JP2816951B2 - Equipment for solidifying powder storage bags - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for eliminating solidification of a powder containing bag, and more particularly, to a soft resin bag containing powdered material such as potassium chloride which is a raw material of various chemicals and molded articles, or a cement. The present invention relates to a material solidification eliminating device used to eliminate material solidification of a stored paper cement bag or the like.

[0002]

2. Description of the Related Art Generally, powder materials such as potassium chloride are stored in a storage bag for 20 to 25 kg in which a material inlet is welded and sealed. May be solidified in the storage bag, and the material inlet is sewn and sealed.
Cement stored in a 25 kg cement bag may also solidify when stacked and stored for long periods.

[0003] When the powder material such as potassium chloride or cement is solidified in the storage bag, for example, the material input port of the storage bag is cut or a thread is removed to remove the powder material from the storage bag. When taking out and using
It becomes difficult to take out the powder material from the material inlet, and even if the solidified powder material is taken out of the storage bag, it cannot be uniformly mixed with other materials in the state of solidification. Furthermore, when a powder material such as potassium chloride is charged into a reaction tank in a state of being solidified, there is a problem that the liquid in the tank rebounds. So, conventionally,
The storage bag is lifted by human power and dropped and collides with a floor or the like to give an impact or hit with a hammer, so that the solidification of the material is eliminated and powdered.

[0004]

However, the storage bag for storing the powder material such as potassium chloride or cement is not suitable.
Since it weighs 袋 25 kg, it is very difficult to eliminate the solidification of the material by repeating the work of manually lifting and dropping such a large storage bag, or to solidify the material by hitting it many times with a hammer. There is a problem that not only labor is required but also powdering cannot be performed uniformly.

SUMMARY OF THE INVENTION An object of the present invention is to provide a small material solidification eliminating device which can be easily and uniformly powdered with a small amount of labor.

[0006]

According to a first aspect of the present invention, there is provided a material solidification eliminating device comprising at least a pair of rotatable roll members for passing a powder storage bag taken in from a primary side in a feeding direction to a secondary side in a feeding direction in a sandwiched manner. In the apparatus for eliminating solidification of material of a powder storage bag provided, the outer peripheral portion of the roll member has a convex portion divided between one end and the other end.

According to a second aspect of the present invention, there is provided a material solidification eliminating device in which at least one of the roll members is capable of separating from the other, and one of the roll members is biased by a biasing means to reduce the distance between the roll members. It is characterized by being biased to.

According to a third aspect of the present invention, in the apparatus for eliminating solidification of material, each of the roll members can be rotated in the reverse direction, and the powder storage bag that has passed between the roll members in the secondary direction in the feeding direction is again moved to the roll member side. It is characterized by comprising return means for retreating and phase changing means for changing the relative phase in the rotation direction of each roll member between the forward rotation side and the reverse rotation side.

In the first invention, the powder containing bag is deformed into a corrugated shape by the convex portion and the non-convex portion provided on the outer peripheral portion of the roll member, in other words, the concave portion, so that the material in the bag is solidified into powder. Can be. Therefore, the powder can be easily and uniformly powdered with a small amount of labor for sending the powder storage bag between the roll members. In addition, the convex portion for pressing the powder storage bag is provided on the outer peripheral portion of the roll member, and continuously presses the powder storage bag in the passing direction by the rotation of the roll member. The mechanism for pressing evenly is small, and the entire device can be reduced in size.

In the second invention, at least one of the roll members can be separated from the other against the urging means, so that when the powder containing bag passes between the roll members, A certain pressing force can be applied to the powder storage bag, and the powder storage bag can be prevented from being excessively pressed depending on the strength of the solidified material or the size of the powder storage bag. It can be effectively prevented.

