JP2013075073A - Flexible object perforating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flexible object perforating apparatus capable of easily forming a hole on a flexible object regardless of the feature of the flexible object.SOLUTION: The flexible object perforating apparatus 1 includes: a perforation drum 9 having a plurality of projections 7 arrayed with a gap from each other in the axial direction and circumferential direction of a base material 5; a turning means 11 for rotating the perforation drum 9; a support member 13 arranged at the lower part of the perforation drum 9; a conveyance belt 15 passing through between the perforation drum 9 and the support member 13; and a conveyance means 17 for making the conveyance belt 15 travel. The support member 13 supports the conveyance belt 15 at such a height that the projections 7 of the perforation drum 9 are to be pierced, the projections 7 of the perforation drum 9 penetrate through the flexible object 3 received by the conveyance belt 15, and thus a plurality of holes arrayed in a mesh shape are formed on the flexible object 3.

Description

  The present invention relates to a flexible material punching device that forms a plurality of holes in a flexible material that is particularly vulnerable.

  In the treatment of a full-thickness skin defect wound, a plate-like flexible material such as a freeze-dried collagen sponge laminated with a silicone film or a single-layer freeze-dried collagen sponge may be used. In this case, the dermis layer can be regenerated by sticking a flexible material to the wound and growing fibroblasts and capillaries generated in the human body into the gaps in the collagen sponge.

  In order to promptly guide fibroblasts and capillaries throughout the flexible object, there is an attempt to form a plurality of holes 103 in the flexible object 101 as shown in FIG. The plurality of holes 103 are preferably arranged in a mesh pattern along a plurality of virtual lines that are parallel to or intersecting with each other. Further, the hole 103 serves to promote the discharge of body fluid that oozes from the wound. However, if a blade or the like is pierced into the flexible object 101 to form the hole 103 in the flexible object 101, the flexible object 101 may be torn or damaged, or the flexible object 101 may be distorted or sponge-like flexible There arises a problem that the voids of objects are crushed.

JP 03-224573 A Japanese Patent Laid-Open No. 04-108444 JP 05-43734 A Japanese Patent Laid-Open No. 07-194687 Japanese Patent Laid-Open No. 10-80438 JP-A-2005-314

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a flexible object punching device that can easily form a hole in a flexible object regardless of the characteristics of the flexible object.

  The present invention is a flexible object punching device that forms a plurality of holes in a flexible object, and is arranged with a gap between each other in the axial direction of a cylindrical base material extending in the horizontal direction and the circumferential direction of the base material. A perforating drum having a plurality of protrusions, a rotating means for rotating the perforating drum in a circumferential direction thereof, a support member disposed below the perforating drum, and passing between the perforating drum and the supporting member. A conveyor belt for receiving the flexible object, and a conveying means for running the conveyor belt, wherein the support member supports the conveyor belt at a height at which the protrusion of the perforating drum is stuck, and the flexible object is conveyed by the conveyor belt. In the process, the protrusion of the perforated drum penetrates the flexible material.

  Further, the present invention is characterized in that the conveying means causes the conveying belt to travel at a speed synchronized with a peripheral speed at which the protrusion of the perforating drum rotates.

  Further, according to the present invention, the conveying unit includes a supplying unit that supplies the conveying belt, and a winding unit that winds the conveying belt supplied from the supplying unit, and the conveying belt is wound from the supplying unit to the winding unit. It passes between the said perforation drum and the said supporting member in the process which goes to a taking means, It is characterized by the above-mentioned.

  Further, the present invention is characterized in that a plurality of regulating wires extending in a direction in which the transport belt travels and entering the gaps between the plurality of protrusions are arranged above the flexible object.

  Further, the present invention is characterized in that the plurality of restriction wires are juxtaposed in the axial direction of the base material of the perforated drum.

  Further, the present invention is characterized by comprising adjusting means for adjusting the width between the perforating drum and the support member.

  According to the flexible object punching device of the present invention, a plurality of holes arranged in a mesh shape are made into a flexible object by the protrusions of the perforating drum being inserted into the flexible object in the process in which the flexible object is received and conveyed by the conveyor belt. Can be formed. Therefore, when the protrusion pierces the flexible object, the support member receives the downward force received by the flexible object from the protrusion, and the support member supports the conveyor belt at a height at which the protrusion of the perforating drum pierces the conveyor belt. For this reason, the protrusion of the perforating drum can be surely penetrated through the flexible object without bending the flexible object downward.

