JP4973870B2 - Bag handling equipment - Google Patents

Description

  The present invention relates to a method and an apparatus for mechanizing bag handling, which is a pretreatment for bagging and packaging.

As an example of a bag separating mechanism, Japanese Patent Application Laid-Open No. 11-171136 discloses that a driving roller and a driven roller that reverses the driving roller are brought into contact with the vinyl, and the plastic roller is pushed down by rotating the driven roller forward and backward. A mechanism for pushing up and separating the bag is described. Further, Japanese Patent Application Laid-Open No. 11-180578 discloses a pair of cassettes for storing stacked medicine bags, a biasing plate for biasing the medicine bags from the bottom to the top, and a pair of corners at both ends of the medicine bag that are supported on the medicine bag take-out side. Each of the medicine bags with a medicine bag feeder in which a medicine bag is sandwiched between the urging plate and the roller, and the medicine bags sent out by the rotation of the roller are picked up by the said fingernail to take out the medicine bags one by one. In the case where the rigidity of the supporting area by the nail is different, a medicine bag feeder is described in which the supporting area of the nail that supports the area having high rigidity is reduced.
JP-A-11-171136 JP-A-11-180578

  Bag filling and packaging work is common in many industrial fields, but if the bags that are in close contact with each other due to the state of the bag bundle, or if they are entangled due to the processing state of the side, form a bag In some cases, the upper surface and the lower surface are in close contact with each other, which deteriorates work efficiency. As a countermeasure, it is effective to eliminate adhesion and entanglement of the bag body by pre-treatment for handling the bag body bundle before the bagging and packaging operation. However, since the conventional bag handling work has been mainly performed manually, labor saving and stabilization of the bag handling work has been demanded in order to further improve work efficiency. In addition, in a device for automating or semi-automating a series of bagging and packaging operations, a device having a bag separating function has been devised, but it is part of the function of a device using a dedicated bag, A large-scale device is required, and it has not been widely used in many bagging and packaging operations.

  Therefore, in the present invention, a bag separating apparatus is made independent so that it can be used in many bagging operations, and a devising method and a separating apparatus that can stably obtain a separating effect equivalent to that of manual work at a low cost are provided. For the purpose.

  In order to solve the above problems, the following means (1) to (5) are employed in the present invention.

(1) It has a bag body mounting part, a rotation drive part, and a rotating shaft support, and the shaft rotational speed is adjusted so that the bag body mounted on the rotating shaft winds around the rotating shaft. Different rotation radii are obtained for each sheet, and the adjacent bag bodies in the bag bundle are displaced from each other. If this is the case, if the bag bodies that are in close contact with each other due to the state of the bag body bundle, or if they are entangled with each other due to the processing state of the side, the upper surface and the lower surface forming the bag body are in close contact with each other It is possible to efficiently determine the close contact of the bag body.
Further, by adopting the following means (2) to (5) or the form of the embodiment described later, the bag handling function can be effectively exhibited.

(2) In the bag separation device, one or a plurality of resistors may be provided so that a non-attached portion contacts the resistor when the bag attached to the rotation shaft rotates. If it is such, a change can be given to the rotational speed of a bag body by contacting a bag body with a resistor in the middle of rotation of a bag body, and a bag body can be efficiently judged.

  (3) In the bag handling apparatus described above, the resistor may be a continuous brush. When the brush-like resistor is in contact with the bag body, the bag body can be more efficiently handled by giving different rotational speeds to the bag body.

  (4) In the bag handling apparatus described above, the resistor may be a brush-like one that rotates. If this is the case, by rotating the brush-like resistor, the rotational speed of the shaft is adjusted so that the non-mounted portion contacts the rotating resistor when the bag attached to the rotating shaft rotates. At the time of the contact, different rotational speeds are given to the respective bag bundles so that the bags in contact with each other are displaced, and the bags can be more efficiently handled.

  (5) In any one of the above-described bag handling devices, the bag mounting unit may fix any part of the bag bundle. If it is such a thing, both sides of a bag can be judged simultaneously, and a bag can be judged more efficiently.

  Since the present invention has a configuration as described above, the conventional apparatus obtains a separating effect by shifting the bag body in a plane, whereas the rotating apparatus only obtains the separating effect. It became a device that can be used in many bagging operations. This device saves labor in pre-packaging and packaging work, and realizes efficiency in the entire bagging and packaging work.

