JP2588213Y2 - Tape application device - Google Patents

Description

[Detailed description of the invention]

[0001]

[Purpose of the invention] This invention is to automatically put a box made of plastic foam, etc., which has contents such as fruits, seafood, etc., and cover it with an adhesive tape, etc. The present invention relates to a tape attaching device for attaching and sealing, and an object of the present invention is to provide an improved structure of Japanese Utility Model Application No. 62-149186 which has already been proposed by the present applicant.

[0002]

2. Description of the Related Art As means for applying an adhesive tape or the like to the closing of the upper lid of a box made of a plastic foam or the like, a method of sealing the entirety of the closing lid of the upper lid and a method of sealing the upper lid so far. A method is adopted in which the ends of the U-shape are faced and both sides are sealed while leaving some seams. However, of the pasting methods that have been adopted in the past, in the latter case, the length of the U-shaped tip is constant and cannot be adjusted, or the adhesion to the box may be incomplete. Many,
It was not possible to achieve a sufficient sealing method. In the former case, in which the entire surface is always sealed, the adhesive tape is wasted. Therefore, it has been desired that the length of the adhesive tape to be applied can be appropriately selected according to the contents.

[0003] Further, as the box feeding mechanism, a constant speed one-way feeding mechanism such as a roller conveyor, a belt conveyor or a chain conveyor is generally used.
Due to the rear surface and intermittent feeding, the weight of the box and the feeding device was not constant, the stop position was not determined due to inertia, and the adhesion of the tape was poor, which was inconvenient for work. This is due to the fact that the feed mechanism is a low-speed one-way feed and the feed speed is limited.

[0004] Therefore, in order to enable high-efficiency work, to send the box at a high speed and to stop it, the operation and stop can be stopped at a fixed position regardless of inertia. The return mechanism is a tape application device with a new structure that has been developed and realized in order to achieve ideal feed with stepless increase and decrease, stop, and stepless feed at constant stop positions before and after the stop. In the following, the configuration will be described in detail together with a typical embodiment of the present invention.

[0005]

The tape sticking apparatus of the present invention is basically provided with a box-shaped pedestal having an upper surface formed on a table for mounting and advancing a box, and intersecting the box on the table in the box advancing direction. And a box feeding mechanism for intermittently moving the box on the table surface. Then, the adhesive tape supply mechanism intersects in the box moving direction so that the height position from above the table surface can be adjusted approximately in the middle of the box conveying process, and crosses in the box moving direction, and has a shallow mountain-shaped arrangement in a plane arrangement. Has a pair of adhesive tape pressing action rods that reciprocate in a symmetrical horizontal plane corresponding to half the width of the box from the center, respectively, and the reciprocating movement of the adhesive tape pressing action rods of the fixed position sensor The opening operation is performed up to the full width of the moving box by sensing the front surface of the moving box, and the closing operation is performed in close contact with each other by sensing the rear surface of the moving box.

In the box feeding mechanism, the link rod has its lower end side pivotally supported by a fulcrum at the lower portion of the inside of the box-shaped pedestal, and its upper end is located near the lower surface of the box-shaped pedestal table. The push plate, which is restricted only to fall forward, is axially mounted on a linear motion piece with a push plate that protrudes from the top of the table, and intermittently swings in the vertical plane. Bottom dead center in the vertical intermittent swinging of the link rod of the box feeding mechanism, and the opening operation of the pair of adhesive tape pressing action rods of the adhesive tape supply mechanism, and The top dead center in the vertical intermittent swinging of the link rod of the box feed mechanism and the closing operation of the pair of adhesive tape pressing action rods of the above-mentioned adhesive tape supply mechanism are linked with each other. Below in the intermittent swing of the link rod in the vertical plane At the time of swinging from the point to the top dead center, the reciprocating motion of the pair of adhesive tape pressing action rods of the above-described adhesive tape supply mechanism is stopped, and the space between the pair of adhesive tape pressing action rods is the full width of the movable box body. The gist of the present invention is a configuration that is kept to be held.

The box-shaped pedestal has a smooth upper surface, is formed of a plastic foam or the like, and is formed on a table on which an upper lid-type box is placed and advanced. An adhesive tape supply mechanism to be described later is mounted, and a box body feed mechanism is incorporated using a space below the table, and its outer periphery is closed by a cover plate or the like as necessary. .

