JPH0421531A - Device for molding bottle mouth - Google Patents

Abstract

PURPOSE:To prevent the irregular baking, half baking, etc., of a glass cylinder and efficiently mold the mouth of the bottle by rotation-carrying the glass cylinder on a turn-table with a rotary intermittent carrier to form the mouth of a glass bottle. CONSTITUTION:In the bottle mouth-forming device a glass cylinder 8 is carried with a rotary intermittent carrier for rotating the glass cylinder 8 and for intermittently transferring the glass cylinder and the mouth of a glass bottle is simultaneously formed. The rotary intermittent carrier comprises a turn table 2, a bearer 3 for the glass cylinders 8 and a driving gear 18. The driving gear 18 is linked to a motor 14 and concentrically and relatively rotated with the turn table 2 to form a tooth surface 19 engaging with the teeth of the bearer 3. The bearer 3 is equipped with gears 34 radially pivotally supported on the turn table 2 at the same distance. The table 2 is linked to an intermittently rotationc-driving drvice 23 disposed on a substrate 1 and intermittently rotated.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention provides a rotary type intermittent conveyance device that intermittently moves a cylindrical work while rotating it on a turntable, and a rotary type intermittent conveyance device that conveys a glass tube. The present invention relates to a bottle neck forming device for forming a bottle neck on a glass cylinder.

(Prior Art) Bottles have been manufactured by processing glass cylinders according to the steps shown in FIG. 12.

First, one end of the glass cylinder (8) is heated with a burner (94) to soften it, and a forming roller (7) is pressed against the circumferential surface of the heated part to form a bottle mouth (80).

The other end of the glass tube (8) is also attached to the bottle opening (
80).

The center of the glass tube (8) is burned out with a burner (94a). The burned edges soften and close naturally.

In the next step, the end of the closed cylinder is further heated and softened by a burner (94b) to form a bottle bottom.

Through the above steps, two bottles (81) shown in FIG. 11 can be manufactured from one glass cylinder (8).

Conventionally, a glass tube (8) is linearly and intermittently conveyed by a conveying device (9) shown in FIG. 14, and a bottle mouth (80) is formed at a stop position of the glass tube (8).

The conveyance device (9) has a plurality of rotating rollers (91) (91) arranged at equal pitches in a horizontal plane so that some of them overlap, and a horizontal position in a vertical plane perpendicular to the rotating rollers (91). The upper edge of the feeding plate (92) has a recessed receiving part (93) corresponding to the arrangement pitch of the rotating rollers (91). has been done.

As shown in FIG. 14A, when the feed plate (92) is in the lowered position, the glass tube (8) is moved between two adjacent rotating rollers (91).
) (91), and rotates following the rotation of the rotating roller (91).

As shown in FIG. 14B, the feed plate (92) rises in a circular motion in a horizontal position, and the glass cylinder (8) is placed on the support part (93) and lifted from the rotating roller (91), and the feed plate (92) is lifted up from the rotating roller (91). 92)
When the roller is lowered, the receiver is passed to the next rotating roller (91).

As described above, each time the feed plate (92) moves up and down in a circular motion, the glass tube (8) is conveyed one pitch at a time.

During the movement of the glass tube (8), the end of the glass tube (8) is heated and softened by a burner placed below the transition path of the end of the glass tube (8).

A bottle opening (80) is formed while the glass cylinder (8) is rotating on a rotating roller (91).

(Problem to be solved by the invention) The feed plate (92) rotates the glass cylinder (8) with the rotating roller (91).
While lifting it from the glass tube (8), the rotation of the glass tube (8) stops,
For this reason, the circumferential surface of the glass cylinder is not heated uniformly, causing uneven or uneven firing, which may result in a distorted bottle opening.

In addition, the glass tube (8) is moved between the rotating roller (91) and the feed plate (9).
2), the glass tube (8) will be damaged by the impact when the glass tube (8) is transferred, and if the conveyance speed is increased, the glass tube (8) will not be stably moved by the rotating roller. (91) and the feed plate (92), the glass cylinder (
8) Misalignment occurs.

Therefore, there was a problem that the glass tube (8) had to be conveyed at low speed, resulting in low productivity.

