JP5285634B2 - Film guide device for horizontal bag making and filling machine - Google Patents

Description

  The present invention relates to a film guide device for guiding a film drawn from a film supply source toward a bag making means in a horizontal bag making and filling machine configured to wrap an article to be wrapped with a belt-like film.

Conventionally, as a film guide device in this type of horizontal bag making and filling machine, for example, a configuration as disclosed in Patent Document 1 has been adopted.
As disclosed in this conventional configuration, the belt-like film drawn from the original roll is wound and guided by a plurality of guide rollers provided in the film transport path to reach the bag making means.

  And the film which passed through the guide roller supported by the arm extended diagonally downward above the supply conveyor is fed at a predetermined entry angle toward the bag making means.

Japanese Patent No. 3721534

  In the horizontal bag making and filling machine adopting such a configuration, it is not possible to ensure a sufficient space between the guide roller and the arm supporting the guide roller above the supply conveyor. For this reason, when performing operations such as cleaning of the supply conveyor and replacement of the bag making means, there has been a problem that workability is impaired due to the guide rollers and arms hindering the operation.

  The present invention has been made paying attention to such problems existing in the prior art. The object is to provide a film guide device in a horizontal bag making and filling machine that can secure a work space above the supply conveyor during maintenance work such as cleaning of the supply conveyor and replacement of bag making means, thereby improving workability. There is.

In order to achieve the above object, the present invention forms a strip-shaped film drawn out from a film supply source into a cylindrical shape by bag-making means, and supplies an article to be packaged toward the cylindrical film with a supply conveyor. In the horizontal bag making and filling machine configured as described above, a position-adjustable guide roller which is disposed above the supply conveyor and feeds and guides the film at a predetermined entry angle toward the bag making means at the guide position, and the guide A support member that supports the roller and is capable of rotating in the vertical direction, and an engaging portion that engages with the support member at a retracted position in which the support member is rotated upward, and holds the guide roller at the retracted position. One of the member, the support member, and the restricting member has a concave engaging portion and the other has a convex engaging portion, and the restricting member and the supporting member include the concave engaging portion and the convex Concave by the engaging part The support member and the restricting member are engaged with each other so as to hold the retracted position against the direction in which the support member rotates by its own weight, and has an operation portion to operate the operation portion. the restricting member and comprising a disengaging means for disengaging against the relative biasing force between those the regulation member and the support member and the support member, the guide roller guiding position and by It can be selectively held in the retracted position .

Accordingly, in the present invention, when cleaning the supply conveyor, etc., the guide roller is moved from the guide position of the film to the upper retracted position by the rotation of the support member, and the concave relationship between the regulating member and the support member. The guide roller can be locked against the direction of rotation by the weight of the support member and held in the retracted position by the engagement of the fitting portion and the convex engagement portion by fitting the concave and convex portions . Therefore, when the supply conveyor is cleaned, a required space can be formed above the conveyor to secure a maintenance work space such as a cleaning work, and the guide roller and the support member that supports the guide roller are operated. Work can be easily performed without hindrance, and workability can be improved.

In the above configuration, the support member and the regulating member are held by the concave and convex engagement by the concave engagement portion and the convex engagement portion between the guide position and the retracted position separately from the guide position. Preferably, the guide position is configured .

In the above-described configuration, the disengagement means is rotatably supported by a support shaft disposed at a position separated from the rotation fulcrum of the support member,
The operation portion includes an operation gripping portion disposed at a position separated from the support shaft, and the engagement between the support member and the regulating member is released by gripping the operation gripping portion and performing a rotation operation. It is preferable.

The said structure WHEREIN: It is preferable to provide the fixing means which fixes the said support member so that it cannot move in a downward guide position.
In the above configuration, the guide roller is supported so as to be movable with respect to the arm of the support member, and an entrance angle of the film fed from the guide roller toward the bag making means is set according to a support position of the guide roller. It is good to be able to change.

  In the above configuration, the support member includes an arm that supports the guide roller, and an engagement release unit that includes an engagement lever that is rotatably supported at an end of the arm, and the engagement lever is a restriction member. It is good to comprise so that it may engage above the engaging part.

  As described above, according to the present invention, when an operation such as cleaning of the supply conveyor is performed, the guide roller and the support member of the guide roller are moved to the upper retracted position, and the empty space above the supply conveyor is removed. Since the maintenance work space can be secured by expanding, it is possible to improve the workability of the supply conveyor cleaning work and the like.

