JPH0653439B2 - Sealing machine - Google Patents

Description

The present invention relates to a sealing machine. More specifically, you can set the envelope with the flap (folding part for sealing) open, glue the flap, fold the flap and press the flap semi-automatically just by reciprocating the grip. Regarding office machines for sealing.

[Conventional technology]

Heretofore, no simple office machine has been known that can automatically glue an envelope to a flap and fold the flap.

In other words, even if there is a device that automatically cuts from roll paper etc. into the shape of an envelope, folds it, glues it, and continuously manufactures many envelopes of the same shape with the flaps open, even if there are actually documents inside the envelope, There is no known office machine used for semi-automatically performing the sealing operation at the office work where the insert is inserted.

[Problems to be solved by the invention]

For sealing work, gluing the flap, folding back the flap,
A series of operations with different properties, such as pressing the folded flap, is required. Therefore, especially when enclosing a large number of envelopes at one time, hold or release the glue, or fold the glued flap cleanly without touching the glue.
The work of holding down with a certain amount of force is extremely complicated.

The present invention focuses on such a problem, and an object thereof is to provide a simple device capable of efficiently and easily sealing a large number of envelopes.

[Means for solving problems]

The sealing machine according to the present invention includes a base plate on which an envelope is placed, a slider that reciprocates on the base plate in the direction of the fold line of the flap of the envelope, and a glue holder that is vertically movable on the slider. Tool, an elevating mechanism for lowering the glue holder when the glue holder approaches one end of the flap and raising it when the glue holder passes the other end of the flap, and the glue holder holds the other end of the flap. After passing, the flap is rotated so as to be folded, and immediately before the glue holder returns to the original position in the backward direction, the rotary plate that reverses to the rotary position and the rotary plate that is rotated with respect to the slider. It is composed of a pressing roller which is provided so as to roll over and is elastically biased downward.

The elevating means is a spring for urging the glue holder upward,
A lowering means for lowering the glue holder against the spring when the glue holder approaches one end of the flap, a locking means for locking the glue holder in the lowered position, and a glue holder And a lock releasing means for releasing the lock when the other end of the flap is passed.

In the sealing machine of the present invention, even when the glue holder is lowered, even if it is not at the other end of the flap, the movement direction of the glue holder changes when the glue holder is returned to its original position. It is preferable to provide an early release mechanism that activates the lock release means in accordance with the above.

Further, it is preferable that the slider is provided with a crease roller that rolls through a line that is to be a fold of the flap to make a fold.

[Work]

When the envelope with the back surface of the flap, that is, the adhesive surface facing upward, is placed on the base plate and the slider is moved in the forward direction,
When approaching the vicinity of one end of the flap, the glue holder is lowered by the elevating means and begins to apply glue to the back surface of the flap. By moving the slider as it is in the forward direction, the glue is linearly applied to the back surface of the flap. At that time, if the envelope is inflated, the pressing roller flattens the envelope.

When the slider is further moved to pass the other end of the flap, the glue holder is moved up and down by the elevating means, and at the same time, the rotary plate rotates so as to fold the flap.

Then, when the glue holder is moved in the backward direction, the pressure roller rolls and passes over the rotary plate, and the glue is firmly applied. When the slider is returned to its original position, the rotary plate returns to its original angular position.

〔Example〕

 Next, the sealing machine of the present invention will be described with reference to the drawings.

FIG. 1 is a partially cutaway perspective view showing an embodiment of the sealing machine of the present invention, FIG. 2 is a plan view of the sealing machine shown in FIG. 1, and FIG. 3 is (III)-(III of FIG. ) A line sectional view, FIG. 4 is a partial sectional side view showing an example of a lifting mechanism according to the present invention, FIG. 5 is a perspective view showing an example of a torsion leaf spring according to the present invention, and FIG. 6 is FIG. (VI)-(VI) line sectional view of FIG. 7, FIG. 7 is a sectional view showing an example of a drive mechanism of a rotary plate according to the present invention, and FIG. 8 is a partial sectional view showing an example of an early release mechanism according to the present invention. FIG. 9 is a side view, FIG. 9 is a perspective view showing an example of the head of the glue container according to the present invention, and FIG. 10 is a sectional view taken along line (X)-(X) of FIG.

