JP2004123107A - Powder bag opener - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a powder bag opener which can automatically and successively clean a powder bag filled with stock such as powder/fine granules and sealed on its surface, form a cutter line (open the bag), discharge the stock, and dispose of the empty bag. <P>SOLUTION: The opener for the powder bag 1 consists of: a bag shaping part 3 capable of blowing off, by jetting air, dust attaching to the surface of the powder bag 1 filled with the stock such as powder/fine granules to be sealed with its carrying direction determined and also shaping its external shape; a conveyer 4 for sending the powder bag 1 which has passed through the bag shaping part 3 to a next process; a bag opening part 5 for opening the lower surface of the powder bag 1 in an X-shape; and a discharging part 6 for discharging the stock from the opened powder bag 1. The conveyer 4 has a scraper 20 for sending the powder bag 1 after shaping to the bag opening part 5 and a scraper 21 for sending the opened bag 1 to the discharging part 6, and also has a scraper 22 for sending the empty bag after discharging the stock to the outside. Since the dust is thus sucked into an external dust collector, the powder bag 1 can be sent to the next process in a clean state. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a bag opening apparatus, and in particular, cleans the surface of a powder bag filled and sealed with powder or fine particles used in the fields of foods, pharmaceuticals, chemicals, and the like, and then opens the bag (the material discharge surface). The present invention relates to a bag opening apparatus capable of continuously performing forming), discharging of raw materials, disposal of empty bags, and the like in a series of operations.
[0002]
[Prior art]
Powders and microparticles used in a wide range of industrial fields such as foods, pharmaceuticals, and chemicals (hereinafter simply referred to as raw materials) are filled and sealed in bags made of paper, cloth, and other materials at a flour mill. Shipped in. In each industry that uses raw materials, a single raw material or a plurality of mixed raw materials are subjected to various types of processing to produce a product in accordance with the purpose of use. For commercialization, it is necessary to take out the raw material from the bag. For that purpose, it is necessary to form an opening surface for taking out the raw material in the bag.
[0003]
The simplest means for forming the opening surface is to open the bag opening wide by sewing the both ends of the bag and unsealing the sewing machine thread that closes the bag opening, or use a cutter knife to cut an appropriate part of the bag surface. They were cut open to form an opening. Further, the bag is cut by a disk-shaped saw blade rotating at a high speed, or the bag is cut by cutting blades provided above and below the bag.
[0004]
[Problems to be solved by the invention]
The bag is filled and stored only with pure materials without contamination and without contamination.However, when the bag is opened by the above-mentioned means and method, it adheres to the surface of the bag. There is a risk that garbage, dust or the like may enter into the bag from the opening surface, or garbage or dust or the like may be mixed in the taken-out raw material.
[0005]
In particular, the bag is formed in multiple layers by stacking several pieces of paper or cloth, so when opening the bag surface using a cutter knife, it cannot be cut open at once, and the cutter work must be repeated. As a result, chips, fibers and the like are generated in the bag, which enter the bag and are mixed with the raw material. The contamination of the raw material with dust and chips as described above contaminates the raw material and cannot be used for product processing, product manufacturing, and the like.
[0006]
Furthermore, after unsealing the sewing thread or opening the bag using a cutter knife, the operator holds the bag with both hands to take out the raw material from the opening surface, and discharges the raw material with the opening surface downward. The labor burden on the staff was large, and the work efficiency was poor.
[0007]
In consideration of the above, in recent years, the opening of the bag and the removal of the raw material from the opening have been performed mechanically, but each operation is performed independently in different places. Had been For this reason, an operator must transport the opened bag to the raw material discharge section, but the raw material spills out of the bag during transportation, and a large amount of useless raw material has been generated that cannot be used. Even when the opening surface is formed or the raw materials are discharged in a close place, the bag must be moved manually, and the opening and discharging operations cannot be performed automatically in a series of operations. Had a poor processing efficiency.
[0008]
Therefore, the applicant of the present application has disclosed a powder bag transfer device, a powder bag supply device, a bag opening device having an opening for taking out the contents in the powder bag, and a powder bag from the opened powder bag as disclosed in JP-A-6-144430. An integrated apparatus including a discharge device for taking out the body, a take-out device for discarding empty bags, and the like are provided, and an automatic powder bag processing device that performs a series of operations from bag opening to disposal of empty bags is provided.
[0009]
However, since this device does not have a mechanism for cleaning the surface of the powder bag, when the powder bag 1 housed in the box 21 is formed into a square cutter line by the cutter 31, dust or dust is generated from the cutter surface. Etc. may enter the powder bag 1.
[0010]
In addition, when the powder bag 1 is put into the box 13 of the supply device 4 from the transfer device 3 in a case where the powder is partially raised in the powder bag 1, the raised portion is formed by the edge of the box 13. May not be able to enter. Further, when the cutter 31 is moved in the X-axis or Y-axis direction by the cutter driving mechanism 23, the metal powder generated by friction between the metals adheres to the upper surface of the powder bag 1 because the ball screw mechanism is used. This was a cause of powder contamination.
[0011]
The present invention has been made in view of the above-mentioned various problems of the prior art, and cleans the surface of the powder bag and arranges the powder bag into a flat shape so that the raw material distribution is uniform. It is an object of the present invention to provide a bag opening apparatus capable of automatically and continuously performing an operation of intermittently sending empty bags and discarding empty bags.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, the powder bag opening apparatus of the present invention fills and seals raw materials such as powder and fine particles, and attaches dust and dirt to the surface of the powder bag 1 whose transfer direction is determined. And a transfer device 4 for intermittently transferring the powder bags 1 having passed through the bag-forming unit 3 to the next process, The bag 1 includes a bag opening section 5 for opening the lower surface of the bag 1 in an X-shape, and a discharge section 6 for discharging raw materials from the opened powder bag 1. The discharge unit 6 is provided close to the powder bag 1 along the transfer direction.
[0013]
The transfer device 4 capable of reciprocating along the transfer direction of the powder bag 1 includes a scraper 20 for feeding the powder bag 1 after the bag preparation into the bag opening section 5 and a scraper for feeding the powder bag 1 after the bag opening to the discharge section 6. 21 and a scraper 22 for feeding the empty bag after discharging the raw material to the outside.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows the entire bag-opening device of the present invention. This bag-opening device includes an arrangement section 2 of a powder bag 1 filled with raw materials such as powders and fine particles and sealed, and a bag sizing of the powder bag 1. A powder bag 1 transfer device 4; a bag opening portion 5 of the powder bag 1; and a raw material discharge portion 6. These are installed close to each other on the same plane along the transfer direction of the powder bag 1. I have.
[0015]
As shown in the right end of FIG. 1, the powder bags 1 are vertically and horizontally aligned on a pallet 7, stacked in a plurality of upper and lower stages, and placed near the alignment unit 2. The powder bags 1 on the pallet 7 are placed on the alignment unit 2 one by one by a depalletizing robot 8. The arranging unit 2 includes a belt conveyor 9 that is circulated and driven by a motor M, and transfers the powder bag 1 to the bag arranging unit 3. When the powder bag 1 is placed on the aligning unit 2, The orientation is determined.
[0016]
That is, the powder bag 1 has a flat rectangular shape, and in the present invention, is placed on the alignment unit 2 such that the long side faces the transfer direction. When the powder bag 1 placed on the alignment unit 2 by the deparet robot 8 is inclined with respect to the transfer direction, the orientation is adjusted by the alignment plates provided on the plurality of cylinders 10. .
[0017]
The bag sizing unit 3 is an independent closed space due to a housing structure, and has a cleaning mechanism capable of performing an air shower by an injection pipe 11 and a flat compaction mechanism by a compaction roller 12 therein, An entrance and an exit on both sides of the bag 1 in the transfer direction can be opened and closed by a shutter 13.
[0018]
The powder bag 1 whose transfer direction is adjusted is sent to the bag adjusting unit 3 by the belt conveyor 9, but at least the shutter 13 on the entrance side facing the alignment unit 2 is open, so that the powder bag 1 is adjusted. The roller conveyor 14 which is fed into the bag portion 3 and driven to rotate by the motor M can move forward.