  In addition, since the flexible material is easily deformed when directly receiving a propulsive force or a traction force during conveyance, the flexible material punching device according to the present invention realizes conveyance of the flexible material by placing the flexible material on the conveyance belt. . For this reason, the flexible object maintains its shape with high accuracy during conveyance. Further, the flexible object placed on the conveyor belt is not rubbed against the support member, and a frictional force that distorts the flexible object between the flexible object and the support member does not occur.

  When the conveyor belt travels at a speed synchronized with the peripheral speed of rotation of the protrusion of the perforating drum, the transport belt runs on the flexible object with the protrusion of the perforating drum passing through the flexible object conveyed by the conveyor belt. The pulling force in the direction is not added. For this reason, according to the flexible material punching device concerning the present invention, the above-mentioned effect can be achieved without distorting the shape of the flexible material in the direction in which the transport belt travels.

  Furthermore, according to the flexible object punching device according to the present invention, since the transport belt passes between the punching drum and the support member in the process from the supply unit to the winding unit, the transport once pierced by the protrusion of the punching drum is performed. The belt portion is wound up by a winding means. For this reason, since the conveyor belt cannot place the flexible object again on the part once pierced by the protrusion of the perforating drum, the shavings caused by the protrusion of the perforating drum repeatedly piercing the conveyor belt adhere to the flexible object. Can be prevented.

  In addition, since the protrusions of the perforating drum do not penetrate the conveyance belt (stopped by half-cut), shavings that immediately scatter from the conveyance belt are unlikely to occur. Before the shavings scatter from the part of the conveyor belt once pierced by the protrusion of the perforating drum, this part is wound up by the winding means. Further, the support member is not damaged by the projection of the perforating drum, and shavings on the support member are not generated.

  The protrusions penetrating the flexible material turn upward as the perforating drum rotates. At this time, the flexible material may receive an upward frictional force from the protrusion. According to the flexible material punching device of the present invention, since the plurality of restriction wires are arranged above the flexible material penetrating the protrusion of the punching drum, the flexible material is bent by the upward frictional force received from the protrusion. Can be prevented or entanglement of the flexible material with the perforated drum can be prevented. In addition, the regulation wire extends in the traveling direction of the conveyor belt and enters the gap between the plurality of protrusions, and thus does not block between the perforated drum and the flexible object.

  Furthermore, according to the flexible object punching device of the present invention, the plurality of restriction wires are arranged in parallel with each other in the axial direction of the base material of the punch drum (hereinafter simply referred to as the axial direction). The above effect can be achieved uniformly in the axial direction.

  Furthermore, since the flexible object punching apparatus according to the present invention can adjust the width between the punching drum and the support member by the adjusting means, the depth at which the protrusion of the punching drum pierces the transport belt can be freely increased or decreased. . For this reason, when the perforation drum is replaced with one having a different projection length, or when the perforation drum projection is shortened due to wear or the like, the perforation drum projection is transferred to the conveyor belt at a desired depth. The piercing and protrusion of the perforating drum can be surely penetrated through the flexible object. Further, there are various types of flexible objects having different thicknesses, and the adjusting means has an advantage that the width of the flexible object can be adjusted as desired based on the thickness.

Sectional drawing of the principal part explaining the principle of the flexible material punching apparatus which concerns on embodiment of this invention. The top view of the principal part of the flexible material punching apparatus which concerns on embodiment of this invention. The side view of the flexible material punching apparatus which concerns on embodiment of this invention. The sectional view of the direction of an axis of a perforation drum applied to a flexible thing perforation device concerning an embodiment of the present invention. The top view which shows the support structure of the punching drum by the adjustment means applied to the flexible material punching apparatus which concerns on embodiment of this invention. AA line sectional view of Drawing 5. The top view which shows the example of a form of a flexible material.

