TWI692397B - Extruder head for extruding cord-reinforced extrudate and method using extruder head for extruding cord-reinforced extrudate - Google Patents

Abstract

The invention relates to an extruder head for extruding cord reinforced extrudate, wherein the extruder head comprises a die and a cord guide, wherein the extruder head further comprises a first flow channel that extends along a first flow path through the extruder head at and debouches into the die from a first side of a cord plane and a second flow channel that extends along a second flow path through the extruder head at and debouches into the die from a second side of the cord plane, wherein the first flow path and the second flow path each comprise a supply section and a coat-hanger section, wherein the first flow path and the second flow path, in their respective coat-hanger sections, extend within a first range of eighty-five to ninety-five degrees with respect to the cord plane along at least seventy percent of the coat-hanger sections.

Description

Extrusion head for extruding the cord to strengthen the extrudate and use the extrusion head to squeeze Method for pressing out cord to strengthen extrudate

The invention relates to an extruding head; in particular, it refers to an extruding head used to extrude cords to strengthen extruded objects.

European Patent EP0339510A2 discloses an extruder head for manufacturing an elastic material, which is internally reinforced by relatively densely packed metal or textile cords. The extrusion head includes a mold composed of a top mold, a bottom mold and a cord guide member, wherein the cord guide includes a top plate and a bottom plate. The top and bottom parts of the mold and the cord guide are assembled together on the opposite side of the cord plane by an outer shell. The extruder head is provided with two conical, converging flow channels for supplying plastic elastic materials to the mold.

When the elastic material is supplied to the conical, converging flow channel in the extrusion head, pressure will be formed and pressure force will be applied to the peripheral wall of the flow channel. Most of the pressure force applied to the portion of the extrusion head in a direction perpendicular to the plane of the cord will cause the top and bottom parts of the mold, the top and bottom parts of the cord guide member, and/or the outer shell to move. Therefore, the relative positions of the components will become inaccurate. The accuracy of the position is very important for the top and bottom parts of the mold that determine the thickness of the elastic material. In addition, the curtain Inaccuracies in the position of the top and bottom parts of the guide may cause damage to the parts and/or incorrectly embed the cord into the elastic material.

An object of the present invention is to provide another extruder head for extruding cord-reinforced extrudates, which can reduce and/or avoid at least one of the aforementioned disadvantages. .

According to a first aspect, the present invention provides an extruder head for extruding cord reinforced extrudates. The extruder head includes a mold and a cord guide. The mold is used to receive the cord and the extruded material in a direction of the cord. The cord guide is used to guide the cord and are parallel to the cord direction. Enter the mold on a flat surface. The extrusion head further includes a first flow path and a second flow path. The first flow path extends through the extrusion head along a first flow path and is connected to the mold from a first side of the cord plane. The second flow channel extends through the extruder head along a second flow path, and is connected to the mold from a second side relative to the plane of the cord on the first side. The first flow path and the second flow path each include a supply area and a hanger area. The hanger area is downstream of the supply area and has a wide cross section. Wherein the first flow path and the second flow path are at least 70% of their respective hanger areas at an angle ranging from 85 to 95 degrees relative to the plane of the cord extend.

Because the hanger area is arranged in a steep, vertical or almost perpendicular to the plane of the cord, most of the pressure created in the flow channel can be avoided, and is directed to and/or generated in the mold in a direction perpendicular to the plane of the cord Opening. In particular, most of the pressure force can be directed through the peripheral wall of the hanger area to a direction that is parallel or substantially parallel to the plane of the cord. Therefore, the extruder head is less likely to be inaccurate on the normal or in a direction perpendicular to the plane of the cord. In particular, the accuracy of the thickness of the extrudate can be improved.

In an embodiment, the first flow path and the second flow path are in each hanger area up to the plane of the cord, and in at least 70% of each hanger area, the first flow path is relative to the plane of the cord An angle extends within a range. Therefore, the flow path from the junction to the mold can be set as steep as possible with respect to the plane of the cord.

In a preferred embodiment, the first range is from 88 to 92 degrees. Optimally, the first flow path and the second flow path extend perpendicular to the plane of the curtain in each of the hanger areas. The steeper the angle relative to the plane of the cord, the smaller the pressure force applied to the normal or perpendicular to the plane of the cord.

In another preferred embodiment, the first flow path and the second flow path are in at least eighty percent or preferably at least ninety percent of each hanger area, tied in the first position relative to the plane of the cord Extend within a range. Optimally, the first flow path and the second flow path extend in a first range relative to the plane of the curtain in all of the hanger areas. By ensuring that most of each hanger area extends within the first range, the pressure force can be applied in a direction parallel to the joint plane.

In an embodiment, the hanger area extends to the mold in a direction perpendicular or substantially perpendicular to the plane of the cord. Therefore, after leaving the hanger area, the extruded extruded material can be directly deflected into the mold, for example, by the front end of the cord guide, as described in detail later.

In an embodiment, the cord guide includes a front end that extends at least partially into the mold, wherein the front end has a first curved surface and a second curved surface, the first curved surface and the second curved surface are opposite to each other in the plane of the cord On the side, extending toward the mold in the direction of the curtain, wherein the hanger areas of the first flow channel and the second flow channel respectively extend to the first curved surface and the second curve in a direction perpendicular or substantially perpendicular to the plane of the curtain The surface, wherein the first curved surface and the second curved surface are used to respectively deflect the extruded material from the first flow channel and the second flow channel, and direct the extruded material toward and/or into the mold. Therefore, the cord guide is used In order to deflect the extruded material flowing out and make it enter the direction of the cord, any error of the cord guide relative to the housing can be absorbed without adversely affecting the accuracy of the extruder head in the height direction.

In one embodiment, the first curved surface and the second curved surface are tangent or substantially tangent to each of the hanger area and the plane of the cord. Therefore, the extruded extruded material can be smoothly deflected into the mold from the first flow channel and the second flow channel.