The present invention provides a rotary conveyance device that can solve the above problem by rotating a workpiece such as a glass tube while supporting the workpiece on an intermittently rotating turntable;
A bottle neck forming device using the conveying device will be clarified.

(Means for Solving the Problems) The rotary intermittent conveyance device of the present invention has 1. A turntable (2) is horizontally arranged on a base (1) and rotates intermittently in conjunction with an intermittent rotation drive device (23), and gears (34) are supported on the turntable (2) at equal intervals radially. and a gear (34) of the workpiece pedestal (3), which is connected to a motor (14) and arranged concentrically with the turntable (2) so as to be rotatable relative to the table.
A drive gear (18) is formed with a tooth surface (19) that meshes with the drive gear (18).

In addition, the bottle mouth forming device is arranged on the rotary intermittent conveying device, the base (1) of the device, and a turntable (2).
) A preforming device (4) that preforms a bottle mouth on a glass cylinder (8) supported by a workpiece pedestal (3) on the top of the screen, and a preformed bottle installed downstream of the preforming device (4). A finish-forming device (5) that performs finish-forming of the opening; and an end portion of the glass tube (8) that is disposed on the upstream side of the pre-forming device (4) and between the pre-forming device (4) and the finish-forming device (5). It consists of a burner (94) that heats the

(Operation and Effect) The turntable (2) rotates intermittently, and the gear (
34) is meshed with a drive gear (18) that rotates relative to the turntable (2), so each workpiece pedestal (3
) always rotates.

Therefore, if a workpiece such as a glass cylinder (8) is placed across the adjacent workpiece pedestals (3) (3), the workpiece pedestals (3)
The workpiece rotates in a direction opposite to that of the workpiece pedestal (3).

As mentioned above, the workpiece can be fed intermittently while constantly rotating.

In addition, since the workpiece can be transported intermittently while it is placed on the turntable (2), the conventional rotating roller (91) and feed plate (
92), unlike the case where the receivers are transferred alternately, the problem of impact during transfer does not occur, and the intermittent feed speed can be increased.

In addition, the above rotary type intermittent conveying device allows glass tubes (
In an apparatus that forms a bottle mouth (80) while intermittently conveying a glass tube (8), when heating the tip of the glass tube (8) with a burner (94) installed on the base (1), the glass tube (8) is heated. 8) is constantly rotating, so there will be no burning spots or side burns.

When the work is stopped corresponding to the preforming device (4) and the finish forming device (5), preforming and finish forming of the bottle mouth (80) can be performed to efficiently form the bottle mouth.

(Example) Mouth ≦ (1st 2) FIG. 1 is a plan view of a bottle mouth forming device, and FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1.

The bottle opening forming device is equipped with an intermittent rotating turntable (2), which will be described later.
) and a glass tube loading station S in order in the rotational direction of the table. , first preforming station S1,
A second preforming station S2, a final forming station Ss, and a take-out station S4 are provided.

The first preforming station S, the second preforming station S2, and the final forming station S8 are provided in two adjacent locations at equal pitches.

At each preforming station and final forming station,
A first preforming device (4), a second preforming device (40), and a finish forming device (5) are provided.

The turntable (2) moves two pitches at a time, and two glass tubes (8) on the turntable (2) are processed at each preforming station and finish forming station.

At the first preforming station S, as shown in FIG. 13A, the glass tube (8) is formed by the first preforming roller (42).
Press the tip of the bottle to form a bottle neck (82).

At the second preforming station S2, the bottle neck (82) is made thinner and a bottle shoulder (83) is formed, as shown in FIG. 13B.

At the finishing forming station S3, as shown in FIG. 13C, the bottle mouth (
80), finish the inner diameter, outer diameter, bottle neck (82), and bottle shoulder (83).

On the upstream side of each station, a burner (94) is disposed corresponding to a position below the transition path of the outer end of the glass tube (8).

Turntable (1st 2nd 3rd) A cylindrical support (11) is provided protruding through the center of the upper surface of the base (1), a rotating shaft (work 2) is supported inside the support, and the outside of the support is A turntable (2) and a drive gear (18) are supported on the support with the support as the center of rotation.

A motor (14) is connected to the lower end of the rotating shaft (12) via a gear transmission means (13), and a gear (15) is provided protruding from the center of the shaft (12).

