JPS63138914A - Packaging material feeder for heading vegetable packaging machine - 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 (Industrial Application Field) The present invention relates to a packaging material supply device for a machine for packaging spherical vegetables such as lettuce.

(Prior Art) Vegetables that form heads, such as lettuce and kisebetsu, are eaten raw, so they must be individually wrapped in Shichiron paper before being shipped to the market.

Conventionally, head vegetables were placed on a square of cellophane paper, the four corners of the cellophane paper were sequentially folded over the vegetables with one hand, and the folded cellophane paper was opened using a sealing paper with adhesive on the back side. It was sealed tightly.

(Problems to be Solved by the Invention) Such packaging operations require a great deal of effort and time, and have the disadvantage of delaying shipping.

An object of the present invention is to mechanize the above-mentioned packaging operation that relies solely on human power, thereby saving labor and time.

(Means for Solving the Problems) In order to achieve the above object, the present invention stacks a large number of sheet-like packaging materials on a packaging material stand.

A reciprocating plate that can move forward and backward in the left and right direction is provided on top of these packaging materials, and a contact/separation drive mechanism that brings the packaging material table and the reciprocating plate closer to each other and separates them from each other is provided, and the reciprocating plate has an adhesive material receiver. and an adhesive release plate, and is provided with an adhesive material retraction mechanism that causes the adhesive material supported on the adhesive material receiver to emerge and retract downward from a through hole formed in the adhesive release plate, and is interlocked with the forward and backward movement of the reciprocating plate. to drive the approaching/separating drive mechanism and the adhesive material appearance/disappearance mechanism.

When the reciprocating plate is brought close to the packaging material table and the adhesive material on the adhesive material receiver is protruded downward from the through hole of the adhesive release plate to adhere the packaging material on the packaging material table, the reciprocating plate is separated from the packaging material table. Next, when the reciprocating plate moves forward, the adhesive material is recessed above the through hole.

(Function) Next, the function of the present invention will be explained with reference to the drawings. First, when the rotating shaft 4 rotates, the crank 35, which is fixed to the rotating shaft 4 and constitutes the approaching/separating drive mechanism, acts on the support plate 34. to push up the packaging material table 17. As a result, the uppermost packaging material 16 on the packaging material table 17 adheres to the adhesive tape 21 of the adhesive material protruding from the through hole 28 of the adhesive release plate 26. (See Figure 2) Next, when the rotating shaft 3 rotates, the reciprocating plate 18 starts moving forward by the reciprocating mechanism composed of the arm 12 and the like, and when it advances to a predetermined position in the packaging device B, the adhesive material Since the cam 27 constituting the retracting mechanism stands up and pushes down the adhesive release plate 26, the adhesive tape 21 on the packaging material 16 is released (see FIG. 3).

Thereafter, the reciprocating plate 18 retreats and returns to its original position, and the adhesive material protrudes from the through hole 28 of the adhesive release plate 26.

(Embodiment) FIG. 1 is an overall perspective view of a head vegetable packaging machine to which an embodiment of the present invention is applied, and the schematic configuration thereof will be explained prior to detailed description.

In the figure, A is a packaging material supply device according to the present invention, in which only one packaging material 16 such as cellophane loaded on a packaging material table 17 is adhered with an adhesive tape 21 and conveyed to a packaging device B, where the adhesive The state is released and the packaging material is supplied to the packaging device B one by one.

The packaging device B automatically wraps the packaging material 16 when the packaging material 16 is supplied by the packaging material supplying device A and head vegetables such as lettuce, which is the packaging material 46, are placed on the packaging material. Packed with material.

C is a label supply device, and when the packaging material 16 is supplied to the packaging device B by the packaging material supply device A, prior to the packaging operation of the packaging device B.

A label 78 is attached to the end of the packaging material 16, leaving an adhesive margin.

The above is the general configuration of the packaging machine, and next, an embodiment of the packaging material supply device A according to the present invention will be described in detail with reference to FIGS. 1 to 5.

Reference numeral 1 denotes a fuselage body, in which an electric motor 2 that drives each part and each component to be described later are arranged at predetermined positions. The electric motor 2 rotates rotating shafts 3 and 4 by belt transmission. The rotating shaft 3 is rotatably supported by a bearing 5.5, and the rotating shaft 4 is rotatably supported by a bearing 6.6.

