JPS6020169B2 - Equipment for removing excess mouth parts of synthetic resin containers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for removing the excess mouth portion of a synthetic resin container.

Containers made of soft synthetic resin, particularly blow-molded containers, usually have a surplus part formed integrally with the mouth part, so it is necessary to remove this part before filling the container with contents.

The conventional means for cutting off the excess portion at the mouth of the container is one in which the container is rotated and the cut portion of the excess portion is cut off by applying it to a fixed blade (Samurai Kosho No. 45-3350). o} The container is fixed, the blade is rotated, and the excess portion is cut off by this rotating blade (Samurai Kosho 48-
23584), and one in which the inner container is fixed and the excess portion is cut off with a pair of blades (Japanese Patent Publication No. 44-6875).

However, it is difficult to apply the above-mentioned method of cutting the container while rotating it, unless the container has a symmetrical shape around the central axis and has a certain hardness. There is a problem that there are restrictions on the containers that can be used.

Also, those that cut by rotating the blade, such as a saw,
[Although it is excellent in that it does not have the problem of desk failure,
There is a drawback that when cutting the excess portion, the cutting chips easily enter the container. Furthermore, the one by Shiichi is [ee, '0]
Although there are few problems with this method, there are disadvantages in that the container opening is easily deformed when cutting the trout, damaging the threaded portion, and it is difficult to achieve precision in the cutting surface and cutting position. In view of this, the present invention has been devised to remove the excess mouth part of a synthetic resin container, which allows the surplus mouth part to be reliably cut at an accurate position and with high precision even if the container is irregularly shaped and soft. This was done for the purpose of providing equipment.

The present invention will be explained below with reference to embodiments shown in the drawings.

The main components of the container mouth surplus meat cutting device according to the present invention are as follows:
As shown in cross section in FIG. 1, there is a container holding means 3 having a holding body 20 including a container holder 2 that receives and stably holds the lower half of the container 1, and a container holding means 3 that moves together with the container holding means 3. The container holding means 3 includes a mouth holding device 4 that penetrates and receives the surplus mouth part la to be cut of the container 1 held in a horizontally laid down position, and a mouth part holding device 4 that penetrates and receives the surplus mouth part la to be cut, and a mouth part holding device 4 that penetrates and receives the surplus mouth part la to be cut. The cutter 5 is fixed at a position corresponding to the cutting portion of the excess mouth portion la.

In this embodiment, the means for supplying the container 1 to be excised is to feed the container holder 2 into the supply passage with the lower half of the container 1 supported by iron, and to feed the container 1 by a pair of star wheels rotating in a horizontal plane. is adapted to be taken out into the take-out passage by the star foil of the container holding means 3.
After receiving the container 1 including the container holder 2 in a vertical position, it is lowered to a horizontal position and then returned to the vertical position. It is equipped with a mechanism to move it.

An example of the holding body 2 and a mechanism for raising and lowering it is shown in the first example.
This will be explained according to the diagram.

Rails 13, 13 are arranged in parallel on both sides of the fuselage 12,
Conveying chains 14, 14 along these rails 13, 13
The upper running side is spanned.

A fixture 15,
A frame body 16 is attached via 15, and this frame body 16,16
At least two guide rods 17, 17 are stretched between them to form a conveyor 18, and a large number of these conveyors 18 are attached to the chains 14, 14 at a constant pitch.

A movable body 19 that is movable along the guide rods 17, 17 is supported, and a holder 20 is provided on this movable body 19.

This holder 20 has an L-shaped side surface and is pivotally supported by the movable body 19 by a shaft 22 that is fitted into a bearing 21 outside the corner of the holder 20 . A gear 23 is formed on the outer periphery of approximately half of the bearing portion 21, and this gear 23 is connected to a rack 25 of a rack village 24 supported by the movable body 19 so as to be movable in parallel with the guide rods 17, 17. The side 2 of the holding body 20 is meshed with the holding body 20 according to the movement of the rack village 24.
0a is configured to be freely rotatable between a horizontal position and a vertical position. On one side 20a of the holder 20, a vessel-shaped container holder 2, in which the lower half of the container 1 can be fitted as tightly as possible, is fed out from the end of the supply V supply passage by a star foil. This is now being relocated,
The other side 20b is fixedly supported by the holding arm 26 and has a shape structure that allows the container holder 2 to be stably supported when it is laid down.