  The drawings refer to FIGS. 1 to 3 unless otherwise specified. A flexible material punching device 1 according to an embodiment of the present invention forms a plurality of holes in a flexible material 3, and extends in the axial direction of a columnar base material 5 extending in the horizontal direction and in the circumferential direction of the base material 5. A perforation drum 9 having a plurality of protrusions 7 arranged with a gap between each other, a rotating means 11 for rotating the perforation drum 9 in its circumferential direction, a support member 13 disposed below the perforation drum 9, and a perforation Conveying belt 15 passing between drum 9 and support member 13 and conveying means 17 for causing conveying belt 15 to travel in the direction of arrow T at a speed synchronized with the peripheral speed of rotation of protrusion 7 of perforating drum 9 are provided. .

  Arrows S and R respectively indicate the direction along the axial direction and the circumferential direction of the substrate 5. The protrusion 7 is omitted in FIG. The base material 5 of the perforated drum 9 shown in FIG. 4 is obtained by supporting a plurality of annular plates 19 overlapping in the axial direction with a support shaft 21 and connecting these annular plates 19 to each other. The annular plate 19 is formed with projections 7 that are tooth-shaped blades at equal intervals on the entire circumference thereof, and the adjacent annular plates 19 are positioned on the support shaft 21 so that the positions of the respective projections 7 are different in the circumferential direction. The support shaft 21 is supported inside the rectangular frame 23. In addition, when there is a plurality of annular plates 19 in which the protrusions 7 are missing, the function of the perforated drum 9 can be easily recovered by simply replacing the annular plate 19.

  The rotating means 11 is an electric motor that inputs a rotational force in the direction of arrow R to the support shaft 21. The support member 13 includes a support roller 27 that is supported by the housing 25 directly below the perforating drum 9, and two support plates 29 that face each other with the support roller 27 interposed therebetween from a horizontal direction orthogonal to the axial direction. The conveyor belt 15 is supported by the support member 13 at a height at which the protrusion 7 of the perforating drum 9 is pierced. The rotating means 11, the rectangular frame 23, and the two support plates 29 are supported by the housing 25.

  The transport unit 17 includes a supply unit 31 that supplies the transport belt 15 and a winding unit 33 that winds the transport belt 15 supplied from the supply unit 31. The conveyor belt 15 may be a belt made of synthetic resin, rubber, or composite material. The supply unit 31 supports a roll 34 formed by winding the transport belt 15 by a winding shaft 35 supported by the housing 25.

  The take-up means 33 rotates the take-up shaft 37 supported by the housing 25 by an electric motor. The take-up belt 33 can be fed out from the supply means 31 while the carry belt 15 is wound around the take-up shaft 37. it can. Reference numeral 39 denotes a process in which the conveyor belt 15 travels from the supply unit 31 to the winding unit 33, and guides the conveyor belt 15 to the upper surfaces of the two support plates 29 to convey between the perforating drum 9 and the support roller 27. It refers to a guide roller that guides the belt 15 to pass.

  Further, the flexible material punching device 1 includes a regulation wire 41 that extends in the traveling direction of the transport belt 15 and enters a gap between the projections 7 of the plurality of annular plates 19. The regulating wire 41 is hooked on pins 43 whose both ends are fixed to the inside of the rectangular frame 23, and wraps around the lower side of the base material 5 of the perforated drum 9. It is preferable that the plurality of restriction wires 41 are arranged in parallel in the axial direction. As the material of the regulation wire 41, it is preferable to apply a flexible synthetic resin yarn such as nylon.

  5 and 6 show an example in which the adjustment means 45 for adjusting the width between the perforation drum 9 and the support roller 27 of the support member 13 is applied to the flexible object perforation apparatus 1. The rectangular frame 23 is formed by framing a front member 47, a pair of side members 49, and a back member 51, and two horizontal members 53 are bridged between the pair of side members 49. The adjusting means 45 has two screw rods 55 and 56 extending in the axial direction, slide cams 59 and 60 having sliding contact surfaces 57, and both sliding ends of the support roller 27. And driven bearings 61 and 62 supported by the surface 57.

  The screw rods 55 and 56 are supported by the front member 47 and the back member 51, and a hand handle 63 is attached to each end. Reference numeral 65 indicates a clamp device for fixing or releasing the screw rods 55 and 56 to the front member 47. The slide cam 59 is screwed to the screw rod 55. The screw rod 56 passes through the slide cam 59, but is not joined to the slide cam 59. The slide cam 60 is screwed with the screw rod 56. The screw rod 55 passes through the slide cam 60 but is not joined to the slide cam 59.