In one embodiment, the hanger areas of the first flow channel and the second flow channel each include a peripheral wall, wherein each flow channel of the extruder head includes a first hanger half side and a second hanger half side, the first hanger The half side and the second hanger half side are used to abut each other on opposite sides of the joining plane to form a peripheral wall of the first flow channel and the second flow channel. The peripheral wall of each hanger area is constituted by two parts relative to the joining plane and relative to each other, which can absorb the pressure force applied to the peripheral wall in a direction parallel or substantially parallel to the plane of the cord. Any error between these parts in the mentioned direction will not adversely affect the accuracy of the extruder in the height direction.

In one embodiment, the joining plane extends transversely or perpendicular to the plane and direction of the ply. Therefore, the hanger area can be joined in a plane that is transverse or perpendicular to the plane of the cord.

In yet another embodiment, the first flow path and the second flow path extend parallel or substantially parallel to the joint plane in at least seventy percent of each hanger area. Therefore, the extruded material can flow through each of the hanger areas in a manner parallel to the joint plane and perpendicular to the plane of the cord.

In an embodiment, the first flow path and the second flow path intersect at the joint plane of each of the hanger areas, and/or extend at least partially in the joint plane of each of the hanger areas. Therefore, the first flow path and the second flow path and/or the first flow path and the second flow path can extend in each of the hanger areas in a manner close to or symmetrical to the joint plane.

In a preferred embodiment, the peripheral walls of the first flow channel and the second flow channel are symmetrical or substantially symmetrical to the joint plane in at least 70% of each hanger area. Therefore, the pressure force can be evenly distributed to the peripheral wall in a direction parallel to the plane of the cord.

In yet another preferred embodiment, at least 70% of the surface area of the peripheral wall of each hanger zone extends in a first range relative to the plane of the cord. Preferably, at least eighty percent, and most preferably at least ninety percent of the surface area of each peripheral wall of the hanger zone extends within a first range relative to the plane of the cord. The pressure force is applied to the peripheral wall in a normal direction of the surface area. By extending most of the surface area at an angle within the first range relative to the plane of the cord, pressure forces can be prevented from being directed to the normal or in a direction perpendicular to the plane of the cord.

In yet another embodiment, the first hanger half side and the second hanger half side are separable in a separation direction parallel to the direction of the curtain. Therefore, the pressure force applied to the first hanger half and the second hanger half can be absorbed through the separation of the first hanger half and the second hanger half in the separation direction.

In one embodiment, the extruder head includes a first head member and a second head member. The first head member is used to support or form a mold, and the second head member is used to support or form a cord guide. A hanger half is composed of the first head member, and a second hanger half is composed of the second head member. Therefore, the extruder head can be designed relatively simply.

In another embodiment, the extruder head includes a first head member and a second head member, the first head member is used to support or form a mold, and the second head member is used to support or form a cord guide, wherein The first half of the hanger is an insert supported by the first head member, and the second half of the hanger is an insert supported by the second head member. As an insert, according to According to the required shapes of the first and second flow channels in the hanger area, the first hanger half and the second hanger half can be replaced by other inserts.

In an embodiment, the first head member and the second head member are separable in a separation direction parallel to the plane of the cord. Therefore, the first head member and the second head member can be separated for maintenance or replacement of the mold and/or the cord guide.

In a preferred embodiment, the first head member and the second head member are used to abut each other on opposite sides of the joining plane. Therefore, the first head member and the second head member can abut on the same joint plane with the first hanger half and the second hanger half.

In one embodiment, the extruder head includes a dissipation channel, which extends on the joining plane, wherein when the first head member and the second head member abut on the joining plane, the dissipation channel can be in contact with the first flow channel and the first The two flow channels are isolated, and when the first head member and the second head member are separated in the separation direction, the escape channel is in fluid communication with the first flow channel and/or the second flow channel. When the pressure in the extruded material rises to a dangerous level, the escape channel can allow some of the extruded material to escape from the extruder head, reducing some of the pressure in the extruded material.

In another embodiment, the extruder head includes a dissipation channel that extends on the joint plane, wherein when the insert abuts on the joint plane, the dissipation channel can be connected to the first flow channel and the second flow channel by the insert Isolation, and when the insert is separated in the separation direction, the escape channel is in fluid communication with the first flow channel and/or the second flow channel. Therefore, the separation of the insert can allow the extruded material to escape. Therefore, the insert can be separated instead of the first head member and the second head member.

More preferably, when the inserts are separated in the separation direction, the first head member and the second head member still remain in abutment with each other outside the escape passage. The first head member and the second head member can prevent the released extruded material and/or pressure from being discharged out of the extruder head uncontrollably.

In yet another embodiment, the second head member includes a first shell member and a second shell member, the first shell member is located on the first side of the cord plane, and the second shell member is located on the second side of the cord plane, wherein the first A shell member and a second shell member together form a receiving space for receiving the cord guide, wherein the first shell member and the second shell member are inseparable in a normal direction perpendicular to the plane of the cord.

In one embodiment, the first housing member and the second housing member form a single piece. By constructing a single piece, it is possible to avoid or even eliminate errors between the first housing member and the second housing member on the normal or in a direction perpendicular to the plane of the curtain.

In one embodiment, the mold includes a first mold member and a second mold member. The first mold member is located on the first side of the ply plane, and the second mold member is located on the second side of the ply plane. The second mold member together constitutes a mold opening through which the extrudate can exit the extruder head, wherein the first mold member and the second mold member are inseparable in a normal direction perpendicular to the plane of the cord. With the inseparable first mold member and the second mold member, an error between the first mold member and the second mold member on the normal or in a direction perpendicular to the plane of the curtain can be avoided. Therefore, the mold opening of the mold is less prone to inaccuracy in the height direction.

In one embodiment, the first mold member and the second mold member constitute a single piece. By constructing a single piece, it is possible to avoid or even eliminate errors between the first mold member and the second mold member on the normal or in a direction perpendicular to the plane of the curtain.

In an embodiment, the cord guides are respectively slidably inserted into an operating position in the cord direction in the extruder head, and can also be slidably away from the operating position in a sliding direction relative to the cord direction. By sliding the cord guide in the cord direction and the sliding direction, the first shell member and the second shell member need not be separated.

