JP5906586B2 - Vibration isolator of loom - Google Patents

Description

  The present invention relates to a vibration isolator that absorbs vibration of a loom.

  When the loom is operated, intense vibration occurs due to the reciprocating motion of the reed frame and reed accompanying the weaving motion. The loom is usually firmly fixed to the floor surface with anchor bolts or the like, and measures are taken so as not to affect the weaving movement. As in recent years, when the operation of the loom is further accelerated, the vibration of the loom propagates through the floor surface, which may affect the outside of the loom. For this reason, the loom is supported by a vibration absorbing device using a metal spring or an air spring, and measures are taken to prevent the vibration of the loom from propagating to the floor surface.

  For example, Patent Document 1 discloses a vibration isolator for a loom that supports the loom by an air spring installed on a floor surface and prevents vibration of the loom. Specifically, the gantry on which the loom is placed is supported on the floor surface by at least three air springs. The air spring has a bellows in which a space in which pressurized air can be enclosed is formed, an upper plate and a lower plate that close the upper and lower opening ends of the bellows, and a flange formed at the upper and lower opening ends of the bellows. And a ring member fixed to the lower plate. Therefore, the vibration of the loom is absorbed by the air spring, and propagation to the floor surface is prevented.

JP-A-8-128502

  In Patent Document 1, since the vibration of the loom is absorbed by the air spring and does not propagate to the floor surface, the influence of the vibration on the outside of the loom can be prevented. However, the loom vibration isolation technology that protects the function of the loom and prevents its influence on the surrounding environment takes the form of discarding all the vibration energy generated by the loom, and the vibration energy of the loom can be effectively used. No.

  The object of the present invention is to effectively absorb the absorption of vibration energy generated by the operation of the loom and the absorbed vibration energy.

A vibration isolator for a loom having a loom mounted on a vibration isolator having a vibration absorbing device in a housing, wherein the vibration absorbing device includes at least a weight capable of free vibration and a spring supporting the weight. A vibration power generation mechanism configured to generate electric power by vibration of the weight is disposed in the casing , and in the weaving factory, the vibration power generation mechanism of each loom is set to 1 for every loom or a group of looms divided into a plurality of looms. It is the structure electrically connected to the two storage batteries .

According to the first aspect, the vibration generated by the operation of the loom is efficiently absorbed using the vibration of the weight of the vibration absorbing device, and the vibration of the loom itself is suppressed and the propagation of the vibration to the outside through the floor surface is suppressed. can do. At the same time, the vibration of the weight for absorbing the vibration can be transmitted to the vibration power generation mechanism to obtain electric power. Therefore, the vibration of the loom and the propagation of the vibration to the outside of the loom are suppressed to prevent the influence on the surrounding environment, and the electric power obtained by using the vibration of the loom is used for the electric equipment of the loom or the weaving factory. Can do. Furthermore, by collecting the electric power obtained from the many looms installed in the weaving factory, it can also be used for the electrical equipment in the weaving factory, which can contribute to energy saving in the weaving factory. .

According to a second aspect of the present invention, the vibration power generation mechanism is electrically connected to a storage battery, and the storage battery is electrically connected to a sensor disposed in the loom. According to the second aspect , since the electric power obtained by the vibration power generation mechanism can be stored in the storage battery and supplied to the sensor which is an electrical facility provided in the loom, it can contribute to energy saving of the loom.

  The invention of the present application can prevent the influence of the vibration generated by the operation of the loom on the loom and the outside of the loom, and the electric power obtained by effectively utilizing the vibration of the loom is supplied to the electric equipment of the loom or the weaving factory. It can be supplied and can greatly contribute to energy saving.

It is the schematic explaining the positional relationship of the vibration isolator stand and the loom in 1st Embodiment. It is sectional drawing explaining a vibration isolator stand. It is explanatory drawing which shows the electric power utilization form in one loom. It is explanatory drawing which shows the electric power utilization form in 2nd Embodiment.

(First embodiment)
A first embodiment will be described with reference to FIGS. In the vibration isolator of the loom shown in FIG. 1, a loom 3 having a warp opening device 1 and a reed 2 that are main vibration sources is placed on a vibration isolator base 5 installed on a floor surface 4. It is comprised by. The anti-vibration mount 5 is arranged at four locations and supports the frame of the loom 3 at four corners. In order to stably support the loom 3, it is necessary to dispose the vibration isolator 5 at at least three places, and it is also possible to install four or more vibration isolator 5 if necessary. The anti-vibration mount 5 is fixed to the loom 3 with bolts (not shown).

  The details of the vibration isolator 5 will be described with reference to FIG. Note that FIG. 2 shows one of the anti-vibration mounts 5 installed at four locations, and the structure is the same as that installed at other positions. The anti-vibration mount 5 includes a housing 6 and a vibration absorbing device 7 housed in the housing 6. The outer shape of the housing 6 is a box formed in a square shape as shown in FIG. The housing 6 is not limited to a square shape, and may be a cylindrical shape.

