JP2017043451A - Adsorber and conveyance method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adsorber capable of favorably performing adsorption of a workpiece formed so that at least one part is fabric, and to provide a conveyance method for conveying the workpiece in an adsorbed state.SOLUTION: In a conveyance step of conveying a floor carpet FC comprising a fabric and a rubber sheet, an adsorption conveyance device 10 is disposed which lifts the floor carpet FC from a pedestal 21 by adsorbing it. The adsorption conveyance device 10 includes: a pump 11 for sucking a gas and discharging it; and an adsorption block 15 for adsorbing a fabric portion of the floor carpet FC based on the suction by the pump 11. The adsorption block 15 comprises by having an adsorption pad made of a porous body, and the rate of hole area of the adsorption pad is formed to be equal to or greater than 83%.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a suction device and a transport method.

  In recent years, transport equipment such as a lift device and a conveyor device that transports an object (workpiece) in a manufacturing process or the like has become widespread. Some transfer facilities include a suction device having a vacuum pump and a suction pad that sucks a workpiece by being depressurized by the vacuum pump (see, for example, Patent Document 1).

Japanese Patent No. 3435383

  However, when the suction surface of the workpiece is formed of cloth like a vehicle floor carpet, the workpiece may not be sucked by the suction device.

  This invention is made | formed in view of the said situation, and provides the conveying method which conveys in the state which adsorb | sucked the workpiece | work with the adsorption | suction apparatus which can perform adsorption | suction of the workpiece | work in which the adsorption | suction surface was formed with cloth suitably. Is the main purpose.

  Hereinafter, effective means for solving the above-described problems will be described while showing effects and the like as necessary. In the following, for easy understanding, the corresponding configuration in the embodiment of the invention is appropriately shown in parentheses, but is not limited to the specific configuration shown in parentheses.

Means 1. An adsorption device that adsorbs a workpiece (floor carpet FC) at least partially made of fabric,
A pump (pump 11) for sucking and discharging gas;
A suction pad (suction pad 16) for suctioning the workpiece based on suction by the pump with the fabric as a suction surface (a fabric portion of the floor carpet FC);
The suction pad is a porous body, and is formed so that the porosity is 83% or more.

  When the hole area ratio is increased to 83% or more as shown in Means 1, compared with a suction pad (having a hole area ratio of about 20%) used in an existing vacuum suction device or the like, The flow rate can be increased by reducing the intake resistance in the suction pad. In the first place, since it is difficult to improve the airtightness at the contact portion in the first place, it is difficult to secure the adsorption force depending on the negative pressure. In this respect, if the hole area ratio is set to be high as shown in this means and the dependence on the latter of the negative pressure and the flow rate is increased, it is possible to adsorb the fabric portion as a target.

  For example, if it is a type that uses an arm or the like to hold the workpiece, restrictions on the material of the workpiece can be eliminated, but the operation period of the arm is required, so that the conveyance efficiency can be lowered. In this regard, even if the workpiece has a fabric portion, if it can be held by the suction device, it can contribute to an improvement in the conveyance efficiency of the workpiece.

  Mean 2. 2. The suction device according to claim 1, wherein the suction pad is made of a sponge material and has a hole area ratio of 95% or less.

  When increasing the aperture ratio of the suction pad, there is a concern that if the aperture ratio is close to 100%, molding becomes difficult and the quality of the suction pad varies greatly. The possibility that the desired suction force cannot be obtained increases due to variations in the quality and the like of the suction pad. This can be a factor that reduces the reliability of the adsorption device. For example, the above-mentioned inconvenience is likely to occur for sponge materials and the like that easily set the hole area ratio to 95% or more. Therefore, if the aperture ratio is set to 95% or less as shown in this means, such a disadvantage can be suppressed and a practically preferable configuration can be realized.

  Means 3. The suction device according to the means 1 or 2, wherein the suction pad is formed so that a hole area ratio is 91% or less.