[0019]
The shutter 13 on the entrance side is closed at the position where the powder bag 1 has entered the bag-sizing section 3, and the inside is sealed. The powder bag 1 is advanced by the roller conveyor 14, but as shown in FIG. 2, air injection pipes 11 are installed in the upper and lower portions of the air bag. If air is blown toward the air bag, the air shower blows off dust such as dust and dirt adhering to the surface of the powder bag 1, and the floating dust is forcibly applied to a dust collector installed outside from below the bag adjusting unit 3. It is sucked.
[0020]
During that time, the doors on both sides of the bag sizing section 3 are closed by the shutter 13, so that dust is not released to the outside. In addition, the injection pipe 11 may not only inject air in the vertical and vertical directions but also rotate left and right to change the air injection direction.
[0021]
The powder bag 1 cleaned by the air shower is subjected to planar rolling by the above-described rolling mechanism. When the upper surface of the powder bag 1 is grasped by the depareting robot 8 as described above, the central portion of the powder bag 1 may protrude upward in a chevron. In addition, the raw material may be shifted to one side in the powder bag 1, and a part of the raw material may swell in a mountain shape as shown in FIG.
[0022]
The rolling mechanism flattens the bulges and bulges 15 in a plane to make the raw material uniform in the powder bag 1 and to adjust the surface shape of the powder bag 1. For this reason, both ends of one compacting roller 12 having a length equal to or larger than the length of the long side of the powder bag 1 are rotatable along the traveling direction of the powder bag 1 by the two support arms 16. Hanged.
[0023]
Since the upper ends of the two arms 16 are rotatably connected to the housing forming the bag arranging section 3, the pressure roller 12 can also rotate in accordance with the arms 16, and the base can rotate to the housing. By pivotally connecting the rod end of an air cylinder 17 connected to the support arm 16 to the support arm 16, the rotation angle of the pressure roller 12 is regulated.
[0024]
When the powder bag 1 whose surface is finely cleaned by the air shower advances, the pressure roller 12 comes into contact with the upper surface of the powder bag 1. If the upper and lower surfaces of the powder bag 1 are flat, the powder bag 1 proceeds smoothly. As shown in the figure, when there is a raised portion 15 on the upper surface of the powder bag 1, the material is rolled by the pressure roller 12, so that the surface becomes flat, and the distribution of the raw material in the powder bag 1 becomes uniform.
[0025]
If the raised portion 15 is high, the powder bag 1 is caught by the pressure roller 12 so that the powder bag 1 cannot advance. However, the air in the air cylinder 17 is automatically released by the advance pressure of the powder bag 1, and as a result, the pressure The roller 12 can easily roll the raised portion 15 while rotating in the direction of arrow A.
Since the shutter 13 on the outlet side of the housing is opened at the time of rolling, the powder bag 1 is sent out to the outside by the roller conveyor 14 and reaches the standby space between the bag opening portion 5.
[0026]
As shown in FIGS. 3 to 5, the transfer device 4 is provided with support plates 19 at lower portions on both sides in the longitudinal direction of the flat rectangular frame 18, and three scrapers 20, 21 and 22 are provided between the support plates 19. Is openable and closable, and the entire transfer device 4 can reciprocate along the transfer direction of the powder bag 1 by a combination of the rack 23 and the pinion 24.
[0027]
The horizontally long plate-shaped scrapers 20, 21 and 22 have both ends bent at right angles to form connecting plates 20a, 21a and 22a, and each connecting plate 20a, 21a and 22a is rotatable on the support plate 19. Is connected to the shaft. The scraper 20 is located on the rightmost side in the drawing and faces the standby position of the powder bag 1. The scraper 21 is located substantially at the center of the transfer device 4. The scraper 22 is located on the leftmost side on the side opposite to the scraper 20.
