JP2777607B2 - Slide table in packing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

The present invention relates to a shape of the slide table in a packing machine which constitutes a mechanism for gripping a band front end side and a supply end side, welding a band overlap portion, and cutting a band supply end between a slide table and each press block.

[Prior art]

In the conventional packing machine, the tree-wrapping band wound around the band coil attached to the packing machine body is moved downward by a pair of feed rollers in the packing machine body under a flat convex slide table tip protrusion. A predetermined band is sent out of the packing machine through a retractable band guide to the outside of the packing machine or into a band guide arch straddling the main body through a pool box in which a predetermined band is stored, and wound around a packaged object placed on the main body. The turned band tip is inserted on a band guide that can be advanced and retracted below the slide table tip protrusion, and is pressed between each of the later-described press blocks and the slide table tip protrusion which are operated by a cam shaft connected to a drive motor. , The grip on the band tip side, the grip on the band supply end side after the band is pulled back and tightened by the reversing roller in the main body, and the heat heated between the band overlapping sections. After the band hot-melt adhesive by inserting the data,
The band supply end is cut and packing is performed. The packing machine packs almost anything that can wind a band, and has a wide range of uses. Some of the items to be packed include muddy lawns and vegetables (for example, Chinese cabbage, mountain potato, radish, Burdock, etc.), and especially lawns need to be packed with a large amount of mud on the roots. The moisture content of the mud attached to the package changes extremely depending on the weather of the day, for example, due to rain or the like.

[Problems to be solved by the invention]

In the slide table of the conventional packing machine,
Particularly, when packing an object to be packed such as lawn or vegetables with mud, if the water content of the mud attached to the object to be packed becomes large due to rain or the like, the band way which is a band passageway on the main body and the band guide. Since the mud adheres to the band in the arch, the mud adhering to the bandway and the tip of the band traveling in the band guide arch is carried to a stopper provided above the band guide and collected there. Furthermore, when packing a mud having a relatively low water content, that is, an object to be packed to which a certain amount of dry soil has adhered, the mud is allowed to move back and forth on each press block or below the tip of the slide table. It will fall on the band inserted in the upper surface. The mud that has fallen on the left pressing press block below the slide table due to the forward and backward movements of the band guide is pressed by the gripping and welding of the band between the slide table and each press block when the band is packed, and the tip of the slide table protrudes. It is firmly fixed to the lower surface of the part, and the amount of sticking of this mud increases each time the packing operation is repeated, and eventually it becomes impossible to insert a heated heater between the bands of the band overlapping part for welding, There was a problem that band welding could not be performed. For example, as shown in FIG. 3 (B), the band B wound around the article to be packed W is pulled back, tightened, and then the left pressing press block 14 is raised to grip the band supply end side, and then the band of the band overlapping section In the process in which the heater 24 is inserted therebetween, the normal state is as shown in FIG. 4 (A). When gripped by the band, the band itself is pressed against the lower surface of the leading end of the slide table 10 by the stiffness of the band itself, and the band on the supply end side has a substantially triangular shape provided on the lower surface of the leading end of the slide table 10. Groove 26
And the tip of the left holding press block 14 is gripped and bent, so that it curves downward from the insertion surface of the heater 24,
The heater 24 is smoothly inserted between the band overlapping portions, but is pressed between the lower surface of the slide table 10 tip protrusion and the middle press block 13 and firmly fixed to the lower surface of the slide table 10 tip protrusion. As shown in FIG. 4 (B), the fixed object 40 is lowered so that the tip of the band collides with the inserted heater 24, while it is formed on the lower surface of the tip of the slide table 10 by the left pressing press block 14. Groove
The fixed substance 40 fixed in the inside 26 loses the effect of bending the band on the band supply side, and the band cannot be bent below the insertion surface of the heater 24. Cannot be inserted into the band, and band welding cannot be performed. In addition, even if the worker removes the mud stuck to the lower surface of the slide table and restarts the packing operation, the work efficiency is reduced. The present invention provides a slide table that allows a band to be welded without sticking mud to the lower surface of a slide table tip protrusion even when packing an object to be packed such as lawn or vegetable to which mud is attached. It is intended to be.

[Means for Solving the Problems]

In order to achieve the above object, in the slide table of the packing machine of the present invention, between the slide table 10 and each of the press blocks 12, the gripping of the band tip side and the supply end side and the bonding of the band overlap portion, the band supply In the packing machine provided with a mechanism for cutting the end, in the slide table 10, the groove 26 portion of the slide table formed so that the tip of the press block 14 gripping the band supply end side is fitted, the band tip side. A plurality of small holes 11 penetrating in the thickness direction of the slide table 10 are provided at positions where the tip of the press block 12 to be gripped and the tip of the press block 13 for bonding the band overlap portion press the band, respectively.
Characterized by the fact that a hole is drilled. The small hole 11 is a press block of a slide table.
It is preferable that the sections 12, 13, and 14 have a truncated conical cross section that expands toward the surface pressing the band.