A cutout window (17) is provided in the cylindrical support (11), an intermediate gear (16) is pivotally fixed to the cutout window (17), and the intermediate gear is attached to the gear (15) of the rotating shaft (12). and drive gear (1
It meshes with the internal teeth (lO) formed in 8).

The drive gear (18) has tooth surfaces (19) radially arranged on the upper surface of the outer periphery.
is formed.

A turntable (2) is disposed below the drive gear (18) and is linked to the intermittent rotation drive device (23) via a gear transmission means (24).

In the embodiment, the turntable (2) rotates counterclockwise and the drive gear (18) rotates clockwise, but the invention is not limited to this, and the turntable (2) and drive gear (18) rotate relative to each other. If so, the direction of rotation does not matter.

Workpiece pedestals (3) are arranged radially on the upper surface of the outer periphery of the turntable (2). The arrangement pitch of the workpiece pedestal (3) is:
This corresponds to the arrangement pitch of each work station.

Each workpiece pedestal (3) has a support shaft (31) supported on a support block (25) protruding from the turntable (2), a large roller (32) at the outer end of the shaft, and a small roller at the middle part. (33
), and has a gear (34) at its inner end that meshes with the tooth surface (19) of the drive gear (18).

The large roller (32) and gear (34) are fitted and fixed to the support shaft (31), and the small roller (33) is fitted to the support shaft (31) so as to be freely rotatable.

Since the turntable (2) and the driving gear (18) rotate relative to each other, the large roller (32) is forced to rotate by the gear (34), but the small roller (33) is free.

Therefore, when the glass cylinder (8) is placed astride the large rollers (32) (32) and the small rollers (33) (33) of the adjacent work holders (3) (3), the glass cylinder (8) rotates smoothly following the rotation of the large roller (32).

As mentioned above, the large rollers (32) (32) and the small rollers (33) (33) of the adjacent work pedestals (3) (3)
When the glass tube (8) is placed astride the glass tube (8)
Rollers (32) (33) are held so that they are held slightly backward.
) is determined.

As mentioned above, the first preforming device (4) is installed in the first preforming station S1, and the second preforming device (4) is installed in the second preforming station S2.
A preforming device (40) is provided.

As shown in FIG. 4, the first preforming device (4) has a base (
1) A lifting rod (41) is provided on the top so that it can be raised and lowered, a first preforming roller (42) is installed at the upper end of the rod, and a cam roller (42) is installed at the lower end of the rod.
43) is pivoted and biased upward by a spring (45).

The first preforming roller (42) has its axis horizontally directed toward the center of the turntable (2).

A cam (44) is provided on the base (1) above and in contact with the cam roller (43).

The cam (44) is connected to a rotating device (not shown), and rotates the first preforming roller at the timing when the glass tube (8) on the turntable (2) stops at the first preforming station S. (42) is pressed onto the outer periphery of the glass tube (8).

A presser roller (46) that presses the glass cylinder (8) on the first preforming station S1 downward is disposed above the turntable (2) so as to be movable up and down.
) is connected to a lifting device (47) such as a cylinder.

In synchronization with the timing of the rise of the first preforming roller (42), the presser roller (46) descends and presses the glass tube (
8) is pressed against the workpiece pedestal (3) to prevent the glass tube (8) from lifting and to ensure that the glass tube (8) follows the rotation of the large roller (32) of the workpiece pedestal (3). Let me,
The large roller (32) is rotated in the opposite direction.

When the first preforming is completed, the presser roller (46) rises and does not interfere with the movement of the glass tube (8).

The second preforming device (40) includes the first preforming device (
4), the only difference being the outer peripheral shape of the forming roller, and since the configuration is the same, the explanation will be omitted.

Further, depending on the shape of the bottle mouth (80), the second preforming device (40) may be omitted and the preforming may be completed in one step.

A finishing forming device (5) is provided in the finishing forming station S3 corresponding to the transition path of the glass tube (8).

The finishing forming device (5) has a turntable (
2) A stereotactic block (53) is provided opposite the stop position of the upper glass tube (8), and the slide shaft (54) can be slid through the block toward the rotation center of the turntable (2). to be deployed.

