JPS63125111A - 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 (Industrial Application Field) The present invention is a packaging method in which a large number of laminated sheets of paper or other hexahedral packaging objects are wrapped in wrapping paper, and the protruding paper pieces of the wrapping paper are folded and overlapped. The present invention relates to an apparatus, and particularly to an improvement of a folding means in the packaging apparatus.

(Prior art) The present inventor has published Japanese Patent Publication No. 57-40006
On February 19th, 2015, we proposed a packaging device that automatically wraps rectangular parallelepiped items. This packaging device stacks wrapping paper and items to be packaged on a table that can be raised and lowered,
The gist of the present invention is to raise the front and back of the wrapping paper as the table descends, and then move the fingers forward to automatically fold the protruding pieces of the wrapping paper. This packaging device has the notable advantages of a compact structure and the ability to be easily mass-produced by one worker.

After that, it gained wide acclaim.

(Problem to be Solved by the Invention) However, in the above device, when the fingers move forward, the folded paper pieces formed by folding the front and rear upstanding pieces of the wrapping paper and protruding horizontally on both sides are moved. Since the folding tool having a pair of slanted sides is provided on both sides of the package, the packaged item is folded into the sides when moving forward, so that the folding of the upper side edges where the weight of the packaged item is not applied is particularly effective. There are problems in that wrinkles occur and it is difficult to form clean folding lines, and improvements in this respect have been desired.

The present invention was made in view of the above, and among the protruding folded paper pieces on both sides formed after folding the front and rear upright paper pieces of wrapping paper, the upper part is folded under a clean fold line without causing wrinkles. To provide a novel packaging device capable of folding the side of an object to be packaged and further folding the lower folded paper piece overlappingly thereon.

(Means and Embodiments for Solving the Problems) The structure of the present invention for achieving the above object will be explained based on the attached embodiment diagrams. FIG. 1 is a longitudinal sectional view showing one embodiment of the packaging device of the present invention, FIG. 2(a) is a perspective view of the folding means of the device, and FIG.
Figures (b) and 2 (c) are perspective views showing the folded state, Figures 3 (a) and 3 (b) are explanatory views showing the sealing tape application means, and Figures 4 and 5 are FIG. 2 is a schematic diagram showing the operating state of the device.

The packaging device of the present invention stacks the packaged articles A sent out from a delivery table 15 on a wrapping paper B fed out from a stacking feeding device 1 on a table 3 which can be raised and lowered, and when the table 3 is lowered. The resulting upright paper pieces Bi, B2 are folded by the reciprocating finger means 4 and the fixed finger means 5, and the lateral up and down folded paper pieces B3, which are generated at this time, are folded.
This is a packaging device in which B4 is folded and packaged by a folding means 6.7, and the folding means 6 includes a pair of folding plates 6o which move upward when the reciprocating finger means 4 moves forward and move downward when the reciprocating finger means 4 moves backward. , 60., on the other hand, the folding means 7 has an upper piece 71 inclined forward and upward, and the upper piece 71 folds the lower folded paper piece B4 upward and the folding plate 60
This is characterized in that the upper folded paper piece B3 is folded downward by the downward movement of the upper folded paper piece B3.

To describe the general working parts of the machine stand F of this packaging device, the latter half is the part where the object to be packaged A is sent out and the wrapping paper B is laminated and fed out, and the central part is the part where the object to be packaged A and the wrapping paper B are piled up. The folding part, the first half, is the part where wrapping paper B is folded and sealed with adhesive tape. In addition, the lower half of the machine F is equipped with a driving means 9 for performing the feeding operation of the feeding device 1 for feeding the wrapping paper B, the vertical movement of the table 3, and the back and forth reciprocation of the finger member 4. has been done.

As shown in FIG. 1, a feed-out stand 15 for sending out the article to be packaged A is provided on the upper surface of the rear half of the machine stand F, and a stacking and feeding device 1 for wrapping paper B is disposed below the feed-out stand 15. The stacking and dispensing device 1 includes a stacking table 11 that laminates a large number of wrapping papers B, and a dispensing member 12 that dispenses the stacked wrapping papers B one by one from the top. The stacking table 11, the feeding member 12, and the feeding roll 13 are
A supporting frame 10 is installed at the lower part of the feed table 15 on a side frame of the machine stand F so as to be slidable back and forth.

