JPH081123A - Wrapping bag cleaning device and its wrapping bag transport mechanism - Google Patents

Abstract

PURPOSE:To minimize space in a level direction and at the same time, clean a wrapping bag easily. CONSTITUTION:A chain guide 43 and a hanger guide are installed in the form of a loop perpendicularly on a machine frame 41 of a wrapping bag transport mechanism 25 suspended on a bracket 22, then a chain 45 with a dog 51 which orbits endlessly is attached to a chain guide 43, and a hanger 24 for suspending a wrapping bag B is installed on a hanger guide in such a manner that the hanger 24 can freely move on the periphery. In addition, a patting mechanism 32 is suspended near a standby position S3, and an air filtration mechanism 33 is installed below the patting mechanism 32. The wrapping bag B suspended by the hanger 24 with the mouth part facing downward at a standby position S1 has the mouth part fixed to a duct 85 at the standby position S3. The outer side of the wrapping bag is patted by the patting mechanism 32 and the interior of the bag is cleaned by the air filtration mechanism 33. The wrapping bag B thus cleaned is delivered to a trolley conveyor 34 at a standby position S5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging bag cleaning device for cleaning a packaging bag for packaging powdered or granular materials such as grains, feeds and cement with air, and a packaging bag conveying mechanism therefor.

[0002]

2. Description of the Related Art In a conventional packaging bag cleaning apparatus, for example, as shown in FIG. 10, straight conveying mechanisms 1 to 4 are arranged so as to form a horizontal rectangle, and these conveying mechanisms 1 to 4 are connected. A plurality of mouthpieces 9 each provided with a direction changing mechanism 5 to 8 and provided with a mechanism for gripping the packaging bag B.
However, they are transported in a horizontal loop shape by the transport mechanisms 1 to 4 and the direction changing mechanisms 5 to 8.

The transport mechanism 1 of the transport mechanisms 1 to 4 includes a mounting mechanism 10 for mounting the packaging bag B on the mouthpiece 9 and an air cleaning mechanism for cleaning the packaging bag B attached to the mouthpiece 9 and transported. 11 and 11 are installed. In addition, the transport mechanism 3
The filling mechanism 12 that fills the washed packaging bag B with the powder and granules, the reversing mechanism 13 that reverses the packaging bag B that is filled with the powder and granules, and the inverted packaging bag B is carried out to the outside. The transport mechanism 14 and the transport mechanism 14 are sequentially installed. Further, a transport mechanism 15 for transporting the unwashed packaging bag B is installed in a horizontal loop shape.

In such a conventional packaging bag cleaning apparatus, an uncleaned packaging bag B transported by the transport mechanism 15 is used.
Is removed from the transport mechanism 15 in the vicinity of the attachment mechanism 10 and attached to the mouthpiece 9 by the attachment mechanism 10.
The packaging bag B attached to the mouthpiece 9 is conveyed to the air cleaning mechanism 11, where it is inverted and then the inside is cleaned with air. The washed packaging bag B is turned over again and is conveyed to the filling mechanism 12 while being turned by the direction turning mechanisms 5 and 6 and filled with the powder and granules. After that, the mouthpiece 9 is removed from the packaging bag B, the mouth portion of the packaging bag B is bound, then inverted by the reversing mechanism 13, and conveyed to the outside by the transport mechanism 14.

[0005]

However, in the above-mentioned conventional example, since the transport mechanisms 1 to 4 are arranged in a loop in the horizontal direction, a large space is occupied only in the horizontal direction, and the vertical direction is occupied. Has a problem in that it wastes space. Further, since the base 9 requires a mechanism for gripping the packaging bag B, providing a large number of bases 9 causes a problem that the cost becomes high. In addition, the air cleaning mechanism 11 and the filling mechanism 12 are used as the transport mechanisms 1 and 3.
Since the transfer mechanisms 1 to 4 must be installed at a high position, it is not easy to attach the packaging bag B to the mouthpiece 9 transferred at a high position. Furthermore, when cleaning the packaging bag B, the packaging bag B has to be inverted, then washed, and again after cleaning, which causes a problem that the structure for that becomes complicated and the cost increases. is there.

