Pressing die capable of being repeatedly used

Abstract

The utility model relates to the technical field of steel cord production, in particular to a reusable pressing die which comprises at least two die plates capable of being oppositely combined, and each die plate at least comprises two oppositely combined faces capable of being oppositely combined. Each folding surface is provided with a wire passing groove for a steel cord to pass through, and when any two folding surfaces are mutually folded, the positions of the wire passing grooves in the folding surfaces are oppositely distributed to form a groove hole which is closed in the circumferential direction and is provided with two through ends; the wire passing groove comprises a wire passing channel, and a first wire concentration port and a second wire concentration port which are arranged at the two ends of the wire passing channel; a plurality of involution surfaces are arranged on the template, and each involution surface is provided with a wire passing channel with wire collecting ports at two ends aiming at a vulnerable wire collecting port part, so that the effect of repeated utilization can be achieved, and on the basis of one template, the surface structure of the template is fully utilized and the wire passing groove is processed; the problem that the replacement cost of the pressing die is high is solved with low cost.

Description

Technical Field

[0001] The utility model relates to the technical field of steel cord production, and particularly relates to a reusable pressing die. Background Art

[0002] The stranding of steel cord refers to the area where every two steel wires in the steel cord are twisted with each other. Each steel wire in the steel cord needs to be twisted and reinforced at the stranding part to ensure its strength and stability. This structure enables the steel cord to have characteristics such as strong load-bearing capacity and long service life. The process of stranding the steel cord into a rope includes processes such as wire pay-off, over-twisting, and wire take-up. The core wire and single wires are payed off by the rotation of the flywheel disc in the wire pay-off device, and then bundled by the wire gathering nozzle. The bundled core wire and single wires are twisted into a rope by the external over-twisting device and output. The twisted core wire and single wires pass through the wire take-up device to achieve rope formation without residual torsion. At the gathering place, a pressing die is usually used to gather the wires and make the twisting uniform.

[0003] The pressing die needs to bear a large pressure. Usually, the upper and lower two dies are used to press and gather the wires. The outside of the die is pressed against the wire passing die with a set pressure within the process requirements. Although the pressing die is made of cemented carbide, due to long-term high pressure, high speed, and high friction, it is worn and cracked, especially the gathering port is more likely to be damaged. Once the gathering port is damaged, the whole pressing die needs to be replaced and scrapped. Moreover, the upper and lower parts of the pressing die are paired, and both need to be replaced after damage, resulting in high costs. Content of the Utility Model

[0004] The utility model provides a reusable pressing die, which includes at least two templates that can be mutually mated, and each of the templates includes at least two mating surfaces that can be mutually mated;

[0005] Each of the mating surfaces is provided with a wire passing groove for the steel cord to pass through. When any two of the mating surfaces are mutually mated, the wire passing grooves on the mating surfaces are distributed relatively to form a circumferentially closed and both-ends-through slot hole;

[0006] The wire passing groove includes a wire passing channel and a first gathering port and a second gathering port arranged at both ends of the wire passing channel.

[0007] Preferably, both the first gathering port and the second gathering port are configured as flared structures, and the structural dimensions of the first gathering port and the second gathering port are the same.

[0008] Preferably, it includes two templates that can be mutually mated. The opposite side surfaces of the templates are both set as the mating surfaces, and the wire passing groove is opened at the middle position of the mating surface.

[0009] Preferably, it includes two templates that can be mutually mated. The adjacent side surfaces of the templates are both set as the mating surfaces, and the wire passing groove is opened at the middle position of the mating surface.

[0010] Preferably, it includes two templates that can be mated with each other. The end face of the template is configured as a rectangle, and the four side faces of the template are all set as the mating faces. The wire passing groove is opened at the middle position of the mating face.

[0011] Preferably, there is more than one group of the wire passing grooves on the mating face, and the wire passing grooves are all parallel to the edge line of the mating face.

[0012] Preferably, the end face of the template is configured as a rectangle, a regular quadrilateral, a regular hexagon or a rhombus.

[0013] Preferably, the template includes a hard aluminum alloy template.

