JPS5962416A - Holder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to holders, and more particularly to holders for housing freestanding pouches.

A self-supporting pouch 1 (hereinafter referred to as a pouch) is usually made by heat-sealing both side edges 1al of flexible opposing wall portions 1a, and then forming a bottom portion 1b which is folded in two, as shown in FIG. 1bt indicates a bent portion) is heat-sealed to the inner surface of the lower end of the wall portion 1a to form a heat-sealed portion 1c (the boundary 1cl of the heat-sealed portion lc has a reverse arch shape). Ru.

In the manufactured state, the pouch 1 has wall portions la,
Since the wall portion 1a and the bottom portion 1b are in contact with each other and have a flat shape, by blowing a cis body (for example, air) through the mouth portion 1d, the bent portion 1bl of the bottom portion 1b almost disappears, as shown in FIG. After expanding the bottom part 1b until it becomes almost curved, the contents are filled, and the grip belt and grip roll are assembled using the method proposed by the present inventors in Japanese Patent Application No. 56-138600. After stretching the mouth part 1d using a belt sealer or a die-roll sealer, the mouth part 1d is
will be heat sealed.

After that, if the contents are diesel or the like and are filled hot, they are cooled with water in a cooling device.

In order to convey the pouch 1 through each of these steps, a gripper method has conventionally been adopted in which the pouch 1 is mainly gripped by the edges 1e on both sides near the mouth, but this method is for intermittent conveyance. Therefore, it is unsuitable for high-speed operations (for example, filling and sealing more than 150 pieces per minute). To solve this problem, a method of storing pouches in a holder has recently been proposed, but holders with conventional structures are difficult to transport, center the pouch, stretch the opening, and remove the filled and sealed pouch. There were some problems with sexuality, etc., and I was not satisfied.

It is an object of the present invention to solve the problems of the prior art described above.

In order to achieve the above object, the present invention provides a method for expanding a self-supporting pouch, filling the contents, heat-sealing the mouth part, etc.
A holder for storing the pouch, the holder having a storage part and an outer frame part provided on both sides of the storage part extending in the transport direction, the outer peripheral surface of which has a semicircular shape, and the storage part has a pouch. It has a relatively narrow end with a U-shaped cross section that accommodates the area near the side edge of the pouch, and a tapered part that expands outward from the inner end of the end, and the inner surface of the tapered part hangs down. and the lower end of the tapered part is in almost point contact with the pouch filled with the contents, the upper end of the inner end is filled with the contents, and the mouth part is completely sealed. The shape of the tapered portion is formed so as to be almost in contact with the pouch at the end, and the inner surface of the end portion extending in the conveying direction is formed into a tapered slope with a narrow lower part, and the storage portion is formed in the shape of the outer frame. The self-supporting device has a protruding portion that slightly protrudes from the storage portion in a direction parallel to the conveying direction, and a drainage hole is formed at the bottom of the storage portion and the outer frame portion. This invention provides a holder for storing sex pouches.

The present invention will be described below with reference to the drawings which are examples.

In FIGS. 3, 4, and 5, 2 is a holder, which is composed of a storage part 3 and an outer frame part 4, and is formed by injection molding of thermoplastic glass such as high-density polyethylene or polypropylene. be done.

The storage section 3 is relatively elongated in the conveyance direction (in the direction of the arrow), and has a relatively narrow end portion 3a having a U-shaped cross section and a relatively narrow width (Wl, FIG. 5) for storing a portion 1e near the side edge of the pouch. , end 3
It has a tapered portion 3b that expands outward from the inner end 3al of a, and a central portion 3C having a relatively wide width (W2) and connected to the tapered portion 3b. The inner surfaces of the tapered portion 3b and the central portion 3C are hanging down.

As shown in FIG. 6, the lower end 3bl of the tapered part 3b and the lower end 3cl of the central part 3C are filled with contents.
Therefore, the shape (5) of the storage part 3 is determined according to the size of the pouch 1 so that it makes almost point contact at points amcma' and e' with the bottom end lf of the pouch l sealed by heat sealing. There is.

Due to the dimensional relationships described above and described below, the filled and sealed pouch 1 can be easily removed from the holder 2. In addition, the point contact mentioned above and the width of the end 3a (
Pouch 1 positioned by the narrow lower end of Wl″)
There is no risk that the material will rattle within the storage section 3 during stretching or transportation.

Furthermore, the width W3 of the central portion 3c is determined to be approximately equal to the width of the bottom end 1f of the pouch, and therefore
almost makes point contact with the storage portion 3 at points b and b'.

8 and 9 are drawings showing the state after filling the pouch 1 with the contents 9 without storing it in the holder 2, but since the mouth 1d of the pouch is expanded by the contents 9, the holder 2 The width W3' of the portion 1f of the pouch located at the level of the upper end surface of the pouch is wider than the width W3 of the central portion 3C of the holder and has a circular shape. Therefore, if the center of the pouch 1 in the direction of travel is slightly shifted, wrinkles are likely to occur when the mouth portion 1d is stretched. The width w3 of the center part 3c is the bottom edge of the pouch (6
) By making the width approximately equal to the width of the portion 1f, the mouth portion 1d can be prevented from expanding when the contents 9 are filled, and stretching can be made easy and reliable.

