JPS5843319B2 - Cap seal forming machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the amount of molding of a cap seal that covers the mouth and the outer periphery of the cap of bottles and other various containers.

Generally, a cap seal is formed by cutting a heat-shrinkable plastic tube, which is the material of the cap seal, to a certain length in the longitudinal direction.The cap seal is either placed directly over the bottle opening, or it is first shaped into a short cylindrical shape. After applying heat treatment to the eggplant molding head and forming it into a cylindrical molded cap seal, this molded cap seal is placed over the bottle mouth.
A method is adopted in which a heat treatment is applied to bring the cap seal or molded cap seal into close contact with the bottle mouth.

However, the plastic tube that is the cap seal material is usually rolled up on a reel in a flat, folded state, and strong creases are formed on both sides of the folded tube, causing the cap seal itself to deteriorate. Since the cap seal is folded into a flat state, in order to automatically cover the bottle mouth directly with the cap seal or the molding head, it is necessary to expand the cap seal into a cylindrical shape. For example, a sweeper that moves near and far from each other while sucking both sides of the cap seal is essential, but this sweeper must have the function of spreading the cap seal and covering the bottle mouth, molding head, etc. This has been a major problem with cap seal molding machines, such as the complicated structure and high manufacturing costs.

The present invention has been made in view of the above circumstances, and its purpose is to flatten a long plastic tube, which is a cap seal material, in a direction perpendicular to the direction in which it is folded. By cutting the cap seal into small pieces and supplying it to the bottle mouth or molding head, the cap seal can be opened using its own elasticity when fitting the cap seal to the bottle mouth, etc. It is an object of the present invention to provide a cap seal molding machine that can perform highly efficient molding, has a simplified configuration, and can significantly reduce the price of the molding machine itself.

EMBODIMENT OF THE INVENTION The present invention will be specifically explained below based on drawings showing embodiments thereof.

Figure 1 is a side view of a cap seal molding machine according to the present invention (hereinafter referred to as the machine of the present invention), Figure 2 is a front view taken in the direction of line ■-■ in Figure 1, and Figure 3 is an enlarged view of the main body of the molding machine. It is a perspective view, in which B is a bottle to which a cap seal is fitted, BC is a belt conveyor that constitutes a conveyance path for bottles B, and on one side of the belt conveyor is a star wheel for conveying bottles B at appropriate intervals. SH and Sn2 are vertically adjustable and fixed vertically to shafts S which are pivotally supported at appropriate intervals along the belt conveyor BC, and are vertically adjustable, respectively, and on the other side of the belt conveyor BC are Guide rail GL that regulates direction
is installed.

Bottle B is filled with contents and placed upright on the belt conveyor BC with the crown C fitted, and the star wheel SH
According to the rotation of 1 and SH2, they are sequentially and intermittently transferred in the direction of the outlined arrow while being separated by a required distance back and forth.

Facing above the bottle B transfer area, a cap seal molding machine main body 1 is arranged so as to be adjustable up and down along guide columns GC erected on the sides of the bottle B transfer area.

The molding machine main body 1 includes a machine box 11 containing a drive unit (not shown).
and/or a support rod (
(not shown), various constituent members for forming a cap seal are attached to a mounting plate 12 disposed parallel to the side wall of the machine box 11, respectively.

Reference numeral 13 denotes a knoll which is a supply part for a plastic tube T, and a rotating shaft 13a is set at the tip of a holder 1a extending from the machine box 11 so that it is high on the upstream side and low on the downstream side in the transport direction of the bottle B. It can be installed and removed at a tilted angle (usually 45 degrees), and is properly braked to prevent inert rotation.

A plastic tube T is wound around the reel 13 in a flattened state, and the tube T is pulled out from the reel 13 by drive rolls 8 and 18, which will be described later, and the reel 13 rotates accordingly. It has become.

