KR20080094085A - Movement device - Google Patents

Abstract

The present invention provides a moving device that does not increase the preload pressure and also automatically eliminates the clearance between the contact and the support rail even if the contact or the support rail wears. The support rail 2, the movable body 4 which is guided to the support rail 2, and installed so as to be movable relative to the support rail 2, and the movable body 4 are installed on the support rail 2 from a plurality of directions. ), A plurality of contacts (5, 6, 7) in contact with each of the) and the movable body (4), at least one of the plurality of contacts (5, 6, 7) required force toward the support rail (2) In the moving device including the preloading means 8 which is always pressed by the preloading means, the preloading means 8 is connected to the support rail 2 with the moving body 4 interposed therebetween among the plurality of contacts 5, 6, 7. It is provided to press the contact body 7 which contact | connects the support rail 2 toward the support rail 2 from the substantially opposite side of the direction of the load applied, and is to contact the contact body 4 from the support rail 2 in the direction which separates it. Has a check means that does not move.

Description

Mobile device {MOVEMENT DEVICE}

The present invention provides a support rail fixed to a base body, a movable body guided to the support rail to be movable, a plurality of contact bodies provided on the movable body and contacting the support rail from a plurality of directions, respectively, and the movable body. The present invention relates to a moving device having a preloading means, which is provided to constantly press at least one of the plurality of contact members toward the support rail with a required force.

BACKGROUND ART A moving device having a movable body guided to and supported by a support rail has conventionally been preloaded between the support rail and the movable body in order to smoothly move the restraint of the movable body.

As an example of the conventional moving device, as described in Patent Literature 1, a ball is disposed between a support rail (orbital rail) and a moving object (sliding motion body), and the moving object can be moved using the rolling motion of the ball. (Patent Document 1 Paragraph [0002], [0019], Figs. 1 and 2). In this type of moving device, a means for fitting a ball having a diameter slightly larger than the gap size between the supporting rail and the moving body is adopted for applying the preload between the moving body and the supporting rail (Patent Document 1). Paragraph [0002]).

According to the preloading method in the moving device of Patent Literature 1, since the ball fills the clearance between the support rail and the moving body, the rattling can be suitably suppressed, for example, a heavy weight of several hundred kilograms or more. It can be used suitably also for the use of the conveyed object.

However, according to the preloading method of the type described in Patent Literature 1, since a metal ball having a diameter larger than the mutual gap size is inserted between the metal support rail and the moving body, the ball deforms and the rolling resistance In other words, the operation resistance is increased, so a large energy is required for driving, and the support rail, the moving body, and the ball require high wear resistance, and it is necessary to employ quenched steel or the like, and the manufacturing and processing cost of the device is increased. However, there is a problem that the weight of the device is increased or a higher driving energy is required with the weight. In addition, in order to reduce the rolling resistance of the ball and to prevent damage to the support rail, the moving body, and the ball, it is necessary to frequently and largely supply the lubricant of the ball, and there is a problem that the labor and cost of maintenance become large.

On the other hand, for example, in the case of transferring a low-weight transfer object of several hundred kilograms or less, it is not necessary to adopt a high-weight and high-cost transfer device such as the transfer device of Patent Document 1, for example, described in Patent Document 2 Pressurizes the contact element (lubrication element frame and rail lubrication element) with respect to the guide rail by means of a urging member (compression coil spring). The state can employ | adopt a moving device (patent document 2, FIG. 1, 2, paragraph 0078).

According to the preloading method of Patent Document 2, compared with the moving device of Patent Document 1, the operation resistance can be made smaller, and it is made of a lighter material to suppress manufacturing costs and the like, and to reduce maintenance labor and costs. There is an advantage that it can be suppressed.

Patent Document 1: Japanese Patent Application Laid-Open No. 2002-122136 (paragraph [0002], [0019], FIGS. 1 and 2)

Patent Document 2: Japanese Patent Application Laid-Open No. 7-54843 (Fig. 1, 2, paragraph [0078])

However, in the moving device described in Patent Literature 2, when a force greater than the pushing force of the pushing member (compression coil spring) is applied to the contact body (electric track lubrication element), the pushing member deforms and the moving body (guide carriage) There is a problem that rattling occurs in the operation of).

In order to solve this problem, a method of increasing the preload pressure by employing a pushing member having a pushing force larger than the maximum force expected to be caught by the contact body can be considered.

However, with it, the frictional resistance generated between the contact body and the support rail is increased, the movement resistance is increased, the pushing member is enlarged, and the driving energy is increased, the weight is increased, or the weight is increased with the increase in driving energy. It becomes necessary.

The present invention has been made to solve the above problems, and its object is to automatically eliminate the clearance between the contact and the support rail even if the contact and the support rail are worn without increasing the preload. It is to provide a mobile device that does not cause rattling.

The mobile device which concerns on this invention is equipped with the following structures, in order to solve the said subject. That is, a support rail, a movable body guided to the support rail to be movable relative to the support rail, a plurality of contact bodies provided on the movable body and contacting the support rail from a plurality of directions, respectively, and the movable body And a preloading means for constantly pressing at least one of the plurality of contacts with the necessary force toward the support rail, wherein the preloading means is arranged between the moving bodies among the plurality of contacts. And having a check means which is provided so as to press the contact body contacting the support rail from the substantially opposite side of the direction of the load applied to the support rail toward the support rail, and does not move the contact body in the direction away from the support rail. It features.

