JPS581626A - Regulator made correspond to bag width in packer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention involves a pair of left and right clips holding both side edges of a bag and suspending the bag, and transporting the bag along a circular path, and during this transport process, the bag is placed inside the bag. In a rotary bag filling and packaging machine that welds and seals the mouth of the bag after filling the bag, the distance between the wall of the bag loading box and the pair of clips is determined according to the size of the bag. It is characterized by being able to be adjusted synchronously by operating only one axis.

For example, the rotary bagging and packaging machine in this building
As shown in Publication No. 5-6326, the system is equipped with multiple sets of two clips, each of which clips a bag and wraps various items while not transporting the bag. If you want to change the width of the bag, you can adjust the spacing between each pair of clips depending on the width of the bag. Moreover, in order to supply bags to each of the clips, it is necessary to adjust the distance between both walls of the box in which a large number of bags are stacked to match the inside of the bags so that the bags do not shift laterally. However, in the past, each of these adjustments had to be performed in separate operations, which had the disadvantage of requiring years to complete, but with the present invention,
Adjustment is simplified by synchronizing the clip spacing and the inside of the wall using only a rotational force with respect to the axis of the book.

Embodiments of the present invention will be described below based on the drawings.

The packaging machine shown in FIG. 1 is constructed by supporting eight sets of clips on a disk-shaped rotor (1). The details of each set of clips are as shown in FIG.
A movable bite piece 141 +41 is attached to the tip of the bottle +51 (5
1, and each arm 131 (3
The swinging link (61 (61) pivotally supported on the movable attachment piece (41 (41) On the other hand, a pair of fan-shaped gears T9+ +91 are fixed to these arms around the support shaft +21 (21) of the arms +3+ +31.
are engaged with each other, and both ends of a tension spring ue are engaged with arms +31 and +31.

On the other hand, as shown in FIG. 2, the center part (= sleeve qυ) of the rotor (1) is fixed, and the rotor (
1) rotatably supports (2) the rotor (1);
At the bottom of the sleeve Uυ, four conical cam Buddhas are installed so as to be slidable in the vertical direction.

The cam (14 is formed with a small diameter portion (13a) for narrowing the gap between the clips so that the bag opens within a range of approximately 1/4 degree of the entire circumference as shown in Fig. 1. This small diameter portion α3a) is formed at a more acute angle than the other portions as shown in FIG. (The lower surface of 141 is brought into contact with the elevating mechanism uQ provided below. The elevating mechanism al
19 is a bottle (1'J) fixed to the sleeve αυ that is engaged with a spiral groove formed on the inner surface of the cylindrical body <17), and by rotating the cylindrical body aD, the same cylinder is moved by the propulsive action of the spiral rgaB. The body (171 moves up and down along the sleeve αυ to raise and lower the cams a and ll.
υ is a thrust bearing υ whose lower surface is attached to the upper surface of the base (7).
The thrust bearing GID supports the entire load of the device applied through the sleeve Ql), and
A plate 4 is fixed to the lower surface of the sleeve Qυ, and the drive input is applied through this plate 4.

The drive input described above is transmitted through an intermittent rotation mechanism as shown in FIG. That is, the Geneva stop shown in the figure consists of a driving plate (2) and a driven plate (eA) with eight notches formed therein. @Rolled down with 3 things, and the driven plate (
c) The rotational movement of the rotor (1) is transmitted through the plate-4.
). Further, the driving plate support and the piece protruding from the side of the skirt I are connected through a crank lock.

In addition, one arm of each set of clips (
A lever (to) is fixed to the base end of the lever group, and a roller c3) is rotatably supported at the tip of the lever group via a bottle Sυ, and each roller a'a-... is attached to the circumference of the cam ua1. It is made to make contact with the surface.

On the other hand, as shown in Figure 1, each clip has one stop position (6
) A bag loading box (b) is placed outside.

As shown in Figure 4, the box (b) consists of a floorboard (c) and a pair of wall boards g @ (to) installed on the floorboard, and is supported horizontally below the floorboard haze marked mJ. It engages the handle shaft 0'7) and the bosses (to) (to) provided on the lower surface of each of the wall plates (31906), and forms a right-hand thread cll and a left-hand thread on the shaft 6D. At the same time, each of these threaded portions (to) 1 (I) is engaged with the female thread on the inside of the boss (to) connection. Also, one end of the above-mentioned knob 1 needle shaft 1371 is connected to a pair of bevel gear mechanisms (4υ). The driven shaft 4 is connected to a driven shaft 4 which will be described later.The driven shaft is equipped with a transmission mechanism (43) at its intermediate portion, and as shown in FIG.
) is disposed tangentially to the circumferential surface ζ of the cylindrical body, and a worm gear fixed to the driven shaft is engaged with the diagonal (4) formed on the circumferential surface of the cylindrical body.

The illustrated embodiment is constructed as described above, and its operation will be explained below.

