JPH0343003A - Device for preparing tape seedling - Google Patents

Abstract

PURPOSE:To prevent seedlings in a widened state from being attached to a tape by providing a means for narrowing seedling retaining intervals of a retaining tool at places for attaching and acting seedling by an attaching mechanism. CONSTITUTION:A pair of fixing crawls 17a and 17b are installed at proper intervals in chains 16 and 16 arranged on both sides in width direction of a tape 2 and a crop seedling bundle (a) is fixed and retained. Seedling retaining intervals of fixing crawls 17a and 17b are widened at places for charging and dropping the seedling bundles and made narrow at places for attaching and acting the seedlings to attach the seedling to tape 2 in a state bundling the seedlings.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to a tape seedling making device for strawberry, rye, etc., in which bundles of crop seedlings are arranged at predetermined intervals along the longitudinal direction of the tape. The bundle of crop seedlings is fixed to the surface of the tape by an attachment mechanism that moves relatively along the longitudinal direction of the tape while being held in place by holding tools disposed on both sides of the tape in the width direction. The present invention relates to a tape seedling creation device configured to be attached.

[Conventional technology]

Conventionally, in the above-mentioned tape seedling making device, as disclosed in, for example, Japanese Utility Model Application Publication No. 117810/1983,
The seedling holder has a structure in which the seedling holding interval is always constant.

[Problem to be solved by the invention]

However, in the structure of the above-mentioned example, if the holding interval is set large in order to improve workability when feeding seedlings into the seedling holder, the attaching mechanism may be used, for example, to hold the seedlings with tape. When pasting the tape, there is a risk that the seedlings will spread out in the longitudinal direction of the tape. Then, when the tape seedlings are transplanted using a separate dedicated transplanter, the seedlings are supplied in a scattered state when the adhesive tape is peeled off and the seedlings are removed, making it impossible to perform stable transplants. occurs.

Furthermore, if the holding interval is narrowed in advance in order to solve the above-mentioned problem, it becomes difficult to perform the work of feeding and supplying seedlings, resulting in a drawback that work efficiency is reduced.

The object of the present invention is to prevent seedlings from being attached to the tape in a spread state through simple structural improvements without reducing work efficiency.

[Means to solve the problem]

A feature of the present invention is that the tape seedling making device described at the beginning is provided with means for narrowing the seedling holding interval of the holder at the location where the seedling attaching action is performed by the attaching mechanism, and its functions and effects are as follows. That's right.

[For production]

That is, at the point where the bundle of crop seedlings is fed into the holder, the seedling holding interval of the holder is wide, and at the point where the seedlings are attached to the tape, the interval is narrowed.

[Effects of the invention] As a result, although the work of feeding and supplying crop seedling bundles can be easily performed, the seedling bundles are not attached to the tape in an expanded state, and therefore, there is no reduction in work efficiency. , it became possible to transplant seedlings smoothly without any problems.

〔Example〕

The tape seedling creation device will be explained. As shown in Fig. 1, a large bundle of rushes as a crop seedling bundle (a) is manually divided into small bundles, and the culms are placed on a pair of left and right conveying devices (1) in the width direction of the conveying device (1). In addition to supplying it by dropping it with the body parallel to the body, a pair of left and right conveying devices (1), (1)
A tape (2) that is located between the feed rolls (3) and moves while supporting the crop seedling bundle (a) is fed out from the feeding roll (3), and the crop seedlings are moved by the conveying devices (1), (1) and the tape (2). While conveying the bundle (a), the crop seedling bundle (a) placed on the tape (2) on the lower side of the terminal end of the conveying device (1) is transferred to the tape (2).
) is an example of an attached mechanism that sews to the sewing machine (4).
), and a guide table (5) for placing and guiding the tape seedlings to be sewn from the end of the conveyance device (1), and a guide table (5) for guiding the tape seedlings downward at a position away from the conveyance device (1). Upper and lower pairs of second drive rolls (6a), (6
b) A seedling storage case (7) is provided for storing the tape seedlings to be hung down in a vertically zigzag manner.

The sewing mechanism (4) will be explained below. Sewing needles (8), (8) that use a single sewing thread and move up and down to insert this sewing thread into the tape (2), and this vertical moving needle (8)
), (8) causes the thread (
a rotating arm (10) that forms a ring by hooking the (9);
10), and a new thread (9) formed by the next vertical movement of the vertical movement needle (8) - times is inserted into the loop of the previous thread (9) made by this rotating arm (lO). ), and the new thread (9) is held by the rotating arm (10), while the mechanism (4)
). The sewing threads (9) are arranged in two rows on the left and right to stabilize the attitude of the crop seedling bundle (a) attached to the tape (2).

On the other hand, in the seedling storage case (7), the seedling storage case (7)
) The hanging position of the tape seedlings is continuously changed by means of a guide roll (11) that moves from side to side above the taped seedlings, so that the tapeed seedlings are stored in a zigzag state.

As shown in FIG. 1, this guide roll (11) is fixed to the tip of a support arm (13) fixed to one link of a rotating chain (12) driven in a vertical manner.
This support arm (13) is bent into an L-shape when viewed from the side, and its tip is positioned on a line connecting the left-right reversal center of the rotation chain (12).
) also in a certain direction, it reciprocates on a line connecting the left/right inversion center. The tape seedlings are folded into a zigzag pattern by the guide rolls (11) that reciprocate from side to side in this way.

Each of the transport devices (1) and (1) will be explained.

Each of the conveying devices (1), (1) is arranged along the longitudinal direction of the tape (2) on both lateral sides in the width direction of the tape (2),
Drive sprocket (14) and driven sprocket (15)
) is constructed by winding an endless rotating chain (16), (16). A pair of locking claws (17a) and (17b) are attached to the chain (16) at appropriate intervals as a holding device for engaging and holding the crop seedling bundle (a), and the locking claws (17a) The seedling holding interval in (17b) is configured to widen at the location where the seedling bundle is introduced and dropped, and the sewing mechanism (4) narrows at the location where the sewing mechanism (4) acts. To be more specific, one of the locking claws (17b) is fixed to the chain (16) in a state extending diagonally upward, and the other locking claw (17a) is fixed so that its distal end side is connected to the locking claw ( 17b), and is pivoted to the chain (16) so as to be swingable around the horizontal axis (P) in a state of extending diagonally upward on the opposite side. Further, the swingable locking pawl (17a) extends inward of the chain from the pivot point, and is magnetized so that its tip end becomes an S pole and its inner end becomes an N pole. and,
An electromagnet (18) magnetized so that the part facing the chain (16) is the S pole is installed on the lower side of the chain (16) at the seedling insertion point, and the sewing is done on the lower side of the chain (16) at the action point. is equipped with an electromagnet (19) magnetized so that the part facing the chain (16) becomes the north pole.

With this configuration, the locking claw (1
The inner side of 7b) is repelled by the homopolar magnetism, and the tip side swings in the direction of expansion, making it easier to perform the loading operation.

Then, the sewing machine receives an attractive force due to magnetism of different polarities at certain points, and swings in the direction of narrowing the seedling holding interval. The electromagnet (19) constitutes means for narrowing the seedling holding interval. As a result, the seedlings are sewn onto the tape (2) in a bundle without spreading.

Incidentally, at the end of the conveyance path of the conveyance devices (1), (1), seedlings are held by locking claws (17a) as the chain (16) rotates.

(17b), a peeling plate (20) is swingably provided to lift and guide the peeling plate (20) upward.
is configured to be engaged and swung by pawls (22) formed on the drive sprocket (14).

[Another example]

The means for narrowing the seedling holding interval may be configured as follows.

