CN101422800A

CN101422800A - Material feeding apparatus

Info

Publication number: CN101422800A
Application number: CNA2008101731526A
Authority: CN
Inventors: 加藤平三郎
Original assignee: Sankyo Manufacturing Co Ltd
Current assignee: Sankyo Manufacturing Co Ltd
Priority date: 2007-10-31
Filing date: 2008-10-30
Publication date: 2009-05-06
Anticipated expiration: 2028-10-30
Also published as: TW200925094A; KR20090045074A; KR101072521B1; JP2009106991A; DE602008002123D1; TWI368594B; EP2055401B1; EP2055401A1; US20090120989A1; JP5139034B2; CN101422800B

Abstract

A material feeding apparatus has a vibration absorbing construction, in which an impulse and vibrations from a press apparatus, etc. are hard to transmit to a material feeding equipment, etc., and includes an inner housing that accommodates therein the material feeding equipment, and an outer housing connected to the inner housing through a vibration absorbing member. A vibration restricting member is provided between the housings to restrict the degree of freedom of vibrations, which are transmitted to the inner housing through the vibration absorbing member when an impulse force acts on the outer housing, only in a vertical direction. The vibration restricting member includes an upper plate member, upper and lower surfaces of which are interposed between a top wall of the outer housing and a top wall of the inner housing, and a lower plate member, upper and lower surfaces of which are interposed between a bottom wall of the outer housing and a bottom wall of the inner housing.

Description

Material feeding apparatus

Technical field

The present invention relates to a kind of scheduled volume follows scheduled volume ground and will be fed to material feeding apparatus such as the processing machine of press device etc. such as the material of sheet material, wire rod etc. off and on, more particularly, relate to the material feeding apparatus that a kind of material that is suitable at a high speed, will be used for accurately the used small parts of electronic component industry is fed to press device.

Background technology

Usually, to be fed to press device off and on so that the material withstanding pressure is processed the Small electronic component of making such as connector, terminal etc. (for example, referring to JP-A-2004-142876) around the material that coiler is reeled by using the material feeding apparatus scheduled volume to follow scheduled volume ground.

For make this Small electronic component at a high speed, withstanding pressure processing accurately, must make press device can be at a high speed, operation accurately, and make material feeding apparatus can be at a high speed, feedthrough material accurately.

Traditionally, the equipment that will be fed to off and on such as the material of sheet material, wire rod etc. such as the processing machine of press device etc. comprises roller feeder and clamping feeder etc., the roller feeder is plugged between home roll and the secondary roller material to carry material, the clamping feeder is plugged in material between fixed clamp device and the mobile clamper, this mobile clamper can be along towards moving (for example to carry material with direction away from this fixed clamp device, referring to United States Patent (USP) the 5th, 720, No. 421 and JP-A-2000-135530).

Also have, more known roller feeder arrangement become: home roll by servomotor drive rotationally with can with press device synchronous operation (for example, referring to United States Patent (USP) the 5th, 720, No. 421).

Traditionally, allegedly the impact force action of 10G to 20G is in the pressure processing of press device, and when material feeding apparatus was mounted to press device, fastening material device for feeding and press device were to reduce the influence of impulsive force firmly.Therefore, probably the vibration that is caused by the impulsive force that occurs on the press device can be directly delivered to material feeding apparatus, and this vibration causes that material presents that precision reduces and is to be damaged on the unsettled position in the installment state of lid etc.Traditionally, for fear of this shortcoming, may the part through being damaged be mounted to wherein vibrative equipment (for example, referring to JP-U-6-76744) such as press device etc. by damping component (buffer component) such as rubber etc.

Damping component in the correlation technique is arranged on does not suitably influence the position that material is presented precision, for example between installed part and press device such as lid etc., but is unsuitable for presenting the position of precision and using influencing material unfriendly.

For example, in above-mentioned roller feeder, home roll is driven rotationally by servomotor, and the rotation of servomotor directly influences material and presents precision.Therefore, probably when servomotor and press device directly are clamped together, the vibration that is caused by the impulsive force that occurs on the press device can act directly on the servomotor, thereby causes the damages such as signal of telecommunication transtation mission circuit that material is presented precision reduction and servomotor, is associated with it.

For fear of this shortcoming, can imagine by providing elasticity in the installation portion of damping component between servomotor and press device.Yet when the installation portion of servomotor had than required bigger elasticity, probably material was presented precision and can be reduced, so be difficult to take effective countermeasure to resist vibration.

