JPH0543579B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a packer device for powder or granular material, and particularly to a packer device for powder or granule material suitable for bagging grains.

<Prior art and problems> A long, flat film-shaped tube is cut and sealed into a certain longitudinal dimension to form a bag of a certain size, and a certain amount of powder or granules is put into the bag. BACKGROUND OF THE INVENTION Packaging devices for packing powder and granular materials into bags have been conventionally known.

However, in these conventional packer devices for powder and granular materials, all mechanisms such as the bag-making mechanism that cuts the tubes are fixed, so it is necessary to change the type (size) of the tube set in the packer device. For example, when removing a small tube that has been set up until now and resetting it to a wider tube to form a larger bag,
As the width changes, the length (position) of cutting and sealing also changes, so the assembly position of the bag making mechanism etc. has to be changed each time, which is very troublesome. Therefore, it is fine to use only one size of tube to bag a certain amount of powder or granule continuously, but it is better to use multiple types of tubes to bag various amounts of powder or granule. In the case of high-variety, low-volume production, work efficiency inevitably decreases. The present invention has been made by focusing on such conventional technology, and it is an object of the present invention to provide a packer device that can solve the above-mentioned problems.

<Means for Solving the Problems> In order to achieve the above-mentioned object, the powder packer device according to the present invention has a tube in the form of a long flat film that is carried in the longitudinal direction, so that the front end of the tube is in a predetermined position. Each time a bag is reached, it is cut in the longitudinal direction from this predetermined position and the bottom is sealed to form a bag of a predetermined size. This bag making device is composed of a powder and granule loading device that charges the powder and seals the opening; the bag making device; a bag size discrimination sensor mechanism that is movable and detects the pitch between marks printed in advance on the edge of the tube and determines the longitudinal dimension from the predetermined position; and a signal from the bag size discrimination sensor mechanism. A cutter for cutting the tube in the longitudinal direction according to the length, a heat-sealing body for the bottom seal, a bag size discrimination sensor mechanism, a moving means for moving the entire cutter and the heat-sealing body in the longitudinal direction of the tube; a bag-making device comprising: a guide belt that follows the movement of the cutter and the heat-sealing body and constantly forms a guide surface for carrying in the tube at the entry and exit sides of the cutter and the heat-sealing body; A suction pad mechanism that is positioned to suction the opening of the bag from both sides, and an air nozzle mechanism that blows air toward the opening of the bag that has been suctioned by the suction pad mechanism.
The powder and granular material charging device comprises: a chute mechanism for powder and granular material charging having a variable input port whose opening amount can be freely adjusted according to the width size of the bag; and a bag formed by the bag making device. A swing arm mechanism that moves the opening of the bag below the variable input port of the chute mechanism and sets it in an upright position, and an expander claw and a temporary holding body apply tension to the vicinity of the sealing part that is planned to be attached to the opening of the bag. A sealing mechanism seals the opening of the bag after the powder is loaded, and the loading position of the receiving plate is determined for each bag size by pulse control corresponding to the signal from the bag size discrimination sensor mechanism. In addition, the bag is provided with a pedestal mechanism in which the transfer position of the receiving plate is constant and the receiving plate is inclined in order to transfer the bag to another at this transfer position.

<Example> Hereinafter, a preferred example of the powder packer device according to the present invention will be described based on the drawings.

The packer device 1 according to this embodiment includes a bag making device 2, a polished rice charging device 3 as a "powder charging device"
It is made up of. In other words, the bag making device 2 is made up of a long bag. That is, the bag making device 2 makes an independent bag 5 from a tube 4 in the form of a long flat film, and the polished rice 6 is charged into the bag 5 by the rice charging device 3 and packed into the bag. The structure and mechanism will be explained below.

-Tube- First, the long flat film-shaped tube 4 processed by the bag making device 2 will be explained. The sizes of the bags 5 used for packing white rice 6 are limited to a certain number of sizes, ranging from 1Kg to 5Kg, 10Kg, and 15Kg, and tubes 4 of width W according to each type are used. is used. Then, cut the tube into a certain longitudinal dimension L.
It is sealed to form the various bags mentioned above,
The longitudinal dimension L for cutting is also uniquely determined according to the width W of the tube 4. tube 4
Marks 9 are printed on the edge portion 7 of the tube 4 at fixed positions in the width direction (Z direction in the figure) from the edge 8 of the tube 4 at pitches P corresponding to the longitudinal dimension L to be cut. In other words, if the pitch P between the marks 9 is determined, the longitudinal dimension L and the width size W
Since the size of the bag 5 to be formed can also be determined automatically, the size of the bag 5 to be formed can be determined. This mark 9 is detected by an optical sensor 10 as a "bag size discrimination sensor mechanism" to be described later, and other mechanisms such as the bag making device 2 are controlled by a signal (information) according to the size of the bag 5 to be formed. (See Figures 1 and 2). Incidentally, the size of the bag 5 to be formed may be determined by detecting the pitch between both edges 8.