The rotating shaft 3 is provided with an intermittent clutch 7 that intermittents the rotational force transmitted from the electric motor 2 to the rotating shaft 3, and the pawl of the intermittent clutch 7 engages with an operating rod 9 operated by an electromagnetic device (solenoid) 8. Configure the system so that it can be intermittent depending on the situation. Therefore, when the electromagnetic device 8 is operated and the operating rod 9 is disengaged from the pawl of the intermittent clutch 7 and the rotating shaft 3 rotates once, the first operating rod 9 engages with the pawl again and the rotation of the rotating shaft 3 can be stopped.

A crank 10 is attached to both ends of the rotating shaft 3, and the crank 10 is connected to an arm 12 through a port and a door 11. The lower ends of the arms 12.12 are attached to both ends of a shaft 14 which is supported by a pair of bearings 13.13 so as to be rotatable about the shaft 14, and the upper ends of the arms 12.12 are attached to both ends of the feed shaft 15. Attach each.

As shown in the figure, the feed shaft 15 is disposed above a packaging material table 17 on which packaging materials 16 are loaded so as to straddle the packaging material table 17, and reciprocating plates 18 and 18 are respectively fixed to both ends thereof. Further, a bearing 1 is provided on the side surface of the reciprocating plate 18.
The upper end of a parallel arm 20 that is rotatable about 9 is fixed. Therefore, when the rotating shaft 3 rotates, the reciprocating plate 18.18 can move forward or backward between the packaging material table 17 and the packaging device B to reciprocate.

FIG. 2 shows a mechanism for adhering the packaging material 16 on the packaging material table 17 and releasing the adhesion on the packaging device B. FIG.

In the figure, reference numeral 22 denotes a pin to which an adhesive material 1, such as an adhesive tape 21, for adhering the packaging material 16 can be attached and detached, and is provided at the front of the reciprocating plate 18. Further, on the front part of the reciprocating plate 18, there are provided a supply roll 23 for supplying the adhesive tape 21, an adhesive tape receiver 24 for receiving and receiving the adhesive tape 21, and a stop bar 25 for sticking and stopping the tip of the adhesive tape 21. establish. Note that when the adhesive strength of the adhesive tape 21 deteriorates, remove the adhesive tape from the stopper bar 25 and remove the adhesive tape 2.
1 upwards as shown.

At the front lower part of the reciprocating plate 18, there is an adhesive release plate 2 made of an elastic body that releases the adhesive tape 21 from the packaging material 16.
Place 6. This adhesive release plate 26 has its rear end fixed to the reciprocating plate 18, and also has a cam 27 which is a push rod.
It can be moved up and down by the action of , as will be described later. When the adhesive release plate 26 is moved up and down by the action of the cam 27, the adhesive tape receiver 24 can be moved in and out through a through hole 28 formed in the front end of the adhesive release plate 26. Note that the adhesive release plate 26 side may be fixed, and the adhesive tape receiver 24 side may be configured to be freely retractable through the through hole 28.

The force 1.27 is rotatably fixed to a desticking rod 29 which is journaled on the reciprocating plate 18.18, and one end of the desticking rod 29 is connected to the arm 12 via rods 30 and 31. A long hole 32 is provided in the rod 31, and a pin 33 is inserted into the long hole 32, and the pin 33 is inserted into the arm 12.
By fixing the rod 31 to the arm 12, the rod 31 and the arm 12 are connected.

The lower part of the packaging material table 17 is supported by a support plate 34 which is rotatable around the upper part of the bearing 5 as the center of gravity, and the support plate 34 is rotated counterclockwise by a crank 35 fixed to the tip thereof by rotation of the shaft 4. Then, the tip of the packaging material table 17 is configured to rise as the packaging material table 17 rotates (see FIG. 4).

An air blower 36 such as a blower is arranged above the packaging material table 17, and a duct 37 is connected to the air blower 36. The duct 37 connects the air outlet 38 to the packaging material table 1.
7, that is, the front end of a large number of packaging materials 16 to be loaded on the packaging material table 17. A wind direction plate 39 for changing the direction of the wind is provided near the outlet 38 of the duct 37, as shown in FIG. 5, and this wind direction plate 39 is configured to be freely adjustable with a lever 40.