Summary of the invention

The purpose of this invention is to provide a kind of material feeding apparatus that addresses the above problem, this material feeding apparatus has vibration-proof structure, and the shock and vibration that wherein come from the outside are difficult to be delivered to material feeding means etc.

In order to address the above problem, the invention provides a kind of material feeding apparatus, this material feeding apparatus comprises: inner case, inner case holds the material feeding means therein; Outside case, outside case surrounds inner case and is connected to inner case by damping component; And the limit member that shakes, the limit member that shakes is arranged between inner case and the outside case, is limited in a direction by the free degree that damping component is passed to the vibration of inner case will work as impact force action externally on the case time.

In the present invention, case is a double-decker, thereby the vibration that is caused by the impulsive force that acts on the outside case is by such as damping component (or claiming buffer component) vibration damping of vibration-proof rubber etc. and be passed to inner case.Therefore, can prevent to be contained in the material feeding means in the inner case, the damages such as signal of telecommunication transtation mission circuit that are associated with it effectively.

When vibration produces, be tending towards freely being shifted such as damping components such as vibration-proof rubbers along X-direction (left and right directions), Y direction (vertical direction) and Z-direction (longitudinal direction), these axles are perpendicular to one another, and damping component is tending towards freely being shifted along the direction of reversing around corresponding axis.Yet in the present invention, limit the member that shakes to be limited in a direction from outside case by the free degree that damping component is passed to the vibration of inner case.Therefore, because the material feeding means that is contained in the inner case only vertically vibrates, present so can stably implement high-speed, high-precision material.

When material feeding apparatus was fixed to used press device, the direction of the vibration that is caused by the impact that occurs on the press device mainly was vertical, and was level by material feeding apparatus with the feed direction that material is fed to press device.Therefore, the free degree of limitting the member that shakes preferably will be passed to the vibration of inner case is limited in vertical direction.Because this structure, even when vibration is passed to the material feeding means that is contained in the inner case, the direction of vibration also is vertical, and the precision that the material along continuous straight runs is presented is influenced hardly.

In this case, preferably, damping component comprises top damping component and bottom damping component, the top damping component is plugged between the roof of the roof of outside case and inner case, the bottom damping component is plugged between the diapire of the diapire of outside case and inner case, limit the member that shakes to comprise upper plate member and following board member, the upper surface of upper plate member and lower surface are plugged between the roof of the roof of outside case and inner case, and the upper surface of following board member and lower surface are plugged between the diapire of the diapire of outside case and inner case.

Description of drawings

Fig. 1 is the schematic front view of Rankine-Hugoniot relations between material feeding apparatus, press device and the coiler that illustrates according to one embodiment of the invention;

Fig. 2 is the axial cutaway view that material feeding apparatus is shown;

Fig. 3 is the cutaway view that side direction is seen from Fig. 2;

Fig. 4 illustrates Rankine-Hugoniot relations between outside case shown in Figure 2 and the inner case and arrow IV-IV direction is seen in Fig. 5 cutaway view;

Fig. 5 is the cutaway view that arrow V-V direction is seen in Fig. 1 and 2;

Fig. 6 is the cutaway view that arrow VI-VI direction is seen in Fig. 4;

That Fig. 7 A, 7B and 7C are that arrow VII-VII direction is seen in Fig. 4 and the shake cutaway view of three kinds of different arrangements of member and following board member installed part of damping component, limit is shown; And

Fig. 8 A, 8B and 8C are the cutaway views that the state of limitting the member constrained vibration free degree of shaking is shown.

The specific embodiment

Fig. 1 shows the Rankine-Hugoniot relations between material feeding apparatus 1, press device 4 and the coiler 3.The material feeding apparatus 1 that is fixed to press device 4 is configured to: the material 2 of reeling around coiler 3 is plugged between the home roll 5 and secondary roller 6 of constituent material feeding means, and scheduled volume is followed scheduled volume ground and is fed to press device 4 off and on.Press device 4 comprises the metal die that is used for pressure processing 7,8 such as drift.When pressure processing, the vibration that causes by the impulsive force that is created on the press device 4 mainly vertically, shown in the arrow A among Fig. 1.

Shown in Fig. 2 to 6, the case of material feeding apparatus 1 is a double-decker, comprise inner case 9 and outside case 11, outside case 11 surrounds inner cases 9 and is connected to inner case 9 by damping component (or title buffer component) 10a, 10b, 10c, the 10d that is formed by vibration-proof rubber etc., and the home roll 5 of constituent material feeding means and secondary roller 6 are contained in the inner case 9.Home roll 5 utilizes bearing 12a, the 12b between itself and the inner case 9 to be rotatably supported in the inner case 9, and secondary roller 6 utilizes bearing 13a, the 13b between itself and the inner case 9 to be rotatably supported in the inner case 9, and servomotor 14 is connected to home roll 5.

