JPH05254866A - Device for feeding raw material of glass tube - Google Patents

Abstract

PURPOSE:To automatically feed a glass tube raw material to a glass tube cutter and further prevent the glass tube raw material from being vibrated or fallen. CONSTITUTION:A glass tube raw material 8 stocked in a raw material-delivering section 41 is fed into a raw material-feeding section 21 tilted with a tilt-changing member 61, whereby the raw material 8 is stably and automatically fed from the raw material-feeding section 21 to a cutter 20 in the same tilted state as that of the cutter 20. The raw material-feeding section 21 is held with plural disks 23 attached to the main shaft 24, and the raw material is pressed out to the cutter 20 with a press member 32. Thereby, the vibration and falling of the raw material 8 are prevented, and the defective shape of the cut cross section and the cutting miss of the raw material 8 are reduced at the cutter 20. Since the tilt-changing section 61 is constituted of plural tilt-changing disks 63 attached to the shaft 62 and having different diameters each other, the tilt of the raw material-feeding section 21 from the horizontal direction is changed with the simple constitution.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass tube material supplying device for automatically inserting a glass tube material into a glass tube cutting machine for continuously cutting a glass tube into a predetermined length.

[0002]

2. Description of the Related Art Conventionally, various glass tube cutting machines have been used to cut roughly cut glass tubes into a predetermined length. Pipe diameter is about 5-10 mm and material length is 1000-1
Cutting glass tube material of about 500 mm with a cutting length of 10-100
When cutting into a glass tube of about mm, for example, a glass tube cutting machine as shown in FIGS. 5 and 6 is adopted. The glass tube cutting machine shown in FIGS. 5 and 6 will be described below. FIG. 5 is a front view of the glass tube cutting machine, and FIG. 6 is a side view thereof.

In the above figure, 1 is a flange rotatably mounted on a fixed shaft 2, and this flange 1 is a disc
3 and gear 4 are fixed. The driving force of the variable speed electric motor 5 is transmitted to the large gear 4 via the belt 6 and the small gear 7, and the transmitted driving force causes the disc 3 and the large gear 4 to move around the fixed shaft 2 in the arrow X direction. Rotate to. In addition, a plurality of through holes (not shown) are formed in the regions along the outer circumferences of the disk 3 and the gear wheel 4 at the respective facing positions, and the glass tube material (hereinafter , (Hereinafter, referred to as a material) 8 are inserted through which a plurality of outer sleeves 9, 9, ... (Hereinafter, collectively referred to as outer sleeve 9) are rotatably held along the outer circumference. A pulley 10 for a toothed belt is fixed to each outer sleeve 9 so as to be flush with each other.
The driving force of the small variable speed electric motor 11 is transmitted to the pulley 10 via the toothed belt 12, and the outer sleeve 9 is rotated by the transmitted driving force. That is, the outer sleeve 9 performs an orbital motion associated with the rotation of the large gear 4 and a rotational motion associated with the rotation of the outer sleeve 9 itself. An inner sleeve 13 having an inner diameter corresponding to the tube diameter of the material 8 to be inserted is detachably attached to the outer sleeve 9, and the material 8 is inserted into this inner sleeve 13. Therefore, the material 8 is the outer sleeve 9
Along with the orbital movement and rotation movement.

The material 8 inserted in the inner sleeve 13 is guided by the transverse feed roller 14 in order to set the cutting length.
It is sent out for a predetermined length until it contacts 15. The material 8 that comes into contact with the guide 15 and has the cut length is set
When the outer sleeve 9 revolves while rotating, the heating burner installed in the middle of the conveyance path.
16 Moves on the surface and heats a predetermined cutting site in the circumferential direction. The material 8 whose cutting portion has been heated is brought into contact with a cutting blade 17 installed downstream of the heating burner 16 and cut into a predetermined length set, and then sent to the next step. In this way, the material 8 is sequentially cut into a predetermined length.

The glass tube cutting machine described above has a simple structure in which the material 8 is simply inserted into the inner sleeve 13. Therefore, in order to prevent the material 8 from meandering, the material 8 and the disk 3 are large. An outer sleeve 9 supported between the gears 4 is held inclined with respect to the floor F, and a glass tube cutting machine is also inclined with respect to the floor F.