A round shaft-shaped head (55) that regulates the inner diameter of the bottle mouth (80) is provided at the tip of the slide shaft (54).
) to finish the end face of the bottle mouth (80).
56) is provided protrudingly orthogonally to the head (55).

A leg piece (57) is provided to protrude downward from the outer end of the slide shaft (54), a cam roller (58) is pivotally fixed to the lower end of the leg piece (57), and the cam roller (58) is attached to the front cam (59). ).

The slide shaft (54) is urged toward the turntable (2) by a spring (not shown) and slides by rotation of the front cam (59).

There are vertical guide shafts (5) on both sides of the fixed block (53).
1) (52), and two slide blocks (61) (62), (71) are provided on each vertical guide shaft (51) (52), respectively.
) (72) is slidably fitted.

Slide block (61) on one vertical guide shaft (51) side
) (62) has arm pieces (63) (63) protruding horizontally toward the turntable (2) side, the tips of each arm piece are bent inward at right angles, and the bent pieces (64) ( 64), two supporting rollers (6) are disposed vertically facing each other.

Each support roller (6) is rotatably pivoted to a bending piece (64), and a turntable (2) is provided between the four support rollers (6).
) can be held with the glass tube (8) on both sides, allowing the glass tube (8) to rotate freely and keeping the center of the glass tube (8) at a constant height.

Slide block (71) on the other vertical guide shaft (52) side
) (72) has a short arm piece (73) (73) protruding horizontally towards the turntable (2) side, the tip of the arm piece (73) is bent inward at right angles, and the bent piece (74) ) (74)
A pair of forming rollers (7) (7) are arranged vertically facing each other.

Each forming roller (7) is located closer to the vertical guide shafts (51, 52) than the support rollers (6, 6), and between the support rollers (6, 6).

Swing levers (65) are provided on both sides of the fixed block (53).
(75) is arranged with its central part pivotally fixed, and the upper slide block (61) on the side of the support roller (6) and the front end of the swing lever (65) are also connected to the lower slide block (62).
) and the rear end of the swing lever (65) are supported and connected by links (66) and (67) of the same length, respectively.

The upper slide block (71) on the forming roller (7th side) and the front end of the swing lever (75), and the lower slide block (72) and the rear end of the swing lever (75) are of the same length. Connect with links (76) and (77).

Therefore, the support rollers (6) (6), the forming rollers (7) (
7) approach and leave symmetrically from above and below with respect to the extension line of the head (55).

As mentioned above, in the finish forming device (5), the center between the upper and lower support rollers (6) (6), the center between the forming rollers (7) (7), and the center of the head (55) are always aligned. Therefore, when changing the shape of the bottle mouth (80), it is only necessary to replace the forming roller (7).

Support pieces (68) (78) are provided on the two lower slide blocks (62) (72) to protrude downward, and each support piece (
68) The lower end of (78) pivotally fixes cam rollers (69) (79) to the first preforming device (4), and
9) Bring (79) into contact with the cams (60) and (70). Cam rollers (69) are installed on the slide blocks (62) (72).
) (79) are connected to the cams (60) (70) by a spring (not shown).

The front cam (59) that slides and drives the cams (60) and (70) and the head (55) has a single rotating shaft (5).
o), and the head (55
) moves forward, supporting roller (6) (6), forming roller (
7) Drive so that (7) approaches symmetrically from above and below.

The finishing forming station Ss also has a correction preforming device (4
) in the same manner as the holding roller (46) of the large roller (
A presser roller (not shown) is provided to follow the rotation of 32).

The movable turntable (2) of the equipment rotates intermittently, and the gear (
34) is meshed with a drive gear (18) that rotates relative to the turntable (2), so each workpiece pedestal (3
) always rotates in the same direction.

Therefore, when the glass tube (8) is placed across the adjacent workpiece pedestals (3) (3) at the loading station S0, the glass tube (8) follows the workpiece pedestal (3) and receives the workpieces. It rotates in the opposite direction to the table (3).

Even while the turntable (2) is stopped, the drive gear (
18) rotates, the glass cylinder (8) rotates.

As described above, since the glass tube (8) can be fed intermittently while constantly rotating, no spots or uneven burns occur when the tip of the glass tube (8) is heated with the burner (94).

When the glass tube (8) stops at the first preforming station S, the preforming roller (
42) rises and presses the heated portion at the tip of the glass tube (8) to perform first preforming as shown in FIG. 13A.

When the glass tube (8) is stopped at the second preforming station S2, the second preforming is performed by the preforming roller (48) of the second preforming device (40).

When the glass tube (8) stops at the finish forming station S3, four support rollers (6) move the glass tube (8) from above and below.
) is held freely rotatable, the head (55) moves forward and enters the end of the glass tube (8), and the forming rollers (7) (7) press the glass tube (8) from above and below.

As a result, the bottle mouth (80) is finally formed as shown in FIG. 13C.

The glass cylinder (8) whose bottle mouth (80) has been formed is taken out at a take-out station S4.

In the above process, a bottle opening (80) is attached to one end of the glass cylinder (8).
Therefore, the bottle opening (80) can be formed at the other end of the glass cylinder (8) using the same device as described above.

In addition, the first preforming device (4) and the second preforming device (40
) and the finish forming device (5) are provided so that their heights can be adjusted, and the height of each device (
4) By adjusting the height of (40) and (5), it is possible to process the bottle opening (80) even for glass cylinders with different diameters.

The present invention is not limited to the configuration of the above embodiment, and various modifications are possible within the scope of the claims.

[Brief explanation of drawings]

Figure 1 is a plan view of the bottle mouth forming device, Figure 2 is Figure 1 ■-■
3 is an enlarged plan view of the support base, FIG. 4 is a slope view of the preforming roller of the first preforming device in a standby state, and FIG. 5 is a slope view of the same during molding. Fig. 6 is a rear side slope view of the finish forming device, Fig. 7 is a front side slope view of the finish forming device, Fig. 8 is a right side view of the same as above, Fig. 9 is a left side view of the same as above, Fig. 10 The figure is a perspective view of the head inserted into the bottle mouth, Figure 11 is a perspective view of the bottle, Figure 12 is a bottle manufacturing process diagram, and Figure 13 is a diagram of the first preforming, second preforming, and final forming. An explanatory diagram, FIG. 14, is an explanatory diagram of a conventional conveying device. (1)...Base (18)...Drive gear (2)...Turntable (3)...Work holder (4)...First preforming device (5)... Finishing forming device (7)... Forming roller diagram 2 Figure 18 Figure 12 Figure 14

Claims (3)

[Claims] (1) Turntable (2) arranged horizontally on the base (1) and intermittently rotates in conjunction with the intermittent rotation drive device (23)
, a workpiece pedestal (3) equipped with gears (34) supported radially at equal intervals on the turntable (2), and a motor (14).
) is arranged concentrically with the turntable (2) so as to be rotatable relative to the table, and has a tooth surface (19) that meshes with the gear (34) of the workpiece pedestal (3).
18) A rotary intermittent conveyance device formed by. (2) A turntable (2) arranged horizontally on the base (1) and intermittently rotated by being connected to an intermittent rotation drive device (23).
), a work pedestal (3) equipped with gears (34) supported radially at equal intervals on the turntable (2), and a motor (14).
), the workpiece pedestal (3) is disposed concentrically with the turntable (2) so as to be rotatable relative to the table, and is disposed on the outer periphery of the workpiece pedestal (3).
A driving gear (18) formed with a tooth surface (19) that meshes with a gear (34) of A preforming device (4) that preforms a bottle mouth (80) on a glass cylinder (8).
), a finish-forming device (5) disposed downstream of the pre-forming device (4) to finish-form the pre-formed bottle opening (80), and a finishing device (5) disposed downstream of the pre-forming device (4), and a finishing device (5) disposed downstream of the pre-forming device (4) and a pre-forming device ( 4) and a burner (94) arranged between the finish forming device (5) and heating the end of the glass cylinder (8). (3) In a bottle mouth forming device that forms a bottle mouth (80) by applying pressure with a forming roller (7) while rotating a glass cylinder (8) whose tip is heated, the transition path of the glass cylinder (8) is A pair of forming rollers (7) (7) are disposed so as to be able to approach and separate symmetrically from above and below, and a pair of forming rollers (7) are disposed so as to protrude in a horizontal plane facing the tip of the glass cylinder (8). ) and a head (55) for regulating the inner diameter of the bottle.