JPH081000U - Resin strand transfer guide device - Google Patents

Abstract

(57) An object of the present invention is to provide a transfer guide device for resin strands in which the prevention of fusion of discharge rows is prioritized to the prevention of fusion of strands in the discharge row. SOLUTION: A cooling water supply port 23 is provided immediately in front of a conveyor belt portion, and each discharge hole row 3 is provided below the die head 1.
Each strand group 50A, 50B discharged from A, 3B
The separator 15 is provided to separate the separators from each other, and the conveyance path of the conveyor belt includes a straight portion and a curved portion that follows the straight portion. The surfaces of the pair of conveyor belts facing each other are flat surfaces.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention comprises a transfer guide device for resin strands, in particular, a die head having a plurality of discharge holes for discharging a thermoplastic resin formed on the bottom surface thereof, and the discharge holes are arranged in two rows. The present invention relates to a transfer guide device for resin strands, which conveys a large number of discharged strands while sandwiching them between a pair of conveyor belts and cooling and solidifying them by a cooling means during the conveyance.

[0002]

[Prior art]

 Conventional strands are thermoplastic resin discharged from a die head in a string shape.Many strands are arranged in a line, cooled and solidified by an appropriate means, guided to a cutting machine, cut into chips, and Chips are used as a raw material for synthetic fibers and synthetic resin products. By the way, in the resin-strand transfer guide device that guides the strands discharged from the die head to the cutting machine while being cooled and solidified, it is desired from the viewpoint of profitability to discharge a large number of strands from the die head. Therefore, in the conventional example, a large number of discharge holes are arranged in two rows in a zigzag pattern on the lower surface of the die head, and the strands discharged from the discharge holes are sandwiched between a pair of conveyor belts and conveyed. The strands are cooled and solidified by cooling with a suitable cooling means.

[0003]

[Problems to be solved by the device]

 In the conventional strands described above, the strand immediately after being discharged from the die head is soft and sticky, so that the strand group from one discharge hole row and the other discharge hole may be formed before being guided from the die head to the conveyor belt. There is a problem that the strands from the row come into contact with and stick to each other, which results in non-uniform chips. In addition, even when sandwiched between transport belts and transported, there is a problem that until the strand is cooled, the strands come into contact with each other and stick to each other, resulting in non-uniform chips. .

The present invention solves the problems of the above-described conventional transfer guide device for resin strands, and prevents the fusion of the discharge rows from each other by prioritizing the fusion prevention of the strands in the discharge row. It is an object to provide a transfer guide device.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, a transfer guide device for a resin strand of the present invention comprises a die head having a plurality of discharge holes for discharging a thermoplastic resin formed on a bottom surface thereof, and the discharge holes are arranged in two rows. In a resin-strand transfer guide device that conveys a large number of strands discharged from these discharge holes together with cooling water by sandwiching them between a pair of conveyor belts and cooling and solidifying them, immediately before the conveyor belt section. A cooling water supply port is provided, and the transport path by the transport belt includes a straight portion and a curved portion subsequent to the straight portion, and the other end of the separator extends to the downstream side in the transport direction of the strand from the curved portion. The surfaces of the pair of conveyor belts facing each other are flat surfaces.

In the resin strand transfer guide device of the present invention having the above structure, each strand group discharged from each discharge hole row of the die head is guided between the conveyor belts in a state of being separated from each other by the separator. Further, it is sandwiched between one of the conveyor belts and the separator and between the other conveyor belt and the separator, and is transported by traveling of the conveyor belt. Therefore, the strands can be transferred between the facing strand groups without causing adhesion.

[0007]

[Embodiment of device]

 Hereinafter, an embodiment of a resin strand transfer guide device of the present invention will be described with reference to the drawings.