Reference numeral 14.14 is a guide roll, and the shafts 14a are set parallel to the rotating shaft 13a of the reel 13 on a holder (not shown) extending from the machine box 11 and the mounting plate 12 above the moving area of the bottle B. The tube T pulled out from the reel 13 passes through the guide rolls 14 and 14 in a flat and folded state, and the direction of movement is changed to a substantially right angle to transfer the bottle B. The shaping mandrel 15 is sequentially shaped from the upper downstream side to the lower upstream side with respect to the direction.
Pressing rolls 16, 16, guide rolls 17, drive rolls 18, 18, perforation forming rolls 19°19, cutter 20, first. A short tube,
That is, it is molded into a cap seal so that it can be guided.

The shaping mandrel 15 is formed by compressing the upper and lower ends of a short cylindrical body in directions orthogonal to each other, and is formed into a generally hollow tetrahedral shape as a whole, between the guide rolls 14, 14 and the pinching rolls 16, 16. , in the tube T, the - ridge a is located above, that is, on the guide roll 14.14 side, so as to extend in the width direction of the folded tube T, and therefore also perpendicular to the ridge a. The ridge portion is interposed in such a manner that it extends downward, that is, on the side of the pinching roll 16°16, in a direction perpendicular to the direction in which the tube T is pressed and folded.

Therefore, the tube T that moves along the outer periphery of the shaping mandrel 15 from its upper end to its lower end is gradually expanded from a flat, folded state into a square cylindrical cross section, and then expanded in a direction perpendicular to the original direction of folding. flattened,
It is guided as it is between the pressing rolls 16 and 16.

The ridge of the shaping mandrel 15 is a pressing roll 16.1
Roll 1 without being bitten by 6.
It is designed to have an appropriate angle θ so that it can receive the support action and posture control action of 6 and 16.

The shape of the shaping mandrel 15 is not limited to a regular tetrahedron, but as long as it has ridges extending in the horizontal direction orthogonal to each other at the upper and lower ends, the cross-sectional shape of the middle part can be any shape, such as circular or square. There may be.

The pinching rolls 16, 16 are formed so that the length in the axial direction thereof is slightly shorter than the width dimension of the flattened tube T,
The shafts 16a, 16a, which are oriented orthogonally to the shafts 14a, 14a of the guide rolls 14, 14, and whose both ends are pivoted to the machine box 11 and the mounting plate 12, are inserted from both upper and lower sides of the flattened tube T to the left and right centers thereof. The tube T is held in a direction perpendicular to the original pushing and folding direction.

The center portion of the tube T is held by a pinching roll 16.
16, and both sides are slightly rounded due to their own elasticity.
．． 16 and is guided to guide rolls 17.17.

The guide roll 17°17 is the pinching roll 16,1.
6 axis 16a.

A shaft 17 passed between the machine box 11 and the mounting plate 12 parallel to 16a.
They are pivotally supported on the tubes a so as to face both ends of the upper surface of the tube T, respectively, and are adapted to roll into contact with both sides of the tube T to apply appropriate tension to the tube T.

Further, guide plates 17b, 17b facing the side of the movement range of the tube T are fixed to the side-to-side portions of the guide rolls 17.17 of the shaft 17a, and are separated by a dimension equal to the width dimension of the tube T. This is to correct the direction of movement of the tube T towards the roll 18.18.

The drive roll 18.18 is formed so that its axial length is slightly shorter than the width of the flattened tube T, and the drive roll 18. A motor (not shown) in the machine box 11 connected to one end of the shafts 18a, 18a is fixed to the shafts 18a, 18a, which are passed to the tube T, from both upper and lower sides of the tube T, facing the left and right center portions of the tube T, respectively. ) are intermittently driven in opposite directions to each other, so that the tube T is pulled out from the reel 13 by a predetermined size while being pinched in a direction perpendicular to the original pushing and folding direction.

The motor is connected to a photosensor PS that faces the movement area of the tube T between the reel 13 and the guide roll 14, and the photosensor detects trademarks etc. printed at a constant pitch on the tube T, and this detection signal is sent. Based on this, the motor is driven intermittently at a constant cycle.