In one embodiment, the extruder head further includes a locking member, the locking member is used to lock the curtain guide when the curtain guide is in the operating position, and not to slide in the sliding direction. Therefore, during the extrusion, the cord guide can be firmly supported in the operating position, so that the pressure force generated by the extruded material in the first flow channel and the second flow channel will not push the cord guide out of the extrusion head.

In an embodiment, the cord guide includes a first guide and a second guide. The first guide is located on the first side of the plane of the cord and the second guide is located on the second side of the plane of the cord. One of the first guide member and the second guide member includes a plurality of replaceable guide blocks, the guide blocks are used to be juxtaposed in one side direction, the side direction is parallel to the plane of the cord and perpendicular to the direction of the cord Each guide block contains a plurality of guide channels, and the guide channels extend in a direction of the fabric parallel to the plane of the fabric to receive the fabric. The guide channels in the guide block are easily broken due to the relatively thin walls between the guide channels. When broken, the guide block can be easily replaced. Because it replaces a guide block instead of an entire guide, it is relatively inexpensive.

In one embodiment, the extruder head further includes a set of replacement guide blocks to replace one or more guide blocks in the cord guide, wherein at least one of the replacement guide blocks includes the same majority as the guide blocks of the cord guide Guide the channel. The set of replacement guide blocks can be provided with the cord guide to ensure that the guide blocks can be replaced immediately when broken.

In another embodiment, the extruder head further includes a set of replacement guide blocks to replace one or more guide blocks in the cord guide, wherein at least one of the replacement guide blocks includes a guide block different from the guide block of the cord guide Number or shape of guide channels. The replacement guide block can be used to guide the cord guide to guide channels of different structures, for example, a larger guide channel, a larger or smaller number of guide channels, and/or in the direction of the side of the cord guide A wider or narrower guide channel extends.

In yet another embodiment, the plurality of guide channels includes at least one guide channel, and the guide channel is composed of two directly adjacent guide blocks. By providing half of the guide channel on the side of the guide block instead of a relatively thin wall, the guide block may be less susceptible to damage.

According to a second aspect, the present invention provides a method of using the aforementioned extruder head to extrude the cord to strengthen the extrudate, wherein the method includes providing pressurized extruded material into the first flow channel and the second flow channel, And in a direction parallel or substantially parallel to the plane of the cord, in each of the hanger areas, the pressure force generated by the pressurized extruded material is absorbed.

Furthermore, because the first flow channel and the second flow channel are arranged in a steep, vertical or almost perpendicular direction to the plane of the curtain, it is possible to avoid most of the pressure formed in the first flow channel and the second flow channel from being guided to A direction perpendicular to the plane of the cord.

In an embodiment, the extruder head includes a dissipation channel, wherein the method includes allowing the extruded material to pass through the dissipation from the first flow channel and/or the second flow channel when the pressure in the extruded material rises to a dangerous level The channel escapes. When the pressure in the extruded material rises to a dangerous level, the escape channel can allow some of the extruded material to escape from the extruder head, reducing some of the pressure in the extruded material.

In yet another embodiment, the method includes individually sliding the cord guide into an operating position in the direction of the cord in the extruder head, or sliding in a sliding direction relative to the cord direction Leave the operating position. By sliding the cord guide in the cord direction and the sliding direction, the first shell member and the second shell member need not be separated.

Each aspect and feature described and disclosed in this specification can be applied separately, and those that can be applied individually, especially those described in the attached claim, can be used as another divisional application Subject of the patent application.

〔this invention〕

1: Extruding the nose

11: First runner

12: Second runner

13: The first peripheral wall

14: Second peripheral wall

15: Half side of the first hanger

16: Half side of the second hanger

17: Half side of the first hanger

18: Half side of the second hanger

2: mold

21: The first mold component

22: Second mold component

23: Mold opening

24: clamping member

3: Cord guide

30: front end

31: The first guide

32: Second guide

33: Guiding channel

34: first curved surface

35: Second curved surface

36: Guide block

37: Replace guide block

38: Support

4: Shell

41: The first shell member

42: Second shell member

43: Undertake space

44: groove

45: gap

5: Lock firmware

51: main opening

52: Notch

53: Highlight

6: Escape channel

61: Main passage

62: discharge channel

71: The first extruder

72: Second Extruder

73: First Gear Pump

74: Second Gear Pump

8: curtain

9: Extruded materials

90: Cord reinforced extrudate

101: Another extruder head

111: First runner

112: Second channel

102: mold

121: The first mold member

122: Second mold component

104: Shell

141: First shell member

142: second shell member

A: First side

B: Second side

C: first side

D: Second side

F1: First flow path

F2: Second flow path

H: height direction

H1: the first head member

H2: second head member

L: side direction

M: joint plane

P: Cord surface

S1: Supply area

S2: Hanger area

S3: Supply area

S4: Hanger area

T: thickness

W1: First meeting place

W2: Second Interchange

X: Curtain direction

Y: sliding direction

Z: separation direction

The present invention will be described with reference to the embodiments shown in the following drawings, in which: FIG. 1 is a side view of a cross-section of an extruder head and a mold, a cord guide, and a second flow channel according to one of the first embodiments of the present invention; 2 is a cross-sectional view of the extruder of FIG. 1 taken along the line II-II; FIG. 3 is a cross-sectional view of the extruder of FIG. 2 taken along the line III-III; FIGS. 4A and 4B show that the extruder of FIG. 1 has different cord guides The ground is locked and unlocked to prevent the extruding head from sliding; Figure 5A is a more detailed front view of the cord guide of Figure 4; Figure 5B is a side view of the cord guide of Figure 5A; Figure 6 is a diagram 1 is a side view of the cross section of the extruder head, and its cord guide is slid to a non-operating position; and FIG. 7 is another extruder head and a mold, a cord guide and a second embodiment of the invention Side view of the cross section of the second runner.