-Bag making equipment- Next, the bag making device 2 will be explained.

The bag making device 2 includes a take-up roll 11 and a bag making mechanism 1.
2, a suction pad mechanism 13, and an air nozzle (air nozzle mechanism) 14.

Take-up Roll (FIG. 2) Reference numeral 11 denotes a take-up roll which freely winds up and stores the tube 4 in the form of a long flat film made of synthetic resin.

Bag-making mechanism (FIG. 3) 12 is a bag-making mechanism mounted and fixed on a trolley 16 that can slide freely on rails 15 in the front and rear directions (X and Y directions in the figure). This truck 16 is connected via a fixing nut 86 to a screw shaft 88 which is rotatably driven by a motor 87 serving as a "moving means", so that it can slide freely. A guide belt 18 with a spring 17 is provided before and after the bag making mechanism 12 and is looped around a plurality of rotating rollers.
are connected to each other so as to follow the movement of the bag making mechanism 12. Therefore, a guide belt 18 is formed in front and behind the bag-making mechanism 12 in a flat state without loosening along the direction of movement thereof, and this flat portion serves as a guide surface (movement reference surface) of the tube 4 as described later. Become. The tube 4 is guided by the guide belt 18 to be accurately positioned at the entrance of the bag making mechanism 12. Incidentally, instead of the guide belt 18, convex type belts may be provided before and after the bag making mechanism 12, respectively. Further, the movement of the bag making mechanism 12 is controlled by a signal (information) from a pulse generator 19, which will be described later, and which is built into the bag making mechanism 12.

The structure of the bag making mechanism 12 itself is shown in FIG.

Reference numeral 20 denotes a pair of upper and lower feed rollers. A plurality of spring belts 21 for feeding the tube 4 are wound around the feed rollers 20, and one end of the feed roller 20 rotates together with the feed roller 20. A pulse generator 19 that generates a number of pulses corresponding to the amount of rotation of the feed roller 20 is attached. This number of pulses is used to determine various bag sizes, as will be described later.

22 is a cutter, and the upper and lower blades cut tube 4.
It is cut by sandwiching it.

Reference numeral 23 denotes a heat-sealing body, which can weld the tube 4 in the width direction by sandwiching the tube 4 between the heating section 24 on the lower side and the receiving section 25 on the upper side, thereby forming the bottom of the bag 5.

Reference numeral 26 denotes a fine needle for making holes, which descends into each gap between the plurality of spring belts 21 to form a plurality of deaeration holes along the width direction of the tube 4.

The vertical movements of the cutter 22, the heat seal body 23, and the fine needle 26 are simultaneously performed by the expansion and contraction of the cylinder 27 disposed below.

Reference numeral 10 denotes an optical sensor, which is composed of an edge detection sensor 90 for detecting the edge 8 of the tube 4 and a mark detection sensor 91 for detecting the mark 9. The mark detection sensor 91 includes a light emission detection section 28 on the upper side (the side corresponding to the surface of the tube 4 on which the mark 9 is printed), a reflection section 29 on the lower side, and a light source section 3.
It is a reflective type consisting of 0.
That is, the light beam emitted from the light emission detecting section 28 optically connected to the light source section 30 once passes through the tube 4 and is reflected by the lower reflecting section 29. Then, this reflected light beam passes through the tube 4 again and returns to the original light emission detection section 28, and the mark 9 on the tube is detected by comparing the light amount of the returned light beam with the light emission amount. Further, the edge detection sensor 90 is composed of a light emission detection section 92 and a light source section 93, and detects the edge 8 by detecting the light reflected on the surface of the tube 4. Note that the light emission detection section 28, reflection section 29, and light emission detection section 92 of the optical sensor 10 are
The tube 4 can also be attached upside down depending on the side on which the mark 9 is printed.