The perforation forming roll 19.19 is the drive roll 18.
The shafts 18a, 18a of the drive roll 18.18 are disposed on one side of the drive roll 18. is provided around the tube T to face a portion near one end on the upper surface side of the tube T, and a cross section U is provided on the outer periphery of the other perforation forming roll 19 at a portion facing the blade 19a.
A groove 19b in the shape of a letter is provided around the circumference, and the blade 19a is inserted into the groove 19b from the top side of the tube T while pressing the position near one end of the tube T between both perforation forming rolls 19°19. - A perforation pewter M is formed in a straight line in the longitudinal direction at a position near the side.

The cutter 20 has a fixed blade 2 facing above the transfer area of the tube T.
0a, and a movable blade 20b that is also located below the transfer area of the tube T and faces downstream of the fixed blade 20a in the transfer direction of the tube T. ), the drive roll 18.
Each time 18 is stopped, in other words, the drive roll 1
8.18 Each time the tube T is paid out a predetermined length below, the movable blade 20b moves horizontally toward the fixed blade 20a and cuts the tube T to a fixed length in the longitudinal direction. Curved blades 20a', 20b' curved slightly upward are formed at positions facing the perforation M in the tube T, and these curved blades 20a', 2 ob' A tongue C81 for cutting the cap seal C8 along the perforation M is formed at the upper end of the tube cut to a fixed size, that is, the cap seal C8, as shown in FIG. That's how it is.

In addition, a communication hole is formed in the movable blade 20b at a portion facing the widthwise center of the tube T, which passes from the back side of the movable blade 20b (opposite side to the blade edge) through the inside of the movable blade 20b and opens on the upper surface near the blade edge. One end of the communication hole that opens on the upper surface near the cutting edge serves as a pressurized air injection port 22a, and the other end that opens on the rear end surface of the movable blade 20b serves as a pressurized air supply port.
One end of a pressure air supply hose 22b is connected to this pressure air supply port, and the other end of the hose 22b is connected to a valve 1 as shown in FIG.
The movable blade 20b is connected to an air pump (not shown) through
At the same time as the blade reaches the position where it finishes cutting the tube T, or around the same time, the valve V is opened, and the pressure is released from the movable blade 20b.
The liquid is sprayed from the upper surface of the tube toward the end of the tube T.

The pressurized air is injected to the end of the tube T, which is closed due to static electricity generated when the tube T is cut.
The lower end of the tube T is opened, and from this lower end opening flows upward into the tube T, the upper and lower walls of the tube T are released from the upper and lower walls at the perforation M forming part, and the driving rolls 18, 18, Perforation forming roll 19
, 19, guide rolls 17.17
The tube passes through the transition area other than the pressing and pinching part of the pressing roll 16.16, passes through the gap between the tube T and the shaping mandrel 15, and reaches the transition area of the guide roll 14.14 with respect to the tube T. This serves to lubricate the relative movement between the T and the shaping mandrel 15.

The guide 21 includes a pair of lower guide members 211° 211 and one upper guide member 212, and the lower guide members 211, 211 are such that the bottle opening B' can pass therethrough, and the width dimension of the cap seal C8 is the same as that of the cap seal C8. The mounting rods 213 are arranged so as to be located on the extension of the tube T in the transfer direction with a narrower dimension than
The upper guide member 212 is fixed so that its inclination angle with respect to the transport direction of the bottle B can be adjusted, and the upper end of the upper guide member 212 is connected to the lower guide members 211, 211 so that its upper end faces above the left and right center portions of the lower guide members 211, 211. The fixed blade 18b of the cutter 18 is screwed to the back surface of the fixed blade 18b in alignment with the upper end of the blade 211.211.

Each of the lower guide members 211, 211 is formed into a cross-sectional shape, and includes a lower surface receiving piece 211a that supports both lower surfaces of the cap seal C8, a side guide piece 211b that guides both sides of the cap seal C8, and a cap seal C8.
The upper guide member 212 is provided with a stopper piece 211c that receives the lower end opening periphery of the lower guide member 21.
The length is approximately half of the total length of L211, the lower end portion is located at the vertical center of the lower guide members 211, 211, and the middle portion is curved in an arc shape so as to be convex upward.

The tube T is flattened in a direction orthogonal to the original folding direction and is fed out from the exit side of the drive roll 18, 18, between the cutters 20, to approximately the center of the guide 21 under the ground, and at this position, the cutter 20 The tube is cut to a certain size as shown in FIG. It is held by being squeezed in orthogonal directions.