[0014] Compared with the prior art, the advantages of the present utility model are as follows:

[0015] By arranging a plurality of mating faces on the template and providing a wire passing channel with wire collecting ports at both ends on each mating face for the vulnerable wire collecting port part, the present utility model can achieve the effect of multiple uses. Based on one template, the surface structure of the template is fully utilized to process the wire passing grooves, so as to solve the problem of high die replacement cost at a low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are not intended to be drawn to scale. In the drawings, each identical or approximately identical component shown in each figure may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the present utility model will be described by way of example and with reference to the drawings, wherein:

[0017] Figure 1 is a schematic perspective view of a reusable die shown in an embodiment of the present utility model;

[0018] Figure 2 is a schematic right side view of a reusable die shown in an embodiment of the present utility model;

[0019] Figure 3 is Figure 2 the cross-sectional structure schematic view in the A-A direction of

[0020] Figure 4 is a schematic end face structure view of a third template shown in an embodiment of the present utility model;

[0021] Figure 5 is a schematic structure view of the fourth template in a pressed state shown in an embodiment of the present utility model;

[0022] 10. Template; 11. First template; 12. Second template; 13. Third template; 14. Fourth template; 20. Wire groove; 201. Wire passing channel; 202. First wire gathering port; 203. Second wire gathering port. Detailed implementation mode

[0023] In order to better understand the technical content of the present utility model, specific embodiments are hereby given and described in conjunction with the accompanying drawings as follows.

[0024] Existing die presses generally consist of two mating templates 10. A wire groove 20 is provided on the mating surfaces of the templates 10. After mating, it is used for gathering and stranding steel cord. However, since the first-stage notch of the wire groove 20 bears high pressure and high friction for a long time, it is prone to frictional damage, resulting in the scrapping of the entire die press and causing a high die press replacement cost.

[0025] The present utility model proposes a reusable die press, enabling the die press to be reused, aiming to solve the problem of high die press replacement cost. The die press includes at least two mating templates 10. The templates 10 are made of hard aluminum alloy templates, and each template 10 includes at least two mating surfaces that can mate with each other. In this way, compared with the traditional template 10 having only one mating surface, by providing more than two mating surfaces on the template 10, when the wire groove 20 on one of the mating surfaces is damaged, the other mating surfaces can be continued to be mated and used to achieve the purpose of reuse and reduce the die press replacement cost.

[0026] Furthermore, a wire groove 20 for the steel cord to pass through is provided on each mating surface. When any two mating surfaces are mated with each other, the wire grooves 20 on the mating surfaces are distributed relatively to form a circumferentially closed and through-hole at both ends. The wire groove 20 includes a wire passing channel 201 and a first wire gathering port 202 and a second wire gathering port 203 provided at both ends of the wire passing channel 201.

[0027] In this way, on the basis of providing multiple mating surfaces on the template 10, a first wire gathering port 202 and a second wire gathering port 203 are respectively provided at both ends of the wire passing channel 201. Compared with the traditional wire passing channel 201 having only a single wire gathering port, when the wire gathering port at one end of the wire passing channel 201 is damaged, the template 10 can be reversed head and tail, and the intact wire gathering port on the other side can be used, further utilizing the structure of the template 10 itself and reducing the replacement cost.

[0028] In a preferred embodiment, both the first wire gathering port 202 and the second wire gathering port 203 are configured as flared structures, which is beneficial for the steel cord to gather and pass through. Moreover, the structural dimensions of the first wire gathering port 202 and the second wire gathering port 203 are the same. When the first wire gathering port 202 on one side is damaged, the template 10 can be reversed head and tail, and the second wire gathering port 203 on the other side can be used.

[0029] Combined withFigure 1 , Figure 2 and Figure 3 As shown in Figure 2 , Figure 3 , and , the die includes two templates 10 that can be joined together. The opposite side surfaces of the template 10 are both set as mating surfaces. A wire groove 20 is provided at the middle position of the mating surface. The wire groove 20 includes a wire passage 201 and a first wire gathering port 202 and a second wire gathering port 203 provided at both ends of the wire passage 201. In this case, after the first wire gathering port 202 at one end of the wire passage 201 is damaged, the template 10 can be reversed end to end, and the intact second wire gathering port 203 on the other side can be used. When both wire gathering ports at both ends are damaged or a part of the wire passage 201 is damaged, the template 10 can be flipped to switch the mating surface of the template 10, so that the intact wire groove 20 on the template 10 is re-joined, achieving the effect of being reused three times.