The lifting table 3 is an intermediate base F. - A drive means 9 (to be described later) for a block 32 supported by two vertical slide rods 31.31 held movably and fixed jointly to the lower ends of the slide rods 31.31. It reciprocates up and down in response to the driving force, and when it receives the wrapping paper B during its rise and reaches the top dead center, it further receives the stacked articles A and descends, and at the bottom dead center, the finger means The time program is set so that 4 moves back and forth and opens and stops.

The reciprocating finger means 4 includes a pair of side plates fixed to the reciprocating support plates 93 and 93 on both sides of the machine base F, a push plate 42 fixed to the rear between these side plates, and both ends of the push plate. Upper finger pieces 4 arranged horizontally and vertically opposite each other.
3.43, a lower finger piece 44.44, and a horizontal finger plate 41 detachably mounted over both upper finger pieces 43.43,
As will be described later, the lifting table 3 is moved by the driving means 9.
It is interlocked and driven back and forth.

The fixed finger means 5 is the same as the reciprocating finger means 4.
It is disposed on the wrapping paper folding/discharging platform 52 near the forward end position of the reciprocating finger means 4 in opposing relation so as to fit between the upper and lower finger pieces 43,44.

Further, directly above the rear end of the wrapping paper folding/discharging table 52, a vertical fixed plate 53 horizontally suspended in the width direction of the machine table F and a restraining plate 54 that can freely tilt forward and backward are arranged close to each other in the front and back. , the suppression plate 54
normally stands up due to the restoring elasticity of the compression spring (not shown), and when the finger means 4 moves back, it receives a pressing force against the elasticity of the compression spring through the operating rod (not shown) so that its upper end moves forward. It is designed so that it can be tilted.

The folding means 6 and 7 have lower folding paper pieces B protruding from both sides.
a folding member 70.70 for folding up 4 into a half-open state;
Folding plates 60.60 are vertically movably suspended above the folding members and fold the upper folded paper piece B1 of the wrapping paper between the half-opened lower folded paper pieces B4; and the folding members 70.70
It is composed of a lower folded paper piece B which is adjacent to the front and is half open, an upper folded paper piece B which is folded in between, and a second folding member 75, 75 which is completely folded over the upper folded paper piece B. The first folding member 70.7o is made of a substantially trapezoidal plate having an upper side 71 inclined forward and upward at a relatively small angle and a horizontal upper side 72 at the top, and bent so as to open slightly upward from each other. It is formed. The folding plate 60.60 has a substantially convex shape, and is provided with a guide means 64 for vertical linear movement such as a linear way behind an upwardly projecting portion 61 at the center, and the folding member 70. It is suspended and guided by support means 65 at a position above 70 . The support means 65 is movably slidable along a pair of guide rods 66 and 66 that are horizontally suspended between both sides of the machine base F, and the guide means 64 is movably slidable along the guide rods.
It consists of a support body 67.67 with an engaging body 68 attached thereto.

The vertical movement means 63 of the folding plate 60.60 includes a drive rod 63a inserted into a hole 62a of the protrusion 62 on the front side of the folding plate;
Supports both ends of the drive rod 63a and moves forward (
A pair of forward downward moving cams 63b that are moved upward by moving the cams 63b (indicated by the arrow FW) and downward by moving backward (indicated by the arrow BW); and a spring 63c that biases the moving cams 63b forward. Reciprocating support 93.
93 is constituted by engaging protrusions 63d and 63e that engage after a predetermined backward movement and move the moving cam 63b rearward.

The second folding members 75.75 are mutually half-opened at their rear parts in order to smoothly connect the lower folded paper piece B4, which is still half-opened.
The upper folding paper piece B into which 4 is folded is formed from a substantially trapezoidal plate that is tilted forward and upward at a large angle in order to be completely folded upward. Adjacent to the front of the second folding member 75 is a folding member 8 that folds the folding paper pieces B4, B4 projecting upward thereinward.

The sealing tape applying device in this packaging device is capable of attaching protruding paper pieces B1 and B2 of the wrapping paper B folded back and forth by the reciprocating finger means 4 and the fixed finger means 5 (see Fig. 2).
(see Fig. 2 (C)), and the folded paper pieces B1 and B4 [see Fig. 2 (C)] which are folded onto the upper surface of the protruding paper pieces BY and B2 by the folding means 6 and 7. It is arranged at two positions P2, left and right, where it can be sealed in the front and back direction.

