TW201601987A - Winding core support device - Google Patents

Abstract

A winding core support device comprises an annular ring that is rotatably fit over an outer circumference of a collar body over which a hollow winding core is externally fit. The ring is provided with rotors that are driven by the rotation of the collar body to move in a radial direction of the collar body so as to press and support an inside surface of the winding core for engagement, and is structured such that a pressing engagement mechanism is provided on an outer circumference of the ring for generating a kinetic energy on the inside surface of the winding core and press a pressing body. The pressing body may, when located at a projecting position, constrain relative rotation between the collar body and the ring and, and when at a retracted position, allow for the relative rotation between the collar body and the ring. This invention can prevent the annular ring from undesirably rotating and also prevent the rotors from flying away in case that no winding core is externally fit over the winding core support device and no winding core is used.

Description

Core support device

The present invention relates to a core supporting device which is mainly used for cutting a long strip-shaped sheet such as paper, cloth, synthetic resin film or gold tree foil into an arbitrary width, and then winding Winding device or unwind device.

According to the prior art, if a sheet is to be wound into a hollow core such as a paper tube, a core supporting device is used, as disclosed in Japanese Patent Laid-Open No. 2011-73870, the patent-known The core support device 100, which is constructed as shown in the ninth to eleventh drawings, has a collar body 103 that can be externally inserted into the driveable rotation of the rotary drive shaft 102; and is formed on the periphery of the collar body 103 And means for rotating the externally wound core A drive collar body 103.

The means for rotating the core A drive collar body 103 is constructed by: a ring-shaped ring 107 that is relatively rotatably fitted to the outer periphery of the collar body 103; and a ring-shaped ring 107 The collar body 103 is relatively rotatable and protrudes in the radial direction of the collar body 103 to press against the rotor 108 supporting the inner surface of the core.

The configuration of the rotor 108 is projected in the radial direction of the collar body 103 as described below. That is, on the outer width of the collar body 103 An annular groove 105 is disposed at the central portion, and a plurality of recessed portions 106 having a bottom surface having an inclined surface at a desired interval in the circumferential direction and allowing one end side to become shallow are transmitted through the partition wall portion 106a. Formed. A magnet 114 for adsorbing the rotating body 108 is disposed on the shallower side wall portion 106a of the bottom surface.

Further, the rotating body 110 using the pressing means of the elastic means is provided so as to be freely extractable and retractable from the outer peripheral surface of the annular ring 107.

If the core A of the paper tube or the like is externally inserted and the winding sheet is wound on the outer side of the conventional core supporting device 100, first, since the rotating body 108 will be located at the deep position b of the depressed portion 106, the shaft is supported by the long groove 113 and It is impossible to protrude radially from the collar body 103, so the core A can be easily inserted. The rotating body 110 can be retracted by the pressing force generated by the external action of the winding core A against the elastic force.

Further, when the winding core A stops the end of the sheet (not shown) and rotates the collar body 103 together with the rotary drive shaft 102, the winding core A and the rotating body 108 coupled thereto or by the rotating body The friction of 110 does not cause the annular ring 107 to rotate and only the collar body 103 is rotated, the rotating body 108 moves along the long groove 113 to the shallower position a and the partial rotating body 108 protrudes from the periphery of the collar body 103. . The protruding rotating body 108 is strongly pressed against the inner surface of the winding core A, and the winding core A and the annular ring 107 rotate together with the collar body 103 to wind the sheet.

According to the above-mentioned Japanese Patent Laid-Open No. 2011-73870, a plurality of core supporting devices 100 are generally mounted on the rotary drive shaft 102 in sequence, and a plurality of winding cores A are externally inserted into the plurality of core supporting devices 100. However, the core A is not limited to being extrapolated beyond the entire length of the rotary drive shaft 102 (all The core support device 100) sometimes also prevents the core A from being externally inserted into the core support device.

