JP3850167B2 - Automatic desorption method and automatic desorption apparatus for a columnar workpiece bag - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
When performing a desired process on a columnar workpiece accommodated in a packaging bag that is longer than the columnar workpiece, the present invention automatically opens the columnar workpiece, removes the columnar workpiece from the bag, and automatically returns to the original after the processing is completed. It is related with the technique which returns and seals in a bag.
[0002]
[Prior art]
Conventionally, for example, in manufacturing an optical fiber, a columnar optical fiber preform (preform) is first manufactured as a first step. And until it was finally drawn to the optical fiber, processing and stock such as various processing and inspection were made, and during that time, in order to prevent scratches and dirt, it was often stored in a packaging bag, Since the work for removing and removing the bag was almost manual, the work required a long time, and the handling of heavy objects had a high risk, resulting in a decrease in work efficiency and an increase in cost.
[0003]
Conventionally, in order to automatically remove and remove the bag, the bag removal and the bagging are performed separately, and there are automatic devices for each unit of work such as opening and sealing. There is no equipment that can continuously automate the process.
As described above, when the bag removal and landing are performed separately, the removed bag is usually discarded as a waste product, and a new bag is used when covering the bag. However, in such a method, there are difficulties such as high bag costs, a large amount of waste, and equipment costs to deal with a wide variety of workpieces due to differences in workpiece dimensions.
[0004]
[Problems to be solved by the invention]
Therefore, the present invention has been made in view of such conventional problems, and it is possible to automate the detachment of the bag with respect to the columnar workpiece to shorten the detachment time, to reduce manpower, and to reuse the bag as a waste. The main object is to provide a method and an apparatus for automatically detaching a bag of columnar workpieces, which can reduce productivity and reduce costs.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention described in claim 1 of the present invention is a method for automatically unbagging a bag of a package wrapped up to both ends of a columnar workpiece. After opening the bag , open one end of the bag with an automatic opening machine, move the bag chuck, slide the columnar workpiece and the bag relative to each other, and push the tip of the workpiece from the bag opening to form an opening, While maintaining the shape of the opening, the bag chuck is moved and the tip of the workpiece is pulled back into the bag, and then the opening is enlarged by the mouth-opening machine. With the automatic unbagging method for columnar workpiece bags, the bag chuck is moved while the shape is maintained, the workpiece is pushed out, the tip of the pushed workpiece is gripped by the workpiece chuck, and then the workpiece is removed from the bag. is there.
[0006]
According to this automated bag removal method, if there is a small margin between the bag and the columnar workpiece, it can be removed very easily in a short time, and it is stored in the bag to prevent scratches and dirt. Processing and inspections can be performed automatically and continuously on workpieces that flow through the manufacturing process and auxiliary process, so that operations can be stabilized, yield and productivity can be improved, and costs can be reduced. Can do.
[0007]
According to the second aspect of the present invention, in the method of automatically landing a bag that wraps up to both ends of a columnar workpiece, an opening is formed by inserting a mouth opening machine into one end of the bag into which the workpiece is placed. The columnar workpiece held by the workpiece chuck is inserted into the bag from the position where the workpiece axis is aligned with the axis of the opening, and then held by the bag chuck . Next, the bag chuck is moved to move the workpiece and the bag relative to each other. Until the tip of the workpiece reaches the bottom of the bag, hold the bag and workpiece with the bag chuck, release the workpiece chuck and the opening device, and seal the bag opening with an automatic sealing machine. This is an automatic bagging method for a columnar workpiece bag characterized by stopping.
[0008]
According to such an automated bag landing method, if there is a slight margin between the bag and the columnar workpiece, it is extremely easy for a workpiece that has undergone processing such as processing and inspection through the manufacturing process and auxiliary process. In addition, the bag can be automatically and continuously worn in a short time, so that scratches and dirt can be prevented, the operation can be stabilized, the yield and productivity can be improved, and the cost can be reduced.
[0009]
Furthermore, the invention described in claim 3 of the present invention is a method of automatically removing and removing a package bag wrapped up to both ends of a columnar workpiece, wherein the bag removal is performed by the method described in claim 1, The bag attachment after the desired treatment is performed by the method described in claim 2 is an automatic detachment method for a columnar workpiece bag.