[0030] It should be understood that in some embodiments, the die includes a first template 11 and a second template 12 that can be joined together. The adjacent side surfaces of the template 10 are both set as mating surfaces. A wire groove 20 is provided at the middle position of the mating surface. In this case, after the first wire gathering port 202 at one end of the wire passage 201 is damaged, the template 10 can be reversed end to end, and the intact second wire gathering port 203 on the other side can be used. When both wire gathering ports at both ends are damaged or a part of the wire passage 201 is damaged, the template 10 can be flipped to switch the mating surface of the template 10, so that the intact wire groove 20 on the template 10 is re-joined, achieving the effect of being reused three times.

[0031] Combined with Figure 4 As shown in Figure 4 , in order to further increase the number of mating surfaces to improve the number of uses of the template 10 of the die, it further includes two third templates 13 that can be joined together. The end face of the template 10 is constructed as a rectangle, and all four side surfaces of the template 10 are set as mating surfaces. A wire groove 20 is provided at the middle position of the mating surface. Compared with the above two structures, there are two more mating surfaces, and the maximum number of uses is eight times.

[0032] As Figure 5 shown in Figure 5 , in order to increase the setting amount of the wire groove 20 per unit area of the end face of the template 10, it further includes three fourth templates 14 that can be joined together. The end face of the fourth template 14 is constructed as a rhombus. Three groups of wire grooves 20 are provided on each mating surface, and the wire grooves 20 are all parallel to the edge line of the mating surface. There are two groups of mating surfaces, and three groups of wire grooves 20 are provided on each mating surface, and the maximum number of uses can reach twelve times.

[0033] In combination with the above embodiments, a plurality of mating surfaces are provided on the template 10, and a wire passing channel 201 with wire passing ports at both ends is provided on each mating surface for the vulnerable wire collection port part. Thus, when the wire collection port on one side is damaged due to long-term contact and friction with the steel cord, the template 10 can be reversed head to tail, and the wire collection port with intact structure on the other side can be used to achieve the effect of secondary utilization. When the wire collection ports at both ends are damaged or the wire passing channel 201 is partially damaged, the template 10 can be flipped over, and the mating surfaces of the template 10 can be switched, so that the wire passing groove 20 with intact structure on the template 10 can be realigned to achieve the effect of tertiary utilization. When a plurality of mating surfaces are provided on the template 10 and a plurality of wire passing grooves 20 are provided on each mating surface, the effect of multiple utilization can be achieved. In this way, on the basis of a single template 10, the surface structure of the template 10 can be fully utilized to process the wire passing grooves 20, thereby solving the problem of high die replacement cost at a relatively low cost.

[0034] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A reusable die, characterized in that: It comprises at least two mutually mateable templates (10), and each of the templates (10) comprises at least two mutually mateable surfaces; Each of the mating surfaces is provided with a wire groove (20) for the steel cord to pass through, and when any two of the mating surfaces are mated with each other, the wire grooves (20) on the mating surfaces are relatively distributed to form a slot hole which is circumferentially closed and through-connected at both ends; The wire-passing trough (20) comprises a wire-passing channel (201) and a first wire-collecting opening (202) and a second wire-collecting opening (203) arranged at two ends of the wire-passing channel (201).

2. The reusable die according to claim 1, characterized in that: The first line collection port (202) and the second line collection port (203) are both constructed as bell-mouth structures, and the first line collection port (202) and the second line collection port (203) have consistent structural dimensions.

3. The reusable stamper according to claim 1, characterized in that: It comprises two templates (10) that can be matched with each other, the two opposite side surfaces of the templates (10) are both arranged as the matching surfaces, and the wire passing groove (20) is provided in the middle of the matching surfaces.

4. The reusable stamper according to claim 1, characterized in that: It comprises two templates (10) that can be matched with each other, two adjacent side surfaces of the templates (10) are both arranged as the matching surfaces, and the wire passing groove (20) is provided in the middle of the matching surfaces.

5. The reusable stamper according to claim 1, characterized in that: It comprises two templates (10) that can be mated with each other, the end faces of the templates (10) are constructed in a rectangular shape, the four side faces of the templates (10) are all arranged as mating faces, and the wire passing groove (20) is provided in the middle of the mating faces.

6. The reusable stamping die according to any one of claims 3 to 5, characterized in that: More than one set of the wire passing grooves (20) are provided on the mating surface, and the wire passing grooves (20) are all parallel to the edge lines of the mating surface.

7. The reusable stamper according to claim 1, characterized in that: The end surface of the template (10) is configured as a rectangle, a regular quadrilateral, a regular hexagon or a rhombus.

8. The reusable stamper according to claim 1, characterized in that: The template (10) comprises a hard aluminum alloy template.

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