■ As shown in Figure 2, the movable seedling locking device on the side of the stem tip, which is particularly prone to spreading, is configured with only a fixed locking claw (17a), and the sewing is fixed at a location on the side of the stem tip of the seedling. A regulating member (23) made of an elastic body is provided as a means for narrowing the holding interval by engaging with the retaining claw (17a), and after sewing, the regulating member (23) is elastically retracted to allow the passage of the seedling. It is composed. Further, a sensor (24) for detecting the presence of a conveyed color is provided at a portion during conveyance, and the conveyance device (1) (1) is configured to be stopped when a plant is missing.

■ As shown in Figure 3, when sewing seedlings,
a pair of opening/closing claws (25) that are swingable to switch between an open state in a substantially horizontal position in a fixed position and a closed state in an upright position at narrow intervals;
The electromagnetic solenoid (25) is arranged to be opened and closed by an electromagnetic solenoid (26), and the electromagnetic solenoid (2
6) is configured to be driven to the closed state.

■ As shown in Fig. 4, the swing type locking claw (17b)
is bent into a dogleg shape at its pivot point (P), and
The tip side is made heavier and the lower end is equipped with a guide roller (27).
I support this. Then, a guide member (28) on which the guide roller (27) rides is provided on the lower side of the chain (16) at the sewing point, and the tip part expands under its own weight at the seedling insertion point, and the sewing is done at the point. Now, the guide member (
2B) is configured to narrow the seedling holding interval.

■ As shown in Fig. 5, the sewing mechanism (4) is replaced by an attaching mechanism (4) using adhesive tape (29), and the chain-type conveyance device (1) is replaced by an attaching mechanism (4).
Seedling holder (17a) at a constant pitch with wide intervals,
An endless belt (31) with an attached belt (17b) is used. Then, as shown in Fig. 5, an endless belt (31)
A narrowing member (33) that acts on the held seedlings by a spring (32) is swingably attached to the side of the tape attachment point. In other words, the seedling acting portion (33a) is bent into a semicircular arc shape so that the seedlings are squeezed by the biasing force of the spring (32) and the holding interval is narrowed.

Note that the guide roller (27) is located at the lower end of the narrowing member (33).
), and a restraining member (34) is provided at the seedling input point and at the end in the conveyance direction to release the seedling narrowing of the seedling action section (33a).

(2) As shown in FIGS. 6 and 7, in place of the narrowing biasing spring (32) in the embodiment described in item 4 above, a narrowing operation restraining member (35) is provided, and the restraining member (35) is provided.
A switch (36) on which the guide roller (27) acts is provided between the narrowing release restraining member (34) and the narrowing down member (33) when the switch (36) is operated. It is equipped with an electromagnetic solenoid (37)-driven foot-sweeping arm (38) that changes the posture of the robot.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

The drawings show an embodiment of the tape seedling making device according to the present invention,
Fig. 1 is a side view, Fig. 2 is a perspective view of another embodiment (2), Fig. 3 is a side view of the main part of another embodiment (2), Fig. 4 is a side view of the main part of another embodiment (2), and Fig. 5 is a side view of the main part of another embodiment (2). 6 is a side view of a main part of another embodiment (2), FIG. 7 is a side view of a main part of another embodiment (2), and FIG. 7 is a plan view of a main part of another embodiment (2). (2)...Tape, (4)...Additional mechanism, (17a), (17b)...Holder.

Claims (1)

[Claims] Bunches of crop seedlings arranged at predetermined intervals along the longitudinal direction of the tape (2) are held by holding tools (17a) and (17b) arranged on both sides of the tape (2) in the width direction. In this state, the bundle of crop seedlings is attached to the tape (2) by an attached mechanism (4) that moves relatively along the longitudinal direction of the tape.
A tape seedling making device configured to be attached in a fixed state to the surface of the device, comprising means for narrowing the seedling holding interval of the holders (17a) and (17b) at a location where the attaching mechanism (4) acts to attach seedlings. Tape seedling making device.