FIGS. 1 and 2 show an extruder head 1 according to an embodiment of the present invention. The extruder head is used to extrude cord reinforced extrudates 90, particularly to extrude cord reinforced tire components used in tire construction.

The extruder head 1 includes a first head member H1 and a second head member H2, wherein the first head member H1 supports or forms a mold 2 and the second head member H2 forms or supports a cord guide 3 relative to the mold 2 . In this embodiment, the first head member H1 constitutes the mold 2 and the second head member H2 includes a housing 4 for supporting the cord guide 3 relative to the mold 2. Mold 2 system design A plurality of cords 8 and extruded material 9 are received in a cord direction X. The extruded material 9 is an elastic material, such as rubber. The cord 8 is made of a metal or an artificial fiber. The cord guide 3 is provided to guide a plurality of cords 8 on a cord plane P into the mold 2 in a side-by-side relationship. The first head member H1 and the second head member H2 are arranged in abutting manner or placed on a joint plane M, which extends transversely or perpendicular to the cord direction X and the cord plane P. The cord guide 3 and the housing 4 are disposed on a first side A of the joining plane M and the mold 2 is disposed on a second side B of the joining plane M relative to the first side A.

The extruder head 1 further includes a first flow channel 11 and a second flow channel 12, these flow channels extend through the second head member H2 on the first side A of the joining plane M and on the second side B of the joining plane M It extends through at least part of the first head member H1. The first flow channel 11 and the second flow channel 12 are separately provided for fluid communication with a first extruder 71 and a second extruder 72. Preferably, a first gear pump 73 is disposed between the first extruder 71 and the first flow channel 11, and a second gear pump 74 is disposed between the second extruder 72 and the second flow channel 12, In order to provide a pressurized and/or uniform extruded material flow into the respective first and second flow channels 11,12.

As shown in FIG. 1, the mold 2 includes a first mold member 21 and a second mold member 22, wherein the first mold member 21 is located on a first side C of the ply plane P, and the second mold member 22 is located relative to the first Side C A second side D of the plane P of the first mold member 21. The first mold member 21 and the second mold member 22 form a mold opening 23, which can form the extruded material 9 according to the shape of the desired extrudate 90. The mold opening 23 has a height in a height direction H, which defines the thickness T of the extrudate 90. In this embodiment, the first mold member 21 and the second mold member 22 are inseparable, integrally formed, unitary, or a single piece. Preferably, the mold 2 is composed of a hard material, such as metal. Therefore, the first mold member 21 and the second mold member 22 have substantially no error with respect to the height direction H of the mold opening 23.

As shown in FIG. 1, the first flow channel 11 extends through the first housing member 41 of the second head member H2 and is connected to the mold opening 23 from the first side C of the cord plane P. The second flow path 12 extends through the second housing member 42 of the second head member H2 and is connected to the mold opening 23 from the second side D of the cord plane P. The first flow channel 11 is composed of a first peripheral wall 13 that defines or extends along a first flow path F1, which is used to make the extruded material 9 pass through the second head member H2 And enter the mold opening 23. The second flow path 12 is composed of a second peripheral wall 14 which defines or extends along a second flow path F2, which is used to make the extruded material 9 pass through the second head member H2，入入模开23。 H2 and enter the mold opening 23. Both the first and second peripheral walls 13, 14 extend coaxially with the first and second flow paths F1, F2, respectively. In other words, the first and second flow paths F1, F2 extend through the center and/or center of the first and second peripheral walls 13, 14.

As shown in FIGS. 1 and 2, the first flow path 11 and the second flow path 12 each include a supply area S1, S3 and a so-called "hanger" area S2, S4, wherein the supply areas S1, S3 are from their respective extruders 71 and 72 receive the extruded material 9, and the hanger areas S2 and S4 are downstream of the respective supply areas S1 and S3. The hanger areas S2 and S4 are to distribute the extruded material 9 to the mold opening 23 from the supply areas S1 and S3. The supply areas S1, S3 are circular or substantially circular in cross section. The cross-sections of the supply zones S1, S3 are relatively constant through the extruder head 1. It can be best seen in FIG. 2 that the hanger areas S2, S4 diverge or expand in a side direction L that is parallel to the plane P and perpendicular to the direction X of the shade, and is from or fixed to the supply area S1 with respect to the cross section S3, diverging or expanding into a relatively flat and wide cross-section, that is, substantially corresponding to or merged into the mold opening 23. The first and second flow channels 11, 12 can be optionally provided with borders, flow distributors or other components (not shown in the figure) to optimize the flow and/or distribution of the extruded material 9 in the hanger areas S2, S4 . The enlarged cross-sections of the hanger zones S2, S4 give these zones a characteristic shape, similar to the shape of a hanger.

The supply zone S1 of the first flow channel 11 extends at an oblique angle with respect to the plane P of the curtain, and from the first extruder 71 and/or the first gear pump 73 toward the first mold member 21, through the first joint plane M The first shell member 41 of the side A. The supply area S1 meets the bonding plane M from the first side A to the second side B at a first intersection W1. At or near the first intersection W1, the supply area S1 is sharply deflected toward the ply plane P. As shown in FIG. 2, the hanger area S2 of the first flow channel 11 starts from an open portion of the first peripheral wall 13 in the lateral direction L and continues to the downstream of the supply area S1 until the first flow channel 11 extends to the mold opening 23.

In the hanger area S2, the first flow path F1 is in at least 70%, preferably at least 80%, and most preferably at least 90% in the hanger area S2. A first range on the plane P of the curtain extends at an angle of 85 to 95 degrees. Preferably, in this embodiment, the first range is 88 to 92 degrees. More specifically, in said hanger area S2, the surface area of the first peripheral wall 13 of at least 70%, preferably at least 80% and optimally at least 90%, is It extends in the first range relative to the plane P of the cord.

Therefore, a large part of the first flow path 11 and/or the first flow path F1 extends parallel or substantially parallel to the joint plane M, for example, within a deviation range of five degrees or less.

