JP3142665B2 - Full roll discharge device in on-machine cross doffer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contact winding type winding device, that is, a cloth roll is wound by placing a cross roll on a pair of front and rear rotating rollers at least one of which is a driving side and rotating the cross roll. More specifically, the present invention relates to a full roll discharge device for an on-machine cross doffer in a device, and more particularly to a change in the diameter of a full roll in discharging a full roll (a cross roll around which a woven fabric of a predetermined length is wound) by an extrusion mechanism in a loom. It relates to improvement of general-purpose functions.

[0002]

2. Description of the Related Art In a cross doffer of a loom in a contact take-up type take-up device, a full roll is discharged from a take-up device from a doffer onto a front stand, and then a new empty roll (woven cloth is wound). Is supplied to the winding device, the woven fabric is cut between the full roll and the empty roll, and the cut end of the woven fabric is wound around the empty roll. However, for various reasons, the predetermined length of the woven fabric, that is, the winding diameter of the full roll, may vary from lot to lot. The cross doffer is required to have a general-purpose function corresponding to such a change in the winding diameter of the full roll.

[0003] Japanese Patent Application Laid-Open No. Hei 4-3404 discloses a general-purpose function having a function to cope with a change in the winding diameter of a full roll.
A full-roll discharging mechanism (full-roll pushing mechanism according to the present invention) used in the full-roll discharging device described in No. 9 is known. In this full roll payout mechanism, a pair of left and right base plates pivotally supported at the lower end by a loom frame are driven to swing back and forth by an air cylinder. Each base plate is connected to a ring-shaped small-diameter roll dispensing arm and a large-diameter roll dispensing plate above the arm.

When discharging a full roll having a predetermined winding diameter, first, the base plate is swung forward, and the tip of the arm is brought into contact with the axial center of the full roll by the movement of the small-diameter roll dispensing arm. Is pushed forward and placed on the table. Next, after supplying the empty roll, the woven fabric is cut between the full roll and the empty roll, and thereafter, the base play is swung backward to return the full roll payout mechanism to the original position.

When discharging a full roll having a winding diameter larger than a predetermined diameter, the base plate is first swung forward, and a large-diameter roll dispensing plate that moves with the base plate is brought into contact with the axis of the full roll. Push the full roll forward and place it on the table. Next, after supplying the empty roll, the woven fabric is cut between the full roll and the empty roll, and thereafter, the base play is swung backward to return the full roll payout mechanism to the original position.

[0006]

In the prior art, the full roll payout mechanism is returned to the original position in both cases of a full roll having a predetermined diameter and a full roll having a winding diameter larger than the predetermined diameter. Previously, an empty roll was supplied to the winding device. This method is preferable from the viewpoint of minimizing the slack of the woven fabric connected to the loom from the cut end since the empty roll is supplied at the earlier timing and the woven fabric is cut earlier.

However, it is necessary to set the length of the small-diameter roll discharging arm so that the small-diameter roll discharging arm does not interfere with the empty roll newly supplied to the winding device when the full-roll discharging mechanism is returned. There is a drawback that small full rolls cannot be paid out.

An object of the present invention is to discharge a full roll of any winding diameter smoothly without interference with a newly supplied empty roll in discharging a full roll by an extrusion mechanism in a loom. .

[0009]

According to one aspect of the present invention, a pair of push-out mechanisms having the same structure and operating synchronously are provided on both sides of a contact-winding type winder. The main extrusion member has a shape capable of contacting a side core of a full roll having a winding diameter of a predetermined diameter or more when the main extrusion member advances, and the main extrusion member projects downward to protrude from the main extrusion member. A sub-extrusion member having a shape capable of contacting the side core of a full roll having a winding diameter of less than a predetermined value at the time of advancement is provided,
The gist of the present invention is that the sub-extrusion member is assembled to the main extrusion member so that when the sub-extrusion member is retracted, the sub-extrusion member is retracted upward by contact with an empty roll supplied on the winding device. According to another aspect of the present invention, a pair of push-out mechanisms having the same structure and operating synchronously with each other are provided on both sides of a contact-winding-type winding device. The extruding member is provided with a shape capable of contacting a side core of a full roll having a winding diameter of a predetermined diameter or more on a winding device when the extruding member is advanced and not being able to abut an empty roll when retracted, and The gist is that a lifting mechanism for moving the side core of the full roll on the winding device to a height position corresponding to the pushing mechanism when the roll is discharged is provided below the winding device.

