JP2703190B2 - Blade plate stripping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a Thomson blade withdrawal device for use in manufacturing paper boxes and the like.

[0002]

2. Description of the Related Art Conventionally, a paper box punching device such as a Thompson machine has been used to produce a paper box made of cardboard or cardboard paper, and a paper sheet contour of a required shape obtained by developing a paper box from a single paper plate is generally used. At the same time as a series of punching, cuts necessary for assembling into a paper box or opening the paper box are made at required portions of the paper piece.

[0003] Here, a so-called Thomson blade is used as a cutting tool for punching or cutting a paper piece contour. This Thomson blade is provided with a through slot in a wooden base plate, and a plurality of blade plate pieces having a divided configuration are implanted in the slot. The load acting on the blade plate during driving is received by the surface plate.

[0004] When the Thomson blade is damaged by repeated use, the damaged blade plate is pulled out from the base plate and replaced.
A method is employed in which the base plate is fixed with the blade edge facing upward, and the base plate is pulled out from the base plate using a general-purpose clamping tool such as pliers.

[0005]

As described above, in the Thomson blade, a large number of blade plate pieces are planted in a through-hole formed in the base plate in a closely fitting manner, and the blade edge is spread in a planar manner. Since the blade tip protrudes from the base plate surface at a predetermined height, if a conventional general-purpose holding tool is used to pull out the blade plate from the base plate, the holding tool must be free-handed with another blade plate. It is difficult to simply bring the blade plate piece to be extracted (hereinafter, referred to as a to-be-extracted blade plate piece) so as not to touch the cutting edge. In addition, since the pulling force after holding the blade piece to be extracted with the holding tool depends only on the force of the hand holding the holding tool, the worker requires considerable arm strength and cannot easily be pulled out. Things.
Furthermore, since the operation is performed by bringing the hand close to a sharp edge that is spread in a plane, it is dangerous and time-consuming.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned point, and the apparatus is placed on a base plate in such a manner that the apparatus is set up on a blade plate piece to be extracted, and the blade plate piece can be easily operated only by operating a handle. It is an object of the present invention to provide a blade plate piece extracting device with the convenience of being extracted.

[0007]

In order to achieve the above object, a blade plate pulling-out apparatus according to a first aspect of the present invention is provided with a frame having a downwardly extending support leg and a vertically movable member mounted in the frame. The first clamping body extends downwardly at the front side of the main body portion and extends upward at the rear side of the main body portion away from the clamping portion, and intersects with the first clamping body. A second holding body pivotally attached to the main body of the first holding body, the second holding body having a holding portion facing the holding portion of the first holding body, and an operating portion facing the operating portion of the first operating body; An operating handle, which is pivotally attached to the frame in association with an operation unit of the body, and is turned at a predetermined angle by operating the handle to close the second holding body and move the second holding body to the first holding body; comprising an actuation member for integrally moved up and down together with the holding member, the
The operation member is guided to move up and down the second holding member around the operation member.
Guide groove, and cut out the bottom of the guide groove.
A cam portion for abutting the operation portion of the holding member, and
Cut off both walls of the guide groove on the upper side of the cam part in contact with the part
A locking recess formed by forming a stop recess and locking the edge of the locking recess.
The pin is projected from the upper end of the second holding body .

According to a second aspect of the present invention, the frame in the above-mentioned first embodiment has a pair of left and right side plates facing each other and a spacer interposed between the two side plates. A support leg is provided at each lower end of both side plates, and a support leg is provided on the spacer away from the support leg rearward.
The apparatus is characterized in that the apparatus is configured to be self-supporting by the supporting legs of the book.

According to a third aspect of the present invention, there is provided a blade piece pulling device in which the holding portion of the first holding body and the operating portion in the blade piece pulling device of the first aspect are parallel to each other, and the holding portion and an outer surface of the operating portion are provided. A plurality of guide rollers for rotating and contacting the first holding member and guiding the lifting and lowering of the first holding member are attached to the frame.

