Synthetic chain, molding machine, and manufacturing method

Abstract

This invention relates to a synthetic chain comprising a plurality of links (1), each link (1) being composed of a Möbius strip comprising a plurality of layers (2) formed by winding the strip itself. Each link (1) comprises at least 13 layers (2), has a length of at least 50 cm and a height of at least 75 mm, and the layers (2) of each link (1) are attached by stitches (3) to form a group of up to 20 layers (2), and these stitches (3) are evenly distributed along each longitudinal side of the link (1), with a number between 1 and 30 stitches (3), such that the attachment of the layers (2) can withstand harsh environments. The invention also relates to a machine for manufacturing the chain and a method for manufacturing the chain.

Description

Technical Field

[0001] The present invention relates to a synthetic chain whose links are made of wound Möbius strips and has additional special characteristics, namely that the synthetic chain is designed for high load applications. This requires, in addition to the large size of the links, a large number of synthetic layers to be added in the production of each link. Thus, the layers are attached into groups with a specific number of layers, and each group is attached by stitching to prevent them from unraveling.

[0002] In addition, the present invention also discloses a molding machine and a method for molding a chain.

[0003] It has special applications in the field of chains used for lifting or securing heavy objects. Background Technology

[0004] During cargo transportation, it is often necessary to lift very heavy goods. For this purpose, cranes are usually used. Cranes are equipped with hooks, and the goods are hung on the hooks by chains, which are usually made of metal.

[0005] This type of metal chain has many drawbacks, making cargo handling complex and laborious. Specifically, the metal chain itself is very heavy, which adds extra weight to the load that the crane is lifting.

[0006] In addition, they are very prone to wear and tear because, besides being subjected to strong impacts during use, they are often operated in various weather conditions and may rust or otherwise change, which can have serious consequences when it happens.

[0007] An alternative to metal chains is synthetic chains made of Möbius-shaped links, which are formed by winding multiple layers of material together. These chains are made of high-strength materials and, because they include multiple fibers on the same strip, offer better performance than metal chains, enabling them to transport heavier loads.

[0008] Furthermore, these fiber strips are lighter, making them easier to use and move. Finally, because each fiber strip contains multiple fibers, even if the strip wears out, the fibers will break off individually in a very noticeable manner. In this case, the fiber strip can be replaced, thus preventing accidents.

[0009] Furthermore, the Möbius strip, or ring, deserves attention; it is a surface with a single face and a single edge. It possesses the properties of a mathematically non-orientable object, while also being a developable surface. This strip has been extensively studied for a long time due to its series of very special properties and has applications in multiple fields.

[0010] To form a Möbius strip, one must start with a strip of some material, rotate one end by half (i.e., rotate itself 180°), and finally attach the two ends together.

[0011] The main advantage of Möbius strips is that the entire fabric that makes up the strip thickness is subjected to the same working requirements, whereas the fabric inside a regular strip is shorter than the fabric outside, and therefore experiences greater stress during operation.

[0012] A typical application of Möbius strips is in the manufacture of chains, where each link is generated as a Möbius strip. Each link can be composed of a single layer or, more commonly, multiple layers, thereby improving its technical specifications in terms of load-bearing capacity.

[0013] The problems with metal chains become more pronounced when handling heavy loads. In such cases, the increased weight of the metal chain links, due to their larger size, actually exacerbates the chain's shortcomings. Currently, the most advanced synthetic Möbius chains, however, have the limitation of being unable to withstand such high loads due to their limited number of link layers.

[0014] Patent document EP3869063A1 discloses an apparatus for forming Möbius strip-shaped links, comprising a rotating module with an internal path in which the Möbius strip introduced into the rotating module is rotated and expanded 180°. The patent document also discloses a molding machine for forming synthetic chains, each link of which is a Möbius strip, thus exhibiting excellent wear resistance and the ability to withstand extremely high loads. Furthermore, the patent document discloses a method for forming synthetic chains using the molding apparatus, the method comprising the steps of pre-tensioning, stitching, and final tensioning of the links.

[0015] In addition to providing a chain with links made of Möbius strips, the present invention discloses a method for manufacturing these links and a machine for carrying out the method. Summary of the Invention

[0016] This invention proposes a solution to the problems identified in the prior art.

[0017] To this end, a synthetic chain composed of links made of Möbius strips is generated, which has two main characteristics:

[0018] - Larger size

[0019] - Configured through a very large number of layers.

[0020] In this configuration, each link has the following characteristics:

[0021] - At least 13 floors, and up to 100 floors;

[0022] - Height ranges from 75 mm to 400 mm;

[0023] - Length ranges from 50 to 300 centimeters.

[0024] This configuration can achieve a crushing capacity (MBL) of 200 to 4,000 tons.

[0025] However, these properties of synthetic chains are insufficient to lift or hold heavy loads. When dealing with loads larger than usual, using larger links seems obvious. In fact, it appears logical that link size increases linearly with load size. Furthermore, this increase in size affects not only the longitudinal dimension but also the thickness of the links.

[0026] Therefore, if transferred to a synthetic Möbius chain, the requirements for high weight loads would necessitate longer strips and more layers, which logically increases the thickness.

[0027] Because of the need to withstand enormous loads, these requirements present a problem for the chain: the relative positional stability between the links of a multi-layered Möbius chain is lacking, causing them to separate and preventing the chain from meeting its design requirements, thus only meeting significantly reduced requirements. This problem does not occur when the chain is already in operation, under load, and taut, but rather during the logistics process, from the time the chain is manufactured until it is positioned to perform a specific task.

[0028] In the current state of the art, synthetic chains are manufactured by stitching the layers of the links together in the flat sections and Möbius regions, limiting the maximum number of layers to between 14 and 20 due to the technical limitations of existing stitching machines and their accessories. Therefore, this method cannot increase the number of winding layers.

[0029] Although this problem has been solved using various methods, they have only provided partial solutions.

[0030] One solution is to use adhesives to attach the different layers of the chain links together. However, this approach has a problem: these adhesives cannot provide the required reliability in environments with extremely high safety requirements or harsh conditions (e.g., underwater), such environments may have very high requirements for long-term fatigue strength, high temperature conditions, or saline environments.

[0031] Another solution is to wrap each link in a loop with strips.

[0032] All of the above constitutes an unacceptable and enormous problem, which is precisely why the use of high-performance synthesis chains has not been implemented in practice.

[0033] This invention discloses a synthetic chain that can solve these problems.

[0034] Therefore, in order to prevent slippage between different layers of the chain link, stitching is performed by grouping the chain link layers, forming groups and maintaining perfect alignment of the groups so that they can work together.

[0035] In the chain manufacturing process, the first link is generated by accumulating Möbius strips until the target marking is reached. Next, two options may be available.

[0036] One option is to pre-tighten and sew the first link once it is manufactured so that the next link can be built on top of the first link, and so on for the remaining links.

[0037] Another option is to first create the first link, and then connect the subsequent links to the previous link in sequence. Once the chain is formed, the different links are then sewn together.

[0038] Regardless of the option used, after the chain links are manufactured, they must be pre-tightened before being sewn together one by one. The sewing process includes the following steps:

[0039] -Release the tension of the links to be stitched, so that a certain number of layers are separated from the links that will form the group of layers to be stitched.

[0040] - Use mechanical components to fix the transverse area to be stitched to prevent layer displacement.

[0041] - Separate the layers to be sutured so that they can be sutured.

[0042] - Sew together a segment of the chain link.

[0043] - Secure the sutured area to prevent layer displacement.

[0044] Perform the same operation on different segments that need to be sewn along the entire length of the chain.

[0045] - Repeat this process based on the planned number of layers.

[0046] - Repeat the above suturing process on the other side.

[0047] - Repeat this process for the remaining links.

[0048] These stitches are best done automatically, but can also be done manually. For longitudinal stitches, the number of stitches is 2 to 3; for transverse stitches, the number of stitches is 3 to 30, depending on the length of the chain link.

[0049] Preferably, the link also includes a sheath located at each end of the link, preferably made of the same material as the link, for the purpose of reinforcing the ends of the link to prevent fatigue, as this area of ​​the link is subject to the greatest friction and tension.

[0050] The sheath can be closed, formed by inserting different layers of material into it and assembling them into links before the chain is manufactured. However, the sheath can also be open, where the strips of each link are assembled after the chain is manufactured and mechanically closed by a reversible fastening device or by stitching.

[0051] A resin layer can also be added to the chain to improve the rigidity and impermeability of the chain links.

[0052] In addition, antimicrobial substances can be incorporated into the chain to prevent the adhesion of marine plants and animals.

[0053] Finally, these links can also incorporate ring-shaped retaining loops in the flat and Möbius regions to keep all the strips together.

[0054] The present invention also discloses a molding machine for forming synthetic chains. The machine consists of three independent stations or zones that operate sequentially:

[0055] - Molding station,

[0056] -Pre-tensioning station, and

[0057] - Chain link suturing station.

[0058] This molding station is similar to the molding station disclosed in patent document EP3869063A1 cited in the background section. It includes the following components:

[0059] - A fixed structure, including a pair of shafts into which two hollow rollers are inserted, and also capable of removing the two hollow rollers.

[0060] - A shuttle equipped with a piston is configured to be fixed at the end of the strip used to manufacture the chain.

[0061] - A mechanism configured to grip the end of a strip and wind the strip around a hollow roller, rotating it 180 degrees to create a Möbius strip.

[0062] - A fixing device configured to secure the second loop of strip to a portion of the first loop.

[0063] - A supply device configured to sequentially grasp, move, and release strips, thereby supplying strips in segments.

[0064] - A cutting device configured to cut strips after links have been made in a specific number of layers.

[0065] - Support element, configured to fix the completed link of the support element.

[0066] The pre-tensioning station consists of the following components:

[0067] - A fixed structure, including a pair of shafts into which two hollow rollers are inserted, and also capable of removing the two hollow rollers.

[0068] - Both the first interlocking device and the second interlocking device are movable.

[0069] -Removable bolts in each interlocking device,

[0070] - A fastening device, associated with one of the interlocking devices and capable of moving one of the interlocking devices.

[0071] The suture station consists of the following components:

[0072] - A fixed structure, including a pair of shafts into which two hollow rollers are inserted, and also capable of removing the two hollow rollers.

[0073] A movable base associated with a fixed structure, which includes a shaft.

[0074] -Second axis,

[0075] -Pressing device

[0076] - Separation device, and

[0077] - Sewing machine.

[0078] The present invention also discloses a method for manufacturing the disclosed link.

[0079] This method typically includes the following steps:

[0080] a) Manufacturing chain links,

[0081] b) Pre-tightened chain links,

[0082] c) Select the layer group of the chain segment.

[0083] d) Sew the layers together.

[0084] e) Repeat steps c) and d) until all layers of the chain segment are included in the group.

[0085] More specifically, this method can be carried out in two different ways.

[0086] The first embodiment focuses on each link of the chain. Once a link is manufactured, it is moved to the next station until the process is complete. Then the entire process is repeated for each remaining link.

[0087] The second embodiment completes the entire chain process at each station.

[0088] Therefore, according to the first embodiment, the method includes the following steps:

[0089] a1) Manufacturing chain links at the forming station,

[0090] b1) If it is the first link, transfer the link to the pre-tightening station; if another link has already been manufactured, transfer the generated link to the pre-tightening station.

[0091] c1) Install chain links on the shaft of the pre-tensioning station fixed structure.

[0092] d1) Move the interlocking device and fix the bolts in the holes of the hollow rollers, aligning them with the shaft.

[0093] e1) Activate the fastening device to disengage the interlocking device, thereby tightening the chain link.

[0094] f1) Remove the interlocking device.

[0095] g1) Use a robotic arm to remove link (1).

[0096] h1) Transfer the chain to the stitching station.

[0097] i1) Place link (1) on the shaft of the sewing station,

[0098] j1) Introduce a separator between two layers of a link to form a group with a specific number of layers.

[0099] k1) At least one segment of the group formed in the Möbius strip region is sutured.

[0100] l1) Remove the link from the shaft and place it on the second shaft.

[0101] m1) Repeat steps o) and p) until all layers of the chain belong to one group.

[0102] n1) Perform at least one suture in the flat area of ​​the chain segment (3).

[0103] o1) Repeat steps i1) to n1) until all layers (2) of the chain belong to one group.

[0104] p1) Place the stitched chain links on the forming station support.

[0105] q1) If the chain is not yet complete, return to step a).

[0106] r1) End process.

[0107] According to the second embodiment, the method includes the following steps:

[0108] a2) Fabricate chain links at the forming station.

[0109] b2) Place the stitched chain links on the forming station support.

[0110] c2) Create a series of links, each link connected to the previous link.

[0111] d2) Transfer the generated chain to the pre-tensioning station.

[0112] e2) Place the chain link on the shaft of the pre-tightening station fixing structure.

[0113] f2) Move the interlocking device and fix the bolt in the hole of the hollow roller, aligning it with the shaft.

[0114] g2) Activate the fastening device to disengage the interlocking device, thereby tightening the chain link.

[0115] h2) Remove the interlocking device.

[0116] i2) Use a robotic arm to remove the chain link.

[0117] j2) Repeat steps d)-h) for all links.

[0118] k2) If all links are pre-tensioned, move the chain to the sewing station.

[0119] l2) Place one of the chain links on the shaft of the sewing station.

[0120] m2) Introducing separators between two connected layers to form a group with a specific number of layers.

[0121] n2) Suture at least one segment of the group formed in the Möbius strip region.

[0122] o2) Remove the link from the shaft and place it on the second shaft.

[0123] p2) Perform at least one suture in the flat area of ​​the chain segment.

[0124] q2) Repeat steps l2) to p2) until all layers of the chain belong to one group.

[0125] r2) Place the stitched chain links on the forming station support.

[0126] s2) End process. Attached Figure Description

[0127] In addition to the above description herein, and to aid in a more illustrative understanding of the features of the invention, the description is accompanied by a set of drawings that form part of it, according to preferred and practical exemplary embodiments, wherein the following are shown for illustrative purposes and not for limitation:

[0128] Figure 1 The diagram shows a perspective view of a link of the chain of the present invention, which has a Möbius strip configuration and a series of transverse stitches along the link.

[0129] Figure 2 Show Figure 1 A perspective view of the chain links with sheaths at both ends.

[0130] Figure 3 A perspective view of a chain with three links is shown.

[0131] Figure 4 The invention is shown with, as Figure 2 A perspective view of the chain links shown.

[0132] Figure 5 This shows a chain segment consisting of a pair of suture layers.

[0133] Figure 6 A perspective view of the link forming station is shown.

[0134] Figure 7 A perspective view showing the formation process of the first layer of the chain segment.

[0135] Figure 8 A molding station with a robotic arm is shown.

[0136] Figure 9 A perspective view of the pre-tightening station of the present invention is shown.

[0137] Figure 10 A perspective view of the suture station during suturing in the Möbius strip region is shown.

[0138] Figure 11 This shows the stitching process performed on the flat portion of the chain link. Figure 10 The suture station in the middle.

[0139] Figure 12 This is a perspective view showing the end of the molding process, where the chain links have been fully formed.

[0140] Figure 13 The process of transporting formed links to a pre-tensioning station using a robot equipped with attached grippers is shown in perspective view.

[0141] Figure 14 The perspective view shows the orientation of the robot gripper and chain link as they reach the pre-tensioning station, at which point it is positioned above the roller.

[0142] Figure 15 The preload process is shown in perspective, with two pins securing the chain links and a hydraulic / electric device applying the preload force.

[0143] The following lists the various components shown in the figure and their corresponding reference numerals:

[0144] 1 link

[0145] 2nd floor

[0146] 3. Suturing

[0147] 4. Sheath

[0148] 5. Robotic Arm

[0149] 6. Robotic arm gripper

[0150] 10 Molding Station

[0151] 12-axis

[0152] 13 Hollow rollers

[0153] 14. Shuttle

[0154] 15 Pistons

[0155] 16 Fixing devices

[0156] 17. Supply device

[0157] 18 Cutting device

[0158] 19 Support components

[0159] 20 Pre-tensioning Station

[0160] 21 First Interlocking Device

[0161] 22 Second Interlocking Device

[0162] 23 bolts

[0163] 24 Fastening devices

[0164] 30 Stitching Station

[0165] 31 Mobile Base

[0166] 32 Second Axis

[0167] 33 Pressing device

[0168] 34. Sewing machine. Detailed Implementation

[0169] As previously stated, the present invention relates to a synthetic chain whose links are formed by winding Möbius-shaped strips, wherein each link consists of a large number of layers, such that these layers are attached in groups of a certain number, and each group is attached together by stitching.

[0170] Furthermore, the present invention also discloses a method for forming a chain and a machine for performing this method.

[0171] Figure 1 The link (1) represents the synthetic chain of the present invention. It can be seen that the link is formed by winding multiple layers (2) of synthetic strips, which rotate around their own axis to eventually achieve a Möbius structure.

[0172] In this link (1), it can be seen that the layer (2) has a transverse stitch (3), which means that the layers (2) will not separate from each other and cause the link to fall apart if the link is not tightened.

[0173] Figure 2 express Figure 1 The links in the chain have an additional sheath (4) at each bent end of the link (1). The function of the sheath (4) is to provide protection in the area of ​​the chain tension that is greatest, where the link (1) will bear the greatest stress, thereby preventing premature wear of the layers (2) of the link (1).

[0174] Figure 3 and Figure 4 They represent respectively by Figure 1 and Figure 2 A chain composed of links (1) in the chain.

[0175] Figure 5 This represents a chain segment (1) consisting of a large number of layers (2), wherein the layers (2) are attached by stitching (3) to form a group with a specific number of layers.

[0176] As mentioned above, the technique of making links (1) by sewing together a small number of layers (2) is known in the prior art. However, it is not possible to directly make links (1) with more than 13 to 20 layers (the specific number depends on the thickness of the layers (2)) because the needle of the sewing machine cannot penetrate the thickness formed by such a large number of strip layers (2).

[0177] therefore, Figure 5 The link (1) consists of a series of 20 layers (2) in groups, each of which has a series of stitches (3) to hold the layers (2) together. These stitches (3) ensure that the link (1) does not fall off, and the link can consist of multiple independent groups.

[0178] In order for the links (1) to have such a large number of layers (2), they must have large dimensions, with a minimum width of 75 mm and a length of 50 cm.

[0179] Description of the machine.

[0180] The present invention also discloses a machine for manufacturing a chain having links (1).

[0181] The machine consists of three clearly defined stations or areas that operate sequentially:

[0182] - Molding station (10)

[0183] -Pre-construction station (20), and

[0184] - Chain link suture station (30).

[0185] The movement of the link (1) between different stations (10, 20, 30) is achieved by a robotic arm (5) which is programmed to use grippers (6) to pick up the link.

[0186] The following will explain how the various parts of the machine and the chain are manufactured.

[0187] Figure 6 This refers to the forming station (10) of the machine.

[0188] In the forming station (10), the forming method of the chain of the present invention varies depending on whether the first link (1) is manufactured or subsequent links coupled to the first link are manufactured after the first link has been manufactured. Figure 6 The second scenario is shown, in which the first manufactured link (1) is placed in the support (19), which will be described in detail later. The machine itself is unaffected, but the manufacturing process is.

[0189] First, consider the manufacture of the first link (1), the process of which is performed by the machine as described below.

[0190] The forming station (10) consists of a fixed structure (11) which includes a pair of shafts (12) into which two hollow rollers (13) are inserted.

[0191] It also includes a shuttle (14) equipped with a piston (15), from which the links (1) of the chain are secured to the ends of the strips it manufactures. The strips are located in a storage area and will be supplied from there to the chain manufacturing machine for production.

[0192] The piston (15) moves to the area where the mechanism grips the end of the strip, which is responsible for moving the strip around the first hollow roller (13), rotating it about its longitudinal axis to configure a Möbius rotation, and moving it around the second hollow roller (13) to complete the layer (2) of the chain link (1).

[0193] At the end of the first layer (2), a fixing device (16) is responsible for securing the strip that will form the second layer (2) to the end of the first layer (2), so that the link (1) is closed. This fixing step is performed only at the end of the first layer (2). The fixing device (16) can achieve the fixing by applying ultrasound, adhesive or any other known material.

[0194] The supply device (17) is responsible for supplying strips to the forming station (10) so that the piston (15) can move without pulling out all the stored strips. For this purpose, the fixing device (16) is responsible for sequentially grabbing, moving and releasing the strips, thereby supplying strips in segments.

[0195] Repeat this process until the link (1) forms a predetermined number of layers (2) to form the link.

[0196] The cutting device (18) cuts the strip and then fixes the free end to the last layer (2) of the formed link (1). The mechanism that fixes the strip and is responsible for generating the layer (2) releases the strip and returns to the initial position, causing the piston (15) to grab the end of the strip, thereby creating a new link (1) or terminating the process.

[0197] In the second case to be considered, namely, if the first link (1) has already been manufactured, two options can be given.

[0198] The first option is to send the link (1) that has been removed from the forming station (10) to the subsequent stations (20, 30), first to the pre-tightening station (20) and then to the sewing station (30). Then, the link (1) is returned to the forming station (10), placed in the support (19), and the production of the next link (1) continues.

[0199] The second option is to generate a complete chain at the forming station (10) and then send the formed chain to other stations (20, 30).

[0200] In either case, the formed link (1) is transferred by the robotic arm (5).

[0201] Before manufacturing the next link (1), the newly manufactured link (1) is placed on the support (19) by the robotic arm (5), regardless of whether it remains at the forming station (10) or has been sent to other stations (20, 30). The other links (1) that make up the chain, if they have already been manufactured, are suspended on the support. Then, the robotic arm (5) returns the hollow roller (13) to the shaft (12) to begin the cycle of manufacturing the next link (1).

[0202] Once a link (1) has been created, whether it is the first link or a subsequent link, the following explains how to create subsequent links.

[0203] The shuttle (14) performs the same process again. The piston (80) and the shuttle act again, and the strip passes through the link (1) located in the support (19), and the mechanism begins to form the link (1) again, as described above.

[0204] Figure 7 This indicates the formation of the first layer (2) of the chain segment (1), and... Figure 6 Different perspectives.

[0205] Figure 8 The diagram shows a forming station (10) and a robotic arm (5) containing a gripper (6) for manipulating the chain link (1) via a hollow roller (13). Thus, to avoid losing tension in the chain link (1), the gripper (6) grasps the hollow roller (13) with the chain link (1) wrapped around it and removes it from the shaft (12), placing it onto the shaft (12) of the pre-tensioning station (20) or into the support (19). In the latter case, the robotic arm (5) releases the chain link (1) to remove the hollow roller (13) and, as previously described, places it back into the shaft (12) of the forming station (10).

[0206] Figure 9 The term "pre-tightening station (20)" refers to the pre-tightening station that pre-tightens the chain already generated in the forming station (10).

[0207] Preload refers to the axial load applied to the chain link (1) to ensure the position and geometry of each layer (2). Preload is a percentage of the chain's maximum working load.

[0208] The robotic arm (5) carries the chain link (1) in the gripper (6) and (optionally) the rest of the forming chain to the pre-tightening station (20). It positions the hollow rollers (13) on the shafts (12) located in the fixed structure, which are the same as the shafts of the forming station (1) to begin the pre-tightening process.

[0209] The pre-tightening station (20) includes a first interlocking device (21) and a second interlocking device (22), both of which are equipped with bolts (23).

[0210] The two interlocking devices (22, 23) are movable to position the bolt (23) in the hole of the hollow roller (13) with shaft (12) inserted, so that the bolt (23) is aligned with shaft (12).

[0211] Therefore, after the hollow rollers (13) are fixed, the chain links (1) they are fixed to are also fixed. The second interlocking device (22) is displaced by the fastening device (25) so that it is separated from the first interlocking device (21), thereby tightening the chain links.

[0212] Figure 10The suture station (30) is shown, which consists of a fixed structure on which a movable base (31) is located. The base includes another pair of shafts (12) identical to the previous ones, and a second shaft (32) perpendicular to the shafts (12) of all stations (10, 20, 30). The suture station (30) also includes a pressing device (33), a separating device, and a suture machine (34).

[0213] Therefore, the robotic arm (5) transports the chain from the pretensioning station (20) and assembles the hollow roller (13) onto the shaft (12) and into the pretensioning station (20), so that the sewing machine (34) can perform a series of stitches (3) in the Möbius strip region.

[0214] It should be noted that the needle of the sewing machine (34) is in a vertical position. In this position, the layers of the chain link (1) to be sewn are vertical, and no part can be sewn except for the Möbius strip area. The Möbius strip area is horizontal and is the only area that can be sewn.

[0215] Since the sewing machine (34) cannot sew the entire thickness of the chain link (1), the machine has a separator that is inserted between two layers (2) of the chain link (1) to form a group of a predetermined number of layers (2). In order to insert the separator, the chain link is loosened to create a space that allows the sewing machine (34) to work.

[0216] Then, the robotic arm (5) is removed, the movable base (31) is moved to a position, and the chain link (1) is positioned in the appropriate area to perform the stitching (3) of different segments.

[0217] After the stitching (3) of different segments of the Möbius strip region is completed, the movable base (31) will be removed so that the robotic arm (5) can grasp the hollow roller (13) and the chain link (1), positioning them on the second axis (32), thereby enabling the stitching (3) to be performed over the remaining length of the chain link (1), as follows. Figure 11 As shown.

[0218] After completing one set of sutures, the separation piece selects a new set and repeats the suturing process of the new set in the flat areas of the Möbius strip region and the chain segment (1) until all layers (2) are formed as part of the set.

[0219] In order to stitch (3) different segments in the chain link (1), the movable base (31) is moved to the appropriate position relative to the stitching machine (34).

[0220] To manufacture the chain of the present invention, the manufacturing machine can be used in two different ways.

[0221] In a first embodiment, the method includes the following steps:

[0222] a1) Make link (1) in forming station (10).

[0223] b1) If it is the first link (1), then the link (1) is transferred to the pre-tightening station (20); or if another link (1) has been manufactured, then the generated chain is transferred to the pre-tightening station (20).

[0224] c1) Place the chain link (1) on the shaft (12) of the fixed structure of the pre-tensioning station (20),

[0225] d1) Move the interlocking device (22, 23) and fix the bolt (23) in the hole of the hollow roller (13), aligning it with the shaft (12).

[0226] e1) Activate the fastening device (25) to disengage the interlocking devices (22, 23), thereby tightening the chain link (1).

[0227] f1) Remove the interlocking devices (22, 23).

[0228] g1) Use the robotic arm (5) to remove the chain link (1).

[0229] h1) Transfer the chain to the stitching station (30).

[0230] i1) Place the chain link (1) on the shaft (12) of the sewing station (30),

[0231] j1) A separator is introduced between the two layers (2) of the link (1) to form a group with a specific number of layers (2).

[0232] k1) At least one segment of the group formed in the Möbius strip region is sutured (3).

[0233] l1) will remove the link from shaft (12) and install it onto the second shaft (32).

[0234] m1) Repeat steps o) and p) until all layers (2) of chain segment (1) belong to one group.

[0235] n1) Perform at least one suture (3) in the flat area of ​​the chain segment (1).

[0236] o1) Repeat steps k1) to q1) until all layers (2) of chain segment (1) belong to one group.

[0237] p1) Place the stitched chain link (1) on the support (19) of the forming station (10),

[0238] q1) If the chain is not yet complete, return to step a).

[0239] r1) End process.

[0240] In the second embodiment, the method includes the following steps:

[0241] a2) Make link (1) in forming station (10).

[0242] b2) Place the stitched chain link (1) on the support (19) of the forming station (10),

[0243] c2) Create a series of links (1), each link being connected to the previous link.

[0244] d2) Transfer the generated chain to the pre-tensioning station (20).

[0245] e2) Place the link (1) on the shaft (12) of the fixed structure of the pre-tightening station (20),

[0246] f2) Move the interlocking devices (22, 23) and fix the bolt (23) in the hole of the hollow roller (13), aligning it with the shaft (12).

[0247] g2) Activate the fastening device (25) to disengage the interlocking devices (22, 23), thereby tightening the chain link (1).

[0248] h2) Remove the interlocking devices (22, 23).

[0249] i2) Use the robotic arm (5) to remove the chain link (1).

[0250] j2) Repeat steps d)-h) for all chain segments (1).

[0251] k2) If all links (1) are pre-tightened, move the chain to the stitching station (30).

[0252] l2) Place one of the chain links (1) on the shaft (12) of the sewing station (30),

[0253] m2) A separator is introduced between the two layers (2) of the link (1) to form a group with a specific number of layers (2).

[0254] n2) Suture at least one segment of the group formed in the Möbius strip region (3).

[0255] o2) Remove the link from shaft (12) and place it on the second shaft (32).

[0256] p2) Perform at least one suture (3) in the flat area of ​​the chain segment (1).

[0257] q2) Repeat step l2) to p2) until all layers (2) of chain segment (1) belong to one group.

[0258] r2) Place the stitched chain link (1) on the support (19) of the forming station (10),

[0259] s2) End process.

Claims

1. A synthetic chain comprising multiple links (1), each link (1) being composed of a strip, the strip comprising multiple layers (2) formed by winding the strip itself, wherein, The strip is a Möbius strip, characterized in that each link (1) comprises: - At least 13 layers (2). - The length must be at least 50 centimeters. - The height must be at least 75 mm. in: - The layers (2) of each link (1) are attached by stitching (3) into a group of up to 20 layers (2), and - The sutures (3) are evenly distributed along each longitudinal side of the chain link (1), with the number ranging from 1 to 30 sutures (3). This enables the attachment of layer (2) to withstand harsh environments.

2. The synthetic chain as described in claim 1, wherein, Each link (1) includes a sheath (4) at each end.

3. The synthetic chain as described in claim 2, wherein, The sheath (4) is made of the same material as the link (1) to which it is located.

4. The synthetic chain as described in claim 1, wherein, Each link (1) includes at least one annular retaining ring located on at least one longitudinal side.

5. A molding machine for forming links (1) of the synthetic chain as described in claim 1, characterized in that, The molding machine includes: - Molding station (10) -Pre-construction station (20), and - Chain link (1) suture station (30). in: The forming station (10) includes: - A fixed structure, including a pair of shafts (12), with two hollow rollers (13) inserted into the pair of shafts (12) and also capable of being removed. - A shuttle (14) equipped with a piston (15) is configured to be fixed at the end of a strip used to make a link (1). - A mechanism configured to grip the end of a strip and wind the strip around a hollow roller (13), rotating it 180 degrees to generate a Möbius strip. - Fixing device (16), configured to fix the second loop of strip to the segment of the first loop, - A supply device (17) is configured to sequentially grasp, move, and release the strip, thereby supplying the strip in segments. - Cutting device (18), configured to cut strips after making links in a specific number of layers (2), - Support (19), configured to secure the completed link (1). The pre-tensioning station (20) includes: - A fixed structure, including a pair of shafts (12), with two hollow rollers (13) inserted into the pair of shafts (12) and also capable of being removed. - The first interlocking device (21) and the second interlocking device (22) are both movable. - Movable bolts (23) in each interlocking device (21, 22). - Fastening device (24), associated with one of the interlocking devices (21, 22) and capable of moving one of the interlocking devices (21, 22), The suture station (30) includes: - A fixed structure, including a pair of shafts (12), with two hollow rollers (13) inserted into the pair of shafts (12) and also capable of being removed. - A movable base (31) associated with a fixed structure, the movable base (31) containing a shaft (12). - Second axis (32). - Pressing device (33). - Separation device, and - Stitching machine (34).

6. A method for manufacturing the synthetic chain as described in claim 1, characterized in that, The method includes the following steps: a) Making links (1) b) Pre-tightened link (1) c) Select the group of layer (2) of link (1), d) Sew the group of layers (2) together. e) Repeat steps c) and d) until all layers (2) of chain segment (1) are included in the group.

7. The method for manufacturing the synthetic chain as described in claim 6, characterized in that, The method includes the following stages: a1) Make link (1) at forming station (10). b1) If it is the first link (1), then the link (1) is transferred to the pre-tightening station (20), or if another link (1) has been manufactured, then the generated chain is transferred to the pre-tightening station (20). c1) Place the chain link (1) on the shaft (12) of the fixed structure of the pre-tensioning station (20), d1) Move the interlocking device (22, 23) and fix the bolt (23) in the hole of the hollow roller (13), aligning it with the shaft (12). e1) Activate the fastening device (25) to disengage the interlocking devices (22, 23), thereby tightening the chain link (1). f1) Remove the interlocking devices (22, 23). g1) Use the robotic arm (5) to remove the chain link (1). h1) Transfer the chain to the stitching station (30). i1) Place the chain link (1) on the shaft (12) of the sewing station (30), j1) A separator is introduced between the two layers (2) of the link (1) to form a group with a specific number of layers (2). k1) At least one segment of the group formed in the Möbius strip region is sutured (3). l1) Remove the link from shaft (12) and place it on the second shaft (32). n1) Perform at least one suture (3) in the flat area of ​​the chain segment (1). o1) Repeat steps i1) to n1) until all layers (2) of chain link (1) belong to one group. p1) Place the stitched chain link (1) on the support (19) of the forming station (10), q1) If the chain is not yet complete, return to step a). r1) End process.

8. The method for manufacturing the synthetic chain as described in claim 6, characterized in that, The method includes the following stages: a2) Make link (1) in forming station (10). b2) Place the stitched chain link (1) on the support (19) of the forming station (10), c2) Create a series of links (1), each link being connected to the previous link. d2) Transfer the generated chain to the pre-tensioning station (20). e2) Place the link (1) on the shaft (12) of the fixed structure of the pre-tightening station (20), f2) Move the interlocking devices (22, 23) and fix the bolt (23) in the hole of the hollow roller (13), aligning it with the shaft (12). g2) Activate the fastening device (25) to disengage the interlocking devices (22, 23), thereby tightening the chain link (1). h2) Remove the interlocking devices (22, 23). i2) Use the robotic arm (5) to remove the chain link (1). j2) Repeat steps d)-h) for all chain segments (1). k2) If all links (1) are pre-tightened, move the chain to the stitching station (30). l2) Place one of the chain links (1) on the shaft (12) of the sewing station (30), m2) A separator is introduced between the two layers (2) of the link (1) to form a group with a specific number of layers (2). n2) Suture at least one segment of the group formed in the Möbius strip region (3). o2) Remove the link from shaft (12) and place it on the second shaft (32). p2) Perform at least one suture (3) in the flat area of ​​the chain segment (1). q2) Repeat step l2) to p2) until all layers (2) of chain segment (1) belong to one group. r2) Place the stitched chain link (1) on the support (19) of the forming station (10), s2) End process.

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