JP6264829B2 - Packaging equipment - Google Patents

Description

  The present invention relates to a packaging device.

  A packaging device that wraps an article to be packaged with a film drawn from a film roll is known (see, for example, Patent Document 1).

Utility Model Registration No. 2524115

  By the way, there is a demand for expanding the wrappable dimensions for an object to be packaged by the packaging device. Specifically, there is a desire to increase the size of the packaging device casing, and more specifically, to increase the packageable size of the packaged object without increasing the depth dimension of the packaging device casing.

  The packaging device has a film latching part that latches and holds the film between the upper plate and the lower plate, draws the film and stretches it on the packaging part, pushes up the packaged object from below the film, In the case of a type that wraps an article to be packaged, for example, it is possible to enlarge the stretched film by shifting the film hooking portion to the back side (upstream side in the film feeding direction) of the packaging device. However, there is a problem that the depth of the casing of the packaging device becomes large.

  In addition, when the upper plate is supported by the casing of the packaging device by the rotating shaft, for example, when replacing the film, only the mounting position of the rotating shaft is installed so that the upper plate does not interfere with the film roll. If the lower plate is shifted to the rear side (upstream side in the film feeding direction) and the lower plate is fixed as it is, the following problem occurs. Specifically, the rotational center of the rotation shaft is shifted to the back side of the packaging device (upstream side in the film feeding direction) from the tip of the upper part of the film retaining portion, and the tip of the upper plate is the lower plate. There is a problem of contact and collision.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a packaging apparatus having a large packaging possible size without increasing the casing size (machine length) of the packaging apparatus.

The packaging device of the present invention is such that the leading end of the film drawn out from the film roll is hooked and held by the upper plate and the lower plate, the film held and held is fed to a predetermined position, and the fed film In the packaging apparatus for packaging an article to be packaged, it has a rotating shaft for rotating the upper plate, the upper plate is rotated by the rotating shaft, and a film is formed by the upper plate and the lower plate. opposite in a state of stopping holding the downstream side of the feeding direction off Irumu than the rotary shaft, and the distal end position, the axis of rotation, in order to hook holding the film leading end, said on a plate to the lower plate A first position to be rotated and a second position spaced from the first position, and the rotation shaft is configured to move the upper shaft at the first position. The lower plate is capable of holding the film front end in cooperation with the upper plate at the first position, and is located upstream of the front end of the film. when away from the first position, the lower plate have a mechanism for retracting the rotating range of the upper plate, the lower plate is retracted from the range of rotation of the upper plate, the lower plate and the upper plate characterized in that it have a interlocking mechanism.

  ADVANTAGE OF THE INVENTION According to this invention, the packaging apparatus with a large packaging possible dimension can be provided, without enlarging the housing | casing dimension (captain length) of a packaging apparatus.

The external appearance perspective view which shows an example of the packaging apparatus which concerns on embodiment of this invention. The external appearance perspective view which shows an example (at the time of film roll replacement | exchange) in which the display operation panel of the packaging apparatus which concerns on embodiment of this invention was located upwards. The vertical side view which shows an example of the packaging apparatus which concerns on embodiment of this invention. The perspective view which shows an example of the principal part of the packaging apparatus which concerns on embodiment of this invention. The figure which shows an example of the operation | movement at the time of film replacement of the packaging apparatus which concerns on embodiment of this invention, (a) is a figure which shows an example of the operation | movement which attaches a film to an upper plate, (b) is a film by an upper plate and a lower plate The figure which shows an example of the operation | movement to latch. The figure which shows an example of operation | movement of the upper plate of the packaging apparatus which concerns on embodiment of this invention, a lower plate, etc. (The state which an upper plate is located upwards rather than the lowest position (1st position)). The figure which shows an example of operation | movement of the upper plate of the packaging apparatus which concerns on embodiment of this invention, a lower plate, etc. (The state which an upper plate is located in the vicinity of the lowest position (1st position)). The figure which shows an example of operation | movement of the upper plate of the packaging apparatus which concerns on embodiment of this invention, a lower plate, etc. (an upper plate is the lowest position (1st position)). The figure which shows the modification of the packaging apparatus which concerns on embodiment of this invention, (a) is a figure which shows the state which the back gripper and the lower plate have spaced apart, (b) is the state which the back gripper and the lower plate contacted The figure to show, (c) is a figure which shows the state which the back gripper and the lower plate have overlapped.