[Action]

When the object to be packed W such as lawn and vegetables to which mud is attached is placed and packed on the main body of the packing machine equipped with the slide table 10 configured as described above, Mud adhering to the left and right bandways 31, 32 or the band end running on the band guide arch (not shown) is collected at the stopper 17 of the band guide 16 below the slide table 10, or the object W to be packed is dried to some extent. Although the mud falls on the band B passing below the tip of the slide table 10, the mud is not fixed to the lower surface of the slide table 10 even when pressed by the press blocks 12, 13 and 14, and the slide table For example, it is pushed upward through a small hole 11 having a cross-section mounting circle female shape which expands in the plane direction and faces each press block 12, 13 or 14, which is formed in the hole 10.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described with reference to the drawings. FIG. 1 shows a mechanism incorporated in a packing machine main body for gripping a band front end side and a supply end side and welding and cutting a band overlapping portion. The respective mechanisms are mounted on the machine casing 20. However, a heater 24 to be described later is not shown. The machine frame 20 has vertical machine frames 21 and 22 erected substantially in parallel with each other on a substrate (not shown).
The core cam shaft 15 is connected to a rotary drive motor (not shown) provided outside the vertical machine frame 21 on the substrate of the machine frame 20 via a speed reducer. A plurality of cams are axially mounted on the cam shaft 15 between the vertical machine frames 21 and 22 as is known, and a band guide 16, a slide table frame 18, a heater crank 19, and press blocks 12 to be described later. ~ 14 is the camshaft 15
By the rotation of, the band is swung or moved up and down in accordance with the packing process, and the above-described gripping of the band front end side and the supply end side and welding and cutting of the band overlapping portion are performed. The slide table frame 18 is pivotally supported by the cam of the cam shaft 15 between the vertical machine frames 21 and 22, and a flat convex slide table 10 of the present invention is provided at the upper end thereof. Is fixed so as to face above each press block described later. Immediately below the slide table 10, a band guide 16 that is swingable by the cam of the cam shaft 15 is provided. A stopper for stopping the tip of the inserted band or a striker of a limit SW for activating a packing process of band retraction is provided.This band guide 16 is a band fed by a feed roller (not shown). It is for guiding to the left bandway 31 to be supplied to the outside of the packing machine main body or into the band guide arch, and further has a function of forming an overlapping portion between the band front end side and the supply end side. Further, a heater crank 19 for inserting and removing the heated heater 24 is provided on the cam of the cam shaft 15 so as to be freely slidable between the bands of the band overlapping portion formed by the band guide 16. Reference numerals 12 to 14 denote press blocks provided below the tip projections of the slide table 10 and the band guides 16 so as to be vertically movable by rotation of the cam shaft 15, and 12 is a right-press press block, and the slide table Hold the band tip side between 10 and. Reference numeral 13 denotes a middle press block, which presses a band overlapping portion melted by a heated heater with the slide table 10 and cuts a band supply end with the right pressing press block 12. Numeral 14 denotes a left holding press block, which is a member for winding around the object to be packed, pulled back by a reverse rotation roller (not shown), and gripping the supply end side of the tightened band with the slide table 10. As shown in FIG. 1 and FIG. 2, the end protruding portion of the slide table 10, that is, the portion facing the front end of each of the press blocks 12, 13, and 14 penetrates in the thickness direction of the slide table 10. A number of small holes 11 are provided, and in the illustrated embodiment, the tip of the left holding press block 14,
That is, it is provided on the line of the groove 26 provided on the slide table 10 facing the surface holding the band on the supply end side and in the thickness direction of the slide table 10 facing the pressing surface of the middle press block 13. Then, the small holes 11 are provided on the lower surface side of the slide table 10, that is, the press blocks 12, 13,
14 is formed in a truncated conical cross-section that expands in the plane direction facing the tip, and when each press block presses against the lower surface of the slide table 10 tip protrusion, the mud of the part passes through the small hole 11 and rises upward. And the mud above the slide table 10 is unlikely to fall down. A left bandway 31 and a right bandway 32 guide the band to the outside of the main body, and guide the band that has wrapped around the packaged object W below the slide table 10. In addition, the slide table 10 of the present invention has a mechanism such as band gripping, welding, cutting, or the like, a horizontal baling machine located on the side surface of the article W to be packed, an inverted baling machine located above, or a band guide arch on the main body. The present invention is also applicable to fully automatic and semi-automatic baler having no band guide arch. Next, the operation of the present embodiment will be described. FIGS. 3 (A) to 3 (C) show an outline of the packing process, in which lawn and vegetables to which mud is adhered are placed on the main body of the packing machine. When the article W is placed, the wet mud of the article W to be packed falls on the left and right bandways 31 and 32 or a band guide arch (not shown). Mud adheres to the tip of the band running
The mud is collected by the stopper 17 of the band guide 16 below the slide table 10, or the dried mud of the article to be packed W falls on the band 8 passing below the slide table 10. As shown in FIG. 3 (A), the band is wrapped around the article to be packed W, the tip of the band is reached to the stopper 17 of the band guide 16 below the slide table 10, and the start switch of the packing machine is operated by the timer, or When the limit SW is actuated by applying the band tip to a striker (not shown) near the stopper, the drive motor rotates, and the camshaft 15 rotates via the speed reducer. Due to the rotation of the cam shaft 16, the right pressing press block 12 is pushed upward, and the band front end side is gripped between the front end of the right pressing press block 12 and the slide table 10. At this time, the mud on the band located at the tip of the right holding press block 12 passes through the small hole 11 in the direction of the small hole 11 as shown in FIG.
Is pushed up to the upper surface. Next, the band guide 16 slides and retreats due to the rotation of the cam shaft 15, and the band is pulled back from the band supply end side by a pair of reverse rotation rollers (not shown) and tightened. When the tightening force is tightened to the set tightening force, the cam shaft 15 rotates again, and the left pressing press block 14 is pushed upward as shown in FIG. It is gripped by the substantially triangular groove 26 provided on the lower surface and the tip of the substantially triangular left holding press block 14 fitted into the groove. At this time, the mud under the groove 26 of the slide table 10 Alternatively, without being fixed to the lower surface, as shown in FIG. 2 (B), it passes through the small hole 11 and is pushed up to the upper surface of the slide table 10 as indicated by an arrow. Next, the heater crank 19
Is advanced by an unillustrated ridge, the heater 24 is inserted between the bands of the band overlapping portion formed by the band guide 16, and the opposing surfaces of both bands are melted by the vertical movement of the middle press block 13. Further, when the heater crank 19 is retracted by the rotation of the camshaft 15 and the heater 24 is pulled out of the band overlapping portion, the middle press block 13 rises and cuts the band between the right pressing press block 12 and the middle press block 13. Almost at the same time as slide table 10 and medium press block
The melted surface of the band overlapping portion is pressed between 13 to bond the band overlapping portion. At this time, the mud on the lower surface of the slide table 10 is pushed upward through the small holes 11, and
It is not fixed to the lower surface of the 10 tip protrusion. Next, as the cam shaft 15 rotates, each of the press blocks 12 to 14 descends, returns to the original position, the slide table frame 18 slides, and the slide table 10 retreats, so that the band is released from the slide table 10, The object to be packed W is packed. Immediately thereafter, the band guide 16 and the slide table frame 18 return to their original positions, and then the band from the band coil is moved out of the main body by a set length by a pair of feed rollers or through a pool box (not shown). It is sent to the guide arch and the packing process is completed.

