JPS6234557B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cap tightening machine for writing instruments, and more specifically, the present invention relates to a cap tightening machine for writing instruments, and more specifically, it aligns and transfers caps supplied from a rotary hopper, adjusts the direction of the caps, and then caps the writing instruments using air pressure. This invention relates to a cap tightening machine for a writing instrument that is inserted into a writing instrument and further tightens the cap of a writing instrument with a cap fitted using the air pressure.

Conventionally, cap tightening machines for writing instruments have been developed and used in various ways, but since the cap was pressed to achieve the fitting dimensions of the cap and the tip of the barrel all at once, it was difficult for the cap to fit into the tip of the barrel. There were problems such as cracking of the cap and damage to the tip of the cap and barrel. Furthermore, when supplying caps, problems occurred in aligning and transporting them, which hindered mass production.

The present invention has been devised in view of the above-mentioned problems, and is intended to increase reliability in transporting, aligning and feeding caps, and to reduce damage to caps and writing instrument barrels.

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is an external perspective view showing the entirety of the present invention, and FIG. 2 is a schematic diagram showing the relationship between the main parts. The rotary hopper 1 has stepped portions at one end or tapered caps 2 randomly stored from one end to the other end. One end of a roll 3 for transporting the cap 2 that falls from the top of the rotary hopper 1 with the stepped or tapered large diameter portion facing upward is arranged corresponding to the upper part of the fixed plate of the rotary hopper 1. . This roll 3 is arranged to be inclined with the rotary hopper 1 side facing upward. A small diameter portion is provided at the lower part of the inclination of the roll 3 so that the stepped or tapered large diameter portion of the cap 2 passes therethrough. The cap 2 falls into the swing chute 4 through this small diameter portion. Cap 2 that fell into this swinging chute 4
is housed in an opening provided on the circumferential surface of the rod feeder 5, and the rod feeder 5 rotates intermittently in synchronization with a writing instrument conveyor 6, which is a chain conveyor, belt conveyor, or the like. When the cap 2 housed in the rod feeder 5 stops in relation to the transport conveyor 6, the cap 2 and the writing instrument are separated by the first air injection nozzle 7 and the second air injection nozzle 8 provided in the rod feeder 5. A loose fit of 9 is made. This loosely fitted cap 2 and writing instrument 9 are further conveyed by the conveyor 6, and the cap 2 and writing instrument 9 are fitted even more firmly at the cap tightening portion 10, and then discharged. Here, parts related to the writing instrument conveyor 6 will be explained in detail. Conveyor 6
consists of a chain conveyor, a belt conveyor, or the like, and a lug plate 11 on which a writing instrument 9 is placed is fixed to the upper part of the conveyor. This conveyor 6 is driven intermittently in the direction of the arrow by a cam mechanism (not shown) such as a Geneva cam, and moves upward from the lower end of the writing instrument hopper 12, which functions as one side of the hopper 12. Due to this upward movement, the writing instrument 9 is fitted into the lug plate 11 and conveyed, and after the cap 2 is loosely and tightly fitted into the writing instrument 9, the writing instruments are sequentially discharged onto the product conveyor 13, and the conveyor 6 is moved downward. The writing instrument hopper 12 is moved and connected to the writing instrument hopper 12 in an endless manner.

