JPH037286Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention is a bag opening guide device in a packaging device for mushrooms and other similar products, particularly for improving the opening of bags containing mushrooms and other similar products. The present invention relates to a bag opening guide device in a packaging device for mushrooms and similar products that can be guided to the opening side of a clamping tool.

(Prior art) This type of technology is known, for example, from Jikkosho by the same applicant.
As in Publication No. 56-10643, pre-weighed mushrooms and similar materials are put into a hopper and placed on a supply member that is movable forward and backward under the hopper, and a bag opening is placed in front of the supply member. Similar substances such as mushrooms are stored in a flexible bag made of polyethylene or the like with an opening supported by the forward and backward movement of the supply member,
Further, a bag containing mushrooms or similar substances is dropped onto a reciprocally movable conveying member and placed on the conveying member, and the conveying member is placed above the forward movement completion position of the conveying member by a degassing member. side, and gently presses the bag with a degassing member to eliminate the air inside the bag.
Next, the mouth edge of the bag is clamped with a plurality of clamping tools, and the clamping tools are rotated in a fixed position to twist the bag opening, and the welding element is engaged with the welding socket to seal the bag. They are being carried out after they arrive.

(Problem to be solved by the invention) In such a case, when the conveyance member moves laterally to the side of the degassing member, that is, to the side of the plurality of clamping tools, it is difficult to clamp the bag opening by the clamping tools. Since the open end of the bag on the conveying member is placed on one side of the conveying member, that is, slightly protruding from the supplying member side portion, and the bag is moved laterally, the lower edge of the open end of the bag droops. If the bag is hanging downward, the lower edge of the bag will come into contact with some of the plurality of clamping tools, especially the clamping tool that tries to clamp the bag opening from the lower side of the bag, and as a result, In some cases, the open end of the bag may be pinched by the clamping tool without being fully guided to the opening of the clamping tool, and in this state, the bag opening may be pinched by the clamping tool. In this state, the twisted part of the bag opening may be sealed due to the engagement between the welding tip and the welding tip holder, and the rim of the bag containing mushrooms and other similar items may become sealed. In some cases, it may not be possible to twist the bag while it is securely clamped, and the bag does not have a good appearance after being sealed.

In addition, when the welding element and the welding element holder are engaged, if the clamping area between the plurality of clamping tools and the bag is narrow, the clamping tool may be used to twist the welding element and the welding element holder to engage the welding element and the welding element holder. There is a risk that unsealed parts may be left afterwards, and the bag and the outside will be in communication, making it impossible to maintain the freshness of stored mushrooms and other similar products, which can easily lead to a decrease in product value. .

Therefore, the present invention was developed with the above-mentioned considerations in mind. After the open end of the bag is firmly guided into the opening side of the clamping tool and twisted well, the bag is sealed and closed. It is an object of the present invention to provide a bag opening guide device in a packaging device for mushrooms and other similar products that can improve the appearance.

[Structure of the idea]

(Means for Solving the Problems) The present invention provides a method for transporting a bag containing mushrooms or similar substances on the transport member to the position of the degassing member by the forward movement of the transport member. A bag opening guide member having an upward slope capable of guiding the side mouth edge to the opening between the pair of clamping tools is provided near the clamping tools in the moving region of the conveying member.

(Function) Even if the opening end of a bag containing mushrooms or other similar substances hangs down, the lower part of the opening end will slide while being guided along the bag opening guide, and the opening of the bag will close. The portion is lifted upward and guided into a proper positional relationship, that is, toward the opening of the clamping tool.

(Embodiment of the invention) Hereinafter, an embodiment of the invention will be described with reference to the accompanying drawings.

1 to 4 show a packaging device for mushrooms and similar products, and will be explained using an enoki mushroom packaging device as an example. In this case, a semi-cylindrical enoki mushroom supply member 1 is disposed below an enoki mushroom input port formed in the main body of the enoki mushroom packaging device (not shown), and this enoki mushroom supply member 1 is connected to a piston of a cylinder 2. As a piston formed in the cylinder 2 is driven, the enoki mushroom supplying member 1 is configured to be movable back and forth along its length. On the rear end side of the semi-cylindrical enoki mushroom supplying member 1, a retreat prevention piece 3 is arranged to prevent the enoki mushroom from retreating, and this retreat prevention piece 3 is connected to the piston of the cylinder 4.
The cylinder 4 is configured to move forward and backward as a piston formed in the cylinder 4 is driven. In front of the enoki mushroom supplying member 1, a V-shaped rotating plate 5 is provided which opens the tip by the forward motion of the supplying member 1 and expands the opening of a flexible bag made of polyethylene or the like, which will be described later. , each rotating plate 5 is formed to be openable and closable using each shaft 7 formed on the plate 6 as a fulcrum, one end is fixed to the plate 6 at the center position of each rotating plate 5, and the other end is fixed to the plate 6. An elastic restraining piece 8 is formed which is pressed by the forward movement of the mushroom supplying member 1 to spread out the lower edge of the bag from the inside, which will be described later. Further, the pair of rotating plates 5 are connected to the shaft 7.
is formed so that its distal end side is always closed via a spring member 9 with the pivot plate 5 as a fulcrum.
A plate 6 supporting the enoki mushroom supply member 1 is connected to a piston of a cylinder 10, and as the piston formed in the cylinder 10 is driven, the rotating plate 5 together with the plate 6 moves back and forth in the same direction as the length direction of the enoki mushroom supply member 1. It is possible to form. A suction member 12 is disposed in front of the enoki mushroom supplying member 1 and the rotating plate 5, and is arranged to suction open the opening of a flexible bag 11 made of polyethylene or the like in which the enoki mushrooms are stored. A negative pressure pipe 13 is connected, and the negative pressure pipe 13 is routed to a negative pressure generating device (not shown), such as a vacuum pump, and the adsorption member 12 is connected to a piston of a cylinder 14. The other suction member 1 faces the one suction member 12 and opens the bag opening on the other outer surface of the bag 11 by suction.
Similarly to one suction member 12, a negative pressure pipe 16 is connected to the other suction member 15 and routed to a negative pressure generating device (not shown). As the pistons of the cylinders 14 and 17 arranged opposite to each other are driven, the suction members 12 and 15 move toward and away from each other so as to be able to advance and retreat. The mouth is formed to have a suction opening. A fixed clamping piece 18 having a length substantially equal to the length of the bag 11 is installed above the adsorption members 12 and 15, and a movable clamping piece that moves toward and away from the fixed clamping piece 18 and can move forward and backward. 1
A piston of a cylinder 20 is connected to the rear side of the movable clamping piece 19, and as the piston of the cylinder 20 is driven, the movable clamping piece 19 abuts against the fixed clamping piece 18 to hold the bag 11. It is hung by holding the side edges. A semi-cylindrical conveying member 21 is disposed below the fixed clamping piece 18 and the movable clamping piece 19, and this conveying member 21 is connected to the piston of the cylinder 22, so that the cylinder 2
The conveying member 2 is driven by a piston formed in 2.
1 is formed so as to be able to move laterally toward the degassing member 23.

A cylinder 24 is installed above the degassing member 23, and the degassing member 23 is movable up and down by driving the piston of the cylinder 24.

A pair of bag clamping tools 25 for pinching and twisting the mouth edge of the bag 11 are attached to the frame 25A on the sides of the forward position of the conveyance member 21, and the bag clamping tools 25 are connected to the piston of the cylinder 26. are doing. A gear 27 is attached to the frame body 25A side, and a rack 28 that meshes with this gear 27 is provided.
8 is connected to the piston of the cylinder 29.

A welder 31 is disposed on the side of the degassing member 23 so as to be movable up and down by a cylinder 30, and heat-welds the mouth edge of the bag 11. A welder holder 33 is provided which can be raised and lowered by a cylinder 32.

This welder holder 33 is fixed to a holder mounting plate 34 provided at the tip of the cylinder 32. Further, a bag opening guide plate 35 serving as a bag opening guide member is provided on the pedestal mounting plate 34.

To be more specific, the bag opening guide plate 35 is located close to the movement area of the conveying member 21 toward the degassing member 23 and is disposed near the clamping tool 25. Furthermore, this bag opening guide plate 35 forms an arcuate guide portion 35a having an upward slope that gradually increases as it goes toward the pinching tool 25 side, and the height of the tip of the guide portion 35a is higher than that of the pinching tool 25. It is provided at approximately the same height as the tip of the lower clamping tool.

Furthermore, cylinders 2, 4, 10, 14, 17, 2
0, 22, 24, 26, 29, 30, and 32 are each connected to a compressed air generator (not shown).

The operation of the above configuration will be explained. First, turn on the power switch (not shown) configured in the automatic enoki mushroom packaging device, and press each cylinder 2, 4, 1.
When 0, 14, 17, 20, 22, 24 and each suction member 12, 15 are operated in a sequential switching operation, the suction action is applied to the suction member 12 connected to the negative pressure pipe 13 first, and the enoki mushroom is The bag opening side of the bag 11 containing the bag 11 is suctioned, and the suction member 12 is fixed to the clamping piece 1 via a gear mechanism (not shown).
The movable clamping piece 19 connected to the piston of the cylinder 20 advances by the drive of the piston, and the fixed clamping piece 1
The movable clamping piece 19 comes into pressure contact with the bag 8, and the upper end of the side surface of the bag 11 is clamped therebetween and suspended.

Next, the suction members 15 connected to the pistons of the cylinders 14 and 17 move forward as the pistons are driven, and the suction members 12 and 15 are provided oppositely on both sides of the suspended bag 11. At this time, the suction action from the negative pressure pipes 13 and 16 is acting on each of the suction members 12 and 15, and the outside of the bag 11 is suctioned, and as the pistons of the cylinders 14 and 17 move backward, they are brought into close contact with each other. The opening of the bag 11 that was previously held is forcibly attracted and opened.

On the other hand, the enoki mushrooms fed from the input port of an automatic enoki mushroom packaging device (not shown) and sent onto the enoki mushroom supply member 1 are first moved forward by the piston of the cylinder 10 connected to the plate 6, The rotating plate 5 of the opened bag 11
Then, the enoki mushroom supplying member 1 and the retreat prevention piece 3 move forward in conjunction with the driving of the pistons of the respective cylinders 2 and 4, and the side wall portion and lower portion of the tip of the supplying member 1 are inserted into the plate 6. An elastic restraining piece 8 having one end fixed to each rotating plate 5 disposed above.
As a result, the other end of the elastic restraining piece 8 pushes out the lower edge of the inner surface on the opening side of the bag 11 from the inside and restrains it, and the rotating bag 5 engages with and presses the spring member 9. The opening end of the bag 11 is expanded and held by opening its tip around the shaft 7 as a center of rotation against the elasticity of 5 and an elastic restraining piece 8 to support the opening. And enoki mushroom supply member 1
The enoki mushroom supplying member 1 and the enoki mushroom supplying member 1 are fed into the bag 11 by moving the retreating prevention piece 3 further forward and deeper into the bag 11.

Subsequently, the piston of the cylinder 2 connected to the supply member 1 retreats, and at the time of this retreat, the enoki mushrooms are prevented from moving backward by the retreat prevention piece 3, and the enoki mushrooms are placed in the bag 11.
At the same time, the retreat prevention piece 3 returns to its original position as the piston formed in the cylinder 4 is driven backward in conjunction with the retreat movement of the supply member 1. Due to the return movement of the backward blocking piece 3, the rotating plate 5 and the elastic blocking piece 8 are moved toward the bag 1.
1 is released, the piston of the cylinder 10 connected to the plate 6 retreats, and the rotary plate 5 separates from the bag 11.

When the filling of the enoki mushrooms into the bag 11 is completed through the series of operations described above, the negative pressure tube 13 connected to the suction members 12 and 15 that suction both outer surfaces of the bag 11,
16 is cut off, the suction force of the suction members 12 and 15 is lost, and at the same time, the piston of the cylinder 20 connected to the movable clamping piece 19 retreats, and the bag 11 is removed by the movable clamping piece 19 and the fixed clamping piece 18. The pinched state of the side edges is released, and as a result, the bag 11 filled with enoki mushrooms falls and is placed on the semi-cylindrical conveying member 21, and the suction member 12 is returned to its original state via a gear mechanism (not shown). It rotates back to the position and prepares for the next suction operation of the bag 11. Through the above-described series of operations, the flexible bag 11 filled with enoki mushrooms is dropped onto the semi-cylindrical conveying member 21 and placed on the conveying member 21. Then cylinder 2
The conveying member 2 is driven by a piston formed in 2.
1 moves laterally towards the degassing member 23, and then by the drive of the piston in which the cylinder 24 is formed, the degassing member 23 applies soft pressure to the bag 11 to eliminate the air inside the bag 11, and at the same time, a pair of bag pinching pressures are applied. The cylinder 26 connected to the tool 25 moves forward, the bag pinching tool 25 pinches the edge of the bag 11, and the cylinder 29 forming the rack 28 moves forward, so that the rack 28 and the gear 2
7, the bag pinching tool 25 rotates and twists the mouth edge of the bag 11.

In this state, the welder 31 is lowered by the drive of the piston formed in the cylinder 30, and the welder holder 33 is raised by the drive of the piston formed in the cylinder 32, and the welder 31 is lowered by the drive of the piston formed in the cylinder 32.
1 and the welding element holder 33 are engaged with each other, and the rim of the bag 11 is heated and welded to seal the bag 11, and then the bag 11 is conveyed.

To be more specific, when the conveying member 21 is moving laterally toward the degassing member 23 side, the conveying member 21 protrudes somewhat from one side of the conveying member 21, that is, from the supplying member 2 side, and also extends from the lower side. The lower edge of the bag 11 hanging down gradually moves from the lower side of one side to the other side along the arcuate guide portion 35a of the bag opening guide plate 35 in conjunction with the lateral movement of the conveying member 21. It is pushed upward while sliding on the arcuate guide portion 35a.

Therefore, since the bag opening guide plate 35 is disposed near the clamping tool 25 and also within the movement area of the conveying member 21, it protrudes somewhat from the one opening side of the conveying member 21. However, the mouth edge of the bag 11 hanging downward can be guided by the bag mouth guide plate 35 and reliably guided into the opening of the clamping tool 25. The edge of the bag 11 is pinched by the pinching tool 25, and with the pinching tool 28 rotated in a fixed position, the mouth edge of the bag 11 is twisted by the pinching tool 25, and the welder 31 and the welder are separated. By engaging the pedestal 33, it becomes possible to seal the twisted portion of the mouth edge of the bag 11 and bend the mouth edge of the bag 11 to ensure a secure seal, thereby changing the appearance of the bag 11 after packaging. It becomes a good product and its commercial value can be increased.

Note that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made within the scope of the invention. For example, as shown in FIG. 36a, this flat plate may be provided with a horizontal portion 36b that is continuous with the arcuate guide portion 36a, and this horizontal portion 36b may be attached and fixed to the board of the main body of the enoki mushroom packaging device. It may also be formed to have a direct upward slope.

[Effect of idea]

As described above, in the present invention, when a bag containing mushrooms or similar substances on the conveying member is conveyed to the position of the degassing member by the forward movement of the conveying member, the lower edge of the bag is A bag opening guide member having an upward slope that can be guided to the opening between the pair of clamping tools is provided near the clamping tool in the moving region of the conveying member, so that the bag opening guide member protrudes from the opening on one side of the transporting member, It is possible to reliably guide the open end side of the hanging bag into the opening of the clamping tool, which allows for good hermetic packaging by twisting and sealing, and improves the appearance of the bag. It has the effect of improving its quality and increasing its commercial value.

[Brief explanation of the drawing]

Fig. 1 is an overall plan view showing the first embodiment of the present invention, Fig. 2 is a front view showing the main parts of Fig. 1, Fig. 3 is a perspective view showing the main parts, and Fig. 4 is the same main part. FIG. 5 is a perspective view of the main parts of the second embodiment of the present invention. DESCRIPTION OF SYMBOLS 11... Bag, 21... Conveying member, 23... Deaeration member, 25... Clamping tool, 31... Welding element, 33...
...Welder holder, 35, 36...Bag opening guide plate (bag opening guide member).

Claims (1)

[Scope of utility model registration request] A degassing member that places a bag containing mushrooms or other similar substances on a conveying member that is capable of reciprocating movement, and applies soft pressure to the bag at a position where the forward movement of the conveying member is completed to eliminate air within the bag. is arranged, and the mouth edge of the bag from which air has been removed by the degassing member is pinched and twisted by a pair of clamping tools provided at the rear of the conveying member,
The twisted mouth edge of the bag is caused by the engagement between the welding element that is movably provided between the degassing member and the clamping tool and the welding pedestal that is movable up and down below the welding element. In the packaging device for mushrooms and other similar products, the bag containing the mushrooms and other similar products on the transport member is transported to the position of the degassing member by the forward movement of the transport member. In this case, a bag opening guide member having an upward slope capable of guiding the lower mouth edge of the bag to an opening between the pair of clamping tools is provided near the clamping tools in a movement area of the conveying member. A packaging device for mushrooms and similar products, characterized by: