JP3672977B2 - Lid temporary mounting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lid temporary mounting device for temporarily mounting a lid on the mouth and neck of a container main body before feeding the container main body filled with contents to the lid tightening device.
[0002]
[Prior art]
As known to those skilled in the art, as a container for beverages and the like, a container body having male engaging means such as male threads formed on the outer peripheral surface, a top wall, and a cylindrical skirt depending from the top wall A combination with a lid having a wall and a female engagement means such as a female thread cooperating with the male engagement means on the inner peripheral surface of the skirt wall is widely used. . And in filling systems, such as a drink which uses such a container, a container main body is sent to a filling apparatus, and the content is filled in the container main body in this filling apparatus. Next, the container body filled with the contents is fed to the lid temporary mounting apparatus, and the lid body is temporarily mounted on the mouth and neck of the container body in the lid temporary mounting apparatus. After that, the container body temporarily attached with the lid is fed to the lid clamping device. In this lid clamping device, the female engagement means of the lid is sufficiently strong to the male engagement means of the mouth and neck of the container body. Engaged, thus sealing the mouth and neck of the container body.
[0003]
Japanese Patent Publication No. 3-14715 discloses a lid temporary mounting device used in the above-described filling system. Such a temporary mounting device includes a transport unit that supports the container body in an upright state and transports the container body through a transport path that extends substantially horizontally, and a lid supply that is disposed in a lid fitting area disposed in the transport path. Means, and a temporary fastening means disposed in a temporary fastening area disposed downstream of the lid supply area in the conveyance path. The lid supply means sequentially supplies the lid to the lid fitting area in a forwardly inclined state in which the central axis thereof is inclined downward as seen in the transport direction of the container body. When the container body passes through the lid body fitting area, the lid body positioned in the forwardly tilted state in the lid body fitting area is fitted on the mouth and neck portion of the container body. The temporary fastening means interferes with the skirt wall of the lid body on one side of the conveyance path when the container body with the lid body fitted to the mouth and neck section passes through the temporary fastening area, and thereby the mouth body neck section of the container body. Rotate the lid in the closing direction. By such rotation of the lid, the lid is temporarily attached to the mouth and neck of the container body, that is, the male engaging means of the mouth and neck and the female engaging means of the lid are relatively loosely engaged, thus Before the container body fitted with the lid is fed to the lid fastening device, the lid fitted on the mouth and neck of the container body is prevented from being inclined due to vibration or the like. .
[0004]
[Problems to be solved by the invention]
Thus, according to the experience of the present inventors, the length in the central axial direction between the lower end of the female engaging means formed on the inner peripheral surface of the skirt wall of the lid and the lower end of the lid is particularly large. In the temporary mounting apparatus as described above, when the cover is relatively shallow when the cover is fitted to the mouth and neck of the container body, It turns out that the following problems occur. That is, the lid body fitted to the mouth / neck portion of the container body is not brought into the non-inclined state, that is, substantially horizontal state from the forward tilted state in the lid body fitting region, and therefore, the lid body is covered with the mouth / neck portion of the container body. There is a tendency that the fitted lid body is fed to the temporary fastening region while being substantially inclined with respect to the mouth-and-neck portion. In addition, even when the lid that is fitted to the mouth and neck of the container body is temporarily lowered from the forward tilted state to the substantially horizontal state, the temporary fastening means is placed on one side of the lid at the upstream end of the temporary fastening area. There is a tendency that the lid body is inclined in the lateral direction with respect to the conveying direction by the force applied to the lid body from the temporary fastening means when the interference starts. When the tilted lid is transported through the temporary fastening area, the lid is not properly rotated by the temporary fastening means and passes through the temporary fastening area without being temporarily tightened, or the lid is tilted. By being rotated as it is, the male engaging means and the female engaging means are improperly engaged, and so-called oblique covering occurs on the lid.
[0005]
The present invention has been made in view of the above-mentioned facts, and the main technical problem thereof is that a lid fitted in a forward tilted state on the mouth and neck of the container body in the lid fitting area is conveyed to the temporary fastening area. It is an object of the present invention to provide a new and improved lid temporary mounting device capable of surely correcting a lid from a forwardly tilted state to a substantially horizontal state until it is done.
[0006]
Another technical problem of the present invention is that it is reliably prevented that the lid body in a substantially horizontal state is inclined when the temporary fastening means starts to interfere with the lid body at the upstream end of the temporary fastening area. And providing a new and improved lid temporary mounting device in which the female engaging means of the lid is smoothly and smoothly engaged with the male engaging means of the mouth and neck of the container body in the temporary fastening region. is there.
[0007]
[Means for Solving the Problems]
In order to solve the above main technical problem, in the present invention, at least downstream from the downstream end of the lid fitting area along the conveyance path, the outer diameter of the lid body is larger than the outer diameter of the mouth and neck of the container body. A pair of straightening rails extending at an interval smaller than the outer diameter of the lower end of the skirt wall is provided, and the container body with the lid fitted on the mouth and neck is conveyed downstream from the lid fitting area. At this time, the pair of straightening rails act on the lower end of the skirt wall of the lid so as to correct the lid in a substantially horizontal state.
[0008]
That is, according to the present invention, as a lid temporary mounting device that solves the main technical problem, a container body having a mouth and neck portion in which a male engagement means is formed on the outer peripheral surface is supported in an upright state, Conveying means for conveying through the conveying path, lid supplying means disposed in the lid fitting area disposed in the conveying path, and disposed downstream of the lid supplying area in the conveying path A temporary fastening means disposed in the temporary fastening area,
The lid supply means has a top wall and a cylindrical skirt wall depending from the top wall, and a female engagement means that cooperates with the male engagement means is formed on the inner peripheral surface of the skirt wall. The lid body is sequentially supplied to the lid body fitting area in a forwardly inclined state in which the central axis is inclined toward the downstream side when viewed in the transport direction of the container body toward the upper side, and the container body is configured to pass the lid body fitting area. When passing, the lid body that is positioned in a forward tilted state in the lid body fitting area is fitted to the mouth and neck of the container body,
The temporary fastening means interferes with the skirt wall of the lid body on one side of the conveyance path when the container body with the lid body fitted to the mouth and neck passes through the temporary fastening area, and thereby the mouth of the container body In the lid temporary mounting device that rotates the lid in the closing direction with respect to the neck,
At least a distance larger than the outer diameter of the mouth and neck of the container body but smaller than the outer diameter of the lower end of the skirt wall of the lid extends from the downstream end of the lid fitting area downstream along the conveyance path. When a container body having a pair of straightening rails and having a lid fitted on the mouth and neck is conveyed downstream from the lid fitting area, the pair of straightening rails is provided at the lower end of the skirt wall of the lid. Thus, a lid temporary mounting device is provided, which acts to correct the lid to a substantially horizontal state.
[0009]
In order to achieve the other technical problem in addition to the achievement of the main technical problem, the pair of straightening rails are extended to at least an upstream portion of the temporary fastening area. Even if the lid is rotated by the action of the temporary fastening means, the lowering of the lid is restricted by the pair of correction rails, so that the female engaging means of the lid and the container body The configuration is such that the engagement of the mouth and neck with the male engaging means is not started.
[0010]
Conveniently, the conveying means conveys the container body substantially horizontally, and the pair of straightening rails are at least partially inclined downwardly at an inclination angle of 0 to 5 degrees downward. Preferably, at least in the range from the downstream end of the lid fitting area to the upstream portion of the temporary fastening area, an elastic bias that elastically biases the lid fitted to the mouth and neck of the container body downward. Means are provided. The elastic biasing means is preferably composed of a plurality of leaf spring members arranged in the transport direction.
[0011]
[Action]
According to the lid temporary mounting means of the present invention, after the lid body is fitted in the forward and tilted state on the mouth and neck portion of the container body in the lid fitting region, the lid body is fitted on the container body and the mouth and neck portion thereof. When the lid is transported to the temporary fastening area, the lid is forcibly corrected to a substantially horizontal state by the action of the pair of correction rails. Further, in an aspect in which the pair of straightening rails extends at least to the upstream portion of the temporary tightening region, the pair of straightening rails act on the lower end of the skirt wall of the lid, so that the lid is substantially horizontal. Even if a force is applied to the lid body from the temporary fastening means when the temporary fastening means starts to interfere with the lid body at the upstream end of the temporary fastening area, the lid body is not tilted. Since the female engagement means of the lid body starts to be engaged with the male engagement means of the mouth / neck portion of the container body after the rotation of the lid body is started in the temporary fastening region, the female engagement means and the male engagement means Is sufficiently smoothly advanced.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of a lid temporary mounting device constructed according to the present invention will be described in more detail with reference to the accompanying drawings.