【The invention's effect】

Since the present invention is configured as described above,
The following effects are obtained. Even when packing an object to be packed, such as lawn or vegetables, to which the mud has adhered, the mud is not fixed in the groove of the slide table, so that the mud is gripped by the press block pressing the band supply end side to the slide table. The band is bent so that the band supply end side is bent below the inserted heater, and the heater is inserted normally, thereby enabling normal packing operation. In addition, due to the small holes penetrating the slide table surface opposite to the pressing surface of the press block that presses the band tip side and the band overlap portion in each of the press blocks, mud on the lower surface of the slide table is not pressed by the press block. In addition, since it is pushed up above the slide table through the small holes, it is possible to carry out a normal packing operation without sticking to the lower surface of the slide table, and without causing a trouble such as preventing insertion of the heater. . Further, by making the slide table a frusto-conical section that expands in the plane direction facing each press block, when pressed by each press, mud under the slide table is pushed upward through small holes. This is effective because the mud above the slide table does not easily fall down.

[Brief description of the drawings]

FIG. 1 is a perspective view of a mechanism for gripping a band tip and a supply end, and performing band welding and cutting, on which a slide table according to the present invention is mounted. FIG. 2 (A) is a plan view of the slide table. FIG. 2B is an explanatory view of the operation of the slide table, FIG. 2C is a partial sectional view of a small hole having a truncated conical cross section, and FIGS. 3A, 3B, and 3C are packing steps. FIG. 4 (A) shows a normal state of a band overlapping portion in a conventional slide table, and FIG. 4 (B) shows a state of a defect under the influence of a fixed substance. 10: Slide table, 11: Small hole, 13: Medium press block,
14: Left press block, 16: Band guide, 26: Groove

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B65B 13/00-13/34 B65B 27/00-27/12

Claims (2)

(57) [Claims] 1. A packing machine having a mechanism for gripping a band tip side and a supply end side, bonding a band overlap portion, and cutting a band supply end between a slide table and a press block, respectively. The groove portion of the slide table formed so that the tip of the press block that grips the band supply end is fitted, the tip of the press block that grips the tip of the band, and the end of the press block that adheres the band overlapping portion respectively form the band. A slide table in a packing machine, wherein a plurality of small holes penetrating in a thickness direction of the slide table are formed at positions where the slide table is pressed. 2. The slide table according to claim 1, wherein the small hole has a truncated conical cross section that expands toward a surface of the slide table on which the press block presses the band.