[0010] According to a fourth aspect of the present invention, the main body of the first holding member in the blade plate extracting apparatus according to the first aspect is formed in a rectangular cylindrical shape, and the main body of the first cylindrical member is formed in the rectangular cylindrical main body. A spring for penetrating the pivot of the second holding member through both walls of the rectangular tubular main body through the holding member of the second holding member, and biasing in the opening direction between the operating portions of the first and second holding members is provided. It is characterized by wearing.

According to a fifth aspect of the present invention, there is provided a blade piece extracting device, wherein a fixed handle is provided on a frame body in a manner to face the operating handle in the blade piece extracting apparatus of the first aspect.

[0012]

According to the blade plate piece extracting device of the first aspect,
When the device is placed on the base plate by inserting the blade piece to be pulled out between the holding portions of the first and second holding bodies and operating the operating handle so as to push down , the cam is initially turned.
Part to be pulling the blades pieces sandwich the second holding member in pressed by the holding portions of the closing to both holding member by, clamping force is also Thereafter
In the state where there is no change, the locking pin is locked on the locking concave edge, and both the holding members are pulled up, and the blade plate piece is pulled out. Since the pull-out reaction force at this time is received by the base plate via the support leg, the blade plate piece can be reliably pulled out just above the through-slot hole without any skill by simply pressing down the operation handle.

According to the blade plate pulling-out device according to the second aspect, the device according to the first aspect is exhibited, and the device is placed on the base plate by the three supporting legs in a self-standing manner. Work easily and stably.

According to the blade plate pulling-out device according to the third aspect, the operation of the first aspect is achieved, and the first holding member moves up and down with respect to the frame via the guide roller, so that the operation is smooth. Work done to make work easier.

According to the blade plate piece extracting device of the fourth aspect, the operation of the first aspect is achieved, and both ends of the second holding body are supported by the main body of the first holding body. , The pivot portion of the second holding body is stable in strength, the blade plate to be pulled out is always firmly held, and when the operating handle is returned to the original position, the second holding body returns to the open position by the spring, The next blade plate stripping operation can be performed immediately.

According to a fifth aspect of the present invention, in addition to the function of the first aspect, the operating handle is operated by holding the operating handle with one hand and holding the fixed handle with the other hand. Therefore, there is no danger during operation, because the hand holding both handles is at a higher position than the cutting edge.

[0017]

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

FIG. 1 is a partially cutaway front view of an apparatus according to an embodiment of the present invention, and FIG. 2 is a perspective view of the apparatus viewed obliquely from below.

In the figure, reference numeral 1 denotes a frame. This frame 1
A pair of left and right side plates 1a, 1b
A support leg 2 extends downwardly at the lower end of both side plates, and another support leg 2 extends downward from the rear spacer 1c at an appropriate distance from the support leg 2. Is extended, and the device can be made independent by these three supporting legs 2.

Reference numeral 3 denotes a first member which is disposed inside the frame 1 so as to be movable up and down.
The first holding member 3 has a holding portion 3a extending downward on the front side of the main portion 3c and an operating portion 3c extending upward on the rear side of the main portion 3c. The operation unit 3c is made parallel, and a plurality of guide rollers 4 that are in contact with the outer surfaces of the holding unit 3a and the operation unit 3b and guide the first holding unit 3 to move up and down are attached to the frame 1. I have.

Reference numeral 5 denotes a second holding member which is crossed with the first holding member 3 and pivotally attached to the main body 3c of the first holding member 3.
The holding body 5 has a holding section 5a facing the holding section 3a of the first holding body 3 and an operation section 5b facing the operation section 3b of the first operating body 3. The main body 3c is formed in a rectangular cylindrical shape, and the second holding body 5 is inserted into the main body 3c to pivotally connect the first holding body 3 to the main body 3c.
Are made to penetrate and support both ends of the rectangular cylindrical main body. Further, a spring 7 for urging the second holding member 5 in the opening direction is disposed between the operating portions 3b, 5b of the both holding members 3, 5.

