Cord fabric trimming device and wirecord fabric processing system

Abstract

The invention provides a cord fabric trimming device and a wirecord fabric processing system. The cord fabric trimming device comprises a mounting assembly; the positioning assembly is arranged on the mounting assembly, at least one part of the positioning assembly can move relative to the mounting assembly, and the positioning assembly is provided with a positioning channel for the curtain cloth to pass through; and the cutting assembly is arranged on the mounting assembly, in the movement direction of the curtain cloth, the cutting assembly is located on the downstream of the positioning assembly and cuts the curtain cloth passing through the positioning channel, and the cutting assembly can cut the curtain cloth from the two sides of the curtain cloth in the thickness direction. The problem that in the prior art, the trimming effect of the giant tire wirecord fabric is poor is solved.

Description

Technical Field

[0001] The present invention relates to the field of tire production equipment, and in particular to a tire cord trimming device and a steel cord processing system. Background Art

[0002] In the manufacturing process of engineering tires and giant radial tires used in mining engineering machinery, the steel cord belt carcass is one of the important components. The production of engineering tires and giant tire steel cord carcasses requires the calendered steel cord to be cut according to the required angle and width, and then spliced ​​and rolled for molding and use.

[0003] Usually, the edge of the calendered steel cord does not meet the requirements of the joint, resulting in problems such as too large cord spacing at the joint or insufficient joint strength. Usually, the calendered cord needs to be trimmed after the cutting process to meet the joint requirements.

[0004] Traditional technical solution for trimming rubber edges by cold trimming with disc knives: The thickness of traditional all-steel and semi-steel carcass cords is usually between 1mm and 4mm, and cold trimming with disc knives is usually used to trim the excess rubber edges of the cords. Torque motors are used to drive disc knives on both sides of the cords to trim against the edges of the cords and trim the excess rubber edges. This method is only suitable for trimming traditional all-steel and semi-steel carcass cords, which are usually between 1mm and 4mm thick, with thin steel wire spacing and small steel wire spacing. The thickness of engineering tire and giant tire steel cords is usually between 3mm and 13mm, with thick steel wire spacing and large steel wire spacing. The use of torque motors to drive disc knives will result in unstable trimming excess rubber, and the trimming excess rubber cannot meet the requirement of half steel wire spacing according to different steel wire spacing.

[0005] Therefore, there is a problem in the prior art that the trimming effect of the giant tire steel cord is poor. Summary of the invention

[0006] The main purpose of the present invention is to provide a cord trimming device and a steel cord processing system to solve the problem of poor trimming effect of giant tire steel cord in the prior art.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a curtain trimming device, comprising: a mounting assembly; a positioning assembly, the positioning assembly is arranged on the mounting assembly, at least a part of the positioning assembly can move relative to the mounting assembly, and the positioning assembly has a positioning channel for the curtain to pass through; a cutting assembly, the cutting assembly is arranged on the mounting assembly, in the movement direction of the curtain, the cutting assembly is located downstream of the positioning assembly and cuts the curtain passing through the positioning channel, and the cutting assembly can cut the curtain from both sides in the thickness direction of the curtain.

[0008] Furthermore, the positioning assembly includes at least two roller groups that are arranged opposite to each other, each roller group has a plurality of rollers, and a positioning channel is provided between the two roller groups that are arranged opposite to each other.

[0009] Further, the axial direction of the roller is the same as the width direction of the cord; and / or the number of rollers in each roller group is the same.

[0010] Furthermore, the circumferential side walls of at least three rollers of all the rollers of the two oppositely arranged roller groups have a first positioning protrusion or a second positioning protrusion, and a positioning gap is provided between the first positioning protrusion and the second positioning protrusion in the width direction of the curtain.

[0011] Furthermore, the positioning assembly also includes a first driving assembly, which is connected to the roller having the first positioning protrusion or the second positioning protrusion and drives the roller to move axially to adjust the distance between the first positioning protrusion and the second positioning protrusion.