The light emission detection unit 28 is fixed to a frame 31 that is movable in the width direction of the tube 4 (Z direction in the figure). A rack 32 is attached to the lower surface of the frame 31, and when the rack 32 engages with a pinion 34 rotated by a motor 33, the frame 31 can be moved back and forth in the width direction (FIGS. 5 and 6).
The movement and mechanism of forming the bag 5 from the tube 4 by the bag making mechanism 12 as described above will be described later.

Suction pad mechanism (Figures 7 and 8) 13 is the suction pad mechanism, and the bag making mechanism 12
By suctioning the vicinity of the opening 35 of the bag 5 formed by the method from above and below (front and back), the opening 35 is widened. 36 is an air cylinder that moves a movable frame 37 having a square shape up and down. Above the movable frame 37, there is provided an erection frame 39 that is biased downward by a spring 38 and can be moved up and down.This erection frame 39 has two upper suction pads 40 and two upper rubber legs. 41 is placed facing downward. 42 is a fixed frame, which has two lower suction pads 43 corresponding to the two upper suction pads 40, and two on the outside thereof.
Two sliding frame suction pads 44 and two lower rubber legs 45 corresponding to the two upper rubber legs 41 are arranged upward. These two lower suction pads 43
are arranged with a slight positional shift from each other with respect to the two upper suction pads 40, and can protrude relatively upward from a sliding frame 47 supported by a spring 46. The sliding frame suction pad 44 is arranged slightly below the lower suction pad 43.

Air Nozzle Mechanism (FIGS. 7 and 8) An air nozzle 14 is an "air nozzle mechanism" and is attached to the tip of a swing arm 48 that swings in synchronization with the movable frame 37. The center of the swing arm 48 is rotatably supported by the fixed frame 42, and the other end has a long hole 49.
is formed. A pin 50 provided on the movable frame 37 is slidably engaged in the elongated hole 49. Therefore, the air nozzle 14 is
As the upper suction pad 40 descends, it rises, and the upper and lower suction pads 40 and 43 clamp and suction the opening 35 of the bag 5, and are positioned close to the opening 35 of the bag 5 at the same time. and air to opening 3
5 to more completely expand the opening 35 by the upper suction pad 40 and the lower suction pad 43. Further, since the air nozzle 14 descends as the upper suction pad 40 rises, it does not interfere with the swing arm 51, which will be described later.

- Polished rice charging device - Next, the polished rice charging device 3 as a "powder charging device" will be explained. This polished rice input device 3 is
A swing arm 51, a chute mechanism 52 for introducing polished rice, an expander mechanism 53, and a pedestal mechanism 55
It is composed of.

Swing arm mechanism (FIGS. 2 and 9) The swing arm 51 as a "swing arm mechanism" has a rotation center 56 at the top, and a gripping section that grips the opening 35 of the bag 5 at the bottom (near the tip). 5
7 is provided. That is, the opening 35 of the bag 5, which has been opened and expanded by the suction pad mechanism 13 and the air nozzle mechanism 14, is pinched and grabbed by the clamping part 57, and the opening 35 of the bag 5 is rotated as it is to open the polished rice, which will be described later. Transfer to the lower part of the chute mechanism 52 for loading,
The bag 5 is set in an upright position.

Shute mechanism (Figs. 9 and 10) Reference numeral 52 denotes a chute mechanism, and a tank (not shown) for holding polished rice 6 is provided above the chute mechanism, and a variable input port 58 is provided at the lower end of the chute mechanism 52. .
The variable input port 58 consists of a pair of gates 59 having a U-shaped cross section, and a rotating air cylinder 60.
The lower ends can be rotated toward and away from each other. Due to the proximity and separation of this pair of gates 59,
The opening amount of the variable input port 58 changes according to the width size W of the bag 5. And each gate 59
A bearing 61 is attached to. This bearing 61 is connected to an expander mechanism 53 which will be described later.
The opening angle of both gates 59 is regulated by being brought into contact with the dog 62 of the gate 59.

