JP4617113B2 - Mobile device - Google Patents

Description

  The present invention relates to a moving device including a moving body that is guided and supported by a support rail, and a roller device that contacts the support rail.

  As an example of a conventional moving device, there is a moving device in which a roller device (guide roller) is provided between a moving body (guide carriage) and a support rail (guide rail) as described in Patent Document 1. (Patent Document 1 FIG. 1, paragraphs 0037 and 0074).

In the moving device in which the support rail and the moving body are in contact with each other via the roller device, such as the moving device described in Patent Document 1, there is a problem that it is difficult to suppress backlash in the axial direction of the roller of the roller device. is there.
In this regard, in the moving device described in Patent Document 1, the support rail is provided with a circular cross-sectional rod, and the roller has a concave peripheral surface so as to match the shape of the outer peripheral surface of the circular cross-sectional rod. (Patent Document 1 FIG. 1, paragraph 0037). Thereby, the play in the axial direction of the roller is reduced, and the play in that direction is suppressed.
JP 7-54843 A (FIG. 1, paragraphs 0037 and 0074)

  However, like the moving device described in Patent Document 1, when the roller of the roller device is formed in a concave shape along the outer peripheral surface of the cross-section circular rod, as shown in the cross-sectional explanatory view of FIG. Depending on the position on the outer peripheral surface of the roller 90, the distance (radius) from the rotation axis O of the roller 90 varies as r1 and r2. Therefore, when the roller 90 rotates at a predetermined angular velocity as the moving body moves linearly, the peripheral speed of the roller 90 can vary depending on the position on the outer peripheral surface of the roller 90, and relative to the support rail (cross-section circular rod) 92. The speed is different. Therefore, on the outer peripheral surface of the roller 90, there is a position where slip occurs between the support rail (cross-section circular rod) 92, the operation resistance increases, and excessive wear of the roller 90 and the support rail 92 is caused. There are challenges.

  Therefore, the present invention has been made to solve the above-mentioned problems, and the object of the present invention is to suitably suppress the backlash in the axial direction of the roller in the moving device using the roller device, reduce the operating resistance, and reduce the wear of the roller. To provide fewer mobile devices.

In order to solve the above problems, a mobile device according to the present invention has the following configuration. That is, a support rail fixed to the base, a movable body guided by the support rail and movably provided, and a roller device having a roller that contacts the guide surface of the support rail and rolls on the guide surface And a preload means that is provided on the movable body and constantly presses the roller device toward the support rail with a required force. A guide for guiding the movable body on the guide surface of the support rail. Grooves are formed along the direction, and on the outer peripheral surface of the roller, projecting peripheral portions having a height lower than the depth of the groove portions that enter the groove portions are formed, and the groove portions and the projecting peripheral portions are formed on the grooves. In the both edge portions where the groove portion and the projecting peripheral portion come into contact so that both the edge portions and both edge portions of the projecting peripheral portion contact each other, and the outer surface of the projecting peripheral portion does not contact the inner surface of the groove portion. , Of the guide surface and the groove Angle between the surface, characterized in that it is formed to be smaller than the angle formed between the outer surface of the guide surface and the circular projection.
According to this, the groove part of a support rail and the protrusion peripheral part of a roller contact | abut at both both edge parts, and it is formed so that the outer side surface of a protrusion peripheral part may not contact | abut the inner surface of a groove part. Therefore, since the support rail and the roller abut only on both edges of the groove portion and the projecting peripheral portion, and on the guide surface of the support rail and the outer peripheral surface of the roller, from the rotation axis of the roller of the abutment portion. The distance (radius) becomes uniform, and no slip occurs due to the difference in the peripheral speed of the outer peripheral surface of the roller between the roller and the support rail. In addition, since both edge portions of the groove portion and the projecting peripheral portion are in contact with each other, the backlash in the axial direction of the roller is suitably suppressed.

A support rail fixed to the base; a movable body guided by the support rail and movably provided; and a roller device having a roller that contacts the guide surface of the support rail and rolls on the guide surface. And a preload means that is provided on the movable body and constantly presses the roller device toward the support rail with a required force. A guide for guiding the movable body on the guide surface of the support rail. A ridge is formed along the direction, and a groove deeper than the height of the ridge, into which the ridge enters, is formed on the outer circumferential surface of the roller. In the both edge portions where the ridge portion and the groove portion abut so that both edge portions of the groove portion and both edge portions of the groove portion abut, and the outer surface of the ridge portion does not abut against the inner side surface of the groove portion. The guide surface and the inner surface of the groove Be the angle, characterized in that it is formed to be smaller than the angle formed between the outer surface of the guide surface and the protrusions.
According to this, the protrusion of the support rail and the groove of the roller are in contact with each other at both edges, and the outer surface of the protrusion is not in contact with the inner surface of the groove. Therefore, since the support rail and the roller abut only on both edges of the ridge portion and the groove portion, and on the guide surface of the support rail and the outer peripheral surface of the roller, from the rotation axis of the roller of the abutment portion. The distance (radius) becomes uniform, and no slip occurs due to the difference in the peripheral speed of the outer peripheral surface of the roller between the roller and the support rail. In addition, since both edge portions of the ridge portion and the groove portion are in contact with each other, backlash in the axial direction of the roller is suitably suppressed.