According to this, the preloading means provided in the movable body has a check means which presses a support rail, gives a preload, and does not move a contact body in the direction away from a support rail. Therefore, the clearance generated by abrasion or the like is appropriately filled, and the contact means does not separate from the support rails against the preload force by the check means, so that even if a large load is applied to the movable body, the contact body and the support rail Clearance does not occur between, and there is no rattling. In addition, the preload force provided by the preloading means is sufficient to always press the contact body toward the support rail so as to fill the clearance between the support rail and the contact body generated due to wear or the like. no need.

In addition, the clearance between the contact body and the support rail tends to occur on the opposite side of the direction of the load applied to the support rail of the support rail via the movable body, and the preloading means is connected to the support rail via the movable body. Since the contact body which contact | connects a support rail from the substantially opposite side of the direction of a load applied is pressed to a support rail, the clearance can be immediately filled.

The plurality of contact members are provided so as to be in contact with the support rails from three directions, respectively, and the contact surfaces of the support rails to which the plurality of contact members contact each other so that planes formed by the contact surfaces cross at an acute angle with each other. It is characterized by being formed.

Further, the movable body has a U-shaped cross-section that is substantially straight with respect to the moving direction of the movable body, and is in contact with the support rail from three directions near three ends of the U-shaped end portions and the intermediate portion. The said contact bodies are provided, respectively, One of the contact bodies provided in the vicinity of the said both ends is provided so that it may be pressed to the support rail by the said preload means.

According to this, a movable body can be provided so that a support rail may be taken out, and a movable body can be stably held by a support rail.

The preloading means may be rotatably installed with respect to the movable body, and the contact body is interlocked with the contact member in a position eccentrically from the rotational axis of the rotational movement or with the contact member interposed therebetween, thereby causing the contacting body to be moved. A rotational body disposed to move the contact rail with respect to the support rail, a first pushing member for applying a force to rotate the rotational body in the direction of contacting the contact body with the support rail, and fixed or hooked to the movable body Stop and cover at least a portion of an outer circumferential surface or an inner circumferential surface of the rotating body, wherein the first pushing member is along the direction of rotational movement of the rotating body due to the pushing force of the member, wherein the outer or inner circumferential surface of the rotating body An opposing portion having an opposing surface formed such that a distance from the gradual distance is gradually separated, and the outer circumferential surface or the inner side of the rotary motion body; Between the remyeon and the counter parts of the opposite surface, it characterized by having a spherical member disposed in contact with both.

According to this, the preloading means presses the contact body on the support rail by applying the preload by rotating the rotary motion by the pushing force of the first pushing member. In addition, in the case where a clearance occurs between the support rail and the contact body due to wear or the like, the rotating body is rotated by the pushing force of the first pushing member, and the contact body moves to fill the clearance. On the other hand, when the rotational movement body is supported by the contact rail between the support rails and the first pushing member is forced to reverse rotation movement against the pushing force of the member, the rotational movement of the rotating body and the opposing part retreats in the rotational movement direction. Therefore, since it is narrowly formed, a spherical member is inserted between the rotating body and the opposing part, and the reverse rotational movement of the rotating body is suppressed by the frictional force with the spherical member (reverse means).

Therefore, the clearance generated by abrasion or the like is appropriately filled, and since the rotary motion does not reversely rotate, a clearance is generated between the contact and the support rail even if a large force is applied to the contact and the rotary motion. There is no work, and therefore no rattling.

In addition, since the preload force exerted by the first pushing member is sufficient only to force the rotational movement to fill the clearance between the support rail and the contact body caused by wear or the like, the first pushing member It is not necessary to increase the force (preload).

In addition, the rotational body, the axis line is made of a rod coincides with the rotational axis, the opposing portion is made of a flange member into which the rod is inserted, the opposing surface is formed on the inner circumferential surface of the flange member It is characterized by that.

According to this, the preloading means can be made simple and compact.

The preloading means may have a second pushing member for applying a force to the spherical member in the opposite direction of the rotational movement direction of the rotational body.

According to this, since the spherical member is pressed by the member so that the spherical member is in contact with the rotating body and the opposing part at all times, when the rotating body is subjected to a force counter to the pushing force of the first pushing member, the reverse rotation of the rotating body is performed. Exercise can be regulated on the fly without room.

Further, the rotating body is characterized in that the groove portion is formed in the contact portion with the spherical member along the circumferential direction of the rotating body.

According to this, the position can be stabilized without the spherical member swinging.

In addition, the spherical member is characterized in that arranged in plurality in the rotational movement circumferential direction of the rotary body.

According to this, the force applied between the spherical member, the rotating body and the opposing part is distributed to the plurality of spherical members when the rotating body takes a force against the pushing force of the first pushing member. Damage to the opposing portion and the spherical member and excessive over-biting can be suppressed, and stable driving can be performed.