Expander mechanism (Fig. 11 and Fig. 12) 53 is the expander mechanism, and first the polished rice 6
In order to apply tension in the width direction (Z direction in the figure) to the opening 35 of the bag 5 held by the clamping part 57 of the swing arm 51 at the time of charging, and to facilitate the charging of the polished rice 6, the opening 35 is shaped approximately ◇. It opens the door. Reference numeral 63 denotes two slide bars, which are installed in parallel across the gate 59 of the variable input port 58. A slide portion 64 is provided. This slide part 64
are connected to swingable links 66 connected to both ends of the air cylinder 65, and the slide portions 64 slide toward and away from each other as the air cylinder 65 expands and contracts. ing. And in this slide part 64,
are bent in directions approaching each other, and the tip portions 67
Expander claws 68 each having a tapered shape are attached in a hanging state. Further, the tip end 67 of the expander claw 68 has a rough surface and is inclined so as to open outward. Therefore, the tip 36 is inserted into the opening 35 of the bag 5, and the bag 5 is opened from the inside.
When the bag is expanded and supported, the tip 67 comes into close contact with the inside of the bag 5, and the opening 35 of the bag 5
It becomes difficult to get out of it. Reference numeral 69 denotes an air cylinder for vertical movement, which moves the expander claw 68 up and down together with the slide bar 63, link 66, etc. Therefore, this expander claw 68 is movable vertically and horizontally.

A dog 62 is attached to the slide portion 64. This dog 62 is connected to a bearing 61 provided at each gate 59 of the variable input port 58.
and are in contact with each other, regulating their rotational trajectory. That is, the opening angle of each gate 59 is regulated via the bearing 61 according to the position of the expander claw 68, and the opening amount of the variable input port 58 is adjusted to the width size W of the bag 5.
It is made to correspond to.

Temporary holding body [FIG. 14 A to C] 54 is a temporary holding body, and the expander claw 6
The bag 5 is held in the width direction of the bag 5 near the opening 35, which has been brought into a tensioned state at step 8, to maintain the tensioned state.

Heat seal body (Fig. 9) Heat seal body 70 as "sealing means"
is the heat sealing body 2 in the bag making mechanism 12 described above.
3, it consists of a heating part 71 and a receiving part 72,
This is the part that clamps and welds the opening 35 after the polished rice 6 is thrown into the bag 5 from the chute mechanism 52 and seals it.

Pedestal mechanism (FIGS. 2, 15, and 16) The pedestal 74 of the pedestal mechanism 55 counts the number of pulses corresponding to the size of the bag 5 using a separate pulse generator 94. , it is designed to perform accurate vertical movements. This pedestal 74 has a hinge 75.
A tiltable receiving plate 73 is attached via the . This receiving plate 73 supports the bottom of the bag 5 supported by the swing arm 51 at the charging position A when the polished rice 6 is charged into the bag 5. When the introduction of the polished rice 6 is completed and the sealing is started, the receiving plate 73 is raised to the sealing position M in order to completely remove the weight of the polished rice 6 applied to the sealing part 85 of the bag 5. After sealing is completed, it descends to the cooling position N and stops for a predetermined time until the seal portion 85 is completely cooled. Finally, the seal portion 85 places the completely cooled bag 5 on it and descends to the transfer position B. At the transfer position B, the bottom of the receiving plate 73 interferes with the roller 76, so that the receiving plate 73 is tilted, and the sealed bag 5 containing the polished rice 6 can be transferred to another position. The height position of the loading position A and the cooling position N of the pedestal 74 in the pedestal mechanism 55 changes depending on the size of the bag 5. On the other hand, the sealing position M is a position raised by a certain number of pulses from the loading position A according to the size of the bag 5, and the transfer position B is always kept constant by the positioning stopper 82. ing.

Next, the operation will be explained.

First, a case will be described in which a 10 kg bag 5 is formed and the bag 5 is used to pack white rice 6. Tube 4 fed out from take-up roll 11
The guide belt 1 passes through multiple guide rollers.
8 is carried into the bag making mechanism 12. The optical sensor 10 is activated from the moment the tip of the tube 4 is introduced into the bag making device 2.

Edge detection operation (Fig. 1) First, the edge detection sensor 90 of the optical sensor 10
An edge detection operation is performed in which the edge 8 of the tube 4 is located while moving in the width direction Z of the tube 4. When the edge detection sensor 90 detects the edge 8, it moves further based on the detection position, and the mark detection sensor 91 is now located on the print line of the mark 9 on the tube 4. Therefore, there is an edge 8 at the edge part 7 of the tube 4.
It becomes possible to detect the mark 9 printed in advance at a certain position.