According to the third aspect of the present invention, since the powder containing bag can be moved back to the roll member again by the return means, the powder containing bag can be taken out from the feeding side, so that the depth is small. It can be installed in a space without any trouble, and one worker can work efficiently with a small amount of movement. In addition, since the pressing portion by the convex portion at the time of forward feeding and at the time of backward feeding can be shifted in the feeding direction, the powder storage bag can be pressed entirely without increasing the size, and the material solidification can be further improved. It can be solved at a higher level.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A material solidification eliminating apparatus shown in FIGS. 1 to 3 is a loading conveyor 2 having a large number of rollers 2a on a frame 1 having columns 11 and 12 on the left and right sides at the center in the front-rear direction. And an unloading conveyor 3 also having a large number of rollers 3a are arranged side by side in the horizontal direction.
A pair of upper and lower roll members 4 and 5 for passing the powder storage bag A taken in from the carry-in conveyor 2 on the primary side (feed side) in the feed direction to the secondary side (feed side) in the feed direction between the right and left between the right and left, respectively. It is rotatably supported via a pair of upper and lower bearings 6 and 7, so that the lower roll member 5 of these roll members 4 and 5 cannot be moved up and down.
Can be separated upward with respect to the lower roll member 5, and the upper roll member 4 is urged toward the lower roll member 5 by an urging means 8 having a coil spring 8a to reduce the roll interval. While the thickness is smaller than the thickness H of the storage bag A, a pair of intermediate shafts 14, 15 vertically opposed to a bracket 13 projecting rearward from the right support column 12.
Are rotatably supported, and interlocking gears 16, 16 meshing with these intermediate shafts 14, 15;
17 and a sprocket 41 provided at one end of each of the sprockets 17, 17 and each of the roll members 4, 5.
A transmission chain 18, 18 is interposed between the transmission shaft 51 and the roller 51 so that the roll members 4, 5 can rotate at a constant speed. Further, an input wheel 19 is provided on the lower intermediate shaft 15, and the input wheel 19 and the A transmission chain 22 is hung between a driving wheel 21 such as a motor mounted on the frame 1 and a drive shaft of a prime mover 20, and the power of the prime mover 20 rotates each of the roll members 4, 5 at a constant speed in forward rotation. Reverse rotation.

Each of the roll members 4, 5 is formed to have the same outer diameter as shown in FIG. 4, and the powder accommodating bag A is placed on the outer peripheral portion of each of the roll members 4, 5 toward the other roll member. .., 5a... Are projected at the same height at regular intervals in the circumferential direction, and the phase of each roll member 4, 5 in the rotation direction is adjusted by the lower roll member 5. The protrusions 5a face the recesses 4b located between the protrusions 4a of the upper roll member 4 and the protrusions 4b of the upper roll member 4.
a face the concave portion 5b located between the convex portions 5a of the lower roll member 5, and rotate the roll members 4 and 5 at a constant speed by this phase difference. Convex part 4
, 5a are prevented from interfering with each other, and an interval smaller than the thickness H of the powder storage bag A can be maintained between the roll members 4, 5. Each of the roll members 4 and 5 is made of a metal tubular pipe having both ends closed by a cover plate, and a half of the metal tubular pipe is welded to the outer periphery of the tubular member so as to cover the entire length of the roll members 4 and 5. The convex portion 4a extending over
, 5a ... are formed. In addition, the said convex part 4a ...,
5a are formed continuously over almost the entire length of the roll members 4 and 5, or may be formed intermittently in a plurality.
It may be formed in the shape of a ridge or a hemisphere and arranged in the same row or in a staggered manner.

As shown in FIG. 2, the left and right columns 11 and 12 are formed as a pair facing each other at predetermined intervals in the front-rear direction. A guide body 23 having a protruding rail 23a is provided, and the upper bearing 6 having an engaging groove 6a for engaging with the protruding rail 23a is supported between the guide bodies 23 so as to be vertically movable. The upper roll member 4 can be separated upward from the lower roll member 5 via the upper bearing 6, and the pair of columns 11, 12 as shown in FIGS.
A screw cylinder 24 oriented in the up-down direction is screwed to the horizontal supports 10, 10 provided between them, and a pair of upper and lower spring receivers 25, 25 are interposed between the lower end of the screw cylinder 24 and the upper bearing 6. Thus, the coil spring 8a of the urging means 8 is interposed.