Material feeding apparatus 1 is configured to: home roll 5 and secondary roller 6 are plugged in material 1 therebetween, servomotor 14 drives home roll 5 rotationally in mode intermittently and carries material 2 with the direction along arrow B among Fig. 3, thereby follow scheduled volume with mode scheduled volume intermittently material 2 is fed to press device 4.

In addition, thisly wherein become pair roller to plug material and carry the material feeding apparatus of material to be typically provided with mechanism with the operation synchronous operation of press device, thereby just before pressure processing, discharge, also be provided with the mechanism that is adjusted to the gap between the pair roller according to material thickness by becoming pair roller to be applied to the power that plugs of material.Take known structure just enough suitably for these mechanisms.

The limit member that shakes is set between inner case 9 and outside case 11, and this limit member that shakes will be worked as impact force action and will be limited in a direction by the free degree that damping component 10a to 10d is passed to the vibration of inner case 9 externally on the case 11 time.

In embodiment as shown in the figure, limit the member that shakes to comprise upper plate member 15 and following board member 16, the upper surface of upper plate member 15 and lower surface are plugged between the roof 9a of the roof 11a of outside case 11 and inner case 9, and down between the diapire 9b of the upper surface of board member 16 and diapire 11b that lower surface is plugged in outside case 11 and inner case 9, following board member 16 is parallel to upper plate member 15 and is provided with.

Also have, in embodiment as shown in the figure, damping component 10a to 10d comprises

top damping component

10a, 10b and

bottom damping component

10c, 10d, the top damping component is plugged between the roof 9a of the roof 11a of outside case 11 and inner case 9, and the bottom damping component is plugged between the diapire 9b of the diapire 11b of outside case 11 and inner case 9.

Upper plate member 15 be plugged in outside case 11 roof 11a inner surface two axial ends neighbouring part and between the outer surface of the upper plate member installed part 9a ' that forms the axial centre of the roof 9a of inner case 9 near, and be fixed to the roof 11a of outside case 11 and the roof 9a of inner case 9 with

bolt

17a, 17b, 17c.

Following board member 16 be plugged in outside case 11 diapire 11b inner surface two axial ends neighbouring part and between the outer surface of the following board member installed part 9b ' that forms the axial centre of the diapire 9b of inner case 9 near, and be fixed to the diapire 11b of outside case 11 and the diapire 9b of inner case 9 with

bolt

18a, 18b, 18c.

Top damping component

10a, 10b extend through upper plate member 15 and be installed in the roof 11a of outside case 11 and the roof 9a of inner case 9 between.Equally,

bottom damping component

10c, 10d extend through down board member 16 and be installed in the diapire 11b of outside case 11 and the diapire 9b of inner case 9 between.

Fig. 7 A to 7C shows down the Rankine-Hugoniot relations of following board member installed part 9b ' of the diapire 9b of board member 16,

bottom damping component

10c, 10d and inner case 9.Shown in Fig. 7 A, following board member installed part 9b ' forms the length that has less than the width W of inner case 9, on the respective sides of following board member installed part 9b '

bottom damping component

10c, 10d being set seriatim.Also have, shown in Fig. 7 B, following board member installed part 9b ' can have the length of the width W that equals inner case 9 substantially, stablizes to make the deflection deformation of board member 16 down when applying vibration.Fig. 7 C shows the modification of structure shown in Fig. 7 A, and its middle and lower

part damping component

10c, 10d are arranged on down on the respective sides of board member installed part 9b ' in twos.

The upper plate member installed part 9a ' of the roof 9a of upper plate member 15,

top damping component

10a, 10b and inner case 9 can with the same way as setting of the following board member installed part 9b ' of the diapire 9b that board member 16,

bottom damping component

10c, 10d and inner case 9 are set down shown in Fig. 7 A to 7C.Yet near the state in top that respective members is arranged on inner case and outside case needn't require identical with near the state in bottom that respective members is arranged on case.For example, structure for upper plate member 15,

top damping component

10a, 10b and upper plate member installed part 9a ' can be taked the structure shown in Fig. 7 A, can take the structure shown in Fig. 7 C for the structure of following board member 16,

bottom damping component

10c, 10d and following board member installed part 9b '.Like this,, can produce the difference of intrinsic frequency, with the resonant frequency that can increase entire equipment and produce the situation that is difficult to take place resonance by between the top of case and bottom, forming the different damping component of quantity.