  The slide cams 59 and 60 are opposed to each other in the axial direction at a position sandwiching the support roller 27, and the respective sliding contact surfaces 57 are inclined so as to descend toward the inside of the slide cams 59 and 60. Reference numeral 69 indicates a guide groove formed in the horizontal member 53. Depending on the direction in which the operator rotates the screw rods 55, 56, the slide cams 59, 60 move in the direction of arrow F or B. The driven bearing 61 of the sliding contact surface 57 of the sliding cam 59 moving in this way is guided, and the one end 67 of the support roller 27 moves up and down with respect to the other end 68 together with the driven bearing 61.

  On the other hand, the driven bearing 62 is guided by the sliding contact surface 57 of the slide cam 60, and the other end 68 of the support roller 27 moves up and down with respect to the one end 67 together with the driven bearing 62. The operation of the adjusting means 45 described so far is performed to adjust the inclination of the support roller 27. When the operator moves the slide cams 59 and 60 toward each other, the support roller 27 rises with respect to the perforated drum 9 together with the driven bearings 61 and 62. Thereby, the space between the perforating drum 9 and the support roller 27 can be narrowed. Further, when the operator moves the slide cams 59 and 60 away from each other, the support roller 27 is lowered with respect to the perforating drum 9. Thereby, the space between the perforating drum 9 and the support roller 27 can be widened.

  According to the flexible object punching device 1 described above, the flexible object 3 can be received by the conveyor belt 15 and the flexible object 3 can be conveyed according to the traveling of the conveyor belt 15. In this process, the protrusion 7 of the perforating drum 9 shown in FIG. 1 pierces the flexible object 3, so that a plurality of holes arranged in a mesh shape can be formed in the flexible object 3. For this reason, the flexible object 3 is not rubbed against the support member 13, and no frictional force is generated between the flexible object 3 and the support plate 29 of the support member 13, so that it is not necessary to distort the flexible object 3. There are advantages.

  In particular, since the flexible object punching device 1 causes the conveyor belt 15 to travel at a speed synchronized with the peripheral speed of rotation of the protrusion 7 of the punching drum 9, the flexible object 3 transported by the conveyor belt 15 is transferred to the protrusion 7 of the punching drum 9. In the state where the thread penetrates, the pulling force in the direction in which the conveyor belt 15 travels is not applied to the flexible object 3. For this reason, according to the flexible material punching device 1, the above-described effect can be achieved without distorting the shape of the flexible material 3 in the traveling direction of the transport belt 15.

  Further, when the protrusion 7 pierces the flexible object 3, the support member 13 receives the downward force that the flexible object 3 receives from the protrusion 7, and the support member 13 has a height at which the protrusion 7 of the perforating drum 9 pierces the conveyance belt 15. The conveyor belt 15 is supported. For this reason, the protrusion 7 of the perforating drum 9 can be surely penetrated through the flexible object 3 without bending the flexible object 3 downward.

  Subsequently, since the protrusion 7 of the perforating drum 9 penetrating the flexible object 3 turns upward as the perforating drum 9 rotates, a frictional force for pulling up the flexible object 3 is generated between the flexible object 3 and the protrusion 7. May occur. In this case, the flexible material 3 is restricted from being bent upward by the reaction force from the restriction wire 41 positioned above the flexible material 3 penetrating the protrusion 7 of the perforating drum 9 to the flexible material 3, or the flexible material. 3 can be prevented from being entangled with the perforating drum 9. Further, the regulation wire 41 does not block between the perforated drum 9 and the flexible object 3. The effects of the plurality of restriction wires 41 described here are uniformly achieved in the axial direction of the base material 5 of the perforated drum 9.

  Further, according to the flexible material punching device 1, since the transport belt 15 passes between the punching drum 9 and the support member 13 in the process from the supply unit 31 to the winding unit 33, The part of the conveyor belt 15 pierced once is wound up by the winding means 33. For this reason, since the flexible belt 3 cannot be put again on the site | part once stabbed by the protrusion 7 of the perforation drum 9, the conveyance belt 15 originates in the protrusion 7 of the perforation drum 9 being repeatedly stabbed by the conveyance belt 15. The shavings do not adhere to the flexible object 3.