The adhesive tape supply mechanism is arranged substantially in the middle of the box conveying process and is arranged in a crossing manner in the box moving direction so that the height position from the table surface can be adjusted. A spline shaft is laid horizontally so as to have a length corresponding to the table width, and a shallow mountain-shaped arrangement in a plane arrangement, and the spline shaft has a symmetrical horizontal plane in a range from the center to the left and right half of the box width. A pair of adhesive tape pressing rods are inserted so as to reciprocate inward, and each of the pair of adhesive tape pressing rods is a limit switch linked to a fixed position sensor that catches the front and rear surfaces of the movable box. Attached in a symmetrical arrangement to the chain that rotates forward and backward by the operation of, and with either forward or reverse rotation, the adhesive tape pressing action rods open or open to the full width of the target box Was It is formed so as to close the contact shape from the state. Therefore, by adjusting the operation of the limit switch, the opening and closing operation of the optimum width in the left-right direction according to the target box width becomes possible.

A pair of left and right pressure-sensitive adhesive tape pressing rods are arranged at approximately the middle of the entire transporting process of the box feeding mechanism, and the adhesive tapes disposed on both sides thereof are closed with the upper lid of the box, closed with a sliding lug or It has the function of guiding and sticking at the joints except for a predetermined width on the front side and the rear side center portion, and crosses in the traveling direction of the box feeding mechanism, and has a flat and shallow mountain-shaped arrangement (that is, a box body). The angle of the chevron in the direction of travel of the feed mechanism is an angle of inclination of about 2 to 5 degrees from the center to the rear of the straight line perpendicular to the direction of travel of the box body feed mechanism. Each of the spline shafts is arranged so as to reciprocate in a symmetrical horizontal plane corresponding to a half of the width of the box from the center.

The reciprocating motion in a symmetrical horizontal plane corresponding to half the width of the box guided by the spline shafts of the pair of pressure-sensitive adhesive tape pressing action rods causes the chains, which are attached to each other, to rotate in the forward and reverse directions. The pair of pressure-sensitive adhesive tape pressing rods are symmetrically attached to either side of a parallel chain, and both of them are rotated by either forward or reverse rotation of the chain. A horizontal reciprocating motion is generated in which the box opens from the center to the full width in the left-right direction and closes to the center by the reverse rotation.

The starting point of the reciprocation in the horizontal plane is that when the pair of pressure-sensitive adhesive rods is opened, the front surface of the box forcibly conveyed by the box feed mechanism is positioned immediately before the pair of pressure-sensitive adhesive rods. When the pair of adhesive tape pressing action rods closes, on the other hand, the box body forcibly conveyed by the box feeding mechanism passes between the pair of adhesive tape pressing action rods and reaches the rear surface. The start point is detected by a sensor, and a limit switch for starting and stopping the circumferential movement of the chain is incorporated at a predetermined position of the chain so as to interlock with the start point.

The limit switch is also located at a predetermined position after the reciprocating movement in the horizontal plane for opening or closing, which is triggered by the starting point described above, that is, the position where the box width is full in the opening direction and the center of the box in the closing direction. Alternatively, it also has a function of correctly stopping at a position separated by a predetermined width from the center. In addition, these pair of adhesive tape pressing action rods can adjust the stroke of the reciprocating motion in the horizontal plane appropriately according to the width dimension and the position of the upper lid closing joint depending on the type of the box, and It is very convenient to combine a configuration in which the height position from the body feeding mechanism can be freely adjusted. This height adjustable configuration is
It goes without saying that the mountain-shaped spline shafts attached to the pair of pressure-sensitive adhesive tape pressing rods are solid, and the chain and the pair of left and right pressure-sensitive adhesive tape rolls are formed together.

The adhesive tapes are disposed one by one in a flat and rotatable manner on holders provided at the rear ends of both ends of the spline shaft. In each case, the adhesive surface is located rearward (that is, the box advances). Side), the ends are bonded and connected to each other, and are stretched in a state of being substantially parallel to the spline axis. Each of the pressing action rods must be in contact with each other, and the distance from the spline shaft is set in advance so as to be optimal. Hereinafter, a description will be given of a typical embodiment of the present invention so that the configuration of the present invention described above becomes clearer.

[0014]

[Embodiment 1] As shown in each step A, B and C of the plan view of FIG.
From the left and right in the feeding direction of the box D, the paper is sent out in such a manner that the rear side (the side facing the direction in which the box B moves) becomes an adhesive surface, and the tips are bonded and connected to each other. It becomes a book. In addition, a cutter is built in the pressure-sensitive adhesive tape pressing action rods 15, 15,
When the shutter is closed, the cutters are pushed
Cut the adhesive tape at the front center. Although the cutter is not shown in the drawing, the cutter is automatically set when the adhesive tape pressing action rods 15 and 15 are opened.