[0006]

However, in the above-mentioned glass tube cutting machine, when the material 8 is supplied to the glass tube cutting machine, the material 8 is manually operated. This requires the work of inserting them one by one, which is a burden on the worker and hinders labor saving.

Further, since the material 8 is only inserted into the inner sleeve 13, the inner sleeve 13 is shorter than the length of the material 13, so that the material 8 vibrates or rotates due to the rotation of the material 8. Alternatively, as the length of the material 8 becomes shorter when the material 8 is sequentially cut, the material 8 falls (material
(The gap between the inner sleeve 13 and the inner sleeve 13) changes, so that the distance between the material 8 and the heating burner 16 changes
There is a problem in that the cut portion is not heated uniformly, a good cut surface cannot be obtained, and further a cutting error occurs.

As a measure against the vibration of the material 8, an annular band is put on the free end side (the side opposite to the cut surface) of the material 8,
Although the work of removing the band is performed when the length of the material 8 is shortened, such work is essentially unnecessary work for cutting the material 8 and requires unnecessary work. There was a problem.

The present invention has been made in view of the above circumstances, and provides a glass tube material supplying device which automatically supplies a glass tube material to a glass tube cutting machine and prevents vibration and collapse of the glass tube material. The purpose is to

[0010]

In order to achieve the above-mentioned object, the present invention supplies a glass tube material to a glass tube cutting device having a material holding portion which holds the glass tube material inclined with respect to a floor surface. In the glass tube material feeding device, a material feeding means for holding the glass tube material inclined to the floor surface at the same angle as that of the material holding section and feeding the glass tube material to the material holding section, and in parallel with the floor The material feeding means is arranged at the same angle as the above-mentioned material feeding means, stocks the glass tube material, and feeds out the glass tube materials one by one; And an inclination converting means for converting the inclination with respect to the supply means into an inclination with respect to the floor surface of the material supply means to supply the glass tube material to the material supply means.

Further, according to the present invention, the material supply means is formed on the periphery of the first drive shaft which gives the glass tube material a revolving motion, and is attached to the first drive shaft at a predetermined interval. It is characterized by comprising a first disk group for holding a glass tube material in a U-shaped groove, and an extruding section for extruding the glass tube material held by the first disk group into the material holding section. And

Further, in the present invention, the inclination converting means is formed on the periphery of the second drive shaft that gives the glass tube material an orbital motion, and is attached to the second drive shaft at a predetermined interval. It is characterized in that it is composed of a second disk group having different diameters for holding the glass tube material in the U-shaped groove.

[0013]

Since the present invention is configured as described above, the glass tube material stocked in the material feeding means and supplied to the material supplying means via the inclination converting means is supplied from the material supplying means to the glass tube cutting device. Thus, the glass tube material is stably and automatically inserted into the glass tube cutting device.

Further, according to the present invention, the material supply means is held by the first disk group attached to the first drive shaft, and is pushed out to the glass tube cutting device by the pushing portion.
Vibration and collapse of the glass tube material are prevented, and the defective shape and cutting error of the cut surface in the glass tube cutting device are reduced.

Further, according to the present invention, since the inclination converting means is composed of the second disk group having different diameters attached to the second drive shaft, the horizontal arrangement angle is vertical with a simple structure. Converted to slope.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a glass tube material supplying apparatus according to an embodiment of the present invention applied to a glass tube cutting apparatus. FIG. 2 is a plan view of FIG. 1 and FIG. FIG. 4 is a side view and FIG. 4 is a side view of FIG. 2 viewed from the direction A. In addition,
The glass tube cutting device is denoted by the same reference numeral as in FIGS. 5 and 6, and detailed description thereof is omitted.

In the above figures, 20 is a glass tube cutting machine described with reference to FIGS. 5 and 6 (hereinafter referred to as a cutting machine).
A material supply unit 21 that holds and supplies the material 8 is integrally connected to the cutting machine 20.