Cam rollers 27 and 28 are vertically installed on the lower surface of the movable body 19 and one end of the rack punch 24, respectively.
The cam roller 27 is iron-coupled with a cam register 29 of double-sided structure arranged on the machine body 12, and the force-roller 28 of the rack punch 24 is in contact with a cam 30 of single-sided structure. is pressed against the moving body 19 to the right in the figure by the imitation 39, and the rear end of the rack punch 24 is pressed against the frame 16.
The stopper 31 is arranged such that it can freely come into contact with a stopper 31, which is made of a screw thread inserted through the stopper 31 and whose protrusion amount can be adjusted.

The cam 29 that controls the movement of the movable body 19 has an arrangement structure whose plan view is shown in FIG.

That is, a straight section 32 that is conveyed straight from the container receiving position A, an advancing process section 33 that is gradually inclined from this straight section 32 toward the cutting position B, and a linear cutting process section that includes the cutting position B. 34, and a retracting process part 35 inclined toward the container removal part C, and the device has a cutting process part 34.
When the opening of the container 1 held by the container holding means 3 is held at a predetermined position, the cut opening portion of the container 1 is held at a predetermined position. Further, a cam 30 for controlling the movement of the rack punch 24 is provided with a lodging process which is mirror-oblique in the opposite direction to the forward process part 33 in a portion of the control cam 29 of the movable body 19 that corresponds to the front half of the forward process part 33. It has a section D and an upright step section E that corresponds to the latter half of the retreat step section 35 and is tilted in the opposite direction to the retreat step section 35, and the lowering step section D
The rack village 24 is moved backward (to the right in the figure) to incline the holder 20 by 90 degrees, and the rack punch 24 is pushed back in the raising process section E to raise the holder 20 to its original position. On the other hand, the container opening holding device 4
It is provided on the frame 16 at a position that substantially coincides with the marquee of the mouth of the container 1 held by the container 1 when it falls down, and a shoulder rest 36 on which the shoulder portion lb of the mouth of the container 1 to be cut comes into contact. , a shoulder rest 37 on which the shoulder portion lc at the base of the mouth surplus portion la comes into contact.
A cutter entry space 38 whose lower end is open is formed at the cutting position X at the base of the surplus cut portion la.

As shown in FIG. 3, the blade 5 is a thin blade-shaped object that corresponds to the blade entry space 38 of the container mouth holding device 4 and is installed upward along the path of the blade. The starting end 5h side of the portion 5a is located below the lower surface of the opening cutting position It is formed obliquely and is fixed to the body 12 by a support mechanism 3.

Next, the operation of the above embodiment will be explained.

Containers 1 are conveyed through the supply passage in a vertical position with their lower halves supported by a container holder 2 in a vertical position, and are oriented by star foils to reach a delivery position to the container holding means 3.

At this position A, the container holder 2 is pushed out by the star foil and transferred onto one side 20a of the holder 20 of the container holding means 3, and the container holder 2 is stabilized with the side 20b of the holder 20. It is supported by The container holding means 3 that has received the container 1 together with the container holder 2 is moved in parallel toward the take-out side by the movement of the chains 14, 14, and then the cam roller 28 of the container holding means 3 that supports the container holder 2 is moved. The rack village 24 is moved to the right in FIG. 1 by being pushed by the oblique part of the forward stroke portion B of the cam 30, and the holder 20 is moved to the shaft 22 through the gear 23 that meshes with the rack 25 of the rack punch 24. It is rotated 90 degrees counterclockwise in the same figure, centering on , and assumes the posture shown by the chain line in FIG.

Then, the cam roller 27 is guided by the cam 29, and the entire container holding means 3 moves to the left in FIG. When inserted, the shoulder portions lb, lc of the container 1 abut against the shoulder rests 36, 37, and the cutting position is determined.

Furthermore, as the container holding means 3 moves, the extra mouth part la of the container 1 held by the mouth holding device 4 comes into sliding contact with the cutter 5, and the cut point of the container mouth part is gradually cut by the mirror slant of the cutter 5. The cutting is completed before it passes through the blade 5.

In this case, the cut portion of the container 1 is prevented from moving upward by the mouth holding device 4, so even if the cutting progresses with the oblique blade of the cutter 5, the container 1 will move and the cut surface will be bent. There is no problem such as step formation, and the cutting is done gradually by the slanted blade of the cutter 5 installed in the field, so there is no risk of the cutting position changing midway and chips entering the container 1. Not at all. The cut surplus portion la of the mouth portion freely falls downward from the open lower portion of the empty space 38 of the mouth portion holding device 4, and is collected as appropriate.

Upon completion of cutting the excess mouth portion la, the cam roller 27
Due to the action of the cam 29 and the cam 29, the container holding means 3 moves back to the right in FIG.
0 by the action of the spring 39, the rack punch 24
moves to the left in the figure, and the holder 20 is rotated 90 degrees around the shaft 22 via the rack 25 and the gear 23 to stand up, and the container 1 is returned to an upright position.

When the container holding means 3 reaches the take-out part, the containers 1 are taken out from one side 20a of the holding body 20 by the star foil, and are collected by the container holder 2.

In this embodiment, a case is explained in which the container holder 2 is used as the container holding means 3, but the holder 2 may not necessarily be used as long as it can stably support the container 1. Further, in this embodiment, the container holder 2 is replaced by a holder 20.
The case has been described in which the container holder 2 is configured separately from the holder 20 and is joined in advance when the container 1 to be cut is fed. It is also possible to iron the container 1 to be cut at the time of delivery, and either method can be selected as required. As described above, the present invention supports the lower half of the container in an upright position via a container holder that iron-supports the container on the holder of the container holding means, and then displaces the holder into a lying position and displaces the container at the mouth of the container. The frame of the knife is fixedly installed by moving the cut part of the container mouth forward toward the holding device, inserting the excess mouth part into the holding part, and holding the cutting part of the container mouth in an immovable state using the force of the movement. Since the slanted blade gradually cuts into the excess portion of the mouth and guides the cutting process, even if the container itself is soft and irregular in shape, it can be reliably cut. Since the cutting is performed after the insertion and pressure acid is applied, the above-mentioned cutting can be done without being affected by the properties of the container itself.
Moreover, since the cutting position does not change during cutting, there is no problem such as the cut end of the container mouth being bent or stepped after cutting.

In addition, since the cutter is fixedly installed and moves while pressing against the cut point at the mouth of the container to guide the cutting, no chips are generated during cutting, so there is no risk of chips or shavings getting into the container. It has various effects such as no Note that the present invention is not limited to the illustrated embodiments, and design changes may be made arbitrarily without departing from the technical idea of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the main part of the device of the present invention, FIG. 2 is a plan view showing the cam portion, and FIG. 3 is a front view showing the blade of the cutting portion. 1...Container, la...Excess mouth part, l
b, lc... Shoulder portion, 2... Container holder, 3... Container holding means, 4... Mouth holding device, 5...・Knife, 12... Aircraft, 1
3...Rail, 14...Chain, 16
...Frame body, 17...Guide rod, 18.
...Carrier, 19...Moving object, 20...
...Holding body, 22...Shaft, 23...Gear,
24... Rack pestle, 25... Rack,
26... Holding arm, 27, 28... Cam roller, 29... Cam groove, to 30... Cam, 36, 37
...Shoulder rest, 38...Empty space. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1 A frame body that can be driven transversely with respect to the aircraft body, a moving body mounted on this frame body so as to be movable in a direction perpendicular to the direction of movement of the frame body, and a posture orthogonal to the direction of movement and a horizontally reclined posture on this moving body. a holder that is supported in a manner that it can be rotated up and down, and that holds the lower half of the container to be cut made of synthetic resin either directly or via a container holder; A mouth holding device that accepts the excess mouth portion of a container in an inverted position and holds the shoulder of the container mouth under pressure; A device for removing an excess portion of the opening of a synthetic resin container, comprising a knife having an inclined blade that cuts the portion by slidingly contacting the portion.