[0013]
Referring to FIGS. 1 and 2, the lid temporary mounting device shown in the figure includes a rotating turret type conveying means denoted as a whole by 2. The conveying means 2, which may be in a well-known manner, includes a stationary support shaft 4 that extends substantially vertically. A substantially cylindrical rotating member 5 is rotatably mounted on the support shaft 4, and a suspended turret 6 is fixed to the upper end portion of the rotating member 5. A plurality of semicircular cutouts 8 are formed at equal intervals in the circumferential direction on the outer peripheral edge of the suspended turret 6 arranged substantially horizontally. A stationary guide rail 10 extending in an arc shape along the outer peripheral edge of the suspended turret 6 is disposed outside the suspended turret 6. The rotating member 5 is connected to a rotational drive source (not shown) which may be an electric motor, and the rotating member 5 and the suspended turret 6 fixed thereto are continuously rotated in the direction indicated by the arrow 12 in FIG. It can be driven.
[0014]
In the carry-in area indicated by reference numeral 14 in FIG. 1, the container body 16 filled with the contents is carried into the carrying means 2 by carrying-in means (not shown) which may be in a known form. A container body that can be formed from an appropriate synthetic resin such as polyethylene terephthalate has a substantially cylindrical mouth-and-neck portion 18 as clearly shown in FIG. On the outer peripheral surface of the mouth-and-neck portion 18 are formed a male thread 20 that constitutes a male engaging means, and an annular bulging portion 22 that is positioned below the male thread 20. A locking ratchet (not shown) is formed on the outer peripheral surface of the annular bulging portion 22 at an appropriate interval in the circumferential direction. A suspension flange 24 is further formed on the outer peripheral surface of the mouth-and-neck portion 18 so as to be positioned below the male thread 20. The inner diameter of the semicircular cutout 8 formed in the suspension turret 6 is substantially the same as the outer diameter of the mouth neck portion 18 of the container body 16 and is smaller than the outer diameter of the suspension flange 24. As can be easily understood by referring to FIG. 2, the container main body 16 carried into the conveying means 2 has its suspension flange 24 positioned above the suspension turret 6 and its mouth and neck portion 18 of the suspension turret 6. The container body 16 is partially accommodated in the notch 8, and the container body 16 is suspended from the suspension turret 6 in an upright state. The container main body 16 carried into the conveying means 2 is moved from the carry-in area 14 to the transfer area indicated by numeral 26 in FIG. 1 accompanying the rotation of the suspension turret 6, and thus the container main body 16 is moved to the suspension turret 6. It is conveyed through a conveying path 28 extending in an arc along the outer peripheral edge of the sheet. The stationary guide rail 10 prevents the mouth-neck portion 18 of the container body 16 from detaching radially outward from the notch 8 of the suspended turret 6 when being transported through the transport path 28. As will be described in detail later, while the container body 16 is conveyed through the conveyance path 28, the lid 30 is fitted on the mouth-neck portion 16 of the container body 16 and temporarily tightened. In the transfer area 26, the container body 16 with the lid 30 temporarily clamped is transferred to a lid clamping device 32 illustrated in a simplified manner in FIG. The lid fastening device 32 itself may be of a form well known to those skilled in the art, and description of its configuration is omitted in this specification.
[0015]
Referring to FIGS. 3 and 4 together with FIG. 1, a lid fitting area 34 and a temporary fastening area 36 are arranged in the conveyance path 28. A lid supply means 38 is arranged in the lid fitting area 34, and a temporary fastening means 40 is arranged in the temporary fastening area 36 arranged downstream of the lid fitting area 34. ing.
