JPH0141729B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for replacing a bobbin in a warping device used in a weaving or knitting process, and more specifically, a method for replacing a bobbin in a warping device used in a weaving or knitting process. The present invention relates to a method for replacing a bobbin in a warping device, in which thread is pulled out from a stand in the direction of the bobbin axis, then bent in a substantially perpendicular direction by a creel, and taken to a warping machine, and a bobbin cart used in the method.

[Prior art]

Conventional warping apparatuses as described above include those with a fixed bobbin stand and those with a bobbin stand that is transportable. If the bobbin table is fixed, the warping machine will have to stop when replacing the peg bobbin, which increases downtime, and the bobbin replacement work must be done in a narrow space.
It is difficult to use a step stool or the like, and it takes a lot of effort and time to change the bobbin from a high peg to a low peg. If the bobbin stand is a bobbin type, the bobbin that runs out of thread can be replaced with a bobbin that has a thread winding bobbin installed in advance, so the downtime of the warping device can be shortened, and bobbins on the bobbin can be replaced easily. Since it can be carried out in a large area, labor and time can be relatively reduced, but on the other hand, there is a problem in that a large floor area must be taken up for storage of spare carts, etc.

In addition, in recent years, the trend towards large packages has progressed,
The weight of the thread winding bobbin has increased, and it has become difficult to replace the bobbin manually, not only in those with a fixed bobbin stand but also in those with a trolley type bobbin.
In order to solve this problem, systems for automatically replacing bobbins using devices such as robots have been developed. However, inserting and removing bobbins from horizontal pegs, especially inserting bobbins that are heavy and have different winding shapes and dimensions, requires extremely high accuracy from the exchanger. This makes it difficult to develop devices. In addition, with a fixed bobbin stand, in order to change the bobbin of hundreds of pegs, the changing device must move around the front side of the narrow pegs of the bobbin stand, so it can be adapted to the layout of the existing creel. It is extremely difficult to design a switching device that does this. In addition, if the bobbin stand is a trolley type, true automation cannot be achieved unless the means of transporting the trolley from the bobbin exchange place to the creel position is also automated. There are problems that make it difficult.

In addition to the above, the bobbin stand can be made into a magazine type,
Attempts have been made to increase the operating efficiency of the warping machine by making it a rotating type, but these methods also have the same problems as those with bobbin stands that use trolley types, and are difficult to adapt to the existing layout. There is a problem that it cannot be applied.

Therefore, in conventional warping apparatuses, the bobbin replacement work has mostly relied on manual labor.

[Purpose of the invention]

The present invention was made to solve the above-mentioned problems, and it is possible to shorten the down time of the warping machine, do not take up a large floor space, and can be easily applied to an existing layout. The present invention provides a bobbin replacement method for a warping device that can easily automate the replacement, and a bobbin cart used therein.

[Structure of the invention]

The present invention provides a warping device in which thread is pulled out in the direction of the bobbin axis from a bobbin table in which a large number of horizontal pegs for hanging a thread winding bobbin are mounted, and then the thread is bent in a substantially perpendicular direction by a creel and taken to a warping machine. The bobbin cart is a bobbin cart in which the pegs can be placed in a sideways upright state and upward in a lying position, and the bobbin cart is placed upright on the floor with a passageway under the floor through which the lying bobbin cart is transferred substantially parallel to the perpendicular direction. When replacing the bobbin of the bobbin cart, move the bobbin cart on the floor to one end that is off the floor in the opposite direction from the warping machine. The bobbin cart was brought to a flat surface and lowered to the same level as the floor surface using a lifting device, lowered onto the lifting device or by the lifting device, the bobbin cart was placed in a lying position, the bobbin of the bobbin cart in the lying position was replaced, and the bobbin was replaced. The bobbin cart is carried under the floor and placed on the lifting device at the other end that is off the floor on the warping machine side, the bobbin cart is placed in an upright position on the lifting device, and the bobbin cart in the upright position is moved from the lifting device to the floor. A bobbin exchange method for a warping device characterized by cyclic operation, and a bobbin cart for warping that is equipped with a number of pegs for hanging thread winding bobbins. The bobbin cart is characterized in that it can take a lying state.

In the method of the present invention, a bobbin cart in a lying position or a bobbin in an upright position has a thread winding bobbin installed under the floor or on one end of the floor in the opposite direction from the warper, or on the other end in the direction of the warper. Since spare carts can be prepared in advance, if warping is to be performed from one bobbin cart, even if the length above the floor is the same as that of the bobbin cart, warping may be performed from n bobbin carts. For example, by setting the length above the floor to 2n-1 times the length of the bobbin cart, bobbins can be replaced on the spare bobbin cart at one end that is off the floor even during warping. Therefore, the operating rate of the warping device can be as high as or even higher than that of the conventional bobbin stand of the bogie type. Furthermore, the floor area over which the bobbin cart moves is approximately the sum of the length on the floor and the length of two bobbin carts, and the width is approximately the width of the bobbin cart when it is lying flat, so it does not take up much floor space. Therefore, it is easy to apply to existing layouts. In addition, bobbin replacement at one end that is off the floor is done with the bobbin cart lying flat with the peg facing upward.
Even when replacing manually, it can be done from both sides at the same time, which makes the work easier than replacing pegs that are placed horizontally in a high or low position, but it is easier to use an automatic replacement device that replaces them all at once. You will be able to do it. Since the movement of the bobbin cart consists of linear movement on and under the floor and vertical movement at both ends off the floor, this can also be easily automated.

〔Example〕

The present invention will be explained below with reference to illustrated embodiments.

Fig. 1 is a schematic partial side view showing an example of a warping device implementing the present invention, Fig. 2 is a plan view, Fig. 3 is a rear view seen from the floor end side opposite to the warping machine, and Fig. 4 figure,
FIGS. 5 and 6 are partial rear views and side views of the creel truck used in the present invention, and FIGS. 7 and 8 are examples of elevating devices provided at both ends off the floor. 9th partial perspective view showing
10 are a schematic plan view and a side view showing an example of a plurality of parallel warping apparatuses implementing the present invention.

In the figure, a creel device 1 and a warper 2 are conventionally known devices.

The warping apparatus shown in FIGS. 1 to 3, 9, and 10 consists of a floor 4 between the left and right creels on which a bobbin cart 3 from which yarn is pulled out for warping is placed.
The bobbin cart 3 is constructed with a raised floor that serves as a passage for the bobbin cart 3 whose underfloor is laid down, and the bobbin cart 3 as shown in FIGS. 4 and 5 is used.

The bobbin cart 3 shown in FIG. 4 is in an upright state in which the peg 3a is placed horizontally and the thread can be pulled out for warping from the bobbin 5 attached thereto, and the hook lever 3b is removed from the latch 3c and held by the stopper 3d. Then, by opening both lower ends, peg 3a
is changed to an upward prostrate position. 3e and 3f
are the bobbin cart 3 in the upright state and the lying state, respectively.
It is a wheel that supports the The bobbin cart 3 in Fig. 5 is
The foot lever 3b is similar to the bobbin cart 3 in Fig. 4.
In addition to removing the wheels 3e', the connecting hooks 3h of the left and right lower end levers 3g to which the wheels 3e' are attached are removed, and by opening both lower ends, the standing state can be changed from a lying state to a lying state. The wheel 3e' also supports the bobbin cart 3 in the lying state by holding the lower end lever 3g with the stopper 3i, and is also provided with a wheel 3f' that supports the center portion of the bobbin cart 3 in the lying state. .

The bobbin cart 3 shown in FIG. 6 is a bobbin cart used in a warping device having a creel on only one side, and can be changed from an upright state to a lying state by falling on its side. Examples of using such a bobbin cart 3 are obvious from the examples of using the bobbin cart 3 shown in FIGS. 4 and 5, so
I won't explain any further about that.

