JPH0553888U - Slitter - Google Patents

Abstract

(57) [Summary] [Purpose] A long roll-shaped object such as a heat-meltable plastic sheet is rotated in its roll shape, and is cut into slices with an upper tip saw and a lower double-edged circular blade. The cut surface has a clean finish, and the operation of the support device is automated when loading the roll-shaped long object on the guide support rod to save labor. [Structure] A roll-shaped long object such as a heat-meltable plastic sheet is fixed to a horizontal guide support rod with a mechanical clutch via a rubber tube and rotated, and an upper tip saw and a lower double-edged circular blade are attached. It's cut into circles, and a roll tape with a clean cut surface is obtained. When a roll-shaped long object is loaded on the guide support rod, the support device on the free end side of the support rod can be automatically moved up and down by a single switch and fixed and released by a hook without manpower.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a slitter in which a roll-shaped long object is rotated and cut into slices by a cutting means, and in particular, a heat-meltable roll-shaped long object in which a film such as plastic or a non-woven fabric is tightly wound is sliced. About the slitter making tape.

[0002]

[Prior Art]

 Conventionally, as this type of slitter, there has been known one in which a roll-shaped long object is sliced by using a cutting means composed of a double-edged round blade having a pair of cutting edges separated in the thickness direction and a straight bite blade. (See, for example, the application documents of Japanese Utility Model Application No. 62-112379).

[0003]

[Problems to be solved by the device]

 In such a conventional slitter, two parallel cutting scoring lines are made by a double-edged round blade placed above the long object, and the straight cutting tool below the long object is used for scraping. ing. Since the guide support rod supporting the long object bends downward to the center due to the supporting load, the edge of the upper round blade cuts into the upper half of the compressed long object, resulting in a sharp edge. It was causing problems such as accelerating the decline and liable to cause cut edge welding. In addition, the straight bite always cuts a long object, so the sharpness of the cutting tool deteriorated quickly.

In addition, in order to load a roll-shaped long object into the guide support rod, it is necessary to tilt or raise the support column supporting the free end of the guide support rod, and one person needs to perform the work. was there. Also, since the loaded long object receives cutting force while rotating, it was necessary to perform stable fixing so that the fixed center would not be displaced during operation, and it was necessary to protect the guide support rod from the blade. ..

The present invention has been devised in view of the above, and reduces a load on a round blade with a double edge and obtains a clean cut surface without welding, and at the time of loading a roll-shaped long object. (EN) Provided is a slitter capable of saving labor, preventing damage to both the guide support rod and the blade, and securely fixing a roll-shaped long object without misalignment.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, a slitter according to the present invention comprises a roll-shaped elongated member supported by a horizontal guide supporting rod inserted into a hollow core thereof to be rotationally driven, and the guide supporting rod. The long object is cut into a circular slice shape by a cutting device that moves toward and away from the guide support rod in a direction orthogonal to the direction of the guide support rod and moves in the longitudinal direction of the guide support rod at every set width via the shift device. The cutting means is a double-edged round blade having a peripheral groove in the central portion of the outer peripheral surface and circumferentially provided with parallel pressing edges on both sides of the groove; It is composed of a tip saw that is driven to rotate in a state where the centers are aligned and that is slightly thinner than the edge interval of the round blade.In that configuration, the pressing edge of the round blade is lower than that of the long object. Make a notch from the side And the tip saw is placed on the upper side or the lateral side of the guide support rod so that the tip exerts a cutting action on the elongated object from the upper side or the lateral side. There is.

In addition, the slitter supports a long roll-shaped object by a horizontal guide support rod which is inserted into the hollow core of the slitter for rotational driving, and drives a driving means in a direction orthogonal to the guide support rod. The long object is cut into a sliced shape by a cutting means that moves toward and backwards through the guide supporting rod and moves in the longitudinal direction of the guide supporting rod by a set width for each set width. The one end of the guide support rod on the side through which the elongated member is inserted is supported by a support means, and in this configuration, the support means is vertically movable along a guide and the guide support is provided at the upper end. An up-and-down moving body having a seat for receiving one end of the rod, an actuator for vertically moving the up-and-down moving body, and an upper and lower receiving seat of the up-and-down moving body. A trigger with a hook that fits The lower end of the gar has an upper stopper that is vertically inserted to raise the hook to the engaging position and a lower stopper that tilts the hook backward to the disengaged position. And an elastic body supported by a retainer above the vertical moving body so as to elastically bias the lower stopper piece upward, and the operating rod near the top dead center of the vertical moving body. It consists of a stationary body that is engaged so as to stop the upward movement and allow the downward movement of the operating rod that follows the up-and-down moving body.The interval between the upper stopper piece and the lower stopper piece swings the trigger. The feature is that it is set according to the process.