As shown in FIG. 1, the second flow channel 12 is mirror-symmetric to the first flow channel 11 with respect to the plane P of the curtain. Therefore, the second flow path 12 includes an opposing supply area S3, which extends at an oblique angle with respect to the plane P of the curtain and extends from the second extruder 72 and/or the second gear pump 74 through the joint The second housing member 42 of the second head member H2 of the first side A of the plane M faces the mold 2. The second flow path 12 meets the junction plane M from the first side A to the second side B at a second intersection W2. The supply area S3 of the second flow path 12 is sharply deflected toward the ply plane P. As shown in FIG. 2, the second flow channel 12 further includes a hanger area S4, and the hanger area S4 extends from the second peripheral wall 14 to the side The wide part of the lateral direction L starts and extends to the downstream of the supply area S3 until the position where the second flow path 12 is connected to the mold opening 23.

The supply area S3 and the hanger area S4 of the second flow channel 12 extend on the second side D of the ply plane P, and respectively extend from the supply area S1 and the hanger of the first flow channel 11 extending on the first side C of the ply plane P The area S2 is mirror-symmetrical, and thus satisfies the same first range, surface area, and other conditions, as previously discussed for the supply area S1 and the hanger area S2. Therefore, a large portion of the hanger area S4 of the second flow channel 12 also extends parallel or substantially parallel to the joint plane M, for example, within a deviation of five degrees or less.

Because the hanger areas S2 and S4 of both the first flow channel 11 and the second flow channel 12 are arranged in a steep, vertical or almost perpendicular direction to the plane P of the cord, the extruded material 9 is placed in the first flow channel 11 and the second flow channel Most of the pressure formed in 12 is directed to a direction that is perpendicular or substantially perpendicular to the joint plane M and/or parallel or substantially parallel to the plane P of the cord. Therefore, the force perpendicular to the plane P of the cord can be reduced and/or avoided, so that the extruder head 1 is less likely to be inaccurate in the direction of the height direction H. In particular, the accuracy of the thickness T of the extrudate 90 can be improved.

In this embodiment, as shown in FIG. 1, the extruder head 1 includes a plurality of replaceable inserts, at least in or along the hanger area S2, S4, the inserts constitute the first and second flow channels 11, 12 respectively Other first and second peripheral walls 13, 14. The insert is supported and positioned by the first and second head members H1, H2. Depending on the required shape of the first and second flow channels 11, 12, the insert can be replaced by other inserts. As shown in FIGS. 1 and 3, the first flow channel 11 is composed of a first side A located on the joining plane M, a first insert as the first hanger half 15 and a second side B located on the joining plane M, A second insert is formed as the second half 16 of the second hanger. Similarly, as shown in FIG. 1, the second peripheral wall 14 of the hanger area S4 of the second flow channel 12 is formed by a first side A located on the joining plane M as a third insert of the first hanger half 17, versus Located on the second side B of the joining plane M, it is formed as a fourth insert part of the second hanger half 18. As shown in FIG. 3, the first and second head members H1, H2 are firmly clamped together by the clamping member 24 in the peripheral area of the escape passage 6 at the junction plane M, and the area between the clamping members 24, The first to fourth hanger halves 15-18 are joined to the same joining plane M.

As shown in FIG. 1, the first head member H1 and the second head member H2 are joined to the joint plane M. In order to maintain or replace the mold 2, the cord guide 3 and/or the first to fourth hanger halves 15-18, the first head member H1 and the second head member H2 are separated in a separation direction Z perpendicular to the joining plane M . As shown in FIGS. 1 and 2, the extruder head 1 is further provided with a escape channel 6 extending in the joint plane M between the first head member H1 and the second head member H2. The escape channel 6 is preferably provided in the mold 2, the housing 4, or both. It can be clearly seen in FIG. 2 that the dissipation channel 6 extends around the die opening 23, the first flow channel 11 and the second flow channel 12 on the joint plane M, and can be formed by the first head member H1 and the second The head members H2 abut on each other at the joint plane M, so that the fluid flowing through the escape channel 6 is isolated from the mold opening 23, the first flow channel 11 and the second flow channel 12. In particular, the dissipation channel 6 includes an annular main channel 61 and a plurality of discharge channels 62, wherein the main channel 61 extends around a group of members around the periphery, including the first flow channel 11, the second flow channel 12 and the mold opening 23, The discharge channel 62 is branched from the main channel 61 and connected to the outside of the extruder head 1.

On the first to fourth hanger halves 15-18, the first and second head members H1, H2 are provided with a negative deviation, for example, a gap 45, to ensure that the first to fourth hanger halves 15-18 are secure Ground together. Preferably, the gap 45 extends from the first to fourth hanger halves 15-18 to the escape channel 6. When the pressure of the extruded material 9 in the mold opening 23, the first flow channel 11 and/or the second flow channel 12 rises to a dangerous level, for example, may cause the extrusion head 1 to explode, the first to fourth hanger half sides 15 -18 can be slightly separated in the separation direction Z, at this time, the portions of the first and second head members H1, H2 outside the escape passage 6 still abut each other at the joint plane. This Such a space allows the high-pressure extruded material 9 to escape into the escape channel 6 and out of the extruder head 1. This should reduce the pressure in the extruded material 9 to an acceptable level.

As shown in FIGS. 5A and 5B, the cord guide 3 includes a first guide 31, a second guide 32, and a support 38, wherein the first guide 31 is located on the first side C of the plane P of the cord , The second guide 32 is substantially located on the second side D of the plane P, and the support 38 is used to support the first guide 31 and the second guide on the opposite sides C, D of the plane P Piece 32 together. One or both of the first guide member 31 and the second guide member 32 form a plurality of guide channels 33 parallel to each other, and the guide channels 33 extend in a parallel manner in the plane P of the fabric and are parallel or substantially The upper is parallel to the direction X of the fabric. Each guide channel 33 is used to receive a curtain 8 individually. Preferably, the guide channel 33 is disposed or at least partially located in the second guide member 32. The guide channel 33 is closed by the contact between the second guide 32 and the first guide 31. The cord guide 3 is provided with a front end 30 which faces the mold 2 in the plane X of the cord direction. At the front end 30, the first guide 31 includes a first curved surface 34 that extends on the first side C of the plane P to deflect the extruded extruded material from the first flow channel 11 The hanger area S2 faces and/or enters the mold opening 23. At the same front end 30, the second guide 32 includes a second curved surface 35 that extends on the second side D of the plane P of the cord to deflect the extruded material flowing out of the second flow path 12 The hanger area S4 faces and/or enters the mold opening 23.

