JPH0336910Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a cutting device for making test pieces for testing paper quality, such as the tensile strength of paper.

[Prior art]

In order to examine the quality of paper, the basis weight, tensile strength (JIS P8113), elongation (JIS P8132), wet hand tensile strength (JIS P8135), bursting strength (JIS P8112, P8131),
Folding strength (JIS P8114, JIS P8115), tear strength (JIS P8116), stiffness (JIS P8143, P8125,
P8126), smoothness (JIS P8119), size (JIS
P8122), various tests such as printing aptitude are conducted. Approximately 10 test pieces are required for one test, and a considerable number of test pieces must be prepared in order to conduct each of the above tests.

Conventionally, test specimens were created by sampling a test sample from the roll paper 1 shown in Figure 3, and creating test specimens from this sample, such as tensile strength, elongation, wet tensile strength, and folding strength. The test piece for size is the 4th one.
As shown in the figure, the razor blade insertion slit 3,
3, . . . were created using gauges 4 provided at predetermined intervals. The production using Gauge 4 has high accuracy, but has the disadvantage that it is easy to cut and it is not possible to obtain a large number of sheets at once. As another method, as shown in FIGS. 5 and 6, a punch hole 6 is provided in the die 5, and a corresponding punch 7 is pushed into the punch hole 6 to create the test piece. ,in this case,
Accuracy is low and only 2 to 3 test pieces can be made at one time.
It is one piece. In addition, test pieces for basis weight, bursting strength, tensile strength, stiffness, smoothness, size, printing applicability, etc. are currently cut using a push-cut cutter, which takes a lot of time and effort. There was a problem that it took a while.

[Problem that the invention attempts to solve]

The present invention is an attempt to solve the problem that it takes time and effort to prepare a test piece and the problem that the accuracy is low.

[Means for solving problems]

In the present invention, a cutting blade for cutting an object to be cut by a first driving means and a blade receiver for placing an object to be cut are formed so as to be movable toward and away from each other, and a second driving means is provided inside surrounded by the cutting blade. A presser member is provided which is formed to be able to freely come into contact with and separate from the blade receiver, and the presser member is formed so as to contact the object to be cut before the cutting blade and to separate from the object to be cut later than the cutting blade, A scrap receiver that moves together with the cutting blade is provided on the outside of the cutting blade, and a scrap pusher that can move toward and away from the scrap receiver by a third driving means is provided on the blade receiver side, and the scrap pusher is moved by the presser member. By forming the scrap receiver to move together with the scrap receiver before separating from the object to be cut, the object to be cut is first placed and fixed on the scrap receiver by the presser member, and in this state, the object to be cut is held by the cutting blade. The cutting blade is separated from the blade receiver while the test piece produced by cutting is placed and fixed by the holding member, and the scrap pusher is moved together with the scrap receiver to separate the scrap from the test piece. After this, the holding member is moved away from the blade rest so that the test piece remains on the blade rest.

[Example of idea]

Hereinafter, the present invention will be explained in detail based on the embodiments shown in the drawings. FIG. 1 is a partially sectional front view of a cutting device according to the present invention. In the figure, reference numeral 8 denotes a lower frame body, and an upper frame body 10 is provided on a horizontal frame 9 on the upper surface side of the lower frame body 8. The upper frame body 10 has vertical columns 11, 11
is slidably passed through the upper horizontal frame 9 of the lower frame body 8, and is vertically movable by a first drive means 12 consisting of an electric cylinder. One or more cutting blades 14 according to the shape of the test piece are attached to the lower surface of the upper horizontal frame 13 of the upper frame body 10, while the upper horizontal frame 9 of the lower frame body 8 is attached to the upper surface of the upper horizontal frame 13. A blade receiver 15, which is larger than the cutting blade 14, is provided opposite the cutting blade 14. That is, the cutting blade 14 and the blade receiver 15 are formed so as to be able to move toward and away from each other by the first driving means 12.

On the inside surrounded by the cutting blades 14, a pressing member 16 is provided inside each of one to a plurality of cutting blades provided therein. The presser member 16 is for fixing the object to be cut 17 placed on the blade receiver 15 so that it will not shift during cutting, and has one to a plurality of cutting members appropriately provided depending on the number of presser members. It is formed so that it can freely approach and separate from the blade receiver 15 by two driving means 18.