That is, in the cutting machine 20, a plurality of U-shaped grooves 22 for holding the material 8 corresponding to the positions of the outer sleeve 9 and the inner sleeve 13 for holding the material 8 are formed in the periphery. Discs 23, 23, ... (hereinafter collectively referred to as disc 23)
Is rotatably mounted at a predetermined interval on a cutting machine 20, that is, a main shaft 24 which is inclined and fixed to the floor surface F at the same angle as the inclination angle of the outer sleeve 9 to the floor surface F. It is held by four holding rods 26 which are fixed and supported between 20 large gears 4 and a drive disk 25 rotatably mounted on a main shaft 24. A sprocket 27 is attached to the drive disc 25, and the sprocket 27 and the small gear 7 that drives the large gear 4 are rotated by the drive force transmitted from the main electric motor 28 to rotate with the drive disc 25. gear
4 rotates, and further the disk 23 and the holding rod 26 rotate in the arrow X direction which is the same direction as the large gear 4. Therefore, the material 8 revolves around the main shaft 24.

A guide plate 29, which prevents the material 8 from falling when it is positioned below and suppresses the vibration of the material 8 to a minimum, is arranged along the outer circumference of the disk 23.
Is provided with a material supply port 30 for receiving the material 8 supplied from the inclination conversion section 61 described later, and a sensor 31 for counting the supplied material 8 and controlling the supply of the material 8 is provided. ing. Disc 23 and guide plate 29
Is made of a material having a low friction so that the material 8 does not interfere with the rotational movement performed for cutting.

Below the material supply section 21, a material supply section is provided.
The material 8 supplied to 21 and held on the disc 23 is cut by the cutting machine 20.
An extruding part 32 for extruding the film is disposed. This push-out portion 32 is formed by the inner sleeve 13 that holds the material 8 by the cutting machine 20.
Material pushing plate 33 which is inserted into the cutting machine 20 and is pushed to a position where the lateral feeding roller 14 of the cutting machine 20 can feed it laterally, and the first air cylinder 34 which supports the material pushing plate 33 and adjusts the vertical position thereof.
A second air cylinder 35 for moving the first air cylinder 34 in the front-back direction, and the lateral feed roller 14
Is composed of a second air cylinder 35 for pushing the material 8 to a position where it can be laterally fed.

Further, the main motor 28 is of a variable speed and is matched with an index suitable for cutting various kinds of materials 8 so that intermittent operation can be performed at the time of supplying the materials 8 at a predetermined angle (between the sleeves 7 and 13). A servo motor, which can be stopped at an angle with respect to the center), is suitable.

On the other hand, as shown in FIG. 2, one material 8 is tilted with respect to the material supply portion 21 at the same angle as the inclination angle of the material supply portion 21 with respect to the floor surface F and parallel to the floor surface F. A material sending unit 41 for sending out each one is installed. This material sending part
The reference numeral 41 supplies the material 8 supplied from the previous process to the hopper section 42 that feeds the material 8 one by one and the material 8 sent from this hopper section 42 to the inclination conversion section 61 of the next step described later. It is composed of a vertical conveyor section 43.

The flat plate 44 of the hopper section 42 has one end rotatably attached to the shaft 45 and the other end thereof.
A plurality of flat plates fixed to 46, and a side plate 47 on one side and the front side (feeding side of the material 8) of the flat plate 44.
However, pillars 48 are arranged in the rear, and a flat plate
The other side of 44 is open. The material 8 supplied from the previous process is loaded from the other side of the open flat plate 44 and stocked in the hopper section 42.

The material 8 stocked in the hopper section 42 is
U-shape formed on the periphery of a plurality of delivery discs 51 attached to a shaft 45 to which a driving force is transmitted from a sprocket 50 of a vertical conveyor section 43 driven by a variable speed electric motor 49 via a chain or the like. Is held in the groove of the delivery disk 51 in synchronization with the rotation of the sprocket 50 and the delivery disk 51 by rotating the sprocket 50 and the delivery disk 51 in synchronization. The material 8 is vertical conveyor 43 one by one
Transfer to.