[0010]

The main extruding member is involved in discharging a full roll having a predetermined diameter or more, and the sub-extruding member is involved in discharging a winding diameter smaller than a predetermined value. Does not substantially interfere with That is, the roller comes in contact with the empty roll but does not hinder the retreat.

[0011]

FIG. 1 shows an example of a discharge device according to the present invention, which is combined with a full roll lifting mechanism.

In the drawing, the winding device has rotating rollers 1 and 2 which are horizontally separated from each other, and is supported between a pair of loom frames 15. At least one of these rotating rollers 1 and 2 is, for example, a rear rotating roller 2.
Is the drive side. At the front of the loom, there is provided a table 3 on which the discharged full rolls are placed. In order to cut the woven cloth in the cross direction, a cutter 5 is movably mounted in the weave width direction. ing. A plurality of air jet nozzles are arranged between the cutter 5 and the front rotation roller 1 along the weaving width direction. The woven cloth C is wrapped by the front rotating roller 1 via the guide rollers 8, 7 and 6.
It is led to.

As described above, in this embodiment, the discharge device of the present invention is used in combination with a full roll lifting mechanism. The full roll lifting mechanism 20 is disposed below the pair of rotating rollers 1 and 2 and is shown in FIGS.
And a support shaft 23 rotatably mounted on the frame 15 and extending horizontally in the weave width direction as shown in FIG.
A pair of left and right Z-shaped lifting levers 22 fixed to each end of a support shaft 23 protruding from the frame 15, and a roller 24 supported at the rear end of each lifting lever 22. . Since the full roll B has a longer length than the pair of rotating rollers 1 and 2, the side core of the full roll B protrudes from the frame 15. Therefore, the roller 24 comes into contact with the lower surface of the side core of the full roll B during operation. One lifting lever 22 has its tip connected to the piston of the hydraulic cylinder 21. Most support shaft 23
May be fixedly mounted on the frame 15, and both lifting levers 22 may be pivotally supported by the support shaft 23, and each may be connected to the piston of the individual hydraulic cylinder 21.

In the lifting mechanism 20 constructed as described above, when the piston of the fluid pressure cylinder 21 advances, the lifting lever 22 swings counterclockwise in FIG. The full roll B on the rotary rollers 1 and 2 is lifted by contact with the core, and the full roll B moves upward and forward along the peripheral surface of the front rotary roller 1 and separates from the rear rotary roller 2.

A pair of push-out mechanisms 30, which are essential parts of the discharge device of the present invention, are arranged on both sides of the winding device and are operated synchronously by a known drive mechanism (not shown).
Since the pair of pushing mechanisms 30 have the same structure, only one of them will be described below.

The pushing mechanism 30 has a main pushing member 32 and a sub pushing member 34 as main components. The main pushing member 32 is fixedly installed on the rotating shaft 31 at the upper end. The rotating shaft 31 is rotatably mounted on the frame of the loom, and is rotationally driven by an appropriate drive source (not shown), whereby the main pushing member 32 swings back and forth. As shown in FIG. 4, the main pushing member 32 has an S-shaped shape, and a pair of guide walls 32a extending vertically.
Defines the shoot 33. This shoot 3
Reference numeral 3 is formed in such a size that the empty roll A can be rolled and dropped therein. A curved long groove 32b is formed in the upper part of the chute 33 so as to extend vertically through the bottom wall thereof. Further, a guide plate 32c that projects forward so as to be located on the side of the side core of the full roll B is attached to a lower portion of the main pushing member 32. The dimension and shape of the main pushing member 32 are set so that the lower part of the front guide wall 32a abuts on the side core of the full roll B (mounted on the rotating rollers 1 and 2) having a winding diameter of a predetermined diameter or more when swinging forward. , Is set.

At the position corresponding to the upper part of the main pushing member 32, a bracket 10 is mounted on the frame of the loom, and two pins 11 project horizontally from the bracket 10 toward the main pushing member 32. . These pins 11 are for placing an empty roll a thereon,
One of them is located forward of the main pushing member 32, and the other one passes through the long groove 32 b of the main pushing member 32.