Next, each part of the apparatus of the present invention will be explained in detail with reference to the accompanying drawings. The rotary hopper 1 is placed on a hopper base 102 of a cylindrical support 101 that stands upright on the base of the apparatus, and one end of a fixed table 103 shown in FIG. 3 is attached to this hopper base 102. This fixed table 10
A rotary table 104 is rotatably supported by a bearing or the like on the shaft portion of No. 3 with respect to a fixed table 103.
The cap 2 deposited at the bottom of the rotary hopper 1 is placed on the outer periphery of the rotary table 10.
4, the partition plate 10 is sequentially moved upward as the partition plate 10 rotates.
5 is fixed in a predetermined number. The fixed table 1
At the upper part of the portion facing the inside of the hopper of the rotary table 104, there is a chute plate 106 for guiding the cap 2, which has been transferred upward by the partition plate 105 of the rotary table 104, to the roll 3 when it falls due to its own weight.
is fixed, and regulating plates 107 are attached to both sides of the shoot plate 106 to regulate the cap 2 from falling. Said rotary table 1
04 is driven by a motor (not shown) mounted on the hopper base 102 in an appropriate manner. The caps 2 that have fallen while sliding on the chute plate 106 are sequentially deposited on the rolls 3, and are aligned and transported by the rotation of the rolls 3, 3. These rolls 3, 3 are moved outward from above each other (5th
The belt is driven by the motor 301 in the direction of the arrow in the figure).
Driven by a chain or the like. This roll 3,3
Due to the rotation of the cap 2, the cap 2 moves along the inclination while hanging between the rolls 3, with the stepped or tapered large diameter portion facing upward. Also, among the caps 2 that fell onto roll 3, roll 3,
3, that is, when it falls, it overlaps with the cap 2 that fell first, or the direction of the fall is sideways and it does not hang between the rolls 3 and 3, or the roll 3, 3 is removed from the top of the roll 3 by a rotary piece 303 driven and rotated by a belt, chain, etc. by a motor 302, falls into the rotary hopper 1, and is returned to the rotary hopper 1. It is transferred above the rotary hopper 101 by the table 104. The cap 2 suspended between the rolls 3, 3 will not come off from the rolls 3, since it is regulated by the floating prevention plate 304. The cap 2 suspended between the rolls 3 and 3 is transported between the rolls 3 and 3.
It reaches the small diameter part 305 provided at the end of. This small diameter portion 305 has enough clearance for the stepped portion and the tapered large diameter portion of the cap 2 to pass through, so that the cap 2 that has reached the small diameter portion 305
falls downward and fits into the swing chute 4. The swing chute 4 has a lower end portion supported by a support plate 401 via a pin 402 on the cylindrical column 101 or the base of the device, and a swing mounting plate 403 is provided approximately in the middle, and a crank arm 404 is further supported by a crank. 406 via a pin 407. The crank 406 is constantly rotating in one direction by an appropriate method. Further, a correction plate 408 and a guide 409 are attached to the upper part of the swinging chute 4 to correct the falling posture of the cap 2 falling from the roll 3. This rod 411 is provided to limit the swing range of the swing chute 4, and its tip is inserted into the support plate 412 fixed to the cylindrical support 101 or the base of the device. It is said that it is possible to slide. The guide 409 partially connects the roll 3,
It has a part that comes into contact with the cap 2 hanging down from the cap 3, and serves as a guide when the cap 2 is dropped into the swing chute 4. The caps 2 that have fallen into the swing chute 4 one after another are inserted into holes 501 that are bored inward from the circumferential surface of the rod feeder 5.
Insert them one by one. This hole 501 communicates with the center of the rod feeder 5, and the communication part 5
A protrusion 503 is formed on the front side of the cap 2 to prevent the cap 2 from falling. Also, the communication part 50
In addition to the rotation of the rod feeder 5, there is a
An air injection nozzle 7 is fixed in any suitable manner to the base of the device. In addition, the rod feeder 5 is
In synchronization with the movement of the transport conveyor 6, the hole 501 of the rod feeder 5 corresponds to the stop position of the lug plate 11. Also, facing the first air injection nozzle 7, the lug plate 1
A second air injection nozzle 8 is arranged at the base of the device via 1 . This second air injection nozzle 8
presses the writing instrument 9 placed on the lug plate 11 from the tail plug side, and presses the writing instrument 9 placed on the lug plate 11 to open the hole 5 of the rod feeder 5.
01, and then the first air injection nozzle 7 sprays the cap 2.
The writing instrument 9 with the loosely fitted writing instrument 9 is returned onto the lug plate 11 and stabilized. The writing instrument 9 loosely fitted into the cap 2 reaches the cap tightening section 10 by the movement of the conveyor 6. This cap tightening part 10 includes an arm 1003 that is pivotally supported by a pin 1002 on a crank 1001 that rotates in synchronization with the movement of the conveyor 6, and a pin 1004 that connects this arm 1003.
A connecting body 1005 pivotally supported by a connecting body 1
A push rod 1007 that is attached to the housing 1005 and can swing freely on the housing 1006, and this push rod 1
007 and a pressing plate 1008 fixed to the tip of the writing instrument 9, which securely tightens the cap of the writing instrument 9 into which the cap is loosely fitted by the first and second air injection nozzles. Thereafter, the writing instrument 9 with the cap 2 tightly fitted is discharged onto the product conveyor 13 by the movement of the conveyor 6.

