JPH0644925Y2 - Winding device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a winding device for directly winding a film, a thread or the like by a predetermined number of windings by a winding claw without providing a core, In particular, the present invention relates to a winding device that allows a wound product to be easily extracted from a winding claw.

[Conventional technology]

FIG. 6 shows a resin film, for example, a film F that is formed into a tubular shape and is crushed and wound into a predetermined number of turns without providing a core. Usually, in order to wind the film every predetermined number of windings in this way, the film is directly wound from a fixed amount of the original fabric with a nail or the like, and when the fixed number of windings is reached, the film is extracted from the nail. The same applies to the case of winding a fixed amount of yarn or wool.

[Problems to be Solved by the Invention] However, as shown in FIG. 6, when the film is wound without using a core, the film F is wound tightly with a constant tension on a claw for winding the film. Therefore, it is very difficult to pull out a certain amount of rolled material from the nail.

The present invention solves the above-described problems, and provides a winding device that allows a film or thread to be easily pulled out from a nail after being wound by a certain amount without using a core. Has an aim.

[Means for Solving the Problems]

In the winding device according to the present invention, a plurality of winding claws are protruded from a base that is rotationally driven by a motor, and the base ends of the winding claws are supported by the base so that the claw tips can move in a direction to close each other. Further, an extruding shaft is provided in the middle of each winding claw so as to be able to move forward and backward, and this extruding shaft moves in the closing direction of each winding claw when retracting in the proximal direction of the claw. Is provided with a restricting cam that prevents movement of the winding claws in the closing direction when advancing in the tip direction of the claws. A push-out member is provided for pulling out what is wound around the take-up claw from the claw.

[Action]

In the above means, when winding a film or the like, the base is rotated by a motor, and the film or the like is directly wound from the original fabric by a fixed amount without using a core. At this time, the push-out shaft is moving in the direction of the base end of the pawl, and the restriction cam regulates the tips of the take-up pawl so as not to close each other. A film or the like is tightly wound around the take-up claw by a constant tension, and when the amount becomes constant, the wound film is cut and separated from the original fabric. After that, the pushing shaft projects toward the tip of the claw. At this time, the regulation cam provided on the push-out shaft releases the regulation of the winding claws, and the winding claws can freely move in the direction of closing each other. As a result, the winding claw is released from the winding force of the film or the like. When the pushing shaft further advances, the pushing member provided on the shaft pushes the film or the like toward the tip of the nail. As described above, since the film or the like has already been loosened with respect to the winding claw, the film pushed by the pushing member can be easily extracted from the winding claw.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a plan view of a half section showing a first embodiment of a winding device according to the present invention, and FIG. 2 is an assembly explanatory view showing a mounting portion of a winding claw thereof.

In FIG. 1, reference numeral 1 is a chassis. A cylindrical housing 2 is fixed to the chassis 1 with screws. Ball bearings 3a and 3b are held in the housing 2, and the rotary holder 4 is rotatably supported by the ball bearings 3a and 3b. As shown in FIG. 2, the rotary holder 4 has a central portion 4a inserted into the ball bearings 3a and 3b, and a ring groove 4b for mounting a retaining ring is formed behind the central portion 4a. Further, a driven gear 5 is fixed to the rear end of the rotary holder 4. Reference numeral M is a motor. The motor M has a reduction gear box, a drive gear 6 is fixed to the shaft thereof, and the drive gear 6 meshes with the driven gear 5. The power of the motor M is transmitted from the drive gear 6 to the driven gear 5, and the rotation holder 4 is driven to rotate in the housing 2 together with the driven gear 5.

The inside of the rotary holder 4 has a circular hollow hole 4c, and sliding brackets 7 and 8 are fixed to the front end and the rear end of the rotary holder 4 by screws. Each bracket 7
Square holes 7a and 8a are bored in and 8 respectively.
An extrusion shaft 10 having a rectangular cross section is inserted into 7a and 8a. This extruding shaft 10 has the square hole 7a and
It is slidably inserted into 7b. Therefore, the push-out shaft 10 rotates together with the rotary holder 4, and the push-out shaft 10 can move back and forth in the rotary holder 4 in the axial direction.

The rear end portion 10a of the extrusion shaft 10 is processed into a cylindrical shape. The rear end 10a is rotatably supported by the bearing 12 in the drive bracket 11. A drive pin 13 is fixed to the bracket 11. A support member 15 is fixed to the back surface of the chassis 1, and a pivot link is rotatably supported by a shaft 17 at the end of the support member 15.
16 are provided. A long hole 16b is formed at the tip of one arm 16a of the rotary link 16, and the drive pin 13 of the drive bracket 11 is inserted into the long hole 16b. A drive link 19 is connected by a pin 18 to the tip of the other arm 16c of the rotary link 16. The drive link 19 is driven to move back and forth by the air cylinder 20. The rear end of the air cylinder 20 is supported by the support member 21.