Next, the auxiliary extrusion member 34 will be described with reference to FIGS. 1, 2 and 3. FIG. 2 shows the main pushing member 32 on the opposite side (that is, the near side) as compared with FIG. This sub-extrusion member 34 is the main extrusion member 32
Is attached to the outside of the lower part of the housing and protrudes downward. That is, this sub-extrusion member 34 is the main extrusion member 3
The second chute 33 is pivotally supported at the upper part by a pin 35 fixed to the outside of the bottom wall, and has an extruded plate 34a projecting inward at the lower part. The entire sub-extrusion member 34 is constantly urged rearward by an attached spring 36 and abuts against a stopper 37 fixed outside the bottom wall of the main extrusion member 32. The dimension and shape of the sub-extrusion member 34 are set so that the extruding plate 34a comes into contact with the side core of the full roll B having a winding diameter smaller than a predetermined diameter when the main extrusion member 32 swings forward. Note that the spring 36 may be omitted as necessary.

Next, the operation of the discharging device having such a configuration will be described. When the winding diameter of the full roll B is extremely smaller than a predetermined winding diameter, and when it is simply smaller than the predetermined winding diameter,
It is considered that the diameter is equal to or larger than a predetermined winding diameter.

First, the case of a full roll B having a winding diameter smaller than a predetermined diameter and extremely smaller than the predetermined winding diameter will be described.
In this case, the height of the center of the side core of the full roll B on the rotating rollers 1 and 2 is below the position corresponding to the sub-extrusion member 34. When the winding is completed, the piston of the hydraulic cylinder 21 of the lifting mechanism 20 advances, and the lifting lever 22
Swings about the support shaft 23 in the counterclockwise direction in FIG. 1, and the roller 24 at the rear end contacts the side core of the full roll B to push up the full roll B. As a result, the full roll B moves upward and forward along the peripheral surface of the front rotation roller 1 to a position facing the extrusion plate 34 a of the sub-extrusion member 34, and separates from the rear rotation roller 2.

At this timing, the above-mentioned driving mechanism is started, and the main pushing member 32 is driven to swing forward. Then, the extruding plate 34a of the sub-extrusion member 34 attached to the lower part of the main extrusion member 32 comes into contact with the side core of the full roll B. Since the auxiliary pushing member 34 is prevented from rotating counterclockwise by the stopper 37, the full roll B is moved toward the front table 3.

With the above-mentioned swing of the main pushing member 32,
The upper end of the front guide wall 32a moves upward, and the pin 1
The empty roll A supported by 1 is pushed backward. Then, the empty roll A is disengaged from the pin 11 and falls into the chute 33, and is guided by the bottom wall of the chute 33 and the front and rear guide walls 32 a to roll and fall in the chute 33. At this timing, the entire pushing mechanism 30 is in the forward position, and the chute 3
3 is a pair of rotating rollers 1 and 2 of the winding device.
Is located just above. Therefore, the empty roll A that has rolled and dropped in the chute 33 is stably mounted on the pair of rotating rollers 1 and 2.

When the empty roll A is supplied in this manner, the cutter 5 moves in the weaving width direction, and cuts the woven fabric between the full roll B and the empty roll A. Then air injection nozzle 4
Of air wraps the edge of the woven fabric around the empty roll A.

During this time, the main pushing member 32 is driven to swing rearward, and the whole pushing mechanism 30 attempts to return from the advanced position to the original position (retracted position). At this time, the sub-extrusion member 34 protruding below the main extrusion member 32 hits the newly supplied empty roll A on the rotating rollers 1 and 2. However, since the auxiliary pushing member 34 is elastically urged rearward by the spring 36 shown in FIG.
When the pin 35 receives a force directed forward due to contact with the pin 35, the pin 35 swings forward against the spring force. That is, it moves in a direction to escape from the empty roll A.

As a result, the sub-extrusion member 34 moves rearward while sliding along the upper peripheral surface of the empty roll A as the extrusion mechanism 30 moves rearward. Therefore, even if the empty roll A is placed on the rotating rollers 1 and 2,
The movement of the pushing mechanism 30 to the rear original position is smoothly performed without being hindered thereby.