Fig. 8 A to 8C shows owing to being provided with formation and limits the upper plate member 15 and the following board member 16 of the member that shakes to make the restricted state of vibrational degrees of freedom.

Fig. 8 A shows outside case 11 and inner case 9 passes through damping component 10a to 10d structure connected to one another, and any upper plate member 15 and any board member 16 down are not set between case 11,9.In this case, when producing vibration on the case 11 externally, damping component 10a to 10d and can freely be shifted in X-direction (left and right directions), Y direction (vertical direction) and Z-direction (longitudinal direction) by the inside case 9 that they are connected to outside case 11, these axles are perpendicular to one another.Also have, these members can be along the direction of reversing around corresponding axle, be that direction shown in arrow a, b, the c freely is shifted among Fig. 8 A to 8C.

For by in structure shown in Fig. 8 A, adding structure shown in Fig. 8 B that upper plate member 15 obtains, along the direction of reversing around Y direction, be that the displacement of direction shown in the arrow b is restricted among Fig. 8 A.Also have, in structure shown in Fig. 8 C that the following board member 16 that is parallel to upper plate member 15 by interpolation in structure shown in Fig. 8 B obtains, direction of displacement has only vertical direction, this vertical direction is the direction that wherein causes upper plate member 15 and following board member 16 deflection deformations, thus with vibration limiting in Y direction only.

Material feeding apparatus according to all embodiment produces following beneficial effect as shown in the figure.

(1) vibration that is caused by the impulsive force that acts on the outside case 11 can and be passed to inner case 9 by damping component 10a to 10d vibration damping.Therefore, can prevent to be contained in damages such as material feeding means in the inner case 9 and relative signal of telecommunication transtation mission circuit effectively.

(2) constitute the upper plate member 15 of limitting the member that shakes and the free degree that following board member 16 will be delivered to the vibration of inner case 9 and be restricted to direction, i.e. a vertical direction.Therefore, because be contained in material feeding means in the inner case 9, can stably implement high-speed, high-precision material and present only at vertical vibration.

(3) when main edge by Fig. 1 in the impact that produces in by press device 4 of the vibration of the vertical direction shown in the arrow A when producing, inner case 9 and the material feeding means that is contained in wherein vertically vibrate.Here, as shown in Figure 1, L indicates home roll 5 and the center of secondary roller 6 and the distance between the metal die 7,8, and S indicates the amplitude of inner case 9 and material feeding means, has that the vibration of amplitude S is expressed from the next for influence (promptly presenting error) the Δ L of the feed direction of material 2 and very small.Therefore, material 2 accurately can be fed to press device 4.

ΔL＝L(1-cos(tan ^-1S/2L))

(4) limit the member that shakes structurally very simply only to use upper plate member 15 and following board member 16, be provided with and limit the member that shakes can not make the material feeding apparatus size become big.Also have, because do not have the sliding-contact part and need not to lubricate, so need not long-time maintenance.

Although the material according to the invention device for feeding comprises the roller feeder that uses home roll and secondary roller as shown in the figure, certain mechanism that also can adopt clamper system with fixed clamp device and mobile clamper etc. as feedthrough material.

Claims

1. material feeding apparatus comprises: inner case, and described inner case holds the material feeding means therein; Outside case, described outside case surrounds described inner case and is connected to described inner case by damping component; And the limit member that shakes, the described limit member that shakes is arranged between described inner case and the described outside case, is limited in a direction by the free degree that described damping component is passed to the vibration of described inner case will work as impact force action on described outside case the time.

2. material feeding apparatus according to claim 1 is characterized in that, the described limit free degree that member will be passed to the vibration of described inner case of shaking is limited in vertical direction.

3. as material feeding apparatus as described in the claim 2, it is characterized in that, described damping component comprises top damping component and bottom damping component, described top damping component is plugged between the roof of the roof of described outside case and described inner case, described bottom damping component is plugged between the diapire of the diapire of described outside case and described inner case, and, the described limit member that shakes comprises upper plate member and following board member, the upper surface of described upper plate member and lower surface are plugged between the described roof of the described roof of described outside case and described inner case, between the described diapire of the upper surface of described board member down and described diapire that lower surface is plugged in described outside case and described inner case.

4. material feeding apparatus according to claim 1 is characterized in that described outside case is fixed to the case of press device.

5. material feeding apparatus according to claim 1 is characterized in that described material feeding means comprises home roll and secondary roller, and described home roll and secondary roller are plugged between described home roll and the secondary roller material to carry described material, and described home roll is driven by servomotor.