In addition, the opposing part is provided on the same axis as the rotary motion body so as to be relatively rotatable independently of the rotary motion body, and the preloading means allows the opposite part to rotate in the same direction as the rotational movement direction. A spiral spring having an opposite portion counter means for disallowing rotational movement in a reverse direction of the rotational movement direction, wherein the first pushing member has one end connected to the rotary body and the other end connected to the opposite portion; It is characterized by the).

According to this, a spiral spring (1st pushing member) can be wound up by performing operation which turns a counter part to the said rotational movement direction, and the pushing force of a spiral spring can be made to act on a rotating body.

In addition, the preloading means is characterized in that it has a release means for pressing the spherical member from the rear of the rotational movement direction and to move in the rotational movement direction.

According to this, the restriction | limiting of the rotational motion of a rotating body can be canceled by moving a spherical member in the said rotational movement direction by a release means.

Further, the preloading means is formed with a pressure contact portion located behind the rotational movement direction of the spherical member, and is installed on the same axis as the rotational movement body so as to be relatively rotatable independently of the rotational movement body, and in the rotational movement direction. It has a release member which moves a spherical member to the said rotational movement direction by a pressure contact part by rotational movement, The said opposing part hangs with a release member so that it may rotate integrally with a release member with a predetermined clearance, when the said release member is rotated. The first pushing member, wherein the other end is connected to the release member, is connected to the opposite portion with the release member interposed therebetween.

According to this, the restriction | limiting of the rotational motion of a rotating body can be canceled by moving a spherical member in the said rotational movement direction by a release member. Furthermore, by performing the operation of turning the release member in the rotational movement direction, the spiral spring (first pushing member) can be wound, and the pushing force of the spiral spring can be applied to the rotational motion. In addition, since the pushing force of the helical spring acts in the opposite direction to the rotational movement direction with respect to the release member, when the release member is not operated, the pressure contact portion of the release member can be held in a position where the spherical member is not pressed.

In addition, the contact member is characterized in that the roller device having a roller provided so as to be freely rotatable about an axis of rotation eccentric from the axis of rotation of the axis of rotation.

The support rail is made of a metal containing aluminum as a main component, and the roller is made of a synthetic resin material.

According to this, since the material of the support rail is harder than the material of the roller, the wear of the support rail can be reduced, and the roller is hardly reduced because it is a sticky material.

As a result of repeating the experiment with a combination of various materials, the inventor of the present invention constitutes the support rail with a metal mainly composed of aluminum as compared with the case of selecting a material having the same hardness as the support rail and the roller. According to the combination which consists of synthetic resins, it was found that both wear is suppressed small.

The support rail is formed by extruding a metal containing aluminum as a main component.

According to this, a support rail can be comprised simply and inexpensively.

Even if the support rail is formed by extrusion molding with low molding precision, in particular, the combination between the preloading means makes it possible to adequately fill the clearance between the support rail and the roller device, thereby suppressing rattling.

[Effects of the Invention]

According to the moving device of the present invention, there is no need to increase the preload, and even if the contact body or the support rail wears, there is an effect that the clearance between the contact body and the support rail is automatically eliminated so that no rattling occurs. . In particular, the clearance between the contact body and the support rail tends to occur on the opposite side of the direction of the load applied to the support rail of the support rail via the movable body, and the preloading means is connected to the support rail via the movable body. Since the contact body which contact | connects a support rail from the substantially opposite side of the direction of a load applied is pressed to a support rail, the clearance can be immediately filled.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the ejection apparatus A of the resin molded article which employ | adopted the moving apparatus which concerns on this invention.

Fig. 2 is a partially enlarged view of the takeout device A of the resin molded article.

3A and 3B are perspective views of the preload device.

4 is a side cross-sectional view of the preload device and the contact body.

5 is a cross-sectional view taken along line X-X of the preload device.

EMBODIMENT OF THE INVENTION Hereinafter, the best form for implementing the moving apparatus which concerns on this invention is demonstrated in detail based on an accompanying drawing.

FIG. 1: is perspective explanatory drawing of the extraction apparatus A of the resin molded article provided with the moving apparatus which concerns on this embodiment. FIG. 2 is a partially enlarged view of the horizontal moving device (to be described later) of the discharging device A of the resin molded article viewed in the longitudinal direction of the horizontal support rail (to be described later).

The ejecting device (A) of the resin molded article includes a chucking section (50) provided so as to be able to freely open and close and control the base body (1) and the resin molded article, and the chuck section (50) is horizontal and vertical. And a horizontal moving device and a vertical moving device for reciprocating movement in each direction.

(Horizontal shifter)

The horizontal moving device includes a horizontal support rail 2 attached to the base 1 so that the longitudinal direction is horizontal, a horizontal movable body 4 provided to be movable by being guided to the horizontal support rail 2, and a horizontal support. Roller apparatus 5, 6 as a contact body having rollers 5b, 6b, 7b which contact the guide surfaces 2a, 2b, 2c formed on the surface of the rail 2 and roll over the guide surfaces 2a, 2b, 2c. (7) (see FIG. 2) and a preloading device 8 as a preloading means which is provided on the horizontal moving body 4 and always presses the roller device 7 with the force required for the horizontal support rail 2.