Further, the preload means includes a biasing member that biases the roller device toward the support rail, and a check means that does not move the roller device in a direction away from the support rail. To do.
According to this, the preload means presses the roller device against the support rail by the urging force of the urging member to apply the preload. Further, when a clearance is generated between the support rail and the contact body due to wear or the like, the roller device moves toward the support rail by the urging force of the urging member to fill the clearance. On the other hand, when a reverse force is applied from the support rail to the roller device against the urging force of the urging member, the reverse movement of the roller device is suppressed by the check means.

Further, the support rail is made of a metal mainly composed of aluminum, 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 a sticky material, so it is difficult to reduce.
As a result of repeating the experiment by combining various materials, the inventor of the present application, as compared with the case where a material having the same degree of hardness is selected for the support rail and the roller, the support rail is made of a metal mainly composed of aluminum. And it discovered that according to the combination which comprises a roller with a synthetic resin, both wear can be suppressed small.

The support rail is formed by extruding a metal mainly composed of aluminum.
According to this, the support rail can be configured easily and inexpensively.
Even if the support rail is formed by extrusion molding with low molding accuracy, the clearance between the support rail and the roller device can be suitably filled, and play can be suppressed, particularly in combination with the preloading means.

In addition, a roller device provided on the base, a guide surface that contacts the roller of the roller device, a rail-like moving body that is provided to be movable while being guided by the roller device, and provided on the base. In a moving device comprising a preload device that constantly presses the roller device toward the moving body with a required force, a groove portion is formed on the guide surface of the moving body along a guiding direction by the roller device, On the outer peripheral surface of the roller, a projecting peripheral portion having a height lower than the depth of the groove portion, which enters the groove portion, is formed. The guide surface and the inner surface of the groove portion at the both edge portions where the groove portion and the projecting peripheral portion contact each other so that the outer surface of the projecting peripheral portion does not contact the inner surface of the groove portion. The angle formed by the guide surface and protrusion Characterized in that it is formed to be smaller than the angle formed between the outer surface.
According to this, the groove part of a moving body and the protrusion part of a roller contact | abut both both edge parts, and it is formed so that the outer surface of a protrusion part may not contact | abut the inner surface of a groove part. Therefore, since the moving body and the roller are in contact with each other only at both edges of the groove portion and the projecting peripheral portion, and at the guide surface of the moving body and the outer peripheral surface of the roller, from the rotation axis of the roller of the contact portion. The distance (radius) becomes uniform, and no slip occurs due to the difference in the peripheral speed of the outer peripheral surface of the roller between the roller and the moving body. In addition, since both edge portions of the groove portion and the projecting peripheral portion are in contact with each other, the backlash in the axial direction of the roller is suitably suppressed.

In addition, a roller device provided on the base, a guide surface that contacts the roller of the roller device, a rail-like moving body that is provided to be movable while being guided by the roller device, and provided on the base. In the moving device including a preload device that constantly presses the roller device toward the moving body with a required force, a protrusion is formed on the guide surface of the moving body along a guide direction by the roller device. A groove portion deeper than the height of the ridge portion into which the ridge portion enters is formed on the outer peripheral surface of the roller, and the ridge portion and the groove portion are formed on both edges of the ridge portion and the groove portion. The guide surface and the inner side surface of the groove portion at the both edge portions where the ridge portion and the groove portion abut so that the edge portion abuts and the outer surface of the ridge portion does not contact the inner surface of the groove portion. The angle between the guide surface and the ridge Characterized in that it is formed to be smaller than the angle between faces.
According to this, the protrusion of the moving body and the groove of the roller are in contact with each other at both edges, and the outer surface of the protrusion is not in contact with the inner surface of the groove. Therefore, since the moving body and the roller abut only on both edges of the ridge portion and the groove portion, and on the guide surface of the moving body and the outer peripheral surface of the roller, from the rotation axis of the roller of the abutting portion. The distance (radius) becomes uniform, and no slip occurs due to the difference in the peripheral speed of the outer peripheral surface of the roller between the roller and the moving body. In addition, since both edge portions of the ridge portion and the groove portion are in contact with each other, backlash in the axial direction of the roller is suitably suppressed.

The preload means includes a biasing member that biases the roller device toward the moving body, and a check means that does not move the roller device in a direction away from the moving body. To do.
According to this, the preload means presses the roller device against the moving body by the urging force of the urging member and applies the preload. When a clearance is generated between the moving body and the contact body due to wear or the like, the roller device moves toward the moving body by the urging force of the urging member to fill the clearance. On the other hand, when a reverse force is applied from the moving body to the roller device against the urging force of the urging member, the reverse movement of the roller device is suppressed by the check means.