First, an outline of the sealing machine of the present invention will be described with reference to FIG.

The enclosing machine shown in FIG. 1 has a box-shaped case (1) in which various mechanisms are incorporated, and the upper plate of the case (1) is a base for mounting the envelope (2). It is a board (3). Case
In (1), a round rod-shaped guide rod (4) and a guide rail (5) having a C-shaped cross section are provided parallel to each other.

The guide rod (4) and the guide rail (5) slidably engage with the lower end of the slider (6), which is roughly U-shaped.
It guides the reciprocating linear motion of (6). The first
The movement of each part of the sealing machine shown in the figure is the slider (6)
It is interlocked with the above-mentioned reciprocating motion and is caused by the reciprocating motion.

A glue holder (7) for accommodating the glue container (15) is provided at the upper end of the slider (6) so as to be able to move up and down, and is driven up and down by an elevator mechanism (N) described later.

A rotary plate (9) is arranged at a position where the flap (8) of the envelope (2) is located, and the rotary plate (9) is supported by a crank (10). One end of the crank (10) is reciprocally rotated by a reversing mechanism (11) provided on the front side (hereinafter referred to as the front side) of the guide rail (5) in FIG.

A holding claw (12) for fixing the envelope (2) and an envelope pressing function (13) for driving the pressing claw are provided inside the case (1) on the opposite side (hereinafter referred to as the rear side) in FIG. It is provided.

In addition, in Fig. 1, (14) is when the sealing machine is not used,
The glue container (15) is a recess for accommodating the cap (15a) in a covered state, and (16) is a metal fitting for aligning the rear end of the envelope (2). Bracket (16) has arrows (A), (B)
It can be adjusted in the direction and is fixed at a suitable position according to the length of the envelope (2).

Next, the configuration and operation of each mechanism will be described in detail with reference to sectional views and the like.

As shown in FIG. 3, the inside of the case (1) is hollow, and the guide rod (4) passes near the end.
The guide rod (4) is fixed to the case (1) at both ends thereof as shown in FIG. Further, the guide rails (5) described above are welded to the lower surface of the base plate (3) which is the upper plate of the case (1), and both ends thereof are welded to the front and rear side walls of the case (1), respectively. The guide rail (5) also serves as a reinforcing rib for the case (1).

The block (18) provided under the slider (6) has a hole (19) for inserting the guide rod (4), and the guide rod (4) is inserted through a bearing member such as a metal bush (20). It is slidably provided on the top (see FIG. 8).

A horizontal plate (21) extending horizontally and a vertical plate (22) extending vertically upward are fixed to the block (18). The guide rails on the horizontal plate (21)
A block (25) having a slit (24) slidably engaged with a guide rib (23) at the lower end of (5) is attached with a screw (26).

In the above structure, the slider (6) is mainly a guide rod.
Guide rail (5) is guided by (4) and slider (6)
It stops the rotation around the guide rod (4).

A roller (27) for activating an envelope pressing mechanism (13) described later is rotatably provided at the free end of the horizontal plate (21).

A support plate (29) extending in the horizontal direction is further fixed to the upper end of the vertical plate (22), and a grip (30) for operating the slider (6) is further provided.

Next, the glue holder and the lifting mechanism will be described.

As shown in FIGS. 2 to 3, the support plate (29) of the slider (6) is provided with an oval opening (31) and a step (32). The step (32) forms a guide groove (34) with the L-shaped plate (33) fixed to the lower surface of the support plate (29).
A cylindrical outer cylinder (35) with a collar is inserted into the opening (31), and the outer cylinder (35) is horizontally inserted by inserting the flange (36) into the guide groove (34). It is supported so that its directional position can be adjusted, that is, the gap between the folds of the flap (8) and the glued position can be adjusted. Similarly, a cylindrical inner cylinder (37) is fitted in the outer cylinder (35) so as to be movable in the axial direction and not to rotate around the axis with a key or the like.