  As shown in the means 1, in a configuration in which the work has a fabric portion, deformation such as bending is likely to occur in the fabric portion. As described above, in the configuration that suppresses the resistance in the suction pad and increases the suction force by the flow rate, when the workpiece floats from the suction pad due to the deformation or the like, the negative pressure is rapidly increased by the inflow of air through the floating portion. Can be reduced. This is assumed to be a factor that reduces the attractive force. It is preferable to set the open area ratio to 83% to 91% in order to suppress the occurrence of such inconveniences and to suitably exhibit the adsorption function shown in the means 1.

  Means 4. 4. The suction pad according to claim 1, wherein the suction pad is made of a synthetic resin whose contact portion with the workpiece can be elastically deformed following the unevenness of the workpiece during the suction. Adsorption device.

  When the suction target is a fabric, unevenness is generated on the suction surface of the workpiece. When such a concavo-convex creates a gap between the suction pad and the suction surface and the contact area becomes small, the suction force (holding force) of the workpiece can be reduced. In this regard, as shown in this means, if the portion that contacts the workpiece in the suction pad can be deformed following the workpiece, the contact area with the workpiece can be increased. Thereby, it can contribute to collateral of adsorption power.

  Means 5. The suction device according to any one of means 1 to means 4, wherein the suction pad is made of a sponge material.

  When the suction target is a fabric, unevenness is generated on the suction surface of the workpiece. When such a concavo-convex creates a gap between the suction pad and the suction surface and the contact area becomes small, the suction force (holding force) of the workpiece can be reduced. In this respect, if the suction pad is made of a sponge material as shown in this means, a certain degree of deformation following the work is allowed for the portion of the suction pad that contacts the work. By imparting such followability, it is possible to contribute to securing the attractive force.

  The suction pad is often formed using a metal material such as ceramic. When the open area ratio is set to 70% or more with this type of metal material, there is a concern that defects such as cracks are likely to occur, resulting in a decrease in formability and a decrease in the reliability of the adsorption function. On the other hand, if the suction pad is configured by using a sponge material, it is possible to suitably cope with a hole area ratio exceeding 70% as shown in the means 1.

  Means 6. The suction device according to claim 5, wherein the suction pad is configured to have a hole area ratio of 89% or more.

  By increasing the suction work rate to increase the negative pressure generated in the suction pad, the pressure loss in the suction pad increases. This becomes a factor of increasing the resistance generated in the suction pad. When the suction pad is made of sponge and elastic deformation is allowed, the possibility that the suction pad itself may be crushed (for example, clogged) due to such an increase in resistance cannot be denied. In this regard, if the hole area ratio is set to 89% or more to reduce the resistance generated in the suction pad, the occurrence of the above inconvenience can be suitably suppressed.

  Mean 7 A regulating member (reinforcing member 18) that is disposed between the suction pad and the pump and regulates the deformation of the suction pad in the suction direction by the pump by contacting the suction pad. The adsorbing device according to any one of means 1 to 6, characterized in that:

  When the suction pad is formed of a sponge material as shown in the means 5 or the like, the strength of the suction pad can be reduced as compared with a metal material such as ceramic. If the suction force of the pump is increased, the force for pulling the suction pad in the suction direction is also increased, and therefore the possibility that the suction pad itself is recessed in the suction direction cannot be denied. If such bending deformation occurs, the suction function shown in the means 1 or the like cannot be performed well. Then, if it is set as the structure which suppresses the bending deformation of a suction pad by a limitation member (reinforcing member) as shown to this means, generation | occurrence | production of the said problem can be suppressed suitably.

  Means 8. A transport method for transporting the work in a state of being sucked by the suction device according to any one of means 1 to means 7.

  If it is possible to transport the fabric part while adsorbing it, it is possible to contribute to the improvement of the transport efficiency in the transport facility for the workpiece having the fabric part.

Schematic which shows the adsorption conveyance apparatus in 1st Embodiment. The disassembled perspective view which decomposes | disassembles and shows an adsorption conveyance apparatus for every main structure. Schematic which shows the mode of adsorption | suction. Schematic which shows the mode of a tension test. The graph which shows the relationship between adsorption power and a hole area rate. The table | surface which shows the relationship between adsorption power and a hole area rate.

<First Embodiment>
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 and 2. In the present embodiment, the suction conveyance device 10 that moves a floor carpet FC (corresponding to “work”) mounted on a vehicle between the pallet 21 and the conveyor 22 is embodied. FIG. 1 is a schematic diagram showing the suction conveyance device 10, and FIG. 2 is a schematic diagram showing the suction conveyance device 10 expanded for each main configuration.