Further, the moving body is made of a metal mainly composed of aluminum, and the roller is made of a synthetic resin material.
According to this, since the material of the moving body is harder than the material of the roller, it is possible to reduce the wear of the moving body, and it is difficult to reduce because the roller is a sticky material.
The inventor of the present application, as a result of repeating the experiment with a combination of various materials, the moving body is composed of a metal whose main component is aluminum as compared with the case where a material having the same degree of hardness is selected for the moving body and the roller. And it discovered that according to the combination which comprises a roller with a synthetic resin, both wear can be suppressed small.

The moving body is formed by extruding a metal mainly composed of aluminum.
According to this, a mobile body can be comprised simply and cheaply.
Even when the movable body is formed by extrusion molding with low molding accuracy, the clearance between the movable body and the roller device is preferably buried and the play can be suppressed particularly by the combination with the preloading means.

  According to the moving device of the present invention, the play in the axial direction of the roller can be suitably suppressed, and there is an effect that the operation resistance is small and the wear of the roller can be suppressed to a low level.

  The best mode for carrying out a mobile device according to the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a perspective explanatory view of a resin molded product take-out apparatus A provided with a moving apparatus according to the present embodiment. FIG. 2 is a partially enlarged view of the horizontal movement device (described later) of the resin molded product take-out device A viewed from the longitudinal direction of the horizontal support rail (described later).

  The resin molded product take-out apparatus A has a base 1, a chuck portion 50 provided so as to be able to be opened and closed for holding the resin molded product, and a reciprocating movement control of the chuck portion 50 in the horizontal direction and the vertical direction, respectively. A horizontal movement device and a vertical movement device.

(Horizontal moving device)
The horizontal movement device includes a horizontal support rail 2 attached to the base body 1 so that the longitudinal direction thereof is horizontal, a horizontal moving body 4 provided so as to be movable while being guided by the horizontal support rail 2, and a horizontal support rail 2. Roller devices 6 and 7 (see FIG. 2) having rollers 6b and 7b that roll on the guide surface 2a in contact with the guide surface 2a formed on the upper and lower surfaces, and the horizontal moving body 4, and the roller device 7 And a preloading device 8 as a preloading means for always pressing the horizontal support rail 2 with a required force.

  The horizontal support rail 2 is formed by extruding an aluminum alloy mainly composed of aluminum.

As shown in FIG. 2, the roller devices 6, 7 are provided with base portions 6 a, 7 a fixed to the plate-like horizontal moving body 4, and rotatably provided with respect to the base portions 6 a, 7 a, and guide the horizontal support rail 2. It consists of rollers 6b and 7b that contact the surface 2a. The rollers 6b and 7b are made of resin, have a ball bearing bearing or the like inside, and can rotate smoothly.
Two roller devices 6 are provided before and after the horizontal support rail 2 in the traveling direction, and the roller device 7 is provided near the middle of the two roller devices 6 on the opposite side to the horizontal support rail 2.

  As shown in FIG. 2, the preload device 8 is fixed to a plate member 4b fixed to the horizontal movement device 4 via a rod 4a. A roller device 7 is attached to the preload device 8. The preloading device 8 is disposed so as to pass through an opening formed in the plate member 4b, and is fixed to the plate member 4b via a mounting portion 8a by mounting means such as screws.

(Vertical moving device)
The vertical moving device is provided on the horizontal moving body 4. That is, the horizontal moving body 4 is a base body of the vertical moving device.
In the vertical movement device, a rail-like member 52 having the same shape as the horizontal support rail 2 in the horizontal movement device is a vertical moving body that moves in the vertical direction. That is, the configuration of the vertical movement device is substantially the same as that of the horizontal movement device, but the relationship between the member fixed to each base and the moving member (moving body) is reversed.

The vertical movement device includes roller devices 56 and 57 having rollers and a guide surface 52a that comes into contact with the rollers, and is guided by the roller devices 56 and 57 and is provided on the horizontal moving body 4 as the base. A rail-like vertical moving body 52 provided as possible and a preloading device (not shown) that is provided on the horizontal moving body 4 as a base and constantly presses the roller devices 56 and 57 toward the vertical moving body 52 with a required force. Prepare.
In this vertical moving device, roller devices 56 and 57 are provided on a horizontal moving body 4 as a base of the vertical moving device, and a rail-like vertical moving body 52 is guided by the roller devices 56 and 57 to move horizontally. It is provided to move in the vertical direction with respect to the body 4.

  The configuration of the vertical movement device is such that the relationship between the member fixed to each base and the moving member (moving body) is reversed compared to the horizontal movement device, and the other configurations are substantially the same. Since they are the same, only the configuration of the horizontal movement device will be described below.

(Groove and protrusion)
Next, the groove part formed in the horizontal support rail 2 and the protrusion part formed in the rollers 6b and 7b of the roller devices 6 and 7, which are features of the present invention, will be described with reference to FIG. FIG. 3 is an enlarged view of a contact portion between the horizontal support rail 2 and the roller 7b (or roller 6b).