Further, one end of a connecting rod 52 is rotatably attached to the shaft 46 at the other end of the flat plate 44, and the other end of the connecting rod 52 is rotatably attached to the shaft 46 at the other end of the flat plate 44. Is rotatably mounted at a position deviated from the center of a rotating disk 53 driven by a variable speed electric motor 49 via a chain or the like. Therefore, when the rotating disk 53 is driven and rotated by the variable speed electric motor 49, the flat plate 44 rotates (reciprocates) about the shaft 45. By rotating the flat plate 44,
Even if the materials 8 supplied to the hopper section 42 are piled up and a bridge (arch) is formed near the delivery disk 51, the equilibrium state of the forces forming the bridge of the material 8 is broken, Alternatively, the material 8 is prevented from forming a bridge, and the material 8 is reliably supplied to the groove of the delivery disk 51. Although the rotating disk 53 is driven by the variable speed electric motor 49 via a chain or the like, a clutch may be used in the middle of the transmission of the driving force and intermittent operation may be performed by a timer or the like.

In the vertical conveyor section 43, a metal chain 55 to which an L-shaped material conveying holder 54 having a glass tube material fall prevention claw is attached is driven by a variable speed electric motor 49 to circulate, The material 8 transferred from the section 42 to the vertical conveyor section 43 is conveyed to the height of supply to the cutting machine 20. The material 8 which has reached the supply height to the cutting machine 20 is discharged from the chain 55 with metal fittings onto the chute 56, and two sensors 5 are provided in order to stably supply the material 8 to the subsequent process.
A certain amount of material 8 is accumulated on the chute 56 based on the detection result of 7,58. That is, when the sensor 57 on the delivery end side of the chute 56 does not detect the material 8, the control section (not shown) instructs the material sending section 41 to send the material 8 based on this detection signal. The variable speed motor 49 rotates, drives the disc for delivery 51 and the vertical conveyor section 43,
When the material 8 is supplied to the chute 56, and the accumulation of the material 8 is detected by the sensor 58 on the carry-in end side of the chute 56, the control unit instructs to stop the supply of the material 8 based on this detection signal. The rotation of the variable speed motor 49 is stopped, and the supply of the material 8 is stopped.

The material 8 accumulated in the chute 56 is supplied to the material supplying section 21 through the inclination converting section 61. The inclination converting section 61 supplies the material between the material supplying section 21 and the material delivering section 41. It is installed so as to be inclined with respect to the floor surface F at the same angle as the inclination angle of the portion 21 with respect to the floor surface F. The material 8 supplied to the inclination converting portion 61 is conveyed horizontally with respect to the floor surface F, and the cutting machine 20 is installed so as to be inclined with respect to the floor surface F.
The inclination converting portion 61 has a plurality of U-shaped grooves formed on its periphery and is fixed to the shaft 62. The inclination converting disks 63, 63, ...
The material 8 on the chute 56 is received in the groove (hereinafter, referred to as the inclination converting disk 63) and the material supply port 30 of the material supply unit 21 is received.
Supply to.

That is, the shaft 62 to which the tilt converting disk 63 is fixed is held at the same angle as the tilt angle of the main shaft 24 with respect to the floor surface F (the shaft 62 and the main shaft 24 are on the same plane), and Even on the same plane, the shaft 62 is not parallel to the main shaft 24 and is at the same angle as the inclination angle of the main shaft 24 with respect to the floor surface F.
It is held tilted with respect to 24. In other words, the inclination conversion unit 61 converts the inclination in the horizontal direction into the inclination in the vertical direction by the inclination conversion disc 63, so that the material 8 conveyed horizontally to the floor surface F is opposed to the floor surface F. The material is supplied to the inclined material supply unit 21. Also, the shaft 62
Is driven by the variable speed electric motor 64.
The rotation is controlled by the controller based on the detection result of the sensor 31 arranged on the guide plate 29.

Next, the operation of the embodiment of the present invention having the above structure will be described.

Material input from the previous process to the material output unit 41
8 is first stocked in the hopper section 42. The material 8 is held and rotated in a groove formed on the periphery of the delivery disk 51 as the delivery disk 51 rotates, and the metal chain 55 of the vertical conveyor section 43 facing the delivery disk 51 from the groove is attached. One by one, transfer to the material transfer holder 54 attached to the. The material 8 transferred to the material conveying holder 54 is conveyed to the cutting machine 20 by the metal chain 55, and when the material reaches the supplying height, the material 8 is discharged from the material conveying holder 54 onto the chute 56.