The structure of the core supporting device 100 is such that the rotating body 108 is sucked by the magnet 114, and the rotating body 108 is inadvertently rotated to the shallower position a side to rotate the recessed portion 106, and in a shallow position, one of the paths can be prevented Prominent. That is, by fixing the rotor 108 to the shallower position b of the recess 106, the relative rotation of the collar body 103 and the annular ring 107 can be restricted.

However, the rotary drive shaft 102 generates vibration at high speed rotation. The suction force of the rotating body 108 adsorbed by the magnet 114 is weak to the rotational driving shaft 102, and the rotating body 108 is separated from the magnet 114 by the vibration of the rotating drive shaft 102. As a result, in the core supporting device 100 which does not insert the winding core A and is not used, since the annular ring 107 is allowed to inadvertently rotate by vibration, the rotating body 108 is recessed with the annular ring 107. The portion 106 moves toward the shallower side, thereby allowing the rotating body 108 to fly out.

As a result, when the winding core A from which the sheet winding has been completed is to be extracted from the rotary drive shaft 102, the rotating body 108 from which the unused core supporting device is flying out is hindered, and the winding core A is not easily extracted. . Therefore, at present, the user will rotate the annular ring 107 and return the rotating body 108 to the shallower position b of the recess 106 to be adsorbed to the magnet 114.

Therefore, the inventor of the present invention has further developed and improved, in order to prevent the annular ring from inadvertently rotating and preventing the rotating body from being engaged in the core supporting device which does not use the winding core and does not use the winding core. Fly out.

The main object of the present invention is to provide a core supporting device which is attached to a peripheral portion of a collar body in which a hollow core is externally inserted, and an annular ring is rotatably inserted into the ring. Provided by the rotation of the collar body to the radial movement of the collar body, pressing the rotatable body supporting the inner surface of the core; the feature is provided at the outer periphery of the ring The inner surface of the core generates a kinetic energy and presses the pressing mechanism of the pressing body. The pressing body structure can limit the relative rotation of the collar body and the ring in the protruding position, and the collar body and the ring are allowed in the retracted position. The relative rotation of the ring; thereby preventing the snap-in rotating body, which is mounted on the rotary drive shaft but not using the core support device, inadvertently flying out, and the core can be easily and quickly extracted from the rotary drive shaft .

A secondary object of the present invention is to provide a core supporting device in which a ring-shaped groove is disposed at a central portion in the width direction of a peripheral portion of the collar body, and the ring is formed in the ring core supporting device. In the groove, a plurality of recessed portions having a bottom surface having an inclined surface and a one end side of the circumferential direction being shallower are formed at a desired interval in the circumferential direction through a wall portion, and a corresponding portion is formed on a side wall of the recessed portion. a long groove is formed on the slope of the inclined bottom surface of the depressed portion; the ring is rotatably embedded in the annular groove, and the ring can be moved along the inclined bottom surface of the concave portion, and the bottom surface is In a shallow position, it can be engaged to a core which is externally inserted by projecting one of the portions and restraining the core, and the rotatable engaging rotating shaft is supported by the side wall having the recessed portion a long groove of the slope; a deep guiding groove to the long groove is provided at a deep bottom of the concave portion of the long groove The engaging portion provided at both end portions of the pressing body is slidably fitted into the guiding groove portion.

[Part of the invention]

1‧‧‧core support device

13‧‧‧Long ditch

2‧‧‧Rotary drive shaft

2a‧‧‧Axis hole

20‧‧‧Crimping mechanism

21‧‧‧Crimp body

21a‧‧‧Contact surface

21b‧‧‧ sloped surface

21c‧‧‧Care Department

22‧‧‧ Spring

25‧‧‧Clamping protrusion

26‧‧‧Carring bolts

3‧‧‧ collar body

3a‧‧‧ peripheral surface

31‧‧‧ Guide groove

32‧‧‧First groove

33‧‧‧Second groove

4‧‧‧ bearing

41‧‧‧Outside

42‧‧‧ Inner wheel

5‧‧‧ annular groove

6‧‧‧Depression

6b‧‧‧Block section

6a‧‧‧Wall

7‧‧‧ ring

7a‧‧‧ recess

7b‧‧‧ outside the ring

8‧‧‧Rotating body

8a‧‧‧Axis

b‧‧‧Deep bottom position

A‧‧‧ shallower position on the underside

A‧‧‧core

S‧‧‧Sheet

[a part of the knowledge]