[0016]
The illustrated lid supply means 34 includes a stationary chute 42 that extends downwardly toward the tip. The distal end portion of the stationary chute 42 extends above the conveyance path 28 of the container body 16. A pair of lid gripping tools 44 (FIG. 3) is disposed at the distal end of the stationary chute 42. A spring member (not shown) is attached to the pair of lid gripping tools 44, and the pair of lid other gripping tools 44 elastically grips the lid body 30 from both sides at the distal end of the stationary chute 42. Grip freely. As clearly shown in FIG. 4, the bottom wall 46 of the stationary chute 42 does not extend to the tip, and the lid 30 is held by the pair of lid gripping tools 44 and positioned at the tip of the stationary chute 42. It does not exist below. Since the configuration of the lid supply means 34 itself is well known to those skilled in the art, a detailed description thereof will be omitted in this specification. As can be understood by referring to FIG. 4, the lid 30 has a circular top wall 48 and a cylindrical skirt wall 50 depending from the periphery of the top wall 48. In the illustrated lid 30, there is a frustoconical portion whose outer diameter gradually increases downward at the lower part of the skirt wall 50, and the outer diameter of the lower end of the skirt wall 50 is somewhat larger than the outer diameter of the upper part. It is getting bigger. A so-called knurl (uneven shape for preventing slippage) 52 is formed on the upper outer peripheral surface of the skirt wall 50. On the upper inner peripheral surface of the skirt wall 50, a female thread 54 constituting a female engaging means is formed. Instead of the female thread 54, the female engaging means may be constituted by so-called lugs formed on the inner peripheral surface of the skirt wall 50 at intervals in the circumferential direction. A ratchet (not shown) that cooperates with a ratchet (not shown) formed in the annular bulging portion 22 of the mouth neck portion 18 of the container body 16 is provided on the lower inner peripheral surface of the skirt wall 50. It is formed at intervals in the direction. Such a lid 30 has a stationary chute in a forward tilted state in which the central axis thereof is inclined forward at an inclination angle of about 20 degrees toward the front (and thus in the downstream direction when viewed in the conveying direction of the container body 16). 42 to be transferred. At the distal end of the stationary chute 42, a pair of lid gripping tools 44 elastically grip the most advanced lid 30. Since the bottom wall 46 does not exist at the tip of the stationary chute 42, the lower end of the most advanced lid 30 is exposed without being covered by the bottom wall 46. As can be easily understood by referring to FIG. 4, when the upright container body 16 passes through the lid fitting region 34, the upper end portion of the mouth neck portion 18 of the container body 16 is moved to the stationary chute 42. 4 and interferes with the front side (right side in FIG. 4) of the skirt wall 50 of the lid 30 held at the tip of the lid 30 from the rear, that is, from the inside, and thus the lid 30 is released from the pair of lid holders 44 and the container body It is put on 16 mouth and neck parts 18. When the most advanced lid 30 is released from the pair of lid grippers 44, the lid 30 is advanced in the stationary chute 42 accordingly, and the next lid 30 is paired with the pair of lid grippers 44. It is held open between them.
[0017]
3 and 4 together with FIG. 5, the stationary support top plate 56 extending above the conveying path 28 from the downstream portion of the lid fitting region 34 to the downstream side of the temporary fastening region 36 is provided. It is arranged. A pair of side wall members 58 are fixed to the lower surface of the support top plate 56. The pair of side wall members 58 are extended in an arc along the conveying path 28 in parallel at a predetermined interval, and a drooping portion 60 that extends substantially vertically downward from the lower surface of the support top plate 56 and an outer side from its lower end. And a horizontal portion 62 that protrudes from the center. The distance between the pair of side wall members 58 is somewhat larger than the maximum outer diameter of the lid body 30 (that is, the lower end outer diameter of the skirt wall 50). A projecting portion that projects outward in the radial direction is integrally formed on the downstream side of the support top plate 56 in the conveying direction, and the temporary fastening means 40 is mounted on the lower surface of the projecting portion. The temporary fastening means 40 includes a holding frame body 64 and a temporary fastening member 66 held by the holding frame body 64. The holding frame body 64 includes an upper wall plate 70 connected to the lower surface of the projecting portion of the support top plate 56 via a plurality of connecting columns 68 and a frame member 72 connected to the upper surface plate 70. . The frame member 72 has a bottom wall portion 74, an outer wall portion 76, and both end wall portions 78 (FIG. 3). The upper surface (the upper surface is closed by the upper wall plate 70) and the radially inner side surface are opened. Yes. As shown in FIG. 3, a restriction protrusion 80 is formed at the radially inner end of both end walls 78 of the frame member 72. The temporary fastening member 66 includes a main portion 82 that extends in an arc shape on one side (radially outer side) of the conveyance path 28, a held portion 84, and a connection portion 86 that connects the two. The held portion 84 is accommodated in the frame member 72, and the connection portion 86 is protruded radially inward from the frame member 72. Between the held portion 84 of the temporary fastening member 66 and the outer wall portion 76 of the frame member 72, a plurality of temporary fastening members 66 are elastically biased radially inward, that is, toward the conveyance path 28. A coil spring 88 is interposed. The conveyance direction length of the non-holding portion 84 of the temporary fastening member 66 is longer than the length of the frame member 72 in the conveyance direction between the restriction protrusions 80, and the movement of the temporary fastening member 66 inward in the radial direction of the held portion 84. Both ends are limited by contacting the limiting protrusion 80. As can be understood from FIG. 4, the main portion 82 of the temporary fastening member 66 passes through an opening 90 formed in the hanging portion 60 of one of the pair of side wall members 58 (the one positioned radially outward) and has a radius. Projected inward. On the radially inner side surface of the main portion 82 of the temporary fastening member 66, a knurl (uneven shape) 91 corresponding to the knurl formed on the outer peripheral surface of the skirt wall 50 of the lid 30 is formed.
[0018]
In the lid temporary mounting device configured according to the present invention, it is important that at least a pair of straightening rails 92 extending downstream from the downstream end of the lid fitting region 34 along the transport path 28 is disposed. . In the illustrated embodiment, as clearly understood from FIGS. 3 to 5, a pair of appropriate connecting means (not shown) such as fastening bolts are provided on the lower surface of the horizontal portion 62 of the pair of side wall members 58. The straightening rail 92 is fixed. The pair of straightening rails 92 extend in parallel to each other at a predetermined interval along the transport path 28 from the downstream portion of the lid fitting region 34 to a somewhat downstream side of the temporary fastening region 36. As clearly shown in FIG. 4, each of the pair of straightening rails 92 extends with a relatively large inclination angle α in the downstream portion of the lid fitting region 34 and inclined downward toward the downstream. Then, it extends downwardly from the downstream end of the lid fitting region 34 at a slight inclination angle β toward the downstream. The inclination angle α is substantially the same as the inclination angle of the lid 30 that is held open at the tip of the stationary chute 42, and may be about 20 degrees. The inclination angle β is preferably about 0 to 5 degrees. In the illustrated embodiment, the pair of straightening rails 92 extend straight from the downstream end of the lid fitting region 34 to the somewhat downstream side of the temporary fastening region 36 at the same inclination angle β. A part of the pair of straightening rails 92 is, for example, an upstream portion (therefore, a portion located immediately downstream of the lid fitting region 36) and the temporary clamping region 36 between the lid fitting region 34 and the temporary fastening region 36. It is also possible to extend the upstream part of the first part substantially horizontally. As clearly shown in FIG. 5, each of the pair of straightening rails 92 protrudes into the conveying path 28 slightly beyond the inner edge of the horizontal portion 62 of the pair of side wall members 58, The interval between the members 58 is somewhat larger than the outer diameter of the mouth / neck portion 18 of the container body 16, but is somewhat smaller than the outer diameter of the lower end of the skirt wall 50 of the lid 30.
[0019]
The lid temporary mounting device constructed according to the present invention is further fitted to the mouth and neck portion 18 of the container body 16 at least in the range from the downstream end of the lid fitting region 34 to the upstream end of the temporary fastening region 36. Conveniently, an elastic biasing means is provided for elastically biasing the formed lid 30 downward, and thus towards the mouth neck 18. As shown in FIGS. 4 and 5, in the illustrated embodiment, a plurality of leaf spring members 94 are provided on the lower surface of the support top plate 56 between the pair of side wall members 58 at appropriate intervals in the transport direction. The plurality of leaf spring members 94 are mounted and constitute the elastic biasing means. Each of the plurality of leaf spring members 94 includes a mounting portion 96 that is positioned along the lower surface of the support top plate 56, a hanging portion 98 that extends substantially vertically downward from the mounting portion 96, and a hanging portion 98. And an action part 100 extending downwardly from the lower end toward the downstream in the conveying direction. The inclination angle γ of the action part 100 of the leaf spring member 94 may be about 10 to 20 degrees.