A cap (38) is screwed onto the upper end of the inner cylinder (37),
A spring (38a) is provided on the inner surface of (38) for urging the bottom of the glue container (15) housed in the inner cylinder (37) downward. The inner cylinder (37) and the cap (38) form the above-mentioned glue holder (7). The shoulder portion (39) of the glue container (15) is supported by the step portion (40) in the inner cylinder (37).

As shown in detail in FIG. 9, the head (41) of the glue container (15) is rotatably provided with a roller (41a) for guiding the glue to the outside. Therefore, a glue container (1
The detent (42) for 5) extends downward so as to abut the flat portion (41b) of the head portion (41) of the glue container (15).

On the outer surface of the inner cylinder (37), as shown in FIG. 6, key grooves (44) are formed at two axially symmetric locations, and it can slide with the slide key (45) fixed to the outer cylinder (35). The inner cylinder (37) is restricted from moving around its axis by fitting into. The upper end side of the key groove (44) does not penetrate therethrough, and a spring (46) for urging the inner cylinder (37) upward is housed therein.

As shown in FIGS. 3 and 4, a side surface of the outer cylinder (35) has a flat upper end surface (47), and a cutout portion (48) for communicating the inside and the outside of the outer cylinder (35). ) Is formed, the inner cylinder (37)
Also, a flat seating surface (49) exposed to the outside is formed at the same position. As shown in FIG. 6, the seat surface (49) of the inner cylinder (37)
And the side surface (48a) of the cutout portion (48) of the outer cylinder (35) are flush with each other.

A lever (51) is rotatably provided on the seat surface (49) by a pin (50) or the like, and an upper end surface (52) of the lever (51) extends eccentrically rearward and the lever (51) is The outer cylinder (35) is arranged substantially parallel to a position corresponding to the upper end surface (47) of the cutout portion (48) in a state of hanging downward.

The lever (51) has a notch (48) and the like, the base plate (3)
And a dog (53) arranged on a path through which the lever (51) passes, which constitutes a descending means.

That is, in FIG. 4, the inner cylinder (3
7) advances in the direction of arrow (J) together with the slider (6), and the lower end of the lever (51) engages with the dog (53) and is rotated in the direction of arrow (D). The rear end side of the upper end surface (52) contacts the upper end surface (47) of the notch (48) and tries to push it upward.
Therefore, conversely, the lever (51) is pushed downward and the inner cylinder (37)
The lower end of the glue container (15) in the inner cylinder (37) is brought into contact with the flap by lowering it to the position indicated by the dashed line.

If the lever (51) passes the dog (53) as it is, the inner cylinder (37) again rises, and the lowered state is maintained by the lock mechanism described below.

A torsion leaf spring (55) having a stepped portion (56) as shown in FIG. 5 is fixed in the groove (54) shown in the cross section of FIG. The torsion leaf spring (55) is accommodated in the groove (54) while being bent in the direction of the arrow (E) in FIG.
When is lowered and the step portion (56) is below the lower end of the outer cylinder (35), it returns in the direction of the arrow (F). Therefore, at that position the step (56)
And the lower end surface of the outer cylinder (35) are engaged with each other to prevent the inner cylinder (37) from returning upward. The torsion leaf spring (55) is preferable because it can effectively use a narrow space, but other than that, a locking means such as a door latch can be used. As shown in FIGS. 4 to 5, the lower end (55a) of the torsion leaf spring (55)
When the flap (8) is extended to the vicinity of the surface of the base plate (3) and curved backward, even if the flap (8) floats upward, its lower end (55a) holds down the flap (8). Arrow
Since it travels in the direction of (J), the roller (41a) that travels from the rear can stably perform the gluing action.

