JPS5839052B2 - Folded straw manufacturing equipment - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improved pleated straw manufacturing apparatus.

Folded straws are widely used because they are convenient for drinking.

In order to cope with the increase in demand, the inventor of the present application previously issued Japanese Patent Application No. 54-37487 and Japanese Patent Application No. 54-37488.
For the issue, pleated straw manufacturing equipment and pleated straws.
proposed a molding device.

These devices have been highly praised for their ability to produce pleated straws at a high speed (approximately 200 straws per minute), which was impossible with conventional manufacturing devices.

The present invention improves the above device to provide approximately 1.5
The feature is that the number of straws manufactured can be increased by about 0 to 200.

In this way, the increase in the number of pleated straws manufactured, that is,
The reason why it became possible to further increase the speed is as follows.

Japanese Patent Application No. 54-37487 (hereinafter referred to as the conventional device) discloses a pipe in which a number of extrusion rods with a large diameter or rather large diameter for extruding raw material straw pipes are arranged on the outer periphery of the pipe so as to be slidable in the direction of the forming rod. A supply drum and a molding rod holding l/ram rotatably provided with a large number of molding rods into which the same number of straws and having the same circumference as the extrusion rods are inserted and molded can be coaxially driven to rotate. Straw pipes are provided facing each other on the base, and are fed from hoppers installed at the top. The straw pipes are fed to the extrusion rod sliding groove at the top of the pipe supply drum, which is rotating without being separated, and then As the extrusion rod moves as it rotates, the straw pipe is sequentially extrapolated onto the forming rod, and when the pipe supply drum rotates 90 degrees from the top, the forming part is pressed and formed between the forming roller and the presser roller, and then That is, when reaching the lowest part, the straw is compressed by a pipe compression and discharge rod provided on the outer periphery of the forming rod holding drum so as to move along the forming rod, and the uneven portion provided in the forming part becomes folded. , the extrusion rod is instantly returned to its original position by a high-speed rotating return chain located directly below the pipe supply drum, and then the pipe compression discharge rod is also instantly moved by a discharge chain located directly below the forming rod holding drum. Then, the pleated straw of the product, which is inserted onto the forming rod, is pulled out onto the discharge conveyor.

In this way, in the conventional apparatus described above, the raw material straw pipe is supplied from the uppermost part of both drums, and the raw material straw pipe is supplied from the uppermost part of both drums, i.e., 18
Since both drums are taken out as products when rotated by 0°, both drums are 36
The remaining 180 degrees at 00 rotation 1 were being used for preparation.

The straw drum was only used for forming half of its entire circumference.The biggest reason for this was that it had a button directly below the drum and was driven by a chain to instantly eject the straw of the product from the forming rod. .

Therefore, in the present invention, by providing a guide around the entire circumference of the drum for moving the extrusion rod and the pipe compression/discharge rod back and forth, half of the remaining 180 degrees, 90 degrees, can be used for forming straw pipes. It was completed after solving various problems.

What makes it possible to speed up production of pleated straws by such a method is a specific structural feature (i.e., a feature of the present invention).

), first of all, the tip of the hopper supply guide for feeding the raw material strawpipe to the pipe supply drum is not at the top like in the past, but at the front about 45 degrees in the rotational direction. It is set up in

In other words, the raw material straw pipe is fed onto the pipe supply drum faster than the conventional method.The second point is the location where the product pleated straw is taken out.
In other words, the position at which the straw is extracted from the forming rod is at the bottom of the rotating drum in the conventional case, whereas in the present invention, the straw is compressed at a position further rotated by approximately 45 degrees. When finished, it is discharged from the device.

The third feature (this is the most distinctive feature of the present invention) is that the extrusion rods, which are disposed in large numbers on the pipe supply drum, are moved from side to side to extrude the entire outer circumference of the pipe supply drum. A guide for the rod is provided, and a roller provided at the end of the extrusion rod slides and rotates to move the extrusion rod back and forth from side to side.A guide for the pipe compression and discharge rod is also provided around the entire outer periphery of the forming rod holding drum. This made it possible for the pipe compression and discharge rod to move back and forth to the left and right.

With this structure in which the extrusion rod and pipe compression/discharge rod are advanced and retreated using a guide, it is no longer necessary to install a chain drive device at the bottom of the pipe supply drum to instantly return the extrusion rod to its original position, unlike conventional equipment. There is also no need for a chain drive for instantly moving the pipe compression discharge rod to the bottom of the forming rod holding drum to remove the product from the forming rod, thus making it possible to utilize the lower space accordingly. This not only made it possible to make the outer circumference of the drum tighter, but also made the device simpler and cheaper.

This will be explained in detail below with reference to the drawings.

The drawings illustrate the present invention, and FIG. 1 is a front view of the pleated straw manufacturing apparatus, FIG. 2 is a rear view, FIG. 3 is a left side view, and FIG. 4 is taken along A-A in FIG. 1. This device is a frame 2 that stands on a base 1, and a hopper 4 that accommodates a large number of raw material straw pipes 3 at the top of the frame 2.
A pipe supply drum 6 is provided at the lower part of the hopper 4 and is rotatable by a shaft 5 rotatably supported on the base 1.