[0010]
If the process adopting the automated bag desorption method is incorporated into the manufacturing process and auxiliary process, etc., the columnar workpiece that has been unbagged will be processed again in this process after undergoing processing such as processing and inspection in another process. Since it can be sealed in the original bag, the bag can be reused and waste bags are reduced, and processing such as processing and inspection is continuously performed on workpieces that flow through the manufacturing process and auxiliary process. Since it can be performed automatically, safety can be ensured and operation can be stabilized, yield and productivity can be improved, and cost can be improved.
[0011]
In this case, as described in claim 4, the relative movement between the workpiece and the bag is caused to be displaced between the workpiece and the bag by the bag chuck that can be crimped to and removed from the side surface of the workpiece and the bag. It can be done by grasping.
In this way, the bag can be squeezed into a bellows shape or stretched to the original cylindrical shape, so that the crushed or broken portion of the bag can be corrected, and a funnel-shaped opening The portion can be easily formed, and the bag can be easily attached and detached regardless of the length of the workpiece, and easily and reliably even if the bag is in contact with or stuck to the workpiece at various points.
[0012]
Next, the invention described in claim 5 of the present invention is an apparatus for automatically unbagging and sacking a bag wrapped up to both ends of a columnar workpiece, gripping one end in the axial direction of the columnar workpiece, A work chuck that allows the workpiece to move in the axial direction, and a plurality of bag chucks that are movable along the axial direction of the workpiece and that can be crimped to and detached from the side surface of the workpiece via a bag. It is equipped with a guide means that aligns the axis of the workpiece with the axis of the bag, a number of pins, a mouth opening machine that can expand and reduce the position of these pins on the radiation, an automatic opening machine, and an automatic sealing machine It is an automatic detaching device for a columnar workpiece bag.
[0013]
By using the columnar workpiece bag automatic detachment apparatus configured as described above, the operation of removing the bag from the columnar workpiece packed in the bag and the operation of sealing the workpiece in the bag can be continuously automated. So, if this device is incorporated into the manufacturing process or auxiliary process, almost all processes can be continuous and automated, ensuring safety and stabilizing operations, improving yield and productivity, It becomes an automatic desorption apparatus for a bag of columnar workpieces that can improve the cost.
[0014]
In this case, as described in claim 6, the bag chuck is provided with control means for controlling the pressure-bonding force so that the relative movement between the workpiece and the bag is caused between the workpiece and the bag so as to generate friction. It can be.
If such a bag chuck is used, the bag can be squeezed in a bellows shape or stretched to the original cylindrical shape, so that the crushed or broken portion of the bag can be corrected. Since a funnel-shaped opening can be formed, it is easy to remove the bag, and the bag can be easily removed regardless of the length of the workpiece, and even if the bag is in contact with or stuck to the workpiece at various points. It can be done reliably.
[0015]
In this case, as described in claim 7, the bag chuck is constituted by an elastic contact body, a shock absorber, and a moving mechanism in the direction perpendicular to the axis of the workpiece of the contact body and in the axial direction. it can.
By configuring the bag chuck in this way, the elastic contact body and the bag are almost integrated with the shear friction from the strong state that can support the pressure contact force between the elastic contact body and the bag work so that the work does not move. The columnar workpiece bag automatic detaching apparatus is provided with a bag chuck that can be controlled to a desired pressure-bonding force until the side surface can be slid, or until the bag and the workpiece are free.
[0016]
Furthermore, as described in claim 8, the mouth expander can have a large number of pins upright on a large number of diaphragm plates of the iris diaphragm.
In this way, if the mouth expander is made by planting a large number of pins on a large number of diaphragm plates of the iris diaphragm, the diameter of the throttle hole can be adjusted to the diameter of the bag as the diaphragm plate is continuously operated. The bag can be opened to the maximum by a large number of pins, and the form can be maintained. Accordingly, the columnar workpiece bag automatic detaching apparatus having a mouth-opening machine that can be easily detached can be obtained with almost no tangling or clinging of the bag to the workpiece when the bag is detached.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings, but the present invention is not limited thereto.