As shown in FIG. 2, a recess is formed at the tip of the rotary holder 4.
4d is formed, and a combination of the lower base 31 and the upper base 32 can be inserted into the recess 4d. As shown in FIG. 2, the lower base 31 has a pair of female screw holes 31a, and the upper base 32 has a pair of screw insertion holes 32a. A fixing screw 33 is inserted into the screw insertion hole 32a and screwed into the female screw hole 31a so that the lower base 31 and the upper base 32 are fixed to each other. The lower base 31 has a concave sliding table 31b.
Is formed, and a pair of winding claws 35 are installed on the sliding table 31b. A support hole 35a is formed at the base of each winding claw 35. Also upper base 32
A pair of insertion holes 32b are formed in this. The pair of support pins 36 are inserted through the insertion holes 32b, and the support holes 3 of the winding claw 35 are
5a, further inserted into an insertion hole (not shown) formed in the lower base 31, and a split pin or the like is inserted into the support pin 36 on the lower surface of the lower base 31. The pair of winding claws 35 are rotatably supported by the support pins 36 on the upper surface of the sliding table 31b of the lower base 31.
However, the rotation of the pair of take-up claws 35 in the direction in which the claw tips 35b open from each other is restricted by both edges A of the sliding table 31b of the lower base 31. That is, the both edge portions A serve as stoppers, and the pair of winding claws 35 serve as support pins 36.
It is regulated so that it does not open in a V shape with the fulcrum as a fulcrum.

As shown in FIG. 2, the lower base 31 and the upper base 32 are superposed and fixed by the fixing screw 33, and the winding pin 35 is supported by the support pin 36, which is treated as a unit. The rotary holder 4 is inserted into the recess 4d at the tip. Then, a fixing screw 38 is inserted through a hole 4e formed in the lower surface of the concave portion 4d of the rotary holder 4, and this is screwed into a female screw hole 31c formed in the lower base 31. As a result, the unit in which the lower base 31, the upper base 32, and the winding claw 35 are integrated is fixed in the recess 4d at the tip of the rotary holder 4.

The push-out shaft 10 is inserted into the square hole 8a of the sliding bracket 8 and the square hole 7a of the sliding bracket 7, and projects forward of the rotary holder 4 to project into the square groove 31d on the upper surface of the lower base 31 and the lower surface of the upper base 32. Is inserted into the rectangular groove 32c. In the state of protruding from each of the square grooves 31d and 32c, the pushing shaft 10
A regulation cam 41 is fixed to the upper end of the front end of the and the pushing plate 42 is fixed to the front end face. Ie lower base 31 and upper base
A regulation cam 41 is installed on the upper surface of the extrusion shaft 10 that projects forward from 32, and a fixing screw is inserted into the insertion hole 41a of the regulation cam 41 and screwed into the female screw hole 10b of the extrusion shaft 10 to thereby regulate the regulation cam 41. Is fixed. A roller 44 is attached to each of the pair of winding claws 35, and
As shown in the figure, the regulation sides 41b on both sides of the regulation cam 41 are provided.
Has a positional relationship in which the roller contacts the roller 44. Further extruded plate
An insertion hole 42a is formed in 42, the fixing screw 43 inserted in the insertion hole 42a is screwed into the female screw hole 10c on the front end surface of the extrusion shaft 10, and the extrusion plate 42 is attached to the distal end surface of the extrusion shaft 10. Fixed to. A pair of slits 42b are formed in the push-out plate 42, and the tip 35b of the winding claw 35 is inserted into the slit 42b.

Next, the operation will be described.

When the winding operation is performed, the air cylinder 20 shown in FIG. 1 is extended and the rotation link 16 is rotated clockwise. The push-out shaft 10 is pulled upward by the arm 16a of the rotary link 16 in FIG. Is retreating to. As a result, as shown in FIG. 3A, the regulation sides 41b on both sides of the regulation cam 41 are located inside the roller 44, and the rotation of the winding claws 35 in the direction of closing each other is regulated. That is, in this state, the winding claws 35 are restricted from rotating in the closing direction by the restriction cam 41, and at the same time, the lower base is closed.
The edge A of the sliding table 31 restricts the rotation of the winding claws 35 in the direction in which the winding claws 35 open, so that the pair of winding claws 35 are extended while being maintained in a substantially parallel state.

FIG. 4 shows a state in which the film F is wound by the winding claw 35. In the winding operation, the motor M
Drive gear 6 is driven to rotate, driven gear 5 is driven, and rotary holder 4 is moved to the ball bearing in housing 2.
It is supported and rotated by 3a and 3b. As shown in FIG. 4, the film F is fed from the original by rollers 51, 52 and other guide means. Then, the film F is wound by the rotating winding claw 35. In such a case, a constant rotational load is applied to the original film for supplying the film, and the film F is wound by the winding claw 35 in a state where tension is applied. Therefore, the winding operation is performed in a state where the tightening force is applied to the pair of winding claws 35 by the film tension. When the film F is wound by a certain number of turns, the supplied film F is cut.