An object of the present invention is to solve the above-mentioned problems, to save a space in the horizontal direction, to easily attach a packaging bag, and to provide a packaging bag cleaning apparatus and a packaging bag transporting mechanism therefor at a low cost. To do.

[0007]

A packaging bag cleaning apparatus according to a first aspect of the present invention for achieving the above object comprises a suspending means for suspending a packaging bag, and the suspending means in a loop shape in a substantially vertical direction. It has a carrying mechanism for carrying, a putting mechanism for hitting the packaging bag carried by the carrying mechanism from the outside, and an air cleaning mechanism for cleaning the inside of the packaging bag with air, and the suspending means is provided in the carrying mechanism. It is characterized in that a descending portion for descending to a predetermined height is provided.

Further, the packaging bag conveying mechanism according to the second invention is
A machine frame having a horizontally installed horizontal part and a hanging part hanging downward from a part of the horizontal part, and a packaging bag provided around the machine frame so as to be looped in a vertical loop shape. The suspension means includes a suspension means for suspending the suspension means, and a transportation means for transporting the suspension means, which is provided around the machine frame in a loop shape in a vertical direction so as to be rotatable, and the suspension means is engaged with the transportation means. It is characterized by making it circulate.

[0009]

In the packaging bag cleaning apparatus according to the first aspect of the present invention having the above-described structure, since the transport mechanism is provided with the descending portion, the packaging bag is suspended by the suspending means at this descending portion. The packaging bag transported by the transport mechanism is hit by the putting mechanism to remove the residue inside, and the air cleaning mechanism cleans the packaging bag by sending air into the packaging bag.

In the packaging bag transporting mechanism according to the second aspect of the invention, the transporting means engages the suspending means and circulates around the machine frame in a loop shape in the vertical direction. Therefore, on the upper surface of the horizontal portion of the machine frame. The conveying means conveys the suspending means in the horizontal direction, and lowers the suspending means to a predetermined height in the hanging portion. The transportation means lifts the packaging bag attached to the suspension means at the hanging portion to the lower surface of the horizontal portion of the machine frame, further conveys the lower surface of the horizontal portion in the horizontal direction, and returns it to the upper surface of the horizontal portion.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the embodiments shown in FIGS. FIG. 1 is a schematic side view of this embodiment, in which a pedestal 22 constructed on a fixed portion 21 such as the ground is
A packaging bag conveying mechanism 25 is hung to be driven by the driving means 23 to cause the hanger 24 to circulate in the direction A. Standby positions S1 to S6 for waiting the hanger 24 are provided at predetermined positions of the packaging bag transport mechanism 25, and these standby positions S1 to S6 are provided.
The dog opening / closing mechanism 26 for stopping the circulation of the hanger 24
31 are provided respectively. Below the dog opening / closing mechanism 28, a putting mechanism 32 for hitting the packaging bag B suspended and conveyed by the hanger 24, and an air cleaning mechanism 33 for cleaning the inside of the packaging bag B with air are installed. In addition, a trolley conveyor 34 that circulates in the direction C is installed near the dog opening / closing mechanism 30, and the washed packaging bag B is passed to the trolley conveyor 34.

Here, at the standby position S1, the packaging bag B is placed on the hanger 2
4, a standby position S2 is a standby position before cleaning the packaging bag B, a standby position S3 is a position for cleaning the packaging bag B, and a standby position S4 is a standby position for passing the packaging bag B to the trolley conveyor 34. The position and the standby position S5 are positions where the packaging bag B is delivered to the trolley conveyor 34, and the standby position S6 is a position where the packaging bag B is put on standby before being attached to the hanger 24.

2 to 4 are perspective views showing the central portion, the right end portion and the left end portion of the packaging bag conveying mechanism 25, respectively.
FIG. 5 is a sectional view taken along the line D-D of FIG. Machine frame 4
The reference numerals 1 and 42 are suspended from the gantry 22 so as to face each other substantially horizontally and in parallel with each other. These machine frames 41, 42
Are horizontal portions 41a and 42a that are suspended substantially horizontally, hanging portions 41b and 42b that are downwardly suspended from one end of the horizontal portions 41a and 42a, and horizontal portions 41a and 42a.
Tension part 41 fixedly adjustable in the longitudinal direction from the other end of
It is composed of c and 42c. The chain guides 43, 4 are provided on the outer peripheries of the machine casings 41, 42 thus configured.
4 are provided in parallel with each other so as to form vertical loops, and endless chains 45 and 46 are attached to these chain guides 43 and 44, respectively.
.About.50a and 47b to 50b are attached so as to be freely rotatable.

For example, 64 dogs 51 that engage with the hanger 24 are attached to the chains 45 and 46. The dog 51 includes brackets 51a and 51b sandwiching both sides of the chains 45 and 46, and roller shafts 51c and 51d connecting the brackets 51a and 51b. One roller shaft 51c is coupled to the chains 45 and 46, The dog 51 revolves around the chains 45 and 46. Brackets 51a and 51b near the other roller 51d are provided with pressing portions 51e and 51f that press the shaft 24a of the hanger 24, respectively.

The drive means 23 for driving the chains 45 and 46 in a circular manner is installed on the side of the tension portions 41c and 42c of the machine casings 41 and 42, and the motor base 52 installed on the machine casings 41 and 42 has a drive motor. 53 is placed and the output of the drive motor 53 is transmitted through the interlocking shaft 54 by the combination of the chain sprocket and the roller chain.
7b, and the chains 45 and 46 are driven in synchronization.

Hollow bar-shaped hanger guides 55 and 56 are provided around the machine frames 41 and 42 along the insides of the chain guides 43 and 44. The hanger guides 55, 56 include, for example, a 6-type hanger 2 for suspending the packaging bag B.
4 is attached so that it can freely circulate. That is, the hanger guides 55, 56 include three rollers 57a, 57b, 57.
A hanger holder 57 composed of c and a bracket 57d is rotatably attached, and the hanger holder 57 facing the dog 51 passes through the roller 57a and the bracket 57d.
A shaft 24a extending up to is supported, and a hanger 24 is suspended from the shaft 24a.

The tension portions 41c, 4 of the machine casings 41, 42 are
2c is adjusted by being driven by a cylinder 58. A hook plate 24b is attached to the hanger 24 so as to be biased diagonally upward and rearward with respect to the traveling direction, and the rope Br of the wrapped packaging bag B is securely held and pulled backward. If it happens, it will come off easily.

6 and 7 are sectional views for explaining the construction and operation of the dog opening / closing mechanisms 26-31. A bracket 62 having a guide rail 61 is fixed to the outside of the machine frame 41, and the guide rail 61 has a vertical portion 63 a and a horizontal portion 63.
An arm 63 having b is engaged by a cylinder 64 slidably in the direction E. On the horizontal portion 63b of the arm 63, guide means 65 for guiding the brackets 51a and 51b of the dog 51 away from the shaft 24a of the hanger 24 is provided. The guide means 65 includes a guide plate 65a for pressing and guiding the roller shaft 51d of the dog 51 upward, and brackets 51a and 51b of the dog 51.
Of the guide plates 65b that open the upper surface of the
Bracket 65c for fixing a and 65b so as to face each other vertically
It consists of and.

A braking means 66 for braking the hanger holder 57 is provided at the tip of the horizontal portion 63b. The braking means 66 includes a case 66b movably attached to the horizontal portion 63b of the arm 63 below the hanger holder 57 via a coil spring 66a, and a case 6b.
6b and a rubber 66c as a braking member fixed inside.

Here, when the arm 63 of the dog opening / closing mechanism 26-31 is driven by the cylinder 64 to move up, the guide plate 65a moves up to guide the roller shaft 51d of the dog 51 upward, as shown in FIG. Moreover, the guide plate 65b releases the upper surfaces of the brackets 51a, 51b to release the brackets 51a, 51b.
51b is removed from the shaft 24a of the hanger 24. At the same time, the rubber 66c of the braking means 66 presses the roller 57a of the hanger holder 57, restrains its rotation, and stops the movement of the hanger 24. On the other hand, when restarting the hanger 24, the arm 63 may be lowered by the cylinder 64.

FIG. 8 is a front view of the putting mechanism 32, and two putting mechanisms 32 are suspended from the pedestal 22 so as to sandwich the packaging bag B conveyed to the standby position S3. That is, the motor base 7 is attached to the frame 22 via the support frame 71.
2 is suspended, and a bracket 73 is attached to the motor base 72.
A shaft 76 of a propeller-like hitting arm 75 that hits the outside of the packaging bag B is supported via the pillow unit 74. The striking arm 75 is driven by a drive motor 77 installed on the motor base 72 via a roller chain and a sprocket.

FIG. 9 is a perspective view of the air cleaning mechanism 33.
The air cleaning mechanism 33 is installed on the fixed portion 21 below the putting mechanism 32. A washing box 83 having an inspection door 82 on the base 81 fixed to the fixed portion 21.
Is installed by four bolts 84 so that its height can be adjusted. A duct 85 for covering the mouth of the packaging bag B is provided in the upper part of the washing box 83, and a canvas 86 for guiding air into the packaging bag B is arranged in the duct 85 at predetermined intervals. The upper end of the canvas 86 is located inside the packaging bag B, and the other end is connected to a blower (not shown). Also,
The washing box 83 is connected to a collector (not shown).

Further, guide rails 87 are fixed to both sides of the washing box 83. Sliders 88 are slidably attached to the guide rails 87 in the direction F, respectively. Brackets 89 are fixed to the sliders 88, and the ducts 8 are attached to the brackets 89.
Two clamps 90 for gripping the packaging bag B, which is put on the outer periphery of 5, are attached to be openable and closable in the direction G, respectively. Here, the clamp 90 is driven by a clamp cylinder 91 fixed to a bracket 89, and the clamp cylinder 91 is driven by a slider cylinder 92 fixed to a cleaning box 83.

Each of the mechanisms constructed as described above is connected to a control circuit so as to perform a series of related operations while receiving instructions in sequence. That is, at the standby position S1, the dog opening / closing mechanism 26
Disengages the hanger 24 from the dog 51 and
To stop. The packaging bag B is manually hung on the hanger 24 with the mouth down. When receiving the acceptance signal from the next standby position S2, the dog opening / closing mechanism 26 engages the hanger 24 and the dog 51.

When the dog 51 conveys the hanger 24 to the standby position S2, the dog opening / closing mechanism 27 causes the hanger 24 and the dog 5 to move.
The engagement of 1 is released, and the hanger 24 is stopped. Standby position
When receiving the signal of S3, the dog 51 conveys the hanger 24 to the standby position S3. At this position, the bag mouth of the packaging bag B is manually covered with the duct 85.

At this time, the clamp 90 is in a position opened by the cylinder 91 and separated from the duct 85 by the slider cylinder 92. After covering the bag 85 with the bag mouth of the packaging bag B, the slider cylinder 92 is operated to move the clamp 90 to both sides of the bag mouth, and subsequently the clamp cylinder 91 is operated to close the clamp 90. As a result, the clamp 90 causes the bag mouth of the packaging bag B to pass through the duct 85.
It has been pressed to the outer periphery of.

In this state, air is blown into the packaging bag B through the canvas 86, and at the same time, the putting mechanism 32 is used.
The drive motor 77 is operated to rotate the hitting arm 75. As a result, the residue inside the packaging bag B is
And falls into the washing box 83 from between the canvas 86 and the duct 85.

When the cleaning of the inside of the packaging bag B is completed in this way, the dog opening / closing mechanism 28 operates and the dog 51 engages with the hanger 24 to convey the hanger 24 to the standby position S4.
Then, after receiving the acceptance signal of the standby position S5, the dog 5
1 conveys the packaging bag B to the standby position S5.