Here, FIG. 1A is a schematic configuration diagram of a columnar workpiece bag automatic detaching apparatus of the present invention, and FIG. 1B is a schematic plan view of a bag chuck.
[0018]
An example of the configuration of the columnar workpiece bag automatic detaching apparatus 1 according to the present invention will be described with reference to FIG.
The apparatus 1 is an apparatus that automatically unseals and places a bag B wrapped up to both ends of a columnar workpiece W, and grips at least one end of the columnar workpiece W in the axial direction. A workpiece chuck 2 that can move in the axial direction, and a front bag chuck 5 that can move along the axial direction of the gripped workpiece W and that can be crimped to and detached from the side surface of the workpiece W via a bag B. And a rear bag chuck 6 spaced apart from each other by a predetermined distance, a guide means 3 for aligning the axis of the columnar workpiece W and the axis of the bag B, and a bunch of many pins. The positions of these pins are enlarged and reduced on the radiation. A mouth opening machine 4 that can be opened, and an automatic opening machine 10 and an automatic sealing machine 11 are provided.
[0019]
The front bag chuck 5 or the rear bag chuck 6 includes an elastic contact body 7, a shock absorber 8, and a moving mechanism 9 in the direction perpendicular to the axis of the workpiece of the elastic contact body and in the axial direction. Supported by a shaft 12.
The elastic contact body 7 is generally a rubber-like elastic body. However, the friction coefficient between the bag B and the work W is larger than the friction coefficient between the elastic contact body 7 and the bag B, and the elastic contact body 7 and the bag. When B is integrated and does not slide on the side surface of the work, or when the weight of the work W is heavy and easily deviates, the sawtooth is formed on the contact surface with the work as shown in FIG. It is recommended to use a piece with a nail shape and slide it on the surface of the work piece by hooking it on a bag. In order to obtain further effects, the catching point can be increased by making the nail plate double as shown in FIG. Further, the material of the claw plate is preferably softer than the work when the work is hard like glass, and aluminum, acrylic resin, or the like is used.
By configuring the bag chucks 5 and 6 in this way, the elastic contact body 7 and the bag B can be supported from a strong state capable of supporting the pressure contact force of the elastic contact body 7 and the bag B against the work W so that the work W does not move. Can be controlled to a desired pressing force until the bag B and the workpiece W are free. As the shock absorber 8, a steel spring, a hydraulic damper, a pneumatic damper, or the like is used.
[0020]
If there are at least two bag chucks, the detachment operation of the bag can be reliably performed by sequence control. However, depending on the length and weight of the columnar workpiece, three or more bag chucks may be installed. Further, among the plurality of units, one having a bag chuck function may be used, and the other may have the same function as the work chuck 2.
The combination of the elastic contact body 7, the shock absorber 8 and the moving mechanism 9 in the bag chuck should be at least 3 sets. If the columnar workpiece is a cylinder, it is 3 sets, and if it is a quadrangular column, it is 4 sets. Thus, the work can be easily centered and a heavy work can be reliably supported.
[0021]
For example, if a large number of pins are planted on a large number of iris diaphragms used for the diaphragm of a camera, the widening machine 4 can reduce the diameter of the throttle hole as the diaphragm plate is continuously operated. Therefore, the bag can be opened as much as possible by a large number of pins, and the form can be maintained. Accordingly, when the bag is detached, the bag hardly gets entangled with the workpiece or clings, and can be easily detached.
[0022]
The guide means 3 has an adjustment function for aligning the axis of the columnar workpiece W with the axes of the bag B and the bag chucks 5 and 6, and is composed of, for example, at least two rubber rollers. Moreover, you may add the drive mechanism which moves the package P or the workpiece | work W to an axial direction.
[0023]
The automatic opening machine 10 and the automatic sealing machine 11 may be conventionally known and commercially available, and examples of the automatic opening machine include a knife traveling type, a saddle type, and a tearing type. The automatic sealing machine includes a heat seal type, a string hook type, a tape seal type, and the like. However, the automatic sealer is selected in consideration of the material of the bag, the form, the dimensions, the number of reuses, and the like.