  The vibration absorbing device 7 includes a weight 8 disposed in a substantially central position in the housing 6 so as to be capable of free vibration, and a first air spring constituting a spring disposed between the upper surface 8 a of the weight 8 and the housing 6. 9 and a second air spring 10 constituting a spring disposed between the lower surface 8 b of the weight 8 and the housing 6. The 1st air spring 9 and the 2nd air spring 10 are comprised by the rubber bellows which formed the space in which pressurized air is enclosed.

  The first air spring 9 has an upper end fixed to the housing 6 by an upper plate 11 and a bolt 12 in order to close upper and lower opening ends (not shown) of the bellows, and a lower end is a lower plate. 13 and bolts 14 are fixed to the weight 8. Similarly, in order to close the upper and lower opening ends (not shown) of the bellows, the second air spring 10 is fixed at the upper end to the weight 8 by the upper plate 15 and the bolt 16 and the lower end is fixed. The lower plate 17 and the bolts 18 are fixed to the housing 6.

  Therefore, since the weight 8 is elastically held between the first air spring 9 and the second air spring 10, it can freely move in the vertical direction. In the weight 8, the mass of the weight 8 and the spring constants of the first air spring 9 and the second air spring 10 are appropriately selected so that the natural frequency of the weight 8 matches the frequency generated during the operation of the loom 3. Is set to In addition, the spring constant of the 1st air spring 9 and the 2nd air spring 10 is set by adjusting the quantity of the pressure air enclosed. Accordingly, when the loom 3 vibrates, the vibration is transmitted to the weight 8 through the housing 6, and the weight 8 starts to vibrate at the same natural frequency as the loom 3. Since the vibration of the weight 8 acts so that the reaction force of the weight 8 cancels the external force transmitted through the housing 6, the vibration of the loom 3 is attenuated and absorbed. The transmission of vibration to the floor surface 4 on which the anti-vibration mount 5 is installed is prevented.

  On the other hand, a vibration power generation mechanism 19 is disposed between the weight 8 and the housing 6. The vibration power generation mechanism 19 has a configuration in which piezoelectric elements 21 and 22 are attached to both surfaces on one end side of an elastic plate 20 formed in an L shape. The elastic plate 20 is arranged so that the piezoelectric elements 21 and 22 are horizontal, one end of the L shape is fixed to the upper surface 8a of the weight 8 by a bolt 23, and the other end of the L shape is fixed to the housing 6 by a bolt 24. It is fixed. Further, the piezoelectric element 21 is electrically connected to a rectifier 26 provided outside the housing 6 by a wiring 25, and the piezoelectric element 22 is electrically connected to the rectifier 26 by a wiring 27. The rectifier 26 is electrically connected to a storage battery 29 provided outside the housing 6 by a wiring 28.

  The elastic plate 20 is swung up and down with the casing 6 side as a base point by the vibration of the weight 8 that is vibrated by the vibration of the loom 3. For this reason, the piezoelectric elements 21 and 22 are repeatedly deformed in the vertical direction to generate an electromotive force. Since the loom 3 is operated at a high speed, the generated frequency is high, and the piezoelectric elements 21 and 22 have a large number of vertical deformations, so that the piezoelectric elements 21 and 22 generate a large electromotive force. Since the electromotive forces generated in the piezoelectric elements 21 and 22 have different current flows, they are rectified by the rectifier 26 and stored in the storage battery 29.

  One loom is supported by anti-vibration mounts 5 installed at four locations. Therefore, as shown in FIG. 3, the power obtained by the power generation of the vibration power generation mechanism 19 of each anti-vibration mount 5 is rectified by the rectifier 26 and then collected in one storage battery 29. To do. The electric power stored in the storage battery 29 is converted into AC power by the inverter 30, and the electric power of the sensor 31 which is an electrical facility disposed in the weft cutting detecting device, the warp cutting detecting device or the weft detecting device of the weft length measuring storage device or the like. Used as a power source.

The first embodiment described above has the following operational effects.
(1) The vibration generated by the operation of the loom 3 vibrates the weight 8 supported by the first air spring 9 and the second air spring 10. Since the natural frequency of the weight 8 is set to coincide with the frequency generated in the loom, the reaction force of the weight 8 acts in a direction to cancel the vibration of the loom 3. For this reason, the vibration of the loom 3 is efficiently absorbed by the vibration of the weight 8. Therefore, it is possible to reliably prevent the vibration of the loom 3 from propagating to the outside of the loom 3 via the respective operating parts of the loom 3, the housing 6 and the floor surface 4.
(2) Since the spring constants of the first air spring 9 and the second air spring 10 can be set by the pressurized air to be enclosed, the natural frequency of the weight 8 can be easily set.
(3) Since the vibration of the loom 3 is converted into the vibration of the weight 8 and the vibration power generation mechanism 19 including the piezoelectric elements 21 and 22 is operated using the vibration of the weight 8, it has been conventionally wasted. Vibration energy can be used effectively.
(4) Since the vibration power generation mechanism 19 includes the piezoelectric elements 21 and 22, the vibration power generation mechanism 19 can be downsized and the installation space of the loom 3 is not affected.