[0020]
In the lid temporary mounting device as described above, the stationary chute 42 of the lid supply means 38 when the container body 16 that is supported and conveyed in an upright state by the conveyance means 2 passes through the lid fitting area 34. A lid 30 that is held open at the tip of the container is fitted on the mouth / neck portion 18 of the container body 16. As clearly shown in FIG. 4, the lid 30 held at the tip of the stationary chute 42 is in a forward inclined state in which the central axis is inclined downstream as viewed in the transport direction of the container body upward. The forwardly tilted lid body 30 is fitted on the mouth and neck portion 18 of the container body 16. Next, when the container main body 16 is transported downstream from the lid fitting region 34, the action portions 100 of the plurality of leaf spring members 94 are covered by the lid, as clearly understood by referring to FIGS. The lid 30 is elastically biased downward by acting on the top wall 48 of the body 30, but the lower end of the skirt wall 50 of the lid 30 abuts against the pair of correction rails 92 on both sides of the transport path 28. This prevents the lid 30 from being lowered. The pair of correction rails 92 extend substantially horizontally on the downstream side of the lid fitting region 34, and more specifically, extend downwardly with a slight inclination angle β that may be about 0 to 5 degrees. Therefore, when the pair of straightening rails 92 act on the lower end of the skirt wall 50 of the lid 30, the lid 30 is corrected from the forward tilted state to the substantially horizontal state and is maintained in the substantially horizontal state. Are transported. Since the pair of straightening rails 92 acts on the lower end of the skirt wall 50 of the lid body 30 to prevent the lid body 30 from descending, the lid body 30 is tightly fitted to the mouth neck portion 18 of the container body 16. However, since the mouth and neck 18 is in contact with the front side (right side in FIG. 4) of the skirt wall 50 of the lid 30 from behind, that is, from the inside, Accompanying the movement of the container body 16, the lid 30 is also transported sufficiently reliably downstream.
[0021]
When the lid 30 fitted to the container main body 16 and the mouth and neck portion 18 enters the temporary fastening region 36, the temporary fastening member 66 of the temporary fastening means 40 is closed from one side (radially outward) of the transport path 28. It is elastically brought into contact with the upper outer peripheral surface of the 30 skirt walls 50. Thus, a force is applied to the lid body 30 from one side of the transport path 28, but a pair of correction rails 92 act on the lower end of the skirt wall 50 of the lid body 30 on both sides of the transport path 28 to make the lid body 30 substantially horizontal. Therefore, the lid body 30 is not tilted laterally by the force applied from the temporary fastening member 66 to the lid body 30. When the inner surface of the temporary fastening member 66 on which the knurl 91 is formed is elastically brought into contact with the upper outer peripheral surface of the skirt wall 50 of the cover body 30 on which the knurl 52 is formed, the transport of the cover body 30 is performed. The movement in the direction is interfered, and as a result, the lid 30 is rotated in the closing direction, that is, in the clockwise direction when viewed from above in FIGS. However, in the upstream portion 102 of the temporary tightening region 36, the female thread 54 formed on the inner peripheral surface of the skirt wall 50 of the lid 30 due to the lowering prevention of the lid 30 by the pair of correction rails 92. Is still positioned slightly above the male thread 20 formed on the outer peripheral surface of the mouth-and-neck portion 18 of the container body 16, so that the lid body 30 can be rotated even if the lid body 30 is rotated in the closing direction. The female thread 54 does not begin to be engaged with the male thread 20 of the mouth-and-neck portion 18 of the container body 16, and the lid body 30 is so-called idling. When the lid 30 fitted on the container body 16 and its mouth and neck 18 passes through the upstream portion 102 of the temporary fastening region 36, the female of the lid 30 is gradually lowered according to the inclination of the pair of correction rails 92. The screw 54 starts to cooperate with the male screw 20 of the mouth-and-neck portion 18 of the container main body 16, and thus the female screw 54 of the lid 30 is rotated in the closing direction of the lid 30. It is relatively loosely screwed onto the male thread 20 of the portion 18, and the lid 30 is temporarily fastened to the mouth / neck portion 18 of the container body 16. The screwing of the female thread 54 of the lid 30 and the male thread 20 of the mouth-and-neck portion 18 of the container body 16 is not at the same time as the lid 30 is rotated in the closing direction, but somewhat later than that. Since it is started, the female screw 54 starts to be screwed into the male screw 20 sufficiently smoothly, and the occurrence of inappropriate screwing is reliably avoided.
[0022]
【The invention's effect】
In the lid temporary mounting device of the present invention, a pair of lids fitted in a forward tilted state on the mouth and neck of the container body in the lid fitting area are transported downstream from the lid fitting area. The corrective rail is surely corrected to a substantially horizontal state. Further, when the temporary fastening means starts to interfere with the lid at the upstream end of the temporary fastening area, the lid is reliably prevented from being tilted laterally from a substantially horizontal state, and the lid is also secured in the temporary fastening area. The female engaging means of the body is engaged with the male engaging means of the mouth and neck of the container body sufficiently smoothly.
[Brief description of the drawings]
FIG. 1 is a simplified plan view showing a preferred embodiment of a lid temporary mounting apparatus configured according to the present invention.
2 is a partial cross-sectional view showing a conveying means in the lid temporary mounting apparatus of FIG. 1;
3 is a partial plan view showing a lid body fitting area and a temporary fastening area in the lid temporary mounting apparatus of FIG. 1; FIG.
4 is a developed cross-sectional view showing a lid body fitting area and a temporary fastening area in the lid temporary mounting apparatus of FIG. 1. FIG.
5 is a cross-sectional view showing a temporary tightening region in the lid temporary mounting apparatus of FIG. 1;
[Explanation of symbols]
2: Conveying means
6: Suspended turret
14: Import area
16: Container body
18: The mouth and neck of the container body
20: Male thread on the container body (male engaging means)
26: Transfer area
28: Conveyance path
30: Lid
34: Covering area of lid
36: Temporary tightening area
38: Lid supply means
40: Temporary fastening means
48: Top wall of the lid
50: Lid skirt wall
54: Female thread on the lid (female engaging means)
66: Temporary fastening member
92: Straightening rail
94: Leaf spring member (elastic biasing means)

Claims (5)

Transport means for supporting a container body having a mouth-neck portion having a male engagement means formed on the outer peripheral surface in an upright state and transporting the container body through the transport path, and a lid fitting area disposed in the transport path A lid supplying means disposed in the conveying path, and a temporary fastening means disposed in a temporary tightening area disposed downstream of the lid supplying area in the conveyance path,
The lid supply means has a top wall and a cylindrical skirt wall depending from the top wall, and a female engagement means that cooperates with the male engagement means is formed on the inner peripheral surface of the skirt wall. The lid body is sequentially supplied to the lid body fitting area in a forwardly inclined state in which the central axis is inclined toward the downstream side when viewed in the transport direction of the container body toward the upper side, and the container body is configured to pass the lid body fitting area. When passing, the lid body that is positioned in a forward tilted state in the lid body fitting area is fitted to the mouth and neck of the container body,
The temporary fastening means interferes with the skirt wall of the lid body on one side of the conveyance path when the container body with the lid body fitted to the mouth and neck passes through the temporary fastening area, and thereby the mouth of the container body In the lid temporary mounting device that rotates the lid in the closing direction with respect to the neck,
At least a distance larger than the outer diameter of the mouth and neck of the container body but smaller than the outer diameter of the lower end of the skirt wall of the lid extends from the downstream end of the lid fitting area downstream along the conveyance path. When a container body having a pair of straightening rails and having a lid fitted on the mouth and neck is conveyed downstream from the lid fitting area, the pair of straightening rails is provided at the lower end of the skirt wall of the lid. The lid temporary mounting device characterized by acting on the lid to correct the lid to a substantially horizontal state. The pair of straightening rails extends at least to the upstream portion of the temporary fastening area, and even if the lid is rotated by the action of the temporary fastening means in the upstream portion of the temporary fastening area, The engagement of the female engaging means of the lid and the male engaging means of the mouth and neck of the container body is not started by limiting the lowering of the lid by the straightening rail. Lid temporary mounting device. The said conveying means conveys a container main body substantially horizontally, and this pair of correction | amendment rails are made to incline at the inclination angle of 0 thru | or 5 degree | times at least partially toward the downstream downstream. Lid temporary mounting device. An elastic biasing means for elastically biasing the lid that is fitted to the mouth and neck of the container body downward is provided at least in the range from the downstream end of the lid fitting area to the upstream portion of the temporary fastening area. The lid temporary mounting device according to claim 1, wherein the lid temporary mounting device is provided. The lid temporary mounting device according to claim 4, wherein the elastic biasing means is composed of a plurality of leaf spring members arranged in the transport direction.

Images