  A plurality of grooves 40 are formed on the guide surface 2 a of the horizontal support rail 2 along the guide direction for guiding the horizontal moving body 4. On the other hand, a plurality of projecting peripheral portions 42 having a height lower than the depth of the groove portion 40 that enter the groove portion 40 are formed on the outer peripheral surface of the roller 7b.

The groove part 40 and the projecting peripheral part 42 are formed to have the same width so that both edge parts 40a, 40b of the groove part 40 and both edge parts 42a, 42b of the projecting peripheral part 42 abut.
In the present specification and claims, the edges 40 a and 40 b of the groove 40 are the opening edges of the groove 40. The edges 42a and 42b of the protrusion 42 are the basic edges where the protrusion 42 starts to rise.

  Further, the groove portion 40 and the projecting peripheral portion 42 have both edge portions 40a and 40b on which the groove portion 40 and the projecting peripheral portion 42 abut so that the outer surface 42c of the projecting peripheral portion 42 does not abut on the inner surface 40c of the groove portion 40. In both edge portions 42a and 42b, the angle θ1 formed by the guide surface 2a and the inner surface 40c of the groove 40 is formed to be smaller than the angle θ2 formed by the guide surface 2a and the outer surface 42c of the projecting peripheral portion 42. . The outer surface 42c of the projecting circumferential portion 42 is formed to be tapered with respect to the shape of the inner side surface 40c of the groove portion 40 so that the outer surface 42c of the projecting circumferential portion 42 does not contact the inner side surface 40c of the groove portion 40. Yes.

In addition, the shape of the groove part 40 and the protrusion periphery part 42 does not necessarily need to form so that a cross-sectional edge part may become linear form like this Embodiment.
The groove portion and the protrusion portion are formed so that both edges of the groove portion and both edges of the protrusion portion are in contact with each other, and the guide surface is provided so that the outer surface of the protrusion portion does not contact the inner surface of the groove portion. The angle formed by 2a and the inner side surface of the groove portion may be formed so as to be smaller than the angle formed by the guide surface 2a and the outer surface of the projecting circumferential portion.
For example, the cross-sectional edge of the groove or protrusion may be formed in an arc shape or the like.

(Preload device)
Next, the configuration of the preload device 8 will be described in detail.
4A and 4B are perspective views of the preloading device 8 and the roller device 7 attached to the preloading device 8, FIG. 5 is a side sectional view thereof, and FIG. 6 is a sectional view taken along line XX. Yes (in FIG. 4, the protrusion 42 is omitted).

  As shown in FIGS. 4 (a), 4 (b) and 5, the preloading device 8 includes the mounting portion 8a for mounting the preloading device 8 on the horizontal moving body 4, and a substantially cylindrical shape fixed to the mounting portion 8a. A main body 12, a rod 10 that is inserted coaxially into the main body 12, and is provided so as to be rotatable with respect to the main body 12 via a bearing 11, and is disposed coaxially within the main body 12. 10 is inserted, a flange member 13 as an opposing portion, a release member 14 provided so as to be relatively rotatable independently of the rod 10, one end 18 a is connected to the release member 14, and the other end 18 b is connected to the rod 10. A spiral spring 18 as a first urging member that is connected to urge the rod 10 to rotate in a predetermined direction with respect to the main body 12 (horizontal moving body 4), and between the main body 12 and the rod 10. , Three arranged to contact both And a spherical member 20, 20, 20 of.

  As shown in FIG. 5, the roller device 7 is provided with a base portion 7 a fixed to the rod 10 of the preload device 8, and is rotatable with respect to the base portion 7 a via a bearing 7 c. It comprises a roller 7b that comes into contact with the inner ceiling surface of the character portion 2a.

The roller device 7 is attached to the rod 10 by bolting a bolt portion 7 d extending from the base portion 7 a along the rotation axis a of the roller 7 b to a female screw portion 10 d provided on one end surface of the rod 10. The roller device 7 is attached to the rod 10 so that the rotation axis a thereof is eccentric from the rotation axis b (the axis of the rod 10) when the rod 10 rotates. Accordingly, when the rod 10 is rotated, the roller device 7 is rotated around the rotation axis b that is eccentric from the axis a, and moves toward and away from the guide surface 2 a of the support rail 2. Become.
In the initial state, the rod 10 is set to a rotation angle at which the roller device 7 can move upward (a state in which the roller device 7 is not located on the uppermost side). In this state, the preload device 8 It arrange | positions and is fixed on the leg part 4a so that it may contact | abut to the guide surface 2a of the support rail 2. As shown in FIG. Then, as the rod 10 rotates in a predetermined direction, the roller device 7 rises and is pressed against the guide surface 2 a of the support rail 2.

The main body 12 is fixed to the attachment portion 8a at the outer peripheral portion thereof. By fixing the attachment portion 8 a to the leg portion 4 a of the horizontal moving body 4, the main body 12 is also fixed to the horizontal moving body 4.
A bearing 11 is provided between the main body 12 and the rod 10, and the rod 10 can be smoothly rotated in the main body 12.

The flange member 13 is provided such that the rod 10 is inserted therein and is relatively rotatable relative to each of the main body 12 and the rod 10.
One end side of the flange member 13 is formed in a small-diameter portion 13 a extending along the rod 10, and the other end side of the flange member 13 is in contact with the inner periphery of the main body 12, and the inside thereof is a predetermined gap between the rod 10. It is formed in the large-diameter portion 13b that is hollow to form The main body 12 is formed with a stepped portion 10a protruding inward along a 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 wall of the stepped portion 10a facing the flange member 13. The contact surface of the flange member 13 with the ratchet claw 16 (opposite surface of the hollow portion on which the spherical member 20 is disposed) is provided with a plurality of uneven portions 13d on which the ratchet claw 16 is caught. The flange member 13 can be rotated only in a predetermined rotation direction (right rotation direction in FIG. 6) by the ratchet mechanism (check mechanism).

  In addition, a spherical member 20 is disposed between the rod 10 and the opposed surface 13e of the large-diameter portion 13b of the flange member 13 between the rod 10 and the opposite surface 13e. As shown in FIG. 6, the facing surface 13 e of the large-diameter portion 13 b of the flange member 13 is formed along the outer peripheral surface of the rod 10 along the rotatable direction of the flange member 13 (the right-handed rotation direction in FIG. 6). Are formed so as to be gradually separated from each other. Moreover, the groove part 30 contact | abutted along the outer surface of each spherical member 20 and 20 is formed in the outer peripheral surface of the rod 10 in the circumferential direction.

  Further, as shown in FIG. 6, the spherical member 20 has a spring 36 as a second urging member whose one end abuts on the spherical member 20 and whose other end is supported by a step portion 13 f of the inner peripheral wall of the flange member 13. The flange member 13 is biased in the direction opposite to the rotatable direction (the direction in which the distance between the outer peripheral surface of the rod 10 and the facing surface 13e of the flange member 13 becomes narrower; the left rotation direction in FIG. 6).

  As shown in FIG. 6, the spherical member 20 and the spring 36 are provided in three sets in the circumferential direction of the rod 10 at intervals of 120 ° from each other.

  According to the above configuration, the rod 10 can freely rotate in the right rotation direction in FIG. 6 with respect to the flange member 13, but when a rotational force in the opposite direction is generated, the spherical member 20 contacts. Since the gap between the rod 10 and the facing surface 13e of the flange member 13 is formed narrower in the opposite direction, the spherical member 20 is sandwiched between the rod 10 and the flange member 13, and the spherical member 20 The rotation in the reverse direction is suppressed by the frictional force (check means).

As shown in FIG. 5, the release member 14 is formed in a flange shape that is coaxially inserted into the rod 10, and is disposed adjacent to the axial direction of the flange member 13 and the axial direction of the rod 10. Are independently rotatable. One end of the release member 14 is provided so as to protrude from the main body 12, and the user can rotate the release member 14.
On the opposite side of the release member 14 to the flange member 13, a cap 22 that closes the hollow portion 14 c of the release member 14 is provided. Further, on the outer surface side of the cap 22, a flange member 13, a release member 14, and a clasp 24 that prevents the cap 22 from falling off the rod 10 are provided. The cap 22 and the clasp 24 are provided so as to be relatively rotatable with respect to the rod 10 and / or the release member 14, respectively, and do not hinder the relative rotation of the release member 14 with respect to the rod 10.

The flange member 13 and the release member 14 are engaged by a recess 14b formed on the flange member 13 side of the release member 14 and a protrusion 13g of the flange member 13 that enters the recess 14b. The concave portion 14b and the protruding portion 13g are provided with a slight play in the circumferential direction thereof and capable of rotating relative to each other by a predetermined angle.
The release member 14 is formed with a pressing portion 14a extending along the rod 10 toward the flange member 13 side. As shown in FIG. 6, the pressing portion 14 a is provided so as to enter between the spherical members 20. The release member 14 is pushed in the same direction as the direction in which the distance between the outer peripheral surface of the rod 10 and the opposing surface 13e of the flange member 13 is increased, that is, in the clockwise direction in FIG. The portion 14a can move the spherical member 20 against the urging force of the spring 36 (release means). The play in the circumferential direction between the flange member 13 and the release member 14 engaged with each other is set to such an extent that the pressing portion 14 a can press the spherical member 20. When the pressing member 14a presses the spherical member 20 and the release member 14 is rotated in the same direction by the user beyond the range of play, the protrusion 13g and the recess 14b Due to the engagement, the release member 14 and the flange member 13 rotate integrally.

  When the spherical member 20 is moved against the urging force of the spring 36 at the pressing portion 14 a of the release member 14, a force that rotates the rod 10 in the reverse direction with respect to the flange member 13 is applied. In this case, since the spherical member 20 is not sandwiched between the rod 10 and the flange member 13, the reverse rotation of the rod 10 is not inhibited, and the reverse rotation of the rod 10 is prevented. The suppression is released (this is the action of the release means).