Especially in this embodiment, as shown in FIGS. 5A and 5B, the second guide member 32 includes a plurality of guide blocks 36, and the guide blocks 36 are arranged side by side in the support member 38 along the side direction L and parallel to the curtain Plane P and perpendicular to the direction X of the cord. Each guide block 36 includes a plurality of guide channels 33. In the lateral direction L, half of the guide channels 33 are provided on both sides of each guide block 36, and half of the guide channels 33 of the directly adjacent guide blocks 36 form a complete guide channel 33.

The guide channel 33 is easily damaged by the thin walls between the guide channels 33. When the guide channel 33 is damaged or the structure of the guide channel 33 is to be changed, the extruder head 1 is accompanied by a set of replacement guide blocks 37 to replace one or more guide blocks 36. The guide block 36 can be easily replaced by one or more replacement guide blocks 37. The replacement guide 37 may contain a guide channel of selectable shape. When the width of the mold is reduced, the replacement guide block 37 may have fewer guide channels 33 at the opposite ends of the plurality of guide blocks 36.

As shown in FIG. 1, the housing 4 includes a first housing member 41 and a second housing member 42, wherein the first housing member 41 is located on the first side C of the cord plane P, and the second housing member 42 is located on the first side C of the cord plane P D on both sides. As can be clearly seen in FIG. 6, the first housing member 41 and the second housing member 42 form a receiving space 43 for receiving the cord guide 3. The shell 4 is used to support and position the cord guide 3 and the mold 2 on the cord plane P. In this embodiment, the first housing member 41 and the second housing member 42 are inseparable, integrally formed, unitary, or a single piece. Preferably, the housing 4 is composed of a hard material, such as metal. Therefore, the first housing member 41 and the second housing member 42 have substantially no error in the height direction H of the receiving space 43.

As shown in FIG. 1, the cord guide 3 is slidably inserted into the receiving space 43 of the housing 4 to an operating position in a cord direction X parallel to the cord plane P. As shown in FIG. 6, the cord guide 3 slides out of the housing 4 to a non-operating position in a sliding direction Y relative to the cord direction X. The cord guide 3 is preferably supported on a support (not shown in the figure) to keep the cord guide 3 on the horizontal plane of the cord plane P. Therefore, the cord guide 3 can be slid in the sliding direction Y over the plurality of cords 8 without removing the cord 8 from the cord guide 3. In the non-operating position, the cord guide 3 can be separated from the extruder head 1 from the first and second extruders 71, 72 to allow the first guide 31 to be pulled from the second guide 32 and pulled out of the support Piece member 38. After that, a new cord 8 can be inserted into the guide channel 33 of the cord guide 3.

In order to lock the cord guide 3 in the operating position and not slide in the sliding direction Y, the extruder head 1 is provided with a locking member 5. The locking member 5 is placed in a groove 44 of the casing 4 and can be between a locked position (as shown in FIG. 4A) and a released position (as shown in FIG. 4B), relative to the casing 4, Slide in side direction L. The locking member 5 includes a locking disk with a main opening 51 and a plurality of grooves 52. In the locked position, the groove 52 is misaligned with the protrusion 53 of the cord guide 3 in the sliding direction Y. Therefore, the cord guide 3 is fixed to the housing 4 in the sliding direction Y. In the release position, the groove 52 is aligned with the protrusion 53 of the cord guide 3 so that the cord guide 3 can be moved out of the housing 4 in the sliding direction Y.

The individual aspects of the cord guide 3, especially the replaceable guide block 36, the slidability in the sliding direction Y and/or the locking member 5 are independent of the first and second flow channels 11, 12 described later Appearance and can be the subject of a patent division application.

As shown in FIG. 1, the first curved surface 34 and the second curved surface 35 at the front end 30 of the cord guide 3 are respectively tangent to or substantially tangent to the first flow channel 11 at each hanger area S2, S4 The first and second peripheral walls 13 and 14 of the second flow path 12 smoothly receive the extruded material 9 flowing out from the respective first and second flow paths F1 and F2. The first and second curved surfaces 34, 35 are concave in the cord direction X. Preferably, the first and second curved surfaces 34, 35 are tangent to the plane P of the plane on the opposite sides C, D of the plane P. The first and second curved surfaces 34, 35 are thus used to smoothly receive and deflect the extruded material 9 flowing out of the respective first and second flow paths F1, F2, and make it enter the cord direction X.

Alternatively, the first and second curved surfaces 34, 35 may be substantially planar (not shown in the figure), with a second range of 30 to 50 degrees relative to the plane P of the cord Set at an angle, and preferably about forty-five degrees. In the above two ways, the first flow channel 11 and the second flow channel 12 are respectively in a direction perpendicular to or substantially perpendicular to the plane P of the cord and/or parallel or substantially parallel to the joint plane M, extend To the first curved surface 34 and the second curved surface 35. On the first and second curved surfaces 34, 35, the extruded material 9 will exert a compressive force on the cord guide 3, wherein at least most of the compressive force will act on the slide relative to the cord direction X Direction Y. As shown in FIG. 1, the cord guide 3 is locked by the locking member 5 in the operating position. However, any error in the sliding direction Y mentioned above between the cord guide 3 and the housing 4 does not adversely affect the accuracy of the extruder head 1 in the height direction H.

The above are only the preferred and feasible embodiments of the present invention, but are not intended to be limiting. The equivalent variations of the application of the present specification and the scope of patent application, and those with ordinary knowledge in the field of the present invention can easily think And other implementations should be included in the patent scope of the present invention.