On the outside of the cutting blade 14, scrap receivers 19, 19 are provided protruding from the lower surface of the upper horizontal frame 13 of the upper frame body 10 so as to move together with the cutting blade 14. On the other hand, on the blade receiver 15 side, that is, on the upper surface of the horizontal frame 9 on the upper surface side of the lower frame body 8,
9 and opposite scrap presses 20, 20 are provided. The scrap presses 20, 20 are formed so that their upper surfaces are flush with the upper surface of the blade receiver 15,
With this position as the lower limit, the scrap receivers 19, 19 are movable toward and away from the scrap receivers 19, 19 by third drive means 21, 21. In addition, although each driving means has been described above as an electric cylinder, it goes without saying that it may be replaced with a pneumatic cylinder, a hydraulic cylinder, or the like.

Next, the operating order of the cutting blade 14, presser member 16, and scrap pusher 20 is controlled by a separate control device (not shown).
This operation sequence will be explained based on FIG. 2. First, the cutting blade 14 and the holding member 1
6 move in the direction (downward) approaching the blade receiver 15, but the presser member 16 comes into contact with the object to be cut 17 before the cutting blade 14, and then the cutting blade 14 contacts the object to be cut 17. The object to be cut 17 is cut. Further, as the cutting blade 14 moves in a direction away from the blade receiver 15 (upward), the scrap pusher 20 moves upward together with the scrap receiver 19,
Next, the holding member 16 moves upward, and the cutting blade 14
When the blade reaches the upper limit position, the test piece remaining on the blade receiver 15 is taken out. Thereafter, the scrap pusher 20 is moved downward to take out the scraps.
As shown in FIG. 2, when moving the presser member 16 upward from the lower limit position, a vibration means (not shown) is separately provided.
By vibrating at a position slightly separated from the object to be cut 17, the test piece and the scrap can be separated easily and reliably.

Next, the operation will be described. First, the object to be cut 17 is placed and fixed on the blade receiver 15 by the presser member 16, and in this state, the object to be cut 17 is cut by the cutting blade 14. The cutting blade 14 is separated from the blade rest 15 while the test piece thus prepared is fixed on the blade rest 15 by the holding member 16,
Furthermore, the scrap pusher 20 moves together with the scrap receiver 19 to separate the scrap from the test piece. Thereafter, the holding member 16 is separated and the test piece remains on the blade receiver 15. If the test piece is taken out in this state and then the scrap pusher 20 is moved downward to take out the scrap, the initial state is restored.

[Effect of idea]

According to the present invention, the object to be cut is placed and fixed on the blade receiver by the holding member, and the object is cut by the cutting blade, and then the cutting blade is moved away from the blade receiver first, and the scrap is tested. The specimen is separated from the specimen, and then the holding member is moved away from the blade holder so that the specimen remains on the blade holder.
Compared to the conventional method, a considerable number of test pieces can be created easily and with high precision.

It should be noted that the device of the present invention can of course be used not only for making paper quality test pieces, but also for making test pieces for other materials such as plastic sheets, metal foil sheets, etc. Plastic sheets such as oxymethylene, polyvinyl chloride, polyvinylidene fluoride, polyethylene terephthalate, polyamides, polyimides, other polymers and copolymers of these polymers and other polymers, iron, stainless steel,
Metal foil sheets of copper, aluminum, etc. can be used as appropriate.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a part of the cutting device according to the present invention in cross section, FIG. 2 is a diagram showing the order of operation, FIG. 3 is a perspective view of a roll paper, and FIGS. 4 and 5 6 are a plan view and a side view showing different conventional examples, respectively, and FIG. 6 is a plan view of the die shown in FIG. 5. 12...first driving means, 14...cutting blade, 15
...blade receiver, 16...pressing member, 17...material to be cut, 19...scrap receiver, 20...scrap pusher, 21...third drive means.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A cutting blade for cutting the object to be cut and a blade receiver for placing the object to be cut are formed so as to be movable toward and away from each other by a first driving means, and an inner side surrounded by the cutting blade is formed. A presser member formed to be able to move toward and away from the blade receiver by a second driving means is provided, and the presser member contacts the object to be cut before the cutting blade and separates from the object to be cut later than the cutting blade. A scrap receiver is provided on the outside of the cutting blade and moves integrally with the cutting blade, and a scrap pusher is provided on the blade receiver side that can move toward and away from the scrap receiver by a third driving means. A sheet test piece cutting device, characterized in that the pusher is configured to move together with the scrap receiver prior to the separation of the presser member from the object to be cut. (2) The sheet test piece cutting device according to claim 1 of the utility model registration claim, wherein the cutting blade is composed of one or more cutting blades depending on the shape of the test piece. .