  As shown in FIG. 5, one end 18 a of the spiral spring 18 is formed in a straight line, is fitted into a notch 10 b formed in the axial direction of the rod 10, and is connected to the rod 10. The other end 18 b of the spiral spring 18 is formed in a straight line, is fitted into a groove portion 14 d 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 urging force of the spiral spring 18 acts between the flange member 13 and the rod 10. .

Next, an initial setting method of the preload device 8 will be described.
First, the user rotates the release member 14 in the same direction as the direction in which the distance between the outer peripheral surface of the rod 10 and the facing surface 13e of the flange member 13 increases, that is, in the right rotation direction in FIG. According to this operation, first, the pressing portion 14a of the release member 14 is rotated clockwise with respect to the flange member 13 within the range of play between the concave portion 14b and the protruding portion 13g. Press. Then, the spherical member 20 is moved, and the inhibition of the reverse rotation of the rod 10 with respect to the flange member 13 is released.

After that, by further rotating operation of the release member 14 by the user, the flange member 13 engaged by the recess 14b and the protrusion 13g is rotated together with the release member 14 and is also connected to the release member 14. A rotational force in the same direction as the release member 14 is also generated in the rod 10 via 18.
As the rod 10 rotates, the roller device 7 attached eccentrically with respect to the rotation axis of the rod 10 is raised, and the roller 7 b comes into contact with the guide surface 2 a of the support rail 2.
In this state where the roller device 7 abuts on the support rail 2 and the rod 10 cannot be rotated in the same direction any more, if the release member 14 is further rotated, the spiral spring 18 is wound, A biasing force in the same direction is applied.

  When the user stops the release operation of the release member 14 and releases the release member 14, the release member 14 is rotated by the urging force of the wound spiral spring 18. The rotational force in the opposite direction works. By this force, the release member 14 is rotated in the opposite direction, and the pressing portion 14 a is separated from the spherical member 20. Then, the spherical member 20 returns to a position in contact with both the outer peripheral surface of the rod 10 and the opposing surface 13e of the flange member 13 by the urging force of the spring 20. Thereby, it is suppressed that the rod 10 rotates with respect to the flange member 13 in the said reverse direction (non-return means).

Further, after the release member 14 rotates in the reverse direction by the amount of play, the reverse biasing force of the spiral spring 18 is applied to the flange member 13 engaged with the release member 14 via the release member 14. Work against. However, since the rotation of the flange member 13 in the reverse direction is suppressed by the ratchet mechanism, the flange member 13 does not rotate in the reverse direction (non-return means).
Therefore, the urging force of the spiral spring 18 acts as a force for rotating the rod 10 in the rotation direction, and a preload is applied to the support rail 2 via the roller device 7.

  According to the horizontal movement device according to the present embodiment, when a clearance is generated between the guide surface 2a of the support rail 2 and the roller 7b of the roller device 7 due to wear or the like, the rod is caused by the urging force of the spiral spring 18. 10 and the roller device 7 are rotated to move (raise) the roller device 7 to fill the clearance. On the other hand, when a force that presses the roller device 7 from the support rail 2 is applied during the movement of the horizontal moving body 4, the urging direction of the rod 10 is between the rod 10 that contacts the spherical member 20 and the flange member 13. Therefore, the spherical member 20 is sandwiched between the rod 10 and the flange member 13, and the reverse rotation of the rod 10 is suppressed by the frictional force with the spherical member 20. .

  As described above, the clearance between the support rail 2 and the roller device 7 generated by wear or the like is preferably filled by the rotation of the rod 10 and the rod 10 does not rotate reversely. Even if a large force is sometimes applied from the support rail 2 to the roller device 7, there is no clearance between the roller device 7 and the support rail 2, and thus no backlash occurs. Further, since the pre-pressure applied by the spiral spring 18 is sufficient only to rotate the rod 10 to fill the clearance between the support rail 2 and the roller 7b generated by wear or the like, the biasing force of the spiral spring 18 is sufficient. It is not necessary to increase the (preload) so as to counter the maximum force that can be applied to the horizontal moving body 4.

  Further, since the spherical member 20 is constantly maintained in a position where it comes into contact with the rod 10 and the flange member 13 by being pressed by the spring 36, when a force reverse to the urging force of the spiral spring 18 is applied to the rod 10. In addition, the reverse rotation of the rod 10 can be immediately controlled without play.

  In addition, since the spherical members 20 are arranged in a plurality (three in the present embodiment) in the circumferential direction of the outer periphery of the rod 10, a force that reverses the urging force of the spiral spring 18 is applied to the rod 10. In this case, the force applied between the spherical member 20 and 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 members 20 and the rods 10 and the flange members 13 is dispersed, so that damage and excessive biting can be suppressed and stable driving can be performed.