Next, the case of the full roll B having a winding diameter smaller than a predetermined value will be described. In this case, the rotating roller 1
The side core of the full roll B on 2 is located at a position corresponding to the sub-extrusion member 34. Therefore, when the main pushing member 32 swings forward, the auxiliary pushing member 34 hits the side core of the full roll B and pushes the full roll B onto the front placing table 3. Thereafter, the operation of the sub-extrusion member 34 accompanying the supply of a new empty roll A and the swinging of the main extrusion member 32 rearward is the same as the case of the full roll B having a diameter smaller than the predetermined winding diameter. Lifting mechanism 20
Operates to raise the roller 24 regardless of the winding diameter of the full roll B when the full roll B is extruded.
When the winding diameter is simply less than a predetermined value, the raised roller 24 does not come into contact with the side core because the side core is at a high position. When the full roll B has a winding diameter smaller than a predetermined value, the operation of the lifting mechanism 20 is not always necessary.

Next, the case of a full roll B having a winding diameter equal to or larger than a predetermined value will be described. In this case, the side core of the full roll B on the rotating rollers 1 and 2 is the front guide wall 3 of the main extrusion member 32.
It is at a position corresponding to the lower part of 2a. Therefore, when the main pushing member 32 swings forward, the guide wall 32a hits the side core of the full roll B, and pushes the full roll B onto the table 3 in front. Thereafter, the operation of the sub-extrusion member 34 accompanying the supply of a new empty roll A and the swinging of the main extrusion member 32 rearward is the same as the case of the full roll B having a diameter smaller than the predetermined winding diameter.

In the above example, the roller 24 of the lifting mechanism 20 is brought into contact with the side core of the full roll B. In this way, the height of the side core when lifted does not depend on the winding diameter of the full roll B. That is, the lifting mechanism 20 can be operated irrespective of the size of the winding diameter of the full roll B. When the winding diameter is large, the roller 24 does not simply come into contact with the side core.

However, the roller 24 of the lifting mechanism 20 can be brought into contact with the peripheral surface of the full roll B. In this case, the height of the side core when lifted depends on the winding diameter of the full roll B. Therefore, full roll B
It is necessary to set the operation amount and dimensions of the lifting mechanism 20 so that the extrusion can be performed irrespective of the winding diameter. In the above embodiment, the main pushing member 32 is configured to swing by a rotation shaft provided above the main pushing member 32. However, it may be configured to swing by a rotation shaft provided below the main pushing member 32.

Now, in the embodiment of FIGS. 1 to 5,
Both the main extrusion member and the sub-extrusion member perform a predetermined function by swinging. However, FIG.
As in the embodiment shown in FIG. 7, the main and sub-extrusion members may be configured to perform a predetermined function by linearly moving together.

The pushing mechanism 40 is mounted on a hydraulic cylinder 41 fixed to the loom frame, a main pushing member 42 fixed to the end of the horizontal piston and extending vertically, and attached to the main pushing member 42 projecting downward. And the sub-extrusion member 44 provided. This auxiliary extrusion member 4
The lower end 4 has an inclined portion 44a extending upward and downward and projecting rearward and upward from the lower end thereof protruding downward from the main pushing member 42. However, instead of the inclined portion, the lower end of the sub-extrusion member 44 may have a round shape. The upper portion of the sub-extrusion member 44 is received in a shaft hole 42a formed in the lower portion of the main extrusion member 42, and is elastically pressed downward by a spring 43 provided in the shaft hole.

When the piston of the fluid pressure cylinder 41 advances, either the main extrusion member 42 or the sub-extrusion member 44 hits the side core of the full roll B (according to the winding diameter of the full roll B), and the full roll B And push it forward to discharge. Thereafter, the empty roll A is supplied onto the rotating rollers 1 and 2 by an appropriate supply mechanism (not shown). When the extruding mechanism 40 returns from the advanced position to the rear, the auxiliary extruding member 44 hits the empty roll A on the rotating roller. However, since the sub-extruding member 44 has the inclined portion 44a, it retreats into the shaft hole 42a of the main extruding member 42 against the spring force with the retraction of the extruding mechanism 40. That is, it moves in a direction to escape from the empty roll A.

As a result, the sub-extrusion member 44 moves upward while sliding along the upper peripheral surface of the empty roll A as the extrusion mechanism 40 moves rearward. Therefore, even if the empty roll A is placed on the rotating rollers 1 and 2,
The movement of the pushing mechanism 40 to the rear original position is smoothly performed without being hindered thereby.