At this time, if the cutting machine 20 is in the material cutting operation, the rotation of the variable speed electric motor 64 is stopped and the material 8 is not supplied to the material supply section 21. Accumulation takes place. The material 8 is discharged onto the chute 56 until the accumulation of the material 8 is detected by the sensor 58, and when the accumulation of the material 8 is detected, the rotation of the variable speed electric motor 49 is stopped, and the inclination conversion portion 61 is Material 8 supply is stopped.

On the other hand, when the cutting machine 20 is stopped and the material supplying operation for supplying the material 8 to the material supplying section 21 is being performed, the variable speed electric motor 64 is rotated to supply the material 8 to the material supplying section 21, The material 8 discharged onto the chute 56 rolls on the chute 56 and is sequentially supplied to the inclination converting disc 63 of the inclination converting portion 61.

The material 8 supplied to the inclination converting disc 63 is
The tilt converting disk 63 is held in a groove formed in the peripheral edge of the tilt converting disk 63 composed of a plurality of disks having different diameters.
By revolving with the rotation of, the inclination in the horizontal direction is converted into the inclination in the vertical direction. The material 8 whose inclination has been converted is put into a material supply port 30 formed in the guide plate 29 of the material supply unit 21, and is sequentially supplied from the material supply port 30 to the disc 23.

At this time, the material 8 supplied to the disk 23 is counted by the sensor 31 arranged on the inlet side of the material supply port 30 and corresponds to the number of the grooves 22 formed in the peripheral edge of the disk 23. When the number of materials 8 to be counted is counted, it means that the material 8 is supplied to all the grooves 22 of the disk 23, and the variable speed motor
The rotation of 64 is stopped to stop the supply of the material 8 from the inclination converting section 61 to the material supplying section 21.

On the other hand, the material 8 supplied to the disk 23 is held in the groove 22 formed in the peripheral edge of the disk 23 and revolves around the main shaft 24 as the disk 23 rotates. The pushing portion 32 located below is reached. The material 8 that has reached the extruding section 32 is sequentially inserted into the inner sleeve 13 by the material pushing plate 33 of the extruding section 32 one by one, and the lateral feed roller
14 is pushed out to the position where it can be fed laterally.

The above-mentioned supply of the material 8 to the disk 23 and the extrusion by the material pressing plate 33 are performed in parallel, but the material 8 is supplied to all the grooves 22 of the disk 23 and then supplied to the disk 23. When the last pressed material 8 is extruded by the material push plate 33 and all the material 8 is extruded to the position where the lateral feed roller 14 can feed the material laterally, the operation is switched from the material supply operation to the material cutting operation.

In the material cutting operation, first, the lateral feed roller 14 starts rotating, and the material 8 held by the disk 23 revolves and laterally feeds the material 8 in contact with the lateral feed roller 14. After the material 8 has been laterally fed, the disc 3 and the gear 4 of the cutting machine 20, as well as the cutting operation described with reference to FIGS. 5 and 6,
And the disk 23 of the material supply unit 21 rotates, and the material 8 is sequentially cut.

By the way, the cutting operation is controlled by the cutting machine 20 and the material supply section 21 interlocked with each other. To control the cutting operation, a projection (not shown) is formed at an appropriate position on the disc 3 of the cutting machine 20, and This is performed based on a counter (not shown) that arranges a limit switch (not shown) on the revolution path and counts the number of times the limit switch is operated by the protrusion. That is, since the number of glass tube products cut from one material 8 is preset, the number of revolutions of the disk 3 corresponds to the set number of glass tube products cut from one material 8 and the counter is used. Count the number of revolutions of disk 3. A discharge device (not shown) that removes the end loss (uncut material) remaining in the inner sleeve 13 when the counter value reaches the set number.
Operate. The discharge device blows the end loss by blowing air into the inner sleeve 13,
After the operation of the discharging device, when the counter counts one revolution of the disk 3, the operation of the discharging device is stopped, the material cutting operation is ended, and the material supply operation is restarted.

As described above, the step of cutting the glass tube product from the material 8 is performed by repeating the material supply operation and the material cutting operation described above.