An example of a packaging device according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an external perspective view showing an example of a packaging device 100 according to an embodiment of the present invention. FIG. 2 is an external perspective view showing an example of a state in which the display / operation panel 72 of the packaging apparatus 100 is positioned upward (when the film roll is replaced). FIG. 3 is a longitudinal side view showing an example of the packaging device 100. FIG. 4 is a perspective view showing an example of a main part of the packaging device. FIG. 5 is a diagram illustrating an example of the operation of the packaging device during film replacement. Specifically, FIG. 5A shows an example of an operation for attaching the film 2 to the upper plate UP, and FIG. 5B shows an example of an operation for hooking the film 2 by the upper plate UP and the lower plate DP. FIG.

  A packaging apparatus 100 according to an embodiment of the present invention includes a carry-in unit 101 provided in the front (front) of an apparatus machine frame 3 as a casing, a transport unit 102 provided in the apparatus machine frame 3, and an apparatus machine frame. 3 is provided on the front side of the film drawing unit (film drawing mechanism) 103 provided in 3, the packaging unit 104 provided on the upper surface of the apparatus frame 3, the taking-out unit 105 for taking out the article W to be packaged, and the taking-out unit 105. A heater 106, a movable display operation panel 72 provided on the upper portion of the packaging device 100, and the like are included. The display / operation panel 72 includes an operation unit 67 and a display unit 70. A film roll housing part E for housing the film roll e is provided inside the apparatus frame 3 on the back side of the display unit 70. A lid portion 3d is provided above the film roll housing portion E.

  In addition, the apparatus frame 3 is provided with a transport unit 102 in the lower part 3a, a film drawing part 103, a packaging part 104, a take-out part 105, etc. in the intermediate part 3b, and a display operation panel 72, a film roll in the upper part 3c. The accommodating part E etc. are arrange | positioned. The film roll accommodating part E is formed above the packaging part 104, and accommodates the film roll e detachably held in the apparatus machine frame 3 by the film roll holding part H having the film roll set shaft 110.

  Moreover, the film roll accommodating part E is covered with the plate | board member or the vinyl member of the apparatus frame 3 on the back side and both sides, and the upper surface side is covered with the cover part 3d formed with the plate member. When the film roll e is replaced, if the movable display / operation panel 72 is moved upward by an operation of an operator or the like, an opening having a size capable of replacing the film roll e is provided on the front side of the film roll housing portion E. A portion Ep is formed.

  An article W (product) to be packaged is placed on the carry-in unit 101. The carry-in unit 101 includes a weighing unit 5 and a package placement table AT connected to the weighing unit 5. The weighing unit 5 measures the packaging object W placed on the packaging object mounting table AT.

  The conveyance unit 102 includes a conveyance table C and a drive mechanism D that drives the conveyance table C. The drive mechanism D is provided in the lower part in the apparatus frame 3, and supports the conveyance platform C so as to be movable in the horizontal direction and the vertical direction.

  The film drawer 103 grasps the leading end of the film 2 of the film roll e, pulls it to a predetermined position of the packaging unit 104 in the horizontal direction, and holds the film 2 in a tensioned state. The rear gripper G that holds the end in a tensioned state, the motor 410 that drives the front gripper F in the front-rear direction via the timing belt 413, and the rear gripper G that drives in the front-rear direction via the timing belt 414 A motor 411, a cutter K for cutting the film 2, and the like.

  In the packaging unit 104, the front gripper F, the rear gripper G, and the left and right grippers (not shown) hold the film 2 in a tensioned state by a predetermined amount, and the drive mechanism D holds the article W to be packaged on the transport table C. The upper surface of the article to be packaged W is covered with the film 2 and the end of the film 2 is folded into the bottom of the article to be packaged W by the folding plate 15 of the front and rear folding device and the folding plate 20 of the left and right folding device.

The take-out unit 105 is a place for taking out the article W to be packaged wrapped with the film 2.
The heater 106 is provided in a plate-like member in front of the take-out portion 105 and is configured to be heated by energization. When the folding margin of the film 2 that wraps the article W to be wrapped is pressed against the heater 106, the bottom of the article 1 is heat sealed.

The operation unit 67 is an operation input device such as an operation key or a touch panel.
The display unit 70 appropriately displays a screen related to the packaging process, a message, various data stored in the storage unit, and the like.

  The film clamping part A (film tip holding part) shown in FIG. 5 has a pair of upper and lower upper plates UP and lower plate DP formed in a comb-like shape, below the roll set part and behind the packaging part. The film 2 is disposed in a state of being opposed in parallel with a gap that allows the leading end of the film 2 to be inserted between the drawing level surface (drawing level height position) of the film 2 that is drawn horizontally by the film drawing mechanism. Consists of.