Although the lifting mechanism is not used in the embodiments shown in FIGS. 6 and 7, it is needless to say that the lifting mechanism can be used in combination with the lifting mechanism depending on the winding diameter of the full roll B.

Further, by using together with the lifting mechanism,
In the above-described extrusion mechanism 40, the sub-extrusion member 44 can be omitted. That is, in this case, the main pushing member 42 is extended downward to such an extent that it does not interfere with the newly supplied empty roll A, and the side core of the full roll B having a small winding diameter is fully filled to a position facing the main pushing member 42. Roll B is lifted.

Further, in order to guide the woven fabric unwound from the empty roll A and the front rotating roller 1 toward the rear rotating roller 2 below the empty roll A when the end of the woven fabric is wound around the empty roll, A guide plate provided between 1 and 2 can be used for this lifting work.

That is, such a guide plate is normally supported by a woven cloth guide roller provided below the rotating roller, and guides an arc along the lower peripheral surface of the empty roll A placed on the rotating rollers 1 and 2. Forming a surface. However, instead of a configuration in which the guide plate 52 is fixedly supported by the woven fabric guide roller, as shown in FIG. 8, the guide plate 52 may be supported by the tip of a vertical piston of the fluid pressure cylinder 51 fixed to the loom frame. By the advance of the piston, the side core of the full roll B moves to a height position facing the pushing member 53 (main pushing member or sub pushing member).

In the above embodiment, the sub-extrusion member is assembled to the main extrusion member such that the sub-extrusion member is retracted upward by contact with the empty roll when the main extrusion member is retracted. However, the auxiliary extrusion member may be assembled to the main extrusion member such that the auxiliary extrusion member is positively retracted upward by a driving member such as a fluid pressure cylinder.

One example of such an extrusion mechanism is shown in FIGS.
1 will be described. In the extrusion mechanism 60, a sub-extrusion member 64 is attached to a rear surface of each main extrusion member 62. Two elongated holes 65 extending vertically are formed in series in the sub-extruding member 64, and a guide pin 66 whose tip is screwed to the main extruding member 62 is inserted into each elongated hole 65. . Further, the auxiliary pushing member 64 includes the guide pin 6.
The head of No. 6 is in a retaining state. Therefore, the sub-extrusion member 64 can move only up and down with respect to the main extrusion member 62. An L-shaped stay 67 is provided on the guide plate 62c.
A crank-shaped rotation lever 70 is provided rotatably via the. One end of the rotating lever 70 is connected to the sub-extrusion member 64.
A pin is fitted to and connected to a horizontal elongated hole 68 formed at the upper portion of the cylinder, and the other end is rotatably connected to a cylinder rod of a fluid pressure cylinder 72 suspended from a guide plate 62c. One end of the rotating lever 70 faces the sub-extrusion member 64 through the elongated hole 74.

When a hydraulic cylinder (not shown) is operated, the main pushing member 62 and the sub pushing member 64 advance together. At this time, the cylinder rod of the fluid pressure cylinder 72 is retracted, and the sub-extrusion member 64 is located below via the rotating lever 70. Extrusion member is full roll B
And push the full roll forward.

Next, the empty roll A is supplied onto the rotating roller. When the pushing mechanism is moved forward most, the hydraulic cylinder 72 advances the cylinder rod to move the auxiliary pushing member 64 upward. Thereafter, the extruding mechanism retreats, but since the sub-extrusion member 64 has already retreated upward, it can return to the original position without interfering with the empty roll A. The subsequent downward movement of the sub-extrusion member 64 may be immediately after returning to the original position, or may be performed when a next full-roll extrusion instruction is received.

[0042]

As described above, even when the full roll has a small winding diameter, the sub-extrusion member abuts against the side core of the full roll, and the full roll can be pushed forward and discharged. Moreover, the discharge operation can be performed without interference between the sub-extrusion member and the newly supplied empty roll. That is, before the main extrusion member returns from the advanced position to the original position, the next empty roll is supplied onto a pair of rotating rollers of the winding device, and when the main extrusion member is retracted, the sub-extrusion member contacts the empty roll and moves upward. Or the sub-extrusion member is retracted upward by the moving member when the main extrusion member is retracted, so that there is no substantial interference resistance.

Further, by using a lifting mechanism in place of the sub-extrusion member, it is possible to extrude a full roll having a small winding diameter by the main extrusion member. Further, if the auxiliary extrusion member and the lifting mechanism are used together, a full roll having a smaller winding diameter can be extruded.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing an example of a discharge device of the present invention.