Further, in the slitter of the present invention, a roll-shaped elongated member is supported by a horizontal guide support rod inserted into the hollow core thereof to be rotationally driven, and the roll-shaped elongated member is driven in a direction orthogonal to the guide support rod. The above long object is cut into a sliced shape by a cutting means that moves closer and backward through the drive means and moves through the shift means in the longitudinal direction of the guide support rod for each set width. In that structure, the guide support rod is formed by covering a leaf mechanical shaft that projects and retracts the clamp piece toward the outside of the surface of the support rod by the movement of the control rod at the center, and covers the elastically deformable tube. It is characterized by that.

[0009]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. 1 to 6, a film slitter 1 is a roll-shaped long object A made of a heat-welding film such as a nylon film, and a guide support bar G inserted into a hollow paper cylinder a of the core thereof. It is fixed by the mechanical chuck C and supported horizontally along the machine base 2 in the longitudinal direction via a supporting device 4. The guide support rod G is held in a cantilever state on the motor box B by a main shaft housing 21, and is rotationally driven by a reversible geared motor M1 via a transmission system 23. Therefore, the free end is provided with a bearing 24, via which the free end is held on the support device 30. The mechanical chuck C moves chuck leaves 25, which are spaced in the longitudinal direction of the support rod G and are capable of advancing and retracting in the radial direction by four at intervals of 90 ° in the circumferential direction, and these leaves 25. It is composed of a control rod 26 provided with a cam means and a jig cylinder 27 for moving the control rod 26 forward and backward in the longitudinal direction, so that there is no deviation of the core at the time of fixing as compared with the conventionally used air chuck. The mechanical shaft incorporating the mechanical chuck C is covered with a relatively thin rubber tube t to form a guide support rod G.

The cutting means 11 for cutting the roll-shaped long object A into slices while rotating it comprises a tip saw 13 on the upper side of the guide support bar G and a round blade 12 with a double edge on the lower side, and a motor box B It is mounted via a small table 5 on a large table 4 which is sequentially shifted by the cutting width along the longitudinal direction of the machine base 2 by rotation of a ball screw 3 of a shift means connected to a reversible motor M2 therein. A tip saw 13 is pivotally supported by an upper bracket 6a horizontally projecting on the support rod G side of a stand 6 standing on the small table 5 so as to be rotated by a motor M3. A round blade 12 is pivotally supported by a motor M4 on a lower bracket 6b protruding horizontally on the support rod G side.

The brackets 6a and 6b are attached to the stand 6 such that the vertical distance between them is relatively adjusted. The driving means 10 for moving the small table 5 toward and away from the support bar G is a motor M5 installed on the large table 4 and a bearing block 15 connected to the motor M5 and the bearing block 15 on the large table 4 in plan view. A ball screw 16 rotatably arranged in a direction orthogonal to the support bar G, a guide rail 17 arranged in parallel with the ball screw 16, and a ball screw 16 inserted into the guide rail 17 and screwed into the ball screw 16 to be mounted on the small table 5. It is composed of a block 18 fixed to the lower surface. Therefore, the small table 5 equipped with the cutting means 11 is moved back and forth toward and away from the support rod G by the forward and reverse rotations of the motor M5, and the inching shift of the large table 4 and the reciprocating motion of the small table 5 cause the wheel to move. Cutting work is performed.