Further, since the other end 18 b of the spiral spring 18 is connected to the flange member 13 via the release member 14, an operation of rotating the flange member 13 in the rotation direction via the release member 14 is performed. The urging force of the spiral spring 18 can be applied to the rod 10 by winding the spiral spring 18.
Further, by moving the spherical member 20 in the rotation direction by the pressing portion 14a of the release member 14, the restriction on the rotation of the rotating body can be released.
Furthermore, the flange member 13 is engaged with the release member so as to rotate integrally with the release member 14 through a predetermined play when the release member 14 is rotated.
For this reason, by performing the operation of turning the release member 14 in the rotation direction, the non-return suppression of the rod 10 can be released, and the spiral spring 18 can be wound by turning the release member 14. Further, since the biasing force of the spiral spring 18 acts on the release member 14 in the direction opposite to the rotation direction, the pressing portion 14a of the release member 14 is a spherical member when the release member 14 is not operated. 20 can be made to stand by in the position which does not press.
With this configuration, the preload device 8 of the horizontal movement device according to the present embodiment is excellent in operability and maintainability.

In the present embodiment, the rod 10 as the rotating body of the preload device 8 is directly connected to the roller device 7 as the contact body, but is not limited to this configuration.
For example, another transmission member may be provided between the rotating body and the contact body, and the contact body may be indirectly pressed via the transmission member.

Further, the horizontal movement device according to the present embodiment has the following operational effects by the groove portion 40 of the horizontal support rail 2 and the protruding peripheral portion 42 of the rollers 6b and 7b.
That is, the groove portion 40 of the horizontal support rail 2 and the projecting peripheral portion 42 of the rollers 6b and 7b abut on both edge portions 40a and 40b and the both edge portions 42a and 42b, and the outer surface 42c of the projecting peripheral portion 42 is formed. It is formed so as not to contact the inner surface 40 c of the groove 40. Therefore, the horizontal support rail 2 and the rollers 6b and 7b are the edge portions 40a, 40b, 42a and 42b of the groove portion 40 and the projecting peripheral portion 42, and the guide surface 2a of the horizontal support rail 2 and the rollers 6b, It abuts only on the outer peripheral surface of 7b. Therefore, since the distance (radius) from the rotation axis of the rollers 6b and 7b at the contact portion is uniform, unlike the conventional moving device described in Patent Document 1, the distance between the rollers 6b and 7b and the horizontal support rail 2 is different. Thus, slip due to the difference in peripheral speed between the outer peripheral surfaces of the rollers 6b and 7b does not occur, the operating resistance can be reduced, and the wear of the rollers 6b and 7b can be reduced. In addition, since both edge portions 40a, 40b, 42a, and 42b of the groove portion 40 and the projecting peripheral portion 42 are in contact with each other, backlash in the axial direction of the rollers 6b and 7b is suitably suppressed.

  In particular, since the rollers 6b and 7b and the horizontal support rail 2 are not separated by the action of the check means of the preloading device 8, even if the angle θ2 of the protrusion 42 is gently formed, the groove 40 The edge portion does not ride on the protrusion portion 42, and the outer surface 42c of the protrusion portion 42 and the inner surface 40c of the groove portion 40 do not come into contact with each other, so that it is possible to suppress operating resistance and wear.

  Further, since a plurality of sets of groove portions 40 and projecting peripheral portions 42 are provided, the axial force of the rollers 6b and 7b between the horizontal support rail 2 and the rollers 6b and 7b is applied to the both edge portions 40a, 40b, 42a, and 42b are applied to the rollers 6b, 42b, so that an excessive force is not applied to the rollers 6b and 7b to cause damage or the like.

  In addition, the structure of the groove part 40 and the protrusion part 42 in this Embodiment is reversed, it replaces with the groove part 40 of the horizontal support rail 2, and a groove part is formed in roller 6b, 7b, and the protrusion part of roller 6b, 7b It goes without saying that the same action and effect can be obtained even if a protrusion is provided on the horizontal support rail 2 instead of 42.

  Needless to say, the vertical movement apparatus can also obtain the same effects as those of the horizontal movement apparatus.

  By adopting the horizontal moving device and the vertical moving device, the resin molded product take-out device A according to the present embodiment can move the chuck portion 50 with no play and a small operating resistance. The resin molded product can be suitably taken out.

The present invention is applied not only to a moving device in a resin molded product take-out device, but also to any moving device provided with a moving body guided and moved by a support rail or a rail-shaped moving body guided and moved by a roller device. It is possible.
Further, not only a moving device that moves on a straight track, but also, for example, if a bent support rail is employed, a moving device that can move the moving body in a curved manner can be configured.

It is a perspective view of the taking-out apparatus A of the resin molded product which employ | adopted the moving apparatus which concerns on this invention. It is the elements on larger scale of the taking-out apparatus A of the resin molded product. It is an enlarged view of the contact part of a support rail and a roller. It is a perspective view of a preload device. It is side sectional drawing of a preload apparatus and a contact body. It is XX sectional drawing of a preload apparatus. It is an enlarged view of the contact part of the support rail and roller in the conventional moving apparatus.