  The lower plate DP is formed, for example, in a plane rectangular shape with a length extending in the width direction on both sides of the apparatus machine frame 3, and a continuous film-shaped film hooking portion 8 is formed on the front edge thereof in the packaging portion direction. , Disposed at the rear position of the packaging portion 104. The upper plate UP is formed in the same planar rectangular shape facing the lower plate DP with an appropriate gap so that the front end of the film 2 can be inserted and interposed between the upper plate UP and the film retaining portion 9 having a continuous uneven shape. The sandwiching side portion 10 formed on the edge and the sandwiching side portion 10 is bent at a substantially right angle from the rear edge of the sandwiching side portion 10 so that the sandwiching side portion 10 is positioned at a position near the roll set portion (on the roll set portion). A rotation axis of a rotation mechanism 12 which will be described later. The upper end of the connection side portion 11 is formed in a substantially L shape from the connection side portion 11 continuously formed so as to be movable to the vicinity of the lower position. 13 is fixed and supported by the rotation mechanism 12 so that the holding side portion 10 is opposed to the lower plate DP in parallel with a gap that can be set and held with the front end of the film 2 inserted. It is configured.

  And as shown in FIG. 10, the process which improves the adhesiveness of the film 2 on the film contact surface 10a (surface of the film latching | locking part 9) of the clamping side part 10, and prevents the film 2 tip from removing carelessly. Apply. Further, the surface opposite to the film contact surface 10a (the back surface of the film retaining portion 9, that is, the upper film clamping surface) is roughened on the opposite side to reduce the adhesion to the film 2. . In contrast, the upper surface of the lower plate DP, that is, the lower film clamping surface, is subjected to a process for improving the adhesion of the film 2. In addition, as a process which improves adhesiveness, a mirror surface finishing process, a chromium plating process, etc. are mentioned.

  Moreover, the protrusion base part of each film latching | locking part 9 of upper side film clamping part A-1 winds the front-end | tip width direction edge according to the film width (size) used properly according to the magnitude | size of the to-be-packaged goods W to wrap. A notch 14 is provided.

  As shown in FIG. 5, a guide roller 115 is provided behind a right angle portion (vertical portion) in the continuous side portion 11 of the upper plate UP. The guide roller 115 is set so that the film 2 does not touch the continuous side portion 11 when the film 2 is pulled out from the film roll e and the leading end thereof is set and held in the film holding portion A. When the held tip is gripped by the film drawing mechanism and the film 2 is pulled out to the packaging portion, these guides are provided so that the film 2 is smoothly pulled out to the packaging portion without touching the continuous side portion 11. Do.

  The rotation mechanism 12 rotates the upper plate UP from the opposing position on the lower plate DP to the lower position of the roll set unit, and then returns the upper plate UP to the opposing position on the lower plate DP. The operation is performed. The rotating mechanism 12 horizontally supports a rotating shaft 13 that firmly supports and supports the upper end of the continuous side portion 11 of the upper plate UP between both standing frames provided upright on both sides of the packaging portion 104. 13 has a gear 315 fixedly attached to one end projecting portion thereof, and has a tooth portion meshingly connected to the gear 315, and an operation lever 16 for rotating the rotary shaft 13 through the gear 315 is slid forward and backward to the upright frame. Mount freely. By performing an operation of pulling the operation lever 16 toward the front side, the upper plate UP is rotated from the facing position on the lower plate DP to the lower position of the roll setting portion, and the holding side portion 10 is positioned at the position, Then, by performing an operation of pushing the operation lever 16 to the rear side, it is configured to rotate from the lower position of the roll setting section to the facing position on the lower plate DP and to return the holding side section 10 to the position. .

The operation lever 16 is formed in a belt plate shape having an appropriate length, and has a tooth portion that meshes with the gear 315 at one side edge (lower edge) of the long side, and a stopper piece 17 (to be described later) in the middle of the front end. A locking portion 16a for abutting locking is provided, and a gripping rod 16b that an operator grips at the time of operation is provided at the end of the locking portion 16a.
The rod support 18 is attached to the outer surface of the standing frame with one end axially attached to the protruding end of the rotating shaft 13 on which the gear 315 is fixedly supported. The eaves support 18 supports the operation lever 16 so as to be slidable back and forth so that the engagement state of the operation lever 16 with the gear 315 is not removed. A rolling roller 19 that holds the long side other side edge (upper side edge) is provided with a shaft stop (see FIG. 4).

  The operation lever 16 is fitted between the gear 315 and the rolling roller 19 of the rod support 18 with the tooth portion engaged with the gear 315, so that the operation lever 16 can be slid forward and backward on the outside of the standing frame. The That is, by performing an operation of pulling the operation lever 16 forward, the upper plate UP is rotated upward (clockwise) with the rotation shaft 13 as a fulcrum, so that the holding side portion 10 for hooking the leading end of the film 2 is provided. It can be located below the roll set part from the opposing position on the lower plate DP. Then, by performing an operation of pushing the operation lever 16 rearward, the upper plate UP is rotated downward (counterclockwise) about the rotation shaft 13 as a fulcrum to hold the leading end of the film 2. Can be returned from the position near the roll set portion B to the facing position on the lower plate DP.

  The packaging device 100 may include a spring material (not shown) having one end attached to the upright frame in a state where the upper plate UP is wound around the rotary shaft 13 that rotatably supports the upper plate UP. The spring material rotates the upper plate UP from a position near the roll set portion B (near the lower position of the roll set portion B) to an opposing position on the lower plate DP, thereby lowering the lower plate DP (lower film clamping portion A). -2) When the above operation of returning the holding side portion 10 to the upper side is performed, by receiving the movement of the upper plate UP just before (before) the holding side portion 10 of the upper plate UP returns to the lower plate DP, It plays the role of notifying the operator that the clamping side portion 10 of the upper plate UP has approached the lower plate DP.

  Then, the upper plate UP is further rotated from the receiving position by the operation lever 16, and the operation of returning the holding side portion 10 to the opposite position on the lower plate DP is performed, so that the upper plate UP is moved upward (clockwise). It is comprised so that the spring force which rotates may act on. That is, after performing the above operation of returning the sandwiching side portion 10 onto the lower plate DP, an operation of engaging the locking portion 16a of the operation lever 16 with the stopper piece 17 is performed, so that the rotation shaft 13 and the gear 315 are interposed. The movement of the operation lever 16 in the forward direction (front direction of the packaging machine) due to a spring material (not shown) acting on the operation lever 16 is received by the stopper piece 17 and the holding member 21, thereby holding the holding side portion 10 on the lower plate It is located at the opposite position (predetermined position) on the DP, and its positioning state is maintained. That is, the set state in which the leading end of the film 2 is inserted and interposed between the sandwiching side portion 10 of the upper plate UP and the lower plate DP (lower film sandwiching portion A-2) is maintained.

  The stopper piece 17 moves the operating lever 16 downward at the position where the above operation is performed to return the holding side portion 10 of the upper plate UP to the opposite position on the lower plate DP, so that the locking portion 16a on one end side of the stopper piece 17 Install on the outside of the upright plate that can be locked. The holding member 21 is formed when the operation lever 16 is formed in a shape that can be inserted in a loose fit during the operation, and the locking portion 16 a of the operation lever 16 is abutted and locked to the stopper piece 17. The upper edge of the operation lever 16 is attached to the outer surface of the upright plate which can be engaged and locked at a position where the gear 315 is sandwiched between them (see FIG. 4). A retaining piece 22 may be provided at the rear end of the operating lever 16 so as not to be detached from the holding member 21 when the operating lever 16 is slid to the front side.

  Then, according to the packaging apparatus of the present embodiment having the film set structure, the upper plate UP is pivoted about the rotating shaft 13 as a fulcrum by operating the operating lever 16 as if it is pulled to the front side, The side part 10 is positioned behind the film roll e. Then, the film 2 e of the film roll e is grasped with both hands, and after the film 2 is pulled out from the film roll e until the front end is hooked on the film hooking portion 9 of the holding side portion 10, the tip of the film 2 is hooked on the film. The film 9 is brought into contact with the film contact surface 10a whose adhesion is improved by mirror finishing or the like of the portion 9, and the film edges on both sides are wound and hooked (see FIG. 5).

  Thereby, there is no possibility that the front end of the film 2 is detached from being hooked in a state of being in close contact with the film contact surface 10a. Thereafter, by operating the operation lever 16 as if it is pushed rearward, the upper plate UP is rotated downward about the rotating shaft 13 while pulling the film 2 from the film roll e, and the tip of the film 2 is hooked. The leading edge of the film 2 is interposed between the lower plate DP (lower film clamping portion A-2) with the holding side portion 10 opposed to the lower plate DP. At this time, the holding side portion 10 is placed on the lower plate DP by lowering the operating lever 16 so that a spring (not shown) acts to engage the engaging portion 16a of the operating lever 16 with the stopper piece 17. It can be fixed and held. Thereby, the setting of the film 2 front end to the film clamping part A of the packaging part 104 is completed.