A vertical long hole 21 is provided in the middle part of the upper guide member 212.
2a is bored, and a second pressurized air injection part 2 is provided to face the left and right center portions of the upper surface of the cap seal C8.
Three nozzles N face diagonally downward with respect to the guide 21.

The nozzle N is connected to the first pipe through the hose 23a as shown in FIG.
The cutter 2 is connected to the hose 22b in the pressure air injection part 22 of the cutter 2 through a shared valve
At the same time as the tube T is cut by the nozzle N, pressurized air is injected from the nozzle N to the upper outer circumferential surface of the cap seal C8, and the cap seal C8, which has adhered to the cutter, guide 21, etc. due to static electricity and is unlikely to fall by itself, is moved along the guide 21. Then, lower the cap seal C8 to a position where the lower end contacts the stopper piece 211c.

When the cap seal C8 is lowered to the lower end of the guide 21,
The lower surfaces of both sides of the cap seal C8 are the lower guide members 211.
．． 211 is supported by the lower surface receiving piece 211a, but on the upper surface side, the upper guide member 212 is supported by the lower guide member 21L2.
11, the upper end of the upper surface of the cap seal C8 is pressed by the upper guide member 212, and the lower end of the cap seal C8 faces the transfer area of the bottle B due to its own elasticity and is directed upstream. The opening will be diagonal.

As mentioned above, the bottles B are intermittently transported by the required size by the belt conveyor BC and star wheels SH, SH2, and the bottles B that have stopped slightly upstream from the lower end of the guide 21 are then transferred from this position to the guide 21. The guide 21 passes between the side lower guide members 211, 211 in
The guide 21 moves slightly downstream and stops.
Since the cap seal C8 is held with its opening diagonally facing upstream in the transport direction of the bottle B, the bottle opening B' passes under the upper edge C82 at the lower end opening of the cap seal C8. As a result, the cap seal C8 is pulled off from the guide 21 and moved, so that the cap seal C8 is placed over the bottle opening B' in the state shown in FIG. 4.

The cap seal C8 placed over the bottle opening B' returns to its original folded state due to the elasticity of the folds formed when it is wound around the reel 13, and is locked onto the bottle opening B'. Become.

When the belt conveyor BC stops, the drive roll 18.18 is rotated again in synchronization with this, and the tube T is transferred to the reel 1.
3, passed through the guide rolls 14, 14, passed the outer periphery of the shaping mandrel 15 interposed in the tube T, was flattened in a direction perpendicular to the initial folding direction, and was then pressed and pinched by the pinching rolls 16 and 16. In this state, it passes through guide rolls 17.17 to drive rolls 18.18, and when passing through perforation forming rolls 19, 19, a straight line is formed along the longitudinal direction of the tube T at a position near one side of the tube T. A perforation M is formed in the tube T with the perforation M formed therein.
When the tube T reaches the upper and lower center position of the cutter 20 and is fed out a predetermined distance downstream of the cutter 20, the drive roll 18.
18 is stopped, and at the same time cutter 20 is activated.
When the movable blade 20b of No. 0 reaches the position where it finishes cutting the tube T, the valve V is activated and the movable blade 20b of No. 0 reaches the position where it finishes cutting the tube T. Second pressurized air injection part 22゜2
Pressure air is injected from 3 to the lower end of the tube T and the upper surface of the cap seal C8, opening the lower end of the tube T, blowing pressure into the tube T, and lowering the cap seal C8 to the lower end of the guide 21.

Belt conveyor BC again, star wheel S H,, S
H2 is driven, the next bottle B passes through the guide 21,
A cap seal C8 is placed over the bottle opening B'.

Such operations are repeated in sequence, and each bottle opening B' is covered with a cap seal C8.

A horizontal plate and a heater H are arranged in the transfer area of the bottle B after being covered with the cap seal C8, and when the bottle B passes under the horizontal plate, the cap seal C8 closes the bottle mouth B.
' to a certain depth, and then heat-treated by a heater H to bring it into close contact with the bottle opening B'.