(Second Embodiment)
The second embodiment of FIG. 4 shows a power usage form in a weaving factory where a large number of looms are installed. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed explanations are given. Omitted.

  FIG. 4 shows a power usage form of four looms 3A, 3B, 3C, and 3D among many looms installed in the weaving factory. The looms 3A to 3D are respectively placed on four anti-vibration mounts 5A to 5D installed on the floor surface. The anti-vibration mounts 5A to 5D have the same structure as the anti-vibration mount 5 shown in the first embodiment, and include the vibration absorbing device 7 and the vibration power generation mechanism 19 shown in FIG.

  Each vibration power generation mechanism 19 disposed on the vibration isolator bases 5A to 5D is electrically connected to a common storage battery 32 via rectifiers 26A to 26D, respectively. The storage battery 32 is further electrically connected to an electrical facility 34 in the fabric factory via an inverter 33. The electrical equipment 34 can include electrical equipment disposed in each of the looms 3A, 3B, 3C, and 3D.

  In the second embodiment, the power generated by a total of 16 vibration power generation mechanisms 19 installed in the four looms 3A to 3D is collected in one storage battery 32, and used as a larger power. Can do. If a large number of looms 3 are installed in the weaving factory, the vibration power generation mechanisms 19 of all the looms 3 may be configured to store in one storage battery 32, or divided into a plurality of loom groups. However, the vibration power generation mechanism 19 of each loom may be stored in one storage battery 32 for each loom group.

  The present invention is not limited to the configuration of each of the embodiments described above, and various modifications are possible within the scope of the gist of the present invention, and can be implemented as follows.

(1) The vibration power generation mechanism 19 is not limited to the one using the piezoelectric elements 21 and 22 but can be configured using an electromagnetic induction generator or an electrostatic generator. For example, in an electromagnetic induction generator, a magnet is attached to the weight 8 side and a coil is arranged on the housing 6 side, or a rotary generator is provided on the housing 6 side. It can implement by the structure etc. which convert into and rotate a rotary generator. Moreover, in an electrostatic generator, it can implement by the structure which attached the electret electrode which carried the electric charge to the weight 8 side, and attached the counter electrode to the housing | casing 6 side.

(2) A plurality of vibration power generation mechanisms 19 may be arranged on one vibration isolator 5. For example, a larger amount of electric power can be obtained by attaching a set of two piezoelectric elements 21 and 22 constituting the vibration power generation mechanism 19 to the weight 8.
(3) The spring that supports the weight 8 at the top and bottom is not limited to the first air spring 9 and the second air spring 10, and a fluid spring using another fluid or a metal spring can be used. Also, an air spring or a metal spring can be used in combination.
(4) Power may be supplied directly from the vibration power generation mechanism 19 to the sensor 31 and the electrical equipment 34 without using the storage batteries 29 and 32.

(5) The spring that supports the weight 8 is not limited to the vertical direction, and may be supported in the front-rear direction or the oblique direction, for example.
(6) The piezoelectric element may be attached only to one side of the elastic plate 20.
(7) The vibration power generation mechanism 19 is not configured to be disposed between the weight 8 and the housing 6. For example, a cavity is provided in the weight 8, and the elastic plate 20 and the piezoelectric elements 21 and 22 are disposed therein. The power generated may be generated and the generated power may be taken out of the housing 6 from the weight 8 through wiring as appropriate.

3, 3A, 3B, 3C, 3D Loom 5, 5A, 5B, 5C, 5D Vibration isolator 6 Housing 7 Vibration absorber 8 Weight 9 First air spring 10 Second air spring 19 Vibration power generation mechanism 20 Elastic plate 21, 22 Piezoelectric elements 26, 26A, 26B, 26C, 26D Rectifiers 29, 32 Storage batteries 30, 33 Inverter 31 Sensor 34 Electrical equipment

Claims (2)

In the vibration isolator of a loom having a loom mounted on a vibration isolator with a vibration absorber in the housing,
A vibration power generation mechanism that includes at least a free-vibrating weight and a first spring and a second spring that elastically hold the weight between the housing and the vibration absorbing device, and generates power by vibration of the weight. A loom characterized in that the vibration power generation mechanism of each loom is electrically connected to one storage battery for every loom or a group of looms divided into a plurality of looms in a weaving factory. Anti-vibration device. The vibration isolator for a loom according to claim 1, wherein the vibration power generation mechanism is electrically connected to a storage battery, and the storage battery is electrically connected to a sensor disposed in the loom.

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