When the winding is completed, the air cylinder 20 contracts,
The rotation link 16 rotates counterclockwise. The pushing shaft 10 is fed downward by the arm 16a of the rotary link 16 in FIG. Extruded shaft, as shown in Figure 3B
When 10 is sent out from the inside of the rotary holder 4, the regulation side 41b of the regulation cam 41 at the tip thereof is disengaged from the pair of rollers 44, and the regulation on the winding claw 35 is released. In the winding operation, since the film F is tightly wound around the winding claw 35 and a contracting force is applied to the pair of winding claws 35, the regulation cam
When the restriction by 41 is released, as shown in FIG. 3B, the pair of take-up claws 35 use the support pins 36 as fulcrums and the claw tips 35.
b The two are rotated in the closing direction, and the film F is loosened from the winding claw 35. When the pushing shaft 10 further advances, the pushing plate 42 provided at the tip of the pushing shaft pushes the film F, and the film F wound by a certain amount is pulled out from the winding claw 35. The film F thus taken out is in a state as shown in FIG.

FIG. 5 shows a second embodiment of the present invention.

In this embodiment, three winding claws 35 are provided.
The three winding claws 35 are radially arranged, and a roller 44 is provided on each of them. The push-out shaft 10 is inserted in the middle of the winding claws 35, and a cylindrical regulation cam 41 is provided at the tip thereof. When the regulation surface 41a on the outer periphery of the regulation cam 41 is between the rollers 44, the rotation of each winding claw 35 in the closing direction is regulated. When the push-out shaft 10 moves forward, the roller 44 is disengaged from the regulation surface 41a, the regulation of the winding claw 35 is released, and the film wound around it is loosened. Although not shown in FIG. 5, each winding claw
A stopper for restricting the rotation of the 35 in the direction of opening each other is provided, and an extruding plate for extracting the loosened film from the winding claw 35 is provided at the tip of the restricting cam 41.

In each of the above examples, the case of winding the film is shown, but the same applies to the case of winding the yarn or the wool yarn by the winding claw without using the core.

〔effect〕

As described above, according to the present invention, when winding a film or the like, the rotation of each of the plurality of winding claws in the closing direction is restricted, and when the winding is completed, the restriction of the winding claw is released. By closing the winding claw, the winding force of the film or the like can be relaxed, and the film or the like can be taken out from the winding claw. Further, the forward movement of the extrusion shaft enables not only the release of the regulation of the take-up pawl but also the operation of ejecting the film or the like after the take-up pawl from the take-up pawl. Therefore, it is possible to easily discharge the film or the like after winding the film by only the linear movement of the extrusion shaft.

In the illustrated embodiment, as shown in FIG. 2, the lower base, the upper base, and the winding claw are assembled into a unit, which is mounted in a recessed portion at the tip of the rotary holder 4 and fixed. Therefore, the assembling work becomes very easy.

[Brief description of drawings]

FIG. 1 shows a first embodiment of the present invention, and is a half cross-sectional plan view showing the entire structure of a winding device. FIG. 2 is an assembly explanatory view showing a portion to which the winding claw is attached. FIG. 3A is a plan view of a winding claw mounting portion showing a state in which a film or the like is wound, and FIG. 3B is a plan view showing a winding claw mounting portion in a state in which winding of a film or the like is completed. FIG. 4 is a front view of a winding claw portion showing a state in which a film or the like is being wound, FIG. 5 is a perspective view of the winding claw showing a second embodiment of the present invention, and FIG. It is a perspective view which shows the film wound up without using a core. 1 ... Chassis, 2 ... Housing, 4 ... Rotary holder, 5,6 ... Gear, M ... Motor, 10 ... Extrusion shaft, 16 ... Rotating link, 20 ... Air cylinder, 31 ... Lower base, 32 …… Upper base, 35 …… Winding claw, 36…
… Support pin, 41 …… Regulation cam, 42 …… Extrusion plate, 44…
…roller.

Claims (1)

[Scope of utility model registration request] 1. A plurality of winding claws project from a base that is driven to rotate by a motor, and the base ends of the respective winding claws are supported by the base so that the tips of the claws can move in a direction to close each other. In addition, an extruding shaft is provided in the middle of each winding claw so as to be able to move forward and backward, and this extruding shaft prevents movement of each winding claw in the closing direction when retracting in the proximal direction of the claw. A restricting cam is provided which prevents the winding claws from moving in the closing direction when advancing in the tip direction of the claws, and the push-out shaft is provided in the winding claws when advancing in the claw tip direction. A winding device provided with an extruding member for pulling out a wound thing from a claw