    The best mode for carrying out the present invention will be described below with reference to the drawings as embodiments of the present invention. Specifically, FIG. 1 is a front view showing the whole of the present invention, and FIG. 2 is a side view of the bag handling apparatus of the first embodiment. 3 to 6 are views showing the movement of the bag body using the bag handling apparatus of the present invention. Specifically, in FIG. 3, the bag body fixed to the bag body mounting portion rotates, in FIG. 4, the non-mounting portion of the bag body contacts the rotating shaft support base, and in FIG. 5, the bag body winds around the rotating shaft. FIG. 6 shows a state in the middle of the bag body being reversed. FIG. 7 is a diagram illustrating a state in which the side portion of the bag body of the second embodiment is fixed. FIG. 8 is a front view showing Embodiment 3 of the present invention, and FIG. 9 is a side view thereof. FIG. 10 is a front view showing Embodiment 4 of the present invention, and FIG. 11 is a side view thereof. 12 is a view showing the movement of the bag body of the third embodiment, FIG. 13 is a view showing the movement of the bag body of the fourth embodiment, and FIG. 14 is a view showing the movement of the bag body of the sixth embodiment. . FIG. 15 is a view showing the movement of the bag body of the seventh embodiment. FIG. 16 is a front view showing a state in which the bag body is fixed to the bag handling device. FIG. 17 is a diagram showing the displacement of the bag body. FIG. 18 is a view showing a conventional example in which one end of the bag body is fixed with a clip, and FIG. 19 is a view showing the movement of the bag when the bag body is handled manually.

(Overall configuration of bag-making device)
The bag separating apparatus of the present invention is configured to handle the bag bundle used for maintaining the freshness of vegetables and the like, thereby eliminating the adhesion of the bag body.
Here, the rotation shaft support means the part of the gantry that supports the rotation shaft, the rotation drive unit, and the bag mounting unit. The rotating shaft is a driving rotating shaft attached to the rotating shaft support base substantially in parallel. One end of the rotating shaft is connected to an electric motor, and the other end is supported by a rotating shaft bearing. (Not shown) A bag body mounting portion is attached to the rotating shaft, and the bag body is attached to this portion so that the bag body can be sufficiently fixed so that the bag body is not displaced by rotation of the bag body. ing. Moreover, a resistor means the member which gives a judgment effect to the bag body attached to the rotating shaft support stand. Hereinafter, each configuration of each embodiment will be described in detail.

  The first embodiment of the present invention includes a rotary drive unit including an electric motor and a speed reducer, a rotary shaft, a rotary shaft bearing (not shown), a bag body mounting portion attached to the rotary shaft, and a rotary shaft support. . Here, the bag body mounting portion is configured so that the bag body can be easily attached and detached, and since the bag body needs to be sufficiently fixed, in this embodiment, the bag body mounting portion is a clip-shaped one. It is said. In use, first, the bag body is attached and fixed to the bag body mounting portion, and the rotation shaft connected to the electric motor shaft is rotated by the rotation of the electric motor of the rotation drive section. When the rotating shaft rotates, the bag body rotates so as to be wound around the rotating shaft in the form shown in the order of FIGS. Depending on the thickness of the bag (usually 20 μm to 25 μm), the distance from the rotation axis changes little by little for each adjacent bag as shown in FIG. This action reduces the adhesion and entanglement of the bag body, and also works to unwind part of the bag bundle wrapping due to gravity during rotation. The same bag handling effect as the work can be obtained. Further, in this configuration, the bag body is not in direct contact with the apparatus except for the upper and lower two sheets that are in contact with the rotating shaft, and therefore, a good finished state can be obtained without causing scratches or the like due to rotational movement.

  In the second embodiment of the present invention, as shown in FIG. 7, the bag body mounting portion on the rotating shaft is configured to fix the side portion of the bag body. That is, since the separation effect does not reach the part fixed to the bag body mounting part, the easily separable part of the bag body is fixed to the bag body mounting part, and the other part is set as the non-mounting part. Thus, a more reliable judgment effect can be obtained.

  As shown in FIGS. 8 and 9, the third embodiment of the present invention includes a rotary shaft drive unit including an electric motor and a speed reducer, a rotary shaft, a rotary shaft bearing (not shown), and a clip-like bag attached to the rotary shaft. It is comprised with the resistor attached to the body mounting part, the rotating shaft support stand, and the rotating shaft support stand. The resistor is made of a soft material (for example, nylon) that has a smooth surface so that scratch marks are not easily generated when the bag is rotated. The bag bundle attached to the bag mounting portion by the rotation of the rotation shaft rotates while being wound around the rotation shaft. When the bag passes through the resistor, a speed difference is generated between the portion in contact with the resistor and the portion released from the resistor. Furthermore, the effect | action by gravity fall shown in Example 1 is added, the contact | adherence and entanglement of the bag body which adjoins are reduced, and the bag handling effect can be acquired.