FIG. 2 is a side view showing a sub-extrusion member used for the extrusion mechanism.

FIG. 3 is a partially sectional front view of the same.

FIG. 4 is a perspective view showing a main part of the pushing mechanism.

FIG. 5 is a perspective view showing a full roll lifting mechanism.

FIG. 6 is a partial sectional side view showing another example of the pushing mechanism.

FIG. 7 is a partially sectional side view showing the operation of another example of the pushing mechanism.

FIG. 8 is a side view showing another example of the lifting mechanism.

FIG. 9 is a sectional view showing another example of the pushing mechanism.

FIG. 10 is a sectional view showing another example of the pushing mechanism.

FIG. 11 is a sectional view showing a part thereof.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 rotating roller 2 rotating roller 3 table 4 air jet nozzle 5 cutter 10 bracket 11 pin 20 lifting mechanism 22 lifting lever 30 extrusion mechanism 32 main extrusion member 33 chute 34 sub extrusion member 40 extrusion mechanism 42 main extrusion member 43 main extrusion member 60 Extrusion mechanism 62 Main extrusion member 64 Sub extrusion member

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65H 67/04 D03D 49/20

Claims (7)

(57) [Claims] 1. A pair of push-out mechanisms having the same structure and operating synchronously are provided on both sides of a contact-winding-type winding device, and each push-out mechanism has a main push-out member provided so as to be movable back and forth. The main extrusion member has a shape capable of contacting the side core of a full roll having a predetermined diameter or more when the main extrusion member is advanced. A sub-extrusion member having a shape capable of contacting the side core of the full roll having a winding diameter of less than a predetermined value when the member is advanced is provided, and the sub-extrusion member falls onto the winding device when the main extrusion member retreats. A full roll discharge device in an on-machine cross doffer, wherein the full roll discharge device is attached to a main extrusion member so as to retreat upward by contact with an empty roll. 2. A pair of push-out mechanisms which are synchronously operated with the same structure are provided on both sides of a contact take-up type winding device, and each push-out mechanism has a main push-out member provided so as to be movable back and forth. The main extrusion member has a shape capable of contacting the side core of a full roll having a predetermined diameter or more when the main extrusion member is advanced. A sub-extrusion member having a shape capable of contacting the side core of the full roll having a winding diameter of less than a predetermined value when the member is advanced is provided, and the sub-extrusion member falls onto the winding device when the main extrusion member retreats. The lifting mechanism, which is assembled to the main extrusion member so as to retreat upward by contact with the empty roll, and moves the side core of the full roll on the winding device to a height position corresponding to the extrusion mechanism, has a winding mechanism. It is provided below the collecting device Full roll discharge device in on-machine cross doffer. 3. The apparatus according to claim 1, wherein the main extrusion member and the sub-extrusion member swing together. 4. The apparatus according to claim 1, wherein both the main extrusion member and the sub extrusion member move linearly. 5. The apparatus according to claim 1, wherein the sub-extrusion member is spring-biased with respect to the main extrusion member. 6. A pair of push-out mechanisms which are synchronously operated with the same structure are provided on both sides of a contact take-up type winding device, and each push-out mechanism has an extruding member provided so as to be able to move back and forth. and, the extrusion member at the time of its advanced, winding
Winding together have <br/> shape which can not contact the empty roll at the time of retreat, and the time of ejection of the full roll get in contact with the side core of the full roll of a predetermined or more winding diameter which is on the take device A full roll discharge device in an on-machine cross doffer, wherein a lifting mechanism for moving a side core of a full roll on a take-up device to a height position corresponding to an extrusion mechanism is provided below the take-up device. 7. A pair of push-out mechanisms which are synchronously operated with the same structure are provided on both sides of a contact take-up type winding device, and each push-out mechanism has a main push-out member provided so as to be movable back and forth. The main extrusion member has a shape capable of contacting the side core of a full roll having a predetermined diameter or more when the main extrusion member is advanced. A sub-extrusion member having a shape capable of contacting the side core of the full roll having a winding diameter of less than a predetermined diameter when the member is advanced is provided, and the sub-extrusion member is vertically movably attached to the main extrusion member by a driving member. A full roll discharge device in an on-machine cross doffer, characterized in that: