JPS63129023A - Glass product molding machine - Google Patents

Abstract

PURPOSE:To permit adjustment and movement of plural cams, which are engaged with plural cam followers attached to various devices in discrete molding units and actuate the respective devices mentioned above, to optimum positions according to the sizes, shapes, etc., of products by mounting the above- mentioned cams to a stationary cam drum in such a manner that the cams can be moved and adjusted in the circumferential direction of the cam drum. CONSTITUTION:This glass product molding machine has the molding machine body which has upper and lower turn tables 12, 5 rotating around a central vertical shaft 10 and the plural discrete molding units 13 which are mounted to the tables 12, 5. This machine is constituted in the following manner: the plural cams (22a, 22b, etc.) which are engaged with the plural cam followers attached to the respective devices in the units 13 and actuate said devices are mounted to the outside circumference of the stationary cam drum 4 disposed concentrically with the shaft 10 in such a manner that the cams can be circumferentially moved and adjusted and can be fixed in arbitrary positions.

Description

Detailed Description of the Invention [Object of the Invention] (Industrial Application Field) The present invention relates to press and blow-type glass product forming machines, and particularly relates to a rotary table that rotates around a central vertical axis, and The present invention relates to a glass product forming machine having a plurality of individual forming units mounted on a glass product forming machine.

(Problems to be solved by the prior art and the invention) In general, this type of glass product forming machine is
As described in Japanese Patent No. 71827, a plurality of molding units are mounted in the circumferential direction of a rotary table that rotates around a central vertical axis, and as the rotary table rotates, the molding units are sequentially attached to the molding units. A gob of molten glass is fed, an intermediate product is formed by a press device, and the intermediate product is positioned in a finishing mold and a bottom mold while holding the upper end of the intermediate product by a neck ring device. The product is molded by blowing compressed air with an air blow head, and in the final step, the finishing mold and bottom mold are opened, and the product is taken out of the machine with a take-out device.

By the way, in such a glass product forming machine, a large number of cams are fixed to a fixed cam drum arranged concentrically with the central vertical shaft, and a large number of cam followers provided in individual forming units are attached to each of the above cams. When engaged, each cam follower is actuated by relative movement between the cam and the individual molding unit, and each device in the individual molding unit is sequentially activated.

However, since the cam is generally fixed to the cam drum by bolts, there are problems such as the cam position cannot be finely adjusted and can only be moved at every pitch of the bolt holes. Moreover, in order to move the cam, it is necessary to remove several individual molding units disposed on the outer periphery of the molding machine body from the rotary table, which poses problems such as troublesome adjustment.

In view of these points, the present invention allows the cam to be moved steplessly, and allows fine adjustment of the operation of each device such as the press of the individual molding unit and the assembly cylinder, and this adjustment is also relatively easy. The object of the present invention is to obtain a glass product forming machine that can perform the following steps.

[Structure of the invention]

The present invention provides a glass product molding machine having a molding machine main body having an upper and lower rotary table that rotates around a central vertical axis, and a plurality of individual molding units attached to the upper and lower rotary table, each device in the individual molding unit. A plurality of cams that engage with a plurality of cam followers attached to the cam to operate each of the above devices are mounted on the outer periphery of a fixed cam drum disposed concentrically with the central vertical shaft so as to be movable and adjustable in the circumferential direction. Additionally, it is characterized in that it can be fixed at any position.

(Function) As mentioned above, since the cam is attached to the fixed cam drum so that it can be moved and adjusted in the circumferential direction, each device in the individual molding unit can be adjusted by moving and adjusting the cam as necessary. It is possible to make fine adjustments to the operating timing, etc., and it is possible to make the optimum adjustment according to the size, type, etc. of the product.

(Example) FIG. 1 is a longitudinal cross-sectional view of a glass product forming machine according to the present invention. A cam drum 4 is arranged and fixed to the upper part via a cylindrical intermediate stand 3 concentrically with the lower stand 2.

At the outer periphery of the lower stand 2, there is a
A lower rotary table 5 is arranged concentrically with. The lower rotary table 5 is supported via a bearing 7 on a lower frame 6 fixed on the base 1, and a gear part 8 provided on the outside of the lower part of the lower rotary table 5 is not shown. The lower rotary table 5 is meshed with the drive gear, and is rotated through the gear part 8 by the rotation of the drive gear.
is designed to rotate around the lower stand 2.

Further, above the cam drum 4, the cam drum 4 is
An upper rotary table 12 is rotatably mounted on a central vertical shaft 10 protruding from the center via a bearing 11.

On the other hand, the lower rotary table 5 and the upper rotary table 12
A predetermined number of individual molding units 13 are arranged at predetermined intervals in the circumferential direction of the rotary table, and the lower and upper parts of the individual molding units 13 are connected to the lower rotary table 5 and the upper rotary table 12, respectively. It is fixedly fixed so that each individual molding unit 13 can rotate together with the upper and lower rotary tables 5.12 about the axis of the central shaft 10.

Further, a gob delivery device 14 is disposed at a predetermined position outside the molding machine body including the individual molding units 13, etc., and delivers gobs to the assembly of the individual molding units 13 at regular intervals in synchronization with the rotational speed of the molding machine. Feeding into the mold.

While the individual molding unit receiving the gob rotates in the predetermined h'' direction together with the -L section and the lower rotary tables 12 and 5, it is pressed by the press device to form an intermediate product, and further by the neck ring device. While holding the neck ring, compressed air is blown into the finishing mold, bottom mold, and air blow head.In the final process, the finishing mold and bottom mold are opened and placed on the outside of the molding machine body. A take-out device takes the product out of the machine.

By the way, the lower rotary table 5 and the upper rotary table 12 of the molding machine main body are such that the protrusion 12a (FIG. 2) formed on the lower surface of the upper rotary table 12 and the upper inner circumference of the lower rotary table 5 are connected to each other. During processing, they fit together and are fixed concentrically, and in this state, the rotating tables 5,
Twelve outer circumferential surfaces are simultaneously processed into polygonal surfaces 5b and 12b (octagonal in this embodiment), and positioning keys 15 and 16 of the individual molding units are simultaneously processed on each polygonal surface. In addition, the index of the 22l octagon is processed by a high-precision NC machine, and when assembling the rotary table 5.12, the axes of the rotary table are perfectly aligned and a high degree of horizontality is maintained. Furthermore, the polygonal surfaces of both the upper and lower rotary tables are made to be completely parallel.

2 and 3 are an enlarged side view and a front view of the individual molding unit 13, in which the lower part of the main frame 20 of the individual molding unit has a positioning key 15 on a predetermined polygonal surface 5b of the lower rotary table 5. It is fixed through. On the other hand, an upper rotary table 1 is provided on the upper part of the main frame 20.
A valve block 21 is attached to the opposite surface of the valve block 2,
The upper part of the valve block 21 is fixed in a predetermined position to a predetermined polygonal surface 12b of the upper rotary table 5 via a positioning key 16.

The valve block 21 is provided with operating valves (not shown) that are operated by coming into contact with a plurality of cams 22 mounted on the outer periphery of the fixed cam drum 4. This is to switch the working fluid of the cylinder. Further, when the valve block 21 is mounted on the upper rotary table 12, the valve block 21 is provided with a valve that corresponds to each working fluid supply port 23 provided on the valve block mounting surface of the upper rotary table 12. A plurality of working fluid introduction connection ports 24 are provided, and fluid leakage is prevented by an O-ring or the like at the connection portion, and each of the working fluid introduction connection ports 2
4 is connected to the operating valve.

On the other hand, a piston rod 25 is fixed to the upper half of the main frame 20 and extends vertically on the side opposite to the valve block 21. A press cylinder 26 that can only move downward is attached, and a press head 27 that extends downward is attached to the outside of the press cylinder 26.

Further, another piston rod 28 parallel to the piston rod 25 is fixed to the lower half of the main frame 20, and the piston rod 28 is movable up and down along the piston rod 28. A rotatable assembly cylinder 29 is mounted, and a assembly mold 31 is removably attached to an arm 30 projecting laterally from the assembly cylinder 29.

On the other hand, the main frame 2 is attached to the side surface of the assembled cylinder 29.
A cam groove 33 that engages with a cam roller 32 that has come into contact with it from zero.
is provided, so that in response to the downward movement of the two assembled cylinders, the assembled cylinder 29 can rotate approximately 90' around its axis due to the engagement of the cam roller 32 and the cam groove 33. be. Then, the assembled cylinder 29
The axis of the mold assembly 31 is made to coincide with the axis of the press head 27 when it reaches its highest position.

Further, a bracket 36 for attaching finishing molds, etc. is fixed to the intermediate part side of the main frame 20, and at the top of the tip of the bracket 36, one of the left and right finishing mold holders 37 and 37, each having a semicircular cross section, is fixed. The sides are pivotally connected, and the left and right finishing mold holders 37°37 meet to form a finishing mold, in which case the center line of the finishing mold 2 is aligned with the axis of the rad 27 to the press. (Figures 4 and 5).

One end of a finishing die holder opening/closing link 38.38 is pivotally attached to the vicinity of the pivoting part of the reappointment upper die holder 37.37, and the other end of the finishing die holder opening/closing link 38.38 is The lever 40 is pivotally connected to the tip of a lever 40 whose base end is fixed to a shaft 39 attached to a bracket 36 . The above shaft 39
The base end of a lever 41 is also fixed to the lower end of the
The tip of the lever 41 is connected to the tip of a piston rod 43 of an operating cylinder 42 whose base end is connected to the main frame 20. On the other hand, the segment gear 4 is attached to the shaft 39.
4 is fixed, and its segment gear 44 is
It is meshed with a bevel gear 46 fixed to a shaft 45,
- The base of a bottom mold holder 47 that seals the bottom of the mold 1 is attached to the tip of the horizontal shaft 45 (
(See Figure 3).

The main frame 20 also includes a neck ring device support frame 51 that supports the lower end of the piston rod 25 of the press cylinder 26 and the upper end of the piston rod 28 of the assembled cylinder 29, and also supports the neck ring device 225o. It is attached (Figure 6).

The neck ring device support frame 51 is formed with an opening 52 that is concentric with the press head 27.
A cylindrical plunger guide 53 is disposed within the opening 52 (FIG. 8).

The plunger guide 53 is attached to a neck ring gear 54 at a portion not shown, and is configured to guide a press plunger that descends from above during pressing. Furthermore, a concave portion 53a for grasping a moil portion of a glass product is provided in a concentric manner at the lower part of the plunger guide 53. 1- At the lower part of the plunger guide 53, a claw 55 divided into four on the circumference is arranged for gripping the moil part together with the recess 53a from the gob pressing process to the blow forming with the finishing die. This winter melon 55 is attached to the bottle 56 in the neck ring gear 54.
They are attached to a neck ring holder 57 which is pivotally mounted by a spring 58, and are urged toward the center by a spring 58 provided on the outer periphery of the neck ring holder 57. Further, a neck ring presser 59 is disposed above the neck ring holder 57, and when the neck ring presser 59 is lowered, the inclined surface 59a of the neck ring presser 59 engages with the upper part of the neck ring holder 57, thereby releasing the spring 58. The lower part of the neck ring holder 57 moves outward against the
Open the claws 55 to release the moil portion of the glass product from the gripped state.

By the way, the neck ring gear 54 is connected to the neck ring device support frame 51 via a ball bearing 60.
is rotatably attached to the neck ring gear 5.
4 is meshed with the drive pinion 61 (Fig. m6).

The pinion 61 is operatively connected to a chain wheel 64 via a shaft 62 and a clutch 63, and the chain wheel 64 is rotated by a bevel gear 65. The bevel gear 65 is meshed with a large bevel gear 66 which is provided on the outer periphery of the intermediate stand 3 of the molding machine body, concentrically with the intermediate stand 3, and rotatable via a bearing. On the other hand, the intermediate stand 3 of the molding machine main body
An electric motor 80 whose rotation speed can be adjusted is provided inside.
A speed reducer 81 is connected to the electric motor 80, and a pinion 82 provided on the output shaft of the speed reducer 81 is meshed with an external gear 83 formed integrally with the large bevel gear 66 (first (Figure) When the electric motor 80 is driven at a predetermined rotation speed, the large bevel gear 66 rotates about the central vertical axis via the reducer 81, pinion 82, and external gear 83, and the upper and lower rotary table rotates. Coupled with the movement of the individual molding unit 13 that rotates with the rotation,
The bevel gear 65 is rotated, and the neck ring gear 54 is rotated via the clutch 63, pinion 61, etc.

On the other hand, a bracket 67 is fixed to the back surface of the main frame 20, and a cam follower 68 is attached to one end of the bracket 67 and comes into contact with a cam attached to the cam drum 4.
The central part of a lever 69 having a
The other end of the clutch is connected to the clutch switching lever 71 via the link 70.
is connected to.

Further, the neck ring presser 59 is connected to a neck ring presser holding lever 73 that is swingable about a pin 72, and the neck ring presser holding lever 73 is
It is connected to a lever 75 having a cam follower 74 at one end that abuts a cam mounted on the cam drum 4.