In addition, if a spare cap is attached to bottle B to be used after removing the crown C of bottle B, insert your hand into the cap seal C8 placed on the bottle opening B' between the horizontal plate and the heater H. Drop in the spare cap by operation or by the spare cap supply amount (not shown);
Cap seal C8 by heat treatment with heater H
Heat shrink the spare cap so that it is held integrally on the crown C.

FIG. 5 is a side view showing another embodiment of the machine of the present invention, in which the cap seal C8 is not as it is in a state in which a plastic tube that is the cap seal material is cut to a fixed length in the longitudinal direction, but in a bottle. The case is shown in which it is provided as a cylindrical molded cap seal to facilitate attachment to the mouth or the like.

That is, in order to convert the bottles into a belt conveyor for transporting the bottles, a cylindrical or truncated conical forming head 30 whose outer diameter is slightly larger than the outer diameter of the bottle opening to be covered is attached to the outer peripheral surface of the endless bell 1-EB. The molding head 3 is arranged and fixed at regular intervals.
0 is intermittently moved in the direction of the white arrow at regular intervals.

Below the movement range of the molding head 30 is a guide column C8.
A cap seal molding machine main body 31 is arranged so as to be adjustable up and down.

The molding machine main body 31 is the molding machine main body 1 shown in FIGS. 1 to 3 above.
are exactly the same, and corresponding parts are given the same numbers.

Cap seal C formed by cutting tube T to a certain size
8 is held toward the upstream side in the moving direction of the molding head 30 with its lower end opened in the guide 21 as in the above-described embodiment, and the molding head 30 is held between the lower guide members 211 of the guide 21. Cap seal C8 when passing
By passing under the upper edge C82 and engaging the lower edge C83 and peeling off the cap seal C8 from the guide 21, the cap seal C8 itself is automatically placed on the molding head 30.

When the cap seal C8 passes under the horizontal plate attached to the molding machine main body 31, it covers the outer periphery of the molding head 30 to a substantially constant depth (usually 60 to 70% of the total length of the cap seal).
), when it reaches the heater H, it is thermally contracted by heating by the heater H, and the cap seal C8 has a cylindrical or truncated conical shape similar to the outer shape of the forming head 30, and the upper end has a reduced diameter as shown in FIG. A molded cap seal C8' is formed.

Molding head 3 covered with molding cap seal C8'
0 passes through heater H and remains on the opposite side endless belt EB
When the molding head 30 is positioned horizontally in the process of moving toward the drive wheel DW side and returning to the upright state again, pressurized air is injected from the periphery of the head of the molding head 30, and the molded cap seal C8' closes to the reduced diameter portion. They are separated from the molding head 30 by the pressure applied to C8'4, and stored in a stacked state in a stocker (not shown) as they are.

The molded cap seal C8' thus formed is successively placed on the bottle mouth in a separate process manually or with a fitting device, and then heat-treated with a heater again to cause heat shrinkage and tightly adhere to the bottle mouth. It will be done.

Such a machine of the present invention is provided with a ridge portion a extending in the width direction of the tube T that is folded toward the upper end in the tube that is flattened, and a ridge portion a that extends in the width direction of the tube T that is folded toward the upper end side, and a ridge portion a that extends in the width direction of the tube T that is folded toward the upper end side, and a ridge portion a that extends in the width direction of the tube T that is folded toward the upper end side. By interposing shaping mandrels 15 each having a ridge portion having a length approximating the width of the tube,
The tube T is guided around the outer periphery of the shaping mandrel 15 and is shaped into a flat shape in a direction perpendicular to the original pressing and folding direction, so that the flattening direction of the tube T can be easily and smoothly changed.