Explanation of symbols

A linear motion device 2 support rail 4 moving body 5 motor (drive device)
6 Roller device (contact body)
7 Roller device (contact body)
8 Preloading device 10 Rod (rotating body)
12 Preloading device body 13 Flange member (opposite part)
13e Opposing surface 13d Uneven portion 14 Release member (release means)
14a Pressing portion 18 Spiral spring (first biasing member)
20 Spherical member 30 Groove 36 Spring (second biasing member)
a Rotation axis of roller device b Rotation axis of rod (rotating body)

Claims (10)

A support rail fixed to the substrate;
A movable body that is guided by the support rail and is movable;
A roller device having a roller in contact with the guide surface of the support rail and rolling on the guide surface;
In the moving device provided with the preload means provided on the moving body and constantly pressing the roller device toward the support rail with a required force,
A groove is formed in the guide surface of the support rail along a guide direction for guiding the movable body,
On the outer peripheral surface of the roller, a protruding peripheral portion having a height lower than the depth of the groove portion that enters the groove portion is formed,
The groove portion and the protrusion portion are
Both edges of the groove and the edges of the projecting part abut,
An angle formed by the guide surface and the inner side surface of the groove portion at the both edge portions where the groove portion and the projecting peripheral portion abut so that the outer surface of the projecting peripheral portion does not contact the inner side surface of the groove portion is the guide surface. And the outer surface of the projecting portion is formed to be smaller than an angle. A support rail fixed to the substrate;
A movable body that is guided by the support rail and is movable;
A roller device having a roller in contact with the guide surface of the support rail and rolling on the guide surface;
In the moving device provided with the preload means provided on the moving body and constantly pressing the roller device toward the support rail with a required force,
On the guide surface of the support rail, a protrusion is formed along a guide direction for guiding the moving body,
On the outer peripheral surface of the roller, a groove portion deeper than the height of the ridge portion is formed, into which the ridge portion enters,
The ridge and the groove are
The both edges of the ridge and the both edges of the groove contact,
The angle formed by the guide surface and the inner side surface of the groove portion is the guide surface at both edges where the ridge portion and the groove portion abut so that the outer surface of the ridge portion does not contact the inner side surface of the groove portion. And a moving device, wherein the moving device is formed to be smaller than an angle formed by the outer surface of the protrusion. The preload means is
A biasing member that biases the roller device toward the support rail;
The moving device according to claim 1, further comprising a check unit that does not move the roller device in a direction away from the support rail. The support rail is made of a metal mainly composed of aluminum,
The said roller consists of synthetic resin materials, The moving apparatus as described in any one of Claims 1-3 characterized by the above-mentioned.   The said support rail is formed by extrusion molding the metal which has aluminum as a main component, The moving apparatus as described in any one of Claims 1-4 characterized by the above-mentioned. A roller device provided on the substrate;
A rail-like moving body that has a guide surface that comes into contact with the roller of the roller device, and is movably provided by being guided by the roller device;
In a moving device provided with a preload device provided on the base and constantly pressing the roller device toward the moving body with a required force,
A groove portion is formed in the guide surface of the moving body along a guide direction by the roller device,
On the outer peripheral surface of the roller, a protruding peripheral portion having a height lower than the depth of the groove portion that enters the groove portion is formed,
The groove portion and the protrusion portion are
Both edges of the groove and the edges of the projecting part abut,
An angle formed by the guide surface and the inner side surface of the groove portion at the both edge portions where the groove portion and the projecting peripheral portion abut so that the outer surface of the projecting peripheral portion does not contact the inner side surface of the groove portion is the guide surface. And the outer surface of the projecting portion is formed to be smaller than an angle. A roller device provided on the substrate;
A rail-like moving body that has a guide surface that comes into contact with the roller of the roller device, and is movably provided by being guided by the roller device;
In a moving device provided with a preload device provided on the base and constantly pressing the roller device toward the moving body with a required force,
On the guide surface of the moving body, a protrusion is formed along the guide direction by the roller device,
On the outer peripheral surface of the roller, a groove portion deeper than the height of the ridge portion is formed, into which the ridge portion enters,
The ridge and the groove are
The both edges of the ridge and the both edges of the groove contact,
The angle formed by the guide surface and the inner side surface of the groove portion is the guide surface at both edges where the ridge portion and the groove portion abut so that the outer surface of the ridge portion does not contact the inner side surface of the groove portion. And a moving device, wherein the moving device is formed to be smaller than an angle formed by the outer surface of the protrusion. The preload means is
A biasing member that biases the roller device toward the movable body;
The moving device according to claim 6, further comprising check means that does not move the roller device in a direction away from the moving body. The moving body is made of a metal mainly composed of aluminum,
The moving device according to any one of claims 6 to 8, wherein the roller is made of a synthetic resin material.   The moving device according to claim 6, wherein the moving body is formed by extruding a metal mainly composed of aluminum.

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