The pressing roll 2o in the sealing tape applicator 2a of the above 1i1P is pivotally attached to the lower end of the lower support rod 21 which is inclined from side to side, and as the support rod 21 itself swings from side to side, the pressing roll 20 is attached to the tape short piece. It is attached by rolling the top surface of the t. The means for swinging the lower support rod 21 from side to side includes a lower support rod 22 whose lower end is connected to the upper end of the lower support rod 21 by a pin and whose upper end is connected to the frame f by a pin.
The lower support rod 22, an operating rod 23 that projects at right angles from the middle of the lower support rod 22, has a guide pin 23a projecting from the middle and an operating pin 23b from the tip, and the lower support rod. The 1-operating bin 23b is constituted by a guide rod 24 that is connected with a pin at its lower end near the lower end of the 21 and slidably engaged with the guide pin 23a in an elongated hole 24a in the longitudinal direction of the intermediate portion. Six operating pins are engaged with the drive rod 63a constituting the vertical movement means 63 of 60 so as to be slidable along the longitudinal direction by the weight of the swinging means, and follow the vertical movement of the drive rod 63a. 23b moves downward from the top dead center as the drive rod 63a moves up and down, the upper support rod 22 and the operating rod 23 swing around the fulcrum of the frame f, and the pressing roll at the lower end of the lower support rod 21 swings. 20 also swings to roll the tape strip over it. While the pressing roll 20 is rolling over the tape strip, the lower movement of the first operating rod 23 is carried out by the guide rod 24.
It is absorbed in the long hole 24a through the guide pin 23a, and the pressing roll 20 is rolled left and right to stick the tape strip t. As the operating pin 23b moves upward, the short piece of tape is again rolled by the pressing roll 20 on top and returned to its original position.When the pressing roll 20 is not involved in pasting, the pressing roll 20 is moved away from the surface to be pasted. Guide rod 24 to float
The upper end position of the long hole 24a is determined.

The tape supply block 200 has a sealing tape winding roll T.
A support shaft 201 that rotatably supports the tape, a tape feed roll 202, a cutter 203, and a water roll 204.
These are supported and arranged in a predetermined position by a frame f.

The tape feed roll 202 rotates with the driving force of a drive motor 221, and receives the tape from the winding roll T by means of a receiving member 223 disposed at the lower part of the roll 202 and biased upward by a compression spring 222. Hold the next cutter 2
03.

The cutter 203 consists of a fixed blade 231 and a movable blade 232 that moves up and down. The movable blade 232 is normally held in an upwardly pulled state by a compression spring 233, but when an electric signal is input to a solenoid 234, Then, it rapidly descends along the frame 230, and cuts the tape to an appropriate size by shearing action with the fixed blade 231. The fixed blade 231 is fixed to the frame 230 in a forward biased state by a compression spring 235, and is designed to achieve sharp shearing properties with the movable blade 232.

The water roll 204 is rotatably held with its lower part immersed in a water tank 241, and holds the unrolled tape strip t between it and a pressure roll 242 held in contact with it. The water tank 241 is rotated by the propulsion force.
Lift up the water inside and apply it to the back side (applying side) of the short piece of tape.
It is intended to be adhered to. This water roll 204
The cylinder body 243 is replaceably fitted onto a support shaft 240, and the cylinder body 243 is made of a soft elastic foam resin having a large number of fine open cells, which is immersed in the water tank 241. The material is selected so that it can quickly become wet at times, and quickly dehydrate when separated from the water tank 241, so that an appropriate amount of water can be transferred to the tape strips t.

The frame f includes a support guide rod 66 for the folding plate 60.
It is suspended by two parallel slides 66 and 66 supported on the machine stand F of the packaging device so as to be slidable in the left and right or front and rear directions, and is held so as to be movable up and down by a jacking means 206. It is possible to adjust the three-dimensional position according to the size of object A.

In the case of the sealing tape applicator 2b at the position P2, as shown in FIG. 3(b), the means for swinging the upper and lower support rods 25,26 is a drive motor 211 as shown in FIG.
A crank 212 rotates by the driving force of
The upper support rod 25 is connected to the lower end of the support rod 25 by a shaft, and a pin 213 fixed to the tip of the crank 212 is inserted into the elongated hole 25a along its longitudinal axis. By fitting the lower support rod 25 in a slidable manner along the direction, the crank 212 is rotated to swing the lower support rod 25 back and forth.

The frame f is connected to the pressing roll 20 by the motor 21 as described above.
1 and upper support rod 25, when swinging back and forth,
The motor 211 and the upper support rod 25 are also supported and pivotally held. A roll 2 pivotally supported by the frame f
14 is a lower support rod 2 for lifting the pressing roll 20 from the surface to be applied when the pressing roll 20 is not involved in pasting.
6 in an inclined state. The tape supply block 200 has the same configuration as that in Rpx above.

The drive means 9 includes a motor 90, a crank 91 fixed to the rotating shaft of the motor 9o, and a pair of left and right support plates 93, which are pivotally connected to the tip of the crank 91 and support the finger means 4 at the upper end. 93, a slide block 94 connected to the lower end of the support plate 93, 93 and held by a pair of left and right slide rods 941, 941 so as to be slidable back and forth, and a horizontal cam surface fixed to the slide block 94 on the upper surface. 95
1, a plate cam 95 having an inclined cam surface 952 that is continuously inclined upward in front of the horizontal cam surface 951; is a long hole 962 in the block 32 of the lifting table 3.
It consists of a crank 96 which is locked via a crank 96 and has a roller 963 that rolls on a horizontal cam surface 951 and an inclined cam surface 952 of the plate cam 95 in the middle thereof.

(Function) The procedure for packaging an object using the packaging device configured as described above will be briefly described.

First, the article to be packaged A is placed on the delivery table 2, and a large number of wrapping papers B... are stacked on the stacking and feeding device 1.

Switch the motor 90 to ONL and turn the crank 91 to the arrow S.
direction. As the crank 91 rotates, the support plates 93 and 93 move backward under the action of the connecting rod 92, and the roller 9 moves on the cam surfaces 951 and 952 of the plate cam 95.
63 rolls and the roller 963 begins to move along the slope on the inclined cam surface 952, the crank 96 swings upward using its front end pivot point as a fulcrum, and in response to this swinging action, the crank 96 swings upward using its front end pivot point as a fulcrum. Block 32 and slide rod 31.31 slide upward.

The lifting table 3 starts to rise. At the same time, feed roll 1
3 is activated, the front end of the wrapping paper B that has been slightly fed out by the feeding member 12 is held, and by its rotational force, the wrapping paper B is quickly sent onto the rising table 3 [see Fig. 4 (a)]. . In this case, by adjusting the longitudinal position of the stacking and feeding device 1, the longitudinal position of the delivery roll 13 can be adjusted in advance according to the size of the wrapping paper B. When conveying the wrapping paper B, the front side of the wrapping paper B is properly inserted and placed between the vertical fixing plate 53 and the restraining plate 54, while the rear side is properly inserted and placed on the finger means 4, respectively.

When the table 3 reaches the top dead center, the article A on the delivery table 2 is sent out onto the table 3 by one manual operation and stacked on the wrapping paper B [see FIG. 4 (b)]. At this top dead center, it is desirable to keep the table 3 stationary for a while. Therefore, when the support plate 93 reaches the end position of the backward movement (not shown in the figure), the limit switch is pressed and the motor 90 is automatically activated.
It is designed to stop the rotation of.

When the motor 90 is turned on again after confirming that the wrapping paper B and the article to be packaged A have been correctly placed on the table 3 as described above, the roller 96 is rotated as the crank 91 rotates.
3 slides down along the inclined cam surface 952 of the plate cam 95, and the table 3 rapidly descends. At the same time, the support plate 93.93 starts to move forward, and due to the forward movement of the support plate 93.93, only one sheet of wrapping paper B is paid out.The roller 963 starts rolling on the horizontal cam surface 951, and the table 3 is lowered. When the dead center is reached, the table 3 remains still and the restraint plate 54
stands up and clamps the front end of the wrapping paper B with the fixing plate 53, and the finger means 4 passes over the table 3 [see FIG. 4(c)]. The time program for the downward and stationary movement of the table 3 and the reciprocating movement of the finger means 4 is as follows:
This is done appropriately by setting the shape of the plate cam 95, the vertical stroke width of the table 3, the position of the forward movement start point of the finger means 4, etc. Then, when table 3 is lowered, wrapping paper B
The front side is held and pulled by the restraining plate 54 and the fixed plate 53 to stand up B2, and the rear side stands up B8 by the horizontal finger piece 41 of the finger means 4, and these upright pieces B1 ．． B2 is.