In addition, there is disposed below the shaping mandrel 15 a pressing roll 16° 16 whose axial length direction is parallel to the lower edge of the shaping mandrel 15, so that the shaping mandrel 15 itself has a tube T-shape. The orientation of the shaping mandrel 15 with respect to the tube T does not change due to the guiding action and supporting action as well as the supporting action and posture controlling action of the pinching rolls 16.16, and the tube T is pushed in a direction perpendicular to the original folding direction. Not only can it be accurately flattened, but it can also be flattened in that state by pressing the pinch roll
The guide rolls 17.171. The lower end of the cap seal C8 held by the guide 21 is guided through the drive roll 18° 18, the perforation forming rolls 19, 19, and the cutter 20 to the guide 21, and the lower end of the cap seal C8 is pulled into the bottle B1 by the elasticity of the cap seal itself. Molding head 3
This makes it possible to hold the cap seal C8 open toward the upstream side in the direction of movement of the bottle B1, and when fitting the cap seal C8 to the bottle B1 molding head 30, the cap seal C8 can be opened very easily and with a simple configuration. .

Furthermore, even if static electricity is generated when the tube T is cut due to the pressurized air from the first pressurized air injection part 22, the lower end of the tube T can be easily opened against this electrostatic force, and the pressurized air flows inside the tube T. It separates the molded part of the perforation M where the upper and lower walls are attached, and also performs a lubricating action between the tube T and the shaping mandrel 15.

In addition, the second pressurized air injection unit 23 moves the cap seal C8, which is lightweight and tends to feed unreliably, from above and below along the guide 21 to the guide 2, which is the movement area of the bottle B1 forming head 30.
It can be reliably moved below 1.

Furthermore, the guide 21 includes a pair of lower guide members 211°211.
and an upper guide member 212 that is shorter than this, and when the cap seal C8 is transferred below the guide 21, the upper surface side of the cap seal C8 (J upper guide member 212 Since the cap seal C8 is pressed down, the lower end side of the cap seal C8 is automatically opened by its own elasticity, and the means for opening the cap seal C8 is extremely simplified compared to the conventional case where a sweeper or the like was used. It became a thing.

FIG. 7 shows another configuration of the perforation forming section in the machine of the present invention, in which the perforation forming blade 24 is combined with the horizontal blade 24a and the vertical blade 24b in a direction that intersects with the air cylinder 2.
5 is fixed to the mounting plate 25b provided at the tip of the operating rod 25a,
A tube T is placed facing one side of the movement area of the tube T and facing the mounting plate 25b on the other side of the movement area.
It is configured by disposing a regulating fitting 26.

The air cylinder 25 is synchronized with the motor for the 7 driving rolls 18.18, and is operated every time the motor stops, and the operating rod 25a is extended to create a perforation M1 in the tube T by the horizontal blade 24a and a vertical blade 24b. Perforations M2 are formed along the length of the tube T at a constant pitch.

The horizontal blade 24a is slightly longer than the width of the tube T, and the vertical blade 24b is located near one end of the horizontal blade 24a, that is, as shown in FIG. 8, the tongue C81 of the cap seal C8.
It is formed to have a length sufficient to form a perforation M2 between the perforation M1 by the horizontal blade 24a and the upper edge of the cap seal C8 at positions corresponding to both sides of the cap.

When a perforation is formed by forming a □ perforation, the crown C of the cap seal C8 that is brought into close contact with the bottle mouth by pulling the tongue C81.
It becomes possible to cut out only the part located on the outer periphery of.

As described above, in the machine of the present invention, pressurized air is injected from the first pressurized air injection part toward the end of the uncut tube before and after cutting the cap seal, or immediately after cutting, and static electricity is generated at the cut part. Alternatively, the end of the tube, which tends to be stuck together due to the formation of perforations, is opened using pressure air, and the pressure air is then allowed to rise inside the tube to hold the tube in a cylindrical shape, thereby holding the tube open in the cut state as a cap seal. Furthermore, in the machine of the present invention, pressurized air is injected from the second pressurized air injection part onto the outer circumferential surface of the upper end of the cap seal, so that the light and flexible cap seal, which tends to be restrained by static electricity, etc., can be inserted into the object. The cap seal can be moved while maintaining a predetermined posture in the movement range of the object to be fitted, and in combination with the configuration of the guide, the cap seal can be held open in a cylindrical shape in the movement area of the object to be fitted. The present invention has excellent effects such that the seal fitting operation can be performed reliably without malfunction, the overall configuration is simplified, and the equipment cost is low.