Next, the packaging device B will be explained with reference to FIG.

In the figure, 41 is a hollow vertical shaft whose lower end is fixed to a bearing plate 42. A shaft 44, which has a receiving plate 43 fixed to the upper end to which a packaged object 46 such as head vegetables is placed, is inserted into the hollow part of this vertical shaft 41 via a spring 45, and the shaft 44 is pushed upward by the spring 45. Always energized. 65 is packaged item 4
6 is a switch that operates when the shaft 44 is lowered by being placed on the receiving plate 43, and a micro-sinch or the like is suitable.

Reference numeral 47 denotes an annular sliding member which is inserted through the outer periphery of the vertical shaft 41 and is capable of vertically reciprocating movement, and is attached to the U-shaped portion of the upper and lower arms 49 by pins 48 . Slide member 47
A push-up cup bearing 50 is provided at the upper part of the push-up rod 51, and the lower ends of the plurality of push-up bars 51 are supported by this bearing 50, so that each push-up rod 51 can be freely rotated.

52 and 53 are wrapping plates each having a curved surface corresponding to the outer shape of the object to be packaged 46, and a sponge 58 is attached to the upper surface of the wrapping plate, and one end of both is connected with a pin 54 so that it can be bent freely. do. The other end of the wrapping plate 52 is connected to the receiving plate 43.
It is rotatably supported via a pin 94 on a cover plate receiver 55 integrated at the lower part of the cover plate. The wrapping plate 53 is supported by a V-shaped support plate 56, and the support plate 56 and the push-up rod 51 are connected by a connection plate 57. Further, a spring 59 is stretched between the bottom surface of the wrapping plate 52 and the support plate 56, and the wrapping plate 52
and the wrapping plate 53 are opened outward.

The upper and lower arms 49 are connected to a shaft 6 whose terminal end is provided on a rotating plate 63.
It is rotatably attached to 2, and the rod 6 is attached to the middle of it.
1 and 6 connected to one end of the rotating shaft 4 via a crank 35 at the other end of the rotating shaft 4.

An intermittent clutch 67 is provided for intermittent rotational force, and a pair of pawls 66 of the intermittent clutch 67 are configured to engage with an operating rod 69 which is rotated around the upper end by an electromagnetic device 68. This intermittent clutch 67 has almost the same structure as the intermittent clutch 6, except that a pair of pawls 66 are provided so as to stop the clutch every time the shaft 4 makes a half rotation.

Further, the electromagnetic device 68 operates to disengage the six operating rods from the pawl 66 of the intermittent clutch 67 and re-engage them in response to the switch 65, thereby rotating the shaft 4 by half a rotation.
When the rotating shaft 4 rotates once.

As the upper and lower arms 49 move up and down, the slide member 47 can reciprocate.

The aforementioned rotating plate 63 is configured in an L shape, and one end thereof is rotatably supported on a bearing 70.

The other end is connected to an adjustment lever 72 via a connecting rod 71. The adjustment lever 72 has its lower end rotatably attached to an adjustment mounting plate 73 provided on the body 1 with a pin 74, and a guide rod 75 passes through its upper end. And that guide rod 7
5 is inserted into an arc-shaped guide groove 76 provided on the adjustment lever mounting plate 73. Although not shown, the adjustment lever 7
A mechanism is provided to fix the position of 2.

Therefore, the adjustment lever 72 can be adjusted according to the size of the packaged object 46.
When operated, the rotating plate 63 rotates in conjunction with this, so the position of the shaft 62, which is the fulcrum of the upper and lower arms 49, moves up and down, thereby adjusting the degree to which the wrapping plates 52 and 53 are closed inward. adjusted.

Next, the label supply device C will be explained with reference to FIG.

In the figure, reference numeral 77 denotes a tape feeding drum that intermittently feeds a tape 79 to which an adhesive seal 78 is attached, and is rotatably attached to a drum mounting plate 80 vertically disposed on the body 1 by a shaft 81. A tape feed arm 82 is rotatably attached to the end of the shaft 81, and further connected to the shaft 14 via a rod 83 and a crank 84.

Reference numeral 85 designates a drum feed pawl rotatably attached to a predetermined position of the tape feed arm 82 with a pin 86;
The tape feeding arm 82 side is constantly biased by the tape feeding arm 82 side, and the tip of the tape feeding arm 82 is made to come into contact with a protrusion 88 provided on the surface of the team feeding drum 77. A stopper claw 89 prevents the tape feed drum 77 from rotating in reverse, and is constantly biased by a spring 90.

The tape 79 is rotatably attached to a shaft 91, and adhesive stickers 78 are continuously adhered to the surface of the tape 79, and small holes 92 are provided between the adhesive stickers 78.
This small hole 92 is a protrusion 88 provided on the tape feed drum 77.
Configure it to fit. Reference numeral 93 denotes an adhesive seal separating plate, which separates the adhesive seal 78 from the tape 79 when the tape 79 is intermittently fed by the tape feeding drum 77 as described later.

Note that this packaging machine is provided with an operation panel (not shown), and on this operation panel, in addition to a power switch, various switches for instructing the operation of each part are arranged.

Next, an example of the operation of one or more packaging machines will be described.

First, when the author turns on the power switch placed on the operation panel, the electric motor 2 and the blower 36 become operational. Second, when the packaging material supply switch (not shown) is operated, for example, the electromagnetic device 68 starts operating. When activated, the operating rod 69 is disengaged from the pawl 66 of the intermittent clutch 67, and the crank 35 of the rotating shaft 4 rotates once.

As a result, the crank 35 acts on the support plate 34 and pushes up the packaging material table 17, so that the uppermost packaging material 16 on the packaging material table 17 is removed from the pair of left and right adhesive tapes 21 protruding from the adhesive release plate 26. Stick to .21. At this time, since a breeze is blowing out from the air outlet 38 of the duct 37, only one packaging material 16 is adhered to the adhesive tape 21 and separated from the next packaging material 16 without overlapping (Fig. 2). 4), and at this time, the packaging device B is in a state where the wrapping plates 52, 53 are opened to receive the packaging material 16, as shown in FIG.

Next, when the electromagnetic device 8 is activated and its operating rod 9 is disengaged from the pawl of the intermittent clutch 7, the rotating shaft 3 starts rotating, and along with this rotation, the arm 12 rotates counterclockwise, causing a pair of reciprocating motions. Boardwork 8.18 starts moving towards the packaging bag, IB. Further, in parallel with this, the rod 83 starts moving forward, the tape feed arm 82 starts rotating clockwise, and the drum feed pawl 85 starts to rise and begins to move away from the protrusion 88 of the tape feed drum 77.

As a result, when the packaging material 16 adhered with the pair of left and right adhesive tapes 21° 21 moves forward and reaches a predetermined position on the packaging device B, the leading end of the packaging material 16 is pre-aligned as shown in FIG. As the cam 27 comes into contact with the adhesive surface of the adhesive seal 78 that is waiting, the cam 27 rises and pushes the adhesive release plate 26 downward as shown in FIG.
The adhesive tape 21 and 21 are released. At this time, the drum feed claw 85 is completely separated from the protrusion 88 of the tape feed drum 77 and is located at the top.

Thereafter, as the reciprocating plate 18.18 begins to retreat, the rod 83 also begins to retreat.

The tape feed arm 82 rotates counterclockwise and the drum feed claw 85 begins to descend. During this descent, the drum feed pawl 85 descends while catching the protrusion 88, so the team feed re-drum 77 rotates and the tape 79 is fed one pitch. When the tape 79 is fed in this way,
The adhesive surface of the adhesive seal 78 that is on standby sticks to the front end surface of the packaging material 16, and the next adhesive seal 78 is separated from the tape 79 by the adhesive seal separating plate 93, and becomes in a waiting state.

When the rotating shaft 3 completes one rotation, the reciprocating plate 18
．． 18 returns to its original position and enters the standby state as shown in FIG. When the shaft 44 is lowered and the lower end of the shaft 44 comes into contact with the operating piece of the switch 65, the switch 65 is activated. The electromagnetic device 68 is activated in conjunction with the switch 65, and its operating rod 69 is disengaged from the pawl 66 of the intermittent clutch 67, causing the rotating shaft 4 to rotate by half a rotation.