100‧‧‧core support device

102‧‧‧Rotary drive shaft

103‧‧‧ collar body

A‧‧‧core

107‧‧‧ ring

108‧‧‧Rotating body

105‧‧‧ annular groove

106‧‧‧Depression

106a‧‧‧Wall

114‧‧‧ magnet

110‧‧‧Rotating body

b‧‧‧Deeper position

113‧‧‧Long ditch

A‧‧‧ shallower position

The first figure is a perspective view of the core support device of the present invention.

The second figure is a partial cross-sectional view of the side of the core support device of the present invention.

The third figure is a cross-sectional view of the P-P in the second figure in the state in which a plurality of core supporting devices are disposed on a rotary drive shaft in the present invention.

The fourth figure is a side view of the collar body of the present invention.

Figure 5 (a) is a plan view of a key portion of the core supporting device of the present invention; and (b) is a front sectional view.

The sixth drawing is a key part of the core supporting device of the present invention, and includes a partial cross-sectional side view showing a state in which the relative rotation of the collar body and the ring is prevented.

Fig. 7(a) is a plan view showing the essential part of the core supporting device of the present invention, and (b) is a sectional view.

The eighth figure is a key part of the core supporting device of the present invention, and includes a partial cross-sectional side view showing a state in which the collar body and the ring are relatively rotated.

The ninth figure is a perspective view of a conventional core support device.

Figure 11 is a partial cross-sectional view showing the side of a conventional core support device.

Figure 11 is a cross-sectional view showing the state in which the conventional core support device is disposed on the rotary drive shaft.

The structural features and other functions and objects of the present invention will be described in detail below with reference to the accompanying drawings. FIG.

1 is a perspective view of a core support device of the present invention, and FIG. 2 is a partial cross-sectional view of a side of a core support device of the present invention, and FIG. 3 is a cross-sectional view of a state in which a plurality of core support devices are disposed on a rotary drive shaft of the present invention. Figure.

As shown in the figure, the core supporting device 1 is attached to the periphery of the rotary drive shaft 2 of a winding device for winding a sheet such as paper, cloth, synthetic resin film or gold tree foil, and is inserted through the bearing 4 to be mounted. Device. The core supporting device 1 is provided with a pair of right and left collar bodies 3 located on the right and left sides of the body.

The collar main body 3 is fitted and fixed to each other, and an annular groove 5 is formed at the outer periphery in the center in the width direction. An annular ring 7 is fitted into the annular groove 5 to allow the ring 7 and the collar body 3 to be rotatable relative to each other. There is no gap between the annular groove 5 and the two sides of the ring 7 and the peripheral surface of the ring has no difference with the outer surface of the collar body and is formed in the same plane. Moreover, the side surface of the annular groove of the collar body 3, in the circumferential direction as shown in the second and fourth figures, is shallow at one end and sequentially has a plurality of depressions having a sloped bottom surface at the other end. The portion 6 is disposed in the circumferential direction of the collar body 3. In the present embodiment, three recessed portions 6 are provided as an example.

A partition wall portion 6a is provided between each of the recessed portions 6. Regarding the required interval position in the circumferential direction of each of the recessed portions 6 in the ring 7, it is assumed to be one. The rotating body 8 of the engaging and rotating body is detachably disposed in the diameter direction of the ring 7. The rotor 8 is located at a deep position (standby position) b of the bottom surface of the recessed portion 6 and protrudes from the collar body 3 in the radial direction or slightly protrudes. Further, the rotor 8 is partially protruded in the radial direction of the collar body 3 at a shallow position a on the bottom surface of the recessed portion 6.