For example, FIG. 7 shows another extruding head, an extruding head 101, which differs from the extruding head 1 discussed earlier in that the first and second flow channels 111, 112 of the extruding head 101 It is composed of the first and second head members H1, H2, instead of the insert as shown in FIG. In particular, the first flow channel 111 is composed of the first mold member 121 of the mold 102 and the first shell member 141 of the housing 104, and the second flow channel 112 is composed of the second mold member 122 of the mold 102 and the second shell member of the housing 104 142 Composition. Although this embodiment is slightly less flexible due to the lack of inserts, those skilled in the art will understand that the first and second flow channels 111, 112 are still divided into a supply area S1, S3 and wide hanger areas S2, S4, The supply areas S1 and S3 each have a fixed cross-sectional, circular area, similar to the areas S1-S4 shown in FIGS. 1, 2 and 3. The hanger areas S2, S4 still meet the first range discussed previously. In order to reduce the pressure in the extruded material 9, when the pressure exceeds a critical value, the first and second head members H1, H2 are separable to replace the inserts separated in the separation direction Z.

What's more, many modifications to the shape and design of the runner will be apparent to those skilled in the art, and can be appealed to fall within the scope of the present invention when satisfying the scope specific to the claims.

In summary, the present invention relates to an extruder head 1, 101. These extruder heads are used to extrude cords to strengthen extrudates. The extruder head 1, 101 includes a mold 2, 102 and a cord guide 3. The extrusion heads 1, 101 further include a first flow path 11, 111 and a second flow path 12, 112, wherein the first flow paths 11, 111 pass through the extrusion head 1, 101 along a first flow path F1 Extending from the first side C of the cord plane P to the molds 2, 102, and the second flow channels 12, 112 extending through the extruder heads 1, 101 along a second flow path F2, and from the cord The second side D of the plane P is connected to the molds 2, 102. The first flow path F1 and the second flow path F2 respectively include a supply area S1, S3 and a hanger area S2, S4, wherein the first flow path F1 and the second flow path F2 are at least 70% of their The respective hanger areas S2 and S4 extend at an angle of 85 to 95 degrees with respect to the plane P of the cord.

1: Extruding the nose

11: First runner

12: Second runner

13: The first peripheral wall

14: Second peripheral wall

15: Half side of the first hanger

16: Half side of the second hanger

17: Half side of the first hanger

18: Half side of the second hanger

2: mold

21: The first mold component

22: Second mold component

23: Mold opening

3: Cord guide

30: front end

31: The first guide

32: Second guide

34: first curved surface

35: Second curved surface

38: Support

4: Shell

41: The first shell member

42: Second shell member

44: groove

5: Lock firmware

6: Escape channel

61: Main passage

71: The first extruder

72: Second Extruder

73: First Gear Pump

74: Second Gear Pump

8: curtain

9: Extruded materials

90: Cord reinforced extrudate

A: First side

B: Second side

C: first side

D: Second side

F1: First flow path

F2: Second flow path

H: height direction

H1: the first head member

H2: second head member

M: joint plane

P: Cord surface

S1-S4: Supply area

T: thickness

W1: First meeting place

W2: Second Interchange

X: Curtain direction

Y: sliding direction

Z: separation direction

Claims (37)