As a result, the upper and lower arms 49 rise and the slide member 4
7 also starts to rise, rises to a predetermined position, and stops.

In parallel with the rise of the slide member 47, each push-up bar 51 also rises, so that the wrapper plate 52 closes the bottle 94 inwardly, and the wrapper plate 53 closes the bottle 94 inwardly around the pin 54, as shown in FIG. The packaged item 46 is in a completely closed state as shown by the imaginary line in the packaging material 16 except for the upper part.
packaged in.

Thereafter, as shown in FIG. 9, the packaging material 16 is folded in the order of 11, C, and 2, and after a predetermined period of time, the electromagnetic device 68 is activated and its operating rod 69 is disengaged from the pawl 66 of the intermittent clutch 67. Then, the rotation +b4 is further rotated by half a turn, so that the upper and lower arms 1149 are lowered and returned to the position shown by the solid line in FIG. 6, and the wrapping plates 52 and 53 are in an open state. Then, as shown in FIG. 10, when the adhesive surface of the adhesive tape 78 is attached to the packaging material 16, the material to be packaged 46
Comes fully packaged.

In addition, as mentioned above, the rotation shaft 4 rotates half a rotation, and the upper and lower arms 4
When the packaging material 9 is raised, the crank 35 acts to push up the packaging material table 17, so that the surface of the packaging material 16 adheres to the pair of left and right adhesive tapes 21, 21, as described above.

Thereafter, by repeating these series of operations, the material to be packaged 46 is wrapped with the packaging material 16.

(Effects of the Invention) As described above, the present invention is capable of adhering the packaging material on the packaging material table with an adhesive material when feeding the packaging material from the packaging material table to a predetermined position, and transporting the packaging material to a predetermined position. Since the adhesive is released when it reaches the position, even if the packaging material is relatively thin and difficult to handle, such as cellophane paper, it can be reliably fed to the specified position with one shepherd. The advantage is that the configuration is relatively simple.

Further, if the great invention is applied to a packaging machine for packaging head vegetables such as lettuce, it is possible to easily mechanize the packaging operation, and the labor and time involved can be significantly reduced.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view of a packaging machine to which an embodiment of the present invention is applied;
Figures 2 and 3 are side views showing the main parts of the packaging material supply device, Figure 4 is a perspective view of the packaging material supply device, Figure 5 is a side view of the duct, and Figure 6 is a front view of the packaging device. FIG. 7 is a diagram showing the relationship between the upper and lower arms and the adjustment mechanism, FIG. 8 is a perspective view of the label supply device, and FIGS. 9 and 10 are diagrams illustrating packaging using packaging materials. 16 is a packaging material, 17 is a packaging material stand, 18 is a reciprocating plate, 21
2 is an adhesive tape, 26 is an adhesive release plate, 27 is a cam, 28 is a through hole, and 36 is a feeder. Patent applicant: Taiki Sangyo Co., Ltd. Representative: Tobe Maki (and 2 others) Figure 2 Figure 3 Figure 4 Figure 5 Figure 8 Figure 9 Figure 10

Claims (1)

[Claims] A large number of sheet-like packaging materials are stacked on a packaging material table, and a reciprocating plate that can move forward and backward in the left and right direction is provided on top of these packaging materials, and the packaging material table and the reciprocating plate an adhesive material receiver and an adhesive release plate are attached to the reciprocating plate, and an adhesive material supported by the adhesive material receiver is provided with a contact/separation drive mechanism for moving the adhesive material closer to or away from the adhesion release plate below the through hole formed in the adhesive release plate. The reciprocating plate is provided with an adhesive material appearing and retracting mechanism that moves toward and out of the packaging material table, and in conjunction with the forward and backward movement of the reciprocating plate, the approaching/separating drive mechanism and the adhesive material appearing and retracting mechanism are driven, and the reciprocating plate is brought close to the packaging material table and adhesive is removed. Once the adhesive material on the material receiver has protruded downward through the hole in the adhesive release plate and the packaging material on the packaging material stand has been adhered, the reciprocating plate is separated from the packaging material stand, and when the reciprocating plate moves forward, the adhesive material is passed through. A packaging material supply device for a head vegetable packaging machine which is recessed above a hole.