An adjusting nut 26 abutting on the upper surface of the horizontal ridge 10 is screwed into an upwardly projecting portion of the screw cylinder 24 from the horizontal ridge 10, and the screw nut 24 is rotated by operating the adjustment nut 26. The coil spring 8a and the screw cylinder 24
A rod 27 penetrating through the inside is fixed, and an adjusting nut 28 and a lock nut 29 are screwed into an upper protruding portion of the rod 27 from the screw cylinder 24, and the adjusting nut 28 is rotated while the lock nut 29 is loosened. By doing so, the rod 27 is relatively moved up and down, and the pressing force of the coil spring 8a can be adjusted. The adjusting nut 26
Is rotated, the rod 2 follows the screw cylinder 24.
7 moves up and down, so that the coil spring 8a
Does not change, and in this state, the roll interval can be adjusted within a range of 60 to 150 mm. When the adjusting nut 28 is rotated, a wrench or the like is fitted to a non-circular portion 24a provided at the upper end of the screw cylinder 24 to prevent the screw cylinder 24 from rotating together.

At the end of the unloading conveyor 3 in the frame 1, the powder accommodating bag A which passes between the roll members 4 and 5 and is unloaded from the unloading conveyor 3 is retreated to the roll members 4 and 5 again. In addition to providing return means 30 for moving, the phase change means 5 for changing the relative phase in the rotation direction of the roll members 4, 5 between the forward rotation side and the reverse rotation side.
0 is provided.

The return means 30 is connected to the frame 1
A bag receiver 32 movably supported in the front-rear direction by guide rods 31 extending in the front-rear direction from both left and right sides of the bag, and a coil spring for urging the bag receiver 32 toward the roll members 4, 5. A biasing means 33 such as 33a, and a limit switch for contacting the bag receiver 32 when the bag receiver 32 moves a predetermined distance in the unloading direction of the powder storage bag A to turn on the prime mover 20 and the like. When the motor 34 is reversely rotated by the ON operation of the detector 34, a timer (not shown) is turned ON, and after the time set by the timer elapses, each roll is By rotating the members 4 and 5 in reverse, the powder containing bag A, which is forcibly moved backward by the urging means 33, is moved backward by the roll members 4 and 5. Further, the detector 34
Is disposed at a position where the bag receiver 32 comes into contact with the powder storage bag A and is turned on when the terminal end portion a of the powder storage bag A is released from being caught by the roll members 4 and 5.
A biasing force is adjustably supported on the distal end side of each of the guide rods 31, 31 so that the powder storage bag A sent by the roll members 4, 5 abuts against the bag receiver 32 to be elastically deformed. The guide rods 31 are attached to the frame 1 so that the positions thereof can be changed. Incidentally, the detector 34 may be a photoelectric sensor, and the urging means 33 may be an actuator.

The phase changing means 50 includes a sprocket 51 provided on the roll shaft 5c of the lower roll member 5.
Is freely rotatable with respect to the roll shaft 5c, meshing projections 52 and 53 are provided between the roll shaft 5c and the sprocket 51, and a gap K is provided between the meshing projections 52 and 53. 51 is movable in the rotation direction with respect to the roll shaft 5c, and the prime mover 20 is switched from forward rotation to reverse rotation, and the power of the reverse rotation is transmitted from the transmission chains 18, 18 to the sprockets 41,5.
1, the sprocket 41 and the roll member 4
The sprocket 51 and the roll member 5 rotate together with the sprocket 51 while the sprocket 51 rotates freely with respect to the roll shaft 5c. Rotate together to change the phase in the rotation direction of the lower roll member 5 and the upper roll member 4.

In the above configuration, when the solidification of the material of the powder storage bag A is eliminated, the powder storage bag A is transported from the carry-in conveyor 2 to between the roll members 4 and 5 as shown by a chain line in FIG. The sheet is passed between the roll members 4 and 5 while being elastically sandwiched between the members 4 and 5. At this time, the powder accommodating bag A is provided with the projections 4a, 5a,.
Are pressed by the recesses 5b,..., 4b... Of the mating roll member, and the powder accommodating bag A is deformed into a waveform, and the deformation of the waveform is caused by the four protrusions 4a,. And the four recesses 4b,..., 5b..., So that the solidification of the material in the bag can be uniformly pulverized.
When passing through the space 5, the urging means 8 can prevent the powder accommodating bag A from being excessively pressed depending on the strength of the material solidification and the size of the powder accommodating bag A. It can be effectively prevented. Further, a plurality of convex portions 4a, ..., 5a ... pressing the powder storage bag are provided on the outer peripheral portions of the roll members 4, 5, and the rotation of the roll members 4, 5 continuously moves the powder storage bag in the passing direction. Therefore, the mechanism for uniformly pressing the entire powder storage bag is small, and the entire apparatus can be reduced in size.

Then, the powder containing bag A which is passed through the roll members 4 and 5 and unloaded from the unloading conveyor 3 is placed in the bag receiver 32.
The bag receiver 32 moves to the right in FIG. 1 against the urging force of the urging means 33 together with the powder accommodating bag A sent by the roll members 4 and 5, , The detector 34 is turned on, the timer is turned on, and after a lapse of time set by the timer, the prime mover 20 rotates in the reverse direction, and the roll members 4, 5 rotate in the reverse direction.
The powder containing bag A is pressed by the force of the urging means 33 together with the bag receiver 32 toward the roll members 4 and 5 and retreats, and passes between the roll members 4 and 5 again. At this time, since the phase of the lower roll member 5 in the rotation direction with respect to the upper roll member 4 is changed by the phase changing means 50 provided on the roll shaft 5c of the lower roll member 5, the protrusions of the roll members 4 and 5 are formed. 4
a, 5a..., 5a... are displaced, and the bag can be entirely pressed, so that solidification of the material can be eliminated at a higher level.

In the above embodiment, one set of the roll members 4 and 5 may be provided as shown in FIG. Each of the roll members 4 and 5 is driven by power from the prime mover 20 as shown in FIG. 1 and is free to rotate freely as shown in FIG. A pair of roll-shaped drive wheels 60, 60 driven by the power from the prime mover 20 may be provided, and the drive wheels 60, 60 may feed the powder storage bag A. The roll members 4 and 5 may be vertically opposed as shown in FIGS. 1 and 9 or may be horizontally opposed as shown in FIG. In this case, the conveyors before and after the roll members 4 and 5 are inclined in the vertical direction. In the case of FIG. 10, for example, the prime mover 20 is provided in front of the roll members 4 and 5.
Pair of roll-shaped drive wheels 60, 6 driven by power from
0 may be provided so that the roll members 4 and 5 can only rotate freely, or the drive wheels 60 and 60 may be eliminated and the roll members 4 and 5 may be driven.

In the above embodiment, as means for adjusting the pressing force of the urging means 8 by the coil spring 8a, the rod 27 penetrating through the coil spring 8a and the screw cylinder 24 is fixed to the upper bearing 6, The adjustment nut 28 is screwed to the upper end of the rod 27. Alternatively, a flexible wire 9 may be used instead of the rod 27 as shown in FIG. The guide tube 10a shown in FIG. 11 has a guide tube 10a having an insertion hole penetrating in a vertical direction, fixed to horizontal members 10, 10 provided between the pair of columns 11, 12.
The screw cylinder 24 is inserted into the screw cylinder 24 so that it cannot rotate relatively but can only move up and down. 26, and a cap nut 91 having a tightening screw 90 is fixed to the upper end of the screw cylinder 24,
Further, a lock nut 92 that abuts on the lower surface of the horizontal ridge 10, an upper spring receiver 25 a that receives the upper end of the coil spring 8 a, and a lock nut 93 are screwed into a downwardly projecting portion of the screw cylinder 24 from the horizontal ridge 10. At the same time, the upper bearing 6 is provided with a flexible wire 9 penetrating through the coil spring 8a and the screw cylinder 24.
The upper end of the wire 9 is fixed to the screw cylinder 24 with the tightening screw 90, and the adjusting nut 26 is rotated while the lock nut 92 is loosened. The wire 9 is bent inside the coil spring 8a by moving the upper bearing 6 up and down together with the screw cylinder 24 and rotating the upper spring receiver 25a with the lock nut 93 loosened. However, the pressing force by the coil spring 8a is adjustable. Although not shown, a guide groove extending up and down is provided on one side of the outer surface of the screw tube 24, and an engagement protrusion that engages with the guide groove is protruded from the inner surface of the guide tube 10a. The screw cylinder 24 can only move up and down.

By configuring as shown in FIG. 11, FIG.
Since the adjustment nut 28 can be eliminated, the structure can be simplified, and the lock nut 93 can be arranged below the horizontal support 10, so that the structure of the portion projecting upward from the horizontal support 10 can be simplified, Further, when adjusting the pressing force by the coil spring 8a, it is possible to prevent the length of the rod 27 projecting from the screw cylinder 24 from changing as shown in FIG.

The urging means 8 includes a coil spring 8a
In addition, although not shown, an actuator may be used. In the above embodiment, only the upper roll member 4 can be moved in the direction away from the lower roll member 5, but in addition, the upper and lower roll members 4, 5 can be moved in the direction away from each other. And these roll members 4 and 5
May be urged by the urging means 8 in a direction in which the roll interval becomes smaller.

[0025]

According to the device for eliminating solidification of material according to the first aspect of the present invention, the powder storage bag is deformed into a waveform by the convex and non-convex portions provided on the outer peripheral portion of the roll member, in other words, the concave portion. The convex portion that can powder the material solidification and presses the powder storage bag is provided on the outer peripheral portion of the roll member, and continuously rotates the powder storage bag in the passing direction by the rotation of the roll member. Therefore, the mechanism for uniformly pressing the entire powder storage bag is small, and the entire apparatus can be reduced in size. According to the material solidification eliminating device according to the second invention, at least one of the roll members can be separated from the other member against the urging means.
When the powder storage bag passes between the roll members, a constant pressing force can be applied to the powder storage bag, and the powder storage bag is excessively pressed due to the strength of the solidified material or the size of the powder storage bag. Therefore, the powder storage bag can be effectively prevented from being damaged. According to the material solidification eliminating device according to the third invention, since the powder storage bag can be moved back to the roll member again by the return means, the powder storage bag can be taken out from the feeding side.
Therefore, it can be installed without difficulty even in a space with a small depth, and one worker can work efficiently with a small amount of movement. In addition, since the pressing portion by the convex portion at the time of forward feeding and at the time of backward feeding can be shifted in the feeding direction, the powder storage bag can be pressed entirely without increasing the size, and the material solidification can be further improved. It can be solved at a higher level.

[Brief description of the drawings]

FIG. 1 is a front view of a material solidification eliminating device according to the present invention.

FIG. 2 is a cross-sectional plan view in which a part of FIG. 1 is omitted.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is an enlarged front view of only the main part.

FIG. 5 is a side view of only the phase changing unit.

FIG. 6 is a sectional view taken along line XX of FIG. 5;

FIG. 7 is a sectional view corresponding to FIG. 6 when the roll member is rotated in the reverse direction.

FIG. 8 is a perspective view showing an example of the powder storage bag.

FIG. 9 is a partially omitted front view showing another embodiment.

FIG. 10 is an explanatory view showing still another embodiment.

FIG. 11 is an explanatory view showing another embodiment of the urging means.

[Explanation of symbols]

 4,5 Roll member 4a, 5a Convex part 4b, 5b Concave part 8 Urging means 30 Return means 50 Phase change means

Claims (3)

(57) [Claims] 1. A material for a powder storage bag provided with at least one pair of rotatable roll members for passing the powder storage bag taken in from the primary side in the feeding direction to the secondary side in the feeding direction in a sandwiching manner.
In the solidification eliminating device, on the outer peripheral portion of the roll member ,
An apparatus for eliminating solidification of a material of a powder storage bag, comprising a divided projection between one end and the other end . 2. At least one of said roll members is provided with another
You are possible away to, urge one of the roll member said is
Material solidifying elimination apparatus powder bag intervals energized by being claim 1, wherein the direction is reduced between the roll member by means. 3. The roll member can rotate in reverse.
Ri, wherein the rotational direction of the relative position <br/> phase of each roll return means member between powder bag which has passed through the feed direction secondary side again moved backward to the roll member side and the respective roll members Equipped with phase changing means for changing between the forward rotation side and the reverse rotation side
The device for eliminating solidification of a material of a powder storage bag according to claim 1 or 2.