An extruding head for extruding a cord to strengthen extruded objects, wherein the extruding head includes: a mold for receiving the cord and the extruded material in a cord direction; a cord guide and the cord guide It is used to guide the curtain and enter the mold in parallel to the direction of the curtain, on a plane of the curtain; a first flow channel that passes through the extruder along a first flow path Extending in the form of a head and connected to the mold from a first side of the plane of the cord; and a second flow path extending through the extruder head along a second flow path, and Connected to the mold from a second side relative to the plane of the curtain of the first side; wherein the first flow path and the second flow path each include a supply area and a hanger area, the hanger area being the supply area Downstream of it and having a wide cross-section, wherein the first flow path and the second flow path are at least 70% of each of the hanger areas, with a first relative to the plane of the cord The range extends from an angle of 85 to 95 degrees. The extruder head as claimed in item 1 of the patent scope, wherein the first flow path and the second flow path are in each hanger area up to the plane of the cord, and in at least 70% of each hanger area , Extending at an angle within the first range relative to the plane of the cord. For example, the extruder head of the first patent application scope, where the first range is 88 to 92 degrees. An extruder head as claimed in item 1 of the patent application, wherein the first flow path and the second flow path extend perpendicular to the plane of the cord in each hanger area. For example, the extruder head of patent application items 1 to 4, wherein the first flow path and the second flow path are in at least 80% or at least 90% of each hanger area It extends in the first range relative to the plane of the cord. An extruder head as claimed in item 1 of the patent application scope, wherein the first flow path and the second flow path extend in the first range relative to the plane of the cord in the entire hanger area. For example, the extruder head of claim 1, wherein the hanger zone extends to the mold in a direction perpendicular to the plane of the cord. An extruder head as claimed in item 1 of the patent application, wherein the cord guide includes a front end that extends at least partially into the mold, and the front end has a first curved surface and a second curved surface, the first A curved surface and the second curved surface are on opposite sides of the plane of the cord, extending toward the mold in the direction of the cord; wherein the hanger areas of the first flow channel and the second flow channel are respectively perpendicular to the A direction of the plane of the cord extends to the first curved surface and the second curved surface; wherein the first curved surface and the second curved surface are used to respectively deflect the first flow channel and the second flow The extruded material and direct the extruded material towards and/or into the mold. The extruder head as claimed in item 8 of the patent scope, wherein the first curved surface and the second curved surface are tangent to each of the hanger area and the plane of the cord. For example, the extruder head of the first patent application scope, wherein the hanger areas of the first flow channel and the second flow channel each include a peripheral wall, wherein the extruder head has the first flow channel and the second The flow channels each include a first hanger half and a second hanger half, the first hanger half and the second hanger half are used to abut on opposite sides of a joint plane to form the first The first flow path and the peripheral wall of the second flow path. An extruder head as claimed in item 10 of the patent application, wherein the joint plane extends transversely or perpendicularly to the plane of the cord and the direction of the cord. An extruder head as claimed in item 10 of the patent application scope, wherein the first flow path and the second flow path extend parallel to the joint plane in at least 70% of each hanger area. An extruder head as claimed in item 1 of the patent scope, wherein the first flow path and the second flow path intersect at the joint plane of each hanger area, and/or at least partially in the joint plane of each hanger area extend. For example, the extruder head of claim 10, wherein the peripheral walls of the first flow channel and the second flow channel are symmetrical to the joint plane in at least 70% of each hanger area. For example, the extrusion head of claim 10, wherein at least 70% of the surface area of the peripheral wall of each hanger area extends in the first range relative to the plane of the cord. For example, the extruding head of claim 15 of the patent scope, wherein at least 80% or at least 90% of the surface area of the peripheral wall of each hanger area is located at the first relative to the plane of the cord Extend in scope. An extruder head as claimed in item 10 of the patent application range, wherein the half side of the first hanger and the half side of the second hanger are separable in a separating direction parallel to the direction of the cord. The extruder head as claimed in item 10 of the patent scope, wherein the extruder head includes a first head member and a second head member, the first head member is used to support or constitute the mold, the second head member It is used to support or constitute the cord guide, wherein the first hanger half is composed of the first head member, and the second hanger half is composed of the second head member. The extruder head as claimed in item 10 of the patent scope, wherein the extruder head includes a first head member and a second head member, the first head member is used to support or constitute the mold, the second head member It is used to support or constitute the cord guide, wherein the first hanger half is an insert supported by the first head member, and the second hanger half is an insert supported by the second head member . An extruder head as claimed in claim 19, wherein the first head member and the second head member are separable in a separating direction parallel to the plane of the cord. An extruder head as claimed in claim 19, wherein the first head member and the second head member are used to abut on opposite sides of the joining plane. For example, the extrusion head of claim 18, wherein the first hanger half and the second hanger half are separable in a separation direction parallel to the direction of the cord; the extruder head includes a dissipation A channel, the escape channel extends at the junction plane, wherein when the first head member and the second head member abut on the junction plane, the escape channel can be isolated from the first flow channel and the second flow channel, and When the first head member and the second head member are separated in the separation direction, the escape channel is in fluid communication with the first flow channel and/or the second flow channel. An extruder head as claimed in item 19 of the patent scope, wherein the extruder head includes a dissipation channel that extends on the joint plane, wherein when the insert abuts on the joint plane, the dissipation channel can By separating the insert from the first flow channel and the second flow channel, and when the insert is separated in the separation direction, the escape channel is in fluid communication with the first flow channel and/or the second flow channel. An extruder head as claimed in item 23 of the patent scope, wherein, when the insert is separated in the separation direction, the first head member and the second head member are used to maintain mutual abutment on the outside of the escape passage. For example, the extrusion head of claim 18 or 19, wherein the second head member includes a first shell member and a second shell member, the first shell member is located on the first side of the cord plane, the The second shell member is located on the second side of the plane of the cord, wherein the first shell member and the second shell member together form a receiving space for receiving the cord guide, wherein the first shell member and the second The shell member is inseparable in a normal direction perpendicular to the plane of the cord. An extruder head as claimed in item 25 of the patent scope, wherein the first housing member and the second housing member constitute a single piece. An extruder head as claimed in item 1 of the patent scope, wherein the mold includes a first mold member and a second mold member, the first mold member is located on the first side of the cord plane, and the second mold member is located The second side of the cord plane, wherein the first mold member and the second mold member together form a mold opening through which the extrudate can exit the extruder head, wherein the first mold member and the second The mold member is inseparable in a normal direction perpendicular to the plane of the cord. An extruder head as claimed in item 27 of the patent scope, wherein the first mold member and the second mold member constitute a single piece. The extruder head as claimed in item 1 of the patent scope, in which the cord guides are respectively in the direction of the cord, in the extruder head, can be slidably inserted into an operating position, can also be relative to the direction of the cord A sliding direction of, can slide away from the operating position. For example, the extruding head of claim 29, wherein the extruding head further includes a locking member, the locking member is used to lock the cord guide when the cord guide is in the operating position, not to slide Swipe in the direction. The extruder head as claimed in item 1 of the patent scope, wherein the cord guide includes a first guide and a second guide, the first guide is located on the On one side, the second guide member is located on the second side of the plane of the cord, wherein one of the first guide member and the second guide member includes a plurality of replaceable guide blocks, the guide blocks are For juxtaposing on one side direction, which is parallel to the plane of the cord and perpendicular to the direction of the cord, wherein each guide block includes a plurality of guide channels, the guide channels are parallel to the plane of the cord Of a cord extends in the direction to receive the cord. For example, the extruding head of claim 31, wherein the extruding head further includes a set of replacement guide blocks to replace one or more guide blocks in the cord guide, at least one of the replacement guide blocks includes The same number of guide channels as the guide blocks of the cord guide. For example, the extruding head of claim 31, wherein the extruding head further includes a set of replacement guide blocks to replace one or more guide blocks in the cord guide, at least one of the replacement guide blocks includes A guide channel different from the number or shape of the guide blocks of the cord guide. For example, the extruder head of claim 31, wherein the plurality of guide channels include at least one guide channel, and the guide channel is composed of two directly adjacent guide blocks. A method for using the extruder head of claim 1 to extrude cords to reinforce extrudates, wherein the method includes providing pressurized extruded material into the first flow channel and the second flow channel, and parallel to One side of the plane of the cord is upwards, and in each hanger area, the pressure force generated by the pressurized extruded material is absorbed. The method of claim 35, wherein the extruder head includes a dissipation channel, wherein the method includes allowing the extruded material from the first flow channel when the pressure in the extruded material rises to a dangerous level And/or the second flow channel, which escapes through the escape channel. For example, the method of claim 35, wherein the method includes individually sliding the cord guide into an operating position in the direction of the cord in the extruder head, or in the direction relative to the cord In a sliding direction, slide away from the operating position.

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