Here, the rope Br of the packaging bag B is hooked by the hook 92 of the trolley conveyor 34 moving in the direction C, and the packaging bag B is delivered to the trolley conveyor 34.
At this time, the hook plate 24b of the hanger 24 rotates against the biasing force, and the rope Br is easily passed to the hook 92 of the trolley conveyor 34. The dog 51 is engaged with the hanger 24 from which the packaging bag B has been removed, and the hanger 24 is moved to the standby position S6 by a signal from, for example, an electronic switch that detects the presence or absence of the packaging bag B.
Transport to. This completes one sequence.

In the above-mentioned embodiment, since the packaging bag B is hung on the hanger 24 with its mouth portion facing downward, it is not necessary to invert the packaging bag B during cleaning, and the entire structure can be simplified. Further, since the dog opening / closing mechanisms 26 to 31 for releasing the engagement between the hanger 24 and the dog 51 are provided, the hanger 24 can be accurately stopped at a predetermined waiting position, and the work efficiency can be improved. Further, the manufacturing cost can be reduced because the conventional cap mechanism is not required.

[0031]

As described above, in the packaging bag cleaning device according to the first aspect of the present invention, since the suspending means is conveyed in a loop shape in a substantially vertical direction, the space in the horizontal direction is reduced to save a wasteful space. You can Further, since the transport mechanism is provided with the descending portion for lowering the suspension means to a predetermined height, it is not necessary to lift the packaging bag to a high position, and the packaging bag can be easily suspended by the suspension means.

The packaging bag conveying mechanism according to the second invention is
Since the suspending means can be conveyed horizontally in the horizontal part and lowered to a predetermined height in the hanging part, the space in the horizontal direction can be reduced and the work of attaching the packaging bag to the suspending means is easy. You can

[Brief description of drawings]

FIG. 1 is a schematic side view of the present embodiment.

FIG. 2 is a perspective view of a central portion of a packaging bag transport mechanism.

FIG. 3 is a perspective view of a right end portion of the packaging bag transport mechanism.

FIG. 4 is a perspective view of a left end portion of the packaging / conveying mechanism.

5 is a cross-sectional view taken along the line DD of FIG.

FIG. 6 is a diagram illustrating the configuration and operation of a dog opening / closing mechanism.

FIG. 7 is a diagram illustrating the configuration and operation of a dog opening / closing mechanism.

FIG. 8 is a side view of a putting mechanism.

FIG. 9 is a perspective view of an air cleaning mechanism.

FIG. 10 is a plan view of a conventional example.

[Explanation of symbols]

 24 Suspending Means 25 Packaging Bag Conveying Mechanism 26-31 Dog Opening / Closing Mechanism 32 Putting Mechanism 33 Air Cleaning Mechanism 34 Trolley Conveyor 41, 42 Machine Frame 43, 44 Chain Guide 45, 46 Chain 51 Dog 55, 56 Hanger Guide 66 Braking Means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Eiji Yoshiya 21-6 Nakase, Samukawa-cho, Takaza-gun, Kanagawa Prefecture (72) Inventor Kikuo Yoshida 4-3154-9, Ono, Ichikawa-shi, Chiba

Claims (4)

[Claims] 1. A suspension means for suspending a packaging bag, a transport mechanism for transporting the suspension means in a loop shape in a substantially vertical direction, and a putting mechanism for tapping the packaging bag transported by the transport mechanism from the outside. An air cleaning mechanism for cleaning the inside of the packaging bag with air, and the transport mechanism is provided with a descending portion for lowering the suspension means to a predetermined height. 2. The packaging bag cleaning device according to claim 1, wherein the packaging bag is suspended in advance by the suspension means with the mouth portion facing downward. 3. A machine frame having a horizontally installed horizontal portion and a hanging portion vertically extending downward from a part of the horizontal portion, and a vertical loop around the machine frame. The suspension means for suspending the provided packaging bag, and the transportation means for transporting the suspension means by being provided around the machine frame in a loop shape in a vertical direction so as to be rotatable, and the suspension means and the transportation means. A packaging bag conveying mechanism, characterized in that the packaging bag conveying mechanism is adapted to circulate. 4. The packaging bag carrying mechanism according to claim 3, further comprising means for releasing the engagement between the suspension means and the carrying means.