A large number of extrusion rod sliding grooves 7 parallel to the shaft 5 are provided at equal intervals on the outer periphery of the pipe supply drum 6, and a straw supply guide 8 from the hopper 4 is inserted into the extrusion rod sliding grooves 7. A raw material straw pipe 3 is then fed as shown in FIG.

The raw material strobe supply position 1 is about 45° from the top 1 of the pipe supply drum 6, as described above.

button, conventionally the top 1 button as shown by the two-dot chain line in Figure 4.
Raw material straw pipes were being supplied to the plant.

The straw pipe 3 supplied into the extrusion rod sliding groove 7 moves to the right in FIG. 2 when the pipe supply drum 6 rotates clockwise.

In order to move the straw pipe 3, an extrusion rod 9 is fitted into the extrusion rod sliding groove 7 in the pipe supply drum 6 so as to be slidable left and right. Guides 10° and 11 are provided at intervals sufficient to allow rotation.

This guide consists of a pair of extrusion rod extrusion side guide 10 and return side guide 11, which are fixed on the base 1 so as to have a constant interval 12.

As can be seen in the partially cutaway side view of FIG. 5, the extrusion rod 9 has a roller 13 pivotally supported at its rear end (on the right side of the drawing). The extrusion rod 9 is moved forward and backward along the movement.

Therefore, the tip of the extrusion rod 9 (left side in Fig. 5) is a straw.
While pushing the pipe 3, a forming rod 14 (to be described later) is inserted into the hess draw pipe.

A holding drum 15 for forming rods 14 is provided on the same shaft 5 facing the pipe supply drum 6 .

Both this forming rod holding drum 15 and the aforementioned pipe supply drum 6 are powered by a motor installed in the base 1, which rotates 160 times, through a chain 17, a sprocket 18, a small diameter helical gear 19,
It is transmitted by a large diameter helical gear 20 fixed to the pipe supply drum 6 and rotates in the same direction at the same rotational speed.

The molding rod holding drum 15 is provided with insertion holes for passing the same number of molding rods 14 as the extrusion rods 9 at equal intervals around its entire circumference and at the same positions facing the extrusion rods 9 described above. The molding wand shown in 14 is rotatably inserted in a conventional manner.

The forming rod 14 is also moved from side to side with respect to the forming rod 14, with the pipe pressing portion 22 at the tip of the pipe compression and discharge rod 21 being inserted outside.

As described above, the straw pipe 3 supplied from the hopper 4 is gradually moved to the left in the drawing by the extrusion rod 9 as viewed in FIG. 2, and is inserted onto the forming rod 14.

As shown in FIG. 1, the extrusion rod sliding groove 7 of the pipe supply drum 6 comes to the front of the device at 1, and as shown in FIG.
Point m that has progressed 50 degrees forward (conventionally, point 2 of 90°j from i
At the position indicated by the dotted chain line), the straw pipe 3 has already been extrapolated onto the forming rod 14, and at this position the base 1
The molding groove of the molding rod 14 is pressed and rolled in the conventional manner between a molding roller 23 rotatably attached to a support arm erected above and a presser roller 24 pressably supported by a spring 35 on the frame 2. The portion 25 forms a large number of concave and convex stripes that become folds on the straw pipe.

When the forming rod 14 reaches point m, this pressing rolling occurs between the large pulley 21 rotated by the motor 26 and the small pulley 28 provided at the rear end of the forming rod 14, as shown in FIG. contact, the forming rod 14 rotates, and as a result, as shown in FIG.
This is caused by the rotation of the

On the other hand, the guides 30 and 31, which is one of the features of the present invention, are fixed on the base 1 by providing a gap around the outer periphery of the molding rod holding drum 15 that allows the molding rod holding drum 15 to rotate. The guides 30 and 31 provided are for moving the pipe compression discharge rod 21 forward and backward.
A roller 29 provided at the rear end of the pipe compression and discharge rod 21 shown in the figure rolls along the guides 30, 31.

The guides 30 and 31 of the pipe compression and discharge rod consist of an extrusion side guide 30 and a return side guide 31, both of which are fixed on the base 1 with an interval 32 sufficient for movement of the rollers 29 mentioned above.

As the forming rod 14 moves to the lower part along with the rotation of the forming rod holding drum 15, the straw provided with the unevenness forming pleats at point m in FIG.
4 is pushed to the right in FIG.

This situation is also seen in FIG. 6, and since the tip of the straw pipe 3 is in a state where it butts against the extrusion rod 9, it is compressed and becomes uneven and corrugated 33.

The pipe compression and discharge rod 21 that is pressed at this time has its rear roller touching the extrusion side guide 30 and rolling, so the first
The pipe 3 is gradually pushed to the right in the figure.

