JPH0720074Y2 - Can opener - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a can opener for cutting the body of a metal can such as a spray can.

[0002]

2. Description of the Related Art Spray cans containing pesticides, lubricants and the like and spraying them from nozzles on the head are empty new stages before containing the contents, and internal treatments such as surface treatment and sealing In order to check the quality of the product, a sampling inspection is conducted in which some ends of the body of the spray can in the lot (the boundary between the canopy and the bottom cover) are cut and opened.

Conventionally, a manually operated cutter is used for the cutting and opening work, and the cutter is directly held by one hand to cut one side at a time, which requires a great deal of labor and labor. Besides, there is a problem that a dedicated cutting worker is required or the number of inspections per day is limited to a small number.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a can opener having a simple structure that can easily and cleanly cut the body of a can such as a spray can in view of the above problems. .

[0005]

A can opener according to the present invention will be described with reference to the illustrated embodiment. A can rotating motor 4, a can pressing motor 5, and a cup-shaped can rotating holder 13.
It comprises a can pressing holder 15, a push rod 8, a pair of cutters 26 and 27 for cutting the body of the can, and cutter guide rails 20 and 21.

[0006] The can rotation holder 13 holds the peripheral edge of the head of the can which is laid sideways to rotate the can. Therefore, the can rotation holder 13 is connected to the can rotation motor 4 via a rotation transmission mechanism by a horizontal rotation shaft 6. It is rotatably supported at a predetermined position. The can rotation holder 13 is preferably detachably fixed to the tip of the rotary shaft 6 so that a can according to the size of the can can be replaced and used.

The push rod 8 is supported so as to be horizontally slidable so as to be opposed to the rotary shaft 6 and also to be moved forward and backward by the forward and reverse rotation of the can pressing motor 5 through a rotary / linear motion converting mechanism. It is connected to the can pressing motor 5.

Since the can pressing holder 15 holds the bottom of the can and presses the can toward the can rotating holder 13, the can pressing holder 15 faces the can rotating holder 13 and is rotatably supported by the tip of the push rod 8. ing.

The cutter guide rails 20 and 21 are horizontally installed above the can rotating holder 13 and the can pressing holder 15 in parallel with the rotating shaft 6 and the push rod 8.

Each of the pair of cutters 26, 27 is attached to a cutter base 28, 29, and the cutter bases 28, 29 are attached.
The sliders 22 and 23, which are slidably mounted on the cutter guide rails 20 and 21, are vertically movable, and the heights thereof can be adjusted by screw shafts with knobs 30 and 31, respectively.

The can opener further includes a can rotating holder 1.
It is possible to provide at least a pair of receiving rollers 32 and 33 for supporting the can sandwiched by the can 3 and the can pressing holder 15 from below.

[0012]

In order to cut the body of the spray can 17 with this can opener, for example, the head of the spray can 17 from which the nozzle 18 projects is directed toward the can rotary holder 13 side.
The spray can 17 is positioned between the can 3 and the can pressing holder 15, the push rod 8 is moved forward by the can pressing motor 5, and the bottom of the spray can 17 is pressed by the can pressing holder 15. As a result, the spray can 17 is held between the can rotation holder 13 and the can pressing holder 15. In this case, since the can rotation holder 13 is cup-shaped, it holds the peripheral edge of the head of the spray can 17 in a state where the nozzle 18 is received.

Both sliders 22 and 23 are connected to the guide rail 20.
After sliding the cutters 26 and 27 along 21 to position the pair of cutters 26 and 27 corresponding to both ends of the body of the spray can 17, the cutter bases 28 and 29 of the cutters 26 and 27 are screwed with a knob 30.
The both cutters 26, 27 are pressed down against both ends of the body of the spray can 17 by lowering by 31 and the can rotating holder 13 is rotated by the can rotating motor 4. Since the can pressing holder 15 is rotatable with respect to the push rod 8, when the can rotating holder 13 rotates, the spray can 17 rotates integrally with the can rotating holder 13 and the can pressing holder 15 on both sides, and the spray can 17 is rotated. Both ends of the body of the cutter are a pair of cutters 2.
It is cut by 6 ・ 27. In this case, if the spray can 17 is supported from below by the pair of receiving rollers 32 and 33, it is possible to prevent the spray can 17 from being pressed by the cutters 26 and 27 from above and swinging.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. As shown in FIG. 1 to FIG. 3, this can opener is installed on one base plate 1 so that the whole can be installed on any place such as a desk.

On the base plate 1, a pair of bearing base plates 2 and 3 are erected and fixed so as to face each other, and a can rotating motor 4 and a can pressing motor 5 capable of reversing in the normal direction are attached. A rotating shaft 6 is rotatably and horizontally supported by a thrust bearing 7 on one of the bearing base plates 2.
A push rod 8 is mounted on the other bearing base plate 3 so as not to rotate by a guide bearing 9 but slidably in the axial direction and horizontally.

The rotary shaft 6 includes a rotation transmission mechanism, that is, a sprocket wheel 10 fixed to the rotary shaft 6, a sprocket wheel 11 fixed to the shaft of the can rotation motor 4, and a chain 12 hung between them. The rotation of the can rotation motor 4 is transmitted via the.

The rotary shaft 6 penetrates both sides of the bearing base plate 2, and the tip 6a thereof has a quadrangular shape or a polygonal shape. Then, the can rotation holder 13 is attached to the rotation shaft 6.
The quadrangular or larger polygonal mounting hole 14 is fitted into the tip 6a of the rotary shaft 6 so as to be detachably mounted, and the can rotary holder 13 rotates integrally with the rotary shaft 6.

On the other hand, a can pressing holder 15 is rotatably attached to the tip of the push rod 8 by a bearing 16. The can pressing holder 15 and the can rotating holder 13 are
The bearing base plates 2 and 3 are opposed to each other on the same axis.

The can rotation holder 13 has a nozzle 18 that projects the head of the spray can 17 to be cut from the head.
It is cup-shaped so that it can be held in the received state. In addition, a stepped portion 13a is formed around the entire circumference of the opening of the can rotation holder 13 so that it can be fitted to the periphery of the head of the spray can 17 and held securely.

Further, the can pressing holder 15 is ring-shaped, and a stepped portion 15a is formed on the entire circumference of the opening peripheral edge thereof so that it can be fitted to the peripheral edge of the bottom portion of the spray can 17 and held securely. The step portion 15a and the can rotation holder 13
The surface of the stepped portion 13a is formed with knurls to enhance the frictional force with the can.

A rack rod 19 is directly connected to the push rod 8, and the rack rod 19 meshes with a pinion (not shown) rotated by the can pressing motor 5. Therefore, when the can pressing motor 5 rotates forward or backward,
The rotation is converted into a linear motion by the rack and pinion, and the can pressing holder 15 is advanced or retracted integrally with the push rod 8.

A can-rotating holder 1 is provided between the bearing base plates 2 and 3.
The two guide rails 20 and 21 are provided above the can 3 and the can pressing holder 15 so that the rotary shaft 6 and the push rod 8 are provided.
It is installed horizontally in parallel with. A pair of sliders 22 and 23 are slidably mounted on the guide rails 20 and 21. Each of these sliders 22 and 23 is provided with a split 24, and the upper and lower sides of the split 24 are tightened to the guide rail 20 with tightening screws 25, whereby the sliders 22 and 23 are moved to the guide rail
It can be fixed at any position on 0.21.

The sliders 22 and 23 have cutter bases 28 and 29 in which circular cutters 26 and 27 are axially supported at their lower ends, respectively.
Are vertically slidable vertically. The height of each of the cutter bases 28 and 29 can be adjusted by screw shafts 30 and 31 with knobs.

On the other hand, on the base plate 1, a pair of receiving rollers 32 and 33 for supporting the spray can 17 from below.
Are rotatably supported by bearing bases 34 and 35 at both ends in parallel with the push rod 8.

In order to cut the body of the spray can 17 with this can opener, the head of the spray can 17 from which the nozzle 18 projects is directed toward the can rotary holder 13 side.
The spray can 17 is positioned between the can pressing holder 15 and the can pressing motor 5, and the push rod 8 is moved forward so that the bottom of the spray can 17 is pressed by the can pressing holder 15. As a result, the spray can 17 becomes the can rotation holder 1
3 and the can pressing holder 15. In this case, since the can rotation holder 13 is cup-shaped, it holds the peripheral edge of the head of the spray can 17 while receiving the nozzle 18, and the stepped portion 13a at the peripheral edge of the opening of the can rotary holder 13 is the spray can 17. Since the rim of the head and the step 15a of the can pressing holder 15 are fitted to the rim of the bottom of the spray can 17,
The center of the spray can 17 is automatically aligned.

Both sliders 22 and 23 are connected to the guide rail 20.
・ Sliding along 21 to position the pair of cutters 26 and 27 at the opposite ends of the body of the spray can 17, and tightening the tightening screws 25 to fix the sliders 22 and 23, and then the screw shaft with knob 30・ By rotating 31 respectively, the cutter bases 28 ・ 29 are lowered by the screw shafts 30 ・ 31 with knobs,
Both cutters 26 and 27 are pressed against both ends of the body of the spray can 17.

When the can rotating motor 4 is driven to rotate the can rotating holder 13 in such a state, the can pressing holder 1 is rotated.
Since 5 is rotatable with respect to the push rod 8, the spray can 17 rotates integrally with the can rotating holder 13 and the can pressing holder 15 on both sides, and both ends of the body of the spray can 17 have a pair of cutters 26. It is cut by 27. In this case, since the spray can 17 is supported from below by the pair of receiving rollers 32 and 33,
Even if the cutters 26 and 27 are pressed from the upper side and try to swing, the swing is prevented. If the entire circumference of the body of the spray can 17 is not completely cut and only a part is left, the inside and the top of the spray can 17 can be inspected at the same time without being completely separated from the body. Also, the post-disposal becomes easier.

Since the can rotating holder 13 is attachable to and detachable from the rotating shaft 6, if a plurality of can rotating holders having different sizes are prepared, it is possible to cope with different can sizes. The can pressing holder 15 is also preferably detachable from the push rod 8.

Needless to say, the can opener of the present invention can be applied to the cutting of the body of cans (especially vertically long cans) other than spray cans.

[0030]

According to the can opener of the present invention, the following effects can be obtained. When the can is laid sideways and sandwiched from both sides by the can rotating holder and the can pressing holder, and the can rotating holder is rotated by the can rotating motor with a pair of cutters pressed against the both ends of the body of the can from above. Since the can can be rotated integrally with the can rotating holder and the can pressing holder while sandwiching the can, both ends of the body of the can can be simultaneously and automatically cut by the pair of cutters.

Since the can pressing holder can be automatically advanced and retracted by the can pressing motor and the height and position of the pair of cutters can be manually adjusted, it is possible to easily cope with cans having different lengths and diameters. it can.

Since the can rotation holder is cup-shaped,
Even a spray can with the nozzle protruding from the head can be held in the state of receiving the nozzle. Since it has a simple structure with a small number of parts as a whole, it can be provided at low cost.

By adopting a structure in which the can rotation holder is detachably fixed to the tip end portion of the rotation shaft, it is possible to easily cope with cans of different sizes. If the can is supported from below by at least a pair of receiving rollers, it is possible to prevent the can from being pressed by the cutter from above and swinging.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of an example of a can opener according to the present invention.

FIG. 2 is a plan view with a part of the same omitted.

FIG. 3 is a transverse sectional view of the above.

[Explanation of symbols]

 4 Can rotating motor 5 Can pressing motor 6 Rotating shaft 8 Push rod 13 Can rotating holder 15 Can pressing holder 17 Spray can 20/21 Guide rail 22/23 Slider 26/27 cutter 28/29 Cutter stand 30/31 With knob Screw shaft 32/33 receiving roller

Claims (3)

[Scope of utility model registration request] 1. A can rotating motor 4, a can pressing motor 5, a cup-shaped can rotating holder 13, a can pressing holder 15, a push rod 8 and a pair of cutters 2 for cutting the body of the can.
6, 27 and cutter guide rails 20 and 21, and the can rotation holder 13 holds the peripheral edge of the head of the can that is laid sideways to rotate the can. Therefore, rotation transmission to the can rotation motor 4 is performed. It is rotatably supported at a predetermined position by a horizontal rotary shaft 6 connected through a mechanism, and the push rod 8 is supported so as to be horizontally slidable while facing the rotary shaft 6, and at the same time, the can pressing member is pressed. The can pressing motor 5 is connected to the can pressing motor 5 through a rotation / linear motion converting mechanism so as to be moved forward and backward by the forward and reverse rotation of the driving motor 5. The can pressing holder 15 holds the bottom of the can to hold the can. Since it is pressed toward the rotary holder 13, it is rotatably supported by the tip of the push rod 8 so as to face the can rotary holder 13, and the cutter guide rails 20 and 21 are used to press the can rotary holder 13 and the can pressing member. Above the holder 15, it is installed horizontally in parallel with the rotary shaft 6 and the push rod 8, and each of the pair of cutters 26 and 27 has a cutter base 28.
Each of the cutter bases 28 and 29 is attached to a slider 22 and 23 that is slidably attached to the cutter guide rails 20 and 21 so as to be vertically movable, and a screw shaft with knob 30 and 31 is attached. The can opener is characterized in that the height can be adjusted by. 2. The can rotating holder 13 is detachably fixed to the tip of the rotating shaft 6.
The can opener described in. 3. The can rotating holder 13 and the can pressing holder 15
The can opener according to claim 1, further comprising at least a pair of receiving rollers 32 and 33 for supporting the can sandwiched by and from below.