Although the main shaft 24 is fixed in the above embodiment, the present invention is not limited to this, and both ends are held by rotatable bearings so that the main plate 24 is provided with the disk 3, the large gear 4, and the disk 23. The same effect can be obtained by fixing and rotating the main shaft 24. In this case, the drive disk 25 and the holding rod are obtained.
The synergistic effect is that 26 is unnecessary.

Further, in the above embodiment, the cutting operation due to the interlocking of the cutting machine 20 and the material supply unit 21 is controlled by counting the number of revolutions of the disk 3 by the counter, but the invention is not limited to this. You may make it control by operating time.

Further, although the glass tube material 8 is applied in the above embodiment, the present invention is not limited to this, and the same effect can be obtained by applying it to a solid glass rod.

Further, although the glass tube cutting machine 20 is applied in the above-mentioned embodiment, the present invention is not limited to this, and the same is applied when inserting a tubular or rod-shaped material into a horizontal machine in another field. The effect can be obtained.

Further, the present invention is not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

[0046]

As described above in detail, according to the glass tube material supplying device of the present invention, the glass tube material stocked in the material feeding means and supplied to the material supplying means through the inclination converting means is the material supplying means. Since it is supplied to the glass tube cutting device from the glass tube material, the glass tube material can be stably and automatically supplied to the glass tube cutting device, and since the glass tube material is stocked in the material delivery means, it is unattended. Can also be operated.

Further, since the glass tube material is held by the first disk group and pushed out to the glass tube cutting device by the pushing portion, it is possible to prevent the glass tube material from vibrating and collapsing. It is possible to reduce shape defects and cutting mistakes on the cut surface.

Further, since the inclination converting means is composed of the second disk group having different diameters, the inclination in the horizontal direction can be converted into the inclination in the vertical direction with a simple structure.

[Brief description of drawings]

FIG. 1 is a front view in which a glass tube material supply device according to an embodiment of the present invention is applied to a glass tube cutting device.

FIG. 2 is a side view in which the glass tube material supply device according to the embodiment of the present invention is applied to a glass tube cutting device.

FIG. 3 is a side view of FIG. 2 viewed from a B direction.

FIG. 4 is a side view of FIG. 2 viewed from a direction A (direction of a main shaft 24).

FIG. 5 is a front view of the glass tube cutting machine.

FIG. 6 is a side view of the glass tube cutting machine.

[Explanation of symbols]

 8… Glass tube material 9… Outer sleeve (material holding part) 13… Inner sleeve (material holding part) 20… Glass tube cutting machine (glass tube cutting device) 21… Material supply part (material supply means) 22… Groove 23… Disc (first disc group) 24 ... Main shaft (first drive shaft) 32 ... Extruding part 41 ... Material feeding part (material feeding means) 61 ... Tilt conversion part (tilt conversion means) 62 ... Shaft (second) Drive shaft) 63 ... Disk for tilt conversion (second disk group)

Claims (3)

[Claims] 1. A glass tube material supply device for supplying a glass tube material to a glass tube cutting device having a material holding part for holding a glass tube material inclined with respect to a floor surface, wherein the material holding part is provided with respect to the floor surface. A material supply means for holding the glass tube material inclined at the same angle and supplying it to the material holding part, and a glass arranged parallel to the floor and at the same angle as the material supply means. Material feeding means for stocking the tube material and feeding the glass tube materials one by one, and a tilt of the glass tube material sent from the material feeding means with respect to the material feeding means are converted into an inclination with respect to the floor surface of the material feeding means. A glass tube material supplying device, comprising: an inclination converting means for supplying the glass tube material to the material supplying means. 2. The material supply means comprises a first drive shaft that orbits the glass tube material, and a U-shaped member that is attached to the first drive shaft at a predetermined interval and is formed on the peripheral edge. A first disk group for holding the glass tube material in the groove, and an extruding section for extruding the glass tube material held by the first disk group into the material holding section. 1. The glass tube material supply device according to 1. 3. The inclination converting means comprises a second drive shaft that orbits the glass tube material, and a U-shaped member that is attached to the second drive shaft at a predetermined interval and is formed on the periphery thereof. The glass tube material supplying device according to claim 1, comprising a second disk group having different diameters for holding the glass tube material in the groove.