As shown in FIG. 3, a lever (57) extending in the horizontal direction is connected to the lower end of the L-shaped plate (33) through a spring (58). The free end (59) of the lever (57) is bent downwards. The path through which the free end (59) passes,
A protrusion (60) engaging with the free end (59) of the lever (57) is screwed to the front side of (3) so as to be adjustable in the traveling direction of the lever (57).

The lever (57) and the protrusion (60) form a lock releasing means. That is, when the slider (6) advances in the direction of the arrow (J) in FIG. 1 and the free end (59) of the lever (57) is pushed backward by the protrusion (60), the lever (57) causes the spring (58) to move. ), It bends backward and pushes the torsion leaf spring (55) backward, so that the stepped portion (56) of the torsion leaf spring (55) and the lower end of the outer cylinder (35) are disengaged. This causes the inner cylinder (37) to spring.
It rises with the urging force of (46).

An early release mechanism (63) as shown in FIGS. 3 and 8 is provided to assist the unlocking means.

As shown in FIG. 8, the grip (30) is attached to the upper end of the vertical plate (22) of the slider (6) so as to be movable back and forth (arrow (J) and (K) directions) to some extent. A bar (62) having an elongated hole (61) that fits with the lever (57) extends downward from the grip (30).

If you hold the grip (30) and push the slider (6) in the forward direction (arrow (J) direction), this does not interfere with the action of the lever (57), but on the contrary, on the backward side (arrow (K) side). Lever when pressing
It exerts a function of pushing the (57) backward, thereby releasing the engagement of the torsion leaf spring (55) and raising the inner cylinder (37).

Therefore, for example, if you try to operate the grip (30) accidentally without placing the envelope (2) on the base plate (3) and notice that the inner cylinder (37) has dropped, you try to retract it to the original position. Then, the inner cylinder (37) is automatically raised. Therefore base plate (3)
It is possible to prevent the surface of the product from being soiled with glue.

Next, referring to FIGS. 1 and 2 and 7, the reversing mechanism (11)
Will be explained.

The reversing mechanism (11) is fixed to the U-shaped support (64) fixed to the guide rail (5) and the base (10a) of the crank (10) rotatably supported by the support (64). Hasbappinion (helical gear) (66) and Hasbappinion
It meshes with (66), rod (67) and plate ((6 in Fig. 7
8)) has a hasbar rack (helical rack) (69) that is axially movably guided.

The lotus barrack (69) is connected to the bent portion (70a) at one end of the rod (70), and the other end of the rod (70) is slidably attached to the block (71) fixed on the horizontal plate (21) of the slider (6). It is movably fitted, and a stopper (72) is attached to the end of the rod (70).
Is stuck.

The other base portion (10b) of the crank (10) is rotatably supported by a support (73) fixed to a guide rail (5) as shown in FIGS.

Furthermore, a rotating plate is attached to the arm tip (10c) of the crank (10).
One end of (9) is rotatably supported. The rotating plate (9) is constantly urged in the direction of the arrow (S) by the torsion coil spring (9a).

As shown in FIG. 2, the base plate (3) has two slits (7) for passing the arms (10d) on both sides of the crank (10).
4) and (75) are in the left-right direction (with respect to the moving direction of the slider (6),
A slit (76) is formed in the front-rear direction, which is formed in the vertical direction) and in which the tip side of the rotary plate (9) is housed (see FIG. 3). It should be noted that one of the portions surrounded by the slit (76) and the slits (74) and (75) is located on the rotary plate (9) when the rotary plate (9) is in a fixed position (state shown by the solid line in FIG. 7). Surface and base plate (3)
A stepped portion (77) is formed so that its surface is flush with the surface of the stepped portion (77), and a cushion (77a) made of rubber or the like is provided on the upper surface of the stepped portion (77).

The reversing mechanism (11) constructed as described above operates as follows.