[Brief explanation of the drawing]

Fig. 1 is a side view of the present invention machine, Fig. 2 is a side view taken in the direction of the line ■-■ in Fig. 1, Fig. 3 is an enlarged perspective view showing the cap seal forming process, and Fig. 4 A shows the tube. FIG. 4 is a plan view of the cap seal obtained by cutting to size; FIG. 4 is a perspective view showing the cap seal expanded into a cylindrical shape; FIG. , FIG. 6 is a perspective view of the molded cap seal, FIG. 7 is a perspective view showing another configuration of the perforation forming part in the machine of the present invention, and FIG. 8A is a perspective view of the perforation forming part shown in FIG. FIG. 8 is a plan view of the cap seal shown in FIG. 1... Molding machine body, 13... Reel,
15... Shaping mandrel, 16... Pressing mill roll, 18... 1 drive roll, 19.
...Perforation forming roll, 20...Cutter, 21...Guide, 22...First pressurized air injection part, 23...First 2 pressure air injection part, 31
...Molding machine body, B...Bottle, B'.
...Bottle opening, C8, C8'... Molded cap seal, T...Tube.

Claims (1)

[Claims] 1. A supply section for a flexible tube that is pressed into a flat shape as a cap seal material, a roll that sequentially presses and pinches the tube from a direction perpendicular to the direction in which the tube is folded, and the roll and the supply section. a shaping mandrel that is interposed in the tube and flattens the tube in a direction perpendicular to the direction in which the tube is pressed; and a sizing mandrel that is sized in the longitudinal direction to form the tube flattened by the shaping mandrel into a cap seal. The cutter to be cut and the flexible cap seal obtained by cutting the tube are guided one by one to the movement area of the object to be fitted, and the lower end of the cap seal is placed on the upstream side of the movement area of the object to be fitted. a guide that holds the opening toward the
Immediately after cutting by the cutter, a first pressurized air injection unit injects pressurized air toward the lower end of the tube to feed pressurized air into the tube to keep the tube open, and a first pressurized air injection unit that injects pressurized air toward the lower end of the tube to keep the tube open, A cap seal forming machine comprising: a second pressurized air injection section that injects pressurized air to the outer periphery of the cap seal in order to move the cap seal to a position facing a moving area of the to-be-fitted object. 2. The cap seal forming machine according to claim 1, wherein the first pressurized air injection section is attached to the movable blade of the cutter. 3 Cutting the tube with the cutter, 1st. 2. The cap seal forming machine according to claim 1, wherein the pressurized air injection from the second pressurized air injection section is performed substantially simultaneously. 4. A supply section for a flattened tube that is a cap seal material, a roll that sequentially presses and pinches the tube from a direction perpendicular to the direction in which the tube is pressed, and a roll that is interposed within the tube between the roll and the supply section. a shaping mandrel for flattening the tube in a direction perpendicular to the folding direction; a cutter for cutting the tube flattened by the shaping mandrel to a fixed length in the longitudinal direction to form a cap seal; A lower guide member and a lower part are arranged to be inclined diagonally downward from the downstream side to the upstream side with respect to the movement area of the fitted object, separated by a required dimension to allow the object to pass, and support the lower surface side of the cap seal. An upper guide member is provided above the guide member and supports the upper end of the upper surface of the cap seal, and the cap seal is pressed from the direction in which the rolls press and hold the cap seal, so that the lower end of the cap seal is directed toward the upstream side of the movement area of the fitted object. a guide that holds the opening; a first pressurized air injection part that injects pressurized air toward the upper end of the tube to feed pressurized air into the tube immediately after cutting by the cutter; A cap seal forming machine comprising: a second pressurized air injection section that injects pressurized air onto the outer circumferential surface of the upper end of the cap seal to move it to a position facing a movement area. 5. The cap seal forming machine according to claim 4, wherein the guide is disposed diagonally downward by 30 to 6 degrees from the downstream side to the upstream side with respect to the movement area of the fitted object. 6. The cap seal forming machine according to claim 4, wherein the lower guide member is formed in a cross-sectional shape with a stopper piece at its lower end.