Further, as shown in FIG. 7, the upper end 3 of the inner end 3al
a/, is filled with the contents so that the mouth portion 1d is completely distorted, that is, without wrinkles, etc., and the upper end surfaces 1d1 (Fig. 1) of both wall portions 1a are completely aligned. ) The outer surfaces of the pouch 1 in a sealed state (the inner surfaces of the mouth portions 1d may be in contact with each other without heat sealing) are in close contact (in this specification, substantially touching means This includes cases where they are very close to each other, and cases where there is light contact to the extent that the pouch 1 is not dented)
Thus, the shape of the storage section 3 is determined. Upper end 3aI
If the part 1g of the pouch 1 that came into contact with If it is stretched, the center will protrude during stretching, and both sides of the mouth portion 1d will not be stretched evenly, making wrinkles more likely to occur after stretching.

Note that as shown in FIG. 1, the boundary 1c of the heat seal portion 1c
Since I has an inverted arch shape, the lower part 1g' of the pouch 1 corresponding to the portion 1g is slightly recessed inward and away from the inner end 3al, as shown in FIG.

The inner surface 3a2 of the end portion 3a extending in the conveyance direction is formed into a tapered slope with a narrow bottom, and the width W1' of the upper end of the end portion 3a is made wider to facilitate the insertion of the pouch 1, and the lower end portion is made wider. The width Wl" is the width Wl" of the side edge 1a of the bottom end 1f of the pouch 1.
1, preferably about 10 to 2
0 mm and approximately 1 to 3 mm. Therefore pouch 1
The loading, centering, and retention of the parts are ensured.

The outer frame portion 4 has a common bottom surface 2a with the storage portion 3 to ensure the erect stability of the holder 2, and its outer peripheral surface is semicylindrical, and has a bottom surface 2a in common with the storage portion 3, and has a semicircular shape on both sides extending in the conveying direction of the storage portion 3. , the storage section 3 is provided so as to protrude in a direction parallel to the conveyance direction to form a protrusion 3d.

Therefore, as shown in FIG. 10, even if the holders 2 are brought into contact during conveyance, a gap 5 is formed between each boulder 2 due to the protrusion 3d, and the outer peripheral surface of the outer frame 4 has a curvature. Part 4
a is provided, it has the advantage that it can be easily transported by a transport means that utilizes the gap 5, such as a worm wheel 6.

Furthermore, a drainage hole 7 is formed at the bottom of the storage section 3 and the outer frame section 4. Therefore, water can be easily drained during the step of cooling the pouch 1 with water or washing the pouch 1 with water to remove dirt caused by adhering contents.

In order to reduce weight and save material costs, the outer frame portion 4 is hollow, and its height is also lower than that of the storage portion 3.

The holder of the present invention has excellent transportability using a worm wheel, etc., pouch centering performance, removal performance for filled and sealed pouches, drainage performance, etc., and is resistant to wrinkles during stretching or heat sealing. Effect (9) can be achieved in that a heat-sealed portion with an excellent appearance and no pores can be formed at the mouth portion.

[Brief explanation of the drawing]

Figure 1 is a front view of an example of a pouch applied to the present invention, Figure 2 is a front view of an example of a pouch applied to the present invention;
The figure is a bottom view of the pouch shown in Fig. 1 after being expanded, Fig. 3 is a perspective view of a holder which is an embodiment of the present invention, and Fig. 4 is a bottom view of the pouch shown in Fig. 1.
FIG. 5 is a longitudinal sectional view taken along the line V-■ in FIG. 4, and FIGS. 6 and 7 show the state of contact between the lower end and the upper end of the storage part with the pouch, respectively. An explanatory plan view, Fig. 8 is a front view showing the pouch filled with contents without storing it in the holder, and Fig. 9 is a diagram showing ■-I in Fig. 8.
FIG. 10 is a cross-sectional view taken along the X-ray, and a plan view showing an example of transportation of the pouch shown in FIG. 1. DESCRIPTION OF SYMBOLS 1... Self-supporting pouch, ld... Mouth part, 1e... Side edge vicinity part, 2... Holder, 3... Storage part, 3a.
...End, 3a1...Inner end, 3a2...Inner surface, 3b
. . . Taper portion, 3 b 1 . . . Lower end portion, 3 d . . . Projection portion, 7 . Figure 1 JP-A-59-62418 (4) Figure 3 Kushiwara)) L=gate. Ic + 'Ic - coarse - times one. Figure 4 Figure 6 Figure 5 Figure 7

Claims (1)

[Claims] (1) A holder for storing a self-supporting pouch in order to expand the pouch, fill the contents, heat seal the mouth, etc., and the holder includes a storage section, and (b) transportation of the storage section. The outer circumferential surface provided on both sides extending in the direction has a semicylindrical outer frame portion, and the storage portion has a relatively narrow end portion with a U-shaped cross section that stores a portion near the side edge of the pouch. , has a tapered portion that expands outward from the inner end of the end portion, the inner surface of the tapered portion is hanging down, and the lower end of the tapered portion is approximately in contact with the pouch filled with contents. The shape of the tapered part is formed so that it makes point contact and the upper end of the inner end almost contacts the pouch in a state where the contents are filled and the mouth part is completely sealed, The inner surface of the end portion extending in the conveying direction is formed into a tapered slope with a narrow bottom, and the storage portion has a protruding portion (1) that protrudes slightly from the outer frame portion in a direction parallel to the conveying direction. A holder for storing a self-supporting pouch, characterized in that a drainage hole is formed at the bottom of the storage part and the outer frame part.