In Fig. 1, the slider (6) advances in the direction of arrow (J),
When the block (71) engages with the bent portion (70a) of the rod (70) and moves the hasbarac (69) in the direction of arrow (J), the haspinion (66) meshing with it moves in the direction of arrow (L). Rotate. At that time, the rotating plate (9) rotates in the direction of the arrow (L) while always contacting with one edge (76a) of the slit (76) of the base plate (3) by the action of the torsion coil spring (9a) and sliding. Therefore, the flap (8) of the envelope is folded back properly.

Next, when the slider (6) is retracted in the direction of the arrow (K), the slider (6) returns to its original position, that is, the pressing roller.
The block (71) comes into contact with the stopper (72) after the (80) is disengaged from the rotating plate (9), and the lotus bar rack (6) is attached via the rod (70).
Move 9) in the direction of the arrow (K). As a result, the haspinion (66), the crank (10) and the rotating plate (9) are reversed and returned in the direction of the arrow (M).

Next, the pressing roller (80) and the fold roller (81) will be described with reference to FIG.

The L-shaped plate (33) fixed to the support plate (29) of the slider (6) is pivotally supported by two levers (82) and (83) extending downward, respectively. (8
2) and (83) are biased by the torsion coil springs (84) and (85) so as to press the rollers (80) and (81) onto the base plate (3).

The pressing roller (80) rolls on the portion of the envelope to be glued on the outward path to smooth the envelope and the documents inside it, and on the return path, the rotary plate is folded back.
(9) It contributes to rolling on the top to firmly glue the flap. The fold roller (81) is formed as a V-shaped protrusion on the outer periphery, and is for making a fold line at the base of the flap (8) in the outward path together with the groove (86) formed in the base plate (3). Is.

The pressing roller (80) and the fold roller (81) ensure accurate folding of the flap and firm gluing. In the embodiment shown in FIGS. 2-3, the tips of the ribs on the upper side of the guide rail (5) are bent upward in the range between the slits (74) and (75), and the portion and the base plate are bent.
The groove (86) is formed by utilizing the edge of the slot (76) of (3).

Next, the envelope pressing mechanism (13) will be described. As shown in FIG. 10, the rear end portion (91) of the plate (90) having two presser pawls (12)
Is supported by a support (92). Therefore, the tip side of the plate (90) is always urged downward due to the elasticity of the plate (90) itself.

Further, a tongue piece (94) gently curved upward is formed on one end side of the plate (90).

The envelope pressing mechanism (13) configured as described above is a slider
The horizontal plate of the slider (6) when (6) is in place.
The roller (27) provided on (21) is located below the plate (90), so that the plate (90) is pushed upward, and the pressing claw (12) and the surface of the base plate (3) are There is a gap (93) between them.

In that state, the side edge of the envelope (2) is inserted into the gap (93), and the slider (6) is moved forward. After the roller (27) is disengaged from the plate (90), the presser pawl (12) is urged downward by the elasticity of the plate (90), and the presser pawl (12) strongly contacts the base plate (3). The envelope (2) can be clamped on the base plate (3) by being contacted.

When the slider (6) returns to the original position, the roller (27) enters below the tongue (94) and pushes the plate (90) upward again, so that the clamp of the presser pawl (12) is released.

The structure and operation of the mechanism of each part have been described above. Next, the mutual operation of each part and the overall operation sequence will be described through the description of the method of using the sealing machine.

First, when starting the sealing operation, place the glue container (1
Insert 5) upside down with the cap (15a) removed.

Then put the envelope (2) on the base plate (3). Then the flap
Position the metal (16) so that the root of (8) rides on the groove (86) through which the fold roller (81) passes.

In that state, grasp the grip (30) and move it forward in the direction of the arrow (J). At that time, according to the movement of the slider (6), the holding claw (12) first clamps the envelope, and then the lever (51) moves the dog (53) when the glue container (15) approaches the flap (8). ), The inner cylinder (37) descends. At that time, the roller (41a) of the glue container (15) contacts the back surface of the flap (8). The inner cylinder (37) is locked by the torsion leaf spring (55) in a lowered state.