On the other hand, a blow head 76 for blowing compressed air into the intermediate product is attached to the main frame 20 so as to be swingable about a vertical axis. , the base end of the I-shaped blow head 76 is connected to a swing lever 78 via a link 77.
A cam follower 79 is provided at the other end of the swing lever 78, and the cam follower 79 is in contact with a cam attached to the cam drum 4 (not shown).

By the way, as mentioned above, the blow head 76 is swung around the vertical axis via the swiveling lever 78 and the like, and is moved from the upper outer position of the finishing mold to a position that coincides with the center position of the finishing mold, where it is moved. It is moved downward by a device not shown to seal the opening of the mold.

By the way, FIG. 10 is a plan view showing a part of the fixed cam drum 4, and the outer periphery of the cam drum 4 has a plurality of circumferentially extending grooves for mounting cams, as shown in FIGS. 11 to 13. 90, and the plurality of 90 predetermined grooves are provided with cam surfaces a1.90 having a predetermined shape. A cam 22a having a planar arc shape with a2.

The inner circumferential portions of 22b are fitted and fitted. Each of the cams 22a and 22b has a pin 91 projecting from its inner surface, and the pin 91 is inserted into a circumferentially extending elongated hole 92 bored in the groove 90 of the cam drum 4. , a spring 93 is attached to the protrusion of each pin 91.
is attached, and each cam 22a is attached by the spring 93.
.

22b is held in pressure contact with the inner surface of the valley groove 90.

Further, a long hole 94 extending in the circumferential direction is bored in the upper cam 22a, and a pin 94 bored in the lower cam 22b.
5 is inserted into the elongated hole 94, a nut is attached to the tip of the pin 95, and by loosening the nut, the relative position of both cams 22a, 22b can be adjusted.
Alternatively, the two may be connected to each other by tightening the nut. On the other hand, a rack 96 extending in the circumferential direction is attached to the lower surface of the lower cam 22b, and a binion 98 attached to the tip of a drive shaft 97 attached to the cam drum 4 is meshed with the rack 96. ing. A worm wheel 99 is attached to the other end of the drive shaft 97, and a worm 103 driven by a motor 100, a reduction gear 101, a bevel gear 102, etc. is meshed with the worm wheel 99. Note that the reference numeral 104 is an encoder.

Therefore, when adjusting each of the cams 22a and 22b,
A motor 100 installed in a fixed cam drum 4 is operated by remote control, and a reduction gear 101 and a bevel gear 10 are operated.
2. The pinion 98 is rotated via the worm wheel 99 or the like, thereby moving the cams 22a, 22b in the circumferential direction, and fixed at the stop position by the magnetic brake, and the rotation angle can be determined by the encoder 104.

When one individual molding unit 13 is rotated together with the upper and lower re-rotating tables 5.12 to a position corresponding to the gob delivery device 14, the individual molding unit 1
A predetermined amount of gobs are supplied to the mold 31 of No. 3. When the gob is fed and the individual molding unit 13 comes to a position where it has been rotated by a predetermined amount, the operating valve of the valve block 21 is actuated by a predetermined cam 22a or 22b of the cam drum 4, and the assembly cylinder 29 is forced to move upwards.

Therefore, the assembly cylinder 29 is rotated approximately 90'' around the axis due to the engagement between the cam groove 33 provided on the side surface of the assembly cylinder 29 and the cam roller 32 protruding from the main frame 20, and the assembly cylinder 29 is rotated approximately 90'' around the axis. It is aligned with the axis of the spatula 27 and located directly below the plunger guide 53 of the neck ring device.

Therefore, the other operating valves of the valve block 21 are connected to the other cams 2.
2, the press cylinder 26 is driven, the press head 27 is lowered, and the gob in the set mold 31 is formed under pressure.

When the pressure forming is completed in this way, the intermediate product neck ring formed by the pressure forming is held between the recess 53a of the plunger guide 53 and the claw 55,
The intermediate product is held (FIG. 8).

Therefore, when the individual molding unit 13 further rotates, the press cylinder 26 is moved upward and moved downward into the mold 31 via the mold cylinder 29 in preparation for supplying the next gob. 42 is actuated, and the left and right upper mold holders 37.37 are operated via links 38, etc.
is moved from the position shown by the two-dot chain line to the position shown by the solid line in FIG. 4, and a finished mold is formed by both of them and surrounds the intermediate product. At the same time, the bottom mold holder 47 is rotated around the horizontal shaft 45 via the segment gear 44 and the like, thereby sealing the bottom of the finishing mold.

When the intermediate product is held in the finishing die in this way, the clutch switching lever 71 is actuated via the lever 69 etc., the clutch 63 is actuated, and the large bevel gear 6
6. The neck ring gear 54 is rotated via the bevel gear 65, the pinion 61, etc., and the intermediate product is rotated.

On the other hand, the blow head 76 is moved above the neck ring device and downward through the cam follower 79 (oscillating) <-78, etc., and is brought into pressure contact with the upper surface of the plunger guide 53, and then the blow head Compressed air is blown into the intermediate product through 76, and the finished product is processed by the finishing die.

When finishing of the product is completed in this manner, the blow head 76 is operated in the opposite manner to the above to return to the cutting position.

In this way, when the individual molding unit 13 is rotated to a predetermined position, the finishing mold and the bottom mold are opened, contrary to the above, and the neck ring presser 5 is
9 is lowered. Then, the inclined surface 59a of the neck ring presser 59 and the upper part of the neck ring holder 57 are engaged, and the lower part of the neck ring holder 57 moves outward against the spring 58, and the claw 55 is opened. The grip on the glass product is released, and the product is taken out of the machine by a take-out device disposed on the outside of the molding machine main body.

When the product removal is completed in this manner, the individual molding unit 13 is moved to the gob supply position again. Similarly, in each individual forming unit, the upper and lower operations are carried out in sequence to form a glass product.

〔Effect of the invention〕

As explained above, the present invention provides a plurality of cams that engage with a plurality of cam followers attached to each device in an individual molding unit and actuate each of the devices mentioned above. The cam is attached to the outer periphery of the cam drum so that it can be moved and adjusted in the circumferential direction, and can be fixed at any position, so the cam can be moved and adjusted to the optimal position depending on the size and shape of the product. It is possible to fine-tune the operating timing and time of each device, or the related operation with other devices, thereby improving the quality of the product. In addition, the motor can be driven by remote control to adjust the movement of the cam. In this case, there is no need to remove the individual molding unit each time to adjust the position of the cam. It is extremely easy to do.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view showing the schematic configuration of the glass product forming machine of the present invention, FIG. 2 is a side view of the individual molding unit, and FIG.
The figure is a front view of the same as above, Figure 4 is a side view of the finished mold section, and Figure 5 is a front view of the same as above.
The figure is a longitudinal sectional side view of the same as above, FIG. 6 is a plan view of the neck ring device section, FIG. 7 is a side view of the same as above, FIG. 8 is a partial vertical sectional view of the neck ring section, and FIG. Plan, 1st
Figure 0 is a plan view showing a part of the cam drum section, Figures 11, 12, and 13 are XI-X of Figure 10, respectively.
FIG. 14 is a sectional view taken along the I line, the xn-xm line, and the xm-xm line, and is a diagram showing the drive mechanism. DESCRIPTION OF SYMBOLS 1...Base, 2...Lower stand, 4...Cam drum, 5...Lower rotary table, 10...Central vertical shaft, 12...Upper rotary table, 13...Individual molding unit , 14... gob delivery device, 20...
Main frame, 21...Valve block, 22, 22a
. 22b...Cam, 26...Press cylinder, 27.
...Press head, 29...Assembled cylinder, 31...
・Assembling mold, 33...Cam groove, 37...Finishing mold holder
, 42... Operating cylinder, 47... Bottom type holder,
50... Neck ring device, 53... Plunger guide, 54... Neck ring device, 76... Blow head, 90... Groove, 96... Rack, 98...
Binion, 100...motor. Applicant's agent Mr. Sato Figure 5 Figure 11 Figure 12

Claims (1)

[Scope of Claims] 1. A glass product molding machine having a molding machine body having a vertical rotary table that rotates around a central vertical axis, and a plurality of individual molding units attached to the vertical rotary table, wherein the individual molding units are A plurality of cams that engage with a plurality of cam followers attached to each of the devices and operate each of the above devices are moved and adjusted in the circumferential direction around the outer periphery of a fixed cam drum that is arranged concentrically with the central vertical shaft. A glass product forming machine characterized by being able to be mounted and fixed in any position. 2. A patent claim characterized in that the plurality of cams are respectively disposed in circumferential grooves formed on the outer peripheral surface of the cam drum, and a rack that engages with the drive pinion is provided on the lower surface of the cam. A glass product forming machine according to item 1.