The round blade 12 has a U-shaped (or V-shaped) peripheral groove 121 at the center of the outer peripheral surface thereof, and a pair of parallel pressing edges 122, 123 are spaced in the thickness direction. During operation, the lubricant / coolant such as water is appropriately supplied to the edge part. The circular blade 12 bends in a bow shape due to its weight. The edges 122 and 123 hit the lower half side of the elongated object A in the extended state, so that the blade can easily make a cut and does not cause welding on the cut surface. The tip saw 13 is formed by fixing the tips 131 and 132, which are slightly narrower than the interval between the edges 122 and 123 of the round blade 12, to the corrugated cuts on the outer periphery of the saw body 130 so that the tips of the tips are staggered. The tip of the blade 12 is set so that the cutting position becomes shallower by about 2 mm in the long object A. Therefore, the thickness of the protective tube t of the mechanical chuck C is set to 2.5 mm or more. The long blade A is set such that the circular blade 12 first pushes parallel lines and then the tip saw 13 cuts between them. The operating conditions of the support rod G, the round blade 12 and the saw 13 can be set to 150 rpm, 600 rpm and 3000 rpm, respectively. Cutting debris is optionally collected with suction air.

The support device 30 is provided on the opposite side of the machine base 2 from the motor box B, and moves up and down along the upper and lower guides 31, 31, and a vertically moving cylinder 32, and guides at the upper end thereof. A seat 33 that receives the bearing 24 at the free end of the support rod G, an actuator 34 of an air cylinder that drives the cylinder 32 up and down, a link system 35 that connects the operating rod 34a and the cylinder 32, and a receiving seat 33 that moves up and down. A trigger 36 having a hook 36a pivotally supported so as to be swingable and engageable with the bearing 24, and an upper end portion composed of a nut which is vertically inserted at a lower end portion thereof to erect the hook 36a to an engaging position. An operating rod 37 having a stopper 37a and a lower stopper 37b made of a collar for tilting the hook 36a back to the disengaged position and following the vertical moving cylinder 32, and the lower stopper 37b are raised. Person The coil spring 38 supported by the retainer 38a on the upper part of the vertical moving cylinder 32 so as to elastically bias the upper end of the vertical moving cylinder 32 and the lower end of the operating rod 37 near the top dead center of the moving upper end of the cylindrical body 32 are engaged and stopped. The upper stop piece 37a and the lower stop piece 37a are composed of a stationary body 39 that stops the upward movement to raise the hook 36a and allows the operation rod 37 to follow the downward movement of the tubular body 32. The interval of 37b is set corresponding to the swinging stroke of the trigger 36.

A means for holding the rod 34 a of the actuator 34 at the top dead center is provided even when the supply of the pressurized air to the actuator 34 is stopped, and the vertical support 41 fixed to the machine base 2 and the link system are provided. The first link 35a, the second link 35b, and the roller 35c provided around the articulating pins of the links 35a and 35b. That is, when the actuator 34 extends the rod 34a and reaches the top dead center, the first blade and the second links 35a and 35b are in the shape of V, and the second link 35b applies weight to the cylindrical body 32. Since it is received, it becomes vertical so as to be vertical, and the roller 35c is placed on the upper end surface of the support 41. With this, the downward load applied to the cylindrical body 32 is supported by the support 41. When the actuator 34 retracts the rod 34a and tries to start the downward movement of the cylindrical body 32, the first and second links 35a and 35b return to the V shape, and the roller 35c comes off from the upper end surface of the support 41. At this time, when the tubular body 32 starts to move downward, the trigger 36 also starts to move downward together with the receiving seat 33 via the pivot pin 36b, but the operating rod 37 is descending, but extends faster than the spline. The ring 36 is maintained at the top dead center via the lower stopper piece 37b to tilt the trigger 36 backward, and the hook 36a is removed from the bearing 24. After that, the operating rod 37 follows the downward movement of the tubular body 32 and is lowered while being elastically supported by the spring 38. Contrary to this, the hook 36a engages with the bearing 24 at the top dead center of the rod 34a of the actuator 34 because the operation rod 37 is stopped from moving upward by the stationary body 39 near the top dead center and the upper stop is stopped. The piece 37a stops the upward movement of the lower end portion of the trigger 36, and the trigger 36 stands up around the pivot pin 36b while moving upward slightly to the top dead center.