The horizontal support rail 2 is formed by extrusion molding an aluminum alloy containing aluminum as a main component.

As shown in FIG. 2, the roller apparatus 5, 6 is rotatably provided with respect to the base part 5a, 6a fixed to the horizontal moving body 4, and the base part 5a, 6a, and is horizontally supported. It consists of rollers 5b and 6b which contact the guide surfaces 2a and 2b of the rail 2, respectively. In addition, the roller device 7 is rotatably provided with respect to the base part 7a and the base part 7a which were connected to the preloading apparatus 8 fixed to the horizontal moving body 4, and the horizontal support rail 2 It consists of the roller 7b which contacts the guide surface 2c of ().

The rollers 5b, 6b, and 7b are comprised by resin, have a ball bearing etc. inside, and can rotate smoothly.

As shown in FIG. 2, the horizontal movable body 4 is formed in a substantially U-shaped cross-section which is substantially straight in the cross-section with respect to the moving direction of the horizontal movable body 4 along the horizontal support rail 2. It is arranged to cover one side and part of the upper and lower surfaces of 2).

Moreover, the roller apparatuses 5 and 7 are provided in the horizontal movable body 4 in the vicinity of the both ends (upper and lower part) whose cross section is the said U-shape, respectively, and the roller apparatus 6 is provided in the middle part of a U-shape. Moreover, the roller device 7 which contacts the horizontal support rail 2 from the lower side among the roller devices 5 and 7 provided in the vicinity of the said both ends is pressed by the preloading device 8 to the horizontal support rail 2. It is installed.

Two roller devices 5 and 7 are arranged in the moving direction of the horizontal moving body 4 along the horizontal support rail 2, respectively, and the roller devices 6 and 6 are perpendicular to the moving direction. In addition to being arranged side by side in the direction (up-down direction), they are also arranged side by side in the moving direction, respectively, and a total of four are arranged.

Moreover, the roller apparatus 6 is provided so that it may contact the guide surface 2b of the perpendicular surface formed in one surface of the horizontal support rail 2. As shown in FIG.

The roller apparatus 5 is provided so that the roller apparatus 5 may contact the guide surface 2a formed in the upper side of the horizontal support rail 2 so that it may become acute with respect to the plane which the said vertical guide surface 2b makes.

The roller apparatus 7 is provided so that it may contact the guide surface 2c formed in the lower side of the horizontal support rail 2 so that it may become acute with respect to the plane which the said vertical guide surface 2b makes.

By this structure, the horizontal movable body 4 is provided so that the horizontal support rail 2 may be taken out by the roller apparatus 5, 6, 7.

As shown in FIG. 2, the preload device 8 is fixed to the horizontal moving body 4, and the roller device 7 is attached. The preload device 8 is disposed to penetrate through the opening formed in the horizontal movable body 4, and is fixed to the horizontal movable body 4 by attachment means such as stopping by the attachment portion 8a therebetween.

(Vertical shifter)

As shown in FIG. 1, the vertical moving device is attached to the horizontal moving body 4 and provided.

In the vertical moving device, the rail-shaped member 52 moves in the vertical direction relatively to the horizontal moving body 4. That is, in the structure of the vertical movement device, the rail member 52 is relatively movable in the vertical direction with respect to the plate member 54 attached to the horizontal moving body 4.

The vertical moving device has roller devices 56 and 57 with rollers provided on the plate-shaped member 54 fixed to the horizontal moving body 4, and a guide surface 52a in contact with the rollers. The rail-shaped member 52 which is guided and movable by the 56 and 57 and the horizontal moving body 4 are installed, and always presses the roller apparatus 56 and 57 with the required force toward the rail-shaped member 52. A preloading device, not shown, is provided.

In this vertical movement apparatus, roller apparatuses 56 and 57 are provided on the plate-shaped member 54 of the vertical movement apparatus, and the rail-shaped member 52 is guided to the roller apparatuses 56 and 57, and it is horizontal. The movable body 4 is provided so as to move in the vertical direction.

According to the configuration of the horizontal moving device and the vertical moving device, the weight of the vertical moving device is hung on the horizontal support rail 2 with the horizontal moving body 4 interposed therebetween. In other words, the weight of the vertical moving device is a load applied to the horizontal support rail 2 in the vertical direction from top to bottom.

Then, the preloading device 8 uses the roller supporter 7 which contacts the horizontal support rails 2 from the substantially opposite side (from below) in the direction of the load (direction from top to bottom), and the horizontal support rails 2. It is installed so as to push toward the side. In other words, the preload device 8 presses the roller device 7 on the horizontal support rail 2 in the direction opposite to the direction of the load.