The box body B is fed, and is in contact with the pressure-sensitive adhesive tape pressing action rods 15, 15 with the pressure-sensitive adhesive tape 16 held in a sandwiched state (the link rod 5 that swings intermittently in the front-rear direction is at the bottom dead center, that is, FIG. 2
State. ), And the pressure tape acting rods 15, 15
Behind, the adhesive surface of the adhesive tape 16 is pressed and adhered to the lid boundary substantially at the center of the front surface of the box B, and the box B is stopped.
(See FIG. 4A)

At the same time, the fixed position sensor (omitted in the figure) catches the front of the box B, and the limit switch is turned on.
In this state, the opening / closing motor 17 is operated, and a chain belt (not shown) starts to rotate to open the pair of adhesive tape pressing action rods 15, 15 left and right with the spline shaft 15 a as a guide. Since the adhesive tape 16 slides left and right while being in contact with the non-adhesive surface side of the box 16, the adhesive surface of the adhesive tapes 16 and 16 is pressed and adhered to the lid boundary portion on the front surface of the box B, and the link is formed. The rod 5 moves out of the bottom dead center and starts swinging toward the top dead center. However, the variation of the upper end side of the link rod 5 before and after the bottom dead center is extremely slow, and Is stopped for a short period of time while the lower part of the rear surface of the box B is kept pressed in a state of being almost stopped, during which the pair of adhesive tape pressing action rods 15 It is possible to finish the opening operation up to the full width of body B Ri, the pressure-sensitive adhesive tape pressing action rod 15,1
When the opening operation of the link rod 5 is completed, the horizontal movement of the upper end of the link rod 5 becomes remarkable, and the box body B is pushed between the adhesive tape pressing action rods 15 by the horizontal movement of the push plate 8 in the forward direction. The adhesive tapes 16, 1 in contact with the adhesive tape pressing action rods 15, 15
6 remains pressed against the lid boundary on the side surface of the box B, and attempts to reach the rear surface of the box B via the state of FIG. 4B.

As the box body B is further pushed and the link rod 5 approaches the top dead center (state 5a in FIG. 5), the advance speed of the push plate 8 also slows down and reaches the top dead center. Immediately after the reversing operation, the push plate 8 substantially stops and stays in a state close to the state for a short period of time. At this stage, the home position sensor catches the rear surface of the box B, and until then. This time, the opening / closing motor 17 that has been stopped is operated in the reverse direction, and the chain belt (not shown) starts to rotate in the reverse direction to close the pair of adhesive tape pressing action rods 15, 15 with the spline shaft 15a as a guide. The adhesive tape pressing rods 15, 15 are respectively provided with adhesive tapes 16, 1.
6, sliding toward the center while being in contact with the non-adhesive surface side, pressing the adhesive surface of each adhesive tape 16 against the lid boundary portion on the rear surface of the box B, and bonding it. Finally, when the tape finally reaches the center from the left and right, the two adhesive tapes 16, 16
It is sandwiched between the pair of pressure-sensitive tape pressing action rods 15 and 15 and adhered to each other.
The link rod 5 starts to turn back from the top dead center toward the bottom dead center side, and in response to the forward tilting operation of the push plate 8, the box B is cut by a cutter (not shown) built in any of the adhesive tape pressing action rods 15. Then, the adhesive tapes 16 and 16 around the lid boundary substantially at the center of the rear surface are cut, and the bonding process of the adhesive tapes 16 and 16 over the entire periphery of the lid boundary of the box B is completed. At this stage, since the state without the box B in FIG. 4A is realized, the next box B 'is fed. The above is the tape attaching process.

The rotation of the crankshaft 2 is intermittently rotated by a one-rotation clutch or a brake motor or the like with the position in the side view of FIG.
The downward return is fast, and one stroke is stopped at the origin by the rapid return movement.
Crankshaft 2 rotated at a constant speed by drive motor 14
Is mounted on a box-shaped gantry 1 and has a crank 3 fixed at one end thereof, a roll 4 mounted on the end thereof, and rotates in a groove in a link rod 5 having a U-shaped cross section to move up and down. A linear motion shaft 6 is provided at a position perpendicular to the upper part of the crankshaft 2, and both ends thereof are fixed to the gantry 1. Then, the linear motion piece 7 is inserted into the linear motion shaft 6 so as to be able to linearly move. At the lower part of the linear motion piece 7, the upper end of the link rod 5 is
Axle with The lower end of the link rod 5 is loosely fitted to a fulcrum roller 12 of a fulcrum pin 11 attached to the box-shaped gantry 1, and is pivotally supported so as to be able to expand and contract while changing its direction as the crank 3 rotates. As a result, the rotation of the crankshaft 2 causes the link rod 5 to swing back and forth and up and down with the fulcrum pin 11 as a fulcrum, and the linearly moving piece 7 reciprocates linearly in the front and rear directions in the horizontal plane.