Pitch detection operation between marks (Fig. 1) Next, the tube 4 introduced into the bag making mechanism 12
are conveyed by the feed roller 20 in the direction along the edge 8 of the bag 5, that is, along the longitudinal direction, so that the mark detection sensor 91 detects each mark 9, and at the same time, the pulse generator 19 detects the mark 9. The number of pulses corresponding to the pitch P in between (in this embodiment, a pulse corresponds to 1 mm) is counted. That is, at the same time as the mark detection sensor 91 detects the first mark 9a, the pulse generator 19 starts counting pulses, and upon detection of the second mark 9b, the conveyance of the tube 4 (rotation of the feed roller 20) is stopped. At the same time, pulse counting also stops. Since the pitch P of the mark 9 is printed in advance according to the size of the tube 4, it is possible to determine from the number of pulses counted at this time that the type of bag 5 to be made is a bag 5 for packing 10 kg. become.

Returning operation (Fig. 3) Next, the feed roller 20 rotates backwards by the pitch P to return the tube 4, and the cutter 22 is positioned relative to the first cutting line 78a immediately before the first mark 9a, and cuts there. The unnecessary portion 84 at the tip whose dimensions are not accurate is cut off by cutting. This cut end becomes the front end 89 of the first bag 5. Note that this return operation is performed only when a new take-up roll 11 is used and there is an unnecessary portion 84 at the tip whose dimensions are not accurate.

Size corresponding operation (Figures 2 and 3) The signal (number of pulses) corresponding to the tube 4 for packing 10 kg by the pitch P detection operation between the marks 9 is as follows.
The signal is transmitted to the motor 87 of the cart 16 to which the bag making mechanism 12 is attached and the motor of the pedestal mechanism 55. In other words, the bag making mechanism 12 uses the signal from the pulse generator 19 to calculate the distance from the front end position 77, which is the "predetermined position", of the bag making device 2 to the cutting position of the bag 5.
The tube 4 is moved back and forth while being held between the feed rollers 20 so as to match the longitudinal dimension L, and then stopped. That is, at this point, the position of the bag making mechanism 12 corresponding to the bag 5 for filling 10 kg is determined. At this time, the cutter 22 is attached to the cut line 78b of the first bag 5, and the heat sealing body 23 is attached to the sealing portion 79.
are positioned correspondingly to each other.

Further, the loading position A of the pedestal 74 (receiving plate 73) of the pedestal mechanism 55 is adjusted to the optimum height for supporting the bottom of the bag 5 for filling 10 kg.

Cutting/sealing operation (Fig. 3) Next, the tube 4 is fed in the feeding direction by a pitch P (the number of pulses), so that the cut wire 78b and the sealing portion 79 are connected to the cutter 22 and the heat sealing body 2.
Positioned relative to 3. At this time, the cut opening (front end 89) matches the front end position 77 of the bag making device 2. and cylinder 27
The cutter 22 and the heat seal body 2 are
3 pinches the tube 4, and at the same time, the thin needle 26 descends. A predetermined cut line 78b is cut, the seal portion 79 is sealed (bottom seal in this embodiment), and a plurality of deaeration holes are made along the seal portion 79 by the thin needle 26. In this way, the bag 5 into which the white rice 6 is placed and sealed is formed. Note that this vent hole is for removing internal air after the polished rice 6 is packed into bags. The above is the operation by the bag making mechanism 12.

Opening and Expanding Operation (FIGS. 7 and 8) The bottom-sealed bag 5 is introduced so that its opening 35 is between the upper suction pad 40 and the sliding frame 47. First, the upper suction pad 40 is lowered by the air cylinder 36. At this time, the lower suction pad 43 is located slightly below the sliding frame 47, and even if the bag 5 is introduced, it will not be caught on the lower suction pad 43. The upper suction pad 40 continues to descend and stops with the sliding frame 47 being sandwiched between the upper rubber leg 41 and the lower rubber leg 45. In this state, the sliding frame 47 is slightly lowered by pressing the upper rubber legs 41, and the lower suction pad 43 is positioned slightly above the upper surface of the sliding frame 47, so that the lower suction pad 43 is securely moved. It is adsorbed into bag 5. Incidentally, this lowered state of the sliding frame 47 means that the sliding frame 47 is
7 is suctioned by the sliding frame suction pad 44 and is maintained as it is. Then, suction operation is performed by both upper and lower suction pads 40 and 43. After adsorption,
The upper suction pad 40 rises, and the opening 35 of the bag 5 is opened and expanded at the same time.

On the other hand, the air nozzle 14 is raised by the rotation of the swinging arm 48 as the upper suction pad 40 is lowered,
At the same time as it is attracted, it is positioned close to the opening 35. Then, air is blown into the bag 5 through the opening 35 in order to open the bag 5 more completely in order to facilitate the subsequent insertion of the polished rice 6. Then, the upper suction pad 40 rises and mainly falls.

Bag transfer operation (FIG. 9) Next, the swing arm 51 rotates to approach the bag making device 2 side, and the opening 35 of the bag 5, which has been opened and expanded, is held by the holding portion 57. grab. Then, while grasping the opening 35 of the bag 5, the bag 5 is rotated upward to position and set the bag 5 below the chute mechanism 52 in an upright state. Furthermore, the air nozzle 1
4, when the swing arm 51 comes to pick up the bag 5, it will not interfere because it has already descended, and since the sliding frame 47 is provided with a notch 80 at a position corresponding to the gripping part 57, the swing arm 51 will not interfere with the swing arm 51. Arm 51
The holding portion 57 can grip the bag 5 without interfering with the sliding frame 47.

Rice charging operation (FIG. 9) The bag 5 is held open by the clamping portion 57 with its opening 35 held open by the swing arm 51.
The chute mechanism 52 is set downward. Further, the bottom of the bag 5 is supported by the receiving plate 73 which has been raised to the loading position A. Then, a pair of expander claws 68 are inserted inside the opening 35, and each tip 68 is inserted into the opening 35.
7 slides away in the width direction (Z direction in the figure) until it comes into close contact with the inside of the edge portion 7 of the bag 5 and stops (until it cannot move due to the elastic force of the bag 5). As a result, the pair of expander claws 68
Even if the position of the bag 5 is slightly misaligned in the width direction, the bag 5 separates and moves to a position corresponding to the width of the bag 5, and is positioned there. Note that the distance between both expander claws 68 in this state is a unique distance depending on the width size W of each bag 5, and the opening amount of the chute mechanism 52 is determined from this distance as described later.

Due to the separation/movement of the expander claw 68 as described above, the opening 35 of the bag 5 is moved in a direction (width direction Z) that intersects the direction in which it is supported by the clamping part 57.
Since it is pulled (expanded), the opening shape becomes approximately ◇ shape, making it easy to insert the polished rice 6.
Next, the variable input port 58 of the chute mechanism 52 is opened, and a predetermined amount (10 kg) of polished rice 6 is input into the bag 5. At this time, the opening amount of the variable input port 58, that is, the approach/separation angle between the pair of gates 59 is automatically adjusted to an angle corresponding to the amount of polished rice 6 (10 kg) to be input. That is, since the distance between the expander claws 68 separates and stops at a specific distance corresponding to the width size W of the bag 5 for filling 10 kg, the dog 62 fixed to the slide portion 64 also corresponds to the width size W of the bag 5.
Each of them is stopped at a position corresponding to the Therefore, by the bearings 61 whose positions are regulated by contacting the dogs 62, the angles of approach and separation of the gates 59 are also adjusted according to the width W of the bag 5. In this embodiment, the variable input port 5
The opening amount of 8 is slightly larger for 10Kg, so
This means that the input time can be shortened.

Expander operation (Figures 11 to 14 C)) After putting the white rice 6 into the bag 5, the opening 35 is sealed. becomes irregular. In other words, it becomes wrinkled, and if left as it is, it will not be possible to form a perfect airtight seal. Therefore, opening 3
Prior to sealing in step 5, the expander mechanism 53 is used to straighten and clean the opening 35 to ensure a perfect seal.

Expander claw 6 of expander mechanism 53
8 is the opening 3 of the bag 5 in advance during the operation of adding polished rice.
When the holding part 57 of the swing arm 51 separates from the bag 5 after the introduction of the polished rice 6 is completed, they slide outward again to separate from each other. Therefore, since the opening 35 of the bag 5 is fully expanded from the inside to the width W of the bag 5, even though the bag 5 is filled with white rice 6, the opening 35 is free from wrinkles. It becomes perfectly straight.
The tip 81 of the expander claw 68 at this time
Since the position of is located below the lower end of the intended sealing part 85 of the bag 5, complete wrinkle prevention is achieved from the tip 81 to the upper part (including the intended sealing part 85). Figure 3 A and Figure 14 A].

Next, the temporary holding body 54 clamps the portion immediately below the portion held down by the tip 81 of the expander claw 68 across the entire width direction. When the temporary holding body 54 clamps the bag 5, both expander claws 6
8 slides slightly inward, stops pushing and expanding the bag 5, and moves upward. In other words, the tip 81 of the expander claw 68 rises as if to straddle the seal portion 85 without contacting the inside of the bag 5.
There is no damage to the inside of the bag 5 when it rises (Fig. 13 (b) and Fig. 14 (b)).

Then, slide it upwards again in the opening direction,
Expand the opening 35 portion from the inside. Then,
The opening 35 is pushed and expanded by the expander claw 68 from the portion held by the temporary holding body 54.
The area in between (including the seal portion 85) is neatly arranged without wrinkles (FIGS. 13C and 14C).

Opening sealing operation [FIG. 13 C and FIG. 14 C] The bag 5 prepared by the expander operation described above
The seal portion 85 is welded by sandwiching the seal portion 85 between the heat sealing bodies 70. At the same time as welding begins, the receiving plate 73 rises to the sealing position M, supports the weight of the polished rice 6, and completely removes the weight of the polished rice 6 applied to the sealing part 85. When the welding is completed, the heat sealing body 70 is opened, but the temporary holding body 54 still holds the bag 5.
In other words, after a predetermined period of time has elapsed, the seal portion 8 has been welded.
When the rice 5 is cooled down to the point where it can withstand the tension due to the weight of the polished rice 6, the temporary holding body 54 opens. As a result, the seal part 85 is
Since the rice 6 is sufficiently cooled without receiving the weight of the white rice 6, it is reliably sealed. At this point, the bagging of white rice 6 is completed.

Bag transfer operation (FIGS. 2 and 15) When the bagging is completed, the receiving plate 73 lowers to the receiving stand 74 with the bagged white rice 6 placed on it. Then, it is temporarily stopped at the cooling position N to further completely cool the seal portion 85. This cooling position N is set at a height where the upper part of the sealed bag 5 does not interfere with the rotation locus of the tip of the swing arm 51, so at this stage the swing arm 51 moves to the next bag 5.
can be rotated to pick up objects, improving work efficiency. Then, when it descends again and the pedestal 74 hits the positioning stopper 82 and stops at the transfer position B, the bottom of the receiving plate 73 hits the roller 76 and the receiving plate 73 is tilted. Due to this inclination of the receiving plate 73, the bags 5 that have been filled are separated from the receiving plate 73 and transferred onto the belt conveyor 83 below. At this time, the seal portion 85 is completely cooled, so even if there is a shock due to the transfer, the seal portion 85 will not burst.

By repeating and continuously performing the above operations, 10 kg of white rice 6 can be packed one after another. Then, set the amount of bagging to 5, for example.
When changing to a 5kg tube, it is sufficient to simply set a 5kg long tube in this packer device 1.
Once set, the bag making mechanism 2 and the pedestal mechanism 55 are positioned and controlled at appropriate positions via the optical sensor 10, and the opening amount of the chute mechanism 52 is adjusted via the expander mechanism 53.
It is possible to automatically pack white rice 6 into bags without making any troublesome adjustments or recombining the mechanism.

<Effects> Since the powder packer device according to the present invention has the contents as described above, it can produce various effects as described below.

(a) The bag size discrimination sensor mechanism moves and controls the bag making mechanism, pedestal mechanism, etc. to the optimal position according to the bag size, so there is no need for troublesome adjustments even when using tubes of different width sizes. There is no need to modify the mechanism, and powder and granular materials can be automatically and reliably packed into bags simply by setting the tube.

(b) Guide belts are integrally attached to the front and rear of the bag-making mechanism, so even if the bag-making mechanism moves, it follows the movement of the bag-making mechanism, so there is no gap between the front and back, ensuring tube introduction. can be guided.

(c) Since the air nozzle mechanism blows air toward the opening of the bag that has been suctioned by the suction pad mechanism, the opening can be reliably opened and expanded even if the bags are stuck together. .

(d) Since the chute mechanism changes the opening amount to the optimum size according to the width size of the bag, it is possible to perform the loading operation of powder and granular material reliably and efficiently.

(e) Since the opening of the bag is neatly arranged without wrinkles by the expander mechanism, the sealing operation of the opening becomes easy and a highly sealed seal can be reliably applied.

(f) Since the support plate of the support mechanism is adjusted to the optimal loading position in accordance with the tube, the bag can be reliably supported from below when powder and granular materials are introduced.

(g) In addition, since the transfer position of the pedestal mechanism is always constant regardless of the loading position, it is easy to combine with the next process such as a conveyor or palletizer, and since the receiving plate is tilted at the transfer position, Can be automatically transferred to the next process.