[0012] Furthermore, there are two groups of rollers, each group of rollers has three rollers, and the rollers on both sides of the three rollers in one group of rollers have a first positioning protrusion respectively, and the roller in the middle has a second positioning protrusion. The positioning assembly also includes a first drive assembly, which is driven and connected to the roller with the second positioning protrusion to adjust the distance between the first positioning protrusion and the second positioning protrusion.

[0013] Furthermore, the positioning assembly includes a second driving assembly, which is drivingly connected to at least one of the two oppositely arranged roller groups so that the two opposite roller groups move in directions approaching or moving away from each other.

[0014] Furthermore, the positioning assembly includes a positioning plate, which is L-shaped and includes a first section and a second section connected in sequence, the first section is connected to the mounting assembly, and all the roller groups are arranged on the second section.

[0015] Furthermore, the cutting assembly comprises a first cutting portion and a second cutting portion which are arranged opposite to each other, the first cutting portion and the second cutting portion are meshed with each other and cut the curtain from two sides of the curtain respectively.

[0016] Furthermore, the mounting assembly includes: a mounting plate having a slide rail; a connecting plate movably disposed on the mounting plate and capable of moving along the slide rail, and the positioning assembly and the cutting assembly are respectively disposed on the connecting plate; and a third driving assembly, which is drivingly connected to the connecting plate.

[0017] Furthermore, the cord trimming device further comprises: a rubber edge guide assembly, which is located downstream of the cutting assembly, and at least a portion of the rubber edge guide assembly is connected to the connecting plate.

[0018] According to another aspect of the present invention, a steel cord fabric processing system is provided, comprising a frame, and the above-mentioned cord fabric trimming devices are respectively arranged on both sides of the frame.

[0019] Applying the technical solution of the present invention, the curtain trimming device in the present application includes a mounting assembly, a positioning assembly and a cutting assembly. The positioning assembly is arranged on the mounting assembly, at least a part of the positioning assembly can move relative to the mounting assembly, and the positioning assembly has a positioning channel for the curtain to pass through; the cutting assembly is arranged on the mounting assembly, in the direction of movement of the curtain, the cutting assembly is located downstream of the positioning assembly and cuts the curtain passing through the positioning channel, and the cutting assembly can cut the curtain from both sides in the thickness direction of the curtain.

[0020] When using the cord trimming device in the present application, since the cord trimming device has an installation component, the cord trimming device can be installed at the position where the cord passes through the installation component, thereby realizing the cutting of the side of the cord. In addition, since the cord trimming device also has a positioning component, when the cord passes through the positioning channel of the positioning component, the positioning component can adjust the position of the cord, thereby changing the relative position of the cord and the cutting component, and then adjusting the cutting position of the cord by the cutting component, ensuring that the cord trimming device in the present application can flexibly cut the side of the cord. At the same time, since the cutting component in the present application can cut the cord from both sides of the thickness direction of the cord, the cutting thickness of the cord trimming device in the present application can meet the thickness of the giant tire steel cord. Therefore, the cord trimming device in the present application effectively solves the problem of poor trimming effect of giant tire steel cord in the prior art.

[0021] Furthermore, since the above-mentioned cord trimming devices are respectively provided on both sides of the frame of the steel cord processing system in the present application, the steel cord processing system in the present application can simultaneously trim both sides of the giant tire steel cord. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 A schematic structural diagram of a cord trimming device according to a specific embodiment of the present invention is shown;

[0024] Figure 2 Shows Figure 1 A right side view of the cord trimming device in FIG.

[0025] Figure 3 Shows Figure 1 A top view of the cord trimming device in FIG.

[0026] Figure 4 A schematic diagram showing the positional relationship between a frame and a cord trimming device in a steel cord processing system according to a specific embodiment of the present application is shown;

[0027] Figure 5 A structural schematic diagram of a steel cord fabric processing system according to a specific embodiment of the present application is shown;

[0028] Figure 6 A schematic diagram of curtain trimming according to a specific embodiment of the present application is shown.