  In addition, when the top part of the film 2 is clamped by the upper and lower film clamping parts A-1 and A-2, as described above, the upper film clamping surface has low adhesion to the film 2, and the lower film clamping part A-1, A-2 The film 2 is sandwiched in a state where the adhesion between the film clamping surface and the film 2 is enhanced.

  For this reason, when the film 2 is cut by the film cutting mechanism (cutter K) disposed above the front end portion of the film holding portion A, the front end portion of the film 2 is in close contact with the lower film holding surface. Held in a state. And, when the film pulling mechanism grips and pulls out the leading edge of the film 2, the gripping surface is positioned slightly above the lower film clamping surface, so that the film 2 is closely attached when the film is pulled out. The film 2 can be pulled out without resistance by contacting only the lower film holding surface having low properties.

  In the above-described embodiment, the rotation shaft 13 that rotatably supports the upper film clamping portion A-1 is operated by the operator of the operation lever 16 disposed at a position where the rotation shaft 13 can be operated from the front side of the packaging device. Although the structure which rotates by manual operation and moves the upper plate UP is employ | adopted, about the specific structure which rotates upper plate UP (upper film clamping part A-1), the structure of an Example detailed explanation The form is not limited. For example, it is conceivable to automatically rotate the upper film clamping portion A-1 by a driving means such as a motor. In this case, the start switch of the driving means is disposed at a position where it can be operated from the front side of the apparatus. Further, as a process for improving the adhesion to the film, a mirror finishing process, a chrome plating process, and a metal foil may be attached. However, a mirror finishing process is preferable in consideration of cost and adhesion.

  In the packaging device 100, each component is comprehensively controlled by a control device (not shown) and performs a predetermined packaging process. The control device includes, for example, a CPU, a ROM, a RAM, an operation unit, various motors, various sensors, and the like.

  FIG. 6 is a view showing an example of the operation of the upper plate UP and the lower plate DP of the packaging apparatus 100 according to the embodiment of the present invention (the state where the upper plate UP is located above the lowest position (first position)). ). FIG. 7 is a view showing a state in which the upper plate UP of the packaging device 100 is located in the vicinity of the lowest position (first position). FIG. 8 is a diagram illustrating a state in which the upper plate UP of the packaging device 100 is located at the lowest position (first position).

  As shown in FIGS. 6, 7, and 8, the packaging device 100 includes a film roll e, an upper plate UP, a rotating shaft 13 that rotates the upper plate UP, a lower plate DP, and the like. Moreover, the packaging apparatus 100 has an interlocking mechanism 200 for the upper plate UP and the lower plate DP. The film roll e is provided downstream of the rotating shaft 13 in the film feeding direction.

<Upper plate UP>
The upper plate UP is configured to be rotated by the rotation shaft 13. Further, the upper plate UP is configured such that the tip thereof is positioned downstream of the rotating shaft 13 in the film feeding direction in the state in which the film 2 is held by the upper plate UP and the lower plate DP.

<Rotating shaft 13>
The rotary shaft 13 is configured to be rotatable to a first position where the upper plate UP faces the lower plate DP and a second position spaced from the first position in order to latch and hold the film leading end. ing. Further, the rotation shaft 13 is configured to be located upstream of the tip of the upper plate UP in the film feeding direction at the first position (see FIG. 8).
A rod 13 c that prevents contact between the film 2 and the rotating shaft 13 is provided in the vicinity of the rotating shaft 13. The surface of the rod 13c is subjected to a surface treatment for reducing the frictional resistance with the film 2. The rod 13c may be configured to be rotatable.

<Lower plate DP>
The lower plate DP can hold the film tip in cooperation with the upper plate UP at a first position where the upper plate UP and the lower plate DP face each other, and the upper plate UP is separated from the first position. At this time, the tip of the lower plate DP is configured to be movable in a direction away from the first position with respect to the upper plate UP.
Moreover, the front-end | tip part of lower plate DP is arrange | positioned in the film delivery direction downstream rather than the rotating shaft 13 in the 1st position.

<Interlocking mechanism 200>
The interlocking mechanism 200 is configured to retract the lower plate DP from the rotation range of the upper plate UP when moving the upper plate UP to the second position.

Specifically, the interlocking mechanism 200 is disposed at a position pressed by the pressing portion UR (roller) provided directly on the upper plate UP or indirectly through another member and the pressing portion UR of the upper plate UP. The first link 201, the second link 202 connected to the lower plate DP, and the third link 203 provided between the first link 201 and the second link 202.
Further, the packaging device 100 includes a link mechanism that can retract the lower plate DP from the rotation range of the upper plate UP by pressing by the pressing portion UR and biasing by a biasing unit (described later). This link mechanism includes the first link 201, the second link 202, the third link, and the like described above.

<First link 201>
One end of the first link 201 is rotatably supported by the housing 211 of the packaging device 100 by means of a bearing 211, and the other end is a first link pin on the first link side end of the third link 203. 221 are connected to each other. An abutting portion 201a that can abut against a pressing portion UR provided directly or indirectly on the upper plate UP is provided on the upper portion of the first link 201.

<Second link 202>
The second link 202 is pivotally supported by a bearing 212 at the substantially central portion of the casing of the packaging device 100, and a lower plate DP is connected downstream of the bearing 212 in the film feeding direction. Also, the upstream end portion in the film feeding direction is connected to the second link side end portion of the third link 203 via the second connecting pin 222.

<Third link 203>
The third link 203 has one end connected to the first link 202 via the first connecting pin 221 and the other end connected to the second link via the second connecting pin 222.

<Biasing means 240>
The biasing means 240 is configured by a spring or the like, and biases the third link 203 or the first link 201 in the opposite direction with respect to the second link 202. In this embodiment, the upper end of the spring as the biasing means 240 is fixed to the casing of the packaging device 100, and the lower end of the spring is connected to the vicinity of the end of the third link 203 (first link side end). Has been. The biasing means 240 also has a function of defining the upper limit positions of the first link 201 and the third link 203.
Note that the restricting means 250 that defines the upper limit positions of the first link 201 and the third link 203 may be provided separately from the urging means 240.

  In the present embodiment, a regulating member 252 that defines the lower limit position of the first link 201 is provided below the first link 201.

<Operation>
Next, an example of operation | movement of the interlock mechanism 200 of the packaging apparatus 100 mentioned above is demonstrated.

  For example, when the operation of pulling the operation lever 16 to the near side is performed, the first link 201 is not pressed by the pressing portion UR (roller) provided directly or indirectly on the upper plate UP, and the biasing means The biasing force 240 causes the first link 201, the third link 203, and the second link 202 to move in a predetermined direction, and the tip of the lower plate DP moves away from the first position with respect to the upper plate UP. (See FIG. 6).

  For example, when the operation lever 16 is pushed into the back side of the apparatus, the first link 201 is pressed in the direction opposite to the urging direction by the urging means 240 by the pressing portion UR of the upper plate UP. The link 201, the third link 203, and the second link 202 move in a predetermined direction, and the lower plate DP cooperates with the upper plate UP and is positioned at a first position that holds the leading end of the film 2 (FIG. 7, (See FIG. 8).

<Modification>
FIG. 9 is a view showing a modified example of the packaging device 100 according to the embodiment of the present invention. Specifically, FIG. 9A is a view showing a state in which the rear gripper G and the lower plate DP are separated from each other, and FIG. 9B is a view showing a state in which the rear gripper G and the lower plate DP are in contact with each other. 9 (c) is a view showing a state where the rear gripper G and the lower plate DP are overlapped.

  In the packaging device 100 according to the embodiment of the present invention, the rear gripper G moves rearward with the front end portion of the lower plate DP lowered downward (second position), and the front end portion and the rear portion of the lower plate DP are moved. Even when the gripper G collides, it may have a damage prevention mechanism for preventing the lower plate DP and the rear gripper G from being damaged. Hereinafter, this damage prevention mechanism will be described in detail.

  The front gripper F is configured so as to be movable in the front-rear direction of the apparatus while sandwiching the downstream end in the film feeding direction. The rear gripper G is configured so as to be movable in the front-rear direction of the apparatus while sandwiching the upstream end in the film feeding direction.

The lower plate DP has a bent portion DPv bent upward at the tip thereof.
The rear gripper G has an inclined portion Gv that can come into contact with the bent portion DPv of the lower plate DP.

  When the rear gripper G collides with the lower plate DP, the inclined portion Gv of the rear gripper G moves the front end of the lower plate DP in the first position direction (upward).

  In this way, even when the rear gripper G moves rearward with the tip portion of the lower plate DP lowered downward (second position), the lower plate DP is inclined by the inclined portion Gv of the rear gripper G. Since the tip of the first plate is moved in the first position direction (upward), the lower plate DP and the rear gripper G can be prevented from being damaged.

As described above, the packaging apparatus 100 according to the embodiment of the present invention holds and holds the leading end of the film 2 pulled out from the film roll e with the upper plate UP and the lower plate DP. The film 2 being held is gripped by the front gripper F and the rear gripper G and fed to a predetermined position, and the article W to be packaged is packaged by the fed film 2. The packaging device 100 includes a rotating shaft 13 that rotates the upper plate UP. The film roll e is provided downstream of the rotating shaft 13 in the film feeding direction.
The upper plate UP is rotated by the rotating shaft 13 and the tip of the upper plate UP is located downstream of the rotating shaft 13 in the film feeding direction when the film 2 is held by the upper plate UP and the lower plate DP. Configured to be located.
The rotary shaft 13 is configured to be rotatable to a first position where the upper plate UP faces the lower plate DP and a second position spaced from the first position in order to latch and hold the film leading end. And the rotating shaft 13 is located upstream from the film feed direction of the upper plate UP at the first position.
The lower plate DP can hold the leading end of the film in cooperation with the upper plate UP at the first position. When the upper plate UP is separated from the first position, the lower plate DP is moved to the upper plate UP. A mechanism for retracting from the rotation range is provided.
Specifically, the lower plate DP cooperates with the upper plate UP to hold the film front end, and in a moving state in which the upper plate UP is separated, the front end is first with respect to the upper plate UP. The lower plate DP is configured to be movable in a direction away from the position, and the lower plate DP is disposed downstream of the rotating shaft 13 in the film feeding direction at the first position.
And the packaging apparatus 100 has the interlocking mechanism 200 of the upper plate UP and lower plate DP which retracts the lower plate DP from the rotation range of the upper plate UP when moving the upper plate UP to the second position.
For this reason, even if it is the positional relationship where the rotation center of the rotating shaft 13 shifted | deviated from the front-end | tip part of the upper part UP of the film latching part to the back | inner side of the packaging apparatus 100 (direction opposite to the film delivery direction), By providing the interlocking mechanism 200, the tip portion of the upper plate UP can be prevented from contacting and colliding with the lower plate DP.
That is, it is possible to provide the packaging device 100 having a large packaging possible size without increasing the housing size (machine length) of the packaging device 100.

In addition, as described above, the interlocking mechanism 200 according to the embodiment of the present invention includes the pressing portion UR (roller) provided directly on the upper plate UP or indirectly via another member, and the pressing of the upper plate UP. The third link 203 provided between the first link 201 disposed at the position pressed by the part UR, the second link 202 connected to the lower plate DP, and the first link 201 and the second link 202. And having.
For this reason, the interlocking mechanism 200 can be realized with a simple structure.

An example of the effect of the packaging device 100 according to the embodiment of the present invention can be summarized as follows.
1. The packaging possible size by the packaging apparatus 100 can be expanded.
2. In order to increase the film feed amount (maximum) without changing the dimensions of the mechanism part of the main body of the packaging device, the packaging push-up position of the article W (product) to be packaged can be made the same while shifting the film standby position. it can.
3. The packaging device 100 has increased the amount of film that can be used while remaining within the size range of the casing of a general packaging device.

As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and there are design changes and the like without departing from the gist of the present invention. Is included in the present invention.
Further, the embodiments described in the above drawings can be combined with each other as long as there is no particular contradiction or problem in the purpose and configuration.
Moreover, the description content of each figure can become independent embodiment, respectively, and embodiment of this invention is not limited to one embodiment which combined each figure.

For example, the packaging device 100 of the above embodiment has the interlocking mechanism 200 that can retract the lower plate DP in conjunction with the movement of the upper plate UP, but it does not need to have such an interlocking mechanism 200. Good. Specifically, the packaging device 100 may have a structure that retracts the lower plate DP without interlocking with the movement of the upper plate UP.
Specifically, the packaging apparatus 100 may be provided with a drive mechanism that moves the lower plate downward without being interlocked with the movement of the upper plate UP, for example. By doing so, interference between the lower plate DP and the upper plate UP can be easily avoided with a simple structure. The packaging device 100 may have a configuration that allows the lower plate DP to move away from the upper plate UP while maintaining the parallelism of the upper plate UP and the lower plate DP at the first position.
Further, in the case described above, it is preferable that an operation of separating the upper plate UP from the upper plate UP by the lower plate DP is performed before the rotating operation of the upper plate UP from the first position to the second position.

As mentioned above, although embodiment of this invention was described, some or all of embodiment of this invention is described as the following additional remarks.
[Appendix 1]
The top end of the film drawn from the film roll is hooked and held by the upper plate and the lower plate, the film held by the hook is gripped and fed to a predetermined position, and the package is wrapped by the fed film. In packaging equipment,
A rotating shaft for rotating the upper plate;
The film roll is provided on the downstream side in the film feeding direction from the rotating shaft,
The upper plate is rotated by said rotary shaft, and, in a state that the hook holding the film by the lower plate and upper plate, the upstream side of the feeding direction off Irumu than the rotary shaft, the leading end position And
The rotary shaft is configured to be rotatable to a first position where the upper plate is opposed to the lower plate and a second position spaced from the first position in order to latch and hold the film leading end. And the rotation shaft is located on the downstream side in the film feeding direction from the tip of the upper plate in the first position,
The lower plate is capable of holding the film tip in cooperation with the upper plate at a first position, and when the upper plate is separated from the first position, the lower plate is moved to the upper plate. It has a mechanism for retracting the rotation range,
Packaging device, characterized in that the lower plate is retracted from the range of rotation of the upper plate to have a interlocking mechanism of the upper plate and the lower plate.
[Appendix 2 ]
The lower plate is configured such that a tip of the lower plate is movable in a direction away from the first position with respect to the upper plate, and the lower plate is moved from the rotation shaft at the first position. packaging device according to note 1, characterized in that it is also positioned under flow side of the film feeding direction.
[Appendix 3 ]
A pressing portion (roller) provided on the upper plate directly or indirectly through another member;
The supplementary note 1 or supplementary note 2 includes a link mechanism capable of retracting the lower plate from a rotation range of the upper plate by pressing by the pressing portion and biasing by the biasing means. Packaging equipment.
[Appendix 4 ]
The interlocking mechanism is
A pressing part (roller) provided on the upper plate directly or indirectly via another member;
Provided between the first link disposed at a position pressed by the pressing portion (roller) of the upper plate, the second link connected to the lower plate, and the first link and the second link. A third link provided,
One end of the first link is rotatably supported by the casing of the packaging device, and the other end is connected to the first link side end of the third link via a first connecting pin. And
The second link has a substantially central portion rotatably supported by a bearing on the casing of the packaging device, and the lower plate is connected upstream of the bearing in the film feeding direction. A downstream end of the direction is connected to a second link side end of the third link via a second connecting pin;
Biasing means for biasing the third link or the first link in the opposite direction with respect to the second link;
When the first link is pressed in the opposite direction to the urging direction by the urging means by the pressing portion (roller) of the upper plate, via the first link, the third link, and the second link The lower plate is in a first position for holding the film tip in cooperation with the upper plate;
When the first link is not pressed by the pressing portion (roller) of the upper plate, the lower plate is biased by the biasing force of the biasing means via the first link, the third link, and the second link. The packaging device according to Supplementary Note 1 or Supplementary Note 2, wherein the tip of the packaging device is configured to move in a direction away from the first position with respect to the upper plate.

13 Rotating shaft 100 Packaging equipment (packaging machine)
200 interlocking mechanism 201 first link 202 second link 203 third link 211, 212 bearing 221, 222 connecting pin 240 biasing means (spring, etc.)
250 restricting means 252 restricting member e film roll DP lower plate UP upper plate UR roller (pressing part)
W product (attachment, package)

Claims (2)

The top end of the film drawn from the film roll is hooked and held by the upper plate and the lower plate, the film held by the hook is gripped and fed to a predetermined position, and the package is wrapped by the fed film. In packaging equipment,
A rotating shaft for rotating the upper plate;
The upper plate is rotated by said rotary shaft, and, in a state that the hook holding the film by the lower plate and upper plate, the downstream side of the feeding direction off Irumu than the rotary shaft, the leading end position And
The rotary shaft is configured to be rotatable to a first position where the upper plate is opposed to the lower plate and a second position spaced from the first position in order to latch and hold the film leading end. And the rotation shaft is located upstream of the tip of the upper plate in the film feeding direction at the first position,
The lower plate is capable of holding the film tip in cooperation with the upper plate at a first position, and when the upper plate is separated from the first position, the lower plate is moved to the upper plate. It has a mechanism for retracting the rotation range,
Packaging device, it characterized in that the lower plate is retracted from the range of rotation of the upper plate to have a interlocking mechanism of the upper plate and the lower plate. The lower plate is configured such that a tip of the lower plate is movable in a direction away from the first position with respect to the upper plate, and the lower plate is moved from the rotation shaft at the first position. The packaging device according to claim 1, wherein the packaging device is also arranged on the downstream side in the film feeding direction .

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