Conventionally, the pressure with the forming rod holding drum 15 was applied to the lower part (K
However, in the present invention, the conventional method of removing the pleated straw from the product using a chain drive has been stopped and a guide method has been adopted, so that the method of taking out the pleated straw of the product can only be done at point 1 well before point
It is possible to compress with.

The ejection of the pleated straw of the product and the retraction and storage of the extrusion rod 9 are completely different from the conventional method.

That is, when the button is pressed at point K and the straw is compressed and becomes a pleated straw, the rollers 13 of the extrusion rod 9 touch the return side guide 11 and roll, moving to the right in FIG. 1 and returning to the original position. Go back and have some candy.

Then, the pipe compression discharge rod 21 also pushes the straw to the right in FIG.
When the n point of 50 (see Figure 4) is reached, the molded rod 1 is completely
The straw is discharged from 4.

The product straws then fall onto the chain conveyor 34 rotating below the pipe supply drum 6 and are carried away from the apparatus.

After compression molding and discharge, the pipe compression and discharge rod 21 rotates as the rollers 29 touch the return side guide 31 and returns to its original position near the center of the front of the device after it has completed its rotation.

On the other hand, the extrusion rod 9 returns to its original position at the lower rear of the device (see FIG. 2) while rotating as the rollers 13 touch the return guide 11.

These forming rods 14 (rotated by a forming rod holding drum in a fixed position relative to the longitudinal direction of the device).

FIG. 7 shows the entire circumference of each guide 10, 11° 30.31 for moving the extrusion rod 9 and pipe compression/discharge rod 21 with respect to ).

As described in detail above, the present invention moves the extrusion rod 9 of the straw pipe forward and backward using a pair of guides, the extrusion side guide 10 and the return side guide 11, and also compresses the straw fitted onto the forming rod 14. Because of the novel mechanism in which the pipe compression and discharge rod 21 for discharging is also performed by a pair of extrusion side guides 30 and return side guide 31, as the pipe supply drum and the forming rod holding drum rotate, the extrusion rod also compresses the forming rod. They move forward and backward to fulfill their respective functions.

Therefore, not only the structure is simple, but also the manufacturing efficiency of the pleated straw is increased, which is advantageous.

[Brief explanation of drawings]

FIG. 1 is a front view of the pleated straw manufacturing apparatus, FIG. 2 is a rear view, FIG. 3 is a left side view, and FIG. 4 is a sectional view taken along line A-A in FIG. FIG. 5 is a partially cutaway side view of the extrusion rod, and FIG. 6 is a perspective view of the forming rod and pipe compression and discharge rod. Further, FIG. 7 is an explanatory diagram showing the entire circumference of the extrusion rod guide and the pipe compression and discharge rod guide developed. 6... Pipe supply drum, 9... Extrusion rod, 10
... Extrusion rod extrusion side guide, 11 ... Extrusion rod return side guide, 13 ... Roller, 14 ... Forming rod, 15 ... Forming rod holding drum, 21 ... Pipe compression discharge rod, 23... Forming roller 24...
Presser roller, 25... Molding groove portion, 29... Roller, 30... Extrusion side guide of pipe compression discharge rod, 3
1...Return side guide of pipe compression discharge rod, i...
・Top of the drum, j... 90° position from the top of the drum, k... 180° position (bottom) from the top of the drum, 1... Position 45° from the top of the drum, m・
...Position 45° from the top of the drum, n...Position 45° from the bottom of the drum.

Claims (1)

[Scope of Claims] 1. A pipe supply drum 6 on the outer periphery of which a number of extrusion rods 9 having a somewhat thick straw diameter are arranged in a number of extrusion rod sliding grooves 7 so as to be slidable in the direction of the forming rod 14; A molding rod holding drum 15 rotatably provided with molding rods 14 inserted therein in the same number and on the same circumference as the extrusion rods 9 is rotatably driven on the same axis and is provided facing each other to hold the molding rod. A molded rod 1 is placed on the outer periphery of the drum 15.
A pipe compression discharge rod 21 that moves along the extrusion rod 9 is slidably provided opposite to the extrusion rod 9, and
The pleated straw manufacturing apparatus is equipped with a forming roller 23 and a presser roller 24 provided on the base 1 to press the forming groove 25 from both sides, and an extrusion side guide 10 and a return side guide 11 are arranged on the outer periphery of the pipe supply drum 6. A pair of extrusion rod guides are provided to cause the rollers 13 provided on the extrusion rod 9 to contact and roll, and a pair of pipe compression discharge front guides consisting of an extrusion side guide 30 and a return side guide 31 is also provided on the outer periphery of the forming rod holding drum 15. Provide pipe compression discharge rod 2
The rollers 29 provided in 1 are brought into contact and rolled. A straw supply guide is installed forward in the rotational direction from the top of the pipe supply drum, and the strawpipe, which is rotated backward from the highest part of the pipe supply drum and is fitted onto the forming rod, is discharged by the pipe compression discharge rod. A pleated straw manufacturing device characterized by automatically feeding, forming, compressing, and discharging pipes.