On the floor 4 between the left and right creels of the creel device 1, an upright bobbin cart 3 with a bobbin 5 mounted on a peg 3a is placed, and thread is pulled out from the bobbin cart 3 to a creel for warping. . Lifting devices 6 and 7 as shown in FIGS. 7 and 8 are provided on the floor 4 on the warping machine 2 side and on both sides of the floor 4 on the opposite side.

In the lifting device shown in FIG. 7, the lifting table 9 is moved up and down by the forward and reverse rotation of the screw column 8 by a motor (not shown). Thus, the bobbin cart 3 can pass over the lifting table 9 which is lowered to the same level as the underfloor passage surface. Such a lifting device is different from those shown in Figs. 1 and 2 for reasons described later.
It is used in the lifting device 6 shown in the figure. In addition, in the lifting device shown in FIG. 7, a forward/reverse rotation motor 10 rotates a sprocket 11 and a sprocket 12 connected to the sprocket 11 by a chain through a deceleration means (not shown), and the sprockets 11 and 12 are integrally connected to each other. Crank arms 13 and 14 are provided, and the crank pins 15 and 16 of the crank arms 13 and 14 support the lifting table 9, so that the lifting table 9 can be moved from the same level as the floor 4 to the same level as the passage surface under the floor. It is intended to be raised and lowered until In such a lifting device, in order to stably support the lifting table 9, the shaft of the sprocket 11 extends to the opposite side of the lifting table 9 and similarly moves the crank arm on the opposite side. , it is not suitable for the lifting device 6 even if it is used in the lifting device 7 shown in FIG. The above-mentioned lifting device shown in FIG. 7 can also be used as the lifting device 7.

When replacing the bobbins on the bobbin cart 3 on the floor 4, move the bobbin cart 3 to the lifting device 6 on the opposite side of the warper 2, and remove the bobbin cart 3 before or after lowering it from the level of the floor 4 using the lifting device 6. 3 from the standing state to the lying state, replace the bobbin of the bobbin cart 3, and replace the bobbin cart 3 with the one shown in Fig. 4 or 5.
As shown in the figure, the bobbin cart 3 is moved through the underfloor passage to the lifting device 7 on the warping machine 2 side, and the bobbin cart 3 is moved to the level of the floor 4 by the lifting device 7 or after being raised to the level of the floor 4.
A cyclic operation is performed in which the bobbin cart 3 is changed from a lying state to an upright state, and the bobbin cart 3 in the upright state is moved onto the floor 4. In order to facilitate this cycle operation, a bobbin cart 3 is installed on the floor 4 as shown in FIG.
A traction device 17 and a guide rail 18 are provided, and the underfloor passage is also provided with a traction device and a guide rail (not shown). The traction device preferably has a simple structure, such as a rotary chain provided with a hook for the bobbin cart 3.
Further, in the illustrated warping device, hanging devices 19 and 20 for the bobbin cart 3 are also provided at the positions of the lifting devices 6 and 7, and the bobbin cart 3 is provided with a gripped portion 3j for hanging. It is being In addition, in the hanging device 19, the shaft of the chuck 19a that grips the gripped portion 3j of the bobbin cart 3 is connected to the plunger device 19b.
It moves up and down by the hanging device 2.
Although chuck 20a is provided on a cantilever beam 20c which is moved up and down by a lift device 20b, the same device can also be used for the hanging devices 19 and 20. The hanging device 19 holds the grasped portion 3j of the bobbin cart 3 in an upright state with a chuck 19a, and in this state, the bobbin cart 3 is lifted at both lower ends by removing the hook lever 3b and the connecting hooks 3h shown in FIGS. 4 and 5. The hanging device 20 is used to change the bobbin cart 3 from the upright state to the lying state by lowering the chuck 19a using the plunger device 19b. Part to be grasped 3
j and lift the cantilever 20c with the lift device 20b to bring the bobbin cart 3 into an upright state, and then fix the bobbin cart 3 in the upright state with the hook lever 3b and the coupling hook 3h. It is used to go from a prone position to a standing position.