The two side walls of the recessed portion 6 have a steep slope which can correspond to the inclination pitch of the bottom surface of the recessed portion, and are provided with the long groove 13. A shaft 8a is protruded from both sides of the rotating body 8, and the rotating body 8 is fixed by the shaft 8a of the both sides being supported by the long groove 13, so that the rotating body 8 can be moved along the recessed portion 6.

The fourth figure is a side view of the collar body, the fifth figure (a) is the key part plan view of the core supporting device, the fifth figure (b) is the front sectional view, and the sixth figure is the key part of the core supporting device, wherein A partial cross-sectional side view showing a state in which the collar body and the ring are prevented from rotating relative to each other, wherein the seventh figure (a) is a plan view of the key portion of the core supporting device, the seventh figure (b) is a sectional view, and the eighth figure is a volume. The key portion of the core support device includes a partial cross-sectional side view that allows the collar body and the ring to rotate relative to each other.

As shown in the drawings, a plurality of crimping mechanisms 20 are provided at a peripheral portion of the loop 7 at a predetermined interval. The pressure bonding mechanism 20 is provided with a crimping body 21 housed in a recess 7a formed in the ring ring 7 so as to be able to enter and exit from the ring diameter direction, and a power means for generating a kinetic energy in the protruding direction of the crimping body 21. Spring 22.

The two ends of the engaging protrusion 25 are protruded from the crimping body 21, and the engaging protrusion 25 is fastened by the fixing bolt 26 of the outer peripheral surface of the ring 7. Limit moving in the direction of the protrusion. Therefore, the crimping body 21 can protrude in a protruding position of a predetermined size only from the outer peripheral surface 7b of the loop; and can be retracted to a position which is slightly in the same plane as the outer peripheral surface 7b of the loop.

The front end surface of the crimping body 21 is pressed against the convex contact surface 21a of the inner surface of the winding core A. That is, the contact surface 21a of the crimping body 21 forms a curved surface in the second figure, and the radius of curvature (outer diameter) of the curved surface is set to the radius of curvature (inner diameter) of the inner surface of the winding core A. Slightly the same. Further, the radius of curvature of the contact surface 21a can be arbitrarily set.

Further, in the third figure, the contact surface 21a is a straight line. Further, the crimping body 21 has an inclined surface 21b extending from both ends of the contact surface 21a.

Further, the pressure-bonding body 21 is also provided with a stopper member that can freely restrict the relative rotation of the collar body 3 and the ring 7 as a lock. That is, a guide groove portion 31 is provided on the other side of the long groove 13 (the deep portion b of the bottom surface of the recess portion 6). The guiding groove portion 31 is: a first groove portion 32 extending continuously from the other of the long grooves 13 of the ring ring 7; and a second opening continuous to the first groove portion 32 and opening to the outer peripheral surface of the ring ring 7 The groove portion 33 is formed.

Further, an engaging portion 21c is formed to protrude from both end portions of the crimping body 21, and each engaging portion 21c is slidably fitted into the guiding groove portion 31. A stopper portion 6b is provided at an edge portion of the edge of the guide groove portion 31.

In the protruding position of the crimping body 21, the engaging portion 21c of the crimping body 21 is brought into engagement with the stopper portion 6b and the ring is restricted from rotating. Thereby, the rotating body 8 cannot move and maintain the standby position.

Further, when the press-pressed body 21 is formed in the retracted position, the engaging portion 21c of the crimping body 21 is slid and guided by the groove portion 31, and is retracted. The engaging portion 21c of the crimping body 21 can be separated from the stopper portion 6b. Therefore, the loop can be allowed to rotate.

A bearing 4 is disposed on both sides of the inner circumference of the collar body 3. The outer wheel 41 of the bearing 4 is formed in the same plane as the end surface of the collar body 3, but the end portion of the inner ring 42 protrudes more than the end surface of the collar body 3.

The embodiment of the core supporting device 1 of the present invention is formed by the above-described configuration. Hereinafter, a description will be given of a case where the core supporting device 1 is used and the sheet S is wound around the winding core A of a paper tube or the like.

The core supporting device 1 is a reel structure in a winding device, and as shown in the third figure, a plurality of pins are externally inserted in the axial direction of the rotary drive shaft 2. At this time, the inner rings 42 of the bearings 4 of the core supporting device 1 adjacent to each other are brought into contact with each other. Thereby, a predetermined gap can be generated between the positioning of the adjacent core supporting device 1 and the core supporting device 1, thereby preventing interference between the core supporting devices.

Next, a description will be given of the case where the core A is externally inserted and inserted into the outer side of the core supporting device 1 of the rotary drive shaft 2. First, the rotating body 8 is located at a deep position b in the recessed portion 6 (please refer to the second figure) and because the shaft is supported to the long groove 13 of the inner side wall of the recessed portion and does not protrude from the collar body 3 to the outer diameter, or only slightly protrudes, Therefore, it can be easily inserted into the core A.

At this time, the crimping body 21 of the crimping mechanism 20 is elastically retracted against the elastic means by the crimping force generated by the insertion of the core A, and can be inserted and slid with the winding core A. Easy core insertion. Further, the engagement with the engaging portion 21c can be released by the crimping body 21 retracting the stopper portion 6b. Thereby, the relative rotation of the collar body 3 and the ring 7 can be allowed.

Further, after the winding core A fixes the end of the sheet S, the pressure-controlled gas can be supplied to the shaft hole 2a of the rotary drive shaft 2 and push the piston radially (not shown) so that the piston can slide sideways. The inner circumference of the collar body 3 drives a torque to rotate the collar body 3 with a predetermined torque. That is to say, if the winding core A fixes the end of the sheet S and rotates the collar body 3 together with the rotary drive shaft 2, the frictional impedance of the winding core A and the crimping body 21 engaged therewith can be prevented. The ring 7 rotates and only the collar body 3 is rotated.

By the relative rotation of the collar body 3 and the ring 7, the rotating body 8 can be moved along the bottom surface of the recess and the long groove 13 of the inner side wall of the recess to the shallower position b side, as shown by the virtual line of the second figure. It is shown that a part of the rotating body 8 can protrude radially from the outer peripheral surface 3a of the collar body and be strongly pressed to the inner surface of the winding core A. The rotating body 8 is frictionally engaged with the inner surface of the winding core to drive the rotation of the collar body 3 to the externally wound core A. Thereafter, the winding core A will rotate together with the collar 7 and the collar body 3 and perform Winding.

Further, if the collar body 3 is reversed, the rotor 8 is moved to the deeper position b of the inclined bottom surface and is sunk from the outer periphery of the collar body 3 and the ring 7, so that the core can be easily extracted.

Although the conventional core A is supported by a plurality of core supporting devices 1, if the length of the core A is short (when the width of the sheet S is small), the core supporting device for supporting the core A is used. The number of 1 will also be reduced (sometimes there will be 1 core support device 1).

That is to say, there are cases where the core supporting device 1 without the outer winding core A is present. On the contrary, there is no external winding core A in the core supporting device 1 When the core supporting device 1 holds the blocking portion 6b of the collar body 3 and the engaging portion 21c of the crimping body 21 in an engaging relationship, the collar body 3 and the loop can be maintained. 7 relative rotation. As a result, it is possible to prevent the rotating body 8 from being protruded by the relative rotation of the collar body 3 and the ring 7. Therefore, the unused core supporting device 1, as shown in the third figure, prevents the ring 7 from rotating without causing the rotating body 8 to inadvertently protrude even if vibration is generated. As a result, when the core A is to be taken out, the rotating body 8 is hindered and the extraction is not hindered.

Therefore, it is possible to surely prevent the engaging rotating body (rotating body 8) of the core supporting device 1 which is not used although mounted on the rotary drive shaft 2 from inadvertently flying out.