[0024]
Next, an example of the bag detaching method of the present invention by the columnar workpiece bag detaching apparatus 1 will be described.
First, unpacking is performed in the order of steps (a), (b), (c), (d), and (e) in FIG.
After the packaging body P wrapped up to both ends of the columnar workpiece W conveyed to the bag desorbing device 1 is supported by the bag chucks 5 and 6, one end of the bag is opened by an automatic opening machine (not shown). Next, after the crimping force of the front bag chuck 5 is relaxed, if the rear bag chuck 6 is moved upward by a predetermined distance, the workpiece W moves upward, but the bag B is moved to the front bag chuck 5. Since it is restrained and cannot move, the workpiece and the bag are relatively slid, the tip of the workpiece W is pushed out from the opening part of the bag, the opening part of the bag that has been crushed or broken is corrected, and the circumferential length of the bag An opening corresponding to the above is formed (see FIG. 2A).
[0025]
Next, the workpiece W and the rear bag chuck 6 are moved to their original positions while the shape of the opening is maintained, and the tip of the workpiece W is pulled back into the bag. (Refer to FIG. 2B). Then, while the workpiece is supported by the bag chucks 5 and 6, the bag opening is raised in parallel to the position where the tip of the bag opening is hooked on the pin (see FIG. 2 (c)), and then the aperture of the mouth expander 4 is opened. Then, the opening is enlarged with a pin, and the crimping force of the front bag chuck 5 is relaxed while maintaining the shape of the opening enlarged by the mouth enlarger 4, and the rear bag chuck 6 is raised by a predetermined distance. At the same time, the workpiece W is pushed out, and the tip of the pushed workpiece W is gripped by the workpiece chuck 2 (see FIG. 2D).
[0026]
Finally, when the bag chucks 5 and 6 are released, the bag B hangs down by its own weight and returns to its original cylindrical shape. Thus, since a space is generated between the workpiece W and the bag B, the workpiece W can be easily extracted from the bag B by raising the workpiece chuck 2 (see FIG. 2E). Here, when reusing the emptied bag B, the workpiece W is processed in a separate process, inspecting, etc. while the opening is kept expanded with the pins of the mouth expander 4. Wait for it to come back. Alternatively, when replacing with a new bag B, the bag is removed by a handling machine (not shown).
[0027]
Next, the bag is formed in the order of steps (a), (b), (c), (d), and (e) in FIG.
The bag opening machine 4 of the bag detaching apparatus 1 is waiting for the bag B after the work W is extracted at the end of the bag unloading, or a new bag B into which the work W is put is not shown. The opening machine 4 is inserted into the opening machine 4 to form an opening, and is hung down by its own weight to form a cylindrical part (see FIG. 3A). Stops at the position where the workpiece W gripped by the workpiece chuck 2 is inserted into the bag B by about 80% from the position where the axis of the workpiece W is aligned with the axis of the opening of the bag B into which the workpiece W is placed. After that, the workpiece W is supported from above the bag B by the bag chucks 5 and 6 (see FIG. 3B).
[0028]
Subsequently, the crimping force of the rear bag chuck 6 is loosened, and the bag B is lifted up until the bottom of the bag B reaches the tip of the workpiece W (see FIG. 3C). Next, after the work W is supported by the rear bag chuck 6, the work chuck 2 is released, and the rear bag chuck 6 is lowered until the bellows-like bag between the bag chucks 5 and 6 is fully extended (FIG. 3D). )reference). Next, the aperture of the mouth expander 4 is closed and the pin is moved to the center to release the opening of the bag, and the bag chucks 5 and 6 are lowered to the original position in parallel (see FIG. 3E). Finally, the bag is sealed by sealing the leading end of the bag with an unillustrated automatic sealing machine.
[0029]
The columnar workpiece that can be handled in the present invention is not limited to a cross-sectional shape such as a cylinder or a polygonal column. Examples of the material include metal, glass, ceramics, plastic, and wood. The material of the bag is preferably a plastic film, paper, woven fabric, non-woven fabric or the like. The diameter of the cylindrical portion of the bag preferably has a margin of about 5 to 10% greater than the diameter of the columnar workpiece or the cross-section diagonal of the polygonal column workpiece.