FIGS. 1 and 2 show a warping device in which the length of the floor 4 has almost no margin for the three bobbin carts 3 to be warped, but in such a warping device, Three bobbin carts 3 with bobbins replaced in advance are placed under the floor in a lying state, or if a bobbin cart 3 with replaced bobbins is already mounted on the lifting device 7, two bobbin carts 3 are prepared and placed, and the bobbin carts 3 on the floor 4 are placed. 3 is lowered from the floor 4 in a prostrate state using the hanging device 19 and the lifting device 6, and the three cars from the top of the floor 4 are moved by moving at least the two that were lowered earlier to the right side of the lifting device 6. The bobbin cart 3 can be removed. Therefore, in advance, attach the thread winding bobbin 5 to the peg 3.
The three bobbin carts 3 set up on the bobbin carts 3 can be placed on the floor 4 in an upright state using the lifting device 7 and the hanging device 20, and the thread can be pulled out from the bobbin carts 3 for warping. Then, by replacing the bobbins of the bobbin cart 3 in the lying state on the lifting device 6 or in the retracted position on the right side of the lifting device 6 from the bobbin cart 3 on the lifting device 6 side and sequentially sending them into the underfloor passage, The time required for replacing the bobbin can be prevented from being included in the downtime of the warping device. The reason why the elevating devices 6 and 7 and the hanging devices 19 and 20 shown in FIGS. 2n of the length of the bobbin cart 3 for the number n of bobbin carts 3 that warp the length of
- If the ratio is 1 or more, the bobbin cart 3 does not have to be retracted to the right side of the lifting device 6, so the lifting device 6 and the hanging device 19 are the same as the lifting device 7 and the hanging device 20, respectively. It can be done. Even in the case of the warping apparatus shown in FIGS. 1 and 2, it is possible to use the same lifting device 6 and hanging device 19 as the lifting device 7 and hanging device 20, respectively.

In the warping apparatus shown in FIGS. 9 and 10, the length of the floor 4 is almost the same as the total length of the bobbin cart 3 to be warped, and the bobbin cart 3 unloaded from the floor 4 is placed on the right side of the lifting device 6. Although the bobbin cart 3 is not temporarily evacuated, in other words, the bobbin replacement time of the bobbin cart 3 is included in the warping machine's downtime, The downtime is shortened by automatically and quickly exchanging the bobbins of the bobbin cart 3 on the lifting device 6 using the exchanging device 21. In this warping device as well, the length of the floor 4 is determined by the bobbin cart 3 as described above.
If the length is 2n-1 times or more, the exchange device 21
Of course, it is possible to avoid including the bobbin replacement time due to the warping machine in the downtime of the warping device.

In the exchanging device 21, a bobbin carton 22 having an empty bobbin accommodating portion and a thread-wound bobbin arrangement portion is fed into the device, and a bobbin catcher 21a such as a feeding crane removes the empty bobbins from a bobbin cart lying flat on the lifting device 6. The bobbin is then grabbed and dropped into the empty bobbin storage section of the bobbin carton 22, and then the thread-wound bobbin is grabbed from the arrangement section and inserted into the upward peg of the bobbin cart.

In addition, the warping apparatus shown in FIGS. 9 and 10 moves the combination of the hanging device 19, the lifting device 6, and the changing device 21, and the combination of the hanging device 20 and the lifting device 7 by means of the transverse rail 23. The warping device is shared by a plurality of warping devices installed in parallel. In such a warping apparatus, after bobbin replacement on the bobbin cart 3 on the floor 4 is completed and the bobbin is stored in the underfloor passage, the hanging device, lifting device, etc. are moved.