As shown in Figure 4, a pair of wall plates (to) of the bag loading box (b)
The bags loaded during (to) are suctioned by the paccum acting through the suction cup 0ηαη, and one by one, starting from the highest one, is fed between the clips at position H in Figure 1 and received by these clips. pass it on. On the other hand, when power is transmitted to the rotor (1) by the action of the Geneva stop in Fig. 1, the rotor (
The eight sets of clips attached to the bag t4e support the bag t4e and move intermittently between eight positions (6) and (Gl) in the direction of the reverse hour hand, one pitch (P) at a time. Rotate.

Then, at each stop position, the bag is opened, the bag is filled with the item to be packaged, the bag mouth is closed, the bag mouth is melt-sealed, and the bag is released.
Each action is performed sequentially.

Next, when you want to change the size of the bag to be used, use the handle (c) to select the axis C3? ) is rotated, the space between the wall plates on both sides (
(To) can approach or separate from each other so that the inside of the wall can match the size of the bag (C), and the bags must be stacked neatly between these two wall panels (To) to avoid sideways shifting. becomes possible. Moreover, the rotation of the handle shaft G7) is transmitted to the driven shaft (4) via the bevel gear mechanism 0υ.
The rotation of the driven shaft is transmitted to the cylindrical body by the action of the worm gear (4 shafts). When the action of the cylindrical body (17) + one rotation is transmitted, the rotation is transmitted by the screw element consisting of the helical groove a8 and the pin α■. The cylindrical body 07) moves upward or downward on the outside of the sleeve a4 to move the cam u3 up and down. If the cam Q3 is moved upward, the roller (to) in FIG.
is pushed out and the distance between the arms +31 (31) is widened. Symmetrically with the above 1: When the cam u3 is lowered, the distance between the arms +31 and +31 is narrowed by the tensile force of the spring (aI). Clip spacing is adjusted.

As described above, the adjusting device of the present invention provides a rotational movement to the cylindrical body (I7), thereby adjusting the screw element (18) C1.
1 to move the cylindrical body Uη up and down, and the vertical movement of the cylindrical body αη moves the conical inclined cam arm upward, so that the interval between the bag supporting clip arms (31131) can be adjusted as desired. On the other hand, the handle shaft 137) for adjusting the distance between the pair of wall plates (g) and (to) on the outer bag loading plate of the rotor (1) and the cylindrical body (17) are arranged so as to align with the handle shaft 137). The driven shafts (4) are connected via gears, and the worm gear (44) provided on the driven shaft C4 is engaged with the oblique angle 05 formed on the curved surface of the cylindrical body αD. To adjust the distance between (to) and (to), by simply rotating the handle shaft c30, the driven shaft u4 automatically rotates the cylindrical body (lη), and furthermore,
The propulsion function of 8 (II) automatically moves the cam Q3 up and down, and the interval between the bag supporting clip arms (31) can be automatically adjusted. As mentioned above, each movement is performed by a series of power The adjustment in the wall and the clip spacing are always proportionately synchronized by the system (2). Therefore, when the adjustment in the wall of the bag loading box is adjusted according to the size of the bag in the bag, the clip spacing is adjusted according to the width of the bag. will also be automatically adjusted,
Therefore, the advance adjustment of the packaging machine to suit the size of the bag can be made more efficient, and packaging can be carried out with fewer mistakes.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a sectional view of the front view of the previous figure, and FIG. 3 is an enlarged partial plan view of the previous figure.
FIG. 4 is a sectional view taken along line ff-IV in FIG. 1. il+----Axis rotor (4) -----Movable bite piece Ql)---Sleeve 1'4・ll1@III+Fixed shaft Q3---Cam (161-・Curved lifting mechanism...Spiral Groove Corporation ll@1111@11 bag loading box (44・*aem*driven shaft C43-----speed change mechanism (44-------・worm gear) lri...slope (4f9...bag 1st @

Claims (1)

[Claims] A large number of sets of clip arm groups T31 (31... The tension springs (11) provided between each set of arms are arranged so that the rollers 0'!J at the tips of the levers (7) provided on each arm (3) on the minus side are arranged concentrically with the rotor. The clip arms of each set (
31 (in a rotary armed packing and packaging machine in which the interval between 31 is changed to open and close the opening of the bag (c) supported by these clips, a conical slope is formed on the curved surface of the cam Q3, and A cylindrical body is disposed below the cam, and a shaft Q4 supporting the cylindrical body and the same cylindrical body αη
The cam sardine is moved up and down along the axis t14 by the propulsive action of the formed screw element (==), while a bag loading plate ( A pair of wall plates (1) and (1) are placed opposite each other on the upper surface of the plate, and a handle shaft 6η is provided parallel to the bag loading plate, and a handle shaft 6η is provided symmetrically to the axis. In contrast to the right-hand thread (to) and left-hand thread formed in
The female screws of the bosses (to) (to) are engaged with the female threads of the bosses (to) (to), respectively, and the driven shaft (four sides are attached to the outside of the cylindrical body aη) is connected to the handle shaft 07) via a gear 0υ. At the same time, the driven shaft 13+=provided worm gear (44
) is engaged with the oblique angle (c) formed on the two curved surfaces of the cylindrical body α.