[0028]
Each of the scrapers 20, 21, 22 is configured to rotate between a vertically closed state and a horizontally open state by operating a cylinder 25 attached to each of the connecting plates 20a, 21a, and 22a. . That is, the base of each cylinder 25 is fixed to the support plate 19 in a horizontal state. The upper ends of the connecting plates 20a, 21a of the scrapers 20, 21 and the tip of the rod of the cylinder 25 are rotatably connected, and by pulling the rod, the one-dot chain line from the vertical closed state shown by the solid line in FIG. To the horizontal open state shown in FIG.
[0029]
The scraper 22 rotatably connects the tip of the rod of the cylinder 25 to the lower part of the connecting plate 22a, and turns from a vertically closed state to a horizontally open state by extending the rod. Therefore, the scrapers 20, 21 and the scraper 22 open and close in the opposite directions. The height position when each of the scrapers 20, 21, 22 is opened horizontally is a height at which the powder bag 1 can pass.
[0030]
As described above, the entire transfer device 4 can be reciprocated by the combination of the rack 23 and the pinion 24. Racks 23 provided integrally on the both sides of the frame body 18 in parallel with the length of the frame body 18 are mounted on a plurality of rotating rollers 27 projecting inward from an external frame 26 surrounding both sides of the transfer device 4.
[0031]
The pinions 24 meshing with both racks 23 are fixed to both ends of one rotating shaft 28, and the rotating shaft 28 is driven to rotate by a motor 29 which can rotate in the reverse direction. Therefore, the rack 23 slides on the rotation roller 27 by the rotation drive of the pinion 24, so that the transfer device 4 reciprocates along the transfer direction of the powder bag 1. Since one end of the rotating shaft 28 is connected to the outer frame 26 via a bearing (not shown) and the motor 29 is fixed to the outer frame 26, the engagement between the rack 23 and the pinion 24 does not come off. The drive motor 29 is controlled by an encoder, and the transfer distance can be freely set according to the size of the powder bag 1 to reliably transfer the powder bag 1 to the center of the cutter line.
[0032]
The opening portion 5 forms an X-shaped cutter line (opening line) on the lower surface of the powder bag 1 along a diagonal line of the powder bag 1, and will be described in detail with reference to FIGS. 6 to 8. I do.
As shown in FIGS. 6 and 7, the bag opening unit 5 includes a cutter table 30 installed in parallel with the transfer surface of the powder bag 1 and a bag opening mechanism 31 installed below the cutter table 30. . An X-shaped cutter groove 32 is formed in the cutter table 30, and the powder bag 1 is fixed on the upper surface of the cutter groove 32 on the cutter table 30.
[0033]
The bag opening mechanism 31 includes a known rodless cylinder 33, a cutter 34 that can reciprocate in the horizontal direction along the rodless cylinder 33 and can move up and down by itself, and a pivot shaft 35. And a cylinder 36 which is turned around the center.
[0034]
Usually, the rodless cylinder 33 is located in a direction orthogonal to the direction in which the powder bag 1 is transferred. That is, in FIG. 7, the powder bag 1 is sent from the X arrow direction. When the powder bag 1 is transferred and reaches a predetermined position and stops, the rodless cylinder 33 is rotated by the cylinder 36 to be in a state parallel to one of the straight cutter grooves 32a of the cutter grooves 32 forming the X-shape (FIG. 7). Is indicated by a two-dot chain line).
[0035]
The turning shaft 35 is located immediately below the intersection of the cutter groove 32, and when the rodless cylinder 33 is parallel to the cutter groove 32a, the cutter 34 is located below the end of the cutter groove 32a. In this state, if the cutter 34 is raised by, for example, the lifting cylinder 37, the cutting edge pierces the lower surface of the powder bag 1.
[0036]
If the cutting edge of the cutter 34 is moved along the rodless thin lid 33 while piercing the powder bag 1, a cutter line having the same length as the entire length of the cutter groove 30 a is formed on the lower surface of the powder bag 1. Similarly, if the rodless cylinder 33 is rotated so as to match the other cutter groove 32b and the lower surface of the powder bag 1 is cut by the cutter 34, an X-shaped cutter line is formed on the lower surface of the powder bag 1. Will be.
Since the cutter groove 32 has such a small width that the cutting edge of the cutter 34 passes, the raw material does not fall off the cutter line.
[0037]
As the cutter knife 34, an ultrasonic cutter knife that does not generate paper dust can be used in addition to a normal knife. Further, for the rodless cylinder 33, the vertical slider 37, etc., a known ball screw may be used instead of the cylinder.
[0038]
After forming the X-shaped cutter line (opening line) on the lower surface of the powder bag 1 as described above, the powder bag 1 is sent to the next discharge unit 6. The discharge unit 6 is a closed space independent of the housing similarly to the cleaning unit 3 described above, and a mounting table 38 for the powder bag 1 is installed at the same plane height position as the cutter table 30 inside. Further, a holder 39 of the powder bag 1 is provided above and movably up and down by a cylinder 40.
Further, doors for the powder bag 1 are provided on both sides of the housing, and are normally opened and closed by a shutter 41.
[0039]
When the powder bag 1 whose lower surface is opened in an X-shape as described above is placed on a predetermined position of the mounting table 38, the holder 40 is lowered by the cylinder 40. The holding tool 39 is for holding the upper surface of the powder bag 1 and holding the powder bag 1 in a hollow state. For this reason, as shown in FIGS. A plurality of pairs are provided along the length direction.
[0040]
A holding claw 42 having a substantially semicircular shape by cutting out a part of the annular body is fixed to a rotating shaft 43 at a central portion, and the rotating shaft 43 can be rotated forward and backward by a rotating cylinder 44. Normally, the tip of the holding claw 42 that faces downward is located above the powder bag 1, and the tip is directed from the inside to the outside, that is, as shown by the arrow A, of the powder bag 1 fixed in a plane. It rotates from the upper surface toward the longer side.
[0041]
Therefore, when the holding tool 39 is lowered by the cylinder 40 to press the tip of the holding claw 42 against the upper surface of the powder bag 1 and the holding claw 42 is rotated outward, the tip of the holding claw 42 pierces the powder bag 1. It will protrude to the upper surface of the powder bag 1 through the inside. The powder bag 1 is held in a hooked state by the plurality of pairs of left and right holding claws 42 piercing the powder bag 1, so that the holding tool 39 may be raised by the cylinder 40. As the holding tool 39 is lifted, the cutter wire is expanded by the weight of the raw material filled in the powder bag 1, so that the raw material falls.
[0042]
The mounting table 38 which is horizontal in the normal state has two base plates that can be separated at the center and one end is rotatably supported by the housing, as shown in FIG. Is opened downward by the operation of the cylinder 45 connected to the base plate to form a chute.
[0043]
When the mounting table 38 is opened at the same time as the powder bag 1 is lifted by being gripped by the holder 39, the mounting table 38 serves as a sheet and guides the raw material to the lower hopper 46. When the raw material falls, the entrance is closed by the shutter 41, and the raw material does not scatter outside. When the discharge of the raw materials is completed, the shutter 41 on the outlet side may be opened and the empty bag may be taken out. When the raw material is discharged from the powder bag 1 in the hollow portion, the powder bag 1 may be blown, or air may be injected from a hose so that the raw material does not remain in the powder bag 1.
[0044]
When the raw material discharge from the powder bag 1 is completed by the above operation, the holding claws 42 rotate in the opposite direction to the above, so that the holding claws 42 come off from the upper surface of the empty bag, and the empty bag is closed horizontally. The weight falls on the table 38.
[0045]
The transfer of the powder bag 1, cleaning and sizing, opening of the bag (formation of a cutter line), discharge of raw materials, discharge of empty bags, and the like are all controlled by a computer, and are automatically and continuously processed. In particular, in order to send the powder bags 1 in the standby position to the bag opening section 5 and to send the opened powder bags to the discharge section 6, the powder bags 1 are intermittently connected by the transfer device 4 described above. Done in the work.
[0046]
Next, the intermittent continuous transfer of the powder bag 1 by the transfer device 4 will be described with reference to FIGS.