  Furthermore, since the flexible object punching device 1 can adjust the width between the punching drum 9 and the support member 13 by the adjusting means 45, the depth at which the protrusion 7 of the punching drum 9 pierces the conveyor belt 15 can be freely increased or decreased. be able to. For this reason, when the perforation drum 9 is replaced with one having a different length of the protrusion 7 or when the protrusion 7 of the perforation drum 9 is shortened due to wear or the like, the protrusion 7 of the perforation drum 9 is moved to the transport belt. The protrusion 7 of the perforating drum 9 can be surely penetrated through the flexible object 3 without being pierced in the desired depth 15 and bending the flexible object 3 downward.

  It should be noted that the present invention can be carried out in a mode in which various improvements, modifications, or variations are added based on the knowledge of those skilled in the art without departing from the spirit of the present invention. The total number of protrusions 7 on the perforating drum 9, the arrangement, the shape of each protrusion 7, the blade width, the thickness, and the length protruding from the base material 5 are items that can be arbitrarily set, and are limited to the form shown in FIG. 4. Is not to be done. Either the support roller 27 of the support member 13 or the support plate 29 may be omitted. All the holes formed in the flexible material 3 do not have to penetrate the flexible material 3.

  If the shavings on the conveyor belt 15 are not regarded as a problem, the conveyor belt 15 may be endless, and the protrusion 7 of the perforating drum 9 may be pierced repeatedly. Even if the regulating wire 41 and the adjusting means 45 are omitted, the implementation of the present invention is not hindered. Further, the traveling speed of the conveyor belt 15 may be made faster or slower than the peripheral speed of the protrusion 7 of the perforating drum 9 rotating. In this case, the size of the hole formed in the flexible object 3 can be made larger than the blade width of the protrusion 7.

  The present invention is not limited to the medical field, and is a technique useful for processing a flexible object of any application, material, or shape.

  DESCRIPTION OF SYMBOLS 1 ... Flexible material punching device, 3,101 ... Flexible material, 5 ... Base material, 7 ... Protrusion, 9 ... Drilling drum, 11 ... Turning means, 13 ... Support member, 15 ... conveying belt, 17 ... conveying means, 19 ... annular plate, 21 ... support shaft, 23 ... square frame, 25 ... casing, 27 ... support Roller, 29 ... support plate, 31 ... supply means, 33 ... winding means, 34 ... roll, 35 ... winding shaft, 37 ... winding shaft, 39 ... Guide roller, 41 ... regulated wire, 43 ... pin, 45 ... adjustment means, 47 ... front material, 49 ... side material, 51 ... back material, 53 ... horizontal Material, 55, 56 ... Screw rod, 57 ... Sliding contact surface, 59, 60 ... Slide cam, 61, 62 ... Driven bearing, ..., 63 ... Hand turning handle, 65. ..Clamping device, 67 ... one end, 68 ... other end, 69 ... guide groove, 103 ... hole.

Claims (6)

A flexible material punching device for forming a plurality of holes in a flexible material,
A perforated drum having a plurality of protrusions arranged with a gap in the axial direction of a cylindrical base material extending in the horizontal direction and in the circumferential direction of the base material;
Rotating means for rotating the perforated drum in its circumferential direction;
A support member disposed below the perforating drum;
A transport belt that passes between the perforating drum and the support member and receives a flexible material;
Conveying means for running the conveyor belt,
The supporting member supports the conveying belt at a height at which the protrusion of the perforating drum is pierced, and the protrusion of the perforating drum penetrates the flexible object in the process of conveying the flexible object by the conveying belt. Object punching device.   2. The flexible object punching device according to claim 1, wherein the transport unit causes the transport belt to travel at a speed synchronized with a peripheral speed of rotation of a protrusion of the punching drum. The conveying means includes a supplying means for supplying the conveying belt, and a winding means for winding the conveying belt supplied from the supplying means,
The flexible material punching device according to claim 1, wherein the conveyor belt passes between the punching drum and the support member in a process of traveling from the supply unit to the winding unit.   4. The flexible object perforation according to claim 1, wherein a plurality of restriction wires extending in a traveling direction of the conveyor belt and entering a gap between the plurality of protrusions are disposed above the flexible object. 5. apparatus.   5. The flexible object punching device according to claim 1, wherein the plurality of restriction wires are arranged in parallel with each other in the axial direction of the base material of the punching drum.   The flexible material punching device according to any one of claims 1 to 5, further comprising adjusting means for adjusting a width between the punching drum and the support member.

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