[0029] The above drawings include the following reference numerals:

[0030] 10. Installation assembly; 11. Installation plate; 12. Slide rail; 13. Connecting plate; 14. Third driving assembly; 20. Positioning assembly; 21. Roller group; 211. Roller; 212. First positioning protrusion; 213. Second positioning protrusion; 22. First driving assembly; 23. Positioning plate; 24. Second driving assembly; 30. Cutting assembly; 31. First cutting section; 32. Second cutting section; 40. Rubber edge guide assembly; 50. Frame; 60. Curtain trimming device; 70. Curtain guide roller mechanism; 80. Curtain tensioning assembly; 90. Clamping material pulling device; 100. Cutting host device; 200. Guide device; 300. Pad take-up device; 400. Steel curtain material roll; 500. Cutting conveyor belt device; 600. Curtain; 610. Steel wire; 620. Rubber; 630. Rubber edge. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0033] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0034] In order to solve the problem of poor trimming effect of giant tire steel cord in the prior art, the present application provides a cord trimming device and a steel cord processing system.

[0035] And, if Figure 4 and Figure 5 As shown, the steel cord fabric processing system in the present application includes a frame 50, and the following cord fabric trimming devices 60 are respectively arranged on both sides of the frame 50.

[0036] like Figures 1 to 6 As shown, the curtain trimming device in the present application includes a mounting assembly 10, a positioning assembly 20 and a cutting assembly 30. The positioning assembly 20 is arranged on the mounting assembly 10, at least a part of the positioning assembly 20 can move relative to the mounting assembly 10, and the positioning assembly 20 has a positioning channel for the curtain to pass through; the cutting assembly 30 is arranged on the mounting assembly 10, in the movement direction of the curtain, the cutting assembly 30 is located downstream of the positioning assembly 20 and cuts the curtain passing through the positioning channel, and the cutting assembly 30 can cut the curtain from both sides in the thickness direction of the curtain.

[0037] When the cord trimming device in the present application is used, since the cord trimming device has an installation assembly 10, the cord trimming device can be installed at the position where the cord 600 passes through the installation assembly 10, so as to achieve cutting of the side of the cord 600. In addition, since the cord trimming device also has a positioning assembly 20, when the cord passes through the positioning channel of the positioning assembly 20, the positioning assembly 20 can adjust the position of the cord, thereby changing the relative position of the cord and the cutting assembly 30, and then adjusting the cutting position of the cord by the cutting assembly 30, ensuring that the cord trimming device in the present application can flexibly cut the side of the cord. At the same time, since the cutting assembly 30 in the present application can cut the cord from both sides of the thickness direction of the cord, the cutting thickness of the cord trimming device in the present application can meet the thickness of the giant tire steel cord. Therefore, the cord trimming device in the present application effectively solves the problem of poor trimming effect of giant tire steel cord in the prior art.

[0038] In a specific embodiment of the present application, the cord trimming device is installed on a frame 50 of a steel cord processing system through a mounting assembly 10 .

[0039] And, in Figure 4 In the illustrated embodiment, since the above-mentioned cord trimming devices 60 are respectively provided on both sides of the frame 50 of the steel cord processing system in the present application, the steel cord processing system in the present application can simultaneously trim both sides of the giant tire steel cord.

[0040] Specifically, in Figures 1 to 3In the illustrated embodiment, the positioning assembly 20 includes at least two groups of roller groups 21 arranged opposite to each other, each group of roller groups 21 has a plurality of rollers 211, and a positioning channel is provided between the two groups of roller groups 21 arranged opposite to each other. In the present application, since the conveying device for transporting the curtain cloth does not transport the curtain cloth in a horizontal direction during the cutting process, but transports the curtain cloth in a vertical or approximately vertical direction, the curtain cloth moves in a vertical or approximately vertical direction when passing through the curtain cloth trimming device. Therefore, by providing at least two groups of roller groups 21 arranged opposite to each other, the two sides of the curtain cloth moving direction can be limited, thereby ensuring the stability of the cutting assembly 30 when cutting the curtain cloth. Since the roller group 21 has a plurality of rollers 211, that is, the rollers 211 can rotate relative to the curtain cloth when the curtain cloth passes through the positioning channel, thereby effectively reducing the resistance of the curtain cloth when passing through the positioning channel.

[0041] Moreover, the two roller groups 21 arranged opposite to each other in the present application can also play a supporting role for the curtain fabric.

[0042] Optionally, the axial direction of the roller 211 is the same as the width direction of the curtain. This arrangement can further ensure the positioning effect of the roller group on the curtain, so that the curtain can move in a preset direction. At the same time, this arrangement can further effectively reduce the resistance between the roller and the curtain, thereby ensuring the stable operation of the curtain trimming device.

[0043] Optionally, in Figures 1 to 3 In the embodiment shown, the number of rollers 211 in each roller group 21 is the same. By such an arrangement, when the curtain passes through the positioning channel, the stability of the curtain can be effectively guaranteed, and the force on the curtain can be more evenly guaranteed.

[0044] Specifically, the circumferential side walls of at least three rollers 211 of all the rollers 211 of the two roller groups 21 arranged opposite to each other have the first positioning protrusion 212 or the second positioning protrusion 213, and there is a positioning gap between the first positioning protrusion 212 and the second positioning protrusion 213 in the width direction of the curtain. In addition, the positioning assembly 20 also includes a first driving assembly 22, which is connected to the roller 211 having the first positioning protrusion 212 or the second positioning protrusion 213 and drives the roller 211 to move axially to adjust the distance between the first positioning protrusion 212 and the second positioning protrusion 213. In this embodiment, the total number of the first positioning protrusion 212 and the second positioning protrusion 213 is at least three, so that the linear positioning of the curtain can be achieved through all the first positioning protrusions 212 and the second positioning protrusions 213, so that the curtain can be ensured to move in a preset direction. At the same time, since there is a positioning gap between the first positioning protrusion 212 and the second positioning protrusion 213, the steel wire 610 in the curtain can be clamped by the first positioning protrusion 212 and the second positioning protrusion 213, and the steel wire 610 clamped by the first positioning protrusion 212 and the second positioning protrusion 213 can be changed at the same time, so that the relative position between the positioning assembly 20 and the curtain can be adjusted, thereby adjusting the relative position of the cutting assembly 30 and the curtain, and then changing the cutting position of the cutting assembly 30 on the curtain, so that the curtain trimming device in the present application can trim the curtain to different degrees.

[0045] That is to say, in the present application, in the direction in which the curtain passes, the first positioning protrusion 212 and the second positioning protrusion 213 are respectively at different positions in the length direction of the curtain, and the connecting line of all the first positioning protrusions 212 is parallel to the running direction of the curtain, and the connecting line of all the second positioning protrusions 213 is parallel to the running direction of the curtain. By driving the first driving component 22 on the first positioning protrusion 212 or the second positioning protrusion 213, the positioning gap between the first positioning protrusion 212 and the second positioning protrusion 213 can be changed, so as to ensure that the first positioning protrusion 212 and the second positioning protrusion 213 can clamp the steel wire in the curtain to achieve position adjustment or limit of the curtain. In the present application, by selecting the steel wire clamped by the first positioning protrusion 212 and the second positioning protrusion 213, the position adjustment of the curtain can be achieved. After the first positioning protrusion 212 and the second positioning protrusion 213 clamp the selected steel wire, the limit of the curtain can be achieved.

[0046] In a specific embodiment of the present application, Figures 1 to 3As shown, there are two groups of roller groups 21, each group of roller groups 21 has three rollers 211, wherein the rollers 211 located on both sides of the three rollers 211 of one group of roller groups 21 respectively have first positioning protrusions 212, and the roller 211 located in the middle has a second positioning protrusion 213, and the positioning assembly 20 also includes a first driving assembly 22, and the first driving assembly 22 is drivingly connected to the roller 211 with the second positioning protrusion 213 to adjust the distance between the first positioning protrusion 212 and the second positioning protrusion 213. In this embodiment, two first positioning protrusions 212 and one second positioning protrusion 213 of the three rollers 211 form staggered "V"-shaped protrusions, which are used to be embedded on both sides of a single steel wire near the edge of the curtain, preferably the second steel wire at the edge of the curtain. And by driving the second positioning protrusion 213, the curtain is slowly clamped to achieve the role of positioning and guiding.

[0047] Specifically, Figures 1 to 3 As shown, the positioning assembly 20 includes a second drive assembly 24, and the second drive assembly 24 is connected to at least one of the two roller groups 21 arranged opposite to each other, so that the two roller groups 21 move in a direction close to or away from each other. By setting it in this way, the positioning assembly 20 can be used to position curtains of different thicknesses. In other words, when the thickness of the curtain to be trimmed is different, the roller group 21 can be driven by the second drive assembly 24, so as to ensure that the positioning channel of the positioning assembly 20 can be adapted to the thickness of the curtain to be trimmed. In other words, in the present application, the second drive assembly 24 is set to drive the roller group 21, so as to achieve the adjustment of the size of the positioning channel, especially the size of the positioning channel corresponding to the thickness direction of the curtain to be trimmed.

[0048] Alternatively, if Figure 3 As shown, the positioning assembly 20 includes a positioning plate 23, which is L-shaped and includes a first section and a second section connected in sequence, the first section is connected to the mounting assembly 10, and all roller groups 21 are arranged on the second section. That is to say, in the present application, the positioning assembly 20 is installed on the mounting assembly 10 through the positioning plate 23, and the first section of the positioning plate 23 is used to connect with the mounting assembly 10, and the second section of the positioning plate 23 is used to set the roller group 21, and the purpose of setting the positioning plate 23 in an L shape is to reduce the interference between the roller group 21 and the mounting assembly 10 during use, thereby ensuring the stable operation of the cord trimming device.

[0049] Specifically, the cutting assembly 30 includes a first cutting portion 31 and a second cutting portion 32 that are arranged opposite to each other, and the first cutting portion 31 and the second cutting portion 32 are meshed with each other and cut the cord from both sides of the cord respectively. Of course, in the present application, the structural form of the first cutting portion 31 and the second cutting portion 32 can be adjusted to at least ensure that the cutting assembly 30 can simultaneously cut both sides of the cord in the thickness direction through the first cutting portion 31 and the second cutting portion 32. Preferably, the first cutting portion 31 and the second cutting portion 32 each have a circular cutter disc.

[0050] In a specific embodiment of the present application, the mounting assembly 10 includes a mounting plate 11 and a connecting plate 13. The mounting plate 11 has a slide rail 12; the connecting plate 13 is movably arranged on the mounting plate 11 and can move along the slide rail 12, and the positioning assembly 20 and the cutting assembly 30 are respectively arranged on the connecting plate 13; the third driving assembly 14, the third driving assembly 14 is drivingly connected to the connecting plate 13. Through such an arrangement, the connecting plate 13 can drive the positioning assembly 20 and the cutting assembly 30 to move together, thereby changing the relative position of the positioning assembly 20 and the cutting assembly 30 and the curtain cloth, thereby changing the trimming position of the curtain cloth, and then realizing the adjustment of the trimming glue amount, ensuring that the trimming glue residue meets the requirement of controlling the residue glue amount of half the steel wire spacing for different steel wire densities. In addition, it should be noted that the cutting part of the curtain cloth by the cutting assembly 30 in the present application is a part of the part of the curtain cloth passing through the positioning channel.