According to this, the clearance between the roller apparatus 5, 6, 7 and the horizontal support rail 2 is horizontal support rail 2 of the horizontal support rail 2 with the horizontal moving body 4 in between. The preloading device 8 horizontally supports the roller device 7 in contact with the horizontal support rails 2 from the substantially opposite side (bottom side) of the load direction. Because we press on rail 2, the clearance can be filled immediately

The preload device 8 also has check means (not described later) which do not move the roller device 7 in the direction away from the horizontal support rail 2. Therefore, the clearance generated by abrasion or the like is appropriately filled, and since the roller device 7 does not separate from the horizontal support rail 2 by the check means, the horizontal moving body ( Even if a large load is applied to 4), a clearance does not occur between the roller apparatuses 5, 6, 7 and the horizontal support rail 2, and therefore there is no rattling. In addition, the preload force given by the preloading device 8 horizontally aligns the roller device 7 so as to fill the clearance between the horizontal support rail 2 and the rollers 5, 6, and 7 caused by wear or the like. It is not necessary to increase the preload because the force that is always pressed against the support rail 2 is sufficient.

(Preloader)

Next, the structure of the preloading apparatus 8 is explained in full detail.

3A and 3B are perspective views of the preloading device 8 and the roller device 7 attached to the preloading device 8, FIG. 4 is a side cross-sectional view thereof, and FIG. 5 is a XX cross-sectional view thereof {in FIG. Circumference 42 is omitted}.

As shown in FIGS. 3A, 3B, and 4, the preload device 8 is fixed to the attachment part 8a and the attachment part 8a for attaching the preload device 8 to the horizontal movable body 4. A rod 10 as a rotary body, which is inserted into the substantially same main body 12 and the main body 12 on the same axis, and is rotatably mounted with respect to the main body 12 with a bearing 11 interposed therebetween, A flange member 13 as an opposing portion disposed on the same shaft in the main body 12, into which the rod 10 is inserted, the release member 14 provided so as to be relatively rotatable independently of the rod 10, and one end ( 18a is connected to the release member 14, and the other end 18b is connected to the rod 10, and the rod 10 is rotated with respect to the main body 12 (horizontal moving body 4) in a predetermined direction. The first beauty pushing force is provided with a spiral spring 18 as a member, and three spherical members 20, 20, and 20 arranged between the main body 12 and the rod 10 to be in contact with both.

As shown in FIG. 4, the roller apparatus 7 has the base part 7a fixed to the rod 10 of the preloading apparatus 8, and the bearing part 7c with respect to the base part 7a. It is rotatably provided and consists of the roller 7b which contacts the said guide surface 2c of the horizontal support rail 2.

The roller device 7 has a bolt portion 7d extending from the base portion 7a along the rotation axis a of the roller 7b to a female thread portion 10d provided on one end surface of the rod 10. It is formulated and attached to the rod 10. The roller apparatus 7 is attached to the rod 10 so that the rotational axis a may be eccentric from the rotational movement axis b (the axis of the rod 10) when the rod 10 rotates. As a result, the rod 10 rotates so that the roller device 7 rotates about the rotational axis b which is eccentric with the rotational axis a, and thus the guide surface 2c of the horizontal support rail 2. Contact separation movement.

In the initial state, the rod 10 is set at a rotation angle such that the roller device 7 can move upward (a state in which the roller device 7 is not located at the top), and the preload device 8 is In this state, the roller 7b is disposed and fixed on the horizontal movable body 4 so as to contact the guide surface 2c of the horizontal support rail 2. As the rod 10 rotates in the predetermined direction, the roller device 7 is raised to be press-contacted to the guide surface 2c of the horizontal support rail 2.

The main body 12 is fixed to the attachment part 8a by the outer peripheral part. As the attachment part 8a is fixed to the horizontal movable body 4, the main body 12 is also fixed to the horizontal movable body 4.

The bearing 11 is provided between the main body 12 and the rod 10, and the rod 10 can be rotated smoothly in the main body 12.

The rod member 10 is inserted into the flange member 13 so as to be independently rotatable relative to each of the main body 12 and the rod 10.

The flange member 13 has one end side formed of a small diameter portion 13a extending along the rod 10, and on the other end side thereof, the outer circumferential wall is in contact with the inner circumference of the main body 12, and the inside thereof is It is formed by the large diameter part 13b which becomes a hollow shape which forms a predetermined clearance gap with the rod 10. As shown in FIG. The main body 12 is formed with a stepped portion 10a projecting inward along the stepped portion 13c connecting the small diameter portion 13a and the large diameter portion 13b of the flange member 13. A ratchet claw 16 is fixed to the opposing wall of the step portion 10a with the flange member 13. On the contact surface of the ratchet protrusion 16 of the flange member 13 (opposite side of the hollow portion in which the spherical member 20 is disposed), a plurality of uneven parts 13d on which the ratchet protrusion 16 is caught are provided, and the ratchet protrusion ( By the ratchet mechanism (reverse mechanism) which consists of 16 and the uneven part 13d, the flange member 13 can be rotated only in the predetermined rotation direction (the right rotation direction in FIG. 5).

In addition, the spherical member 20 is arrange | positioned so that it may contact both between the opposing surface 13e of the large diameter part 13b of the flange member 13, and the rod 10 and the rod 10. As shown in FIG. As shown in FIG. 5, the said opposing surface 13e of the large diameter part 13b of the flange member 13 follows the said rotatable direction (the right direction in FIG. 5) of the flange member 13, As shown in FIG. The distance from the outer periphery of (10) is gradually formed so that it spaces apart continuously. Moreover, the groove part 30 which contacts the outer peripheral surface of the rod 10 along the outer surface of each spherical member 20 and 20 is formed in the circumferential direction.