In this example, in order to prevent bobbin replacement time from being included in the down time and to make the order of bobbin replacement in a plurality of warping machines arbitrary, the hanging device 20 on the warping machine 2 side is equipped with: The lift device used is a pantograph type lift device whose height is lower than the lowest end of the yarn guided to the warper 2 by the creel device 1. Otherwise, when moving the hanging device 20, it will get caught on the thread threaded through the creel device 1.
The movement must be carried out before the thread is threaded through the creel device 1. Therefore, it is not possible to tie the thread on the bobbin cart 3 to the end of the thread left in the creel device 1 and pass the thread through the thread during warping. The bobbin exchange must be performed from the warping device at the end so that the threads hanging on the creel device 1 are also removed, and the bobbin must be replaced in order from the warping device at the end so that the yarn hanging on the creel device 1 is removed. After replacing the bobbin, suspend the hanging device 2.
0 would have to take a large detour around the outside of the parallel warping devices and return to the first warping device. On the other hand, the hanging device 19 and the exchange device 21 are high in height and can be moved without any trouble.

〔Effect of the invention〕

According to the present invention, as detailed above, the downtime of the warping machine can be shortened, and since it does not take up floor space, it can be easily applied to an existing layout, and the bobbin can be easily replaced. , it can be easily automated and has many excellent effects.
In addition, in the present invention, the floor on which the bobbin cart for warping is placed may be made into a passageway by digging under the floor.

[Brief explanation of drawings]

Fig. 1 is a schematic partial side view showing an example of a warping device implementing the present invention, Fig. 2 is a plan view, Fig. 3 is a rear view seen from the floor end side opposite to the warping machine, and Fig. 4 figure,
FIGS. 5 and 6 are partial rear views and side views of the creel truck used in the present invention, and FIGS. 7 and 8 are examples of elevating devices provided at both ends off the floor. FIGS. 9 and 10 are a schematic plan view and a side view showing an example of a plurality of parallel warping apparatuses embodying the present invention. 1... Creel device, 2... Warping machine, 3... Bobbin cart, 4... Floor, 5... Thread winding bobbin, 6,
7... Lifting device, 17... Traction device, 18... Guide rail, 19, 20... Hanging device, 21...
... Exchange device, 22 ... Bobbin carton, 23 ...
Traverse rail.

Claims (1)

[Scope of Claims] 1. In a warping device in which thread is pulled out in the direction of the bobbin axis from a bobbin stand in which a number of horizontal pegs for hanging thread winding bobbins are installed, and then the thread is bent in a substantially perpendicular direction by a creel and taken to a warping machine. A bobbin truck is used in which the planted pegs can be placed in a sideways upright position and an upwardly lying position, and the bobbin truck in the lying position is placed under the floor as a passageway to be transferred approximately parallel to the perpendicular direction. A bobbin cart is placed on the bobbin cart and the yarn to be warped is pulled out from the bobbin of the bobbin cart. When replacing the bobbin of the bobbin cart, the bobbin cart on the floor is removed from the floor in the opposite direction from the warping machine. Carry it to one end and lower it to the same plane as the bottom surface of the floor using the lifting device, lower it on the lifting device or by the lifting device, then put the bobbin cart in a lying position, replace the bobbin of the bobbin cart in the lying state, and remove the bobbin. Carry the replaced bobbin cart under the floor and place it on the lifting device on the other end of the warping machine, which is off the floor.
A method for replacing a bobbin in a warping device, which comprises: raising a bobbin cart in an upright position on the lifting device, and performing a cyclic operation of moving the bobbin cart in an upright position from the lifting device to a floor. 2. A bobbin exchange method for a warping apparatus according to claim 1, wherein a bobbin cart is transported on the floor and under the floor by a conveying means. 3. A bobbin replacement method for a warping apparatus according to claim 1, wherein a bobbin cart hanging device is used to change the bobbin cart from an upright state to a lying state and vice versa. 4. A bobbin changing method for a warping device according to claim 1, wherein a bobbin changing device is used to change the bobbin of the bobbin truck. 5. A bobbin trolley for warping, which is equipped with a number of pegs for hanging thread winding bobbins, and is characterized in that it can be in an upright state with the pegs facing sideways and a lying state with the pegs facing upward.