Reference numeral 8 denotes an operating member which is connected to the upper end of the operating portion 5b of the second holding member 5 and is pivotally mounted on the frame 1, having an operating handle 9 projecting forward from the frame. It operated actuating member 8 intended to integrally move up and down the closing and the second holding member 5 of the second holding member 5 together with the first holding member 3 rotates a predetermined angle, the actuating member 8 and the upper end of the operating portion 5b are connected to the operating portion of the second holding body 5 around the operating member 8.
5b is provided with a guide groove 8a whose upper end is loosely fitted to guide the ascending and descending movement of the second holding member 5, and a cam portion 10 which cuts out the bottom of the guide groove and abuts on the outer surface of the operating portion 5b of the second holding member 5. And a guide groove 8a on the upper side of the cam portion 10 in contact with the cam portion 10.
Both walls are cut out to form a locking recess 12, and this locking recess 12 is formed.
The locking pin 11 that locks to the edge is placed on the operating portion 5b of the second holding body 5.
It protrudes from the end . The depth of the cut of the locking recess 12 reaches near the pivot 13 of the operating member 8, and a part thereof is
The lower engaging edge 12a and the upper engaging edge 12b have an appropriate width (height) so as to be substantially parallel to each other, and the lower engaging edge 12a is connected to the cam tip 10a. Approximately coincides with the radius line connecting the center of the axis.

Reference numeral 14 denotes a fixed handle protruding substantially horizontally toward the rear of the frame 1 in a direction opposite to the operation handle 9, and 15 denotes a frame.
1 is a stopper pin for restricting the vertical movement of the first holding body 3, which is attached to the outer surface of the operation portion 3b of the first holding body 3, and which is a spacer 1c or a guide roller constituting the frame 1.
4 and so on.

In the above configuration, as shown in FIGS. 1 and 2, the state in which the operation handle 9 is rotated upward and the operation handle 9 is positioned at the upper end point is defined as a normal position.
In this normal position, the tip 10a of the cam portion of the operating member 8 is located at a position lower than the pivot 13, the first and second holding members 3, 5 are lowered, and the second holding member 5 is It is open under urging.

Next, with reference to FIGS. 3, 4 and 5, the procedure for extracting the blade plate piece A from the base plate B by the apparatus of the present invention will be described.

The blade piece A to be extracted is inserted between the holding portions 3a, 5a of the first and second holding members 3, 5, and the supporting leg 2 is placed on the base plate B.
Stand the device through. Here, the three supporting legs 2 are inserted into the gaps between the blade plate pieces A planted on the base plate B, and the apparatus is erected upright. (See FIG. 3) When the operation handle 9 is held down with one hand and the fixed handle 14 is held down with the other hand, and the operation handle 9 is pushed down, the operating member 8 rotates and the cam tip 10a is moved. Come up and the second holding body 5
Of the operating portion 5b of the second holding member
5 closes. The pressing force of the cam tip 10a gradually increases, and the blade plate piece A to be pulled out is held between the two holding portions 3a and 5a. Eventually, the tip portion 10a of the cam portion becomes the pivot 1 of the operating member 8.
3 When it comes up to the horizontal line passing through the center, the closing movement of the second holding body 5 stops, and at the same time, the second holding body 5
The locking pin 11 protruding from the upper end of the operating portion 5b is locked so as to be placed on the lower locking edge 12a of the locking recess 12. (See FIG. 4) By the rotation of the operating member 8 thereafter, the lower end of the cam portion 10a, the lower circular arc cam surface 10b, that is, the guide groove bottom surface becomes the second holding member.
5 is held in contact with the outer surface of the operating portion 5b to maintain the closing force of the second holding member 5, and the locking pin 11 locked to the lower locking edge 12a of the locking recess 12 is displaced as it is. The second holding member 5 is pulled up integrally with the first holding member 3 and the blade piece A to be pulled out is pulled out from the base plate B. (Refer to FIG. 5.) After the blade plate A to be pulled out is pulled out, if the operation handle 9 is rotated upward and returned to the normal position by changing the position, the second holding member is reversed in the above-described operation order. 5 is opened to open the withdrawn blade plate piece A, and the upper engaging edge 12b of the locking recess 12 is pressed downward by the locking pin 11 so that the first and second holding members are pressed. 3,
5 moves down and the next blade plate piece can be pulled out.

[0027]

According to the present invention having the above structure, the apparatus is set up on the base plate by inserting the blade plate to be pulled between the holding portions of the first and second holding bodies, and the operating handle is provided. Is operated, the second holding member closes and holds the to-be-extracted blade plate, and the first and second holding members are pulled up and the blade plate is pulled out just above the through-hole. Regardless of the size of the blade plate and the magnitude of the planting friction against the base plate, any blade plate can be reliably and easily pulled out. In addition, the operation of the operation handle is transmitted as a kind of a booster to the holding portion of the blade plate piece to be pulled out, so that anyone can use the operation without skill. Further, since the operation of the operation handle is performed at a high position away from the cutting edge, the operation can be performed safely and efficiently without the danger that the hand touches the cutting edge.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of an apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view of the device as viewed obliquely from below.

FIG. 3 is an explanatory diagram of a procedure for extracting a blade plate piece to be extracted.

FIG. 4 is an explanatory view of a procedure for extracting a blade plate piece to be extracted.

FIG. 5 is an explanatory diagram of a procedure for extracting a blade plate to be extracted.

[Explanation of symbols]

 1 ... frame 1a ... side plate 1b ... side plate 1c ... spacer 2 ... support leg 3 ... first holding body 3a ... holding part 3b ... operating part 3c ... main body part 4 ... guide roller 5 ... second holding body 5a ... holding part 5b Operating section 6 Axis 7 Spring 8 Operating member 8a Guide groove 9 Operating handle 10 Cam 11 Lock pin 12 Lock recess 15 Fixed handle

Claims (5)

(57) [Claims] 1. A frame body having a support leg extending downward, and a movable body disposed in the frame body so as to be movable up and down, a holding portion extending downward at a front side of the main body portion, and separated from the holding portion to a rear side of the main body portion. A first holding body having an operation portion extending upwardly, and a holding portion that is pivotally attached to a main body of the first holding body so as to cross the first holding body and face the holding portion of the first holding body. And a second holding body having an operating part facing the operating part of the first operating body, and a frame, linked to the operating part of the first holding body, being pivotally attached to the frame, and having an operating handle. An actuating member that pivots a predetermined angle to move the second sandwiching body closed and the second sandwiching body up and down together with the first sandwiching body, and moves the operating member around the operating member.
A guide groove is provided for guiding the vertical movement of the second holding body,
Cut the bottom of the guide groove to abut the operating part of the second holding body
A cam portion is formed, and the upper portion of the cam portion comes into contact with the cam portion.
Notch both sides of the groove to form a locking recess,
A locking pin for locking to the locking recess edge is provided at the upper end of the second holding body.
A blade plate stripping device characterized by being protruded . 2. The frame body has a pair of left and right side plates facing each other and a spacer sandwiched between the two side plates, and a support leg is provided at a lower end of each of the side plates. 2. The blade plate piece extracting device according to claim 1, wherein said three supporting legs are provided so that the device can be self-standing. 3. A plurality of guide rollers for making the holding portion of the first holding member parallel to the operation portion, and contacting the outer surface of the holding portion and the operating portion to guide the first holding member to move up and down. 2. The blade plate piece extracting device according to claim 1, wherein the device is attached to a frame. 4. A main body portion of a first holding body is formed in a rectangular cylindrical shape, and a second holding body is inserted through the rectangular cylindrical main body portion so that a pivot of the second holding body is connected to the rectangular cylindrical main body portion. 2. The blade plate piece extracting device according to claim 1, wherein a spring is provided between the operation portions of the first and second holding members, the spring being disposed between the operation portions of the first and second holding members. 5. The blade plate piece extracting device according to claim 1, wherein a fixed handle is provided on the frame body in a direction opposite to the operation handle.