Next, the operation of the device of the present invention will be explained. The cap 2 transferred from the rotary hopper 1 to the roll 3 comes into contact with a guide 409 attached to the swing chute 4, and as the crank 406 rotates, the guide 409 rotates the crank arm 404,
The swing mounting plate 403 swings back and forth, making it easy for the cap 2 to fall into the swing chute 4. The correction plate 408 attached to the swinging chute 4 limits the range of swinging by the elastic force of the spring 410, thereby allowing smooth swinging. Cap 2 inserted into hole 501 of rod feeder 5 from swing chute 4
is a position at 90 degrees from the state where the hole 501 of the rod feeder 5, which rotates in synchronization with the conveyance of the conveyor 6, is fitted with the cap 2 from the swinging chute 4,
That is, the lug plate 11 attached to the conveyor 6
During the time when the conveyor 6 reaches the position corresponding to Hole 5 of rod feeder 5
Insert it into cap 2 in 01. Next, the first air injection nozzle 7 injects air through a solenoid valve (not shown) to push the cap 2 into which the writing instrument 9 is inserted toward the lug plate 11, and when the cap 2 is placed in a fixed position on the lug plate 11, Air injection stops.

Since the present invention is constructed as described above, the caps can be reliably transferred and aligned, the caps can be supplied more reliably, and damage to the caps and barrel can be reduced.

In the embodiments of the present invention, the writing instrument has been described in terms of fitting a cap, but the present invention is not limited to this, but may include a writing instrument having a cylindrical barrel and a cap-like member fitting to one end of the writing instrument. It can also be applied to

[Brief explanation of the drawing]

Figure 1 is an external view showing the overall structure of the present invention, Figure 2 is a schematic diagram showing the relationship between the main parts, Figure 3 is a diagram showing the relationship between the rotary hopper and the roll, and Figure 4 is a front view of the rotary hopper. FIG. 5 is a diagram showing the operation of the roll, and FIG. 6 is a diagram showing the fitted state of the cap and the writing instrument. 1...Rotary hopper, 2...Cap,
3... Roll, 4... Rocking chute, 5... Rod feeder, 6... Conveyor, 7, 8...
Air injection nozzle, 9...writing instrument, 10...cap fastening section, 12...writing instrument hopper, 13...product conveyor.

Claims (1)

[Scope of Claims] 1. A rotary hopper that transports randomly stored caps to the upper part by means of a rotary plate, a transporting means for aligning and transporting the caps on the upper part of the rotary hopper, and a means for inserting and dropping the caps from the transporting means. a swinging chute, a rotating drum that accommodates the cap that has fallen from the swinging chute in a hole provided on its circumferential surface, and a preload between the writing instrument barrel and the cap, the tip of which is fitted with the cap accommodated in the drum. 1. A cap tightening machine for a writing instrument, comprising: a cap tightening means for further pressing the preloaded cap; and a conveying means for conveying the writing instrument. 2. The cap tightening machine for a writing instrument according to claim 1, wherein the drum has holes provided in the circumferential surface communicating with each other at the center of the drum. 3. The preload means includes a first air injection nozzle fixed to the center of the drum separately from the drum, and a second air injection nozzle provided at a position facing the first air injection nozzle via the conveyance means. and an air injection nozzle.
Cap tightening machine for writing instruments as described in section.