The figure which shows the film guide apparatus in the horizontal bag-making filling machine of one Embodiment. The fragmentary broken view which looked at the film guide apparatus of FIG. 1 from the arrow Q direction. The expanded sectional view in the AA line of FIG. The figure which shows the operation state of the film guide apparatus of FIG.

  The horizontal bag making and filling machine according to the present embodiment shown in FIG. 1 is a bag making means 14 in which a belt-like film F drawn out from raw rolls 12A and 12B as film supply sources in a film supply unit 10 is disposed below. The article M is supplied into the cylindrical film F from the supply conveyor 13 at predetermined intervals, and a predetermined seal is applied to the film F to obtain a packaged product.

  The film supply unit 10 of this embodiment is as follows. That is, the belt-like film F drawn out from one of the two original fabric rolls 12A and 12B rotatably supported on the front surface of the frame 11 is wound around a plurality of guide rollers 16A to 16E arranged to be freely rotatable. It is hung and guided toward the bag making means 14 at a predetermined entry angle α.

  In addition, between each predetermined guide roller 16B and 16C, it connects with the drive means not shown, and the delivery roller 25 which draws out the film F from the original fabric rolls 12A and 12B is arrange | positioned.

  As shown in FIG. 1 and FIG. 2, a bracket 17 that is supported on the front surface of the frame 11 via a mounting bar 18 or the like with a space therebetween is disposed, and a guide roller 16 </ b> C is interposed between the frame 11 and the bracket 17. A support member 21 for supporting the guide rollers 16D and 16E is rotatably supported on a support shaft 19 that is rotatably supported and protrudes at both ends from the guide roller 16C.

A handle 20 is attached to one end of the support shaft 19 that penetrates the front surface side (outside) of the bracket 17, and the other end of the support shaft 19 is connected to the gear mechanism 28.
The support member 21 has a pair of arms 22 connected by a connecting bar 23, and these support shafts 19 can be rotated in the vertical direction integrally with the support shaft 19.

A male screw rod 26 is rotatably supported between the extending end of the arm 22 and the connecting bar 23 along the inner surface of each arm 22.
Each male threaded rod 26 is screwed with a support 24 that rotatably supports the guide rollers 16D and 16E. When the handle 20 is rotated, the rotation is transferred to the male threaded rod 26 via the gear mechanism 28. By being transmitted, each support 24 is configured to move in the extending direction of the arm 22.

  By the movement of the support 24, the positions of the guide rollers 16D and 16E with respect to the arm 22 are changed, and the film entrance angle α with respect to the bag making means 14 is adjusted so as to correspond to the size of the article M, the material of the film F, and the like. Is done.

  As shown in FIGS. 2 and 3, a support block 30 is fixed in the middle of the length direction of the connecting bar 23, which is the separating direction of the arms 22. A pair of engagement levers 31 that are spaced apart from each other by a predetermined distance in the left-right direction are supported by the support block 30 so as to be rotatable via a support shaft 32 at one end side, and at the other end side as engagement release means. A connecting pin 33 that also serves as an operation gripping part for rotating the engaging lever 31 is attached, and a concave engaging part 31a formed of a groove is formed on the lower surface of each engaging lever 31 at predetermined intervals. Has been.

A restricting member 34 that engages with the engaging lever 31 is disposed in the vicinity of the center in the length direction of the mounting bar 18.
The restricting member 34 is formed in a substantially U shape by a base portion 34b attached to the mounting bar 18 and a pair of side portions 34c extending downward from the left and right ends of the base portion 34b. A convex engaging portion 34a formed in a rod shape is provided between the lower ends.

  The engaging lever 31 and the restricting member 34 are configured such that the engaging lever 31 is positioned inside each side portion 34c of the restricting member 34 in the engaged state, and as shown in FIG. 3, the convex engaging portion 34a. And the respective concave engaging portions 31a of the engaging lever 31 are configured to engage and disengage with each other in a concavo-convex fitting relationship, and as shown in FIG. 4, the convex engaging portions 34a of the regulating member 34. The concave engaging portion 31a closest to the connecting pin 33 is engaged so as to be placed from above, and when the arm 22 is rotated, the guide rollers 16D and 16E are moved to the upper position which is the retracted position P2. Retained. On the other hand, as shown in FIGS. 1 and 3, the convex engaging portion 34 a of the regulating member 34 is engaged with a predetermined concave engaging portion 31 a that is a groove portion different from the retracted position in the engaging lever 31. Thus, the arm 22 is held at the guide position P1 where the film F is fed from the guide roller 16E to the bag making means 14 at the required entry angle α.

  The engagement lever 31 is formed of a material having a predetermined weight, and one end of the engagement lever 31 is supported by the support shaft 32 and rotates. A concave engagement portion is formed above the convex engagement portion 34a of the regulating member 34. Even when 31a is engaged, even if it receives a downward reaction force of the support member 21, the engagement state can be maintained and the guide rollers 16D and 16E can be held at the engagement position.

  As shown in FIGS. 1 and 2, the bracket 17 is formed with a long hole portion 35 extending in an arc shape around the support shaft 19, and the front arm 22 facing the bracket 17 has a long hole portion 35. A screw portion 36a of a fixing handle 36 as a fixing means inserted through is screwed. Then, in a state where the arm 22 of the support member 21 is located at a predetermined rotational position from the guide position P1 of the film F to the retracted position P2 of the guide rollers 16D and 16E, the arm 22 is attached to the bracket 17 by the fixing handle 36. On the other hand, it is fastened and fixed so as not to rotate.

Next, the operation of the film guide device in the horizontal bag making and filling machine of this embodiment will be described.
For example, when performing operations such as cleaning of the supply conveyor 13 and replacement of the bag making means 14, the fixing handle 36 with the guide rollers 16D and 16E positioned at the guide positions as shown in FIGS. After loosening the arm 22 and releasing the fixing of the arm 22, the connecting pin 33 is lifted, and the engagement lever 31 as the engagement release means is rotated in the direction of the arrow U (counterclockwise) in FIG. The engagement between the concave engaging portion 31a of the combination lever 31 and the convex engaging portion 34a of the restricting member 34 is released, so that the support member 21 can rotate.

  Next, the arm 22 is rotated upward in the direction of arrow V (clockwise) in FIG. 1, and the support member 21 is retracted upward from the guide position P1 of the film F shown in FIG. Move toward position P2.

  When the arm 22 reaches the retracted position P2, the engaging lever 31 is rotated clockwise and lowered downward, whereby the concave engaging portion 31a closest to the support shaft 32 of the engaging lever 31 is regulated. The support member 21 and the guide rollers 16D and 16E are held at the retracted position P2 by being placed on and engaged with the upper portion of the convex engagement portion 34a. Note that the support member 21 may be fixed to the same position so as not to rotate by tightening the fixing handle 36.

  Here, since the downward turning force always acts on the concave engaging portion 31a of the engaging lever 31 by the weight of the engaging lever 31, the engagement with the regulating member 34 is maintained without being released. .

  In this state, as shown in FIG. 4, the space is enlarged so that a required space is formed above the supply conveyor 13. For this reason, the guide rollers 16D and 16E and the support member 21 can be secured in the maintenance work such as the cleaning work of the supply conveyor 13 and the replacement work of the bag making means 14, so that a sufficient space can be secured without any obstacle. In addition, maintenance work and the like can be performed efficiently.

  Then, after the maintenance work is completed (when the supporting member 21 is fixed by the fixing handle 36, after the fixing is released), the engaging lever 31 is lifted and rotated counterclockwise. And the restriction member 34 are disengaged.

  Next, the arm 22 is rotated in the counterclockwise direction downward, and the support member 21 and the guide rollers 16D and 16E are moved to the guide position P1 of the film F, which is below the retracted position P2. At the guide position P1, by engaging the concave engagement portion 31a of the engagement lever 31 with the convex engagement portion 34a of the restricting member 34 in the groove portion of the convex engagement portion 34a that coincides with the initial position before the movement, The support member 21 is regulated and held at the guide position P1 of the film F.

  As a result, the guide rollers 16D and 16E and the support member 21 can be reliably returned to the initial positions before moving to the retracted position, and the arm 22 is moved to the guide position P1 and the retracted position P2 every time maintenance work such as cleaning is performed. The arm 22 can be held at a fixed position without changing at the time of returning to the guide position of the film F even when the operation of rotating and holding between them is repeated. Therefore, even when the guide position P1 is returned, the entry angle α of the film F with respect to the bag making means 14 is maintained at the previously set value. As described above, the support member 21 can be fixed to the same position in a non-rotatable manner by tightening the fixing handle 36. By fixing the support member 21 in the guide position in this way, the engagement of the engaging portions 31a and 34a is not erroneously released during the packaging operation.

Therefore, according to this embodiment, the following effects can be obtained.
(1) During maintenance work such as cleaning of the supply conveyor 13 and replacement of the bag making means 14, the support member 21 is rotated to move the guide rollers 16D and 16E toward the upper retreat position P2, and the regulating member 34 and the support member 21 can be engaged to hold the guide rollers 16D and 16E at the retracted position P2. Therefore, in such maintenance work, a space can be secured above the conveyor 13 to secure a work space, and the maintenance work can be quickly performed without the guide rollers 16D and 16E and the support member 21 being obstructed. It is possible to improve workability such as

  (2) The engaging portion between the support member 21 and the regulating member 34 includes a concave engaging portion 31a of the engaging lever 31 disposed on the supporting member 21 as one engaging portion, and a convex shape of the regulating member 34. By engaging or disengaging with the engaging part 34a in an uneven fitting relationship, the support member 21 can be easily held or released from the predetermined rotation position. Therefore, the guide rollers 16D and 16E can be easily switched between the guide position P1 of the film F and the upper retracted position P2.

  (3) A plurality of concave engaging portions in which the convex engaging portions 34a in the engaging portions are provided corresponding to a predetermined rotational position between the guide position P1 and the retracted position P2 of the guide rollers 16D and 16E. By selectively engaging with one of 31a, the support member 21 and the guide rollers 16D and 16E can be positioned and held. When the support member 21 is rotated downward to move the guide rollers 16D and 16E from the upper retracted position P2 back to the guide position P1 of the film F, the initial position before the movement of the convex engaging portion 34a is moved. Can be returned to the state in which the film F is accurately aligned without changing the predetermined entry angle α of the film F to the bag making means 14. Therefore, it is not necessary to carry out the setting operation of the appropriate film F entry angle α each time, and the work efficiency can be improved.

  (4) The support member 21 is fixed so as not to rotate at a required rotation position by the fixing handle 36 constituting the fixing means. For this reason, the guide rollers 16D and 16E can be reliably fixed without being displaced at the guide position P1 of the film F.

  (5) By supporting the guide rollers 16D and 16E so as to be movable in the extending direction of the arm 22 and changing the support position, the entrance angle α of the film F fed into the bag making means 14 changes. Adjusted as follows. Further, by selecting the engagement position between the convex engagement portion 34a of the restricting member 34 and the groove portion of the concave engagement portion 31a of the engagement lever 31, the angle at which the arm 22 extends downward and tilts is changed. Thus, the entry angle α of the film F with respect to the bag making means 14 can be adjusted. For this reason, the film F can be guided toward the bag making means 14 at an appropriate entry angle α using a combination of the support position of the guide rollers 16D and 16E in the extending direction of the arm 22 and the inclination angle of the arm 22. it can.

In this way, the approach angle α and the approach path of the film F toward the bag making means 14 can be set in a wide range in a complex manner.
(6) The support member 21 includes an arm 22 that supports the guide rollers 16D and 16E, and an engagement release means that includes an engagement lever 31 that is rotatably supported by the arm 22 at its end portion. In the portion 31 a, the engagement lever 31 engages above the engagement portion 34 a of the restriction member 34. Therefore, the engagement state can be maintained without being released due to the weight of the engagement lever 31, and the restriction member 34 and the engagement lever 31 can be simply connected only by the lifting operation of the engagement lever 31. Can be engaged and disengaged.

(Example of change)
In addition, this embodiment can also be changed and embodied as follows.
-In the said embodiment, the engaging means of the support member 21 and the control member 34 makes the concave engagement part 31a of the engagement lever 31 into a some groove part, and the convex engagement part 34a of the control member 34 is each groove part. The guide rollers 16D and 16E are held by a retracted position P2 which is configured to engage and which is a position where the support member 21 is rotated upward and a guide position P1 of the plurality of films F where the support member 21 is rotated downward. However, by setting the guide position of the film F to the lower end of rotation of the support member 21, at least the support member 21 is rotated upward and the guide rollers 16D and 16E are moved to the retracted position P2. What is necessary is just the engagement means which formed the concave engaging part 31a in one groove part so that it could hold | maintain in a position. Further, preferably, the concave engaging portion 31a may be formed by two grooves so as to hold the guide rollers 16D and 16E at the retracted position P2 and at one guide position P1, respectively.

  The guide rollers 16D and 16E disposed on the arm 22 may be one or more than three, and at least one guide roller that can be fed toward the bag making means 14 at a predetermined entry angle α is provided. You can do that.

  In the embodiment, the support member 21 is provided with the concave engagement portion 31a, and the restriction member 34 is provided with the convex engagement portion 34a. On the contrary, the support member 21 is convex. While providing the engaging portion, the regulating member 34 may be provided with a concave engaging portion. In addition, the configuration of these engaging portions includes, for example, a system in which a ball plunger or other plunger is provided as one engaging portion, and an engaging groove into which the plunger is fitted is formed as the other engaging portion. Various other engaging means such as a so-called ratchet type, in which the joint portion is formed by a linear or arc-shaped continuous chevron tooth portion and the other engaging portion is hooked on the chevron tooth portion and engaged therewith. Can be adopted.

  In the above-described embodiment, the engaging lever 31 is rotatably supported at the intermediate portion in the length direction of the connecting bar 23 disposed on the arm 22 of the support member 21 and is provided at a position corresponding to this. 34 is engaged with the convex engaging portion 34a. However, the position of the engaging means is not specified. For example, the position close to one arm 22 or the arm 22 is integrated. The structure arrange | positioned in this, the structure which arrange | positions an engaging means to each of both the arms 22, etc. are employable.

  As the fixing means for the arm 22, various other locking means such as a push-pull method and a hook type may be adopted as long as the support member 21 is fixed so as not to rotate without requiring a tool. Can do.

  Various specific configurations in the embodiment can be substituted with other ones as long as they do not contradict the gist of the present invention.

  DESCRIPTION OF SYMBOLS 12A, 12B ... Raw material roll, 13 ... Supply conveyor, 14 ... Bag making means, 16A-16E ... Guide roller, 19 ... Operation shaft, 20 ... Operation handle, 21 ... Support member, 22 ... Arm, 24 ... Support body, 26 ... male screw rod, 31 ... engagement lever (disengagement means), 31a ... concave engagement portion, 34 ... regulating member, 34a ... convex engagement portion, 36 ... fixing handle as fixing means, F ... film , M: Package object, α: Entry angle, P1: Guide position, P2: Retraction position.

Claims (5)

In a horizontal bag making and filling machine in which a band-shaped film drawn from a film supply source is formed into a cylindrical shape by bag making means, and an article to be packaged is supplied to the cylindrical film by a supply conveyor.
A position-adjustable guide roller that is disposed above the supply conveyor and feeds and guides the film at a predetermined entry angle toward the bag making means at a guide position;
A support member that supports the guide roller and is rotatable in the vertical direction;
A restricting member that includes an engaging portion that engages with the support member at a retracted position in which the support member is rotated upward, and holds the guide roller at the retracted position;
Either the support member or the restricting member has a concave engaging portion and the other has a convex engaging portion, and the restricting member and the supporting member have the concave engaging portion and the convex engaging portion. Engaging the support member and the restricting member with each other so as to hold the retracted position against the direction in which the support member rotates by its own weight;
Disengagement means for releasing the said regulating member by operating the operation unit and an operation unit against the relative biasing force between the support member and those of the regulation member the engagement between the supporting member With
A film guide device in a horizontal bag making and filling machine, wherein the guide roller can be selectively held at a guide position and a retracted position . Separately from the guide position, a guide position is formed between the guide position and the retracted position to hold the support member and the regulating member by fitting the concave and convex portions by the concave engaging portion and the convex engaging portion. film guiding device in horizontal bag filling machine according to claim 1, characterized in that the. The disengagement means is pivotally supported by a support shaft disposed at a position separated from a pivotal fulcrum of the support member,
The operation portion includes an operation gripping portion disposed at a position separated from the support shaft, and the engagement between the support member and the regulating member is released by gripping the operation gripping portion and performing a rotation operation. The film guide apparatus in the horizontal bag making and filling machine according to claim 1 or 2. The film guide device in the horizontal bag making and filling machine according to any one of claims 1 to 3, further comprising a fixing means for fixing the support member so as not to move at a lower guide position. The guide roller is supported so as to be movable with respect to the arm of the support member, and the entrance angle of the film fed from the guide roller toward the bag making means can be changed according to the support position of the guide roller. The film guide apparatus in the horizontal bag making and filling machine according to any one of claims 1 to 4, wherein

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