[Brief explanation of drawings]

Fig. 1 is a schematic explanatory diagram showing how tubes are made into bags, Fig. 2 is a schematic side view showing the entire packer device, Fig. 3 is an enlarged side view of the bag making mechanism, Fig. 4 5 is a side view showing the light emission detecting section and the reflecting section of the optical sensor, FIG. 5 is a partially cutaway side view showing the moving mechanism of the optical sensor viewed from the direction of the arrow in FIG. 3, and FIG. 5 is a partially broken plan view seen from the direction of the arrow in FIG. 7, FIG. 7 is a side view showing the suction pad mechanism, FIG. 8 is a partial sectional view taken along the line - in FIG. FIG. 10 is a side view showing the chute mechanism as seen from the direction of the arrow in FIG. 9, FIG. 11 is a side view showing the expander mechanism, and FIG. 12 is a side view seen from the direction of arrow XII in FIG. Figure 13 A, B, and C are explanatory diagrams showing the movement of the expander claw in sequence, and Figure 14 A,
B, C are explanatory views of partially broken parts seen from the arrow directions in FIGS. 13 A, B, and C, respectively, FIG.
5 is a side view seen from the direction of the arrow in FIG. 5. FIG. 1... Packer device, 2... Bag making device, 3...
Polished rice input device (powder input device), 4... tube, 5... bag, 6... polished rice (powder), 7... edge section, 9... mark, 10... optical sensor (bag size discrimination sensor mechanism), 12... bag making mechanism,
13... Suction pad mechanism, 14... Air nozzle mechanism, 18... Guide belt, 22... Cutter, 23... Heat seal body, 35... Opening,
51... Swing arm mechanism, 52... Shute mechanism, 53... Expander mechanism, 54... Temporary holding body, 55... Pedestal mechanism, 57... Holding part,
58...Variable input port, 59...Gate, 68...
Expander claw, 70... heat seal body (sealing means), 73... receiving plate, 77... front end position (predetermined position), 85... seal portion, 87... motor (moving means), 88... screw shaft (transportation),
89...Front end of the bag, A...Position position, B...Transfer position, P...Pitch between marks, W...Width size, L...Longitudinal dimension, X...Front direction, Y …
...Backward direction, Z...Width direction.

Claims (1)

[Claims] 1. A tube in the form of a long flat film that is carried in the longitudinal direction is
After cutting the longitudinal dimension from this predetermined position and sealing the bottom, a bag making device is used to form a bag of a predetermined size, and the powder and granules are put into the bag formed by the bag making device and the opening is opened. A packer device for powder and granular material is composed of a powder and granular material feeding device for sealing, and the bag making device is; A bag size discrimination sensor mechanism that detects the pitch between marks printed in advance on the edge portion of the tube and determines the longitudinal dimension from the predetermined position; A cutter that is movable and that cuts the tube in the longitudinal direction, a heat-sealing body for the bottom seal, a bag size discrimination sensor mechanism, a cutter, and a moving means that moves the entirety of the heat-sealing body in the longitudinal direction of the tube. A bag-making mechanism comprising a guide belt that follows the movement of the cutter and the heat-sealing body moved by a moving means and constantly forms a guide surface for carrying into the tube at the entrance and exit sides of the cutter and the heat-sealing body. , a suction pad mechanism that is located at the predetermined position and suctions the vicinity of the opening of the bag from both front and back sides, and an air nozzle mechanism that blows air toward the opening of the bag suctioned by the suction pad mechanism,
The powder and granular material charging device is equipped with a variable input port having a pair of gates that can freely adjust the opening amount and rotate toward and away from each other according to the width size of the bag. The opening of the bag formed by the chute mechanism and the bag making device is pinched and grabbed by the clamping part, and the opening of the bag is rotated as it is to transfer the opening of the bag to the lower part of the variable input port of the chute mechanism. A swing arm mechanism that sets the bag in the upright position; an expander mechanism that uses an expander claw and a temporary holding body to apply tension to the vicinity of the seal area scheduled for the opening of the bag prior to opening and sealing; After loading, the loading position of the receiving plate is determined for each bag size by a sealing means that seals the opening of the bag, and the loading position of the receiving plate is determined by pulse control corresponding to the signal from the bag size discrimination sensor mechanism, and the transferring position of the receiving plate is determined. A packer device for powder and granular material, characterized in that it is equipped with a pedestal mechanism whose receiving plate is inclined so as to transfer the bag to another at a fixed transfer position.