Continue to advance the grip (30) as it is and the roller (41a)
The glue is applied to the flaps (8) by the.

When the roller (41a) of the glue container (15) comes off the flap (8), the free end (59) of the lever (57) hits the protrusion (60) and the twisted leaf spring (55) is unlocked. The barrel (37) rises.

When the slider (6) is advanced while holding the grip (30), the rotating plate (9) flaps due to the function of the reversing mechanism (11).
Fold back (8).

Next, while holding the grip (30), move the slider (6) to the arrow (K).
When retracted in the direction, the pressing roller (80) rolls on the rotary plate (9) to ensure the gluing of the flap (8).

Before the slider (6) returns to its original position, the rotating plate (9) returns to its original position by the reversing mechanism (11), and finally the work clamp (12).
The clamp is released.

When the slider (6) is pulled back halfway after the inner cylinder (37) has descended, the early leaf release spring (55) is automatically unlocked by the action of the early release mechanism (63), and the inner cylinder (37) ) And the glue container (15) rise.

It should be noted that in the above embodiment, the Hasba pinion (66) and the Hasbarac
Although the reversing mechanism using (69) is shown, any conventionally known reversing mechanism can be adopted as long as it can convert a reciprocating linear motion into a reciprocating rotary motion of at least about 150 °.

Similarly, as for the lifting mechanism and the like, another mechanism such as a cam mechanism may be adopted.

〔The invention's effect〕

By using the sealing machine of the present invention, a large number of envelopes can be sealed efficiently and cleanly.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of the sealing machine of the present invention, FIG. 2 is a plan view of the sealing machine shown in FIG. 1, and FIG. 3 is (III)-(III of FIG. ) A line sectional view, FIG. 4 is a partial sectional side view showing an example of a lifting mechanism according to the present invention, FIG. 5 is a perspective view showing an example of a torsion leaf spring according to the present invention, and FIG. 6 is FIG. (VI)-(VI) line sectional view of FIG. 7, FIG. 7 is a sectional view showing an example of a drive mechanism of a rotary plate according to the present invention, and FIG. 8 is a partial sectional view showing an example of an early release mechanism according to the present invention. FIG. 9 is a side view, FIG. 9 is a perspective view showing an example of the head of the glue container according to the present invention, and FIG. 10 is a sectional view taken along line (X)-(X) of FIG. (Main symbols in the drawing) (2): Envelope (3): Base plate (6): Slider (7): Glue retainer (8): Flap (9): Rotating plate (10): Crank (11): Reverse Mechanism (51): Lever (53): Dog (55): Torsion leaf spring (63): Early release mechanism

Claims (4)

[Claims] 1. A base plate on which an envelope is placed, a slider which reciprocates on the base plate in a direction of a fold line of a flap of the envelope, and a glue holder provided on the slider so as to be vertically movable. , An elevating mechanism for lowering the glue holder when the glue holder approaches one end of the flap and raising the glue holder when passing the other end of the flap, and the glue holder passed the other end of the flap Later, the flap is rotated so as to be folded, and immediately before the glue holder returns to its original position in the backward direction, the rotary plate is reversed to the original rotary position, and the slider is rotated with respect to the slider. A sealing machine provided with a pressing roller that is provided so as to roll through and is elastically biased downward. 2. The elevating means includes a spring for urging the glue holder upward, and a descending means for lowering the glue holder against the spring when the glue holder approaches one end of the flap. Claim 1 comprising a locking means for locking the glue holder in its lowered position and a lock releasing means for releasing the lock when the glue holder passes through the other end of the flap. The sealing machine described in paragraph. 3. An early release mechanism for activating the lock releasing means based on a change in the moving direction of the slider when the slider is moved in the backward direction after the glue holder is lowered. The sealing machine described in item 2. 4. The slider according to claim 1, wherein the slider is provided with a crease roller for passing a line which is to be a fold of the flap to make a fold, and is elastically biased downward. Sealing machine.