[0015]

[Effect of the device]

 As described above, according to the slitter of the present invention, the round edged blade with a double edge reduces the load received from a long object to facilitate the cutting, and the melting or welding of the cut surface accordingly occurs. In addition to being prevented, the automatic operation of the support means at the free end of the guide support rod can save labor when loading the roll-shaped long object. In addition, the mechanical shaft and elastic cover prevent misalignment due to the cutting force of the long object fixed to the guide support rod to obtain a clean cut surface and prevent damage to the tip saw and round blade.

[Brief description of drawings]

FIG. 1 is a perspective view of a preferred embodiment of a slitter of the present invention.

FIG. 2 is a front view of the embodiment.

FIG. 3 is an explanatory view seen from an arrow line III-III in FIG.

4 is a cross-sectional view taken along the line IV-IV in FIG.

FIG. 5 is an explanatory view of a supporting means (device) of the same embodiment.

FIG. 6 is an enlarged cutaway sectional view of an essential part of an arrow VI in FIG.

[Explanation of sign]

 1 Slitter 3 Shift Means 10 Driving Means 11 Cutting Means 12 Round Blades 121 Circumferential Grooves 122, 123 Edges 13 Tip Saw 25 Leafs 26 Control Rods 30 Support Means (Devices) 31 Guides 32 Vertical Moving Objects 33 Receiving Seats 34 Actuators 36 Triggers 36a Hooks 37 Operations Rod 37a Upper stopper piece 37b Lower stopper piece 38 Elastic body 38a Retainer 39 Stationary body A Long object a Core C Mechanical chuck (shaft) G Guide support rod t Tube

Claims (3)

[Scope of utility model registration request] 1. A roll-shaped long object is supported by a horizontal guide support rod inserted through a hollow core thereof to be rotationally driven, and is approached in a direction orthogonal to the guide support rod through a drive means. .Cutting means for moving backwards and moving in the longitudinal direction of the guide support rod at every set width through a shift means to cut the long object in a circular slice shape. A circular blade with a double edge having a peripheral groove in its portion and surrounding parallel pressing edges on both sides of the groove, and is driven to rotate in a state where the circular blade and the center in the thickness direction are aligned with each other. In a slitter composed of a tip saw having a thickness slightly smaller than the edge interval of the blade, the round blade is arranged below the guide supporting rod so that the pressing edge of the circular saw cuts into the elongated object from below. The tip of the tip saw is A slitter, which is arranged on the upper side or the lateral side of the guide support rod so as to apply a cutting action to the elongated object from the upper side or the lateral side. 2. A roll-shaped long object is supported by a horizontal guide support rod inserted into a hollow core thereof to be rotationally driven, and is approached in a direction orthogonal to the guide support rod through a drive means. The cutting means that moves backward and moves in the longitudinal direction of the guide support rod at a set width for each set width through the shifting means to cut the long object in a sliced manner. In a slitter in which one end of the guide support rod on the side through which is inserted is supported by a support means, the support means is vertically movable along a guide and has a seat for receiving one end of the guide support rod at an upper end. A moving body, an actuator for driving the vertical moving body up and down, a trigger having a hook pivotably supported by a receiving seat at an upper end portion of the vertical moving body so as to be vertically swingable and engageable with one end of the guide rod, Inserted vertically in the lower end of the trigger An operating rod that has an upper stopper that raises the hook to the engagement position and a lower stopper that tilts the hook backward to the disengagement position and that follows the vertical moving body, and the lower stopper that is above the stopper. An elastic body supported by a retainer at the upper part of the vertical moving body so as to elastically urge the vertical movement of the operating rod near the top dead center of the vertical moving body and downward movement of the operating rod following the vertical moving body. And a stationary body engaged so as to allow the slitter, and the interval between the upper stopper piece and the lower stopper piece is set corresponding to the swinging stroke of the trigger. . 3. A roll-shaped long object is supported by a horizontal guide support rod inserted through the hollow core to be driven to rotate, and is approached in the direction orthogonal to the guide support rod through a drive means. -In the slitter that cuts the long object in a sliced shape by the cutting means that moves backward and moves in the longitudinal direction of the guide supporting rod at each set width through the shift means, the guide supporting rod has the center. A slitter characterized by being constructed by covering a leaf mechanical shaft that projects and retracts the leaf toward the outside of the support rod by moving the control rod of the section with an elastically deformable tube.