In addition, when the rotating body 8 is fixed by a magnet, since the relative rotation of the collar body 3 and the ring 7 is restricted, a magnet having a large force is adsorbed, but the present invention is different from the prior art and does not need to be used for fixed rotation. The magnet of the body 8 can reduce the number of parts.

Further, when a conventional technique of a magnet having a large adsorption force is used, when the sheet S is wound, the rotational torque for forcibly separating the rotor 8 from the magnet is required to exist in the crimping mechanism 20 and the core. Between A, the sheet S having a small winding width is less suitable. In the present invention, since the rotor 8 is not forcibly separated from the magnet, the sheet S having a small width can be wound with a weak pulling force. In addition, since the magnet is not required, the cost can also be reduced.

The present invention is not limited to the foregoing embodiment. For example, in the above embodiment, the guide groove portion 31 (the first groove portion 32 and the second groove portion 33) is provided at the collar main body 3, but it may be at the core supporting device 1 Or set on the rotary drive shaft 2.

Further, in the above embodiment, the winding core supporting device 1 is described in the winding, but the winding shaft is the same. In order to be able to be wound up, the upper or lower winding, and the lowering line, the inclined bottom surface of the collar body 3 is formed to be deeper and deeper at the end portions, and corresponding to the bottom surface of the inclined surface and recessed. The long groove 13 on the inner side of the portion is inclined to a medium height to be close to the periphery of the center portion. According to this configuration, the reverse rotation of the bottom surface and the intermediate portion of the long groove can be performed, and the rotation shaft can be reversely driven, so that not only the winding but the upper thread is released, and even if the winding is performed, the lowering line can be easily handled.

In summary, according to the improvement of the core support device provided by the present invention, the application of the method is novel and practical, and can be prevented in the core support device which does not use the core and does not use the core. Let the ring-shaped ring inadvertently rotate and prevent the rotating body from flying out, so as to achieve the intended effect. To this end, apply for a patent according to law, and pray for a detailed examination and grant a patent.

1‧‧‧core support device

2‧‧‧Rotary drive shaft

20‧‧‧Crimping mechanism

21‧‧‧Crimp body

21a‧‧‧Contact surface

21c‧‧‧Care Department

25‧‧‧Clamping protrusion

26‧‧‧Carring bolts

3‧‧‧ collar body

31‧‧‧ Guide groove

4‧‧‧ bearing

41‧‧‧Outside

42‧‧‧ Inner wheel

5‧‧‧ annular groove

7‧‧‧ ring

8‧‧‧Rotating body

Claims (2)

A core supporting device is a peripheral portion of a collar body in which a hollow core is inserted, and a ring-shaped ring is rotatably inserted, and the ring body is provided by the ring body Rotatingly driving the radial movement of the collar body to press the rotatable body supporting the inner surface of the core; the feature is that the outer periphery of the ring is provided with a kinetic energy and pressure on the inner surface of the core Pressing the pressing mechanism of the pressing body, the pressing body structure can restrict the relative rotation of the collar body and the ring in the protruding position, and allow the relative rotation of the collar body and the ring in the retracted position. The core supporting device according to claim 1, wherein an annular groove is formed in a central portion in a width direction of a peripheral portion of the collar body, and a circumferential groove is required in the annular groove. a plurality of recesses having a bottom surface having an inclined surface through which a one end side of the circumferential direction becomes shallower, and a side wall having a sloped bottom surface corresponding to the recessed portion a long groove is disposed in the annular groove, and the ring ring is rotatably embedded in the annular groove, and the ring ring is movable along the inclined bottom surface of each of the concave portions, and is engageable at a shallow position on the bottom surface By arranging one of the portions to be radially outwardly inserted and confining the core, the rotatable snap-in rotating shaft is supported by a long groove having a slope of the side wall of the recess; in the long groove The guide groove portion continuous to the long groove is provided at a position deeper at the bottom surface of the recessed portion, and the engaging portion provided at both end portions of the pressing body is slidably fitted into the guide groove portion.