In addition, as shown in FIG. 5, the spherical member 20 has one end contacting the spherical member 20, and the other end of the second beauty supported by the stepped portion 13f of the inner circumferential wall of the flange member 13 By the spring 36 as a member, the reverse direction of the rotatable direction of the flange member 13 (the direction in which the distance between the outer circumferential surface of the rod 10 and the opposing surface 13e of the flange member 13 is narrowed. In FIG. 5, a force is applied in the left turning direction}.

As shown in FIG. 5, the spherical member 20 and the spring 36 are provided in three sets at intervals of 120 ° from each other in the circumferential direction of the rod 10.

According to the above configuration, the rod 10 can rotate freely in the right rotation direction in FIG. 5 with respect to the flange member 13, but when the rotational force in the reverse direction is generated, the rod in contact with the spherical member 20 ( Since the space | interval of 10) and the opposing surface 13e of the flange member 13 is narrowly formed toward the said reverse direction, the spherical member 20 is inserted between the rod 10 and the flange member 13, The reverse rotational motion is suppressed by the frictional force with the spherical member 20 (reverse means).

As shown in FIG. 4, the releasing member 14 is formed in a flange shape fitted to the same shaft on the rod 10, and is disposed adjacent to the axial direction of the axial direction of the flange member 13 and the rod 10. Thus, the rod 10 is installed to be relatively rotatable independently of the rod 10. One end of the release member 14 protrudes from the main body 12 so that the user can rotate the release member 14.

On the opposite side of the flange member 13 of the release member 14, a cap 22 is provided to block the hollow portion 14c of the release member 14. In addition, on the outer surface side of the cap 22, a flange member 13, a release member 14, and a snap ring 24 which prevents the cap 22 from coming off the rod 10 are provided. The cap 22 and the snap ring 24 are provided so as to be relatively rotatable with respect to the rod 10 and / or the release member 14, respectively, thereby preventing the relative rotation of the release member 14 with respect to the rod 10. I never do that.

The flange member 13 and the release member 14 include a recess 14b formed on the flange member 13 side of the release member 14 and a protrusion of the flange member 13 entering the recess 14b. 13g). The recessed part 14b and the protrusion part 13g are provided in the circumferential direction with a little margin, and are provided so that relative rotation movement with each other by a predetermined angle is possible.

The release member 14 is formed with a pressure contact portion 14a extending along the rod 10 toward the flange member 13 side. As shown in FIG. 5, the press contact part 14a is provided so that each may enter between each spherical member 20. As shown in FIG. The release member 14 is in the same direction as the direction in which the distance between the outer circumferential surface of the rod 10 and the opposing surface 13e of the flange member 13 is widened by the user, that is, in the right turning direction in FIG. 5. By the rotational movement, the pressure contact portion 14a can move the spherical member 20 in response to the pushing force of the spring 36 (release means). The clearance in the circumferential direction between the flange member 13 and the release member 14 engaged with each other is set such that the press contact portion 14a can press the spherical member 20. Then, when the pressure contact portion 14a presses the spherical member 20 and the release member 14 is rotated in the same rotational direction by the user beyond the clearance range, the projection 13g and the recess 14b. ), The release member 14 and the flange member 13 rotate integrally.

By moving the spherical member 20 against the pushing force of the spring 36 with the pressure contact portion 14a of the release member 14, the rod 10 is moved in the opposite direction to the flange member 13. Since the spherical member 20 is not caught between the rod 10 and the flange member 13 when the rotational movement is applied, the rotational movement of the rod 10 in the reverse direction is not suppressed. The suppression of the rotational movement of the rod 10 in the reverse direction is released (this is the action of the release means).

As shown in FIG. 4, one end 18a of the helical spring 18 is formed in a straight line, fitted into a cutout 10b formed in the axial direction of the rod 10, and connected to the rod 10. do. The other end 18 of the helical spring 18 is formed in a straight line, is fitted into the groove portion 14d formed in the axial direction of the release member 14, and is connected to the release member 14. Since the release member 14 and the flange member 13 are engaged by the recess 14b and the protrusion 13g as described above, the pushing force of the helical spring 18 is the flange member 13. And acts between the rod and the rod 10.

Next, an initial setting method of the preload device 8 will be described.

First, the user moves the release member 14 in the same direction as the direction in which the distance between the outer circumferential surface of the rod 10 and the opposing surface 13e of the flange member 13 increases, that is, the right turn direction in FIG. 5. Rotate According to this operation, first, the press contact portion 14a of the release member 14 is rotated in the right rotation direction with respect to the flange member 13 in the allowable range between the recessed portion 14b and the projected portion 13g. Press the member 20. Then, the spherical member 20 is moved so that the suppression of the rotational movement in the reverse direction with respect to the flange member 13 of the rod 10 is released.

Thereafter, by a new rotation operation of the release member 14 by the user, the flange member 13 engaged by the recess 14b and the protrusion 13g is integrally rotated together with the release member 14. In addition, with the helical spring 18 connected to the release member 14 therebetween, the rod 10 also has a rotational force in the same direction as the release member 14.

Then, with the rotational movement of the rod 10, the roller device 7 attached eccentrically with respect to the rotational movement axis of the rod 10 is raised, so that the roller 7b is the guide surface of the horizontal support rail 2 ( Contact 2c).

In this state in which the roller device 7 contacts the horizontal support rail 2 and the rod 10 cannot rotate more than this in the same direction, when the release member 14 is further rotated, the spiral spring 18 This wound is applied to the rod 10 with a pushing force in the same direction.

Then, when the user stops the rotation operation of the release member 14 and releases the release member 14, the release member 14 is rotated to the release member 14 by the pushing force of the wound spiral spring 18. The rotational force in the reverse direction acts on one rotational direction (right rotational direction). By this force, the release member 14 is rotated in the opposite direction, and the press contact portion 14a is moved away from the spherical member 20. Then, the spherical member 20 returns to the position which contacts both the outer peripheral surface of the rod 10 and the opposing surface 13e of the flange member 13 by the pushing force of the spring 36. As a result, the rod 10 is prevented from rotating in the opposite direction with respect to the flange member 13 (checking means).

In addition, after the release member 14 rotates in the reverse direction by the margin, the pushing force in the reverse direction of the helical spring 18 is engaged with the release member 14 with the release member 14 therebetween. It acts on the flange member 13 made. However, since the rotation of the said reverse direction is suppressed by the ratchet mechanism, the flange member 13 does not rotate in the said reverse direction (reverse means).

Therefore, the pushing force of the helical spring 18 acts as a force for rotating the rod 10 in the rotational direction, with a preload applied to the horizontal support rail 2 with the roller device 7 interposed therebetween. You lose.

According to the horizontal moving apparatus which concerns on this embodiment, when the clearance generate | occur | produces between the guide surface 2c of the horizontal support rail 2 and the roller 7b of the roller apparatus 7 by abrasion etc., the helical spring 18 The rod 10 and the roller device 7 are rotated by the mean force, and the roller device 7 moves (raises) to fill the clearance. On the other hand, when the force of pressing the roller device 7 from the horizontal support rail 2 during the movement of the horizontal movable body 4, the distance between the rod 10 and the flange member 13 in contact with the spherical member 20 Since the rod 10 is formed to be narrow in the opposite direction of the pushing direction, the spherical member 20 is sandwiched between the rod 10 and the flange member 13, and the friction force with the spherical member 20 is reduced. Reverse rotation of the rod 10 is suppressed.

In this way, the clearance between the horizontal support rail 2 and the roller device 7 generated by wear or the like is appropriately filled by the rotational movement of the rod 10, and the rod 10 is reversely rotated. Therefore, even if a large force is applied to the roller device 7 from the horizontal support rail 2 during the movement of the horizontal movable body 4, a clearance is generated between the roller device 7 and the horizontal support rail 2. There is no work, and therefore no rattling. In addition, the preload force given by the helical spring 18 is sufficient only by the force which rotates the rod 10 so that the clearance between the horizontal support rail 2 and the roller 7b which may arise by abrasion etc. may be filled. Therefore, the pushing force (preload) of the helical spring 18 does not need to be made large enough to counter the maximum force that can be applied to the horizontal moving body 4.

In addition, since the spherical member 20 is maintained in the position which contacts the rod 10 and the flange member 13 by being pressed against the spring 36, the pushing force of the helical spring 18 to the rod 10 is carried out. When the reverse force is applied, the reverse rotational movement of the rod 10 can be regulated on the fly.

In addition, since the spherical member 20 is arranged and arrange | positioned in the circumferential direction of the outer periphery of the rod 10 (three in this embodiment), the pushing force of the helical spring 18 to the rod 10 When a backing force is applied, the force applied between the spherical member 20, the rod 10, and the flange member 13 is distributed to the plurality of spherical members 20. Therefore, the force applied between the individual spherical member 20, the rod 10, and the flange member 13 is dispersed, and such damage and excessive sticking can be suppressed and stable driving can be performed.

Further, since the other end 18b of the helical spring 18 is connected to the flange member 13 with the release member 14 interposed therebetween, the flange member 13 is rotated through the release member 14. By performing the operation to turn in the movement direction, the spiral spring 18 can be wound to apply the pushing force of the spiral spring 18 to the rod 10.

Further, by moving the spherical member 20 in the rotational movement direction by the pressure contact portion 14a of the release member 14, the restriction of the rotational movement of the rotational body can be released.

Furthermore, the flange member 13 is engaged with the release member so that the flange member 13 is integrally rotated with the release member 14 with a predetermined margin when the release member 14 is rotated.

For this reason, by performing the operation of turning the release member 14 in the rotational movement direction, the reverse restraint of the rod 10 can be released, and the spiral spring 18 can be wound by further turning the release member 14. have. In addition, since the pushing force of the helical spring 18 acts in the reverse direction of the rotational movement direction with respect to the release member 14, the pressure contact portion of the release member 14 when the release member 14 is not operated. 14a can be made to stand in the position which does not press the spherical member 20. FIG.

By this structure, the preloading device 8 of the horizontal moving device according to the present embodiment is excellent in operability and maintainability.