The wrapping paper B is pulled back and forth in response to the clamping resistance between the restraining plate 54 and the fixing plate 53, so that so-called trunk holding is performed, and the wrapping paper B is folded faithfully to the shape of the packaged object A without loosening.

When the finger means 4 hits the packaged item A from above the wrapping paper B and starts to push it out, the horizontal finger plate 41 and the top plate 51 fold these upright pieces Bl and B back and forth, and also The sides are folded into the sides of the packaged item A by means of the upper and lower finger pieces 43,44 and the fixing finger means 5.

Furthermore, the object to be packaged A is moved to the top plate 5 by the reciprocating finger means 4.
1 and the folding/discharging table 52, the lower folded paper piece B4. B, is folded upward into a half-open state by the rear folding member 70, 70, and the upper folded paper pieces B1, B
3 is folded down into the half-open folded paper pieces B, , B4 under a neat folding line by the downward movement of the folding plates 60, 60. At this time, the sealing tape applying device 2a applies a short piece of tape t to the overlapping portion of the protruding paper pieces B1 and B2 of the front and rear wrapping paper.
is glued. And as they are extruded one after another.

Half-open folded paper piece B4. B4 is the front folding member 75.7
5 are completely folded into both sides of the packaged object A, and their upper ends protrude from the upper surface thereof. These folded paper pieces B
, , B are folded onto the upper surface by the side edges 81, 81 of the folding member 8, and are adhered in the front-rear direction with the tape strips t by the sealing tape applying device 2b, completing all packaging operations.

(Effects of the Invention) As described above, according to the packaging device of the present invention, the wrapping paper B is
The lower folded paper piece created by folding the sides of B4.
B4 and the upper folded paper pieces B1 and B are folded without wrinkles due to the vertical movement of the folding plates 60 and 60 of the folding means 6 and the action of the upper piece 71 of the folding means 7 which is inclined upwardly. A clean fold line is created, and the upper folded paper pieces B3 and B3 are folded in a rational manner so that they fit into the half-opened lower folded paper piece B4, which not only makes the packaging neat but also allows automatic continuous packaging work. will be able to continue smoothly.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing one embodiment of the packaging device of the present invention, and FIG. 2(a) is a perspective view of the folding means of the device. 2(b) and 2(c) are perspective views showing the folded state, FIGS. 3(a) and 3(b) are explanatory views showing the sealing tape application means, and FIGS. 4 and 5 The figure is a schematic diagram showing the operating state of the device. (Explanation of symbols) 1... Lamination feeding device, 3... Lifting table, 4...
- Reciprocating finger means, 5... Fixed finger means, 6.7... Folding means, 15... Feeding table, 60
... Folding plate, 71... Inclined upper side, A... Item to be packaged, B... Wrapping paper, r31. B2...Standing paper piece, B
3.B4...Folded paper piece. -End of- Applicant Akiaki Kudo Agent Patent Attorney (6235) Hidehiko Matsuno Figure 2 (b) Figure 2 (C)

Claims (1)

[Claims] 1. Wrapping paper (B) fed out from the lamination feeding device (1)
The packaged object (A) sent out from the sending table (15)
) on a table (3) that can be raised and lowered,
Upright paper pieces (B_1) generated when the table (3) descends
, (B_2) are folded by the reciprocating finger means (4) and the fixed finger means (5), and the upper and lower folded paper pieces (B_3), (B_4) generated at this time are folded by the folding means (6), ( 7), in which the folding means (6) comprises a pair of folding plates (60 ), (60), while the folding means (7) has an upper piece (71) inclined forwardly and upwardly, with the upper piece (71) folding the lower folded paper piece (B_4) upwardly. The packaging device is characterized in that the folding plate (60) is moved downward at the same time to fold the upper folded paper piece (B_3) downward.