The transfer device 4 having the above-described configuration is usually located above the bag opening unit 5 and the discharge unit 6. As shown in (a), when the powder bag 1 reaches the standby position after the cleaning and bag preparation, the pinion 24 is driven by the motor 29, the rack 23 is run, and the transfer device 4 is passed through the space between the outer frames 26. 1 in the standby direction.
[0047]
At this time, since at least the scraper 20 is open upward, the powder bag 1 at the standby position as shown in (b) is stored in the transfer device 4. Next, when the scraper 20 is closed and the transfer device 4 is pulled back to the original position, the powder bag 1 is moved above the bag opening section 5 by the scraper 20 and stopped as shown in FIG. This stop position is directly above the cutter groove 32. The stop of the transfer device 4 at the forward position, the stop at the retreat position, and the like may be performed by stopping the motor 29 by detecting a sensor, and these operations are automatically managed by a computer similarly to other operations.
[0048]
Since the next powder bag 1 has been sent to the standby position as shown in (d), the transfer device 4 opens the scrapers 20 and 21 and moves forward, as shown in (e), the first powder bag. 1a and the next powder bag 1b enter the transfer device 4. In this state, if the scrapers 20 and 21 are closed and the transfer device 4 is returned to the original position, the powder bag 1a enters the discharge portion 6 and the powder bag 1b is placed on the open portion 5 as shown in FIG. Will be located. Therefore, the shutter 41 on the entrance side of the discharge unit 6 is open.
[0049]
The raw material is discharged from the first powder bag 1a, and the bag opening operation is simultaneously performed on the powder bag 1b. At this stage, since the next powder bag 1c has been sent to the standby position as shown in (g), if the transfer device 4 is advanced with all the scrapers 20, 21 and 22 opened, (h) ), The powder bag 1b and the powder bag 1c are located in the transfer device 4, and the first powder bag 1a (empty bag) is left on the mounting table 38 of the discharge unit 6.
[0050]
In this state, if all the scrapers 20, 21, and 22 are closed and the transfer device 4 is returned to the original position, the empty bag (the powder bag 1a) is pushed out by the scraper 22. At this time, since the exit side shutter 41 of the discharge section 6 is open, the empty bag is discarded outside.
[0051]
The powder bag 1b is located in the discharge unit 6, and the powder bag 1c is located on the bag opening unit 5, and the respective processes are performed simultaneously.
Since the new powder bag 1d is at the standby position, if all the scrapers 20, 21, and 22 are opened and moved forward, the same state as the above (h) is obtained. Opening of the bag 1, discharge of the raw material, and disposal of the empty bag are performed intermittently and continuously.
[0052]
That is, the scraper 20 has a function of sending the powder bag 1 at the standby position to the bag opening unit 5, and the scraper 21 has a function of sending the opened powder bag 1 to the discharge unit 6. In addition, the scraper 22 has a function of sending an empty bag from which the raw material has been discharged to the outside.
[0053]
【The invention's effect】
According to the present invention described above, the powder bag 1 whose transfer direction has been adjusted by the alignment unit 2 cleans dust adhering to the outer surface in the sealable bag adjustment unit 3 by air injection, and removes dust. Since the powder bag 1 is sucked into the external dust collector, the powder bag 1 can be sent to the next step in a clean state. Further, since the outer shape of the powder bag 1 is adjusted by the rolling mechanism, the upper and lower surfaces of the powder bag 1 are in a flat state, so that the transfer process can be performed smoothly.
[0054]
The transfer device 4 can send the powder bag 1 after cleaning to the bag opening unit 5 by the openable and closable scrapers 20 and 21, and can send the powder bag 1 after bag opening to the material discharge unit 6. Since the empty bags after the discharge of the raw materials can be discharged to the outside, the feeding of two powder bags 1 and the feeding of one empty bag can be automatically processed simultaneously. Therefore, operations such as cleaning, bag opening, discharging, and discharging of the powder bag 1 can be continuously performed mechanically, and the processing efficiency can be improved.
[0055]
In addition, since the powder bags 1 are placed at the determined positions by the transfer device 4, X-shaped open lines are formed on the lower surfaces of all the powder bags 1 in the state determined by the cutter knife 34, and the discharge unit 6 In (2), since a predetermined portion of the powder bag 1 is gripped by the holding claws 42, when the powder bag 1 is lifted, an average pressure is applied to the lower surface of the powder bag 1 and the triangular shape is formed by the open line. Since the two pieces of bag open at the same time, the raw material is discharged at one time. Moreover, the raw material adhering to the inner surface of the powder bag 1 is also peeled off by the discharge vibration of the raw material.
[Brief description of the drawings]
FIG. 1 is a front view schematically showing the entire bag opening apparatus of the present invention.
FIG. 2 is a front view of a cleaning unit.
FIG. 3 is a perspective view of a transfer device.
FIG. 4 is a plan view of the transfer device.
FIG. 5 is a front view of the transfer device.
FIG. 6 is a perspective view of a bag opening section.
FIG. 7 is a plan view of a bag opening section.
FIG. 8 is a side view of a bag opening section.
FIG. 9 is a front view of a discharge unit.
FIG. 10 is a plan view of a bag opening section.
FIG. 11 is an explanatory view of a transfer operation of the powder bag by the transfer device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Powder bag 2 Alignment part 3 Bag sizing part 4 Transfer device 5 Bag opening part 6 Ejection part 7 Pallet 8 Depallet robot 9 Belt conveyor 10 Alignment cylinder 11 A injection pipe 12 Bag sizing roller 13 Shutter 14 Roller conveyor 15 Raised portion 16 Support arm 17 Cylinder 18 Rectangular frame 19 Support plate 20 Scraper 20a Connection plate 21 Scraper 21a Connection plate 22 Scraper 22a Connection plate 23 Rack 24 Pinion 25 Cylinder 26 External frame 27 Rotary roller 28 Rotary shaft 29 Motor 30 Cutter table 31 Bag opening mechanism 32 Cutter groove 33 Rodless cylinder 34 Cutter knife 35 Rotating shaft 36 Rotating cylinder 37 Lifting cylinder 38 Mounting table 39 Holder for powder bag 40 Lifting cylinder 41 Shutter 42 Holding claw 43 Rotating shaft 44 Rotating cylinder 4 Table opening-closing cylinder 46 Hopper

Claims (4)

A cleaning mechanism that fills and seals raw materials such as powder and microparticles, and blows off dust and dirt adhering to the surface of the powder bag 1 with a predetermined transfer direction by air injection, and a rolling mechanism that adjusts the outer surface shape. A bag arranging section 3 having a bag, a transfer device 4 for intermittently transferring the powder bag 1 having passed through the bag arranging section 3 to the next process, and a bag opening section 5 for opening the lower surface of the powder bag 1 in an X-shape. It comprises a discharge unit 6 for discharging the raw material from the opened powder bag 1, and the bag arranging unit 3, the transfer device 4, the bag opening unit 5 and the discharge unit 6 are provided close to each other along the transfer direction of the powder bag 1. Powder bag opening device. The transfer device 4 installed so as to be able to reciprocate along the transfer direction of the powder bag 1 is provided with a scraper 20 for feeding the powder bag 1 after the bag preparation into the bag opening section 5 and a discharging unit 6 for the powder bag 1 after the bag opening. The powder bag opening apparatus according to claim 1, further comprising a scraper (22) for feeding in and a scraper (22) for sending out an empty bag after discharging the raw material to the outside. The bag opening section 4 is provided with a cutter 34 which can be moved up and down with respect to the cutter groove 32 in a lotless cylinder 33 which can be turned and stopped along the cutter groove 32 below the cutter table 30 having the X-shaped cutter groove 32. 2. The powder bag opening apparatus according to claim 1, wherein the apparatus is provided so as to be able to reciprocate. The discharge unit 6 has a mounting table 38 that can be pivotally released downward from the center in the enclosed space, and a holder 39 that holds the powder bag 1 above the mounting table 38 to enable the discharge of the raw material. The powder bag opening apparatus according to claim 1, wherein the powder bag is vertically movable.

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