1 and 2 show an embodiment of the present invention, FIG. 1 is a vertical cross-sectional view showing the outline of the entire transfer guide apparatus for resin strands, and FIG. 2 is a partially enlarged view of FIG. . In this embodiment, in order to cool the strand 50, the water supply nozzle 30 is used instead of the cooling tank 4. The water supply nozzle 30 is disposed between the die head 1 and the pair of guide rolls 31 and has a function of ejecting cooling water to the strand groups 50A and 50B discharged from the die head 1. The pair of conveyor belts 32 in the fourth embodiment is wound around the pair of guide rolls 31 and the pair of guide rolls 33, and a direction changing roll 34 is provided in the middle of the strand conveying path. Has been. Therefore, the conveying path of the strands by the conveying belt pair 32 is the first straight portion A1 from the guide roll 31 to the direction changing roll 34, the curved portion A2 curved by the direction changing roll 34, and the direction changing. And a second straight portion A3 extending from the work roll 34 to the guide roll 33. A direction changing roll 35 is provided in association with the right side (lower side) conveyor belt of the conveyor belt pair 32, and by this direction changing roll 35, the return side portion of the right side (lower side) conveyor belt is provided. A change of direction is made. A tension adjusting roll 36 is provided in association with the left (upper) conveyor belt.

A separator 15 is provided between the pair of conveyor belts 32 as in the first to third embodiments. However, the other end of the separator 15 in this embodiment extends to the downstream side in the transport direction A from the curved portion A2 as shown in FIG. Therefore, when the strand 50 changes direction at the curved portion A2, a smooth direction change is performed.

Next, an outline of a transfer operation of the strand 50 according to the embodiment having the above-mentioned configuration will be described. The strand groups 50A and 50B discharged from the die head 1 are sandwiched between the conveyor belt pair 32 and are conveyed vertically downward from the start end of the conveyor belt pair 31 with the cooling water ejected from the water supply nozzle 30. Then, the direction is changed by the direction changing roll 34, and it is conveyed obliquely upward to the end of the conveying belt pair 32. During this conveyance, the strands 50 are cooled and solidified, and are guided to the subsequent cutting machine 39 and cut to form chips. In the figure, reference numeral 40 denotes a cooling water receiver, and the cooling water that accompanies the strands 50 is received by the cooling water receiver 40 and discharged to the outside through the discharge hole 41.

It should be noted that both surfaces of the separator 15 are normally flat surfaces because the conveying portion includes the waist bending portion, but as in the first embodiment of the first invention described above. The vertical groove 16 may be formed, or the vertical groove 20 may be formed as in the third embodiment.

[0012]

[Effect of device]

 According to the resin-strand transfer guide device of the present invention, by providing the separator, sufficient cooling water is further supplied before the strand group enters the conveyor belt, and the conveyor belt is immersed in the cooling tank. It is not necessary and the device is simplified, and the transport path by the transport belt includes a straight portion and a curved portion that follows the straight portion, and the other end of the separator is located downstream of the curved portion in the strand transport direction. By extending to the side, the cooling and conveying unit can be made compact while smoothly transferring the strand in the curved portion.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing the overall outline of an embodiment of a resin strand transfer guide device of the present invention.

FIG. 2 is a partially enlarged view of FIG.

[Explanation of Codes] 1 die head 1A bottom surface of die head 2 discharge holes 3A discharge hole row 3B discharge hole row 4 cooling tank 7 conveyor belt pair 8 conveyor belt pair 32 conveyor belt pair 15 separator 16 conveyor belt vertical groove 20 separator vertical groove 30 Water Supply Nozzle 50A Strand Group 50B Strand Group A Strand Transport Direction A1 Straight Part A2 Curved Part

Claims (1)

[Scope of utility model registration request] 1. A die head having a plurality of discharge holes for discharging a thermoplastic resin formed on a bottom surface thereof, wherein the discharge holes are two.
In a transfer guide device for resin strands, which is arranged in a row, and which cools and solidifies a large number of strands discharged from these discharge holes, together with cooling water, is sandwiched between a pair of conveyor belts to be cooled and solidified. Immediately before, a cooling water supply port is provided, and the transport path by the transport belt includes a linear portion and a curved portion that follows the linear portion, and the other end of the separator is downstream of the curved portion in the transport direction of the strand. A transfer guide device for resin strands, wherein the transfer guide device extends to the side, and the surfaces of the pair of conveyor belts facing each other are flat surfaces.