JPH03281B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a packaging device for mushrooms and other similar products, and particularly to an improvement in the bag opening pressing mechanism of the packaging device.

[Prior art and its problems] This type of packaging device generally charges mushrooms or similar materials weighed in advance from a hopper, places them on a supply member that is movable forward and backward under the hopper, and In front of the supply member, the bag opening is supported by a suction device, and the supply member is inserted into the bag via the bag mouth presser, and when the supply member is retreated, mushrooms and other similar materials are removed by the pushing member located on the supply member. The bag containing similar substances such as mushrooms is dropped onto a conveying member and moved, and the air inside the bag is removed by gentle pressure, and the opening of the bag is sealed before being carried out. For example,
Japanese Utility Model Publication No. 56-5523 by the same applicant has been proposed as an internal bag opening presser mechanism for adjusting the bag opening using an internal bag opening presser.

In this system, a pair of presser plates are pivotally supported in a V-shaped plane on a base plate, and a bag mouth presser is attached to a cylinder so that an elastic force is applied by a bullet so that the ends of the presser plates are constantly closed together. It is arranged to be movable back and forth when operated, and the supply member is guided into the bag mouth opened by the suction device by the forward movement of the bag mouth presser and the rotation of the press plate in conjunction with the forward movement of the supply member. Note that it is sufficient that the presser plate inside the bag opening is not moved forward, but that the presser plate is rotatable in conjunction with the forward movement of the supply member.

By the way, this type of packaging bag is made of a thin flexible sheet material such as polyethylene, and the bag is formed by folding the sheet material and welding the two sides on both sides excluding the bag opening, as shown in Figure 6. are doing.

Therefore, when the bag opening is opened with a suction tool, the opening state is corrected and held in shape with a presser plate, and the supply member is sent into the bag, the bag is corrected from the inside of the bag opening. When holding the bag open, the welded part of the bag at the end of the bag may peel off and break, and in this state, when the supply member is guided from the bag mouth to the inside of the bag, It tends to get caught in the mouth, and as a result, the lower end of the bag that does not hold the bag may shift upward, making it impossible to feed the supply member into the bag.

[Object of the Invention] An object of the present invention is to provide a bag opening presser mechanism that can accurately insert a supply member.

[Summary of the Invention] The present invention provides an elastic material such as a rubber material on the contact surface of the bag of the presser plate of the bag opening presser, so that when the presser plate rotates, the adhesive elastic material holds the bag and prevents the bag opening from closing. It is designed to prevent movement and close the bag opening.

[Embodiments of the Invention] In FIGS. 1 to 5, a frame 1 has opposing members 1a and 1b, and a pair of upper and lower air cylinders 2 and 2a are disposed on the opposing member 1a, one of which is air cylinders 2 and 2a. A bracket 4 is provided on the piston 3 of the cylinder 2. The bracket 4 is provided along the longitudinal axis of the piston 3 with a supply member 5 consisting of an enoki mushroom mounting member 5a having a substantially semicircular cross section and a pair of lid members 5b. A pair of parallel rails 6, 6a are installed on the opposing members 1a, 1b of the frame 1, and the bracket 4 is inserted through the rails 6, 6a, and the piston of the cylinder 2 together with the supply member 5 is inserted into the rails 6, 6a. It is formed so that it moves forward and backward along with the movement of step 3. A cam 7 is provided on the bracket 4, and this cam 7
A switch 8 is fixed to a part of the frame 1 and forms control means, the switch 8 being actuated in contact with the bracket 4 upon its backward movement.

A pushing member 9 is attached to the piston 3a of the other cylinder 2a, extending above the enoki mushroom supplying member 5 and along its longitudinal axis. The pushing member 9 is attached with a guide rod 10 that extends above the piston 3a along its longitudinal axis and is pivotally supported by the opposing member 1a. It is formed to move forward and backward along the longitudinal axis of the enoki mushroom supplying member 5 together with the guide rod 10. A cam 7a is provided on the guide rod 10 so as to be movable and adjustable along its longitudinal axis, and a switch 8a is fixed to the opposing member 1a of the frame 1 and is actuated by contact with the cam 7a when the guide rod 10 moves forward. and forming other control means. Further, the switches 8 and 8a are formed to control the backward movement of the enoki mushroom supplying member 5 and the pushing guide rod 10, as will be described later.

A bag opening presser A is attached to the opposing member 1b. In this case, bag opening presser A is based on base 12.
A pair of presser plates 13, 13a are mounted on the pivots 14, 14.
It is rotatably supported by a, and its press plate 13,1
The pivots 14, 14a of the base 12 are arranged so that the tips of the 3a are always blocked by the bullets 15, 15a.
A spring member 16 capable of holding the lower part of the bag mouth is provided between the two. A pair of suction tools 17 provided on the piston 3c of the air cylinder 2c are disposed in front of the bag opening presser A.
A sensor pin 19 for stopping the device by electrically connecting the holding plates 13 and 13a when 8 is not supplied.
is provided. An adhesive elastic material 20 made of silicone rubber, synthetic rubber, composite rubber, etc. is provided on the surface of the holding plates 13, 13a that comes into contact with the bag 18 at a location that does not interfere with the sensor pin 19. Guide members 21 and 21a are provided on the base 12 to close the lid member 5b when the supply member 5 moves forward and to open it when the supply member 5 moves backward.

Then, mushrooms such as enoki mushrooms are introduced from a hopper (not shown), and are supported by a substantially semicircular mounting member 5a that forms a part of the supply member 5. At this time, the pushing member 9 is located at the rear side of the enoki mushroom as an initial state. From this state, for example, the motor is rotated, and the motor is driven in a well-known manner by a series of sequences based on electrical signals by a control means consisting of a group of cams that respond to the rotation of the motor, and a group of switches that operate in contact with the motor. That is,
When the bag 18 is suctioned and opened by the suction device 17, the pistons 3 and 3a of the cylinders 2 and 2a simultaneously move forward, and the enoki mushroom placement member 5a, which constitutes a part of the supply member 5, is connected thereto. The pushing member 9 starts moving forward along the rails 6, 6a together with the bracket 4, and the pushing member 9 also moves forward together with the guide rod 10. When the forward movement of the enoki mushroom supplying member 5 further progresses, the front end of the lid member 5b connected thereto comes into contact with a pair of planar V-shaped closing guide plates 21, 21a disposed on the base 12, and the inner surface thereof The lid member 5b is urged toward the closing side while following the cover member 5b, thereby closing the space above the enoki mushroom mounting member 5. Next, when the supply member 5 moves further forward, the holding members 13 and 13a open outward against the elasticity of the bombs 15 and 15a as the placement member 5b moves forward, and the presser plates 13 and 13a are opened outwardly against the elasticity of the bombs 15 and 15a, and the presser plates 13 and 13a are opened outwardly, and the presser plates 13 and 13a are opened outwardly against the elasticity of the bombs 15 and 15a. The supply member 5, which expands outward from the inside and is formed into a substantially cylindrical shape, enters the bag 18 within a certain range through the bag opening presser A at the mouth of the bag 18. The forward motion of the piston 3a continues, and as a result, the pushing member 9 presses the enoki mushroom on the mounting member 5 from the rear side into the bag 18, and stops within a certain range. At this time, when the cam 7a of the guide rod 10, which is continuous with the pushing member 9, comes into contact with the switch 8a, an electric signal causes the piston 3 of the cylinder 2 to start retracting, thereby causing the supply member 5 to retract. Due to this backward movement of the supply member 5, the cover member 5b is moved to the closing guide plate 2 in the middle of the movement.
1 and 21a, it is forcibly opened and returned to the initial state. At this time, the piston 3a of the cylinder 2a is in a stationary state, so that the enoki mushrooms are stuffed into the bag 18 and sent to the next packaging stage. By the way, the present invention provides an adhesive elastic material 20 on the contact surface side with the bag 18 of the presser plates 13, 13a of the bag opening presser A, so that even if the welded portion at the lower end of the opening of the bag 18 is peeled off, the presser can be removed. Board 1
When the supply member 5 is rotated, the adhesive elastic material 20 can hold the inner surface of the bag 18 in close contact with the bag 18 and prevent the bag opening from moving, thereby fixing the bag opening. Inconveniences such as the bag opening portion of the bag 18 being pushed in and getting caught during insertion can be prevented, and the insertion operation can be performed satisfactorily.

[Effects of the Invention] The present invention includes supplying a bag in front of a supply member on which mushrooms and other similar substances are placed, and a pushing member located on the supply member, and disposing a suction device at the mouth of the bag. , a bag opening presser having a presser plate that supports the opening of the bag from the inside is provided between the supplying member and the opening of the bag, the suction tool opens the bag opening by suction, and the supplying member and the pushing member is inserted into the bag through the bag opening presser, and mushrooms or similar materials are stored in the bag by the pushing member located on the supply member when the supply member is retreated, wherein the bag of the presser plate is By providing an adhesive elastic material on the contact surface side, the adhesive elastic material holds the bag when the presser plate rotates, and when it comes into contact with the bag, it comes into close contact with the bag, preventing movement, and fixing the bag opening. Because of this, the opening of the bag opening can be accurately held using a relatively inexpensive mechanism, and mushrooms and other similar items can be reliably stored in the bag, which is highly effective.

[Brief explanation of the drawing]

Figure 1 is a sectional view showing the operating state of the present invention, Figure 2
The figure is a perspective view, FIG. 3 is a side view, FIG. 4 is an overall side view, FIG. 5 is a plan view, and FIG. 6 is a front view of the bag. 5... Supply member, 9... Pushing member, 13b, 1
3c...pressing plate, 17...suction tool, 18...bag,
20...adhesive elastic material, A...bag mouth presser.

Claims (1)

[Claims] 1. A bag is placed in front of a supply member on which mushrooms and other similar substances are placed, and a pushing member located on this supply member, and a suction tool is placed at the mouth of the bag, and the bag's mouth is A bag mouth inner presser having a presser plate supported from the inside is provided between the supply member and the mouth of the bag, and the bag mouth is suctioned and opened by the suction tool, and the supply member and the pushing member are connected to the bag mouth inner presser. In a device that is inserted into the intervening bag and stores mushrooms or similar materials into the bag by a pushing member positioned on the feeding member when the feeding member retreats, the holding plate has an adhesive elastic material on the contacting surface of the bag. A packaging device for mushrooms and other similar products, characterized in that a material is provided.