On the other hand, in this embodiment, although the rod 10 as a rotating body of the preloading apparatus 8 is directly connected to the roller apparatus 7 as a contact body, it is not limited to this structure.

For example, another transmission member may be provided between the rotary motion member and the contact member to indirectly press the contact member with the transmission member interposed therebetween.

The present invention can be applied not only to a moving device in a device for taking out a resin molded article, but also to any moving device including a moving body which is guided to a support rail and moves relative to the support rail.

Furthermore, not only the moving device which moves on a linear track | orbit, but employ | adopted, for example, the curved support rail can comprise the moving device which can curve the moving body.

In addition, although this embodiment is a moving device which a horizontal movable body moves with respect to the horizontal support rail fixed to the base body, this invention is not limited to what the support rail is fixed to the base body, For example, a mobile body is a base body. It includes all the moving devices fixed to the sieve and the moving body and the support rail relatively move, such as a moving device configured to move the support rail relative to the base body.

Claims (14)

Support Rail, A movable body guided to the support rail and installed to be movable relative to the support rail; A plurality of contacts installed on the movable body and respectively contacting the support rails from a plurality of directions; In the moving device is provided on the moving body, and provided with a preload means for always pressing at least one of the plurality of contact members toward the support rail with the necessary force, The preload means, It is provided so that the contact body which contact | connects a support rail from the substantially opposite side of the direction of the load applied to the said support rail through the said moving body among the said some contact bodies toward a support rail, And a check means which does not move the contact body in a direction away from the support rail. The said plurality of contact bodies are provided so that the said contact rails may contact | connect a 3 direction, respectively, Each contact surface of the said support rail which the said some contact body contacts is formed so that the plane which each contact surface may make may mutually cross at an acute angle. The method of claim 2, wherein the moving body, The shape of the cross section which is perpendicular to the moving direction of the movable body is formed almost in a U shape, The contact bodies which are in contact with the support rails from three directions are respectively provided at three locations near the both ends and the intermediate portion of the U-shape, so that one of the contacts provided near the both ends is pressed against the support rail by the preloading means. Mobile device, characterized in that installed. The said preloading means in any one of Claims 1-3, The contact body is installed so as to be rotatable with respect to the movable body, and the contact body is rotated in connection with the contact member directly or with a transmission member at an eccentric position from the rotational axis of the rotary motion, so that the contact body moves with respect to the support rail. A rotary body arranged to A first pushing member for applying a force to rotate the rotational body in a direction of contacting the contact body with the support rail; The outer side of the rotating body fixed or locked to the moving body to cover at least a portion of the outer or inner circumferential surface of the rotating body, and along the direction of rotational movement of the rotating body by the pushing force of the first pushing member An opposing portion having an opposing surface formed such that a distance from the circumferential surface or the circumferential surface is gradually separated from each other; And a spherical member disposed between the outer circumferential surface or the inner circumferential surface of the rotating body and the opposing surface of the opposing portion so as to be in contact with both. 5. The rotating body according to claim 4, wherein the rotating body comprises a rod whose axis coincides with the rotating shaft. The opposite portion is made of a flange member into which the rod is inserted, The opposing surface is formed on the inner circumferential surface of the flange member. The moving device according to claim 4 or 5, wherein the preloading means has a second pushing member for applying the force to the spherical member in the opposite direction of the rotational movement direction of the rotary motion body. The moving device according to any one of claims 4 to 6, wherein the rotating body is provided with a groove in a contact portion with the spherical member along the circumferential direction of the rotating body. The moving device according to any one of claims 4 to 7, wherein the spherical members are arranged in a row in the circumferential direction of rotation of the rotating body. The said opposing part is provided in the same axis as the said rotary motion body so that relative rotation is possible independently of a rotary motion body, The preloading means has an opposite portion counter means for allowing the opposite portion to rotate in the same direction as the rotational movement direction but not to allow rotational movement in the reverse direction of the rotational movement direction. The first pushing member is a moving device, characterized in that one end is connected to the rotating body, the other end is a spiral spring connected to the opposite portion. The moving device according to any one of claims 4 to 9, wherein the preloading means has release means for pressing the spherical member from the rear of the rotational movement direction to move in the rotational movement direction. 10. The method of claim 9, wherein the preloading means is provided with a pressure contact portion located behind the rotational movement direction of the spherical member, and is installed on the same axis as the rotational movement body to be relatively rotatable independently of the rotational movement body. It has a release member for moving the spherical member in the rotational movement direction by the pressure contact portion by the rotational movement in the rotational movement direction, The opposing portion is engaged with the release member such that when the release member is rotated, the release member is integrally rotated with the release member with a predetermined margin. The first pushing member, wherein the other end is connected to the release member, the moving device, characterized in that connected to the opposite portion with the release member therebetween. 12. The movement according to any one of claims 1 to 11, wherein the contact member is a roller device having a roller provided so as to be freely rotatable about an axis of rotation eccentric from the axis of rotation of the axis of rotation. Device. The method according to claim 12, wherein the support rail is made of a metal containing aluminum as a main component, The roller is made of a synthetic resin material. The moving device according to claim 12 or 13, wherein the support rail is formed by extruding a metal containing aluminum as a main component.

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