roller 21, these fabrics are placed on the lower feed belt 10 in front of the feed roller 21.
It is sandwiched between opposing contact portions 3 and 10 and transferred to the left in FIG. Then, the cloth is heated while passing through both trowels 29 and 30, and immediately after the adhesive melts, it is pressed between both pressure rollers 32 and 33, so that the cloths are bonded together.

Next, open switch SW ₁ and close switch SW ₂ , relay R ₄ will turn on, normally closed contact R _4-1 will open, and the solenoid valve will open.
Since VL ₂ is demagnetized, a pressure reducing valve 37 is installed in the air spring 31.
Air at the pressure set in is supplied from the supply source, whereby the lower iron 30 is lowered from the slight pressure position to the preparation position, and the motor 2 is stopped. When the start switch FSW is closed from this state, the relay _R1 is turned on and its normally open contact _R1-2 is closed, so the motor 2 rotates and moves both feed belts 23 and 10 in the direction of the arrow in FIG. At the same time, the normally open contact
_R1-1 closes, but due to the movement of the lower feed belt 10, there is a time delay until the small hole (signal body) P is removed from the position facing the pair of light emitters 42 and light receivers 43 (detection means), and the delay relay is activated. Since R ₂ is turned on and its normally open contact R _2-1 is closed, the lower feed belt 10 further moves in the direction of the arrow. When the next small hole P reaches the position facing the detection means, relay R ₅ turns on and closes its normally open contact R _5-1 , so relay R ₃ turns on and opens its normally closed contact R _3-1 . to stop motor 2. As a result, the cloth placed on the lower feed belt 10 in front of the feed roller 18 is transferred to both trowels 2.
It will be transferred and stopped between 9 and 30. At the same time, the normally open contact R _3-2 closes and the solenoid valve VL ₁ is energized, which turns on the timer T and then opens the normally closed contact T _T-1 after a predetermined period of time has passed.
Since relay R ₁ is turned off and the self-holding of contact R _1-1 is released, relays R ₂ and R ₃ are turned off and solenoid valve VL ₁ is demagnetized, the air spring 31 receives the pressure set by the pressure reducing valve 37. Air is supplied from the supply source 40, so that the lower iron 30 is lowered to the ready position and returns to its initial position. The adhesive is melted by heating during this time, and the cloth is bonded by pressure. Note that while the two feed belts 23, 10 are moving, the two trowels 29, 30 are separated from them, so that the front side of the fabric in the moving direction will not be overheated, and the lower trowel 30 will rise. The entire surface is heated evenly.

As described above, according to this invention, if the feed belt is rotated continuously, waiting time can be eliminated and processing capacity is increased, and if the feed belt is rotated intermittently with each manual operation, setting the fabric can be done easily. Because the process can be carried out accurately at the pace of the operator, high-quality products without fabric misalignment or wrinkles can be obtained.By using one machine separately for cases where high quality is required and cases where high quality is not required, materials and required quality can be obtained. It is possible to efficiently perform processing that meets the requirements.

In addition, the distance between the objects to be detected is set so that the belt seam is not located on the iron body when the intermittent feeding belt stops, so there is no possibility of leaving traces of the seam on the fabric. Finishing quality can be improved.

[Brief explanation of drawings]

Fig. 1 is a schematic side view of the fabric press, Fig. 2 is an air circuit diagram, and Fig. 3 is an electrical circuit diagram. 2...Electric means (motor), 5, 8, 9, 2
0, 21, 22...Feed roller, 10, 23...
...Feeding belt, 29,30...Front body, FSW...
First operating means (switch), SW ₁ , SW ₂ ... second operating means (switch), VL ₁ , VL ₂ ... pressurizing means (solenoid valve).

Claims (1)

[Claims for Utility Model Registration] Two sets of feed rollers 5, 6, 20, and 21 supported on the machine frame so as to be rotatable about separate and parallel fixed axes and arranged above and below, so as to be in opposing contact with each other. a pair of endless feed belts 10 and 23 that are stretched around each set of feed rollers; one electric means 2 that can be operated to rotate both feed belts in one direction; A pair of mortar bodies 2 which are arranged opposite to each other with a moving plane between them, supported on a machine frame so as to be movable relative to each other in the approaching and separating directions, and at least one of which can be heated.
9, 30, a first state in which a pair of iron bodies strongly press both feed belts, a second state in which they press weaker than that, and a third state in which the pressing force is released and the two feed belts are separated from each other. Pressurizing means that can be operated to change the state
VL ₁ , VL ₂ and second operating means SW ₁ , SW ₂ capable of two operations, and a first control circuit that puts the mortar in a second state by the first operation and continuously drives the electric means. , A detection object P is provided at each position equally divided by a distance longer than the length of the die along the moving direction along the entire circumference of one of the feed belts, and the detection object P is placed opposite to the movement path of the detection object. , detection means 42, 4 that generate a detection signal by detecting the object to be detected.
3, and a first operating means (FSW) capable of two operations, which is activated by a second operation of the second operating means, and when the first operating means is activated, the electric means is driven by the first operation. and a second control circuit that stops the electric means upon generation of a detection signal and changes the crucible from the third state to the first state for a predetermined period after stopping the electric means, and selects continuous operation of the belt. The present invention is characterized in that the clamping force of the feed belt by the crimp body is sometimes made weaker than when intermittent operation of the belt is selected, and the stopping position of the belt joint is set outside the crucible when the belt is intermittently operated. cloth press machine.