  As shown in FIGS. 10 and 11, the fourth embodiment of the present invention includes a rotary shaft drive unit including an electric motor and a speed reducer, a rotary shaft, a rotary shaft bearing (not shown), and a clip-like bag attached to the rotary shaft. The body mounting portion, the rotating shaft support, the resistor a attached to the rotating shaft support, and the resistor b attached to the upper portion of the rotating shaft. The resistor b is a bag body opened from the resistor i. It is arranged to touch. The resistors a and b are made of a soft material (for example, nylon) having a smooth surface so that the rubbing trace is hardly generated on the bag body by the rotation of the rotating shaft. The bag bundle attached to the bag mounting portion by the rotation of the rotation shaft rotates while being wound around the rotation shaft. When the bag passes through the resistors A and B, a speed difference is generated between a portion in contact with the resistors I and B and a portion released from the resistors I and B. Furthermore, the action due to the gravity drop shown in Example 1 is added, and the adhesion and entanglement of the adjacent bag bodies are reduced. In this case, the two resistors constituted by the resistor A and the resistor B are rotated. By rotating the shaft once, a double separation effect can be obtained, and a bag separation effect can be obtained more efficiently.

Example 5 of the present invention includes a rotary shaft drive unit including an electric motor and a speed reducer, a rotary shaft, a rotary shaft bearing (not shown), a clip-shaped bag body mounting unit attached to the rotary shaft, a rotary shaft support base, It consists of a brush-like resistor C attached to the upper part of the rotating shaft. The brush-like resistor C is made of a soft material (for example, nylon) having a smooth surface so that a rubbing trace is not easily generated in the bag body at the time of rotation. The bag bundle attached to the bag mounting portion by the rotation of the rotation shaft rotates while being wound around the rotation shaft. In FIG. 13, the resistor C is formed in a brush shape. In the portion where the bag body is contacted by forming the brush shape, the rotational speed is moderately reduced for each protrusion of the brush. By this action, the adjacent bag body is peeled off, and the adhesion and entanglement of the bag body can be reduced, and an efficient bag spreading effect can be obtained.

  Example 6 of the present invention includes a rotary shaft drive unit including an electric motor and a speed reducer, a rotary shaft, a rotary shaft bearing (not shown), a clip-shaped bag body mounting unit attached to the rotary shaft, a rotary shaft support base, The resistor D is attached to the upper part of the rotating shaft and rotates in the same direction as the rotating shaft. The rotating resistor D is made of a soft material (for example, nylon) having a smooth surface so that scratch marks are not easily generated on the bag body during rotation. The bag bundle attached to the bag mounting portion by the rotation of the rotation shaft rotates while being wound around the rotation shaft. In FIG. 14, the resistor D is formed in a brush shape. In the portion where the bag body is contacted by forming the brush shape, the rotational speed is moderately reduced for each protrusion of the brush. By this action, the adjacent bag body is peeled off, and the adhesion and entanglement of the bag body can be reduced, and an efficient bag spreading effect can be obtained. The resistor body D rotating in the same direction as the bag body moves in the opposite direction to the bag body at the contact portion with the bag body, so that the brush projecting distance acts apparently from the bag body. Yes. The rotational speed of the resistor D is adjusted to such an extent that the apparent protrusion interval becomes too small to be regarded as one body when viewed from the bag body, that is, the bag body can realize the speed of each protrusion. By this action, it is possible to obtain a fine rotation speed and a more efficient bag spreading effect.

  A seventh embodiment of the present invention includes a rotary shaft drive unit including an electric motor and a speed reducer, a rotary shaft, a rotary shaft bearing (not shown), a clip-shaped bag body mounting unit attached to the rotary shaft, a rotary shaft support base, The resistor is mounted on the rotating shaft support, and is mounted on the upper portion of the bag rotating shaft and rotates in the same rotational direction as the bag rotating shaft. Resistors E and F are made of a soft material (for example, nylon) having a smooth surface so that scratch marks are not easily generated on the bag body during rotation. The bag bundle attached to the bag mounting portion by the rotation of the rotation shaft rotates while being wound around the rotation shaft. Since the moving force in the direction opposite to the rotation direction of the bag body is given to the portion in contact with the rotating resistor, the soft bag body is irregularly deformed one by one. By this action, an efficient bag handling effect can be obtained. In addition to the bag handling effect in the first embodiment, the resistor ho has the effect of converging the deformation of the bag body.

  Each of the embodiments thus obtained can efficiently handle the bag body without human hands, so it is not only used for manually packing and wrapping soft vegetables etc. It can be used for bagging and packaging work when a bagging and packaging device is used.

It is a front view which shows the bag handling apparatus of Example 1 of this invention. 1 is a side view of the first embodiment. It is a figure which shows the use condition (state which the bag body fixed to the bag body mounting part is rotating) of Example 1 shown in FIG. It is a figure which shows the use condition (state which the non-mounting part of a bag body is contacting the rotating shaft support stand) of Example 1 shown in FIG. It is a figure which shows the use condition (state in which the bag body was wound around the rotating shaft) of Example 1 shown in FIG. It is a figure which shows the use condition (state in the middle of the bag body inversion) of Example 1 shown in FIG. It is a front view which shows the state which attached the bag body to the bag handling apparatus of Example 2 of this invention. It is a front view which shows the bag handling apparatus of Example 3 of this invention. 8 is a side view of the third embodiment. It is a front view which shows the bag handling apparatus of Example 4 of this invention. 10 is a side view of Example 4. It is a figure which shows the resistor of Example 3 of this invention. It is a figure which shows the resistor C of Example 5 of this invention. It is a figure which shows the resistor D of Example 6 of this invention. It is a figure which shows the resistor ho of Example 7 of this invention. It is a front view which shows the state which attached the bag body to the bag handling apparatus of Example 1 of this invention. It is a figure which shows the state of the bag body by this invention. It is a figure which shows a prior art example. 18 is a diagram showing the movement of the bag of the conventional example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rotating shaft support stand 2 Bag body mounting part 3 Rotating shaft 4 Resistor 5 Rotation drive part 6 Bag body 7 Resistor a 8 Resistor b 9 Resistor c10 Resistor d11 Resistor e12 Resistor

Claims (5)

A bag mounting unit for attaching and fixing the bag body, a rotating shaft supported by a rotating shaft support base and rotating, a rotation driving unit for supporting and driving the rotating shaft, and supporting the rotating shaft, the rotation driving unit, and the bag mounting unit. A rotating shaft support base that rotates so that the bag body attached to the rotating shaft wraps around the rotating shaft, and by this wrapping action, a different turning radius is realized for each bag bundle A bag handling apparatus that causes a shift between adjacent bag bodies. A bag mounting unit for attaching and fixing the bag body, a rotating shaft supported by a rotating shaft support base and rotating, a rotation driving unit for supporting and driving the rotating shaft, and supporting the rotating shaft, the rotation driving unit, and the bag mounting unit. The rotating shaft support, which is in contact with the bag body, has one or a plurality of resistors that give a separating effect, and when the bag body bundle mounted on the rotating shaft rotates, the non-mounted portion contacts the resistor body. The bag handling device is characterized by causing a shift between adjacent bag bodies by realizing different rotational speeds for each sheet of the bag bundle at the time of contact. A bag mounting unit for attaching and fixing the bag body, a rotating shaft supported by a rotating shaft support base and rotating, a rotation driving unit for supporting and driving the rotating shaft, and supporting the rotating shaft, the rotation driving unit, and the bag mounting unit. A rotating shaft support that is in contact with the bag body and has a brush-like continuous resistor that gives a separating effect, and when the bag body mounted on the rotating shaft rotates, the resistor body contacts the resistor body. A bag handling device characterized by causing a shift between adjacent bag bodies by realizing different rotational speeds for each bag bundle. A bag mounting unit for attaching and fixing the bag body, a rotating shaft supported by a rotating shaft support base and rotating, a rotation driving unit for supporting and driving the rotating shaft, and supporting the rotating shaft, the rotation driving unit, and the bag mounting unit. The rotating shaft support, which has a rotating brush-like continuous resistor that makes contact with the bag body and gives a separating effect, and when the bag body mounted on the rotating shaft is rotated, the non-mounted portion is attached to the resistor body. A bag handling device characterized in that, when contacting, a different rotational speed is realized for each sheet of a bag bundle to cause a shift between adjacent bag bodies. The bag separating apparatus according to claim 1, wherein the bag body mounting portion for attaching and fixing the bag body is configured to be fixed at an arbitrary position of the bag body.

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