[0051] Optionally, the cord trimming device further includes a rubber edge guide assembly 40, which is located downstream of the cutting assembly 30, and at least a portion of the rubber edge guide assembly 40 is connected to the connecting plate 13. By such an arrangement, the rubber edge guide assembly 40 can be used to separate the cord edge material from the cord after cutting.

[0052] Optionally, the rubber edge guide assembly 40 includes: at least one guide roller, which is rotatably connected to the connecting plate 13; a conveyor belt, which is located downstream of the guide roller and can convey the cut edge; and a collecting hopper, which is located below the conveyor belt and can receive the rubber edge 630 conveyed by the conveyor belt. Of course, in the present application, the conveyor belt may not be provided, so that the edge is directly collected by the collecting hopper after the guide roller guides it out.

[0053] The third driving assembly 14 includes: a lead screw; a nut seat, which is fixedly connected to one end of the support plate, and the nut seat is rotatably connected to the lead screw and can move along the lead screw; a driving part, which is connected to one end of the lead screw and can drive the lead screw to rotate. In the present application, the form of the first driving assembly 22 and the second driving assembly 24 can be flexibly adjusted, as long as it is ensured that the first driving assembly 22 can drive the roller 211, and the second driving assembly 24 can drive the roller group 21. That is to say, in the present application, the first driving assembly 22 and the second driving assembly 24 can be structures such as a driving motor, a driving cylinder, or a driving structure that drives the lead screw nut.

[0054] In the present application, the steel cord processing system also includes a guide device 200, which is used to guide the steel cord fabric roll 400, and peel the padding cloth off and roll it onto the reel through the padding cloth winding device 300 and the padding cloth winding device 300. The peeled cord is actively transported to the cord trimming device position through the cord guide pull-out roller mechanism 70, and then the cord is tensioned and transported to the storage arc position by the cord tensioning assembly 80. At the same time, the trimmed rubber edge 630 is guided out by the rubber edge guide assembly 40 for recycling. The trimmed thick cord is pulled to a fixed length by the clamp pulling device 90, and is cut to a fixed length by the cutting host device 100. The cut cord strips are transported to the splicing joint device by the cutting conveyor belt device 500 for splicing and winding.

[0055] like Figure 6 The figure shows a schematic diagram of trimming the cord fabric, where the cord fabric 600 is composed of a plurality of mutually parallel steel wires 610 and rubber 620 which are calendered by a calendering machine. Assuming that the spacing between the steel wires is a, in order to ensure that the spacing between the steel wires after the two cord fabrics are joined is as close as possible, the relative positions of the positioning assembly 20 and the cutting assembly 30 are adjusted to achieve a trimming thickness of the excess rubber of 1 / 2 times a.

[0056] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: when using the cord trimming device in the present application, since the cord trimming device has an installation assembly 10, the cord trimming device can be installed at the position where the cord passes through the installation assembly 10, thereby realizing the cutting of the side of the cord. In addition, since the cord trimming device also has a positioning assembly 20, when the cord passes through the positioning channel of the positioning assembly 20, the positioning assembly 20 can adjust the position of the cord, thereby changing the relative position of the cord and the cutting assembly 30, and then can adjust the cutting position of the cord by the cutting assembly 30, ensuring that the cord trimming device in the present application can flexibly cut the side of the cord. At the same time, since the cutting assembly 30 in the present application can cut the cord from both sides of the thickness direction of the cord, the cutting thickness of the cord trimming device in the present application can meet the thickness of the giant tire steel cord. Therefore, the cord trimming device in the present application effectively solves the problem of poor trimming effect of giant tire steel cord in the prior art.

[0057] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0058] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0059] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cord trimming device, characterized in that: include: Installing assembly (10); a positioning assembly (20), the positioning assembly (20) being arranged on the mounting assembly (10), at least a portion of the positioning assembly (20) being able to move relative to the mounting assembly (10), and the positioning assembly (20) having a positioning channel for the curtain to pass through; A cutting assembly (30), wherein the cutting assembly (30) is arranged on the mounting assembly (10), and in the movement direction of the curtain, the cutting assembly (30) is located downstream of the positioning assembly (20) and cuts the curtain passing through the positioning channel, and the cutting assembly (30) can cut the curtain from both sides in the thickness direction of the curtain.

2. The cord trimming device according to claim 1, characterized in that: The positioning assembly (20) comprises at least two groups of roller groups (21) arranged opposite to each other, each group of the roller groups (21) comprises a plurality of rollers (211), and the positioning channel is provided between the two groups of roller groups (21) arranged opposite to each other.

3. The cord trimming device according to claim 2, characterized in that: The axial direction of the roller (211) is the same as the width direction of the curtain fabric; and / or The number of the rollers (211) in each roller group (21) is the same.

4. The cord trimming device according to claim 2, characterized in that: The circumferential side walls of at least three of the rollers (211) of all the rollers (211) of the two groups of roller groups (21) arranged opposite to each other have a first positioning protrusion (212) or a second positioning protrusion (213), and a positioning gap is provided between the first positioning protrusion (212) and the second positioning protrusion (213) in the width direction of the curtain.

5. The cord trimming device according to claim 4, characterized in that: The positioning assembly (20) further comprises a first driving assembly (22), wherein the first driving assembly (22) is connected to the roller (211) having the first positioning protrusion (212) or the second positioning protrusion (213) and drives the roller (211) to move axially to adjust the distance between the first positioning protrusion (212) and the second positioning protrusion (213).

6. The cord trimming device according to claim 4, characterized in that: The roller groups (21) are divided into two groups, each group of the roller groups (21) has three rollers (211), wherein the rollers (211) located on both sides of the three rollers (211) of one group of the roller groups (21) respectively have the first positioning protrusions (212), and the roller (211) located in the middle has the second positioning protrusion (213), and the positioning assembly (20) also includes a first driving assembly (22), and the first driving assembly (22) is drivingly connected to the roller (211) having the second positioning protrusion (213) to adjust the distance between the first positioning protrusion (212) and the second positioning protrusion (213).

7. The cord trimming device according to claim 2, characterized in that: The positioning assembly (20) comprises a second driving assembly (24), which is drivingly connected to at least one of the two roller groups (21) arranged opposite to each other, so that the two roller groups (21) arranged opposite to each other move in a direction approaching or moving away from each other.

8. The cord trimming device according to claim 2, characterized in that: The positioning assembly (20) further comprises a positioning plate (23), the positioning plate (23) being L-shaped and comprising a first section and a second section connected in sequence, the first section being connected to the mounting assembly (10), and all the roller groups (21) being arranged on the second section.

9. The cord trimming device according to any one of claims 1 to 8, characterized in that: The cutting assembly (30) comprises a first cutting portion (31) and a second cutting portion (32) which are arranged opposite to each other, wherein the first cutting portion (31) and the second cutting portion (32) are meshed with each other and cut the curtain fabric from two sides of the curtain fabric respectively.

10. The cord trimming device according to any one of claims 1 to 8, characterized in that: The mounting assembly (10) comprises: A mounting plate (11), wherein the mounting plate (11) has a slide rail (12); a connecting plate (13), the connecting plate (13) being movably arranged on the mounting plate (11) and being capable of moving along the slide rail (12), the positioning assembly (20) and the cutting assembly (30) being respectively arranged on the connecting plate (13); A third driving assembly (14), the third driving assembly (14) is drivingly connected to the connecting plate (13).

11. The cord trimming device according to claim 10, characterized in that: The cord trimming device also includes: A rubber edge guide assembly (40), the rubber edge guide assembly (40) is located downstream of the cutting assembly (30), and at least a portion of the rubber edge guide assembly (40) is connected to the connecting plate (13).

12. A steel cord fabric processing system, characterized in that: It comprises a frame (50), and the cord trimming device (60) according to any one of claims 1 to 11 is respectively arranged on both sides of the frame (50).

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