[0030]
【Example】
Next, although an example of the present invention is given and explained concretely, the present invention is not limited to these.
(Example)
When automatically measuring and inspecting the properties of a synthetic quartz preform having a diameter of 30 to 100 mm and a length of 600 to 2000 mm using the columnar work bag detaching apparatus 1 shown in FIG. One end of the polyethylene bag of the delivered package was automatically opened and unpacked, and the preform taken out was automatically stored and sealed in the original bag after characteristic measurement and inspection.
When this operation was continuously carried out for 100 lots in which preforms having the above-mentioned size range were mixed, it operated normally without causing any abnormality or accident. Also, the preforms handled were not scratched or soiled. Recycling of polyethylene bags was possible without any problems. However, when the opening is sealed by heat sealing, a loss occurs in a part of the bag at the time of opening, so that the number of reuses is limited to several times.
[0031]
The present invention is not limited to the above embodiment. The above-described embodiment is an exemplification, and the present invention has substantially the same configuration as the technical idea described in the claims of the present invention, and any device that exhibits the same function and effect is the present invention. It is included in the technical scope of the invention.
[0032]
For example, in the above embodiment, the package and the columnar workpiece are described as being arranged in a vertical state, but the present invention can be applied regardless of the arrangement direction of the package and the columnar workpiece in principle. For example, the present invention can be applied even when the work is placed in a horizontal position.
[0033]
Further, when the columnar workpiece and the bag are relatively slid, the workpiece is mainly held by the rear bag chuck and is slid by the front bag chuck, but it goes without saying that the reverse may be possible.
[0034]
【The invention's effect】
As described in detail above, according to the present invention, the automatic desorption of the columnar workpiece bag can be carried out independently of bag removal and bagging, or continuously in the order of bag removal and bagging. You can also. In particular, if the bag is removed continuously, if the bag is left in the device, the workpiece that has been processed and inspected in a separate process can be received again and put on, so that the bag can be reused and the bag removed. The discarded bags are no longer discarded. Therefore, almost no new bags were refilled.
[0035]
In addition, if the bag automatic removal process is incorporated into existing manufacturing processes and auxiliary processes, processing such as processing and inspection is automatically performed continuously on workpieces that are stored in bags and distributed through each process to prevent scratches and dirt. Can be done automatically.
Furthermore, because it supports a wide variety of columnar workpieces and a variety of bags, there is no need to prepare many types of single-function machines as in the past, and the equipment can be miniaturized, resulting in a significant increase in installation area and equipment costs. You can save money.
In addition, the desorption time is shortened, and manpower is hardly required except for operation monitoring and maintenance, and high safety and stability of operation can be maintained. Therefore, the rationalization effect for the entire manufacturing / auxiliary process is extremely large, and the product yield and productivity can be improved and the cost can be improved.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a configuration example of an automatic detaching apparatus for a columnar workpiece bag according to the present invention.
(A) A schematic longitudinal sectional view of the automatic desorption device,
(B) The plane schematic diagram of a bag chuck.
FIG. 2 is a process diagram for removing a bag using the columnar workpiece automatic detaching apparatus of the present invention. (A) After opening one end of the bag, the columnar workpiece and the bag are slid relatively to push the tip of the workpiece from the opening of the bag, thereby forming the opening;
(B) The step of setting the mouth expander at the operation start position after pulling back the tip of the workpiece while maintaining the shape of the opening of the bag,
(C) Activating the mouth-opening machine and expanding the pin radially to expand the opening, (d) Extruding the workpiece while holding the shape of the opening of the bag and gripping it with the workpiece chuck ,
(E) A step of releasing the bag chuck and extracting the workpiece from the bag with the work chuck.
FIG. 3 is a process diagram in the case of bagging using the columnar workpiece automatic detaching apparatus of the present invention. (A) A step of aligning the axis of the columnar workpiece gripped by the work chuck and the axis of the bag with the guide means after opening one end of the bag with the mouth enlarger,
(B) Lowering the workpiece chuck and gripping the workpiece with the bag chuck before the tip of the workpiece lands on the bottom of the bag;
(C) pulling up the rear bag chuck until the bottom of the bag contacts the tip of the workpiece;
(D) after supporting the workpiece with the rear bag chuck, releasing the workpiece chuck and returning the rear bag chuck to the original position;
(E) The step of returning the pin of the mouth-opening machine to the original position to release the opening, and returning the front bag chuck and the rear bag chuck in parallel to the original position.
FIG. 4 is an explanatory view showing an elastic contact body of a bag chuck.
(A) Perspective view of elastic contact body, (b) Perspective view of another example.
[Explanation of symbols]
1 ... Automatic desorption device for bag of columnar workpiece, 2 ... Work chuck,
3 ... Guide means, 4 ... Expansion machine, 5 ... Front bag chuck,
6 ... rear bag chuck, 7 ... elastic contact, 8 ... shock absorber,
9 ... Elastic contact body moving mechanism, 10 ... Automatic opening machine, 11 ... Automatic sealing machine,
12 ... chuck support shaft,
W ... Work, B ... Bag, P ... Package.

Claims (8)

In a method of automatically unpacking a packaged bag wrapped up to both ends of a columnar workpiece, after holding the conveyed package with a bag chuck, one end of the bag is opened with an automatic opening machine, and then the bag chuck To move the column-shaped workpiece and the bag relative to each other and push the tip of the workpiece from the opening portion of the bag to form an opening, and while maintaining the shape of the opening, the bag chuck is moved to move the workpiece. After the tip is pulled back into the bag, the opening is expanded by a mouth expander, and the bag chuck is moved while the shape of the opening expanded by the mouth expander is maintained, and the workpiece is pushed out and pushed out. A method for automatically unbagging a columnar workpiece bag, wherein the workpiece is gripped by a workpiece chuck and then the workpiece is removed from the bag. In the method of automatically bagging a bag that wraps up to both ends of a columnar workpiece, an opening is formed by inserting a mouth opening machine into one end of the bag into which the workpiece is placed, and the axis of the workpiece is aligned with the axis of the opening Insert the columnar workpiece gripped by the workpiece chuck from the position into the bag and then grip it with the bag chuck . Next , move the bag chuck to move the workpiece and the bag relative to each other so that the tip of the workpiece is at the bottom of the bag. Insert the column until it reaches, hold the bag and workpiece with the bag chuck, release the workpiece chuck and the opening machine, and seal the bag opening with an automatic sealing machine. How to arrive.   In the method of automatically detaching the bag of the package wrapped up to both ends of the columnar workpiece, the bag removal is performed by the method described in claim 1, and the bag attachment after performing a desired treatment on the workpiece is claimed. A method for automatically detaching a bag of columnar workpieces, which is performed by the method described in Item 2. 2. The relative movement between the workpiece and the bag is performed by grasping the friction between the workpiece and the bag by using a bag chuck that can be crimped to and detached from the side surface of the workpiece and the bag. 4. A method according to any one of claims 3. In a device for automatically unbagging and sacking a bag wrapped up to both ends of a columnar workpiece, a workpiece chuck for gripping one axial end of the columnar workpiece and moving the workpiece in the axial direction, is movable along the axial direction of the workpiece, and crimped through the bag to the side of the workpiece, comprising a plurality of bags chuck capable of being released, the guide means further align the axis of the shaft and the bag of the columnar work, many An apparatus for automatically detaching a bag of columnar workpieces, comprising: a mouth-opening machine capable of enlarging / reducing the position of these pins on radiation, an automatic opening machine, and an automatic sealing machine.   6. The bag chuck according to claim 5, wherein the bag chuck is provided with a control means for controlling the pressure-bonding force so that the relative movement between the workpiece and the bag is caused between the workpiece and the bag so that friction is generated. Automatic desorption device for the columnar workpiece bag described.   7. The columnar shape according to claim 5, wherein the bag chuck includes an elastic contact body, a shock absorber, and a mechanism for moving the contact body in a direction perpendicular to the axis of the workpiece and in the axial direction. Automatic desorption device for work bags. 8. The columnar workpiece bag automatic according to any one of claims 5 to 7 , wherein the mouth-opening machine has a large number of pins arranged upright on a large number of iris diaphragm plates. Desorption device.

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