[0019]

[Function and Effect] The box body B is fed into the upper surface of the box-shaped gantry 1, and the push plate 8 attached to the linear moving piece 7 projects from the opening 13 of the box-shaped gantry 1 and is attached to the hinge shaft 9. In addition, it is vertically held by a spring and a stopper (not shown), and is formed so as to be able to perform one-way intermittent feed for sending the box B only forward. When the crank 3 rotates upward, it is long, and on the lower side, it is made to perform a quick return operation. At the top dead center and the bottom dead center in the forward and backward swinging of the link rods 5 at the front and rear ends, the instantaneous stop is performed. Become. Therefore, heavy box B
Even in the case of feeding, it always stops at the fixed position before and after, and the box feeding of the ideal tape application machine can be performed, and efficient feeding without moving due to inertia can be realized.

On the other hand, when the rear lid boundary portion is adhered, the pair of adhesive tape pressing action rods 15 and 15 move toward the center while moving horizontally in the closing direction from both sides of the box B to the center. In order to realize a state in which the rear surface of the box B is strongly pressed, and it is possible to obtain a reliable state that cannot be obtained by the sticking means simply moving in the lateral direction along the rear surface of the box B. The effect that the sticking effect can be exhibited can be provided. In addition, since the return time is short depending on the feed time, the waiting time is short and efficient work is possible.

As described above, the tape sticking device of the present invention increases the sticking strength to the box, especially the front and rear surfaces, which could not be realized by the conventional device of this type. Economically feasible,
This is a great feature that the sealing of the upper lid type box can be completed.

[Brief description of the drawings]

FIG. 1 is a plan view showing a typical embodiment of the present invention.

FIG. 2 is a side view showing a typical embodiment of the present invention.

FIG. 3 is a front view showing a typical embodiment of the present invention.

FIG. 4 is a work process diagram of tape application according to a typical embodiment of the present invention.

FIG. 5 is a perspective view of a main part of a representative embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Box-shaped base 2 Crankshaft 3 Crank 4 Roll 5 Link rod 6 Linear shaft 7 Linear piece 8 Push plate 9 Hinge shaft 10 Pin 11 Support pin 12 Support roller 13 Opening 14 Drive motor 15 Adhesive tape pressing action rod 15a Spline shaft 16 Adhesive tape 16a Holder 17 Adhesive tape pressing rod opening / closing motor B, B 'Box

Claims (1)

(57) [Scope of request for utility model registration] 1. A box-shaped pedestal having an upper surface formed on a table for mounting and advancing a box, an adhesive tape supply mechanism arranged to cross the box on the table in a traveling direction of the box, and It consists of a box feed mechanism for intermittently moving the box forward, and the adhesive tape supply mechanism is located near the middle of the box transfer process and the height of the box from the table surface can be adjusted. Crossed in the body advancing direction, have a pair of adhesive tape pressing action rods that are inserted through the spline shafts that are arranged in a shallow mountain shape in a planar arrangement and that reciprocate in a symmetrical horizontal plane corresponding to half the width of the box from the center, The reciprocating movement of the sticking tape pressing action rod makes the opening operation up to the full width of the box by sensing the front surface of the moving box of the fixed position sensor, and performs the closing operation to be in close contact with each other by sensing the rear surface of the moving box. On the other hand, the box feed mechanism The lower end of the rod is loosely supported on a fulcrum at the lower portion of the inside of the box-shaped gantry, and the upper end is connected to a linear motion shaft horizontally arranged in the front-rear direction near the lower surface of the box-shaped gantry table. A push plate that is inserted and restricted only to fall forward is axially attached to a linear piece with a push plate that protrudes from the upper surface of the table so that it swings forward and backward intermittently in the vertical plane. The bottom dead center in the vertical intermittent swing of the adhesive tape, the opening operation of a pair of adhesive tape pressing rods of the adhesive tape supply mechanism, and the top dead center in the vertical intermittent rocking of the link rod of the box feed mechanism While linking the closing operation of the pair of adhesive tape pressing action rods of the adhesive tape supply mechanism,
When swinging from the bottom dead center to the top dead center in the vertical intermittent swing of the link rod of the box feed mechanism, the reciprocating movement of the pair of adhesive tape pressing action rods of the adhesive tape supply mechanism is stopped, A tape application device characterized in that the pressure-applying rods are kept to be kept at the full width of the movable box body.