  As shown in FIG. 1, the suction conveyance device 10 includes a pump 11 that sucks and discharges a gas, and a pipe 12 having one end connected to the pump 11. By operating the pump 11, air in the pipe 12 is discharged, and outside air is taken into the pipe 12 through the other end portion (inlet portion 13) of the pipe 12. A shutter that can open and close an intake passage that connects the inlet portion 13 and the pump 11 is disposed in the middle of the pipe 12. When the shutter is disposed at the open position, intake through the inlet portion 13 is allowed, and when the shutter is disposed at the closed position, intake through the inlet portion 13 is restricted.

  The inlet portion 13 of the pipe 12 is an enlarged diameter portion formed so as to increase in diameter, and an adsorption block 15 is disposed so as to cover the inlet portion 13. As shown in FIG. 2, the suction block 15 is a combination of a disk-like suction pad 16 having an outer diameter matched to the inlet portion 13 and an annular frame member 17 that covers the outer peripheral surface of the suction pad 16. In this way, the suction pad 16 is fixed to the pipe 12 so that the plate surface faces the same direction as the inlet portion 13, thereby preventing the pipe 12 from falling off.

  The suction pad 16 is a porous body, and the appearance is a solid block shape, but most of the volume is pores. The temperament portion of the suction pad 16 is formed so that individual pores are continuous, thereby forming a three-dimensional network structure. When the pump 11 is operated, air is taken into the pipe 12 through the temperament portion of the suction pad 16. Since the outer peripheral portion of the suction pad 16 is blocked by the frame member 17, the inflow / outflow of air through the outer peripheral portion is impossible, and the plate surface of the suction pad 16 becomes the air inlet / outlet. Limited.

  A reinforcing member 18 that reinforces the suction pad 16 is fixed to the frame member 17. The reinforcing member 18 is formed by connecting a ring portion formed along the frame member 17 and a plurality of spoke portions extending radially from the center portion of the ring portion, and is opposite to the workpiece side at the suction pad 16. Is in contact with the plate surface.

  The suction pad 16 is made of an elastically deformable synthetic resin material, specifically, a polyvinyl alcohol sponge (hereinafter referred to as PVA sponge). For this reason, when suction by the pump 11 is performed, the suction pad 16 itself may bend in the suction direction due to the action of this suction force. If such a deflection becomes large, there is a concern that it is difficult to secure the contact area with the floor carpet FC. In this respect, the occurrence of such inconvenience can be suppressed by adopting a configuration in which the reinforcement pad 18 suppresses the bending (deformation) of the suction pad 16.

  As shown in the schematic diagram of FIG. 3, the floor carpet FC achieves both improvement in durability and improvement in texture by overlapping a cloth material (cloth portion) and a rubber sheet. About the fabric part, the fiber has stood up from the rubber sheet, and the surface has unevenness. Conventionally known vacuum suction devices that suck workpieces mainly using negative pressure need to improve the airtightness by bringing the suction pad and the workpiece suction surface into close contact with each other. It becomes a factor to reduce. Further, in the floor carpet FC, the gap between the fibers becomes a passage for air, and it is difficult to increase the negative pressure. Under such circumstances, it is assumed that it is difficult to exert an adsorption force sufficient to lift the floor carpet FC with the existing operating principle that relies on negative pressure. In this regard, in the present embodiment, the dependence on the negative pressure is alleviated by using both the negative pressure generated by the suction of the pump 11 and the sucked air (flow rate). Specifically, air suction is actively performed by setting the hole area ratio of the suction pad 16 to 83% or more and reducing the intake resistance. That is, the decrease in the adsorption force due to the decrease in the negative pressure is compensated by increasing the adsorption force by increasing the flow rate. Thereby, it becomes possible to make a fabric part into adsorption | suction object.

  The flow of conveying the floor carpet FC will be described with reference to FIG. 1 again. When the shutter is opened in a state where the suction block 15 is pressed against the floor carpet FC placed on the pallet 21, the flow path is switched and suction through the suction block 15 is started. As a result, the floor carpet FC is adsorbed to the adsorption block 15 and the floor carpet FC is held by the adsorption conveyance device 10. At this time, the suction force by the suction conveyance device 10 is prevented from reaching the floor carpet FC disposed under the floor carpet FC to be suctioned. For this reason, the plurality of floor carpets FC are not lifted simultaneously. After the floor carpet FC is held and moved to the adjacent conveyor 22, the flow path is switched by closing the shutter, and the suction through the suction block 15 is released. Thereby, the floor carpet FC moves to the conveyor 22, and the conveyance of the floor carpet FC is completed.

  In addition, what kind of process the suction conveyance device 10 is applied to is arbitrary. For example, the suction conveyance device 10 can be used when the floor carpet FC flowing on the conveyor 22 is moved to a shipping stocker or the like. is there. Moreover, it replaces with the structure which switches an adsorption | suction state and an adsorption | suction cancellation | release state using a shutter, and is set as the structure which switches the adsorption | suction state and a cancellation | release state by controlling the drive state (suction amount) of the pump 11. FIG. It is also possible.

  EXAMPLES Hereinafter, although this invention is demonstrated concretely based on an Example, this invention is not limited to these Examples.

<Example 1A>
In Example 1A, a suction pad 16 having an open area of 83% is used, the outer diameter of the suction pad 16 and the inner diameter of the inlet portion 13 are 200 mm, the thickness of the suction pad 16 is 10 mm, and the floor carpet is used. The weight of FC is 5000 g. Further, the thickness dimension of the reinforcing member 18 is 5 mm, the width dimension of the ring part is 10 mm, the number of spoke parts is three, and the width dimension is 10 mm.

  Here, as shown in the schematic diagram of FIG. 4, the result of a tensile test with the force gauge FG attached to the floor carpet FC will be described. The lower limit value of the adsorption force necessary to hold the floor carpet FC is 5N, and the evaluation is “impossible” when the floor carpet FC falls during the transportation process such as lifting, but the fall is avoided. The case where the posture of the floor carpet FC is unstable is “OK”, and the case where the fall is avoided and the posture is stable is “good”.

  When the suction power by the pump 11 was set to 14 W, the suction force was around 5N. Since the attracting force is close to the lower limit, “possible” and “impossible” are mixed for the evaluation of the holding state. In other words, although the floor carpet FC could be lifted at a work rate of 14 W, there was room for improvement in the stability of the holding state (see Table 1 in FIG. 6).

  When the suction power was 70 W, a value exceeding 5 N was detected in all samples, and the average value of the suction force was 10.9 N. Since the adsorbing force exceeding the lower limit was ensured and the holding state was maintained even when the floor carpet FC was pulled with a certain amount of force, the holding state was judged as “good”.

  In addition, the thickness of the suction pad 16 was changed to 2 times (20 mm) and 3 times (30 mm), and a test similar to the above test was performed, but the test results were almost the same as before the thickness of the suction pad 16 was changed. Therefore, the description of the test results is omitted.

<Example 2A>
In the suction block 15 in Example 2A, a suction pad 16 having an opening rate of 89% higher than that in Example 1A is mounted. Also in the case where this suction pad 16 was used, the holding condition was evaluated under the same test conditions as in Example 1A.

  When the suction power by the pump 11 was set to 14 W, a value exceeding 5N was detected in all the samples, and the average value of the suction force was 12.8N. Further, when the suction power was set to 70 W, a value exceeding 5N was detected in all the samples, and the average value of the suction force was 16.3N. At any suction power, the suction force exceeding the lower limit was secured, and the holding state was maintained even when the floor carpet FC was pulled with a certain amount of force, so the holding state was judged as “good”. (See Table 1 in FIG. 6).

  When compared with the same suction power, the suction force of the suction pad 16 having the aperture ratio of 89% shown in the present Example 2A can be set higher than that of the suction pad 16 having the aperture ratio of 83% shown in the Example 1A. Is better.

  Further, if the suction power increases, not only the burden on the suction pad 16 increases, but also the cost of equipment increases. In this regard, the suction pad 16 having an aperture ratio of 89% shown in the present embodiment A2 has a suction work while ensuring the suction force as compared with the case where the suction pad 16 having an aperture ratio of 83% shown in the embodiment A1 is used. It is excellent in that the rate can be reduced.

<Example 3A>
In the suction block 15 in Example 3A, 91% of the suction pads 16 having a higher hole area ratio than those in Examples 1A and 2A are mounted. Also in the case where this suction pad 16 was used, the holding condition was evaluated under the same test conditions as in Example 1A.

  When the suction power by the pump 11 was set to 14 W, a value exceeding 5 N was detected in all samples, and the average value of the suction force was 9.4 N. When the suction power was set to 70 W, a value exceeding 5N was detected in all samples, and the average value of the suction force was 7.3N. At any suction power, an adsorption force exceeding the lower limit was ensured, and the holding state was maintained even when the floor carpet FC was pulled to some extent, so the holding state was determined to be “good” ( (See Table 1 in FIG. 6).

  As shown in the graph of FIG. 5, when the hole area ratio was increased from 83% to 89%, an increase in the adsorption power was confirmed, but when the porosity was further increased from 89% to 91%, the adsorption power decreased. Was seen. Increasing the aperture ratio is advantageous in reducing the intake resistance (pressure loss in the suction pad 16) and securing the flow rate. However, the suction pad 16 functions not only as a partition for partitioning the inside and outside of the pipe 12 but also as a throttle part for narrowing the air flow path. That is, since the suction pad 16 is a porous body, the pressure change through the suction pad 16 is less likely to occur. If the hole area ratio is increased, it is considered that the function as such a throttle portion is lowered. In other words, the reason why the hole area ratio was increased to secure the flow rate is that when there is a part that facilitates ventilation when adsorbing the floor carpet FC, the flow rate at that part increases and the pressure difference decreases at a stretch. It is thought that it becomes one of.

  Here, assuming that the hole area ratio was 100%, the same test was performed in a state where the adsorption block 15 used in Examples 1 to 3 was removed (see Comparative Example 1 in Table 2 of FIG. 6). . In this case, the floor carpet FC could not be lifted even when the suction power was set to 14 W or 70 W. In the case where the suction pad 16 is not provided, it is considered that the fact that the resistance that hinders the increase in the local flow rate as described above is eliminated causes a decrease in the suction force. In view of the fact that the suction pad 16 can also function as a restricting means for restricting deformation of the floor carpet FC, the suction pad 16 is not provided, and the shape of the suction portion in the floor carpet FC becomes unstable. It is also considered that this is a factor inducing the occurrence of a location where the flow rate can locally increase.

  When the suction pad 16 has resistance to ventilation, that is, when pressure loss occurs in the suction pad, a load is easily generated on the suction pad 16. Therefore, the possibility that the suction pad 16 is deformed cannot be denied. In particular, since the suction pad 16 shown in the present embodiment is formed of an elastically deformable PVA sponge, it is considered that the above-described temperament portion is easily crushed as the resistance increases. If the hole area ratio decreases, the resistance increases, and the occurrence of crushing (blocking) → decrease in adsorption power can occur. On the other hand, although the resistance decreases as the hole area ratio increases, the load generated on the suction pad 16 is reduced. However, the strength itself of the suction pad 16 decreases, so that occurrence of crushing (blocking) → It is presumed to cause a decrease in adsorption power. For example, when the aperture ratio was 83% and 89%, it was confirmed that the suction force increased by increasing the suction power from 14 W to 70 W. On the other hand, when the hole area ratio was set to 91%, it was confirmed that the suction force was lowered by increasing the suction power from 14 W to 70 W. This result is considered to indicate the possibility that the strength is insufficient by setting the hole area ratio to 91% when the suction power is set high.

  Thus, when considering the relationship between the strength of the suction pad 16 and the hole area ratio, the hole area ratio of the suction pad 16 is 83% to 91%, more preferably 83% to 89%, still more preferably 89. If it is%, it is considered that the above-mentioned inconvenience can be suppressed and the adsorption force can be stably exhibited.

  The surface of the floor carpet FC becomes a fabric portion, and this fabric portion is adsorbed. The presence of the suction pad 16 is advantageous for increasing the contact area between the floor carpet FC and the suction pad 16, and can reduce the load generated at the suction location when the floor carpet FC is sucked. Thereby, it is possible to suppress the adsorption traces from remaining on the floor carpet FC, and to avoid the use of the adsorption conveyance device 10 being a factor that reduces the appearance of the floor carpet FC.

  Since the suction pad 16 can be elastically deformed, the suction pad 16 can be deformed so that the contact point with the floor carpet FC follows the floor carpet FC. That is, it is possible to avoid forcing the floor carpet FC to be excessively deformed during suction. This is also advantageous in making the above-mentioned adsorption traces difficult to remain. Further, if the suction pad 16 can follow the floor carpet FC, the gap generated between the suction pad 16 and the floor carpet FC is reduced, which is advantageous for increasing the contact area (negative pressure) between them. .

  It was confirmed that the floor carpet FC can be adsorbed in the range of the open area ratio of 83% to 91%. Here, a supplementary explanation of the molding of the PVA sponge is that if the porosity is around 90%, the molding can be performed well, but those outside this range (especially those having a porosity exceeding 95%). Molding becomes difficult. For the above reasons, in view of circumstances such as the adsorbing force and holding state to be exerted, and the quality of the PVA sponge, etc., in configuring the adsorbing pad 16 with the PVA sponge, the porosity is preferably 95% or less, more preferably It is preferably about 89% to 91%.

  In a vacuum suction device, a ceramic material is often used as a suction pad (chuck). The ceramic material is generally formed so as to have a porosity of about 20% to 40%, and it is difficult to form a ceramic material having a porosity of less than 10% or more than 70%. That is, the range of the hole area ratio assumed to be preferable from the viewpoint of moldability, quality assurance, and the like is different from that of PVA sponge. In consideration of such circumstances, the fact that the suction pad 16 is made of PVA sponge while increasing the aperture ratio to more than 83% realizes stabilization of the operation of the suction conveyance device 10 and improvement of reliability. Technical significance is above. Further, it is advantageous to reduce the weight by forming the suction pad with PVA sponge in order to realize the transport efficiency and the like in the suction transport device 10.

  Incidentally, the same test as in Examples 1A to 3A was also performed when a ceramic material having a hole area ratio of 55% was used as the suction pad (see Comparative Example 2 in Table 2 of FIG. 6). In this case, the floor carpet FC could not be lifted even when the suction power was set to 14 W or 70 W.

<Second Embodiment>
In the first embodiment, the reinforcing material 18 is used to restrict the bending of the suction pad 16, but it is sufficient if the bending of the suction pad 16 can be suppressed (that is, the suction force of the floor carpet FC). However, it is also possible to eliminate the reinforcing material 18.

  EXAMPLES Hereinafter, although this invention is demonstrated concretely based on an Example, this invention is not limited to these Examples.

<Example 1B>
In Example 1B, the opening ratio of the suction pad 16 is 89%, the outer diameter of the suction pad 16 and the inner diameter of the inlet portion 13 are 200 mm, the thickness of the suction pad 16 is 10 mm, and the weight of the floor carpet FC. The configuration is the same as that of Example 2A except that the reinforcing material 18 is not provided. In Example 1B, the adsorption force is measured and the holding state is evaluated by a test similar to the above test.

  When the suction power by the pump 11 was 14 W, a value exceeding 5 N was detected in all samples, and the average value of the suction force was 14.0 N. Further, when the suction power was set to 70 W, a value exceeding 5N was detected in all the samples, and the average value of the suction force was 16.5N. Thus, since sufficient adsorption | suction force was ensured, it was judged that each holding | maintenance state was "good" (refer Table 3 of FIG. 6).

<Example 2B>
In Example 2B, the test conditions were set and the holding state was evaluated in the same manner as in Example 3A, except that a suction pad 16 having a hole area ratio of 91% was used.

  When the suction power by the pump 11 was 14 W, a value exceeding 5N was detected in all samples, and the average value of the suction force was 9.6N. When the suction power was 70 W, a value exceeding 5N was detected in all samples, and the average value of the suction force was 6.9N. Thus, since sufficient adsorption | suction power was ensured, it was judged that the holding | maintenance state was "good" (refer Table 3 of FIG. 6).

  In the configuration in which the suction pad 16 has sufficient strength, it was confirmed that the holding force of the floor carpet FC is ensured even when the reinforcing material 18 is not provided. However, as described above, the durability of the suction pad 16 may be reduced as compared with the case where the suction pad is made of metal. For this reason, it cannot be denied that the suction force may be reduced when the suction pad 16 is deformed (for example, plastic) by repeated use of the suction conveyance device 10. Therefore, in order to ensure the durability and reliability in consideration of repeated use, it is preferable to use the reinforcing material 18 shown in the first embodiment.

  In addition, it is not limited to the description content of each embodiment mentioned above, For example, you may implement as follows. Incidentally, the configurations of the following different modes may be applied individually to the configurations of the above embodiments, or may be applied in combination with each other.

  (1) In each of the above embodiments, the suction pad 16 is made of PVA sponge, but the material of the suction pad is not limited to this. A porous body with sufficient air permeability is sufficient, and the porous body may be arbitrarily changed as long as the porosity can be 83% or more. For example, synthetic resin materials such as polyethylene and elastomer can be used.

  (2) The suction pad 16 does not necessarily need to be deformed (elastically deformed) following the suction surface of the floor carpet FC, and may be configured not to be elastically deformed substantially. Further, the suction pad 16 can be formed by combining a plurality of members made of different materials. For example, in the case of a two-layer structure in which the first member and the second member are overlapped, it is preferable that the one in contact with the floor carpet FC is configured to be elastically deformable.

  (3) In each of the above-described embodiments, the floor carpet FC is sucked using the sucking and conveying apparatus 10. However, if the whole is formed so as to be cloth or part of the cloth, the object to be sucked is used. May be arbitrarily changed. For example, a door trim, a seat cover, a sunshade, and the like mounted on a vehicle are formed by attaching a cloth material to a base material. Moreover, it is also possible to make household goods, such as a rug, a cushion, and a doormat, adsorption object. The fabric is not limited to a woven fabric or a knitted fabric, but includes a nonwoven fabric in which fibers are joined to form a fabric.

  (4) In each of the above-described embodiments, the suction block 15 is directly fixed to the pipe 12. However, the suction block 15 is changed to the suction block 15 via a bellows (for example, rubber bellows) that can expand and contract in the suction direction. It is also possible to fix 15.

  (5) In each of the above embodiments, the suction conveyance device 10 is applied to the manufacturing process to the shipping process of the floor carpet FC. However, the present invention is not limited to this. For example, the suction conveyance device 10 can be applied to a process of mounting the floor carpet FC on a vehicle. Further, if the posture of the floor carpet FC is changed while the floor carpet FC is held, for example, it is possible to contribute to improvement in convenience when performing confirmation in an inspection process or the like.

  DESCRIPTION OF SYMBOLS 10 ... Adsorption conveyance apparatus as an adsorption device, 11 ... Pump, 15 ... Adsorption block, 16 ... Adsorption pad, 18 ... Reinforcing material as a regulating member, FC ... Floor carpet as a workpiece.

Claims (8)

An adsorption device for adsorbing at least part of a workpiece made of fabric,
A pump for sucking and discharging gas,
A suction pad for sucking the workpiece based on suction by the pump with the fabric as a suction surface;
The suction pad is a porous body, and is formed so that the porosity is 83% or more.   The suction device according to claim 1, wherein the suction pad is formed to have a hole area ratio of 95% or less.   The suction device according to claim 1, wherein the suction pad is formed to have a hole area ratio of 91% or less.   4. The suction pad according to claim 1, wherein the suction pad is made of a synthetic resin whose contact portion with the workpiece can be elastically deformed following the unevenness of the workpiece during the suction. The adsorption device according to 1.   The suction device according to any one of claims 1 to 4, wherein the suction pad is made of a sponge material.   The suction device according to claim 5, wherein the suction pad is configured to have a hole area ratio of 89% or more.   A regulating member is provided between the suction pad and the pump, and is provided with a regulating member that regulates bending deformation of the suction pad in the suction direction by the pump by contacting the suction pad. The adsorption device according to any one of claims 1 to 6.   A transport method for transporting the work in a state of being sucked by the suction device according to claim 1.

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